Bugproof and odorproof sealing ring structure of a sinkhole screen

Abstract

A bugproof and odorproof sealing ring structure of a sinkhole screen, including a base seat, a diaphragm and a gum ring. The base is a ring body having a screen section formed with multiple perforations and holders. An upper end and a lower end of the base seat are respectively formed with a stepped flange and a stepped skirt. The diaphragm is a gum-made thin disc having chucking bosses inserted in the holders to connect the diaphragm under the base seat with outer circumference of the diaphragm tightly attaching to the stepped skirt of the base seat. The inner circumference of the gum ring is formed with a stepped annular groove adapted to the stepped flange of the base seat, whereby the gum ring can be snugly fitted around the stepped flange of the base seat. The sealing ring can be directly placed on a conventional sinkhole screen to achieve a bugproof and odorproof effect.

1 . A bugproof and odorproof sealing ring structure of a sinkhole screen, comprising: 
 a base seat which is a substantially ring-shaped body having a screen section, the screen section being formed with multiple perforations, a central portion and a circumferential portion of the screen section being respectively formed with holders, an upper end of the base seat being formed with a flange, a lower end of the base seat being formed with a skirt;    a diaphragm which is substantially a gum-made thin disc, the diaphragm having chucking bosses respectively corresponding to the holders of the base seat, the chucking bosses being inserted in the holders to connect the diaphragm with the base seat with outer circumference of the diaphragm tightly attaching to the skirt of the base seat; and    a gum ring which is substantially a ring body, an inner circumference of the gum ring being formed with an annular groove adapted to the flange of the base seat, whereby the gum ring can be snugly fitted around the flange of the base seat, the sealing ring being directly placed on a shoulder section of the sinkhole screen to achieve a bugproof and odorproof effect.    
   
   
       2 . The bugproof and odorproof sealing ring structure of the sinkhole screen as claimed in  claim 1 , wherein the holders of the base seat are formed with trumpet-shaped holes tapered from lower side to upper side.  
   
   
       3 . The bugproof and odorproof sealing ring structure of the sinkhole screen as claimed in  claim 1 , wherein a pinch button is disposed on a central chucking boss of the diaphragm.  
   
   
       4 . The bugproof and odorproof sealing ring structure of the sinkhole screen as claimed in  claim 2 , wherein a pinch button is disposed on a central chucking boss of the diaphragm.  
   
   
       5 . The bugproof and odorproof sealing ring structure of the sinkhole screen as claimed in  claim 3 , wherein a surface of the pinch button is formed with slipproof stripes.  
   
   
       6 . The bugproof and odorproof sealing ring structure of the sinkhole screen as claimed in  claim 1 , wherein an annular rib is formed along outer circumference of the diaphragm.  
   
   
       7 . The bugproof and odorproof sealing ring structure of the sinkhole screen as claimed in  claim 2 , wherein an annular rib is formed along outer circumference of the diaphragm.  
   
   
       8 . The bugproof and odorproof sealing ring structure of the sinkhole screen as claimed in  claim 3 , wherein an annular rib is formed along outer circumference of the diaphragm.  
   
   
       9 . The bugproof and odorproof sealing ring structure of the sinkhole screen as claimed in  claim 4 , wherein an annular rib is formed along outer circumference of the diaphragm.  
   
   
       10 . The bugproof and odorproof sealing ring structure of the sinkhole screen as claimed in  claim 1 , wherein a lift ring is disposed on the base seat.  
   
   
       11 . The bugproof and odorproof sealing ring structure of the sinkhole screen as claimed in  claim 2 , wherein a lift ring is disposed on the base seat.  
   
   
       12 . The bugproof and odorproof sealing ring structure of the sinkhole screen as claimed in  claim 6 , wherein a lift ring is disposed on the base seat.  
   
   
       13 . The bugproof and odorproof sealing ring structure of the sinkhole screen as claimed in  claim 7 , wherein a lift ring is disposed on the base seat.  
   
   
       14 . The bugproof and odorproof sealing ring structure of the sinkhole screen as claimed in  claim 1 , wherein the skirt of the base seat is a stepped skirt, whereby the outer circumference of the diaphragm can be snugly attach to the stepped skirt.  
   
   
       15 . The bugproof and odorproof sealing ring structure of the sinkhole screen as claimed in  claim 2 , wherein the skirt of the base seat is a stepped skirt, whereby the outer circumference of the diaphragm can be snugly attach to the stepped skirt.  
   
   
       16 . The bugproof and odorproof sealing ring structure of the sinkhole screen as claimed in  claim 3 , wherein the skirt of the base seat is a stepped skirt, whereby the outer circumference of the diaphragm can be snugly attach to the stepped skirt.  
   
   
       17 . The bugproof and odorproof sealing ring structure of the sinkhole screen as claimed in  claim 4 , wherein the skirt of the base seat is a stepped skirt, whereby the outer circumference of the diaphragm can be snugly attach to the stepped skirt.  
   
   
       18 . The bugproof and odorproof sealing ring structure of the sinkhole screen as claimed in  claim 6 , wherein the skirt of the base seat is a stepped skirt, whereby the outer circumference of the diaphragm can be snugly attach to the stepped skirt.  
   
   
       19 . The bugproof and odorproof sealing ring structure of the sinkhole screen as claimed in  claim 7 , wherein the skirt of the base seat is a stepped skirt, whereby the outer circumference of the diaphragm can be snugly attach to the stepped skirt.  
   
   
       20 . The bugproof and odorproof sealing ring structure of the sinkhole screen as claimed in  claim 10 , wherein the skirt of the base seat is a stepped skirt, whereby the outer circumference of the diaphragm can be snugly attach to the stepped skirt.  
   
   
       21 . The bugproof and odorproof sealing ring structure of the sinkhole screen as claimed in  claim 11 , wherein the skirt of the base seat is a stepped skirt, whereby the outer circumference of the diaphragm can be snugly attach to the stepped skirt.