40 results about "Guardrail height" patented technology

The invention discloses a height-adjustable crane guardrail which comprise a pillar fixed to a bottom plate, wherein a fixing guardrail part is arranged at the upper end of the pillar, and is in a rectangular frame structure; sliding rails are arranged at the left and right inner walls of the fixing guardrail part; sliding blocks are arranged on the sliding rails; a cross rod is arranged between the sliding blocks; a plurality of stop rods arranged in a spaced manner are fixed at the upper end of the cross rod; the stop rods penetrate through the upper end of the fixing guardrail part and is connected with a lifting rod at the upper end of the fixing guardrail part; a plurality of rectangular grooves are uniformly formed in the two stop rods positioned at the outer sides; dead locking devices matched with the rectangular grooves are arranged at the upper end of the fixing guardrail part; and a plurality of auxiliary stop rods are arranged at the lower end of the cross rod, and penetrate through the lower end of the fixing guardrail part to extend into grooves of the pillar. The height-adjustable crane guardrail is simple in structure, reasonable in design and convenient to use; the height of the height-adjustable crane guardrail can be adjusted freely; the requirement on the protection height is met; the safe fixing function is exerted; and the height-adjustable crane guardrail is applicable to various working occasions of various cranes.

The invention provides a construction hanging basket with negative bending moment in the limited space of the middle girder of a T-beam and its use method. There are foldable third guardrails and second guardrails on the side. There are multiple steel wire ropes on the third guardrail and the second guardrail. The ends of the steel ropes are equipped with hooks. Foldable guardrails are used to facilitate the hanging basket to enter the T beam. In the limited space of the beam, the screw rod is used to support the beam shoe of the T-beam, and the hook is hung on the stirrup of the T-beam. The upper-hanging and lower-bracing structure makes the basket more stable as a whole. The adjusting screw uses T-beams of different widths. Beam boots have a wide range of applications, and the height of the guardrails on both sides is different, which is convenient for tensioning equipment to enter and exit. It has multiple protections, is stable and reliable, and has low cost. It is suitable for popularization and use.

The invention discloses a semi-rigid composite beam anti-collision barrier and a construction method thereof. The semi-rigid composite beam anti-collision barrier comprises a main body made of ecological nano-particle reinforced cement-based composite material and an ultra-high ductility cement-based composite material. The prepared protective layer is formed by composite pouring of the main body and the protective layer through a construction method. The main body accounts for 2 / 3-3 / 4 of the cross-sectional height of the composite beam anti-collision barrier, and the protective layer accounts for 1 / 4-1 / 3 of the cross-sectional height of the composite beam anti-collision barrier. The semi-rigid composite beam anti-collision guardrail of the present invention has extremely high strength and durability, can better exert the safety function of the anti-collision guardrail, reduce the maintenance times of the anti-collision guardrail, and prolong the service life. Small cracks will produce a self-healing effect after the load disappears, which greatly improves the service life of the semi-rigid composite beam crash barrier.

The invention provides a medical trolley with a segmented guardrail. The medical trolley comprises a trolley body, the segmented guardrail and at least one extension interface part; the segmented guardrail is fixedly arranged on the upper end surface of a table board of the trolley body; a yielding notch allowing installation of each extension interface part is formed in the segmented guardrail, and each extension interface part is fixedly arranged on the table board and located in the corresponding yielding notch in the segmented guardrail; and the top of the highest part of the segmented guardrail is higher than each extension interface part. According to the medical trolley, the guardrail is arranged on the table board of the trolley body, on one hand, objects on the table board are prevented from falling off during using, and on the other hand, each extension interface part lower than the guardrail is protected from being broken off in a transporting process. With adoption of the medical trolley with the segmented guardrail, on one hand, production cost is reduced, on the other hand, product quality is guaranteed, use demands of a hospital are met, and on the other hand, packing volume is reduced and transporting cost is reduced.

The invention relates to highway guardrail height rapid detection equipment and a detection method thereof. The highway guardrail height rapid detection equipment includes a moving base, and further includes a height adjustment part and a dynamic detection part which are arranged on the moving base; the dynamic detection part includes a telescopic probe, a guide sleeve, a sliding column, a guide wheel, a driving resistor, a driven resistor, a reminding component and an energy component, wherein the telescopic probe is arranged on the height adjustment part and abuts against the inner side faceof a guardrail, the guide sleeve is arranged on the height adjustment part, the sliding column is slidably connected with the guide sleeve, the guide wheel is arranged at the lower end of the slidingcolumn and abuts against the top face of the guardrail, the driving resistor is arranged on the sliding column, the driven resistor is arranged on the guide sleeve and is in contact with the drivingresistor, and the reminding component and the energy component are arranged on the height adjustment part; and both the telescopic probe and the reminding component are connected with the energy component, and the driven resistor is connected with the reminder component. The moving base is pushed to move along the guardrail during detection, by observing the working state of the reminding component, whether the guardrail meets the requirements or not can be determined, the detection time is short, the detection speed is high, and the detection efficiency can be effectively improved.