Abstract: Disclosed are a scissor-type telescopic apparatus and an automatic food vending machine. The scissor-type telescopic apparatus includes a base seat; a bidirectional lead screw including a right-hand thread portion and a left-hand thread portion; two lead screw nuts respectively threaded with the right-hand thread portion and the left-hand thread portion of the bidirectional lead screw, so as to move relatively away or relatively close in response to that the bidirectional lead screw is rotated; a first telescopic unit including two first scissor arms, ends of the two first scissor arms away from the base seat are both provided with gears, and the two gears are meshed; and a telescopic apparatus head respectively hinged with the ends of the two first scissor arms away from the base seat.

Abstract: Disclosed are a device for storing and retrieving meals and an automatic meals vending machine. The device for storing and retrieving meals includes a meals storage shelf and a meals pickup assembly. A middle part of the meals storage shelf is provided with a meals pickup passage. The meals storage shelf is provided with a plurality of storage spaces evenly distributed along a circumferential direction and an axial direction. The plurality of storage spaces are provided at a periphery of the meals storage shelf, and the meals pickup passage is communicated with the storage spaces. The meals pickup assembly includes a meals storage piece provided in and vertically movable relative to the meals pickup passage and a meals pushing piece provided at a side of the storage spaces away from the meals pickup passage and telescopic relative to the meals storage shelf to push meals.

Abstract: Disclosed are a heating assembly and an automatic meals-selling machine. The heating assembly includes a vessel body, a cover body and a heating body, and the vessel body is provided with a space accommodating meals to be heated; the cover body is movably provided relative to the vessel body to cover or open the vessel body, and the cover body and the vessel body are configured to cover together to form a heating cavity; the heating body is provided at the vessel body and/or the cover body for achieving at least one of roasting heating, water-bath heating or steam heating; and one of the vessel body and the cover body is provided with a meals inlet to allow the meals pickup assembly put the meals into the one of the vessel body and the cover body via the meals inlet.

Abstract: The present disclosure provides asphalt modified red mud for porous pavement material and an application thereof. The porous asphalt pavement material includes asphalt, red mud and aggregate; the mass ratio of asphalt to red mud is 1:(0.10-0.15), the mass ratio of the total mass of asphalt and red mud to aggregate is (0.08-0.12):1. With regard to the asphalt modified with red mud for porous pavement material provided in the present disclosure, asphalt is modified with red mud, and aggregate is added to synergize with red mud so as to improve the purification properties and mechanical properties of the porous asphalt pavement material efficiently. In the embodiments of the present disclosure, the purification rate of suspended matter by the asphalt modified with red mud for porous pavement material reaches 54.9-58.6%, and the purification rate of heavy metals (iron and lead) reaches 34.3-46.1%.