77results about How to "Avoid falling objects" patented technology

The invention discloses a portable electric power and power grid overhead line construction and maintenance protection device. The portable electric power and power grid overhead line construction and maintenance protection device comprises a conductor grip upper frame (1), a first conductor grip lower frame (2), a second conductor grip lower frame (3), a first connecting rope (4), a connecting device (5), a third connecting rope (6), a belt device (7), a fourth connecting rope (8) and a protection plate device (9). The portable electric power and power grid overhead line construction and maintenance protection device is good in protection effect, a protection device at the lower end can be folded, the device is convenient for electric power maintenance workers to carry about during line maintenance, and the maintenance workers conveniently climb pylons up and down, so that the operation difficulty is reduced, and the overall work efficiency is improved; the operation is more convenient; the stability and adaptability are high, and different construction environments can be met; the operation process is simple, meanwhile the overall protection range is wide, and the safety factor is high; and the device can be stably fixed on a line, and also has a good wind prevention effect.

The invention provides an attached type lifting scaffold made of aluminum alloy, and particularly relates to the technical field of building construction instruments. The attached type lifting scaffold made of the aluminum alloy comprises a scaffold body framework, a vertical main framework, an attached supporting system, a lifting system and a synchronous control system, wherein the scaffold bodyframework is connected with the vertical main framework and the attached supporting system, the lifting system is connected with the attached supporting system, and the synchronous control system isconnected with the lifting system. The attached type lifting scaffold made of the aluminum alloy has the advantages of being light in weight, high in strength, small in number of machining proceduresneeded by production, capable of being formed at a time, capable of avoiding the problem that an existing steel climbing frame walkway plate is prone to rusting, capable of greatly improving the safety of a climbing frame, convenient to transport, construct and use and capable of saving construction time.

The invention discloses a safety type glass curtain wall. The safety type glass curtain wall comprises a mounting box, the mounting box comprises a main frame, a switch control system, a glass mounting frame, a baffle and a locking mechanism, the switch control system is arranged on one side of the interior of the upper side wall of the main frame, the switch control system drives the glass mounting frame to rotate through gear transmission, so that inward opening or outward opening of glass mounted on the glass mounting frame is realized; the baffle is slidably connected into the main frame in an inserting mode; and the locking mechanism is arranged between the upper edge of the baffle and the upper side wall of the main frame. Outward opening and inward opening of the glass curtain wallcan be automatically realized through the structure, the glass curtain is conveniently cleaned, the safety is improved, strength is saved, operation is convenient, and great convenience is brought tolife.

The invention provides an elevator shaft design method and system based on image recognition. The method includes collecting hoistway images vertically at intervals; performing identification, splicing and A/D conversion on the images in sequence and forming a complete shell model of the maximum allowable accommodating space of the elevator hoistway; generating parameterized data by utilizing theshell model; performing smart matching between the parameterized data and a specified elevator parameter specification; if the matching is successful, outputting the elevator parameter specification as a design solution; if the matching is unsuccessful, adjusting the elevator parameter specification and then performing matching again until the matching is successful. According to the elevator parameter specification matching method and device, the personal injury accidents such as high object falling, missing stepping and shearing which are likely to happen in the operation process of personnel in the dangerous environment of the elevator hoistway are avoided, and the design scheme can be automatically generated.

The invention provides a cantilever unloading platform, comprising a main body part; the main body part comprises a bottom plate and a side edge guard perpendicular to the bottom part; the side edge guard comprises a left side guard, a right side guard and a front side guard; the cantilever unloading platform also comprises a retractable outer side horizontal guard; the retractable outer side horizontal guard is located on the periphery of the main body part; the horizontal guard is connected onto the bottom plate in a pivoting manner; the outer edge of the horizontal guard is provided with a plurality of first steel ear plates; the upper edge of the side edge guard is provided with a plurality of second steel ear plates; the first steel ear plates and the second steel ear plates are corresponding one to one in position; and a tension steel wire rope is connected between each pair of first steel ear plate and second steel ear plate. The cantilever unloading platform is capable of effectively avoiding object falling from high altitude, and normal hoisting operation is not influenced.

The invention discloses a scaffold for building construction, and relates to the technical field of building construction equipment and facilities. The scaffold for building construction comprises fixing base bodies, the fixing base bodies comprise fixing bases, fixing guide tubes, fixing springs, fixing claws, special-shaped blocks, reinforcing bases and reinforcing bolts, the fixing guide tubesare distributed on the circumferences of the fixing bases, the fixing springs are located inside the fixing guide tubes and the fixing bases, and one ends of the fixing springs are fixedly connected with the fixing claws. According to the scaffold for building construction, through grasping force of the fixing claws to soil, the fixing performance of the fixing claws to the fixing bases is enhanced, the fixing effect of the fixing bases are improved, meanwhile, a buried pit is buried, the reinforcing bases are connected to the surfaces of supporting rods in a sleeving mode, the reinforcing bases and the ground are fixed through the reinforcing bolts, and the supporting rods are subjected to reinforced supporting by the reinforcing bases, so that the fixing effect of the fixing base bodieson supporting main bodies is improved, and the safety of the scaffold is enhanced.

The invention relates to a variable bent joint, and belongs to the technical field of an auxiliary fishing tool for a petroleum and natural gas well. The variable bent joint comprises an outer tube, a directional joint, a piston, an upper joint and a lower joint, wherein one end of the outer tube is provided with the upper joint through screw threads; the piston is arranged in the outer tube positioned at one side of the upper joint through a piston ring; the other end of the outer tube is provided with an upper ball seat through screw threads; and a cam is arranged in the outer tube positioned between the upper ball seat and the piston through a cam seat and a cam pin. In the use process of the variable bent joint, the bent corner action can be done, so that the problems that the existing tool can only be used for fishing fallen objects in a straight well or in the axial line direction of a well body and has a small use range and the problems of low repeated use rate and high cost of the existing fishing tool are solved. The variable bent joint has the advantages that the strength is high; greater pulling force, pressure and twisting force can be borne; the application range is wide; the variable bent joint can be matched with a drilling jar to be used; meanwhile, the back-off operation can be realized; and positive popularization significance is realized.

The invention discloses a scattered object fracturing bomb device which comprises an ignition assembly, a fracturing bomb assembly and a bomb tail, wherein the ignition assembly, the fracturing bomb assembly and the bomb tail are connected in sequence; and the fracturing bomb assembly comprises a central tube, an externally installed grain, an internally installed grain and a detonating cord, wherein the externally installed grain is arranged on the periphery of the central tube, the internally installed grain is arranged in the central tube, the detonating cord axially penetrates through and is arranged in the internally installed grain, a plurality of through holes are formed in the tube wall of the central tube, and a pressure relief opening is formed in an area of the central tube, wherein gun powder is not applied to the area. During operation, the internally installed grain is ignited first by the detonating cord; then the externally installed grain is ignited by gunpowder through the through holes; finally, the whole gunpowder rapidly burns, high-pressure gas pulse is generated in a preset position, and a plurality of cracks are formed around a well by the high-pressure gas pulse; then the wreckage of the device is lifted out of the mouth of the well through a cable, and scattered objects cannot be left in the well; and additionally, the pressure relief opening can be used for balancing the inner and outer static pressure of the central tube, so that the device is suitable for being operated in a deeper well. In addition, the pressure relief opening can be used for relieving the pressure generated in the central tube during operation, so that the central tube can be preferably enabled not to be fractured or severely deformed during explosion of the device.

The invention discloses a safety window. The safety window comprises a window frame, a window grille and a fireproof curtain; the window grille is arranged on a window opening of the window frame andconnected with the window frame, and an avoiding space is formed by the window grille deviating from the window opening of the window frame; the fireproof curtain is arranged on the window frame and has a first state of being unfolded to shield the window opening of the window frame and a second state of being folded at the window frame; the window grille is provided with an escape exit and a doorgrille used for opening and closing the escape exit; the escape exit communicates with the avoiding space, and the door grille is arranged at the escape exit and rotationally connected with the window grille through a hinge piece; and the door grille is provided with a door lock, and locking or unlocking between the door grille and the window grille is controlled through the door lock. Accordingto the scheme, the problem that an existing safety window is not beneficial to escape of indoor personnel and rescue of rescue personnel can be solved.

The invention discloses a safety protection net for building construction. The safety protection net is characterized by comprising a frame, the frame is connected through four folding bearings in a sliding mode, the outer wall of the frame is fixedly connected with four annular buckles, a detachable protection net is arranged in the frame, the four corners of the protection net are provided withfour fixing rings, each annular buckle comprises an annular support, a first guide groove is formed in one end of the annular support, a guide column is arranged in the first guide groove, and a spring is wound around the periphery of the guide column, the outer wall of each annular buckle is connected with a bearing in a welded mode. The protection net provided by the invention has the beneficialeffects that the protection net composed of a plurality of layers of protection layers is utilized, the high-altitude falling object can be effectively prevented, the simple and convenient annular buckles are utilized, and the installation process of the safety protection net can be simplified, the construction efficiency is greatly improved, the folding of the outer frame can be realized by utilizing the folding bearing, and transportation and storage are facilitated.

A substation-side plug-in pipe fitting includes a bus bar portion having a first plug-in piece; a flexible wire portion having a second plug-in piece with a first plug-in slot on its sidewall; a thirdplug-in piece having one end connected to the second plug-in piece and the other end spaced apart from the second plug-in piece, wherein the sidewall of the third plug-in piece opposite to the firstplug-in slot is provided with a second plug-in slot, the second plug-in slot is opposite to the first plug-in slot, and the combination of the first plug-in slot and the second plug-in slot cooperateswith the first plug-in piece; and a first connecting member having a threaded end detachably connected to the second plug-in piece and the third plug-in piece through threads, wherein the joint is located on the ends of the second plug-in piece and the third plug-in piece away from the second plug-in piece and the third plug-in piece. It is just required to loosen the threaded end of the first connecting member. The substation-side plug-in pipe fitting is easy to operate, does not require to completely remove the first connecting member, and ensures the personal safety of construction workersbelow.

The invention provides a protective device with an anti-thief function, and relates to the technical field of alarm devices, the protective device comprises a base, a sponge windowsill is hinged to the front end of the base, the middle upper end of the sponge windowsill is of a sponge structure, the lower end of the sponge windowsill is of a solid structure, and guide columns are fixedly connected to the left side face and the right side face of the sponge windowsill; the sponge windowsill is slidably connected to the inner side of the base through the guide columns, and side plates are further fixedly connected to the left side face and the right side face of the base. The problems that when an existing alarm device carries out warning, sound and light are mostly adopted for reminding indoor personnel, mutual reminding of surrounding neighbors is lacked, and thieves cannot be effectively prevented from entering a room are solved, a support is synchronously unfolded through a steel cable installed on one side of a hook B, so that the safety of the thieves is improved, and the safety of the thieves is improved. After the support is separated from the pressing block arranged on one side of the stand column, thieves can be repelled through continuous flickering of the flashing lamp arranged on one side of the support and continuous buzzing alarming of the buzzing baffle arranged on the outer side of the support.

The invention discloses a construction and protection integrated device for an elevator shaft. The device comprises a supporting platform, protective plates, a plurality of hooks, casing pipes and hanging rings, wherein the protective plates are arranged in the peripheral direction of the supporting platform and hinged to the supporting platform; when the protective plates are turned over to a preset angle relative to the supporting platform, the edges of one sides of the protective plates are in abut joint the shaft wall; the casing pipes penetrate through the wall; the hooks penetrate through the casing pipes and are fixed to the wall through fasteners; the hanging rings are arranged on the edges of the supporting platform in a manner of corresponding to the hooks; and the hanging ringsare hung on the hooks so that the supporting platform can be fixedly connected with the elevator shaft. According to the device, materials can be obtained conveniently, the construction function and the protection function are integrated, disassembling and assembling are convenient and fast, and the device can be used repeatedly by one-time input.