Prime minister boat which is become independent we clear up and to have the air chamber

Abstract

Disclosed is a boat having a plurality of independent air chambers. At least two independent small tubes are included in one cover to form a porous tube body with a plurality of independent air chambers so that air is injected into and exhausted from the independent small tubes at the same time but air is independently lost from the independent small tubes when a puncture is formed therein. The boat is provided with a plurality of such porous tube bodies so as to be connected with each other in series or in parallel by means of a connection pipe having an air input/output control unit. This boat gives absolute safety against puncture or external damage, is constructed and dissembled within a short time, and also has a competitive force in terms of production costs in comparison to function and safety.

1 . A boat (A) with a plurality of air chambers, 
 wherein at least two independent small tubes ( 10 ) are included in one cover ( 50 ) to form a porous tube body ( 100 ) with a plurality of independent air chambers so that air is injected into and exhausted from the independent small tubes at the same time but air is independently lost from the independent small tubes when a puncture is formed therein, and    wherein the boat is provided with a plurality of such porous tube bodies ( 100 ) so as to be connected with each other in series in a front and rear direction or in parallel in a right and left direction by means of a connection pipe ( 200 ) having an air input/output control means ( 210 ).    
   
   
       2 . The boat with a plurality of air chambers according to  claim 1 , 
 wherein air adjusting valves ( 202 ) are provided to both sides of the connection pipe ( 200 ) so as to inject or exhaust air into/from the small tube ( 10 ) in connect with an injection hole ( 22   b ) of each small tube ( 10 ).    
   
   
       3 . The boat with a plurality of air chambers according to  claim 1 , 
 wherein a plurality of the small tubes ( 10 ) composing the porous tube body ( 100 ) are connected to the connection pipe ( 200 ) so that a tube joint ( 20 ) with an insert hole ( 21 ) and a pressing projection ( 22 ) keeps a fitting state thereof.    
   
   
       4 . The boat with a plurality of air chambers according to  claim 3 , 
 wherein a fine unevenness ( 21   a ) is formed in the insert hole ( 21 ) of the tube joint ( 20 ), and the pressing projection ( 22 ) having an air injection hole ( 22   b ) and an unevenness ( 22   a ) corresponding to the unevenness ( 21   a ) is fitted into the insert hole ( 21 ).    
   
   
       5 . The boat with a plurality of air chambers according to  claim 1 , 
 wherein the air input/output control means ( 210 ) installed in the connection pipe ( 200 ) is a blocking tube body ( 220 ) having an air valve ( 221 ) on an outside thereof.    
   
   
       6 . The boat with a plurality of air chambers according to  claim 1 , 
 wherein the air input/output control means ( 210 ) installed in the connection pipe ( 200 ) symmetrically has air blocking plates ( 233 ) with a plurality of sealing protrusions at both sides thereof so that the air blocking plates ( 233 ) are slid right or left within a predetermined range by means of a power transmission means ( 232 ), using any of a screw, a gear and a cam, operated by operation of an air shielding control lever ( 231 ) formed on an outside of the connection pipe, so as to open or close injection holes ( 22   b ) of the small tubes ( 10 ) formed on both sides of the connection pipe ( 200 ).    
   
   
       7 . The boat with a plurality of air chambers according to  claim 1 , 
 wherein a plurality of cover hooks ( 250 ) are formed on outer circumferences of both sides of the connection pipe ( 200 ) at regular intervals, and a plurality of hooking grooves ( 51 ) are formed on an inside end of the cover ( 50 ) corresponding to the cover hooks ( 250 ) at regular intervals by means of sewing so that the cover hooks ( 250 ) and the hooking grooves ( 51 ) are detachably combined with each other.    
   
   
       8 . The boat with a plurality of air chambers according to  claim 1 , 
 wherein a finishing joint ( 260 ) with a pressing groove ( 261 ) is inserted into an end of the small tube ( 10 ) opposite to a point connected to the connection pipe ( 200 ), and the small tube ( 10 ) is partially folded and then inserted into the pressing groove ( 261 ) of the finishing joint ( 260 ), and then a sealing pressing part ( 270 ) with an unevenness ( 271 ) on an outside thereof fits and presses the small tube ( 10 ).    
   
   
       9 . The boat with a plurality of air chambers according to  claim 1 , 
 wherein there is provided a porous finishing plate ( 300 ) having a cover hook ( 250 ) formed at an end thereof opposite to the porous tube bodies ( 100 ) installed to both sides of the connection pipe ( 200 ).    
   
   
       10 . The boat with a plurality of air chambers according to any of  claims 1  to  9 , 
 wherein connection means ( 400 ) are additionally formed to right, left, front and rear of the cover ( 50 ), both sides of the connection pipe ( 200 ) and front and rear of the porous finishing plate ( 300 ) so that the porous tube bodies ( 100 ) are connectable in series in a front and rear direction or in parallel in a right and rear direction.    
   
   
       11 . The boat with a plurality of air chambers according to  claim 1 , 
 wherein a safety valve ( 410 ) for preventing air from being injected beyond a required level and an air pressure gauge ( 420 ) for checking air pressure injected in are additionally installed to predetermined portions of the connection pipe ( 200 ), respectively.