Abstract: A structure of pallet for stacking pallets with wheels, each pallet has a stop barrier on the three sides of thereof, the remaining one side has a beveled surface tilting downward, two longitudinal grooves are provided on the two mutual opposite longitudinal sides of the pallet. A plurality of insertion holes are provided between the grooves. The pallet has thereunder a fixed wheel set and a movable wheel set, and has on the bottom thereof a plurality of engaging portions and engaging strips. When the pallets are stacked in a mutual orthogonal state, the engaging strips and engaging portions on the bottom of the upper pallet are respectively engaged in the insertion holes and longitudinal grooves on the lower pallet, so that the pallet structure has the function of direction correcting for positioning when in stacking of the pallets, and displacement and falling down of the pallets are surely prevented.

Abstract: An improved pallet structure having an upper pallet and a lower pallet. The upper pallet includes on its underside, a plurality of upper feet with a plurality of limiting members and slits. A plurality of upper channels are formed between every two neighboring upper feet. The upper channels include ribs with recesses in alignment with the slits of the upper feet. Rods are placed in the slits and the recesses and abut at their ends against the limiting members. The slits each allows for the engagement of an engaging member, to prevent the movement of the rods in any direction. Then the upper pallet is joined with the lower pallet. When yarn packages are loaded on the pallet, the center of gravity of the yarn packages is located directly above the rods in the pallet. The weight of the yarn packages is carried by the rods, and the pallet is not subjected to deformation and the life cycle of the pallet can be extended.

Abstract: The present utility relates a collapsible trailer which can be collapsed to a plane-shape when unused, and can be expanded to a basket-shape trailer with wheels and stick for conveying objects. The collapsible trailer comprises a bottom board, a primary wheel set on back side of the bottom board, a stick pivotally arranged on the trailer, a frame having two foldable boards pivoted on the bottom board and two lateral boards pivoted thereupon. The height of the lateral equals that of foldable boards in expanding state. When collapsing the trailer, the lateral boards are folded inward, and the foldable boards are folded such that the frame lies against the bottom board. The resulting configuration is fixed by a tenon provided on the trailer. Moreover, the stick is inverted to attach on the bottom board. Therefore, the trailer can be collapsed to a plane-shape. When the trail is to be used, the stick is drawn out and the tenon is unlocked.

Abstract: A pedal type dustbin structure, especially such a dustbin structure wherein a lid can be closed slowly to prevent the lid from emitting noise of collision during down closing thereof is disclosed. The dustbin is comprised of a receiving main body and an operating member, wherein, the receiving main body is comprised of a main frame, a top frame, an upper pulling door, a lower pulling door and two receiving bins. Further, the operating member is comprised of a lid, an operating rod, a cylindrical-member fixing-seat, an air-controlled member and a pedal. Wherein, the pedal can control up/down movement of the operating rod to lift and close the lid. The relative movement between the cylindrical-member fixing-seat and the air-controlled member makes slow down closing of the lid, so that noise of collision during down closing of the lid can be prevented. The dustbin is designed to have two receiving bins in the main frame, thus an object of classification of garbage can be obtained.

Abstract: A storage bin and a top lid are temporarily locked for sealing, the storage bin is provided on tops of two opposite sides thereof with several pivot seats, notches are provided each between every two of the pivot seats, the storage bin has several through holes and receiving grooves; the top lid is divided into two halves and is provided on one side of each half with pivot seats, the two halves are pivotably connected with the storage bin by means of axle holes provided on the aforesaid pivot seats and two axles, and have thereon several transverse limiting protrusions, longitudinal limiting protrusions and limiting blocks which together form a limiting area, one side of each half has protruding engaging portions and recessed engaging portions mutually alternately arranged, the protruding engaging portions each has on the bottom thereof an engaging groove, while the recessed engaging portions each has on the top thereof an engaging strip and an engaging block, several round holes on the top lid are exactly lo

Abstract: An improved structure of warning sign comprised of two warning plates, two pivot axles and several light reflexible sheets, wherein, the inner sides of two lateral edges on the top end of each warning plate each has a recess, a bevelled edge is provided above each recess, and two lateral engaging plates are provided under the two recesses of each warning plate, one of the lateral engaging plates of each warning plate has inside thereof a protruding engaging spot, and the other lateral engaging plate of the warning plate has inside thereof several arciform dents, each warning plate has on the inner side thereof two engaging plates with a wider spacing and two engaging plates with a narrower sparing, all the engaging plates each has a pivot hole, a square hole is provided between the engaging plates with wider spacings and the engaging plates with narrower spacings.

Abstract: A trestle stage comprises a plyboard and a plurality of supporting beams wherein the plyboard is provided with an embedding groove on each corner thereof and a through hole on the position of each embedding groove, and each supporting beam has embedding plates on both its ends to engage with the embedding grooves and embedding piece corresponding to the respective through hole, such that two plyboard can be kept with constant separation by the supporting beams therebetween and the inventory therein can be stored in layer-fashion without deformation.

Abstract: A structure of drawer type storage bin, includes a housing having four vertical rods positioned at the four corners thereof wherein the top end of each rod having a connection member with a tenon internally, a thin plate provided between every two connection members, a lid attached to the housing to form a half sealed cavity having an opening for receiving the drawer and having four slipping over portions positioned correspondently to those of the connection members to connect the latter, an engaging slot provided in each slipping over portion to engage a tenon, four peripheral clamping plates provided to form a clamping area with the peripheral edges of the lid to clamp the thin plates, the lid having at least a limiting plate which has near the said opening a limiting portion for limiting drawing of the drawer out of the housing. The structure is very firm after assembling and thus is practical.

Abstract: A support and drawer structure of a drawer type storage shelf injection molded from plastic and suitable for stacking many supports and drawers thereof in layers, wherein, vertical rods are provided at the four corners of the structure and each has a protruding with an engagement piece thereon, the bottom of each vertical rod has a slipping over engagement portion with a recess being fittedly slipped over a protruding of another support and firmly connected thereto by an engagement piece and a recess and not to be scattered by loosening when the stacked supports are tipped inadvertently. Two side plates are placed on the two sides of the support for covering a drawer with a receiving bin and a panel and inserted from the front side of the support, hence the drawer can be sealed to prevent insects from invading, in the drawer, an engaging combination structure can make easy assembling and prolonged life of use.