A fixing clamp (2) for discharge outlet of intermediate bulk containers is disclosed. The discharge outlet (1) comprises a flange edge (3), a discharge connecting port (5) and a discharge outlet clamping part (4). The discharge outlet clamping part (4) is a polygonal structure. The fixing clamp (2) comprises a fixing clamp body, a clamping portion (8), elastic guiding ribs (7) and anti-release portion (9). A passage for accommodating the discharge outlet clamping part (4) is formed in the middle part of the fixing clamp body. The clamping portion (8) is used for clamping the side surface of the discharge outlet clamping part (4) when the fixing clamp (2) and the discharge outlet (1) have been assembled. The elastic guiding ribs (7) will be squeezed by the side surface of the discharge outlet clamping part (4) to deform When the leading-in surfaces of the elastic guiding ribs (7) contact with the side surface of the discharge outlet clamping part (4). The elastic guiding ribs (7) restore elastically and the anti-release portion (9) are engaged with the side surface of the discharge outlet clamping part (4) to prevent the fixing clamp (2) from being separated front the discharge outlet (1) after the fixing clamp (2) and the discharge outlet (1) have been assembled. The fixing clamp (2) can be transversely pushed in to be assembled with the discharge outlet (1). The fixing clamp has low requirements for assembly accuracy, and is favorable for saving cost and increasing efficiency.

A fixing clamp (2) for discharge outlet of intermediate bulk containers is disclosed. The discharge outlet (1) comprises a flange edge (3), a discharge connecting port (5) and a discharge outlet clamping part (4). The discharge outlet clamping part (4) is a polygonal structure. The fixing clamp (2) comprises a fixing clamp body, a clamping portion (8), elastic guiding ribs (7) and anti-release portion (9). A passage for accommodating the discharge outlet clamping part (4) is formed in the middle part of the fixing clamp body. The clamping portion (8) is used for clamping the side surface of the discharge outlet clamping part (4) when the fixing clamp (2) and the discharge outlet (1) have been assembled. The elastic guiding ribs (7) will be squeezed by the side surface of the discharge outlet clamping part (4) to deform When the leading-in surfaces of the elastic guiding ribs (7) contact with the side surface of the discharge outlet clamping part (4). The elastic guiding ribs (7) restore elastically and the anti-release portion (9) are engaged with the side surface of the discharge outlet clamping part (4) to prevent the fixing clamp (2) from being separated front the discharge outlet (1) after the fixing clamp (2) and the discharge outlet (1) have been assembled. The fixing clamp (2) can be transversely pushed in to be assembled with the discharge outlet (1). The fixing clamp has low requirements for assembly accuracy, and is favorable for saving cost and increasing efficiency.

A sealed valve box assembly includes a valve box lid made of a rigid material, a valve box body made of a rigid material, and an annular sealing gasket made of a resilient compressible material. The valve box body has a central opening in which an annular void is created when the valve box lid is inserted therein with a circumferential row of spaced apart vertical protuberances on the valve box lid. The annular sealing gasket has a circumferential row of spaced apart vertical channels matching the circumferential row of spaced apart vertical protuberances such that the vertical channels on the annular sealing gasket interfit with the vertical protuberances on the valve box lid so as to provide an air-tight press-fitted sealed relationship between the valve box lid and valve box body.