Sealing ring, sealing method of watchcase assembly and watchcase assembly

Abstract

The invention provides a sealing ring, a sealing method of a watchcase assembly and a watchcase assembly. The sealing ring is simple in structure, no required to be provided with a mounting groove, and quick to install, and improves a sealing effect. The sealing ring comprises a sealing portion, an upper attaching film and a lower attaching film. The sealing portion is bonded to the upper and lower attaching films. The sealing portion comprises a sealing ring body, an inner elastic rubber ring and an outer elastic rubber ring. The sealing ring body is located between the inner elastic rubber ring and the outer elastic rubber ring and is bonded to the inner elastic rubber ring and the outer elastic rubber ring. The sealing ring of the invention has its sealing ring body located between theinner elastic rubber ring and the outer elastic rubber ring. A structural member matching the sealing ring body is not required to be provided with the mounting groove. Just by tearing off the upper and lower attaching films and pasting the sealing portion, the watchcase assembly can be sealed. The sealing ring solves the problem in the prior art that a sealing ring has a small wire diameter and alow ratio of a wire diameter to a radius and is difficult to install, and liable to deform and to drop out of the mounting groove.

Description

technical field [0001] The invention relates to a structural improvement of a sealing ring for a watch case assembly, a sealing method for a watch case assembly and a watch case assembly formed by the sealing method. Background technique [0002] A sealing ring needs to be set between the front case of the watch and the screen on the back side of the front case to seal and waterproof. In the prior art, it is usually necessary to open an installation groove on the front case to assemble the sealing ring. Therefore, the groove depth of the installation groove on the front shell needs to be smaller than the wire diameter of the sealing ring, or a boss needs to be made on the screen matched with the front shell to make the sealing ring compress. [0003] like figure 1 Shown is a partial view of a sealing structure between the watch front case 1 and the screen 2 in the prior art. An installation groove 3 is provided on the front case 1, and a sealing ring 4 is assembled in the i...

AI Technical Summary

Problems solved by technology

[0004] However, for the seal rings currently used on watches, the wire diameter d is usually very small (that is, the seal ring is very thin), usually only 0.2~0.8mm, and the semi-diameter R of the seal ring is relatively large relative to its wire diameter d. like image 3 As shown, the sealing ring is difficult to install during the assembly process, and it is easy to deform and fall out of the installation groove of the front case, or it is not easy to couple with the boss on the screen and the installation groove of the front case, causing the sealing ring to be squeezed and damaged, and the seal will fail

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