Watch waterproof structure, watch and watch waterproof method
By designing the deformed contact between the oil storage tank and the waterproof ring in the waterproof structure of the watch, the problems of low waterproof ability and difficulty in assembly in the traditional watch waterproof structure are solved, and higher waterproof performance and easier assembly are achieved.
Patent Information
- Application Number
- CN202510543071.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-28
- Publication Date
- 2025-06-13
AI Technical Summary
In traditional watch waterproof structures, waterproof components with circular cross-sections are elastically deformed under the action of assembly preloading force, but their contact area is small and the oil film is narrow, which is easy to be destroyed, resulting in low waterproofing ability and high requirements for the assembly preloading force of watch components, making assembly difficult.
Design a watch waterproof structure, which includes opening an oil storage tank on the component to be sealed and engaged, and applying waterproof oil to the surface of the waterproof ring. The waterproof ring deforms under the action of assembly preload force and partially squeezes into the oil storage tank, and extrudes in contact with the waterproof oil to increase the pressure and surface tension of the waterproof oil.
It improves the waterproof ability of the watch, reduces the preloading requirements for the assembly of watch components, is easy to assemble, and expands the diversity and application scenarios of the watch structure.
Smart Images
Figure CN120143578A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of watches, and particularly to a waterproof structure for a watch, a watch and a waterproof method for a watch. Background Art
[0002] With the diversification of watch usage scenarios, watches have expanded from daily commuting and other usage scenarios to outdoor sports, water sports, and even special environments with steam or contact with organic solvents. Therefore, the quality of the waterproof performance of a watch directly determines its usage performance and service life in certain special scenarios. In traditional watch structures, an ordinary waterproof ring with a circular cross-section (such as an O-ring made of nitrile rubber or fluororubber) is mostly used for waterproof sealing. By applying a layer of waterproof oil film on the outer side of the waterproof ring, and using the squeezing deformation of the front ring and the watch case on the waterproof ring or the squeezing deformation of the bottom cover and the watch case on the waterproof ring, a compression sealing groove is formed at the joint to achieve the purpose of sealing and waterproofing.
[0003] In the above waterproof structure, the waterproof component 1 with a circular cross-section undergoes elastic deformation under the assembly pre-tightening force of the watch components (as shown in Figure 1 ), a waterproof oil is applied on the surface of the waterproof component 1, and the internal static pressure maintained by the waterproof oil film 2 due to its surface tension is used to block the internal and external pressure difference 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 the existence of the oil film and keep the thickness of the oil film small, thereby achieving a certain degree of waterproofing. The watch case 3 and the front ring 4 are usually connected in an interference fit or by threading to form an installation groove, and the waterproof component 1 is installed in the installation groove and undergoes elastic deformation when being squeezed by the watch case 3 and the front ring 4, thereby forming a sealed waterproof structure. The waterproof component 1 is an elastic component with a circular cross-section, and the contact area between it and the watch case 3 and the front ring 4 is small after being squeezed. The width of the oil film formed at the contact part between the waterproof component 1 and the watch components for waterproofing is narrow, and the oil film is easily damaged, thereby causing the waterproofing of the watch to fail and resulting in a low waterproof ability of the watch. Moreover, once this waterproof structure comes into contact with oil solvents, it will cause the loss or deterioration of the waterproof oil, greatly reducing the waterproof ability of the watch. In addition, this structure has high requirements for the pre-tightening force received by the waterproof component, which also imposes certain restrictions on the structural design of the watch. Once the pre-tightening force is increased, the assembly becomes more difficult. Summary of the Invention
[0004] Based on this, it is necessary to provide a waterproof structure for a watch, a watch and a waterproof method for a watch that have low requirements for the pre-tightening force of the watch waterproof components, are easy to assemble, and have good waterproof performance in view of the above deficiencies.
[0005] A waterproof structure for a watch, comprising a first member and a second member to be hermetically joined, and a waterproof ring disposed between the first member and the second member. The first member has a first sealing surface that fits against the waterproof ring, and the second member has a second sealing surface that fits against the waterproof ring. A first oil storage groove is formed in the first sealing surface, and a second oil storage groove is formed in the second sealing surface. The first oil storage groove and the second oil storage groove are filled with waterproof oil. When the waterproof ring is compressed, it deforms and partially extrudes into the first oil storage groove and the second oil storage groove to make extrusion contact with the waterproof oil. An oil film is provided on the first sealing surface at the edge of the first oil storage groove and on the second sealing surface at the edge of the second oil storage groove, which adheres to the surface of the waterproof ring.
[0006] In one embodiment, the cross-section of the first oil storage groove is in a V-shaped structure, a U-shaped structure or a W-shaped structure, and the cross-section of the second oil storage groove is in a V-shaped structure, a U-shaped structure or a W-shaped structure.
[0007] In one embodiment, the cross-section of the waterproof ring is in a circular structure, an oval structure or a rectangular structure. Protrusions are formed on the surface of the waterproof ring to form a first protrusion that fits into the first oil storage groove and / or a second protrusion that fits into the second oil storage groove. The height of the first protrusion is less than the depth of the first oil storage groove, and the height of the second protrusion is less than the depth of the second oil storage groove.
[0008] In one embodiment, the oil film is in a rectangular sheet structure or a wedge structure.
[0009] In one embodiment, the first member is a watch case, and the second member is a bezel or a back cover.
[0010] In one embodiment, a step is provided on the first member, and an annular boss corresponding to the step is provided on the second member. The end of the annular boss abuts against the step, and the outer side surface 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 jointly form an installation groove. The waterproof ring is inserted into the installation groove and makes extrusion contact with the waterproof oil in the first oil storage groove and the second oil storage groove.
[0011] The present invention also discloses a watch, which includes the above-mentioned waterproof structure for a watch.
[0012] The present invention also discloses a waterproof method for a watch, comprising the following steps:
[0013] S1. Oil storage grooves are respectively formed in the sealing joint surfaces of two watch members to be hermetically joined;
[0014] S2. Waterproof oil is coated on the surface of the waterproof ring;
[0015] S3. Place the waterproof ring coated with waterproof oil between two watch components to be hermetically joined, and let the two watch components jointly squeeze the waterproof ring so that the waterproof ring deforms and partially squeezes into the oil storage groove to form a waterproof structure.
[0016] In one embodiment, in step S3, embed the waterproof ring coated with waterproof oil between the two assembled watch components; or place the waterproof ring coated with waterproof oil on the sealing joint surface of one watch component, and then press and cover the other watch component on the waterproof ring and fix the two watch components.
[0017] In one embodiment, the cross-section of the oil storage groove is in a V-shaped structure, a U-shaped structure or a W-shaped structure, the cross-section of the waterproof ring is in a circular structure, an oval structure or a rectangular structure, and the surface of the waterproof ring bulges to form a convex part embedded in the oil storage groove.
[0018] Implement the watch waterproof structure, watch and watch waterproof method of the present invention. Open a first oil storage groove and a second oil storage groove on the first component and the second component to be hermetically joined. The waterproof ring undergoes elastic deformation under the action of the assembly pre-tightening force of the first component and the second component, so that after deformation, the waterproof ring partially squeezes into the oil storage groove to further squeeze the waterproof oil in the oil storage groove, increasing the pressure on the waterproof oil and also increasing the surface tension of the waterproof oil, thereby improving the waterproof ability of the watch. It has low requirements for the assembly pre-tightening force of the watch components, is easy to assemble, has no restriction on the watch structure design, expands the diversity of the watch structure, and has a wider application scenario; when the watch comes into contact with oil-based solvents, the design of the first oil storage groove and the second oil storage groove can still ensure sufficient waterproof oil and guarantee the waterproof ability of the watch. Description of the Drawings
[0019] Figure 1 Is the waterproof principle diagram of a traditional watch;
[0020] Figure 2 Is the waterproof principle diagram of the watch waterproof structure in an embodiment of the present invention;
[0021] Figure 3 Is the partial structure schematic diagram of the watch waterproof structure in an embodiment of the present invention;
[0022] Figure 4 Is the cross-sectional structure schematic diagram of the first component in an embodiment of the present invention;
[0023] Figure 5 Is the cross-sectional structure schematic diagram of the second component in an embodiment of the present invention. Detailed Embodiments
[0024] To make the above objects, features, and advantages of the present invention more apparent and understandable, the following will describe the specific embodiments of the present invention in detail with reference to the accompanying drawings. Many specific details are set forth in the following description to facilitate a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.
[0025] Aiming at the deficiencies of the traditional watch waterproof structure, such as the narrow width of the oil film, the easy loss and deterioration of the waterproof oil, and the high pre-tightening force for the assembly of watch components, this solution first conducts a force analysis on the waterproof oil film. It is found that the wider the width of the oil film, the stronger its waterproof ability. Specifically, when there is an internal and external pressure difference, the oil film is subjected to shear force in the width direction, and the wider the width, the stronger the shear resistance. The thinner the thickness of the oil film, the stronger its waterproof ability. The closer the oil film is to the contact surface with watch components (such as the watch case, bezel, or back cover) or the waterproof ring, the stronger its viscous effect and the better its shear resistance. Since the pressure exerted on the oil film by the elastic deformation of the waterproof ring is limited and not sufficient to penetrate the oil film in the thickness direction (for example: the rotor of a steam turbine weighing dozens of tons does not rely on the bearing bush to support it, but floats on a thin layer of oil film), therefore, it is impossible to penetrate the oil film in the thickness direction in a watch, and the thickness of the oil film can be reduced as much as possible to improve the waterproof performance of the watch. In addition, since the elastic deformation of the waterproof ring is achieved by the assembly pre-tightening force of the watch components, but increasing the pre-tightening force is restricted by the watch structure design and the difficulty of assembly, the pressure provided by the waterproof ring to the oil film is limited. Therefore, in this solution, by optimizing the structures of the watch components and the waterproof ring, while reducing the thickness of the waterproof oil film, the width of the waterproof ink is increased to comprehensively improve the waterproof performance of the watch.
[0026] Specifically, please refer to Figure 2-5, the present invention discloses a watch waterproof structure that has low requirements for the pre-tightening force of the waterproof component of the watch, 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 hermetically joined, and a waterproof ring 300 disposed between the first component 100 and the second component 200. Among them, the first component 100 is a watch case, and the second component 200 is a front ring or a back cover. The first component 100 has a first sealing surface 110 that fits the waterproof ring 300, and the second component 200 has a second sealing surface 210 that fits the waterproof ring 300. Preferably, in this embodiment, the first component 100 is a watch case, the second component 200 is a front ring, the second sealing surface 210 is parallel and opposite to 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 elastic properties so that the waterproof ring 300 can deform when subjected to the common assembly pre-tightening pressure of the first component 100 and the second component 200, thereby blocking the area between the first sealing surface 110 and the second sealing surface 210 and realizing the sealing isolation between the inner and outer sides of the area surrounded by the first component 100 and the second component 200. A first oil storage groove 120 is formed on the first sealing surface 110, a second oil storage groove 220 is formed on the second sealing surface 210, and the first oil storage groove 120 and the second oil storage groove 220 are filled with waterproof oil 400; when the waterproof ring 300 is compressed, it deforms and partially squeezes into the first oil storage groove 120 and the second oil storage groove 220 to make extrusion contact with the waterproof oil 400; on the first sealing surface 110 at the edge of the first oil storage groove 120 and on the second sealing surface 210 at the edge of the second oil storage groove 220, oil films 500 attached to the surface of the waterproof ring 300 are provided.
[0027] It can be understood that in this embodiment, both the first sealing surface 110 and the second sealing surface 210 are annular flat surfaces. The waterproof ring 300 is abutted between the first sealing surface 110 and the second sealing surface 210, so that the relatively positioned and to-be-sealed joint parts on the first member 100 and the second member 200 are always sealed and waterproofed by the waterproof ring 300 after elastic deformation. The first oil storage groove 120 is an annular groove arranged on the first sealing surface 110 and extending along the circumferential direction of the first sealing ring, and the second oil storage groove 220 is an annular groove arranged on the second sealing surface 210 and extending along the circumferential direction of the second sealing ring. Thus, when the waterproof ring 300 is jointly extruded and deformed by the first member 100 and the second member 200, a part of the waterproof ring 300 is embedded into the first oil storage groove 120 and the second oil storage groove 220. On the one hand, it increases the contact area between the waterproof ring 300 and the first member 100 and the second member 200; on the other hand, through the extrusion of the waterproof oil 400 by the deformed parts of the waterproof ring 300 located in the first oil storage groove 120 and the second oil storage groove 220, the pressure received by the waterproof oil 400 and the oil film 500 is increased, the surface tension of the waterproof oil 400 is improved, and the sealing isolation on both sides of the first oil storage groove 120 and both sides of the second oil storage groove 220 is ensured. Thus, even when the assembly pre-tightening force of the first member 100 and the second member 200 on the waterproof ring 300 is small, as long as it is ensured that the local deformed parts of the waterproof ring 300 are embedded into the first oil storage groove 120 and the second oil storage groove 220 and the waterproof oil 400 is extruded, the waterproof effect can be ensured. At the same time, the extrusion of the oil film 500 by the deformed parts of the waterproof ring 300 located outside the first oil storage groove 120 and the second oil storage groove 220 makes the oil film 500 thinner and wider, thereby further improving the shear resistance of the ink and further improving the waterproof effect of this part. In addition, in this solution, the waterproof oil 400 is sealed by the first oil storage groove 120 and the second oil storage groove 220. When the watch comes into contact with oil solvents, even if the oil film 500 outside the first oil storage groove 120 and the second oil storage groove 220 is damaged or deteriorated, the waterproof oil 400 in the first oil storage groove 120 and the second oil storage groove 220 can still play the role of waterproof isolation and sealing to ensure the waterproof performance of the watch.
[0028] In one embodiment, the cross-section of the first oil storage groove 120 is in a V-shaped structure or a U-shaped structure or a W-shaped structure, and the cross-section of the second oil storage groove 220 is in a V-shaped structure or a U-shaped structure or a W-shaped structure. The cross-sectional shape of the first oil storage groove 120 may be the same as or different from that of the second oil storage groove 220. The cross-section of the waterproof ring 300 is in a circular structure or an oval structure or a rectangular structure. In this embodiment, the cross-section of the waterproof ring 300 is in a flat rectangular structure 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 waterproof performance of the watch.
[0029] Furthermore, the surface of the waterproof ring 300 is raised to form a first convex portion (not shown) embedded in the first oil storage tank 120, or / and a second convex portion 310 embedded in the second oil storage tank 220, the height of the first convex portion is less than the depth of the first oil storage tank 120, and the height of the second convex portion 310 is less than the depth of the second oil storage tank 220. It can also be understood that the size of the first convex portion needs to be satisfied, and the first convex portion can be completely embedded in the first oil storage tank 120, so that the waterproof ring 300 abuts against the edge of the notch of the first oil storage tank 120 and fits with the first sealing surface 110, and when the first convex portion is embedded in the first oil storage tank 120, the end of the first convex portion does not contact the bottom surface of the groove of the first oil storage tank 120, so as to ensure that the first convex portion squeezes the waterproof oil 400 in the first oil storage tank 120. In this way, the waterproof ring 300 blocks the edge of the notch of the first oil storage tank 120, so that the waterproof oil 400 is confined in the first oil storage tank 120 and is jointly limited by the first convex portion and the inner wall of the first oil storage tank 120. As the first convex portion is squeezed and deformed, the squeezing force on the waterproof oil 400 in the first oil storage tank 120 increases, thereby increasing the surface tension of the waterproof oil 400 in the first oil storage tank 120 and improving the waterproof effect. Similarly, the size of the second convex portion 310 needs to be satisfied, and the second convex portion 310 can be completely embedded in the second oil storage tank 220, so that the waterproof ring 300 abuts against the edge of the notch of the second oil storage tank 220 and fits with the second sealing surface 210, and when the second convex portion 310 is embedded in the second oil storage tank 220, the end of the second convex portion 310 does not contact the bottom surface of the groove of the second oil storage tank 220, ensuring that the second convex portion 310 squeezes the waterproof oil 400 in the second oil storage tank 220. In this way, by blocking the edge of the notch of the second oil storage tank 220 with the waterproof ring 300, the waterproof oil 400 is confined in the second oil storage tank 220 and is jointly limited by the second protrusion 310 and the inner wall of the second oil storage tank 220. As the second protrusion 310 is squeezed and deformed, the squeezing force on the waterproof oil 400 in the second oil storage tank 220 increases, thereby increasing the surface tension of the waterproof oil 400 in the second oil storage tank 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, the waterproof ring 300 can be prevented from being squeezed and twisted during the assembly process and then separated from the area between the first sealing surface 110 and the second sealing surface 210, thereby avoiding displacement of the waterproof ring 300, thereby reducing the difficulty of installing the waterproof ring 300 and ensuring the waterproof performance of the waterproof structure of the watch.
[0030] In one embodiment, the oil film 500 has a rectangular sheet structure or a wedge structure. Specifically, when the cross-section of the waterproof ring 300 has a circular or elliptical structure, the oil film 500 has a wedge structure and fills the slits between the waterproof ring 300 and the edge of the notch of the first oil storage groove 120 and between the waterproof ring 300 and the edge of the notch of the second oil storage groove 220; when the cross-section of the waterproof ring 300 has a rectangular structure, the oil film 500 has a rectangular sheet structure and fills the slits between the waterproof ring 300 and the edge of the notch of the first oil storage groove 120 and between the waterproof ring 300 and the edge of the notch of the second oil storage groove 220.
[0031] In one embodiment, a step 130 is provided on the first member 100, and an annular boss 230 corresponding to the step 130 is provided on the second member 200. The end of the annular boss 230 abuts against the step 130, and the outer side surface 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 and opposite to each other and jointly enclose an installation groove 600. The waterproof ring 300 is inserted into the installation groove 600 and is in extrusion contact with the waterproof oil 400 in the first oil storage groove 120 and the second oil storage groove 220. Specifically, in this embodiment, the first member 100 is a watch case, and the second member 200 is a front ring. The upper surface of the watch case forms the first sealing surface 110, and the first oil storage groove 120 is formed on the first sealing surface 110. A step 130 penetrating the first sealing surface 110 is provided on the inner side surface of the watch case; the lower surface of the front ring forms the second sealing surface 210, and an annular boss 230 extending toward the watch case is provided on one side of the second sealing surface 210 adjacent to the center of the front ring. The outer ring surface of the annular boss 230 is provided with an external thread, and the side surface of the step 130 is provided with an internal thread corresponding to the external thread. In this way, the assembly of the front ring and the watch case can be realized through the threaded connection between the annular boss 230 and the side surface of the step 130. By limiting the height of the annular boss 230, the height of the installation groove 600 is limited to adapt to the installation of the waterproof ring 300. After the waterproof oil 400 is coated on the outer surface of the waterproof ring 300 and the waterproof ring 300 is installed in the installation groove 600, the upper surface of the waterproof ring 300 abuts against the second sealing surface 210 of the second member 200, and the lower surface of the waterproof ring 300 abuts against the first sealing surface 110 of the first member 100. The second member 200 and the first member 100 extrude the waterproof ring 300 and cause elastic deformation to form a waterproof sealing structure.
[0032] In this embodiment, the cross-sectional shape of the second oil storage tank 220 is a U-shaped structure, the cross-section of the first oil storage tank 120 is a V-shaped structure, and the notch width of the second oil storage tank 220 is greater than that of the first oil storage tank 120. 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 convex portion 310 for embedding in the second oil storage tank 220. The second convex portion 310 is in clearance fit with the second oil storage tank 220. While quickly positioning the waterproof ring 300 and facilitating the installation of the waterproof ring 300, it can avoid the problem that the waterproof ring 300 is distorted and separated from the installation groove 600 caused by extrusion.
[0033] The present invention also discloses a watch, which includes the above-mentioned watch waterproof structure. There are multiple watch waterproof structures provided on the watch. Specifically, the mating part of the lower part of the watch case and the bottom cover forms a watch waterproof structure. In this watch waterproof structure, the lower part of the watch case serves as the first component, and the back cover serves as the second component. The above-mentioned waterproof ring is provided at the sealed joint part of the two, and the first oil storage tank and the second oil storage tank are provided at the corresponding positions on the lower part of the watch case and the upper part of the back cover to achieve the waterproof and sealed connection between the watch case and the back cover. Similarly, the mating part of the upper part of the watch case and the bezel forms another watch waterproof structure. In this watch waterproof structure, the upper part of the watch case serves as the first component, and the bezel serves as the second component. The above-mentioned waterproof ring is provided at the sealed joint part of the two, and the first oil storage tank and the second oil storage tank are provided at the corresponding positions on the upper part of the watch case and the lower part of the bezel to achieve the waterproof and sealed connection between the watch case and the bezel. The specific structure and working principle of these two watch waterproof structures can refer to the description of the foregoing watch waterproof structure, and will not be elaborated here.
[0034] The watch further includes a watch glass hermetically covered on the bezel, a movement, a dial, a hand assembly housed in the watch case, and a stem passing through the watch case and inserted into the inner cavity of the watch case to be drivingly connected to the movement. Of course, the movement can be an electronic movement or a mechanical movement. That is, the functions of the watch in this embodiment can be the same as those of any electronic watch or mechanical watch on the market. Its main improvement lies in the improvement of the watch waterproof structure, and the working principle of the watch will not be described here.
[0035] In addition, the present invention also discloses a watch waterproof method, which is implemented by using the above-mentioned watch waterproof structure. Specifically, the watch waterproof method in this embodiment includes the following steps:
[0036] S1. Open oil storage tanks on the sealed joint surfaces of the two watch components to be hermetically joined respectively.
[0037] Specifically, the two watch components to be hermetically joined are the first component 100 and the second component 200. The hermetic joint surface of the first component 100 is the first sealing surface 110, and the hermetic joint surface of the second component 200 is the second sealing surface 210. A first oil storage groove 120 is provided on the first sealing surface 110, and a second oil storage groove 220 is provided on the second sealing surface 210. The cross-section of the oil storage groove is in a V-shaped structure, a U-shaped structure, or a W-shaped structure. That is to say, the cross-section of the first oil storage groove 120 is in a V-shaped structure, a U-shaped structure, or a W-shaped structure, and the cross-section of the second oil storage groove 220 is in a V-shaped structure, a U-shaped structure, or a W-shaped structure. The cross-sectional shape of the first oil storage groove 120 may be the same as or different from that of the second oil storage groove 220.
[0038] S2. Coat a waterproof oil 400 on the surface of the waterproof ring 300.
[0039] In this embodiment, the waterproof ring 300 is made of nitrile rubber or fluororubber to ensure that the waterproof ring 300 has sufficient elastic properties so that the waterproof ring 300 can deform when subjected to the combined 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 the hermetic isolation between the inner and outer sides of the area surrounded by the first component 100 and the second component 200. The cross-section of the waterproof ring 300 is in a circular structure, an oval structure, or a rectangular structure. Preferably, the cross-section of the waterproof ring 300 is in a rectangular structure to increase the contact area between the waterproof ring 300 and the first sealing surface 110 and the second sealing surface 210, so that after the waterproof ring 300 is installed, it squeezes the waterproof oil 400 to increase the width of the waterproof oil 400 between the first sealing surface 110 and the second sealing surface 210, thereby improving the waterproof effect.
[0040] The surface of the waterproof ring 300 is raised to form a convex portion embedded in the oil storage tank. Specifically, the surface of the waterproof ring 300 is raised to form a first convex portion embedded in the first oil storage tank 120, or / and a second convex portion 310 embedded in the second oil storage tank 220. The height of the first convex portion is less than the depth of the first oil storage tank 120, and the height of the second convex portion 310 is less than the depth of the second oil storage tank 220. The size of the first convex portion needs to be satisfied, and the first convex portion can be completely embedded in the first oil storage tank 120, so that the waterproof ring 300 abuts against the edge of the notch of the first oil storage tank 120 and fits with the first sealing surface 110, and when the first convex portion is embedded in the first oil storage tank 120, the end of the first convex portion does not contact the bottom surface of the groove of the first oil storage tank 120, so as to ensure that the first convex portion squeezes the waterproof oil 400 in the first oil storage tank 120. The size of the second protrusion 310 needs to be satisfied, and the second protrusion 310 can be completely embedded in the second oil storage tank 220, so that the waterproof ring 300 abuts against the edge of the groove of the second oil storage tank 220 and fits with the second sealing surface 210, and when the second protrusion 310 is embedded in the second oil storage tank 220, the end of the second protrusion 310 does not contact the bottom surface of the groove of the second oil storage tank 220, ensuring that the second protrusion 310 squeezes the waterproof oil 400 in the second oil storage tank 220. In this way, the waterproof ring 300 blocks the notch edge of the first oil storage tank 120 and the notch edge of the second oil storage tank 220, so that the waterproof oil 400 is confined in the first oil storage tank 120 and the second oil storage tank 220, and is jointly limited by the first protrusion and the inner wall of the first oil storage tank 120, and is jointly limited by the second protrusion 310 and the inner wall of the second oil storage tank 220. In this way, as the first protrusion and the second protrusion 310 are squeezed and deformed, the squeezing 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 the assembly process and then separated from the area between the first sealing surface 110 and the second sealing surface 210, avoiding the displacement of the waterproof ring 300, thereby reducing the difficulty of installing the waterproof ring 300 and ensuring the waterproof performance of the waterproof structure of the watch.
[0041] S3. Place the waterproof ring 300 coated with waterproof oil 400 between the two watch components to be sealed and joined, and squeeze the waterproof ring 300 through the two watch components to deform the waterproof ring 300 so as to partially squeeze it into the oil storage tank to form a waterproof structure.
[0042] Specifically, when the waterproof ring 300 is pressed into the space between two watch components to be hermetically joined, a part of the waterproof oil 400 on the waterproof ring 300 enters the oil storage groove. Under the action of the extrusion and sealing between the waterproof ring 300 and the edge of the oil storage groove opening, this part of the waterproof oil 400 always remains in the oil outlet groove. When the waterproof ring 300 deforms, the part of the waterproof ring 300 that is deformed and squeezed into the oil storage groove squeezes this part of the waterproof oil 400, increasing the pressure and surface tension of this part of the waterproof oil 400 to improve the waterproof effect of the watch. The waterproof oil 400 that does not enter the oil storage groove on the waterproof ring 300 is "thinned" under the combined extrusion of the waterproof ring 300 and the outer part of the oil storage groove, forming a thin oil film 500. Under the extrusion of the waterproof ring 300, the thickness of this part of the oil film 500 is relatively thin and the width is relatively wide, further enhancing the sealing and isolation effect on both sides of the two joined watch components and improving the waterproof performance of the watch.
[0043] In this embodiment, in step S3, the waterproof ring 300 coated with the waterproof oil 400 is embedded between the two assembled watch components; or the waterproof ring 300 coated with the waterproof oil 400 is placed on the sealing joint surface of one watch component, and then the other watch component is pressed on the waterproof ring 300 and the two watch components are fixed. That is to say, after the two watch components are assembled in advance and an installation groove 600 is reserved, the waterproof ring 300 coated with the waterproof oil 400 can be embedded in the installation groove 600, or the waterproof ring 300 can be first attached to the sealing joint surface of one watch component, and then the other watch component is fixed. By jointly squeezing the waterproof ring 300 by the two watch components, the assembly of the watch waterproof structure and the waterproof design of the watch are realized.
[0044] Implementing the watch waterproof structure, watch and watch waterproof method of the present invention, the first oil storage groove 120 and the second oil storage groove 220 are opened on the first component 100 and the second component 200 to be hermetically joined. The waterproof ring 300 undergoes elastic deformation under the action of the assembly pre-tightening force of the first component 100 and the second component 200, so that after the waterproof ring 300 deforms, a part of it is squeezed into the oil storage groove, further squeezing the waterproof oil 400 in the oil storage groove, increasing the pressure on the waterproof oil 400 and also increasing the surface tension of the waterproof oil 400, thereby improving the waterproof ability of the watch. It has low requirements for the assembly pre-tightening force of the watch components, is easy to assemble, has no restriction on the watch structure design, expands the diversity of the watch structure, and has a wider application scenario; when the watch comes into contact with oil solvents, the design of the first oil storage groove 120 and the second oil storage groove 220 can still ensure sufficient waterproof oil 400 and guarantee the waterproof ability of the watch.
[0045] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, 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, it should be considered as the scope described in this specification.
[0046] The above-described embodiments merely represent several implementation manners of the present invention. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the invention patent shall be subject to the appended claims.
Claims
1. A waterproof structure for a watch, characterized in that: It includes a first component and a second component to be sealed and joined, and a waterproof ring arranged between the first component and the second component, the first component has a first sealing surface that fits with the waterproof ring, the second component has a second sealing surface that fits with the waterproof ring, the first sealing surface is provided with a first oil storage tank, the second sealing surface is provided with a second oil storage tank, and the first oil storage tank and the second oil storage tank are filled with waterproof oil; the waterproof ring is deformed when under pressure and partially squeezed into the first oil storage tank and the second oil storage tank to be squeezed into contact with the waterproof oil; the first sealing surface at the edge of the notch of the first oil storage tank and the second sealing surface at the edge of the notch of the second oil storage tank are both provided with an oil film attached to the surface of the waterproof ring.
2. The waterproof structure of a watch according to claim 1, characterized in that: The cross section of the first oil storage tank is in a V-shaped structure, a U-shaped structure or a W-shaped structure, and the cross section of the second oil storage tank is in a V-shaped structure, a U-shaped structure or a W-shaped structure.
3. The waterproof structure of a watch according to claim 1, characterized in that: The cross-section of the waterproof ring is a circular structure, an elliptical structure or a rectangular structure; the surface of the waterproof ring is raised to form a first convex portion embedded in the first oil storage tank, and / or a second convex portion embedded in the second oil storage tank, the height of the first convex portion is less than the depth of the first oil storage tank, and the height of the second convex portion is less than the depth of the second oil storage tank.
4. The waterproof structure of a watch according to claim 3, characterized in that: The oil film is in a rectangular sheet structure or a wedge-shaped structure.
5. The waterproof structure of a watch according to claim 1, characterized in that: The first component is a watch case, and the second component is a front bezel or a back cover.
6. The waterproof structure of a watch according to claim 5, characterized in that: 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 surface 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 jointly form an installation groove, the waterproof ring is inserted into the installation groove and is squeezed into contact with the waterproof oil in the first oil storage tank and the second oil storage tank.
7. A watch, characterized in that: The watch waterproof structure comprises the waterproof structure of any one of claims 1 to 6.
8. A method for waterproofing a watch, characterized in that: The following steps are involved: S1, respectively opening oil storage grooves on the sealing joint surfaces of the two watch components to be sealed and joined; S2, apply waterproof oil on the surface of the waterproof ring; S3. Place the waterproof ring coated with waterproof oil between the two watch components to be sealed and joined, and squeeze the waterproof ring through the two watch components to deform the waterproof ring so that it is partially squeezed into the oil storage tank to form a waterproof structure.
9. The watch waterproofing method according to claim 8, characterized in that: In step S3, the waterproof ring coated with waterproof oil is embedded between the two assembled watch components; or the waterproof ring coated with waterproof oil is placed on the sealing joint surface of one watch component, and then the other watch component is pressed onto the waterproof ring and the two watch components are fixed.
10. The watch waterproofing method according to claim 8, characterized in that: The cross section of the oil storage tank is V-shaped, U-shaped or W-shaped, the cross section of the waterproof ring is circular, elliptical or rectangular, and the surface of the waterproof ring is raised to form a convex portion embedded in the oil storage tank.