40 results about "Guardrail height" patented technology

The invention discloses a novel anti-collision guardrail. The novel anti-collision guardrail comprises a column sleeve inserted into the ground, a stand column connected with the column sleeve in a matching mode, and a guardrail plate fixedly arranged on the stand column. The guardrail plate comprises a W-shaped hard rubber guardrail body, a net-shaped reinforcing inner core, steel wire rope inlaying grooves, steel wire ropes and glues, the steel wire ropes are glued inside the steel wire rope inlaying grooves of the W-shaped hard rubber guardrail body through the glues, and the outer side surface of the column sleeve is connected with a positioning bolt in a matching mode. The adopted W-shaped hard rubber guardrail body and the steel wire ropes can reduce the impact of collided vehicles and are particularly suitable for highly dangerous road sections, and the novel anti-collision guardrail can also solve the problem of the shortage of the guardrail height due to the rising of a road surface, can maintain the optimal height of the guardrail in real time and has the advantages of being low in construction costs and simple in construction.

The invention provides a guardrail height increasing device and method. The guardrail height increasing device comprises an inner sleeve (1), an installing rack (2) and a gear-rack transmission system, the gear-rack transmission system comprises a gear (3), a rack (4) and a gear transmission part (5), the gear transmission part (5) comprises a transmission rod (5-1), a first fastener (5-2) and a second fastener (5-3). The guardrail height increasing device has the advantages that compared with a common guardrail height increasing device, the guardrail height can be adjusted at will, and the defects that the existing guardrail height increasing device needs punching holes again and reserving holes are overcome; guardrail height increase is not limited, the height can be increased by using a special spanner for screwing, and the increasing accuracy can reach the millimeter level; the guardrail height increasing device is suitable for guardrails at different guard levels and beams in different shapes and capable of meeting the requirement for guardrail height increase of road pavement overlay.

The invention discloses a guardrail height self-adaption method capable of promoting height in impact, comprising a transversely arranged guard plate and a vertically arranged support device, wherein the upper part of the support device is connected with the guard plate so as to fix the height of the guard plate, relative to the ground; and the lower part of the support device is fixedly connected with the ground, and when the guard plate suffers from impact of a vehicle, the guard plate deconstructs the support device with assistance of external force so as to keep or promote the height of the guard plate, relative to the ground.

The invention discloses a flatly-rotated car top guard which is provided with a first vertical rod and a second vertical rod at an upper section and a lower section, wherein the second vertical rod of the guard can be overturned to be under a first cross rod by means of flat rotation (quadrilateral linkage), and the height of the guard can be reduced, so that the situation that the distance between a car top and a host machine is smaller when the elevator without a machine room stops at the top floor can be met, therefore, the distribution situation with a smaller space above the car top can be met, and the normal running of the car platform sill can not be influenced. The second vertical rod of the guard can be further overturned to be above the first vertical rod by means of flat rotation, so that the height of the guard can be increased, the requirement of the standard on the height of the guard can be met, and the safety can be guaranteed when the overhaul or other operations are carried out on the elevator car roof by workers.

The invention discloses an anti-crossing road isolation fence. The fence comprises multiple mounting seats, a protective structure is arranged at the upper end of each mounting base; the protective structure comprises a guardrail fixed at the upper end of the mounting base; a control groove is formed in the guardrail, a lead screw is inserted into the upper end of the control groove in a penetrating mode, a stress triggering mechanism is connected to the side wall of the lead screw, two symmetrically-arranged power magnetic blocks are fixed to the inner top of the control groove, and two symmetrically-arranged compression grooves are formed in the inner bottom of the control groove. The anti-crossing road isolation fence has the advantages that when a pedestrian climbs over the isolation fence, a pressing plate is pressed in the climbing process by means of force, the screw rod moves downwards, so that a magnetism isolating plate is rotated and dislocated, a sliding magnetic block slides under the magnetic force effect of the power magnetic block, air is conveyed to air cylinders of the adjacent guardrails, corrugated pipes on the adjacent guardrails are unfolded upwards, the height of the guardrails at the climbing position of a climber is increased, and the climber cannot climb over the guardrails.

The invention provides a hanging basket for hogging moment construction in a finite space of middle beams of T-beams and a using method of the hanging basket. The hanging basket comprises a supportingseat, wherein a plurality of screws are arranged on the two sides of the supporting seat; the screws are in threaded connection with the supporting seat; a foldable third guardrail and a foldable second guardrail are arranged on two sides above the supporting seat; a plurality of steel wire ropes are arranged on the third guardrail and the second guardrail; and lifting hooks are arranged on the ends of the steel wire ropes. The foldable guardrails are adopted, so that the hanging basket can enter the finite space of the middle beams of the T-beams conveniently, the screws are supported on beam boots, the lifting hooks are hung on stirrups of the T-beams, a structure whose upper part is hung and lower part is supported is adopted, and the whole hanging basket is firmer; the screws are adjusted by using the beam boots of the T-beams of different widths, the application range is wide, the heights of the guardrails on the two sides are different, and equipment can enter in and out conveniently; and furthermore, the multi-protection is achieved, and the hanging basket is stable, firm and low in cost and is suitable for popularization and application.

The invention provides a construction method of a height-adjustable safety guardrail device. The method is characterized in that protection guardrails and guardrail height locking mechanisms are arranged between adjacent fixed stand columns, wherein the protection guardrails comprises fixed guardrails and movable guardrails, wherein the movable guardrails comprise movable guardrail upper bars, middle cross rods and a plurality of connecting rods, wherein the middle cross rods are located between the movable guardrail upper bars and the fixed guardrails, and the plurality of parallel connectingrods are arranged between the movable guardrail upper bars and the middle cross rods and between the fixed guardrails and the middle cross rods in a hinged mode. According to the method, the height of the movable guardrails can be adjusted according to needs, so that when soil taking, soil digging and other operations are carried out beside foundation pits and on trestles, the no-guardrail workside operation state is effectively avoided, and the safety risk of the workside operation is reduced; and in addition, the connecting rods are obviously shortened by additionally arranging the middle cross rods, so that the lateral space at the two ends of the movable guardrails does not need to be utilized for folding, the strength of the movable guardrails can be improved, and the height of the movable guardrails can be increased.

The invention discloses a bridge with an adjustable guardrail height. The bridge comprises a bridge foundation (1) and multiple guardrail units (2) mounted on the bridge foundation (1). Each guardrail unit (2) comprises two fixed sleeve columns (4), an upper beam (21) and a lower beam (22), wherein the two fixed sleeve columns (4) are fixed to the bridge foundation (1) in a bilateral symmetry mode, the upper beam (21) and the lower beam (22) stretch across and beyond the space between the two fixed sleeve columns (4), and the upper beam (21) and the lower beam (22) are both provided with circuit devices and fixedly connected through a vertical handrail (23); a threaded hole in screw-thread fit with a vertical stud (43) is formed in each of the two fixed sleeve columns (4), and the upper end of each vertical stud (43) stretches into the upper beam (21) and is fixedly connected with the upper beam (21) in the axial direction through an upper thrust bearing (431) and a lower thrust bearing (432).

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 discloses a rotary car top guard. A vertical rod and a movable rod are arranged separately with one being above the other, so that the movable rod of the guard can rotate to drive a second cross rod to be folded to be coincident with a first cross rod, so that the height of the guard is lowered and the guard can be adapted to the condition that the space between a car top and a host is small when a machine-room-less elevator stops at a top floor and meets the arrangement condition that the space above the car top is small without influencing normal operation of a car. The movable rod of the guard can be opened to reach the place above the vertical rod through rotation, thus the height of the guard is increased to meet the requirement on the height of the guard in the standard; and a limit switch inhibits the elevator car from operating, thus the safety of a worker carrying out overhaul or other operations at the elevator car top is ensured.

The invention relates to the technical field of guardrails, in particular to a municipal isolation protective guardrail which comprises two frame bodies and a plurality of guardrail columns, protective rods are arranged in the guardrail columns, the top ends of the protective rods penetrate out of the guardrail columns, the height of the protective rods is adjusted through pop-up assemblies arranged in the guardrail columns, and sliding rods are horizontally arranged above the guardrail columns and located between the two frame bodies. Sliding blocks are arranged at the two ends of the sliding rod, sliding grooves are formed in the opposite side walls of the two frame bodies, and the sliding blocks longitudinally slide in the sliding grooves and adjust the height of the sliding rod; the height of a sliding rod is adjusted by releasing the elastic force of a second spring, when a pedestrian climbs over the guardrail, the height of the sliding rod is increased, at the moment, a protection rod can stretch out of a guardrail column under the elastic force of a pop-up spring, the height of the guardrail is integrally increased, the climbing difficulty of the pedestrian is further increased, and then the pedestrian is protected.

The invention discloses a mechanization device for continuously and freely heightening a wave-shaped beam guardrail. The device is characterized in that a gear rack device with a one-way stop device is arranged in a foundation stand column with an inner cavity channel, and a rack is used for pushing an outer sleeve assembly provided with an anti-blocking block sleeving frame and a stand column sleeve; problems that an existing wave-shaped beam guardrail can only be heightened step by step and needs to be disassembled when adjusted can be solved, side face driving, free adjustment and reliable positioning in the height direction of the wave-shaped beam guardrail can be achieved by converting rotation into linear motion through gears and racks and adopting the one-way rotation reverse self-locking performance of a one-way stop device similar to a ratchet wheel, and the wave-shaped beam guardrail is convenient to operate and high in practicability; installation is simple, and construction efficiency can be greatly improved.

The invention discloses a guardrail height adjustment device for a catenary maintenance vehicle penetrating platform. The guardrail height adjustment device comprises a plurality of height adjustmentsections which are sequentially arranged from left to right. The height adjustment sections comprise first supporting piece, second supporting pieces with length being shorter than the first supporting pieces, third supporting pieces and first bases arranged on the catenary maintenance vehicle penetrating platform. The upper ends of the first supporting pieces are movably connected to a guardrailof the catenary maintenance vehicle left and right, and the lower ends of the first supporting pieces are hinged to the catenary maintenance vehicle penetrating platform. The upper ends of the secondsupporting pieces are hinged to the middle of the first supporting pieces, and the lower ends of the second supporting pieces are hinged to the third supporting pieces. The third supporting pieces aremovably connected to the first bases up and down. The guardrail height adjustment device can realize independent adjustment that only the height of a single guardrail is changed and avoids the problem that each guardrail cannot be adjusted to the same height due to the following actions of other height adjustment sections when one height adjustment section is adjusted.

The invention provides an application method of a lifting safe guardrail device. A protection guardrail arranged between adjacent fixed stand columns and guardrail height locking mechanisms are adopted. The protection guardrail comprises a fixed guardrail and a moving guardrail. The moving guardrail is arranged above the fixed guardrail. The height of the moving guardrail can be adjusted accordingto needs. When soil taking, soil excavation and other work are carried out beside foundation pits and on bridges, the operation of demounting a mounted guardrail device in order to provide operationspace for normal use of mechanical equipment is not needed, only the moving guardrail needs to be lowered to the needed height, and the moving guardrail can be locked on the fixed stand columns through the guardrail height locking mechanisms. In the work process of the mechanical equipment, the moving guardrail with the height reduced still can keep the guardrail function. After work of the mechanical equipment is finished, the normal height of the moving guardrail can be restored rapidly, conveniently and safely, and therefore the guardrail-free limb work state is effectively avoided, and thesafety risk of limb work is reduced.

The invention discloses a hydraulic elevator device with high safety performance, and relates to the technical field of hydraulic elevators. The hydraulic elevator device with high safety performancecomprises a movable base, an elevator body, a protection device and a climbing device, wherein the elevator body is fixedly installed on the upper surface of the movable base, the protection device isfixedly installed on the top of the elevator body, and the upper surface of the movable base is in sliding connection with the climbing device. According to the hydraulic elevator device with high safety performance, through arrangement of the protection device, a first electric push rod and second electric push rods can be used for driving a concentric-square-shaped guardrail and a guardrail plate to extend out of the upper portions of a protection plate and a cabinet door correspondingly, so that the concentric-square-shaped guardrail and the guardrail plate form a height-adjustable complete protection guardrail, the guardrail heights corresponding to workers can be selected by fencing rods according to the different workers, so that the workers with different heights are effectively protected, and practicability of the device is improved while safety is improved.

The invention provides a height-adjustable safety guardrail device. A protective guardrail and a guardrail height locking mechanism are arranged between adjacent fixed columns. The protective guardrail comprises a fixed guardrail and a movable guardrail, wherein the movable guardrail comprises a movable guardrail upper gear, a middle cross rod and a plurality of connecting rods; and the middle cross rod is located between the movable guardrail upper gear and the fixed guardrail, and the plurality of parallel connecting rods are correspondingly arranged between the movable guardrail upper gearand the middle cross rod, and the fixed guardrail and the middle cross rod in hinged modes. The height of the movable guardrail can be adjusted according to needs, so that it is convenient to effectively avoid the limb operation state without the guardrail and reduce the safety risk of the limb operation when operations such as soil fetching and soil digging are carried out at the edge of a foundation pit or a trestle. In addition, according to the device, through additionally arranging the middle cross rod, the connecting rods are obviously shortened, the movable guardrail can be folded without the help of the lateral space at the two ends of the movable guardrail, and the strength of the movable guardrail can be improved, so that the height of the movable guardrail is increased.

The invention discloses an automatic plastic spraying system for guardrails. The automatic plastic spraying system for the guardrails comprises a machine shell, a second sliding block machine shell and a third measuring block machine shell, wherein four moving cavities with the lower ends communicating with the outside are formed in the machine shell; control cavities with the right ends communicating with the outside are formed in the upper end walls of the moving cavities; a rope winding cavity is formed in the machine shell; a driving cavity is formed in the second machine shell; a detection cavity with the lower section communicating with the outside is formed in the third measuring block machine shell; an execution cavity with the left end communicating with the outside is formed in the upper end wall of the detection cavity; two symmetrical driven cavities are formed in the front part and the rear part of the interior of a driven plastic spraying ring and the front part and the rear part of the interior of a driving plastic spraying ring respectively; an automatic spring is fixedly connected with a sealing ball; the sealing ball is opened when the liquid pressure intensity is increased, so that paint can pass through; the lower end face of the second machine shell is slidably connected with a detection rod; the detection rod can detect the height of a guardrail; a measurement ball is arranged in a detection cavity; and the measurement ball can control stopping of the third machine shell, so that the third machine shell is prevented from colliding with the ground.