Abstract: A child automobile safety seat includes a seat body having a sitting space, and a restraint system. The seat body includes a seat and a backrest. The restraint system includes restraint pieces and a protective piece. Two sets of restraint pieces are respectively arranged on the left side and the right side of the backrest. The protective piece is movably arranged at the front part of the seat, and is provided with a protective surface which faces the sitting space. When the restraint system is in a restraint state, the two sets of restraint pieces are respectively matched with and connected to the protective piece. When the restraint system is in an open state, the two sets of restraint pieces are respectively separated from the protective piece.

Abstract: A child safety seat is provided including a seat body and a connector connected to the seat body for connecting to a vehicle seat, the safety seat has a forward usage state and a reverse usage state, the connector is movably arranged on the seat body, and the connector can further protrude forward or rearward relative to the seat body to connect to the vehicle seat, and the relative movement between the seat body and the connector enables the child safety seat to switch between the forward usage state and the reverse usage state for installation. The child safety seat of the present disclosure can be switched between the forward usage state and the reverse usage state only by rotating the connector relative to the seat body and then installed in the forward or reverse direction, which is convenient to operate.

Abstract: Disclosed are methods of sintering metal nanoparticles and methods of making conductive metal films.

Abstract: The present invention provides a heat transfer-based width adjustment method for a continuous casting mold. A boundary condition of a horizontal acceleration velocity ? used in heat transfer-based width adjustment of a continuous casting mold is set to a minimum value subject to constraints of a maximum air gap and shell strength. The present invention can constrain a maximum air gap between a copper plate of a narrow mold wall and a casting billet in a heat transfer-based width adjustment process for a continuous casting mold, thereby ensuring sufficient contact between the copper plate of the narrow mold wall and the casting billet, so as to prevent cracks and other defects of the casting billet due to excessive thermal resistance of the air gap, insufficient corner cooling of the casting billet, delayed solidification and concentrated thermal deformation stress.

Abstract: The present invention provides a heat transfer-based width adjustment method for a continuous casting mold. A boundary condition of a horizontal acceleration velocity ? used in heat transfer-based width adjustment of a continuous casting mold is set to a minimum value subject to constraints of a maximum air gap and shell strength. The present invention can constrain a maximum air gap between a copper plate of a narrow mold wall and a casting billet in a heat transfer-based width adjustment process for a continuous casting mold, thereby ensuring sufficient contact between the copper plate of the narrow mold wall and the casting billet, so as to prevent cracks and other defects of the casting billet due to excessive thermal resistance of the air gap, insufficient corner cooling of the casting billet, delayed solidification and concentrated thermal deformation stress.

Abstract: The present disclosure relates to a double stroller, with a frame thereof including three side supports and two transverse supports. Each two adjacent side supports are connected to each other via one transverse support. Each transverse support includes at least one connecting rod assembly, and each connecting rod assembly includes an outer connecting rod fixedly connected with the side support on a left or right side and an inner connecting rod fixedly connected with the side support in the middle. The outer connecting rod is connected to the inner connecting rod in a horizontally rotatable manner. The outer connecting rods and inner connecting rods connected in a horizontally rotatable manner to enable the side supports on two sides to close together as the outer connecting, rods are turned transversely and folded, and thus, after being folded, the space occupied by the double stroller in the left-right direction is lessened.

Abstract: The present disclosure relates to a double stroller, with a frame thereof including three side supports and two transverse supports. Each two adjacent side supports are connected to each other via one transverse support. Each transverse support includes at least one connecting rod assembly, and each connecting rod assembly includes an outer connecting rod fixedly connected with the side support on a left or right side and an inner connecting rod fixedly connected with the side support in the middle. The outer connecting rod is connected to the inner connecting rod in a horizontally rotatable manner. The outer connecting rods and inner connecting rods connected in a horizontally rotatable manner to enable the side supports on two sides to close together as the outer connecting, rods are turned transversely and folded, and thus, after being folded, the space occupied by the double stroller in the left-right direction is lessened.

Abstract: Disclosed is a game enclosure comprising an enclosure frame, a child support assembly and a cloth cover. The enclosure frame comprises an upper frame, a bottom support rack and a plurality of upright rods arranged between the upper frame and the bottom support rack. The child support assembly comprises a cloth bag frame and a cloth bag. The cloth bag frame comprises two cross braces respectively placed on the front side and the rear side, two connecting rod assemblies respectively placed on the left side and the right side, and locking mechanisms. Each connecting rod assembly comprises two connecting rods, the inner ends of the two connecting rods are connected in a relatively rotatable manner, and the outer ends of the two connecting rods are respectively connected to the two cross braces in a rotatable manner.

Abstract: Disclosed is a game enclosure comprising an enclosure frame, a child support assembly and a cloth cover. The enclosure frame comprises an upper frame, a bottom support rack and a plurality of upright rods arranged between the upper frame and the bottom support rack. The child support assembly comprises a cloth bag frame and a cloth bag. The cloth bag frame comprises two cross braces respectively placed on the front side and the rear side, two connecting rod assemblies respectively placed on the left side and the right side, and locking mechanisms. Each connecting rod assembly comprises two connecting rods, the inner ends of the two connecting rods are connected in a relatively rotatable manner, and the outer ends of the two connecting rods are respectively connected to the two cross braces in a rotatable manner.

Abstract: A baby carriage is provided in the invention, the frame of the baby carriage comprises a left support frame and a right support frame symmetrical to each other, and a connecting frame connected between the left and right support frames. The left support frame comprises a left front frame, a left rear frame, a left rod, a left connecting rod with a front portion being rotatably connected with the left front frame, a left pull rod rotatably connected with the left rear frame and a left push rod frame rotatably connected with the upper portion of the left rod. The left pull rod is rotatably connected with the rear portion of the left connecting rod and the lower portion of the left push rod frame is rotatably connected with the upper portion of the left pull rod.

Abstract: A baby carriage is provided in the invention, the frame of the baby carriage comprises a left support frame and a right support frame symmetrical to each other, and a connecting frame connected between the left and right support frames. The left support frame comprises a left front frame, a left rear frame, a left rod, a left connecting rod with a front portion being rotatably connected with the left front frame, a left pull rod rotatably connected with the left rear frame and a left push rod frame rotatably connected with the upper portion of the left rod. The left pull rod is rotatably connected with the rear portion of the left connecting rod and the lower portion of the left push rod frame is rotatably connected with the upper portion of the left pull rod.