57results about How to "Easy to fold and unfold" patented technology

The invention discloses a tent. The tent comprises a tent frame and a tent cloth. The tent frame comprises a center part and at least two tent bar sets. Each tent bar set comprises an upper tent bar, a middle tent bar and a lower tent bar. The first ends of the upper tent bars are pivoted to the center part, the second ends of the upper tent bars and the first ends of the middle tent bars are connected through first rotational joints, and the second ends of the middle tent bars and the first ends of the lower tent bars are connected through second rotational joints. The tent frame can be changed between an unfolded state and a folded state, in the moving process from the folded state to the unfolded state, the upper tent bars are rotated from top to bottom relative to the center part, turning of the middle tent bars relative to the upper tent bars is the same as turning of the upper tent bars relative to the center part, and turning of the lower tent bars relative to the middle tent bars is opposite to turning of the middle tent bars relative to the upper tent bars. The tent cloth is connected with the center part, the upper tent bars, the middle tent bars and the lower tent bars. The tent has the following advantages that the lower tent bars are folded downwards (inwards), bottom angles of the tent cloth are folded inwards, unfolding and folding are convenient, the structure is simple, and the cost is low.

The invention discloses a baby stroller. The baby stroller comprises a stroller frame. The stroller frame comprises a front support, a rear support, lower push rods, upper push rods, supporting rods,front connecting rods, rear connecting rods and a stand plate component. Two of the upper portion of the front support, the upper portion of the rear support and the lower portions of the lower push rods are connected in a rotating mode. The lower portions of the upper push rods and the upper portions of the lower push rods are connected in a rotating mode. The supporting rods are connected with the upper push rods and the rear support in a rotating mode. One end of each front connecting rod is connected with the front support in a rotating mode. One end of each rear connecting rod is connected with the other end of the corresponding front connecting rod in a rotating mode, the other ends of the rear connecting rods are connected with the rear support in a rotating mode, and the supportingrods are arranged on the rear connecting rods in a rotating and sliding mode. The stand plate component is arranged to be capable of sliding relative to the rear connecting rods. The baby stroller issimple in structure, and folding and spreading operation is convenient; and besides, the baby stroller is compact in structure, small in occupied space, easy to carry and store after being folded andfacilitates use of consumers.

The invention discloses a multifunctional triple-top assembled table tennis table comprising a table top and foot stands. The table top comprises a table top first sub-member, a table top second sub-member and a table top third sub-member. The multifunctional triple-top assembled table tennis table further comprises a four-link folding structure used for folding and unfolding the table top. The four-link folding structure comprises the foot stands and hinge units connected with each other. The foot stands include the first foot stands and the second foot stands which are connected through fixing bolts. The table top is connected with the foot stands through suckers. When the table top is unfolded, the table can serve for table tennis matches table tennis training and entertainment; when the table top is partially folded, the second foot stands are folded and disposed in the first foot stands, the table top first sub-member, the table top second sub-member and the table top third sub-member are stacked in order, and the table can serve as a calligraphy and painting table or a dining table.

A multifunctional guardrail device comprises a guardrail body and an auxiliary platform, wherein the guardrail body is of a frame structure and comprises a plurality of guardrail frames arranged parallelly, the auxiliary platform is of a frame structure and comprises a plurality of parallelly arranged platform frames, the guardrail frames correspond to the platform frames, one end of each platform frame is hinged to supporting seats respectively, and the other end of each platform frame is fixedly connected with connecting seats respectively. The side faces of the supporting seats are fixedly connected with a main platform and are provided with horizontally-extending supporting arms, the platform frames are respectively supported by the supporting arms when the auxiliary platform is located at a horizontal position, and the connecting seats are connected with the near ends of the guardrail frames respectively through connecting hinge pins. During unfolding, the area of the main platform can be increased to facilitate device maintenance and other operations performed by operators, and meanwhile safety protection can be provided for the operator. During folding, the area of the main platform can be decreased, and device peripheries are also effectively protected while integral device transportation is facilitated.

The invention relates to a multifunctional dining table. The multifunctional dining table comprises a main box body, a water trough, a water trough rack, a barbecue grill frame, a cooking bench board, an oil furnace and a storage box, wherein the main box body is in a cuboid shape, a cavity is formed inside the main box body, a box body support matched with the shape of the main box body is installed inside the main box body, the cooking bench board is installed on the box body support, the cooking bench board slides in and out of the main box body from the bottom of one side surface of the main box body, the water trough rack is installed on the box body support, the water trough rack slides in and out of the main box body from the top of the other side surface, opposite to the inlet-outlet side surface of the cooking bench board, of the main box body, the other two side surfaces of the main box body can be overturned to a horizontal state along the top of the main box body, the storage box, the oil furnace and the barbecue grill frame are arranged in the main box body side by side, the water trough is arranged on the water trough rack, four top corners of the bottom of the main box body are respectively provided with a foldable leg, and two side surfaces, from which the cooking bench board and the water trough rack slide in and out of the main box body, of the box body are respectively provided with a foldable stool. The multifunctional dining table has beneficial effects that the structure is simple and reasonable, convenience in retraction and folding can be realized, the occupied space is small, convenience in carrying can be realized, and the function is diversified.

The invention relates to a portable scooter. The portable scooter comprises a handle vertical rod, a handle cross rod, a handle, a brake, a frame, a flywheel, a transmission mechanism, a front wheel and a rear wheel, wherein the frame comprises a front frame, a lower frame, a front fork and a connecting piece; the two sides of the upper end of the front frame are provided with handle vertical rodshafts, and the front frame is connected with the handle vertical rod by virtue of the handle vertical rod shafts; the front frame is provided with a rear wheel containing groove, a front wheel containing groove and a forking end from top to bottom; the front end of the front fork is provided with a locking device, the rear part of the front fork is fixedly provided with a fork vertical pipe frame; the front fork is inserted into the inner side of the forked end of the front frame and is connected with the front frame by virtue of a front shaft; the connecting piece is connected with the front fork by virtue of the fork vertical pipe frame, is connected with the lower frame by virtue of a middle shaft and is provided with a handlebar inserting hole; the front wheel containing groove is arranged on the lower frame; the front wheel is connected with the front fork; and the rear wheel is connected with the lower frame by virtue of a rear shaft. According to the portable scooter, under the condition of adopting 8-inch wheels, the folded size is 50mm*20mm*8mm, the weight is light, the folding speed is high, and the ridding is convenient and safe.