31results about How to "Guaranteed design strength" patented technology

The invention discloses C70 mass concrete. The C70 mass concrete is prepared from the following components by mass: 140 to 170 parts of water, 400 to 450 parts of cement, 1,000 to 1,200 parts of crushed stone, 550 to 650 parts of gravel, 70 to 110 parts of coal ash, 60 to 90 parts of mineral powder, 30 to 70 parts of silica fume, 8 to 10 parts of a pumping agent, 35 to 45 parts of an anti-crackingagent, and 0.3 to 0.4 part of an internal curing agent. The invention also discloses a preparation method for the C70 mass concrete. The method comprises a first step of uniformly mixing sand, graveland water and a second step of adding other components and carrying out uniform mixing under stirring. According to the composition of the mass concrete in the invention, mineral powder, silica fumeand fly ash are used as mineral admixtures and can delay the release rate of cement hydration heat and reduce the shrinkage and deformation of the concrete, and the mineral admixtures acts synergistically with the other components to inhibit the generation of cracks at the same time; and the preparation method of the invention is simple in process and easy to implement.

The invention relates to a vegetation-growing concrete which is produced by stirring with water, concrete, coarse aggregate and addition agents in the proportion of 1:2.8-3.3:12-18:0.01-0.03, the gauge number of the concrete is more than 425 #, and the grain size of the coarse aggregate is between 2cm to 4cm. Using the new proportioning of concrete composition materials and the new construction method to produce the big pore in the concrete, meanwhile, neutralizing the strong alkalinity of the concrete by the addition agents and using the exclusive seeds of plants to make sure the plants growing in the concrete or across the concrete.

The invention provides an electronic device, an antenna and a method for forming the antenna. The electronic device comprises a shell, a signal transceiver and the antenna, wherein the shell comprises a conductor zone manufactured by a conducting material; the antenna comprises an irradiation part and a coupling and matching part; the irradiation part is formed by utilizing the conductor zone and is used for irradiating and receiving signals; the coupling and matching part is coupled to the irradiation part, is connected to the signal transceiver and is used for feeding signals between the irradiation part and the signal transceiver and exciting the irradiation part to irradiate and receive the signals in specified frequency bandwidth. In each technical scheme of the embodiment, the antenna has a good antenna performance while the appearance design and the structure strength of the electronic device are ensured.

A supporting structure for a low temperature thermal insulation air bottle between the inner container and the outside housing of the said air bottle, comprises a supporting pipe that sticks to the No.1 end of the inner sealer of the said inner container, a pipe cover that is located at the inner side of the inner sealer and fastens the No.1 end of the said supporting pipe to the inside of the said inner sealer, a support bracket that is set at the inside of the outside sealer of the said outside housing with inserting holes on it, with the No.2 end of the said supporting pipe inserted into the inserting holes of the said support bracket. The invention can not only improves the supporting strength but also reduce the transmission of heat.

The invention discloses an injection mold for automobile trims. The ejection mechanism of the injection mold comprises an ejection cylinder, an ejector pin fixing plate, an ejector pin base plate, a plurality of oblique ejector pins, a plurality of straight ejector pins and a plurality of accelerated ejection units, wherein each accelerated ejection unit comprises an accelerated ejector pin and adriving mechanism; the accelerated ejector pins are vertically mounted on the ejector pin fixing plate; each oblique ejector pin, each straight ejector pin and each accelerated ejector pin are arranged to simultaneously pass through the ejector pin fixing plate, a movable mold plate and a movable mole core, respectively; the top ends of each oblique ejector pin, each straight ejector pin and eachaccelerated ejector pin separately face a mold cavity; the top end of each oblique ejector pin faces a buckle on the mold cavity; one accelerated ejector pin is arranged beside each oblique ejector pin; and the driving mechanisms are mounted on the ejector pin fixing plate to drive the accelerated ejector pins to move up and down. Since a injection-molded part is ejected out through cooperation among the accelerated ejection units, the oblique ejector pins and the straight ejector pins, the design strength of the inclined ejector pins can be ensured, the smooth release of the injection-moldedpart can be ensured, the injection-molded part can be easily taken out, and production efficiency is improved.

The invention provides a light-weight side wall structure and a railway vehicle. The light-weight side wall structure comprises an upper profile, a middle profile and a lower profile, wherein the upper section bar is arranged close to the roof; the middle section bar is connected to the lower part of the upper section bar and is connected with the upper section bar in an inserting and welding manner; the lower section bar is connected to the lower part of the middle section bar and is connected with the middle section bar in an inserting and welding manner; the thickness of the inner wall plate on the side, adjacent to the automobile door, of the upper profile is larger than that of the inner wall plate on the side away from the automobile door. According to the lightweight side wall structure provided by the invention, the whole side wall is arranged in a form of combining the upper section bar, the middle section bar and the lower section bar; therefore, the rigidity and the strength of the area which needs to be set to be high-strength above the automobile door are improved by increasing the thickness of the inner side plate, close to the automobile door part, of the upper sectional material, whereas for other parts, the thickness of the plate is smaller. On the premise that the strength of the vehicle body is guaranteed, the weight of the vehicle body is reduced conveniently, and light-weight design can be achieved easily.

The invention discloses a scroll compressor with a novel exhaust port structure and an exhaust valve component. The scroll compressor comprises a shell, an air inlet pipe, an air outlet pipe, a motor, a rotor shaft component and a scroll plate component, wherein an exhaust port is formed in the scroll plate component; a groove is formed in the upper surface of the scroll plate component positioned at the periphery of the exhaust port; the groove is formed towards the bottom of the exhaust port; a valve plate which covers the exhaust port and is in a long strip type is laid in the groove; one end of the valve plate is fixedly connected with the upper surface of the scroll plate component; a limiting plate with an arc-shaped lower surface is arranged on the valve plate; and when the exhaust port starts and stops exhausting air, the other end of the valve plate swings up and down between the upper surface of the scroll plate component and the arc-shaped lower surface. According to the scroll compressor, the exhaust port structure and the exhaust valve component are optimized, and the clearance volume is reduced to the greatest degree, so that at high compression ratio, the operating efficiency of the compressor is improved, the shutdown response speed of the compressor is increased, and the manufacturing cost and the using cost are reduced.

The invention relates to the field of building construction, in particular to a mega column anchor bolt construction method, mainly including: pre-assembling anchor bolts via a support, grouping according to field conditions, transporting in bulk to a mounting site, measuring, assembling in a whole, performing position correction on the anchor bolts via a positioning socket plate so as to completemega column anchor bolt construction. Therefore, the problem with mounting construction and positioning adjusting process of mega column anchor bolts is solved.

The invention relates to a bearing structure which comprises a bearing main body, a signal processor, a signal emitter and a power supply. The bearing main body comprises a bearing inner ring and a bearing outer ring, and the bearing inner ring and the bearing outer ring are relatively rotatably assembled through a bearing retainer; at least one sensitive coating is formed on at least one part area of at least one side wall of the bearing outer ring; a sensitive groove is formed in the sensitive coating, and the sensitive groove is configured for generating corresponding resistance change with temperature change, and the signal processor is arranged on the bearing outer ring; the signal processor is electrically connected with the sensitive groove, and the signal transmitter is arranged on the bearing outer ring; and the signal transmitter is electrically connected with the signal processor, and the power supply is arranged on the bearing outer ring. According to the bearing structure, the sensitive coating capable of acquiring temperature information in real time is integrated on the outer ring of the bearing, the working state of the bearing structure can be monitored in situ at a short distance, the real measured value of the bearing is acquired, and the loss caused by signal transmission is reduced.

The invention relates to the technical field of cast-in-place concrete pile body defect detection, in particular to a cast-in-place pile integrity optical fiber ultrasonic detection device and a detection method thereof. An ultrasonic transmitting unit comprises at least one sounding pipe, an ultrasonic transmitting transducer and a controller; the data acquisition unit comprises a sensing optical cable and a distributed sound wave sensing demodulator; the data analysis unit comprises a cast-in-place pile integrity evaluation module; the sensing optical cable is wound on a reinforcement cage, the sounding pipe is fixed to one side of the reinforcement cage, the ultrasonic transmitting transducer is arranged in the sounding pipe in a liftable mode and electrically connected to the controller, and the sensing optical cable is electrically connected to the cast-in-place pile integrity evaluation module through the distributed sound wave sensing demodulator. The defect that a traditional sensor is not prone to survive in the cast-in-place concrete pile is overcome, and the detection cost is reduced.

The invention relates to the field of building decoration, in particular to a decorative moulding, a closing component and a decorative moulding assembly formed by the decorative moulding and the closing component. The decorative moulding comprises at least one panel. At least two first reinforcing ribs are arranged at one side of each panel. Buckles are arranged on the opposite face of every two adjacent first reinforcing ribs. The closing component comprises a closing component body which is a panel with the hollow center. At least two locking arms are arranged at one side of the closing component body oppositely. The distance between every two locking arms corresponds to the distance between every two adjacent first reinforcing ribs. A buckle head is arranged at one end, away from the closing component body, of each locking arm. The buckle heads and the buckles are mutually matched and locked closely. In this way, it can be ensured that terminals such as a circuit inserting board and a switch can be installed on the decorative moulding fast. Attractiveness of the decorative moulding can be ensured to the maximum, and the decorative moulding can be connected or disassembled fast.