218results about How to "Improve lifting stability" patented technology

The invention discloses a single control double-layer hollow glass built-in shutter. The single control double-layer hollow glass built-in shutter comprises a rectangular window body, an inner frame and a tensioning mechanism, wherein the inner frame is arranged in the rectangular window body; a left frame cavity is formed in the left side of the inner frame; a right frame cavity is formed in theright side of the inner frame; an upper frame cavity is formed in the upper part of the inner frame; a space between the left side and the right side of the inner frame is a shutter cavity; a shuttersheet turning and shutter lifting control mechanism is arranged in the right frame cavity; a manual operation control mechanism is actuated with the shutter sheet turning and shutter lifting control mechanism in a manner of being separated from front glass; a shutter is arranged in the shutter cavity; a turning shaft driving mechanism is arranged between the right end of the upper frame cavity andthe upper part of the right frame cavity; the tensioning mechanism is fixed in the right frame cavity. The single control double-layer hollow glass built-in shutter has the characteristics that the shutter sheet turning and shutter lifting control mechanism comprises a turning shaft and a pulling rope winding device; the pulling rope winding device comprises first and second rotary shaft head supporting seats of a pulling rope winding roller, first and second rotary shaft heads of the pulling rope winding roller and the pulling rope winding roller. A shutter pulling rope is prevented from being damaged due to friction; the single control double-layer hollow glass built-in shutter has the advantages of good lifting stability, labor saving in operation and convenience in production and assembly.

The invention discloses a single control energy-saving multi-layer hollow glass inlaid louver. The single control energy-saving multi-layer hollow glass inlaid louver comprises a louver body; the louver body comprises a left longitudinal frame strip, a right longitudinal frame strip, an upper horizontal frame strip, a lower horizontal frame strip, inner glass, middle glass, outer glass, an inner hollow cavity partition frame, a curtain piece overturn and louver curtain lifting control mechanism a manual operation control mechanism, and a louver curtain and curtain piece overturn and louver curtain lifting mechanism. The louver is characterized by further comprising an expanding and fastening mechanism which is fixed in the right longitudinal frame strip, and is connected with an overturn shaft driving mechanism and the curtain piece overturn and louver curtain lifting control mechanism; a left longitudinal frame strip cavity covering plate is matched in a inserted mode with the left longitudinal frame strip; an upper horizontal frame strip covering plate is matched with the upper horizontal frame strip in an inserted mode; the curtain piece overturn and louver curtain lifting control mechanism comprises an overturn shaft and a pulling rope coiling device; the pulling rope coiling device comprises a first and second pulling rope coiling roll rotating shaft head bearing seats, afirst and second pulling rope coiling roll rotating shaft heads and a pulling rope coiling roll. Air impermeability and intensity of the louver body are improved; lifting is stable, the operation is easy and the driving effect to the overturning shaft is guaranteed.

The invention discloses a double layer hollow glass with built-in window shade. The double layer hollow glass with the built-in window shade comprises a rectangular window body, an inner frame, an internal control mechanism and an external control mechanism, a venetian blind and a venetian blind curtain sheet overturning and venetian blind lifting mechanism, an overturning shaft driving mechanism,a tensioning rope tensioning and guiding mechanism and a traction teeth belt first and second tensioning rope. The double layer hollow glass with the built-in window shade is characterized in that the venetian blind curtain sheet overturning and venetian blind lifting mechanism comprises an overturning shaft, a pair of rotary shaft head support seats and a pair of pulling rope winding rolls, thepair of the rotary shaft head support seats are arranged in a upper frame cavity, the pair of the pulling rope winding rolls is supported on the pair of the rotary shaft head support seats, the overturning shaft is fixed to the pair of the pulling rope winding rolls, the left and right ends of the overturning shaft stretch out of the pair of the pulling rope winding rolls and the right end of theoverturning shaft is connected with the overturning shaft driving mechanism, the upper ends of a pair of curtain sheet overturning ladder rope is winded on the pair of the pulling rope winding rolls in a sleeving mode, and the upper ends of a pair of venetian blind lifting pulling ropes is winded on the pair of the pulling rope winding rolls. Rectangular window bodies with the length noticeably greater than the height and bottom control requirements that the rectangular window bodies are installed at a high position are met.

The invention relates to a drop impact testing machine for large dangerous cargo transporting package containers. The upper ends of two support upright posts are connected with a fixed cross beam to form an n-shaped frame, and the lower ends are respectively fixed with one fixing plate. Two screw rods are respectively arranged at the inner sides of the two support upright posts, and are parallel with the two support upright posts and fixed between the fixed cross beam and the fixing plate to freely rotate. The inside surfaces of the two support upright posts are respectively fixed with a guide rail, and two slide blocks are respectively fixed at both ends of a movable cross beam and arranged on the two guide rails. The two screw rods penetrate through the through holes at both ends of the movable cross beam. Two servo motors are respectively fixed on two speed reduction boxes, and the two speed reduction boxes are respectively fixed at the lower ends of the two sides of the movable cross beam, and sleeved on the two screw rods by threads. A release device is fixed at the center of the lower end surface of the movable cross beam. A testing and controlling device is arranged in a groove of the movable cross beam. The testing machine realizes automation of the hanging / dropping complete process of the packaging piece with the weight of 20 kilograms to 2 tons, has the advantages of convenient operation, good lifting stability, low mechanical noise and high accuracy, eliminates the safety hazard caused by manual operation, and can be widely applied to testing various large-weight cargo packages.

The invention discloses a lifting table. The lifting table comprises a table plate, a base, and a lifting assembly connected with the table plate and the base and used for adjusting the height of thetable plate relative to the base; a connecting seat is connected to the base below the table plate; a pedal trainer is arranged on the connecting seat; the pedal trainer comprises a trainer shell connected to the connecting seat and a rotary shaft rotatably connected to the trainer shell; the two ends of the rotary shaft are arranged on the outer side of the trainer shell and are connected with cranks; the free end of each crank is rotatably connected with a pedal; and the pedals are used for both feet of a user to step on for a step motion. According to the lifting table, body exercise can beeffectively carried out when the user is in electronic competition, so that the feet or legs of the user can be prevented from being kept stationary or bent for a long time, and the body health of the user is facilitated.

An axle mounted on a vehicle chassis includes a central box section, a first support arm connected to a first wheel and slideably mounted inside the central box section, and a second support arm connected to a second wheel and capable of longitudinal translational movement inside the first support arm, a guiding box section fixed to the central box section, including a rectangular tube and defining an external annular volume included between the central box section and the tube, and an internal volume included inside the tube, the first support arm being housed inside the external annular volume and able to be guided by the guiding box section along a first longitudinal translational path, the second support arm being housed inside the internal volume and able to be guided by the guiding box section on a second longitudinal translational path. A vehicle equipped with such an axle is described.

The invention discloses an aircraft which comprises a controller, wherein the controller is uniformly provided with and connected with a lifting propeller 1, a lifting propeller 2, a lifting propeller 3, a lifting propeller 4, a horizontal propeller 1, a horizontal propeller 2, a horizontal propeller 3 and a horizontal propeller 4. The lifting of the aircraft mainly depends on the cooperation of the four lifting propellers, and the intelligent lifting can be realized comprehensively by individual control on each lifting propeller caused by the lifting controller, so that the lifting efficiency of the aircraft is high, and the lifting stability is good. The horizontal motion of the aircraft is achieved mainly through the cooperation of the four horizontal propellers, the operation and control technique requirements on operators are not too high, and compared with the traditional aircraft, the horizontal motion flexibility of the aircraft is improved greatly. Through the individual and cooperative control on the four lifting propellers and the four horizontal propellers of the aircraft, the flying flexibility and flying stability of the aircraft are improved.

The invention discloses a selective auxiliary lifting type storey height adjusting storage shelf and a control method thereof, and belongs to the technical field of shelves. The invention discloses anauxiliary lifting type storey height adjusting storage shelf and a control method thereof. Each layer of shelf is fixed on a rectangular frame through a layer height positioning mechanism; a shelf auxiliary lifting mechanism used for driving each shelf to do lifting motion is arranged on the rectangular frame; the combination and separation conversion of a storey height positioning mechanism anda rack on the rectangular frame is matched; a lifting driving mechanism and a lifting mechanism of the shelf auxiliary lifting mechanism are matched to drive corresponding shelf height adjustment, theheight adjustment and positioning supporting of each layer of shelf are achieved, one set of shelf auxiliary lifting mechanism can freely select each layer of shelf to conduct layer height adjustment, the structure is simpler and more compact, and the control is simpler and more convenient. Moreover, the shelves are stably supported on the rectangular frame, the bearing capacity is high, the flexible storage of goods at different heights is achieved, and good practicability is achieved.

The invention relates to a pneumatic lifting trolley. The pneumatic lifting trolley comprises a device pedestal, an air cylinder, fixed bases, a fork arm limiting sliding groove, supporting fork arms,a fork arm connecting shaft, protective covers, a roller assembly, a transmission rope and a driving motor; the fixed bases are welded at the four corners of the lower side of the device pedestal andare fixedly arranged on a fixed platform through expansion bolts; the protective covers are connected with the device pedestal through the supporting fork arms; the roller assembly is rotatably arranged between the two protective covers; the supporting fork arms adopt X-shaped structural design; and the middle of each group of supporting fork arms are rotatably connected through a rotating shaft.According to the pneumatic lifting trolley, the air cylinder is arranged at the middle position of the upper side of the device pedestal through the bolt, the front end of a push rod of the air cylinder sleeves the outer side of the fork arm connecting shaft, the connection mode of the air cylinder and the fork arm connecting shaft is rotatable connection, and the fork arm connecting shaft is driven to move through forward and backward movement of the push rod of the air cylinder, so that the supporting fork arms are controlled to perform lifting operation.

The invention provides a piston lifting mechanism and a hydraulic control device thereof. The hydraulic control device comprises a first oil way and a second oil way, the first oil way is used for communication with a rod cavity of a piston cylinder in the piston lifting mechanism, and the second oil way is used for communication with a rodless cavity of the piston cylinder in the piston lifting mechanism. The second oil way is provided with a balance valve, the balance valve is provided with two operation ports and a control oil port, the two operation ports are in butt-joint communication with the second oil way, and the control oil port is communicated with the first oil way through a hydraulic control oil way with a damping hole section. When the hydraulic control device is applied to the piston lifting mechanism, a piston moves towards the rodless cavity, namely the piston moves downwards, hydraulic oil in the rodless cavity flows out slowly due to slow and stable opening of the balance valve, the piston moves slowly under the action of a load and high-pressure oil in the rod cavity, and high lifting stability is realized.

The invention discloses an automatic deburring machine. The automatic deburring machine comprises a pedestal assembly, a work platform assembly, a power output device and a power head assembly, wherein the work platform assembly is arranged on the pedestal assembly; the power head assembly is connected with the power output device; and the power head assembly is positioned right above the work platform assembly. The automatic deburring machine can brush planes and also can brush inner holes.

The invention discloses a venetian blind lifting traction rope retracting and releasing device of an insulating glass built-in louver. The insulating glass built-in louver comprises a window body, front glass, rear glass, middle glass, an inner control mechanism, an outer control mechanism, a venetian blind, an overturning shaft drive mechanism and a traction tooth band expanding mechanism. The window body is formed by connecting a left longitudinal frame strip, a right longitudinal frame strip, an upper transverse frame strip and a lower transverse frame strip. The venetian blind lifting traction rope retracting and releasing device comprises a left traction rope winding roller bearing seat, a right traction rope winding roller bearing seat, a left traction rope winding roller, a right traction rope winding roller and an overturning shaft. The left traction rope winding roller bearing seat is arranged at the left end of the upper transverse frame strip, the right traction rope windingroller bearing seat is arranged at the right end of the upper transverse frame strip. The left traction rope winding roller is supported to the left traction rope winding roller bearing seat, and theright traction rope winding roller is supported to the right traction rope winding roller bearing seat. The right end of the overturning shaft extends to the right side of the right traction rope winding roller bearing seat, and is connected with the overturning shaft drive mechanism. The venetian blind is connected with the left and right traction rope winding rollers. The service life of a traction rope is long; and lifting stability is good and operation is easy.

The invention discloses an intelligent bookshelf book grabbing device based on shear type lifting, and belongs to the field of intelligent bookshelves. The intelligent bookshelf book grabbing device is characterized in that a book grabbing mechanical arm is mounted at the upper part of a shear type telescopic mechanism in a sliding manner through a lifting sliding seat; the shear type telescopic mechanism drives the book grabbing mechanical arm to do lifting motion by utilizing a traction pull rope; the book grabbing mechanical arm can further ascend and descend relative to the upper portion of the shear type telescopic mechanism; the lifting motion stroke of the book grabbing mechanical arm is further expanded on the telescopic motion stroke of the shear type telescopic mechanism, it is guaranteed that the book grabbing mechanical arm can grab books on the bottom layer of an intelligent book shelf, and the highest ascending position of the book grabbing mechanical arm is increased; moreover, the shear type telescopic mechanism as short as possible is used for achieving lifting movement with a larger stroke, the lifting stability and reliability of the shear type telescopic mechanism are further improved, and the book grabbing device is simpler and more compact in structure and convenient to control intelligently.

The invention relates to a technology of a waist bridge structure, in particular to the waist bridge structure which can promote the lifting and dropping range and the lifting and dropping stability in a limited range and an operating table of application thereof. The waist bridge structure comprises a dynamic cylinder device, a first connecting base, a second connecting base, a waist bridge fixing base and two U-shaped necks which are symmetrically arranged on the waist bridge fixing base; the first connecting base is connected with the second connecting base through a rotating shaft, and the two U-shaped necks are connected through a stationary shaft. According to the waist bridge structure and the operating table thereof, by means of lifting and dropping of two waist bridge plates and up-and-down movement of guide bearings in the U-shaped necks, the lifting and dropping stability and the lifting and dropping range are greatly improved; meanwhile, by means of the two waist bridge plates, during the operation, medical workers can perform the operation conveniently, the accuracy of the operation is greatly improved, and the time is saved.

The invention discloses an electric lifting media wall which comprises a base, a lifting assembly, a supporting frame and a wall cover body. The lifting assembly comprises at least one group of lifting stand columns and a driving mechanism for driving the lifting stand columns to ascend or descend; the lower ends of the lifting stand columns are connected with the base; the supporting frame is used for being connected with a display mounting frame, is connected onto the lifting stand columns, and ascends or descends synchronously along with the lifting stand columns; the wall cover body coversa table leg component and the outer side of the supporting frame; the wall cover body is connected with the lifting stand columns or the supporting frame, and ascends or descends synchronously alongwith the lifting stand columns; the outer surfaces of two opposite side plates of the wall cover body are of plane structures; and at least one group of connecting holes are formed in at least one outer side surface, and are used for allowing connecting pieces connected with the display mounting frame to penetrate through the wall cover body from outside to inside and be connected with the supporting frame in the wall cover body. The electric lifting media wall has the advantages that the height can be adjusted, the bearing capacity is strong, the function is diversified, the assembly and thedisassembly are convenient, the later maintenance is facilitated, and the packing size is small.

The invention provides a textile cloth winding device convenient to buffer. The device comprises a base, wherein a controller is arranged at the left side of the bottom of the base in a bolted mode, aspeed regulation button is arranged at the right side of the obverse side of the controller, a wind-up frame is arranged at the left side of the top of the base in a bolted mode, a fixed frame is arranged at the center of the reverse side of the wind-up frame in a bolted mode, wind-up mechanisms are arranged in an inner cavity of the fixed frame and an inner cavity of the wind-up frame respectively, and a buffer mechanism is arranged on the top of the wind-up frame. According to the textile cloth winding device, a stepping motor provides driving power, a gear motor regulates the rotational speed of a wind-up roller, and therefore the winding effect of cloth by the wind-up roller is enhanced; buffer rotation is performed on the surface of the cloth which becomes thicker gradually through abuffer frame and a buffer roller; and next, through structural cooperation of a first sliding column, a fixed plate, a sliding cylinder, a movable column, a moving plate, a first sliding sleeve, a supporting plate and an elastic rope, elastic buffer potential energy can be provided for the buffer roller, and therefore the winding precision of the cloth on the surface of the wind-up roller is further enhanced.

The invention discloses a levelling device for a large shell type component. A pedestal is welded above a supporting seat; a cushion block is positioned above the supporting seat; a thrust oblique body is positioned in a groove of the pedestal and is provided with a horizontal hole; the surface of the cushion block is provided with a lower semicircular groove; a power screw sequentially passes through the lower semicircular groove of the cushion block and the horizontal hole of the thrust oblique body; a lifting oblique body is positioned above the thrust oblique body; a rubber cushion is fixedly arranged at the upper surface of the lifting oblique body through a bolt II; a pressing plate passes through the rubber cushion body and is used for covering the upper portion of the pedestal; an upper semicircular groove of the pressing plate is capable of covering the upper portion of the power screw. According to the levelling device disclosed by the invention, a lifting platform pushed by a screw is designed, and the screw is applied with a torque by two mutually-matched oblique bodies so that stable lifting of the lifting platform can be realized. The levelling device is capable of satisfying levelling of a large shell, also small in input torque, convenient to operate, good in lifting stability, and capable of improving the levelling efficiency for the large shell and shortening the working time for levelling the shell.

The invention discloses a roll-weakening device of a crane. The roll-weakening device comprises a trolley, wherein the middle part of the lower end of the trolley is welded with an outer barrel; a middle barrel is connected in the outer barrel in a sleeving mode; an inner barrel is connected in the middle barrel in the sleeving mode; a groove A is formed in the left side of the lower end in the outer barrel; the upper part of the left side surface of the middle barrel is fixedly connected with a bulge A matched with the groove A; a groove B is formed in the left side of the lower end in the middle barrel; the upper part of the left side surface of the inner barrel is fixedly connected with a bulge B matched with the groove B; a motor, a speed reducer and a winding drum mechanism are mounted at the upper end of the trolley; the output shaft of the motor is connected with a high-speed shaft of the speed reducer through a shaft coupler; the winding drum mechanism is composed of winding drums which are symmetrically arranged at the two sides of the speed reducer; the two ends of each winding drum are separately mounted on the trolley through bearing bases; steel wire ropes are mountedon the winding drums; the inner barrel and the lower ends of the steel wire ropes are fixedly connected with a fixed plate; and the lower end of the fixed plate is fixedly connected with a hanger. Theroll-weakening device has the advantages of being simple and convenient to operate, capable of reducing hanger swing, and being good in roll-weakening effect, high in stability and high in safety.

A planar controllable slippage type wood forklift with a multi-unit connection rod driving function comprises a multi-unit connection rod driving mechanism, a movable arm lifting mechanism, a fork bucket control mechanism and the like. Under control of a computer, the multi-unit connection rod driving mechanism achieves driving of multiple small-power motors and high-power and high-torque power output, and meets the power requirement of high-load operation of the slippage type wood forklift. A hydraulic cylinder is applied to the configuration design of the wood forklift as a connection rod on the basis of the Pascal principle, the problem that in the prior art, stress on two driving chains for lifting a movable arm is unbalanced is effectively solved, and the bearing stability is improved. The slippage type wood forklift not only has the characteristics of being high in transmission efficiency, high in response speed, high in motion precision, good in controllability, capable of saving energy, environmentally friendly and the like as a controllable mechanism, but also has better bearing performance and shock resistance through introduction of the multi-unit connection rod driving mechanism and a hydraulic element, can achieve the overload protection function easily and has great engineering application prospects and development potential.

The invention discloses a jack for a small automobile and belongs to the field of automobile auxiliary equipment. The jack comprises a supporting seat, a base, a pair of upper arms and a pair of lower arms. One end of each upper arm is installed on the supporting seat, the other end of each upper arm is connected with one end of each lower arm through two hinged shafts, the other end of each lower arm is installed on the base, and a screw rod penetrates between the two hinged shafts. The inner side of at least one hinged shaft is connected with a lubricating oil sleeve, an annular oil storage ring adheres to an inner side wall of the lubricating oil sleeve, and the screw rod penetrates the oil storage ring and the lubricating oil sleeve. Through the matching of the oil storage ring and the lubricating oil sleeve, the screw rod and the hinged shafts can be continuously lubricated, the abrasion between the screw rod and the hinged shafts is reduced, the lifting stability is improved; meanwhile, the rusting caused by no use for a long time is avoided; the oil storage ring can lock lubricating oil while providing lubricating oil and can supply the lubricating oil for a long time; and the lubricating oil sleeve can reduce the volatilization of the lubricating oil.

The invention discloses a jack with the bolt angle adjusting function. The jack comprises a turnover adjusting plate, a hydraulic pump and a hydraulic cylinder. The hydraulic pump and the hydraulic cylinder are vertically arranged on the turnover adjusting plate. A fixed seat is arranged below the turnover adjusting plate. A pin shaft is arranged between the fixed seat and one end of the turnover adjusting plate for hinge joint, the other end of the turnover adjusting plate is provided with two open grooves, and the fixed seat is provided with two bolts stretching above the open grooves respectively. In this way, by means of the jack with the bolt angle adjusting function, through the cooperation of a first nut and a second nut, the height, stretching above the open grooves, of the bolts can be changed, the included angle between the turnover adjusting plate and the fixed seat is changed accordingly, the hoisting angle is adjusted, operation is flexible, and hoisting stability is good.

The invention discloses a book management device integrating book recycling and donation, and a management method thereof, and belongs to the field of intelligent book management systems. The device comprises a recycling bookshelf assembly, a book grabbing and conveying assembly and a book recycling and recognizing assembly, wherein the book recycling and recognizing assembly comprises an outer frame, a book conveying mechanism, a waste book transferring mechanism, a waste book temporary storage mechanism, a weighing sensor, a book scanner, a label printer and a control system. According to the invention, a book management device integrating book recycling and donation is provided; books are distinguished, recovered and donated according to values and are organically combined together, sothat automatic recovery and donation management of waste books are facilitated, great convenience is brought to recovery and donation of books which are not used by students, the book purchasing costof next students is reduced, and papermaking materials are saved; and the structural design is reasonable and compact, the book transferring action is stable and reliable, and the books are not proneto being damaged in the grabbing and transferring process.

The invention discloses an ultrahigh-speed horizontal band sawing machine. The ultrahigh-speed horizontal band sawing machine comprises a base, a vertical column, a machine table and a sawing frame and further comprises a servo driving system and a sawing frame lifting balance system. The servo driving system comprises a servo motor, a decelerator and a ball lead screw. The decelerator is mountedon the vertical column, the ball lead screw is connected with the sawing frame, and the servo motor drives the sawing frame to rise and fall by driving the ball lead screw to rotate. The sawing framelifting balance system is used for reducing the axial linear load of the servo motor and provided with symmetrically arranged oil cylinders, a hose and an energy storage device. The lower ends of theoil cylinders are fixed to the base, the upper ends of the oil cylinders are connected with the sawing frame, and the energy storage device is connected with the two oil cylinders through the hose. The sawing frame is inclined forwards relative to the vertical column to be arranged. According to the ultrahigh-speed horizontal band sawing machine, the design that the rear inclination angle of a traditional sawing frame is 35 degrees is changed, the design that the front inclination angle is 12 degrees is adopted, thus the overall gravity center of the sawing frame and the motion axis are basically overlapped, the mechanical state of lifting motion of the sawing frame in the sawing process is changed, moment of rotation in the Y-axis direction of the sawing frame is eliminated, friction resistance between a sliding sleeve and the vertical column during lifting motion of the sawing frame is reduced, and the service life of the machine is prolonged.

The invention discloses a movable crane with the height capable of being adjusted conveniently. The movable crane comprises a stand column, a jacking rod is arranged at the bottom of the stand column in an embedded mode, protrusions are connected to the lower portion of the stand column, a support beam is connected to the jacking rod, a circular ring is arranged in the middle of the support beam, the two sides of the lower portion of the support beam are each provided with connecting blocks which are connected to a walking frame, an annular protrusion is arranged on the upper portion of the stand column, a gearbox is connected to the upper end of the annular protrusion, a telescopic rod is further connected to the left side of the gearbox, a cantilever beam is connected to the other end of the telescopic rod, a counterweight body is arranged on the left side of the lower portion of the cantilever beam, a support table is arranged on the top of the stand column, reinforcing plates are arranged on the outer sides of the support table, and a hydraulic support is arranged on the support table and comprises hydraulic cylinders and lower supports. The movable crane with the height capable of being adjusted conveniently has the advantages of being high in structural strength, large in bearing capacity, novel in design, convenient to use, convenient to reverse, safe and reliable.

The invention discloses an aerated concrete block separator. The aerated concrete block separator comprises a stand column; a slide rod is fixed at the bottom end of a cross beam; a rotating motor ismounted at the upper end of the cross beam; the end, far from the cross beam, of a steel wire rope is connected with a lifting frame; an upper clamping beam is arranged under the lifting frame; a first clamping oil cylinder is arranged on the side, far from the stand column, of the upper clamping beam; the bottom end of the upper clamping beam is connected with a jacking oil cylinder; the lower end of the jacking oil cylinder is connected with a lower clamping beam; and a second clamping oil cylinder is arranged on the side, far from the stand column, of the lower clamping beam. The rotating motor drives the lifting frame to move up and down; upper and lower layers of blocks are clamped through the first clamping oil cylinder and the second clamping oil cylinder; the jacking oil cylinder pushes an upper layer of clamping parts to ascend to realize the surface separation of upper and lower layers of blocks, so that the working efficiency is high, and the labor intensity is reduced; andthrough sliding of the upper clamping beam and the lower clamping beam on the surface of the slide rod, the shaking phenomenon during lifting of the separator is prevented.

The invention provides a remote teaching display device based on Internet education. The remote teaching display device comprises mounting bases, expansion bolts, a threaded screw rod, a sliding block, a turntable, a frame, a positioning seat, a guide rod, a right protective plate and a driving bevel gear, wherein the mounting bases are symmetrically welded to the left and right end faces of a fixed base; the expansion bolts are inserted into the mounting bases; the lower end surface of the fixed base has a round frame; the positioning seat is mounted on the lower end surface of the frame; thesliding block is installed on the lower sides of the left end face of the frame; the annular side face in the sliding block is engaged with the threaded lead screw; the driving bevel gear is mountedon the lower side in the right protective plate. By means of the design, the problems that the height of an original display device is inconvenient to adjust and the practicability is poor are solved,and the structure is reasonable, and the display device has the remote teaching function, and the height of the display device can be adjusted conveniently.

The invention provides hydraulic lift type mortar transfer equipment. The hydraulic lift type mortar transfer equipment comprises a transfer tank, sleeves, mechanical supporting legs, hydraulic oil cylinders, supporting leg base plates, a hollow pipeline, an L-shaped discharging pipeline, an electric push rod, a fixed tank body and a telescopic plate, wherein the hydraulic oil cylinders are separately installed at the outer ends of the transfer tank; each supporting leg base plate is arranged at the lower end of the corresponding hydraulic oil cylinder and is arranged at the internal bottom end of the corresponding mechanical supporting leg; and each sleeve is installed at the upper end of the corresponding mechanical supporting leg and is fixed to the outer end of the corresponding hydraulic oil cylinder. The hydraulic lift type mortar transfer equipment provided by the invention can implement a lifting action; the electric push rod is arranged at the right wall inside the tank body;the telescopic plate is arranged at the left end of the electric push rod and is installed on the L-shaped discharging pipeline; the hollow pipeline is installed at the left end of the L-shaped discharging pipeline; so the hydraulic lift type mortar transfer equipment can stretch and retract. The hydraulic lift type mortar transfer equipment provided by the invention is convenient to use and operate, can implement the lifting action, can stretch and retract, and is good in stability and high in reliability.

The invention discloses a lifting building machine, and belongs to the technical field of building machinery. The machine comprises a lifting box for lifting and carrying and a plurality of connecting mechanisms, wherein the plurality of modularly assembled connecting mechanisms for improving the assembling efficiency of the lifting machine are mounted in an external stable frame, a toothed plate is spliced through the plurality of connecting mechanisms, and the toothed plate is engaged with a driving gear. According to the invention, through a designed purging assembly, when the driving mechanism drives a main shaft of a reduction gear box to rotate, a cam can extrude and drive an elastic air bag on one side to compress and blow air so as to realize air blowing and air injection purging of a purging nozzle on one side, and meanwhile, lubricating oil can be sprayed through one oil tank, and therefore, the self-cleaning and lubricating capacity to the toothed plate in the lifting process of the lifting box can be achieved, the wear-resisting and dust-proof capacity of the toothed plate can be effectively improved, the maintenance period of the toothed plate and a driven gear is effectively prolonged, and the use economic benefits after assembly are increased.