A rotary closed-valve vacuum suction device is mounted to a bottom of an object, and has a valve assembly, a sucker, and a valve part. The valve assembly has a top valve seat and a bottom valve seat mounted below the top valve seat. The sucker is mounted to a bottom of the valve assembly. The valve part is inserted through a valve hole of the sucker and the bottom valve seat, and is connected to the top valve seat. When one of the top valve seat and the bottom valve seat is rotated to change the relative position between the bottom valve seat and the top valve seat in a height direction of the valve assembly, the valve part switches the valve hole of the sucker between an open state and a closed state.

A rotary closed-valve vacuum suction device is mounted to a bottom of an object, and has a valve assembly, a sucker, and a valve part. The valve assembly has a top valve seat and a bottom valve seat mounted below the top valve seat. The sucker is mounted to a bottom of the valve assembly. The valve part is inserted through a valve hole of the sucker and the bottom valve seat, and is connected to the top valve seat. When one of the top valve seat and the bottom valve seat is rotated to change the relative position between the bottom valve seat and the top valve seat in a height direction of the valve assembly, the valve part switches the valve hole of the sucker between an open state and a closed state.

A securable plate for infants having a sidewall projecting a length of a perimeter edge engages removably with a support surface using a suction cup. An opening in the sidewall provides a passage to lift the edge of the suction cup to disengage the suctioned engagement of the suction cup by lifting the edge of the suction cup or a release flap extending from it.

A securable plate for infants having a sidewall projecting a length of a perimeter edge engages removably with a support surface using a suction cup. An opening in the sidewall provides a passage to lift the edge of the suction cup to disengage the suctioned engagement of the suction cup by lifting the edge of the suction cup or a release flap extending from it.

A set including self-adhesive mat and an object such a vessel, for example. The mat is formed at least partially from an elastically deformable material and on a bottom side has a smooth surface, and the object can be releasably fastened to a top side of the mat by a connection device. The connection device includes a receiving element and a connecting piece interacting therewith, which element and piece are in particular embodied such that they can be plugged into one another. To ensure a connection that is unable to be released by a small child, it is provided that the connection device is embodied to be lockable.

A set including self-adhesive mat and an object such a vessel, for example. The mat is formed at least partially from an elastically deformable material and on a bottom side has a smooth surface, and the object can be releasably fastened to a top side of the mat by a connection device. The connection device includes a receiving element and a connecting piece interacting therewith, which element and piece are in particular embodied such that they can be plugged into one another. To ensure a connection that is unable to be released by a small child, it is provided that the connection device is embodied to be lockable.

A collapsible food service assembly for facile stowing when not in use includes a tray, a set of articles of tableware, and a set of fasteners. Each fastener is engaged to at least one of an upper face of the tray and a respective article of tableware. The fastener is selectively engageable to at least one of the tray and an associated one of the set of articles of tableware. The set of fasteners is positioned to removably couple the set of articles of tableware to the tray.

A drop-proof and easy-to-detach double-layer bowl is provided, which belongs to the field of tableware, and includes an inner bowl. The inner-layer bowl is made of soft glue and the outside thereof is covered with an outer-layer shell. The opening end edge of the inner-layer bowl is bent outward and buckled on the outer-layer shell to fix the outer-layer shell on the inner-layer bowl, and soft glue is used to replace plastic. The food safety level of soft glue is higher than that of plastic, which overcomes the long-term unsafe problem of traditional plastic bowls. The outer layer structure is sleeved on the soft glue, so that the support performance of the soft glue bowl is enhanced to prevent the deformation of the soft glue from causing food in the bowl to spill, and the food safety level of the plastic bowl is improved.

A method for occupying a toddler may include providing a flexible mat; affixing the flexible mat to a vertical surface; providing an elongated tether; affixing the elongated tether to at least one of the vertical surface and the flexible mat; coupling an object to the elongated tether. In some embodiments, the elongated tether has an anchor end and a retention end. The retention end may have one or more retention apertures, each characterized by a retention-aperture diameter, and a retention terminus characterized by a retention diameter being greater than the retention-aperture diameter. Coupling an object to the elongated tether may include disposing the retention end around or through the object and disposing the retention terminus through one of the one or more retention apertures to form a compression fit.

A method for manufacturing a bowl and a glass bowl are disclosed. A high borosilicate glass bowl is manufactured with high borosilicate glass, which has characteristics of high hardness, high light transmittance, high chemical stability, cold and hot shock resistance, and the like. A radian of a bottom is measured by a laser scanner, so that an accurate molding die can be manufactured by a numerical control machine tool. A solid rubber compound is mixed by a mixing mill, and then a vulcanizing agent and a silica gel masterbatch are added to obtain a silicone rubber raw material. The silicone rubber raw material is taken out according to a preset weight, then put together with the high borosilicate glass bowl into a molding vulcanizer. Vulcanization compression molding is performed to obtain a high borosilicate glass bowl with an anti-slip silica gel bottom.