Double-stracture tube

Abstract

A double-structure tube includes an exterior, a pump member, which includes an external cylinder having a first discharge outlet at one end and the inner cylinder having a second discharge outlet at one end, wherein the external cylinder and the inner cylinder are connected to each other at their other ends, respectively, and wherein the inner cylinder is placed in the exterior and the external cylinder is exposed, and a built-in balloon, which is coupled to the inner cylinder for plugging the second discharge outlet, wherein the exterior and the pump member are separably connected to each other, and wherein the built-in balloon is placed in the exterior.

We claim: 
     
         1 . A double-structure tube, comprising:
 an exterior;   a pump member, which includes an external cylinder having a first discharge outlet at one end and the inner cylinder having a second discharge outlet at one end wherein the external cylinder and the inner cylinder are connected to each other at their other ends, respectively, wherein the inner cylinder is placed in the exterior and the external cylinder is exposed; and   a built-in balloon, which is coupled to the inner cylinder for plugging the second discharge outlet, wherein the exterior and the pump member are separably connected to each other and wherein the built-in balloon is placed in the exterior.   
     
     
         2 . A double-structure tube as claimed in  claim 1 , wherein the exterior and the pump member are thermally bonded, and wherein the exterior includes a dash line, which is formed adjacent to the thermal bonding area, for separating the exterior from the pump member. 
     
     
         3 . A double-structure tube as claimed in  claim 1 , wherein the shape of the built-in balloon being filled with contents is almost the same as that of the exterior. 
     
     
         4 . A double structure tube as claimed in  claim 2 , wherein the shape of the built-in balloon being filled with contents is almost the same as that of the exterior. 
     
     
         5 . A double-structure tube as claimed in  claim 1 , wherein the pump member includes a first screw thread on its periphery, and further comprising a cap having a second screw thread on its inner surface for coupling with the first screw thread. 
     
     
         6 . A double-structure tube as claimed in  claim 2 , wherein the pump member includes a t first screw thread on its periphery, and further comprising a cap having a second screw thread on its inner surface for coupling with the first screw thread. 
     
     
         7 . A double-structure tube as claimed in  claim 3 , wherein the pump member includes a cap having a second screw thread on its inner surface for coupling with the first screw thread. 
     
     
         8 . A double-structure tube as claimed in  claim 4 , wherein the pump member includes a first screw thread on its periphery, and further comprising a cap having a second screw thread on its inner surface for coupling with the first screw thread. 
     
     
         9 . A double-structure tube, comprising:
 an exterior having an engage member;   a pump member, which includes an external cylinder having a first discharge outlet at one end and the inner cylinder having a second discharge outlet at one end wherein the external cylinder and the inner cylinder are connected to each other at their other ends, respectively, and wherein the inner cylinder is placed in the exterior and the external cylinder is exposed;   a lid, which is formed with the pump member integrally, for covering the first discharge outlet; and   a built-in balloon, which is coupled to the pump material for plugging the second discharge outlet, the engaging member is detachably engaged with the pump member, and wherein, the built-in balloon is placed in the exterior.   
     
     
         10 . A double-structure tube as claimed in  claim 9 , wherein the pump member includes a first screw thread on its inner surface and where the engaging member includes a second thread on its periphery for coupling with the first screw thread. 
     
     
         11 . A double-structure tube claimed in  claim 9 , wherein the shape of the built-in balloon being filled with contents is almost the same as that of the exterior. 
     
     
         12 . A double-structure tube as claimed in  claim 10 , wherein the shape of the built-in balloon being filled with contents is almost the same as that of the exterior.