Waterproof mechanism

Abstract

A waterproof mechanism includes a seat body, a waterproof rubber ring and a board body. The seat body has a first receiving space and a second receiving space in communication therewith. The second receiving space is longer and wider than the first receiving space. A platform is formed at a junction between the first and second receiving spaces. An inclined sidewall extends from the platform to surround and define the second receiving space. The waterproof rubber ring is disposed in the second receiving space in tight abutment with the platform and formed with a perforation in communication with the first receiving space. The waterproof rubber ring has an inner periphery and an outer periphery. The inner periphery is formed with a connection channel for connecting with the board body. The outer periphery is formed with a protrusion section protruding from the outer periphery to the inclined sidewall in abutment therewith.

1 . A waterproof mechanism comprising:
 a board body;   a seat body having a first receiving space and a second receiving space in communication with the first receiving space, the second receiving space being longer and wider than the first receiving space, whereby a platform is formed at a junction between the first and second receiving spaces, an inclined sidewall extending from the platform to surround and define the second receiving space; and   a waterproof rubber ring disposed in the second receiving space in tight abutment with the platform, the waterproof rubber ring being formed with a perforation in communication with the first receiving space, the waterproof rubber ring having an inner periphery defining the perforation and an outer periphery leaned against the inclined sidewall, the inner periphery being formed with a connection channel for connecting with the board body, the outer periphery being formed with a protrusion section protruding from the outer periphery to the inclined sidewall in abutment therewith.   
     
     
         2 . The waterproof mechanism as claimed in  claim 1 , wherein the protrusion section has at least one first protrusion flange protruding from the outer 
     
     
         3 . The waterproof mechanism as claimed in  claim 2 , wherein the protrusion section has at least one second protrusion flange positioned below the first protrusion flange, the second protrusion section protruding from the outer periphery to the inclined sidewall, the second protrusion flange tightly abutting against the inclined sidewall as a second waterproof seal. 
     
     
         4 . The waterproof mechanism as claimed in  claim 3 , wherein the first protrusion flange protrudes from the outer periphery by a protrusion length and the second protrusion flange also protrudes from the outer periphery by a protrusion length, the protrusion length of the first protrusion flange being larger than or equal to the protrusion length of the second protrusion flange. 
     
     
         5 . The waterproof mechanism as claimed in  claim 1 , wherein a bottom section of the waterproof rubber ring tightly attaches to and abuts against the platform as a third waterproof seal. 
     
     
         6 . The waterproof mechanism as claimed in  claim 4 , wherein a bottom section of the waterproof rubber ring tightly attaches to and abuts against the platform as a third waterproof seal. 
     
     
         7 . The waterproof mechanism as claimed in  claim 1 , wherein the outer periphery has an inclination equal to an inclination of the inclined sidewall. 
     
     
         8 . The waterproof mechanism as claimed in  claim 1 , wherein the outer periphery has an inclination unequal to an inclination of the inclined sidewall. 
     
     
         9 . The waterproof mechanism as claimed in  claim 3 , wherein the first and second protrusion flanges are formed on the outer periphery in immediate adjacency to each other or at intervals. 
     
     
         10 . The waterproof mechanism as claimed in  claim 4 , wherein the first and second protrusion flanges are formed on the outer periphery in immediate adjacency to each other or at intervals. 
     
     
         11 . The waterproof mechanism as claimed in  claim 3 , wherein the first and second protrusion flanges have the configuration of a semicircle, a semi-ellipse or any other suitable geometric pattern. 
     
     
         12 . The waterproof mechanism as claimed in  claim 4 , wherein the first and second protrusion flanges have the configuration of a semicircle, a semi-ellipse or any other suitable geometric pattern. 
     
     
         13 . The waterproof mechanism as claimed in  claim 1 , wherein the platform is formed as a step section of the seat body.