33results about How to "Broken in time" patented technology

The invention discloses a fire-fighting door device. The fire-fighting door device comprises a door plate and a door frame arranged in the circumferential direction of the door plate, the outer side of the door frame is arranged in a pre-arranged installation door hole on a wall in a matched mode, and one side of the door plate is hinged to the side wall of the door frame. A rotating shaft is arranged at the position, near the door plate, in the top cavity of the door frame in the width direction of the door frame, a reset spring and an mounting cylinder sleeve the rotating shaft in sequence,one end of the reset spring is connected with the rotating shaft, and the other end of the reset spring is connected with the mounting cylinder. A fire-proof screen is arranged on the outside of the mounting cylinder in a rolling mode, an iron block is arranged at the end part of the outermost layer of the fire-proof screen, and a passageway for the iron block to pass through is arranged at the top of the door frame. An electromagnetic coil is arranged in the top cavity of the door frame, and the electromagnetic coil is electrically connected with preset uninterruptible power supply in the wall. According to the fire-proof door structure, the fire-proof screen is additionally arranged on the outside of the door plate, and the transfer of fire can be blocked for a longer time.

The invention relates to improvement of a tempered glass breaking device. The tempered glass breaking device comprises a base relatively fixed with tempered glass to be broken, a breaking column used for exerting static pressure on a breaking face of the tempered glass is arranged on the base, the end, close to the tempered glass, of the breaking column is a working end, and a mechanical drive mechanism driving the breaking column to exert static pressure on the breaking face of the tempered glass is further arranged on the base. The mechanical structure is adopted, static pressure is used for quickly breaking the tempered glass, and strength for operating the device is little; in addition, the device and the tempered glass before breaking are relatively fixed, and the tempered glass can not be easily stolen.

The invention discloses a nuclear radiation resistant self-healing concrete containment vessel. The containment vessel body is composed of a first steel deck, a first structural adhesive layer, a first compound fabric layer, a leaded steel capsule concrete layer, a second compound fabric layer, a second structural adhesive layer and a second steel deck successively from inside out, wherein the leaded steel capsule concrete layer is prepared by mixing concrete and leaded steel capsules. The product can effectively absorb rays so as to raise radiation resistance of the containment vessel. In addition, leakage of radioactive substances can be prevented, and strength and toughness of the product are also enhanced so as to further raise anti-seismic property.

The invention discloses a soil loosener. The soil loosener includes a steel fork and a support hinged to the steel fork through bolts, the support comprises a C-shaped framework, two free ends of the C-shaped framework smoothly extend upwards to form two columns, and a cross bar is fixedly connected between the free ends of the columns; the middle of one side, away from the columns, of the C-shaped framework is fixedly connected with a U-shaped framework, two second hinge plates are fixedly connected above the junction between the U-shaped framework and the C-shaped framework, second hinge holes are formed beside the end portions of the second hinge plates, and eight longitudinal rods are evenly arranged between the cross bar and the C-shaped framework and distributed with fork tips at intervals. Compared with the prior art, the soil loosener has the advantages of being simple in structure, convenient to operate and high in efficiency, improving structures of traditional steel forks, and not only decreasing strength for inserting the loosener into the ground, but timely crashing soil.

The invention provides a non-rim rock wool processing cutting technology, which is characterized in that the two ends of a cutting knife adopted in the processing technology are double blades; and when cutting is carried out, the double blades directly break the scrap into powder. The scrap produced in the processing is treated in time, the operation is simple and the manpower and the material resources are saved.

The invention relates to compost pretreatment equipment, in particular to rubbish high-temperature compost pretreatment equipment for city environmental protection. According to the technical aims, the rubbish high-temperature compost pretreatment equipment for city environmental protection is high in rubbish pretreatment efficiency, high in rubbish pretreatment degree and good in stage treatmenteffect. In order to achieve the above technical aims, the rubbish high-temperature compost pretreatment equipment for city environmental protection comprises a collecting box, a smashing groove, a motor, a smashing tooth barrel, a second sliding block, a clamping plate, a first rotating shaft, a cutting groove, a groove cover, a second sliding rail, a baffle and the like; and the smashing groove is installed at the upper portion of the collecting box, the cutting groove is installed at the upper portion of the smashing groove, and a soaking groove is installed at the upper portion of the cutting groove. The rubbish high-temperature compost pretreatment equipment achieves the effects that the rubbish pretreatment efficiency is high and the rubbish pretreatment degree is high, the follow-uprubbish composting is facilitated, and the composting effect is better.

The invention discloses a mechanical excavation and rapid construction method for an urban hard rock tunnel. The mechanical excavation and rapid construction method comprises the steps that accordingto the cross section shape of a tunnel, a multi-hole combined water-milling drilling machine is adopted for drilling and coring along the tunnel excavation contour line periphery so as to form a peripheral continuous free face of a tunnel contour line; the multi-hole combined water-milling drilling machine is continuously adopted for face drilling and coring in the sequence from periphery to center so as to make residual rock bodies in the tunnel face in shapes of sifters or multiple islets; an impact hammer device is adopted to impact and break the residual rock bodies in the tunnel face; anexcavating-shoveling work head is adopted to conduct mechanical residue removal and output on broken scattered rock blocks and rock residues. Preferably, the multi-hole combined water-milling drillingmachine and the impact hammer device are integrated on the same self-walking device. The mechanical excavation and rapid construction method has the advantages of achieving multi-hole drilling and coring, hydraulic impact and crushing and mechanical residue removal and output through the combined self-walking device, being high in mechanical degree, high in tunneling speed, high in tunneling efficiency and low in safety risk and needing few construction operators.