90results about How to "Won't tip over" patented technology

The invention relates to a lunch box hand barrow, which comprises a base, side surrounding frames and lifting handles, wherein the lower ends of the side surrounding frames are respectively hinged with the base and can rotate around a hinging point of the base; a sliding chute and a sliding rod which are away from the hinging point are respectively arranged on the joints of the side surrounding frames and the base; under the limiting of the sliding chute, turning type anti-toppling and upright positioning structures of the left side surrounding frame and the right side surrounding frame are formed; due to the limiting of the sliding chute, a fastening and releasing structure of a cover buckle of a lunch box rail to a lunch box is formed; a button is directly formed on a top cover; a ]-shaped gap is formed between the button and a main body of the top cover, so that a structure for driving the button to move up and down is formed; a sliding hook and a clamping slot which are respectively arranged on the button and the top cover of the left surrounding frame form an automatic locking structure of the left side surrounding frame and the right side surrounding frame; and locking ends between the left side surrounding frame and the right side surrounding frame are separated under the pressing of the button, and the gravity centers of the left side surrounding frame and the right side surrounding frame are away from the hinging point of the base, so that automatic turning structures of the left side surrounding frame and the right side surrounding frame are formed. The lunch box hand barrow has the advantages of being convenient to use, easy to open and close and capable of saving opening and closing strength, preventing toppling of the lunch box.

The invention discloses a gas column structure for an anti-vibration sleeve. The structure consists of a gas column plate, two bendable connecting wires and two concave buffer walls, wherein the concave buffer wall is formed by a plurality of U-shaped structures which are spliced by virtue of parallel heat seal; short gas columns in the center of the U-shaped structures at two ends of the concave buffer wall are not inflated, so that the four corners of the gas column structure of the anti-vibration sleeve cannot be cracked when contacting with a sharp object, and objects with sharp ends or of irregular shapes can be accommodated; and when the plurality of gas columns of the gas column plate are subjected to parallel heat seal, the heat seal can be performed at will to generate gas columns of irregular shapes. Furthermore, a dark curtain can be additionally arranged so as to achieve the effect of shielding the accommodating space, and serve as a movable curtain to cover and protect the semi-opening accommodating space.

The invention discloses a swing trainer. The swing trainer comprises a base, a training plate and a limiting mechanism; the training plate is arranged above the base; the limiting mechanism is arranged between the base and the training plate; and the training plate is in rolling contact with the base. The inclination angle can be controlled in the training process, and tipping caused by the too large inclination angle is avoided.

The invention discloses a folding hydraulic power auto-swing fire nozzle, comprising a nozzle, a handle operating mechanism, an outlet bend pipe, a positioning locking mechanism, a inflow bend pipe, avertical shaft, a connecting rod base I, a connecting rod I, a butterfly bolt, a connecting rod II, a connecting rod base II, a sliding block locking mechanism, a sliding block, a round driving disc,a impeller, a driving shell, a cone gear I, a cone gear II, a chassis, a horizontal locking mechanism, a mother board, a stabilizer positioning mechanism and a stabilizer. The impeller is driven by press water to rotate, a pair of cone gears which are meshed with each other are driven by the impeller to pass a horizontal rotating to a vertical direction and the nozzle is driven to swing by a crank connecting link mechanism which is composed of the sliding block, the round driving disc, the connecting rod and the inflow bend pipe. The spraying with a certain of pitch angle and swing frequencycan be realized by the fire nozzle in a broad coverage area; the operation is flexible without human intervention; the folded floor area of the invention is small, thus applicable to storing and moving. The invention is especially suitable to the extinguishing situation in which people are difficult to approach and the fire nozzle needs strong mobility.