71results about How to "Avoid fall hazards" patented technology

The invention provides a system and method for preventing a child from climbing a window and falling. The system includes: a motor arranged on the window and used for controlling opening and closing of the window; and distance sensing equipment which is arranged in the periphery of the window, is in communication connection with a mobile terminal and the motor, and is used for sensing distance between a child close to the window and the window in real time to form distance information, comparing the distance information and preset distance, forming a ringing instruction and a starting instruction when determining that the distance information is in the preset distance range after comparison, controlling the mobile terminal to perform ringing reminding through the ringing instruction, and controlling the motor to start and close the window through the starting instruction. The system provided by the invention starts the motor to close the window and sends information to the mobile terminal to remind an adult when distance between the child and the window falls in the preset distance range, thereby providing dual protection for the child, and effectively preventing the child from danger of climbing the window and falling.

The invention discloses a ward risk early warning system and an early warning method thereof. The system comprises a hand-held device, a multifunctional ward bed, a nurse station early warning caution management platform, a doctor station early warning caution management platform and a data center platform; the hand-held device is provided with a first communication module, an electronic label card reader, a code scanner, an information input module and a first controller; the multifunctional ward bed comprises a bed body, and an electronic label, a second communication module, a data input port, an infrared sensor and a second controller which are arranged on the bed body; the nurse station early warning caution management platform comprises a third controller, a third communication module and a first information prompting device; the doctor station early warning caution management platform comprises a fourth controller, a fourth communication module and a second information prompting device; and the data center platform comprises a fifth controller, a fifth communication module and a short message sending base station. The system can realize automatic early warning prompting and real-time monitoring of the conditions of patients, and improves the reliability and the safety of medical monitoring.

The invention relates to the technical field of lifting machines, in particular to a bridge pier lifting machine for cross-sea bridge construction. The bridge pier lifting machine comprises a balanceframe, an extension frame is arranged on the surface of the balance frame, a cross rod is arranged on the surface of the extension frame, the cross rod penetrates through clamping arms, meshing toothed plates are arranged on the surfaces of the clamping arms, and the meshing toothed plates are in meshing connection with driving fluted discs; and a pin shaft is sleeved with the driving fluted discs, the pin shaft is inserted into the surface of the mounting frame, the mounting frame is fixed to the top face of the extension frame, the outer side of the pin shaft is sleeved with a driven belt wheel, and the driven belt wheel is connected with a driving belt wheel through a transmission belt. The bridge pier lifting machine for cross-sea bridge construction has the beneficial effects that theclamping arms are additionally arranged on the two sides of the balance frame, the clamping force of the clamping arms is adjusted through cooperation of the meshing toothed plate and the driving fluted disc, and compared with the mode that a bridge pier is bound through a rope alone, the firmness is better when the bridge pier is clamped through the clamping arms.

The invention discloses an automatic lifting safety rod for a power transmission equipment iron tower. The automatic lifting safety rod comprises an anchor block, the high-voltage iron tower is arranged on the anchor block, a threaded rod is connected to a stay wire support, the threaded rod is correspondingly connected to the anchor block and provided with a sliding lifting supporting sleeve, the lifting supporting sleeve is further connected with a first supporting shaft, a second supporting shaft is perpendicularly connected to the first supporting shaft, a lifting back box is correspondingly connected to the second supporting shaft, a motor for driving a first worm to rotate is arranged in the lifting back box, and the lifting supporting sleeve can be further driven by rotation of the motor to slide on the threaded rod, so that the lifting supporting sleeve further drives the lifting back box to slide, the human body is driven to lift to the stay wire support, and the problem that a danger is caused when a worker climbs the high-voltage iron tower is further avoided.

The invention discloses an unlocking mechanism of a battery box of an electric vehicle. The unlocking mechanism of the battery box of the electric vehicle comprises a buffering support, an unlocking pull rod, limiting blocks, boosting rods, sensors and a prepressing rod. The unlocking pull rod is fixed to the buffering support. The unlocking pull rod corresponds to the center of the battery box to be unlocked. The prepressing rod is arranged above the unblocking pull rod. The sensors are arranged at the two ends of the unblocking pull rod. The boosting rods are fixed to the two ends of the buffering support. Each limiting block is fixed to one side of the corresponding boosting rod. According to the unlocking mechanism of the battery box of the electric vehicle, the middle petal-shaped unlocking rod improves the reliability of the unlocking mechanism when the unlocking mechanism pushes and pulls the battery box, the battery box will not slide off under the conditions of vibration and inclination, and the risk of falling of the battery box is avoided; the two boosting rods arranged on the sides facilitate the balance of the battery box when the battery box is pushed and pulled and increase the pushing force exerted by the unlocking mechanism on the battery box, and therefore the battery box can enter a bracket more smoothly; due to the design of auxiliary rings, the unlocking mechanism is elaborate in structural design and convenient to machine and maintain, and reduces machining cost.

The invention provides a movable branch shearing machine. A fixed seat is mounted at the top of a movable platform; a fixed arm is mounted at the top of the fixed seat through a rotary mechanism; a rocker arm is hinged to the top of the fixed arm through a pin shaft, and a main arm is hinged to the tail end of the rocker arm through a pin shaft; a first telescopic arm is arranged in the main arm in a telescopic sliding fit mode; a second telescopic arm is arranged in the first telescopic arm in a telescopic sliding fit mode; a clamping mechanism used for clamping a to-be-pruned branch is fixedly installed on the first telescopic arm; a shearer base is hinged to the tail end of the second telescopic arm through a fifth pin shaft; and a shearer for shearing branches is mounted on the shearerbase. The shearing machine is carried on a movable walking chassis and can be well used for shearing and trimming branches around a high-voltage line.

The invention discloses a protection device for high-rise building construction. The device comprises a base; supporting plates are connected with the two sides of the top end of the base in a weldedmode; a guardrail is connected between the two supporting plates in a welded mode; elevators are fixedly connected with the inner walls of the supporting plates correspondingly; a protection mechanismis installed on the front end face of the base; the protection mechanism comprises two L-shaped plates connected with the front end face of the base in a welded mode; bearings are fixedly connected with the inner walls of the L-shaped plates; and a frame is rotatably connected between the two bearings. According to the protection device for high-rise building construction, under the action of theprotection mechanism, the frame can rotate through the bearings, and is mounted on the front end surface of the base; an operator can be prevented from falling during construction operation through aprotection net in the frame, and the protection net can catch the operator and a tool falling during operation, so that the tool can be prevented from falling to injure people, the safety of high-rise building construction is effectively guaranteed; and when the device is not used, the protection net can be folded and stored, so that no space is occupied.

The invention discloses a power-driven weight lifting mechanical device. The power-driven weight lifting mechanical device comprises a base. The two side positions on the bottom of the base are detachably connected with rack frames. The two end positions on the upper portion of the base are connected with a front vertical frame and a rear vertical frame in a welded manner correspondingly. The front vertical frame and the rear vertical frame are both detachably connected with a supporting arm. The top position of one end of the supporting arm is detachably connected with a lifting motor. The lifting motor cooperates with a reel, and the reel is wound by a sling. The bottom of the supporting arm is provided with a slide way in a welded manner. The two ends of the slide way are connected withlead screw bases in a welded manner. The lead screw bases cooperate with a lead screw. A sliding frame penetrates the lead screw. One end of the sliding frame is provided with a sliding frame pulley,and the end portion of the supporting arm is provided with a supporting arm pulley. The power-driven weight lifting mechanical device is good in anti-sliding performance and can be fixed to the ground, material lifting operation is easy, the power-driven weight lifting mechanical device can pull materials to get close to the device placement position, and the material taking safety is improved.

The invention provides a safe and reliable high-position book taking and placing device. The device comprises a supporting plate, a first groove formed transversely and a second groove formed longitudinally are formed in the top face of the supporting plate, a first gear is fixedly installed in the center of the periphery of a lead screw, nuts are installed on the two sides of the periphery of thelead screw in a threaded mode correspondingly, and sliding blocks capable of moving horizontally are fixedly installed on the top faces of the nuts correspondingly. The longitudinal length of clamping plates is larger than that of the supporting plate, T-shaped sliding grooves are vertically formed in the inner sides of the clamping plates correspondingly, and T-shaped sliding blocks are arrangedin the T-shaped sliding grooves correspondingly. According to the device, through mutual cooperation of the clamping plates, the sliding blocks, the nuts, the lead screw, a motor, a rotating shaft and other structures, books at a high position can be taken and placed, compared with a movable platform, the device is smaller in size and smaller in occupied space, a user does not need to climb highto take the books in use, and the danger of falling from a high position is avoided; and when not in use, the device can be used as a stool, a storage table or a simple bookshelf, part of sundries canbe placed, and the utilization rate of indoor space is increased.

The invention discloses a maintenance platform for hydraulic supports. The maintenance platform comprises a working platform (1), a base (2), supporting beams (3) and a first-stage jack (4), wherein one ends of the supporting beams (3) are hinged to the base (2), the other ends of the supporting beams (3) are hinged to the working platform (1), and the two ends of the first-stage jack (4) are hinged to the base (2) and the supporting beams (3) respectively. Staff are located behind the working platform (1), the first-stage jack (4) extends out, the supporting beams (3) rotate in a vertical plane, and therefore the height of the working platform (1) can be increased, the staff can be directly transported to the preset height, the hydraulic supports can be maintained at the preset height, the staff are prevented from climbing up and down, and the personal safety of the staff is protected. According to the maintenance platform, the danger that the staff fall when climbing high for maintenance is effectively avoided, and the safety is improved.

The invention relates to lamps with adjustable focal lengths, which comprise a shell and a light-transmitting piece which form an inner cavity commonly and a light source and a reflective piece which are arranged in the inner cavity, wherein a focal length adjusting device for driving the reflective piece to move forwards and backwards relative to the light source is also arranged in the inner cavity; the focal length adjusting device comprises a guiding element which is connected with the reflective piece and can make front and back linear motion, a motor fixedly connected with the guiding element, an eccentric wheel fixedly connected with a rotating shaft of the motor and an eccentric wheel positioning device which is fixedly connected with the shell and is provided with a positioning hole; and the eccentric wheel is in clearance fit with the positioning hole. Compared with the prior art, the lamps can adjust the focal lengths remotely; and the lamps are arranged at a higher position without climbing operation, so that the danger of falling from high positions is avoided.

The invention discloses a support frame for automatically mounting an advertising board on a street lamp pole in municipal administration. The structure comprises the street lamp pole, wherein a sliding base capable of sliding is arranged on the street lamp pole, a corresponding advertising support frame body is connected to two sides of each of the sliding base and a support base, the sliding base comprises a first sliding base and a second sliding base in corresponding connection, a first rotating shaft and a second rotating shaft in a rotation state are arranged in the first sliding base, a first gear is arranged on the first rotating shaft, a drive wheel is arranged on the second rotating shaft, the drive wheel rotates on the street lamp pole, a first sliding shaft in a sliding state is further arranged in the first sliding base, the first gear drives the first sliding shaft to slide, through the rotation of the drive wheel on the street lamp pole, the advertising board is further driven to rise and fall, then the mounting of the advertising board is further facilitated, and the risk that workers under the work at heights fall off is avoided.

The invention discloses an attached type lifting device for cleaning a tall and big-space of a cleaning chamber. The device comprises a movable scaffolding and a movable material lifting device, wherein the movable material lifting device comprises a mobile base, a mobile rail, a conveying goods shelf, a winch, a dragging steel cable, connecting trundles and a connecting plate, wherein the mobile rail and the winch are fixed on the upper surface of the mobile base; the upper and lower top ends of the mobile rail are fixedly connected with the movable scaffolding by movable connecting devices; the connecting trundles are respectively arranged on the left and right sides of the mobile rail; the connecting trundles are connected with the conveying goods shelf by the connecting plate; the dragging steel cable is fixed above the conveying goods shelf; the other end of the dragging steel cable is connected with a power output end of the winch by being wound on a fixed pulley; the conveying goods shelf is lifted up and down along the mobile rail by the connecting trundles under the lifting of the dragging steel cable; during lifting, materials do not fall off, the lifting operation is finished on the ground, the lifting device is quite simple and convenient to mount and dismount, safe and quite high in efficiency.

The invention discloses A photovoltaic solar pavement automatic telescopic charging kiosk which include a pavement, one side of the road surface is provided with a fixed seat, A first sliding groove is arranged on the fixing seat, the first slide groove is provided with a sliding first telescopic platform, the two sides of the first telescopic platform are respectively provided with a sliding first support shaft, A fix ceiling is correspondingly arranged on that two first support shafts, A solar cell panel is arranged on the fixed ceiling, two first threaded shafts rotating in the first sliding groove are arranged in the fixing seat, the first threaded shaft drives the first telescopic platform to slide, The sliding of the first telescopic platform can further drive the lifting and lowering of the fixed ceiling, so that the vehicle can be further charged after the electric power is generated by the solar battery panel, and the problem that the vehicle is unable to travel can be furtheravoided.

The invention provides a screwdriver, which comprises a main body (10) and a magnetic element (20), wherein the main body (10) comprises a screwdriver bit (11) and a screwdriver bar (12) fixedly connected with the screwdriver bit (11); the magnetic element (20) is fixedly connected with a hammer body (10). The screwdriver is higher in safety.

The invention relates to the technical field of chemical equipment, and discloses a safe reaction kettle capable of preventing sticking and grinding and fully mixing. The safe reaction kettle comprises an upper shell, a lower shell, a feeding pipe, a shaking mechanism, a stirring mechanism, a mixing filter screen and a discharging pipe, wherein the feeding pipe is arranged at the top of the upper shell, and the inner side of the top of the upper shell is fixedly connected with a pull rod; the mixing filter screen is arranged below the pull rod, the shaking mechanism is arranged on the lower side of the mixing filter screen, the edge of an opening of the upper shell is provided with an upper buckling edge, the edge of an opening of the lower shell is provided with a lower buckling edge, the upper buckling edge is provided with a buckling groove, and the lower buckling edge is provided with a buckling block matched with the buckling groove. The outer side of the edge of the lower buckling edge is fixedly connected with at least three stand columns, and the upper buckling edge can rotate in the stand columns. The stirring mechanism is arranged at the center of the bottom of the lower shell, and the discharging pipe is arranged on the right side of the bottom of the lower shell. According to the invention, the problems that in the prior art, in the material mixing process of a reaction kettle, material residues are likely to be generated, mixing is not uniform enough, sticking and grinding are likely to happen, and the safety coefficient is low are solved.