47results about How to "Long telescoping distance" patented technology

The invention discloses an adjustable lifting platform used in aerial work for line construction. The adjustable lifting platform comprises an insulation movable base, a lifting support, a primary lifting device, a secondary lifting device and an operation platform, wherein a driving traveling wheel, a universal driven traveling wheel and a brushless hub motor are arranged on the bottom of the insulation movable base, the driving traveling wheel and the universal driven traveling wheel are both connected with the brushless hub motor, the lifting support is in the shape of a reversed U and fixedly arranged at the upper end of the insulation movable base, the primary lifting device is arranged on the inner side of the lifting support, the secondary lifting device is arranged above the primary lifting device, the operation platform is fixedly arranged at the upper end of the secondary lifting device, guardrails are arranged around the operation platform, a tool accommodating table is arranged on the operation platform, and a controller is arranged on the tool accommodating table. The adjustable lifting platform is novel in structural design, convenient to operate, and capable of achieving two-stage lifting and improving line construction efficiency, a constructor can operate the controller alone to achieve lifting, rotation and movement, and using is quite convenient.

The invention relates to a centering adjustment method for wheel sets of a locomotive test stand and a traction force meter stand thereof. In order to enable all locomotive wheels of a locomotive to completely fall into corresponding rail wheels in foundation pits of the test stand, during test, the centers of the locomotive wheels are required to be kept perpendicularly centered with the centers of the rail wheels, and the locomotive is required to run in location mode in the horizontal direction, and thus the tested locomotive can be ensured to run stably and safely on the test stand. The centering adjustment method of the test stand of the locomotive comprises the following steps of 1 selecting the central lines of the foundation pits of the rail wheels to serve as location reference lines; 2 adopting a double-traction force meter stand to serve as the test stand; 3 performing secondary centering adjustment on the locomotive wheel sets and the rail wheel sets; and 4 providing the same pre-tightening force for a car coupler of the tested locomotive, and offsetting or reducing the horizontal displacement of the locomotive caused by deformation of the car coupler buffer. A speed reducer shaft of the traction force meter stand is parallel with a crew, a nut is screwed on the screw, a chain wheel on the speed reducer shaft is connected with a chain wheel on the nut through a chain, and one end of the screw is connected with a traction force measurement device.

The invention discloses a lifting type transfer vehicle for a severely sick person and a using method of the lifting type transfer vehicle, and belongs to the field of medical transfer vehicles. The lifting type transfer vehicle comprises a lower frame, a scissor type lifting mechanism and an upper frame, wherein a telescopic bed board is mounted on the upper frame, and the upper frame can performlifting motion; lifting mechanisms located at the bed head and the bed tail of the transfer vehicle are arranged at two ends of the lower frame respectively, a translation frame is mounted at the topend of the lifting mechanisms at both ends, an electric drum is arranged on each of two sides of the translation frame, and a supporting mechanism is also mounted on the side, extending outwards, ofthe translation frame. A bed sheet is tightened by the electric drums and drives the body of the severely sick person to be lifted or lowered, so that the severely sick person can be flexibly transferred between the target bed body and the transfer vehicle in cooperation with the telescopic bed board, stability of the vehicle body in the transfer process of the severely sick person is ensured by the supporting mechanism, and transfer operation of the severely sick person can be completed by one person, and the transfer vehicle has the advantages of being simple in structure, convenient to operate, safe, reliable, low in manufacturing cost and the like.

The invention discloses a cloth surface brushing machine. The machine comprises a frame, a cloth spreading wheel fixing rack is fixedly arranged at one side of the frame, a cleaning assembly is fixed at the other side of the frame, the cloth spreading wheel fixing rack is provided with a plurality of cloth spreading wheels in a staggered manner, a cloth-to-be-processed storage box is arranged below the cloth spreading wheels, a correcting instrument is fixedly arranged below the cloth spreading wheel fixing rack, a tensioning pulley is arranged at the lower end of the correcting instrument, the cleaning assembly comprises a plurality of cleaning rollers, brushing rollers, adjusting wheels and delivery wheels, and a rolling mechanism is arranged at one side of the cleaning assembly. The machine has the advantages of simple structure principle, high automation degree, realization of rapid brushing cleaning of a cloth surface through adopting two groups of brushing rollers, high working efficiency, and reduction of the workload of workers.

The invention discloses a combined type hydraulic cylinder with a floating cylinder barrel. The combined type hydraulic cylinder comprises an oil inlet end piston rod, a combined type cylinder barrel and a non-oil inlet end piston rod, wherein the oil inlet end piston rod and the non-oil inlet end piston rod are respectively combined with an oil inlet end cylinder barrel and a non-oil inlet end cylinder barrel to form an oil inlet end hydraulic cylinder and a non-oil inlet end hydraulic cylinder; a large cavity oil port and a small cavity oil port which are respectively communicated with a large cavity and a small cavity of the oil inlet end cylinder barrel are respectively formed in the oil inlet end piston rod; a large cavity oil pipe is communicated with the large cavities of the oil inlet end cylinder barrel and the non-oil inlet cylinder barrel; and a small cavity oil pipe is communicated with the small cavities of the oil inlet end cylinder barrel and the non-oil inlet cylinder barrel. According to the combined type hydraulic cylinder with the floating cylinder barrel, the design of the hydraulic oil cylinders is optimized, so that two hydraulic oil cylinders with relatively small travels are connected in series with each other; by a mode of feeding oil through cylinder rods, the combined type hydraulic cylinder can telescopically move in two directions; an oil cylinder telescopic amount with relatively high amplitude is realized when a mounting size is relatively small; and therefore, a telescopic amount which is one time higher than that of the common hydraulic cylinder can be realized.

The invention discloses a full-automatic stacking machine. The full-automatic stacking machine comprises an upper rail, a lower rail, upper guide wheels, a lower guide wheel, a lifting table, a telescopic fork and a control box; the upper guide wheels are in fit connection with the upper rail, one end of each upper guide wheel is arranged in the upper rail, and the other ends of the upper guide wheels are connected with an aluminum guide rail; one end of the lifting table is in fit connection with the aluminum guide rail, and the other end of the lifting table is connected with the upper guide wheels through a belt wheel and a lifting belt; the telescopic fork is arranged on the lifting table, a detector is arranged on one side of the telescopic fork, and a lower cross beam is fixedly connected to the lower end of the lifting table; the lower cross beam is connected with the lower rail through the lower guide wheel; and the full-automatic stacking machine is simple in structural principle, rapid warehouse entering and taking of storage boxes can be achieved, and the automation degree is high.

The invention discloses a multi-stage sliding telescopic arm. The multi-stage sliding telescopic arm comprises a basic arm and N telescopic arms, wherein the N telescopic arms comprise a first-stage telescopic arm, a second-stage telescopic arm, and the like, and an Nth-stage telescopic arm; the first-stage telescopic arm is arranged on the basic arm; the second-stage telescopic arm is nested and slides in the first-stage telescopic arm; the Nth-stage telescopic arm is nested and slides in the (N-1)th-stage telescopic arm; sliding assemblies are arranged between the basic arm and the first-stage telescopic arm, between the first-stage telescopic arm and the second-stage telescopic arm and between the (N-1)th-stage telescopic arm and the Nth-stage telescopic arm; and synchronization assemblies are arranged between the first-stage telescopic arm and the second-stage telescopic arm and between the (N-1)th-stage telescopic arm and the Nth-stage telescopic arm. The multi-stage sliding telescopic arm has the advantages that the effective telescopic distance is long, and the number of stages of the telescopic arms can be increased according to needs.

The invention discloses a solar photovoltaic heat insulation outer wall system which comprises an outer wall body, a photovoltaic component and a telescopic component. The telescopic component comprises a first telescopic mechanism and a second telescopic mechanism, the upper end and the lower end of the inner side of the photovoltaic component are connected with the outer wall body respectively through the first telescopic mechanism and the second telescopic mechanism, and the outer wall body comprises a vacuum inorganic heat insulation plate layer, a plastering mortar layer and a reinforced net layer. The outer wall system is novel in structure, angles of the photovoltaic component are freely adjusted through the telescopic component, utilization ratio of solar energy is increased, and indoor heat insulation effects are improved.

The invention discloses a new type of special vehicle for medical examination, which comprises a front and a compartment, the compartment is fixed at the rear end of the front, and the compartment is provided with a public medical examination compartment, a first movable compartment and a second movable compartment, the first movable compartment and the second movable compartment It is installed inside the public physical examination box and can extend to both sides of the public physical examination box. There are climbing ladders at both ends of the movable box. The distinction increases the efficiency of physical examination and facilitates popularization.

The invention relates to a high-speed photographing device and a telescopic mechanism. The telescopic mechanism comprises a base assembly, a first-stage transmission module and a second-stage transmission module. The base assembly comprises a base, a driving piece fixed to the base and a first synchronous belt module in driving connection with the driving piece. The first-stage transmission module comprises a first support and a second synchronous belt module movably arranged on the first support, the first support is connected with the first synchronous belt module, the second synchronous belt module comprises a first side and a second side which are opposite in movement direction, the first side and the base are connected with the second-stage transmission module, and the second-stage transmission module comprises a second support. The second support is connected with the second side. According to the telescopic mechanism, a longer telescopic distance is achieved in a limited space, the space utilization rate is effectively increased, and the overall size of the telescopic mechanism is reduced.

The invention discloses an efficient diffusion furnace for silicon wafers. The diffusion furnace comprises a furnace body and a furnace door. A quartz boat is arranged in the furnace body, a gas inlet is formed in the upper end of the furnace body and connected with a gas inlet pipe, a gas outlet is formed in the bottom of the furnace body and connected with a tail gas exhaust pipe, the furnace door is arranged on the opening of the furnace body, a rotary shaft is arranged in the center of the furnace door, protrusions are fixed to the outer wall of the furnace body, two windows symmetric about the rotary shaft are formed in the furnace door, quartz stop dogs matched with the windows are arranged on the opening of the furnace body, a U-shaped support is fixed to the outer side of the furnace body and provided with a first telescopic cylinder, a second telescopic cylinder and a third telescopic cylinder, the first telescopic cylinder and the second telescopic cylinder are attached to the protrusions respectively, and the third telescopic cylinder is connected with a quartz push-pull rod. The efficient diffusion furnace is simple in structure principle and convenient to operate, the furnace door can be automatically opened and closed, the quartz boat can enter and go out of the furnace automatically, the automation degree is high, and work efficiency is improved.

The invention discloses an anchor chain hanging rack comprising a base. Universal wheels are arranged at the bottom of the base. A first column, a second column, a first telescopic mechanism and a second telescopic mechanism are arranged at an upper end of the base. A lateral sliding rail is arranged on the base. A first slider is arranged at the bottom of the first telescopic mechanism and in sliding connection with the lateral sliding rail. A second slider is arranged at the bottom of the second telescopic mechanism and in sliding connection with the lateral sliding rail. The first column is connected to the first telescopic mechanism by means of a first rotating bearing, and the second column is connected to the second telescopic mechanism by means of a second rotating bearing. A plurality of first hanging rods are arranged on the outer walls of two sides of the first column, respectively. A plurality of second hanging rods are arranged on the outer walls of two sides of the second column. The anchor chain hanging rack is simple in structure, convenient to use, and high in working efficiency; the employed telescopic mechanisms are good in stability, and the workload for a worker can be reduced.

The invention discloses an emergency alarm device of an intelligent transportation vehicle. When the intelligent transportation vehicle has a crash accident or a vehicle door cannot be opened in an emergency, a camera device of the emergency alarm device can record a video of a situation in the vehicle and can transmit video information to an intelligent traffic control center through a wireless transmission module; a luminous alarm and an alarm bell send out alarm information; during alarming, the camera device can perform lifting motion under the driving of a telescopic driving component; furthermore, the camera device and the luminous alarm can rotate around a telescopic axis of the telescopic driving component. By arrangement of a first anticollision device, a second anticollision device and an elastic bag body, an alarm body can be protected in the emergency of the vehicle, so as to further guarantee the service life of the alarm body; furthermore, the emergency alarm device is simple in structure and convenient to popularize.

The invention discloses a big full wheel disc die device which comprises an upper fixing base and a lower base. The upper fixing base and the lower base are connected through a guide rod, a fixed die is arranged on the lower base, a rotating shaft is arranged in the center of the bottom of the fixed die and is connected with a stepping motor arranged on the lower base, a movable die is arranged at the lower end of the upper fixing base and is connected with a compression assembly arranged above the upper fixing base, a workpiece fixing table is arranged in the center of the fixed die, cutting sliding blocks are arranged on the periphery of the upper end face of the fixed die in a sliding manner, and a cutting knife is arranged at the front end of each cutting sliding block. The big full wheel disc die device is simple in structure, high in working efficiency, capable of achieving big full wheel disc quick machining and good in machining quality.

The invention provides an auxiliary clamping medical instrument for a steel bar piercing injury operation. The instrument comprises a main frame structure, side fixing structures are arranged at the two ends of the main frame structure, and a bracket structure arranged in a hinging connection mode is installed in each of the side fixing structures on the two sides; and an installation plate structure is slidably installed at the upper end of the bracket structure, and a clamping structure is slidably fixed to the installation plate structure. The bed body of the main frame structure is integrally a box-shaped groove, cushion blocks can be effectively installed in a bottom groove in the bed body groove for use, the bed body groove can clamp the cushion blocks, and therefore the cushion blocks can be installed on the bed body more conveniently. Three sections of telescopic columns which are arranged in the cushion block and connected in a sleeved mode can effectively increase the telescopic distance of the telescopic columns. The cushion blocks arranged side by side can achieve the effect of a common mattress, a penetrating steel bar can penetrate through the space between every twoadjacent cushion blocks, a patient does not need to lie on one side to avoid the steel bar, and a certain effect of fixing the steel bar is achieved at the same time.