46results about How to "Up and down fast" patented technology

The invention discloses a rotary lifting emergency escape ladder. After the rotary lifting emergency escape ladder is hauled to a pointed position by a vehicle or other motor-driven vehicles, four balanced supporting legs of the ladder are stretched under the action of a hydraulic system; a rotary platform is arranged on a pedestal; the rotary platform on a rotary base plate can rotate left and right; two hydraulic cylinders support a portal frame on the rotary base plate; a middle telescopic main frame and a lower telescopic main frame of three groups of telescopic main frames in the portal frame sequentially descend downwards under the actions of a self-locking motor and a steel rope at the top of the portal frame and under the action of a pulley block in turn; and after the middle telescopic main frame and the lower telescopic main frame descend to a certain depth, a telescopic frame stabilizing device stretches out and is then connected with a fixed object. The telescopic main frames, a buffering table, a bottom bridge and a ground bridge form a safe passage together. The rotary lifting emergency escape ladder has the advantages that: the ladder can be uprightly fixed, can be moved to any position to continuously carry in a way of a rolling lifter, can quickly ascend and descend to convey rescuers or goods from high-rise buildings above ground and from underground fields at a certain distance from the ground, and is safe, reliable, quick and convenient in use.

The invention discloses a non-contact driving method used for a faraday cup in an accelerator, comprising the following steps: a non-magnetic metal tube (1) and a vacuum system shell (4) are manufactured into an integral structure; a magnetic column (3) is embedded at the upper end of a magnetic column body (9); the faraday cup (10) is connected on the magnetic column body (9); the magnetic column (3) is arranged in the non-magnetic metal tube (1) communicated with the vacuum system, and can move smoothly in the metal tube (1); a magnetic ring (2) is sheathed outside the metal tube (1); and the polarity direction of the magnetic ring (2) is opposite to that of the magnetic column; the magnetic column (3) is coupled with the magnetic ring (2). The non-contact driving method provided by the invention is used for the rapid reciprocating motion devices such as faraday cup in the accelerator, and has accurate positioning and rapid driving speed.

The invention provides an operation platform for replacing radial gate side water stop rubber and a construction method thereof.The operation platform comprises positioning channel steel, the positioning channel steel is provided with fixing channel steel, the fixing channel steel is provided with a plurality of supporting channel steel, one ends of the supporting channel steel are connected with the fixing channel steel, and the other ends of the supporting channel steel are provided with adjusting channel steel; a lifting device capable of sliding up and down is arranged on the supporting channel steel, and a telescopic elevator is arranged on the lifting device. Workers are prevented from replacing the side water stop rubber in the hanging basket, the personnel safety is ensured, the working difficulty is reduced, large hoisting equipment is prevented from being occupied for a long time, and the cost is saved. The lifting device enlarges the overhaul range, is quick to disassemble and assemble, simple in structure, high in practicability, low in investment, single in material selection of machined parts, capable of replacing a certain damaged connecting part, and capable of reducing cost by using a U-shaped bolt, the lead screw can be suitable for the radial gate, potential safety hazards caused by shaking during overhaul can be avoided, and the service life of the radial gate is prolonged. Damage caused by friction between the adjusting channel steel and the gate can be eliminated.

The invention belongs to the technical field of forestry equipment and particularly relates to a cedar branch trimming device for forestry. To solve the problem that an existing pruning tool cannot prune branches dozens of meters high, the following scheme is provided: the device comprises a groove-shaped plate seat which is vertically arranged, the groove-shaped plate seat comprises two side protection plates and a middle plate, roller holes are formed in the upper and lower ends of the two side protection plates, roller driving boxes are arranged on the sides, close to the roller holes, of the opposite sides of the two side protection plates correspondingly, driving wheels are rotatably connected to the positions, close to the roller holes, of the roller driving boxes correspondingly, two parallel vertical plates are fixed to the edge of one side protection plate, and the same rotating shaft is rotatably connected between the two vertical plates. When the device is used, the device can drive a plain-end knife to rapidly make contact with small branches outside tree trunks when rapidly rushing upwards, and strong kinetic energy is matched with sharp knife edge support to smoothlycut off side branches.

The invention discloses a novel dynamic axial compression column pneumatic control structure. The novel dynamic axial compression column pneumatic control structure is composed of a pneumatic control assembly, a hydraulic control assembly, a hydraulic drive assembly and an execution original part; the pneumatic control assembly comprises a gas source switch, a gas pressure adjusting valve and a manual gas path four-way reversing valve; the hydraulic drive assembly comprises a pneumatic hydraulic pump, a gear pump and a speed regulating valve; the hydraulic control assembly comprises a pneumatic control direction switching valve I, a pneumatic control direction switching valve II and an overflow valve; and the execution original part is an oil cylinder. As the gear pump is additionally arranged in the pneumatic control structure, and the filling work of chromatography packing can be finished rapidly; and the pneumatic control structure formed by the pneumatic control direction switching valves and the manual gas path four-way reversing valve is used for switching an output oil path, and the system runs safely, reliably and stably.

The invention discloses an etching device for a semiconductor monolithic integrated circuit, which comprises a mounting seat, an up and down feeding assembly, a longitudinal sliding assembly, a knife seat, a lateral sliding assembly, a protective cover and an etching assembly. One side of the mounting seat is provided with a An up and down feed assembly, one side of the up and down feed assembly is provided with a longitudinal slide assembly, one side of the up and down feed assembly is also provided with a knife seat, and one side of the longitudinal slide assembly is connected with a lateral slide Assemblies, the bottom of the lateral sliding assembly is provided with an etching assembly, a protective cover is installed on one side of the lateral sliding assembly, the lateral sliding assembly includes a base plate, and a third guide rail is installed on one side of the base plate , one side of the third guide rail is slidably connected with a third lead screw sliding pair, the top of the third lead screw sliding pair is also installed with a second telescopic cylinder, the output rod of the second telescopic cylinder is connected to the base plate connected, the present invention has the characteristics of high processing efficiency and multiple functions.

The invention provides a gearshift device for testing an automobile gearbox, which is simple in structure, can not only realize fast shift, but also has low maintenance cost, high reliability, stability and safety performance, and can automatically operate complex movement. The gearshift device comprises a pedestal. A cylinder is arranged under the pedestal. A working bench is arranged above the pedestal. The center of the pedestal is provided with a through hole. A piston rod of the cylinder passes through the through hole and is fixedly connected with the bottom of the working bench. The pedestal is fixedly provided with a guide block. The guide block is provided with a jack. A guide rod passes through the jack and the pedestal. One end of the guide rod is fixed on the bottom of the working bench, and the other end of the guide rod is fixedly connected with a support plate. The working bench is slidably connected with a servo electric cylinder which is externally connected with a gearshift mechanism.

The invention discloses a south interisland traffic boat capable of landing, and belongs to the field of ship design. The south interisland traffic boat capable of landing at least comprises a boat body, a water spray lifting and propelling device, a general propelling device and a power control system; the water spray lifting and propelling device comprises a water absorption opening, a hosepipewith compression resistance capacity, a rigid pipeline, a water pump and a water injection opening, the water absorption opening is connected with the rigid pipeline through the hosepipe, the water absorption opening and the water pump are arranged on the rigid pipeline, and the rigid pipeline is arranged on the parts of the boat body except the stern; the general propelling device comprises a semi-submerged propeller, and the semi-submerged propeller is located at the stern of the boat body; the power control system is connected with the water spray lifting and propelling device or the general propelling device at the same time; and the problems that an existing island landing tool has large boundedness, and personnel are difficult to conveniently land the island are solved, and the effects that the environmental suitability of a ship boat to south island reefs is improved, material supply and personnel up and down are conveniently and rapidly carried out, and the operability is highare achieved.

The invention relates to the technical field of traffic equipment, in particular to a highway and railway dual-purpose intelligent multifunctional running platform. The highway and railway dual-purpose intelligent multifunctional running platform comprises a running platform main body, a track wheel driving system and a caterpillar driving system, wherein the track wheel driving system and the caterpillar driving system are correspondingly connected with the running platform main body; a lifting rotation mechanism is arranged at the bottom of the running platform main body; and one of the track wheel driving system or the caterpillar driving system is rotationally connected with the running platform main body through a rotation mechanism so that the bottom of the caterpillar driving systemis higher than or lower than the bottom of the track wheel driving system so as to realize switching between the caterpillar driving system and the track wheel driving system. According to the highway and railway dual-purpose intelligent multifunctional running platform, automatic switching between the track wheel driving system and the caterpillar driving system can be independently realized sothat the highway and railway dual-purpose intelligent multifunctional running platform is rapidly switched between highways and railways under multiple roadbed conditions; and therefore, the highway and railway dual-purpose intelligent multifunctional running platform rapidly gets on and gets off tracks under intelligent control.

The invention discloses a tab punching machine which comprises a rack, wherein an air cylinder feed mechanism and an air cylinder connecting rod punching mechanism are arranged on the rack and move left and right; a screw rod of the air cylinder feed mechanism is controlled by a servo motor to move front and back; the air cylinder connecting rod punching mechanism comprises an upper die connecting rod device, a lower die connecting rod device and a jacking air cylinder; the upper die connecting rod device and the lower die connecting rod device are controlled by the jacking air cylinder; and when the air cylinder connecting rod punching mechanism carries out punching action on a battery cell tab, the upper die connecting rod device controls an upper die to move downwards, and the lower die connecting rod device controls a lower die to move upwards. With adoption of the tab punching machine, four slotted holes are simultaneously punched in the battery cell tab, and two of the slotted holes of the battery cell tab are locked in a tab connecting piece through four screws to overlap battery cells, so that the effect of separately dismantling and replacing the battery cells is realized, and maintenance and reuse are facilitated.

The invention relates to the technical field of traffic, in particularly to a method for ascending and descending an intelligent multi-functional driving platform for railways on a track. The method comprises a track-ascending mode and a track-descending mode. The track-ascending mode comprises the step 11: through a driving system for road driving, a driving platform body is vertical to the trackvertical direction and driven to the center of the track; step 12, an elevating rotary mechanism stretches downwardly in order to lift the driving platform body to a certain height, the driving platform body rotates 90 degrees such that track wheels are aligned with a rail; step 13, the driving system for road driving ascends relative to a track wheel driving system such that the bottom of the driving system for road driving is higher than the bottoms of the track wheels, and descending the driving platform body through the elevating rotary mechanism in order to finish switching; step 14, lifting the elevating rotary mechanism. The intelligent multi-functional driving platform for railways can automatically switch between the track wheel driving system and a crawler belt driving system. Therefore, the intelligent multi-functional driving platform for railways can be ascended and descended from the track under intelligent control.

The invention relates to the technical field of traffic, in particularly to a method for ascending and descending an intelligent multi-functional driving platform for railways on a track. The method comprises a track-ascending mode and a track-descending mode. The track-ascending mode comprises the step 11: through a driving system for road driving, a driving platform body is vertical to the trackvertical direction and driven to the center of the track; step 12, an elevating rotary mechanism stretches downwardly in order to lift the driving platform body to a certain height, the driving platform body rotates 90 degrees such that track wheels are aligned with a rail; step 13, the driving system for road driving ascends relative to a track wheel driving system such that the bottom of the driving system for road driving is higher than the bottoms of the track wheels, and descending the driving platform body through the elevating rotary mechanism in order to finish switching; step 14, lifting the elevating rotary mechanism. The intelligent multi-functional driving platform for railways can automatically switch between the track wheel driving system and a crawler belt driving system. Therefore, the intelligent multi-functional driving platform for railways can be ascended and descended from the track under intelligent control.