Transport container having a clamping disc

Abstract

A container for the transport and storage of liquids comprises at least one upwardly open socket at the top of an inner container. A clamping disk has an internal thread that can be screwed onto an external thread of the socket, thereby clamping a container top at the edge of its opening. A screw lock interacts with the external thread of the socket and the internal thread of the clamping disk and prevents unintentional loosening of the clamping disk and the socket.

1 . A container for the transport and the storage of liquids,
 with an inner container made of plastic for holding liquid,   an outer container made of plastic with a rigid lower bottom, a rigid shell and a rigid container top,   at least one upwardly open socket on the top of the inner container for filling and/or emptying the inner container, the socket being formed integrally with the inner container and having an external thread and an internal thread, and the container top including an opening which surrounds the socket with clearance,   a clamping disk with an internal thread, which can be screwed to the external thread of the socket, thereby clamping the container top at the edge of its opening,   a screw lock which cooperates with the external thread of the socket and the internal thread of the clamping disk and is suitable for preventing unintentional loosening of the clamping disk and the socket,   a tube receptacle supporting a dip tube and having an internal thread and an external thread which can be screwed into the internal thread of the socket,   and with a sealing plug with an external thread, which can be screwed into the internal thread of the tube receptacle and closes the latter in a liquid-tight manner.   
     
     
         2 . The container according to  claim 1 , characterized in that the screw lock comprises:
 at least one first detent element on the socket and at least one second detent element on the side of the clamping disk facing the socket,   wherein, when screwing the internal thread of the clamping disk onto the external thread of the socket, the first detent element and the second detent element are latched with one another to prevent loosening of the screw connection.   
     
     
         3 . The container according to  claim 2 , characterized in that the first detent element is formed integrally with the inner container. 
     
     
         4 . The container according to  claim 3 , characterized in that the first detent element is formed as a detent cam on the cylindrical shaft at the bottom of the external thread of the socket and the second detent element on the clamping disk is formed as a locking cam on the lower circumference of the internal thread of the clamping disk. 
     
     
         5 . The container according to  claim 1 , characterized in that at least the rigid container top is made of electrically conductive plastic. 
     
     
         6 . The container according to  claim 1 , characterized in that an electrically insulating sealing ring is arranged between the tube receptacle and the socket, and in that the tube receptacle, which is made of electrically conductive plastic, comprises an electrically conductive contact element which is electrically conductively connected to the clamping disk. 
     
     
         7 . The container according to  claim 6 , characterized in that an anti-rotation lock is provided which cooperates with the contact element, the tube receptacle and the clamping disk and is suitable for preventing relative rotation of the tube receptacle and the clamping disk. 
     
     
         8 . The container according to  claim 7 , characterized in that the contact element is configured as a contact lug which can be fixed on the upper side of the clamping disk by means of an electrically conductive fastening element. 
     
     
         9 . The container according to  claim 7 , characterized in that the anti-rotation lock comprises:
 first detent means on the contact element formed as a contact ring and   second detent means on the tube receptacle,   wherein, when the contact ring is clamped between the sealing plug and the tube receptacle, the first detent means and the second detent means are latched with one another to prevent rotation of the contact ring relative to the tube receptacle.   
     
     
         10 . The container according to  claim 9 , characterized in that the anti-rotation lock has a locking lug projecting radially from the contact ring, which locking lug can be fixed in the edge region of the clamping disk after the tube receptacle has been screwed to the socket in order to prevent relative rotation of the tube receptacle with respect to the clamping disk. 
     
     
         11 . The container according to  claim 9 , characterized in that the contact ring comprises radially outwardly directed contact arms on its circumference, the contact arms having third detent means that cooperate with fourth detent means on the clamping disk to prevent relative rotation of the tube receptacle with respect to the clamping disk. 
     
     
         12 . The container according to  claim 11 , characterized in that the third detent means on the contact arm have detent element that engage in gaps between outer detent cams of the fourth detent means on the clamping disk. 
     
     
         13 . The container according to  claim 1 , characterized in that the sealing plug is made of electrically conductive plastic.