54results about How to "Easy leveling" patented technology

The invention relates to a radar digital platform leveling device and method. The leveling method comprises the following steps of sensing the attitude of a vehicle body and a coordinate conversion digital platform by utilizing an attitude angle sensing system to establish a digital platform; calculating the value of an antenna azimuth code salver, the value of an antenna pitch code salver and a transverse rolling angle formed between an antenna array surface X axis and a horizontal plane which are parallel to each other during the working process of a radar; and driving an antenna to the appointed position, the pitch position and the antenna X axis attitude position to realize the radar leveling function. The leveling device comprises an attitude angle sensing system, an antenna drive control system and an antenna leveling mechanism. The attitude angle sensing system is used for sensing a transverse inclination angle and a longitudinal inclination angle of the prior vehicle body as well as an included angle formed between a reference axis of the longitudinal inclination attitude angle and the north direction; the antenna drive control system is used for converting the antenna to the appointed direction through the azimuth code salver and an azimuth driving mechanism; a supporting back frame of the antenna is pushed to rotate by a pitch driving mechanism and the pitch code salver, so that the antenna reaches an appointed pitch angle; the antenna leveling mechanism is used for pushing the antenna to carry out one-dimensional rotation around a ball bearing, so that an X axisin an antenna array surface rectangular coordinate system is parallel to the horizontal plane, thereby the leveling of the radar is finished.

A collet portion including a cup-shaped collet is fixed to an upper end of a vertically movable body vertically movable relative to a connecting portion to which upper ends of the legs of a tripod assembly are pivotally coupled. The collet is flexible and is formed with plural slits extending radially. The collet receives a semispherical bowl leveler as making contact with a semispherical surface of the bowl leveler at a cup-shaped inside surface thereof. The bowl leveler is combined with the collet portion by means of a bolt and is free to tilt back / forth and sideways as guided by the collet. An upper end portion of the vertically movable body is provided with a collar at place outside the collet, the collar vertically movable relative to the vertically movable body. The collar includes an abutment portion on an inside surface thereof, the abutment portion capable of being abutted against an outside surface of the collet.

The invention discloses an automatic paver leveling control system and an automatic paver leveling control method. The control system comprises a central processing unit, and a leveling system, a walking system and a screed system which are respectively connected to the central processing unit, wherein the central processing unit is also connected with a leveling solenoid valve which is controlled to ascend or descend; the leveling system, the walking system and the screed system are provided with sensors for acquiring operating condition data; the central processing unit acquires the current operating condition data provided by the sensors through a communication line, refers to the corresponding relationship between the preset operating parameters and the leveling adjustment mode and determines the leveling adjustment mode corresponding to the current operating parameters. According to the control method for the system, the leveling sensitivity parameters corresponding to operating condition data are acquired in a self-adaption manner, so that the sensitivity parameters under different paving operation conditions are effectively controlled, the pavement construction quality is improved, and the operation difficulty of a paver is lowered.

A collet portion comprising a cup-shaped collet is fixed to an upper end of a vertically movable body vertically movable relative to a connecting portion to which upper ends of the legs of a tripod assembly are pivotally coupled. The collet is flexible and is formed with plural slits extending radially. The collet receives a semispherical bowl leveler as making contact with a semispherical surface of the bowl leveler at a cup-shaped inside surface thereof. The bowl leveler is combined with the collet portion by means of a bolt and is free to tilt back / forth and sideways as guided by the collet. An upper end portion of the vertically movable body is provided with a collar at place outside the collet, the collar vertically movable relative to the vertically movable body. The collar includes an abutment portion on an inside surface thereof, the abutment portion capable of being abutted against an outside surface of the collet.

The invention discloses a cutting bed frame, which comprises a first row of bracket body components, a second row of bracket body components and a plurality of cross rod components, wherein the first row of bracket body components and the second row of bracket body components are formed by parallelly connecting a plurality of bracket bodies; the first row of bracket body components and the second row of bracket body components are arranged in parallel and are connected into a whole through a plurality of cross rod components; a plurality of cross rod components are arranged in parallel and are perpendicular to the two rows of bracket body components; each cross rod component comprises a cross rod; binding faces of bracket legs of two parallel and adjacent bracket bodies are fixedly connected through a fastener; parallel side faces of the bracket legs of two parallel and adjacent bracket bodies are fixedly connected through a first connecting piece; and the first connecting piece is fixedly connected with the cross rod in the cross rod component which is arranged at the joint of the two bracket bodies. By the cutting bed frame, shell fabrics with an ultra-large format can be cut, and the invention has the characteristics that the frame is simple in structure, convenient to splice, convenient to integrally level, high in integral rigidity after being fastened and the like.

The invention discloses a deformation testing device with a wind power generator tower tube connected with a foundation and application of the deformation testing device. The device comprises a full warming high-precision dip angle sensor and a data acquiring module; the dip angle sensor and the data acquiring module are connected; when the foundation is a land draught fan foundation, in the height direction, the dip angle sensor is installed at the h position starting from the foundation top face, and h is smaller than 2 m, and the x axis and the y axis of the dip angle sensor are parallel with the radial direction and the tangential direction of a foundation connection segment tower tube correspondingly; when the foundation is an offshore draught fan foundation, the dip angle sensor is fixed below the seawater face. The testing precision and the reliability of the deformation testing device are remarkably improved; the application of the deformation testing device with the draught fan tower tube connected with the foundation in the construction period and the service period is provided; the safety monitoring index of a high-precision foundation connection segment is determined, and a basis is provided for safety evaluation of the structure; and a testing and analyzing scheme is simple, perform is more stable, installing is easy and convenient, and investment is saved.

The invention discloses a leveling device for plastic films. The leveling device comprises an operation table arranged on one side of a film blowing machine discharging port. The upper side of the operation table is sequentially provided with a supporting mechanism, a pressing mechanism and a leveling mechanism from the position close to a film blowing machine to the position away from the film blowing machine. The film blowing machine discharging port, the supporting mechanism, the pressing mechanism and the leveling mechanism are located on the same straight line. The supporting mechanism comprises two symmetrically-arranged first vertical plates, and a bearing roller is rotationally connected between the two first vertical plates through a rotation shaft. The pressing mechanism comprises two symmetrically-arranged second vertical plates, and a pressing roller is rotationally connected between the two second vertical plates through a first connecting shaft. Through the arrangement ofthe height adjustable pressing roller and the height adjustable leveling roller, the leveling device conveniently adapts to the thickness of different layer numbers of plastic films, accordingly, themultiple layers of plastic films can be conveniently subjected to leveling treatment at the same time, and the leveling efficiency is improved.

The invention provides an adaptive control method and a controller for levelling of a paver, and a paver. The adaptive control method comprises the following steps of: determining working condition data of the paver; determining an output signal of a levelling sensor corresponding to the working condition data; according to a preset rule, adaptively acquiring a levelling sensitivity parameter corresponding to the working condition data, wherein the parameter comprises a levelling dead zone section and a proportion control section; and calculating according to the levelling sensitivity parameter and the output signal of the levelling sensor, determining a duty ratio signal, and controlling a levelling ascending solenoid valve or a levelling descending solenoid valve according to the duty ratio signal. The levelling sensitivity parameter corresponding to the working condition data is adaptively acquired, and sensitivity parameters under different paving working conditions are effectively controlled, so that the pavement construction quality is improved and the operating difficulty of the paver is reduced.

The invention discloses a platform adjustment mechanism of a photocuring 3D printer, and the photocuring 3D printer. The platform adjustment mechanism comprises a base plate, a forming platform plate,a vertical moving assembly, a connecting piece and a platform adjusting assembly; a resin groove is formed in the base plate; the plane, facing the resin groove, of the forming platform plate is a forming face; the vertical moving assembly is connected with the forming platform plate and controls the forming platform plate to move in the vertical direction; the connecting piece is connected withthe vertical moving assembly and the forming platform plate; the platform adjusting assembly is arranged between the connecting piece and the forming platform plate, used for adjusting the forming platform plate to be parallel to the bottom face of the resin groove, and comprises a positioning ball head, a positioning compression piece, a fastening piece and a connecting rod, the side face, facingthe forming platform plate, of the connecting piece is provided with a first groove part, and the positioning ball head and the positioning compression piece are both arranged in the first groove part; and the positioning compression piece sleeves the positioning ball head, the connecting rod is connected with the positioning ball head and the forming platform plate, a through hole is formed in the connecting piece, and the fastening piece penetrates through the through hole to compress the positioning compression piece so as to compress the positioning ball head.

The invention relates to a wind driven generator tower cylinder, in particular relates to a splicing flange leveling device of a wind driven generator tower cylinder. The splicing flange leveling device comprises a stand (1), a hydraulic jack (6) and at least two supporting members (2). A splicing flange (4) is positioned among the hydraulic jack (6) and the supporting members (2). The stand (1) comprises an upright post (101), an upper crossbeam (102) and a lower crossbeam (103), and the upper crossbeam (102) and the lower crossbeam (103) are both fixedly connected with the upright post (101). The supporting members (2) are positioned on the lower crossbeam (103) and positioned at both sides of an axis (3) of the splicing flange leveling device. The hydraulic jack (6) is positioned between the splicing flange (4) and the upper crossbeam (102). With the adoption of the splicing flange leveling device, the structure is simple, the leveling operation is convenient, the leveling effect is good, and the quality of a leveled splicing flange is ensured.

The invention provides a mask and frame assembly of a mask tensioning machine for a deposition process. The mask and frame assembly comprises a frame and a mask, bumps are arranged on the peripheral edge of the frame, and the mask is assembled on the frame and is jacked by the bumps of the frame. The mask and frame assembly has the advantages that the mask is jacked by the bumps of the frame, the surface of the mask is flatly pressed by a roller so as to be easily flattened, accordingly, crinkling of the mask is prevented, and a shadow effect caused by crinkling of the mask is avoided.

The invention discloses a steel structure face plate tailor welding leveling device and relates to the technical field of steel structure work. The steel structure face plate tailor welding leveling device is mainly used for solving the problems that in an existing steel structure face plate tailor welding process, the workload is large, the loss is high, and the efficiency is low. The steel structure face plate tailor welding leveling device mainly comprises three parts of a prying rod, a supporting point connecting plate and a rotary force application mechanism. A pressing head is arranged at one end of the prying rod, a casing pipe is arranged at the other end of the prying rod, and a prying supporting point is arranged on the side, close to the pressing head, of the middle of the prying rod. By means of the steel structure face plate tailor welding leveling device, provisional construction measures can be greatly reduced, the welding, cutting-off and cleaning polishing workload ofmaterials used in provisional measures can be reduced, the steel structure face plate tailor welding leveling efficiency can be improved, production cost can be reduced, and spicing quality can be ensured.

The invention discloses a steel plate leveling device, and relates to the technical field of steel plate processing. According to the technical scheme, the key point is that the steel plate leveling device comprises a base, wherein two cushion plates are arranged on the base in parallel; a supporting frame is further arranged on the base; a hydraulic cylinder for jacking the steel plate to level is arranged on the supporting frame; distances from the axis of the piston rod of the hydraulic cylinder to the two cushion plates are equal; a regulating assembly for regulating the position of the steel plate is further arranged on the base; the regulating assembly is positioned at the outer sides of the two cushion plates for moving the steel plate; the regulating assembly comprises a regulatingbase which is connected on the base in a sliding mode, and a clamping mechanism which is arranged on the regulating base for clamping a steel plate; the upper end surface of the regulating base is flush to the upper end surfaces of the two cushion plates; and the sliding direction of the regulating base is in the distribution direction of the two cushion plates. The regulating base and the clamping mechanism are arranged, and the regulating base moves to drive the steel plate to move, so that the position regulation of the steel plate is more convenient.

The invention discloses a punching machine with a damping function and for bearing production. The punching machine comprises a punching head, electric lifting rods, a punching platform, an adjustingmechanism and a supporting base, the upper end face of the punching platform is fixedly provided with the punching head through a fixing support, four sets of sleeves are vertically and fixedly weldedto the four corners of the bottom end face of the punching platform, the bottom ends of the sleeves are open, and the electric lifting rods are arranged in the sleeves; the top ends of the electric lifting rods are fixedly connected with the bottom end face of the punching platform, rollers are fixedly installed at the bottom ends of the electric lifting rods, and the horizontal supporting base is arranged below the punching platform; a plurality of sets of fixing sliding rods are arranged on the supporting base; and the fixed sliding rods are connected with the bottom end face of the punching platform through the adjusting mechanism. The punching machine with the damping function and for bearing production can be used for damping the punching process, can be used for horizontally adjusting the punching platform and is suitable for being widely used and popularized.

The invention discloses leveling and packaging equipment applied to textile production, and particularly relates to the technical field of textile production equipment.The leveling and packaging equipment is provided with a steam leveling chamber, steam reaches an upper steam pipe and a lower steam pipe, steam on the surface of textile fabric is soaked through a plurality of steam outlet holes formed in parallel, and it is guaranteed that the surface of the textile fabric is softened; the textile fabric leveling device is simple in structure and convenient to use, leveling treatment of textile fabric is facilitated, the driven textile fabric is leveled through the upper leveling roller and the lower leveling roller, telescopic deformation is generated on the top of an inner cavity of a mounting base through a telescopic rod, the leveling rollers in a movable base have elasticity when the textile fabric is leveled, and the leveling effect is better; the winding roller is pulled by the transverse moving rail to be at the position where the winding roller is transmitted to the conveying belt, the winding roller is conveyed to a packaging area through the conveying belt, and transferring of the winding roller is achieved; the textile fabric is arranged in a z shape, the distance between the movable roller and the fixed roller is adjusted through the second electric push rod, the textile fabric can be tensioned, and the leveling quality of the textile fabric is improved.

The invention discloses a large structural member sling system and a hoisting method. The sling system comprises at least one group of sling components, wherein each group of the sling components comprises two annular lifting ropes, and each lifting rope comprises a plurality of wires, a lifting hook and four lifting lugs; each wire is made from polyethylene plastic materials with ultra-high molecular weight; each lifting hook comprising four hooks; the four lifting lugs are arranged on a large structural member; when the large structural member is lifted, each annular lifting rope penetrates through two lifting lugs at one side of the large structural member; two parts, located between the two lifting lugs, of the lifting rope are hung on the two hooks, located at one side of the two corresponding lifting lugs, of the lifting hook separately. Compared with an existing hoisting method that steel wire ropes are directly wound the lifting hook, the hoisting method that annular steel wire ropes are directly hung on the lifting hook, and the hoisting method that the steel wire ropes are used for hoisting after the lifting hook is used for suspension aided by horizontal slings, the sling system has the advantages of easy hoisting, adjustment and leveling, and can be used for providing stable tensile force for the large structural member; and the hoisting stability and the hoisting efficiency are improved.

The invention discloses an electrochromic fluid-based mountain topography surveying and mapping device for data information collection, which comprises a base plate, a rotating assembly, a clamping mechanism, surveying and mapping equipment, an auxiliary supporting mechanism and an electrochromic fluid fitting and stabilizing mechanism, and is characterized in that the rotating assembly is arranged on the top wall of the base plate; the rotating assembly is arranged on the base plate, the clamping mechanism is arranged on the rotating assembly and above the rotating assembly, the surveying and mapping equipment is arranged on the clamping mechanism, the auxiliary supporting mechanism is arranged on the bottom wall of the base plate, and the electrochromic fluid attaching and stabilizing mechanism is arranged on the bottom wall of the base plate. The invention belongs to the technical field of mountain topography surveying and mapping, and particularly relates to a mountain topography surveying and mapping device for data information collection based on electrochromic fluid. The mountain topography surveying and mapping device is anti-blowing down, stable to place, good in fixing effect and convenient to level and adjust.

The invention relates to a combined device for leveling and alignment of equipment. The combined device comprises a base plate, expansion bolts, an aligning and leveling plate, a connecting block, an adjusting screw, a hollow adjusting bolt, a locking nut, a gasket and a fastening bolt. Two threaded holes and at least two through holes are formed in the upper surface of the base plate, and two threaded holes are formed in the side face of the base plate. The expansion bolts penetrate the through holes in the upper surface of the base plate to fix the base plate and a factory foundation. The aligning and leveling plate is located on the upper surface of the base plate, two strip holes for leveling of the equipment are formed in the upper surface of the aligning and leveling plate and are aligned to the two threaded holes in the upper surface of the base plate respectively, and threaded holes are formed in the middle and side face of the upper surface of the aligning and leveling plate respectively. The combined device has the beneficial effects that when aligning and leveling are carried out through the structure, leveling and alignment are fast and precise in the equipment mounting process, and operation is convenient; and the labor intensity is low, leveling operation is convenient and practical, and the application range is wide.

The invention provides a leveling mechanism for wall decoration plate installation, a keel leveling assembly and an assembly type wall surface system. The leveling mechanism for wall decoration plate installation is used for adjusting the distance between a plate body and a wall, the leveling mechanism for wall decoration plate installation comprises a fixing base and an adjusting rod, the fixing base is suitable for being fixed to the wall, the adjusting rod is provided with a first end and a second end, the first end is pivoted to the plate body through a first pivot. The second end is pivoted to the fixing base through a second pivot, and the fixing base is provided with a sliding chute matched with the second pivot, so that the second end can move along the sliding chute while rotating around the second pivot. According to the leveling mechanism for wall decoration plate installation and the keel leveling assembly, the leveling operation is simple, and the leveling quality can be guaranteed. The assembly type wall surface system comprises the keel leveling assembly.

The invention provides an adaptive control method and a controller for levelling of a paver, and a paver. The adaptive control method comprises the following steps of: determining working condition data of the paver; determining an output signal of a levelling sensor corresponding to the working condition data; according to a preset rule, adaptively acquiring a levelling sensitivity parameter corresponding to the working condition data, wherein the parameter comprises a levelling dead zone section and a proportion control section; and calculating according to the levelling sensitivity parameter and the output signal of the levelling sensor, determining a duty ratio signal, and controlling a levelling ascending solenoid valve or a levelling descending solenoid valve according to the duty ratio signal. The levelling sensitivity parameter corresponding to the working condition data is adaptively acquired, and sensitivity parameters under different paving working conditions are effectively controlled, so that the pavement construction quality is improved and the operating difficulty of the paver is reduced.

The invention discloses a three-arm parallel connection type 3D printing machine which comprises a framework, wherein sliding rails are mounted on three side edges of the framework; sliding blocks are arranged on the sliding rails; three stepping motors are mounted below the sliding rails; the sliding blocks are connected with the sliding rails through synchronous belts; a spraying head bracket is arranged at the middle part of a triangular prism; the spraying head bracket is connected with the sliding blocks through connection rods; and a spraying head is arranged at the lower part of the spraying head bracket. The whole three-arm parallel connection type 3D printing machine adopts an open framework, so that leveling of a printing machine platform and extension and maintenance of the printing machine are facilitated. The printing machine has the advantages of high printing speed, low working noise, high expansibility, high printing precision and the like, and is low in cost, small-sized and convenient to assemble and disassemble.

The invention discloses an assembly type floor slab convenient to level. According to the technical scheme, the assembly type floor slab is characterized by comprising a prefabricated slab and a fixing assembly used for fixing the prefabricated slab to the ground, wherein the prefabricated slab comprises a protective surface layer and a functional layer which are connected with each other, the protective surface layer is located on the side back to the ground, and the functional layer is partially or integrally elastic; and the fixing assembly comprises a fastener, an extrusion part and a connecting part, the fastener is used for being fixedly connected with the ground, the extrusion part is used for being fixedly connected with the protective surface layer, the two ends of the connecting part are connected with the fastener and the extrusion part respectively, the length of the connecting part is smaller than the thickness of the prefabricated slab when the prefabricated slab does not deform, and the two ends of the connecting part can move oppositely. When the fastener is fixed to the ground, the extrusion part presses the prefabricated slab to the ground, and the functional layer is extruded by the protective surface layer and the ground to deform. According to the assembly type floor slab, the upper surface of the prefabricated slab can be leveled conveniently, the requirement for the construction level of constructors is low, the leveling efficiency is high, overhead treatment is not needed, and the floor height cannot be occupied.

The invention discloses a steel plate levelling machine, and relates to the technical field of steel plate machining. The essential of the technical scheme is as follows: the steel plate levelling machine comprises a base, wherein two backing plates are arranged on the base in parallel, a support frame is further erected on the base, a hydraulic cylinder used for jacking-pressing a steel plate andlevelling is arranged on the support frame, the hydraulic cylinder is connected with the support frame through an installation seat, the installation seat is connected to the support frame in a manner of sliding in the horizontal direction, a screw rod is rotationally connected to the support frame, and the screw rod is in threaded connection with the installation seat; the two backing plates areconnected to the base in a manner of sliding in the horizontal direction, the sliding direction of the backing plates and the sliding direction of the installation seat are arranged in parallel, andlead screws in threaded connection with the two backing plates are rotationally connected to the base; and two clamping seats are arranged on the base, and symmetrically distributed at the two sides of the base. The lead screws and the screw rod are arranged, and the positions of the two backing plates and the hydraulic cylinder are adjusted by rotating the lead screws and the screw rod separatelyto be aligned with deformed parts, so that movement for the steel plate is reduced, and then more convenient levelling operation is achieved.

The invention discloses a hot film sticking machine. The hot film sticking machine comprises an automatic hot film sticking machine body, a supporting base, a servo motor and movable wheels; the supporting base is fixedly mounted at the lower end of the automatic hot film sticking machine body; a threaded rod is fixedly mounted at the lower end of the supporting base; an adjusting column is connected to the lower end of the threaded rod; a positioning chassis is mounted below the adjusting column; a servo motor is fixedly mounted in the supporting base; a transmission rod is mounted at the output end of the servo motor; a center rod is fixedly mounted in the middle of a linkage gear; the end part of a traction rope is fixedly mounted at the inner end of a movable rack; the movable rack ismounted in a guide block in a penetrating mode; and a driving gear is mounted on the inner side of the movable rack. The hot film sticking machine has the advantages that the machine can be conveniently leveled when placed and used on an uneven foundation, inclination of the whole hot film sticking machine is prevented, and meanwhile, the hot film sticking machine can be conveniently pushed when the transfer position needs to be changed.

The invention discloses a road engineering pavement leveling machine, and belongs to the technical field of pavement leveling. A road engineering pavement leveling machine comprises a moving seat, a collecting groove is formed in the advancing side of the moving seat, and the advancing side of the collecting groove and the moving seat are fixedly connected with a shovel plate; a rolling shaft is rotatably arranged on the side, close to the shovel plate, in the collecting tank, and a plurality of soil breaking wheels are fixedly arranged on the rolling shaft; a plurality of leaking holes are formed in the bottom wall of the collecting tank; a rolling wheel is further rotationally arranged at the bottom of the moving base and arranged on the side, away from the rolling shaft, of the collecting groove. According to the device, the uneven position of the roadbed can be flexibly repaired and leveled in a targeted mode, the guarantee for the flatness of the roadbed is greatly enhanced, operation is easy, use is convenient, and the convenience degree is high.

The invention discloses a multifunctional tripod with an accurate leveling function. The technical scheme includes that the multifunctional tripod comprises a base disc; a plurality of telescopic tripod rods are connected with the periphery of the base disc in a hinged manner, a replaceable leveling disc is rotationally connected with the upper portion of the base disc, and the bottoms of the telescopic tripod rods are fixedly connected with replaceable tripod fixing ends; the telescopic tripod rods comprise a plurality of telescopic rods which are sequentially connected with one another, andthe telescopic rods are fastened and connected with one another by screwing sleeves; the leveling disc comprises a ring-shaped disc, a plurality of gaskets are arranged on the inner side of the ring-shaped disc, set shapes are enclosed by the gaskets, and the gaskets are connected with the ring-shaped disc. The multifunctional tripod has the advantages that the problems of difficulty in leveling existing measurement instruments and incapability of accurately fixing the existing measurement instruments can be solved by the aid of the multifunctional tripod; prisms and level staffs in measurement instruments can be fixed and accurately leveled by the aid of the multifunctional tripod in diversified engineering measurement environments, and accordingly measurement errors can be reduced.

The invention discloses a rigid leveling mechanism for a printing platform of a 3D printer. When leveling need to be conducted, the printing platform is taken down at first, small screws and lock nuts are unscrewed, and three leveling screws are moderately adjusted, so that a base plate is relatively parallel to a printing head; the small screws and the lock nuts are screwed, and then, the printing platform is placed on the base plate after upper and lower magnets attract mutually, so that the printing platform is relatively parallel to the printing head. In the leveling process, the base plate cannot be vibrated or shaken when the leveling screws are screwed or unscrewed, and thus a planometer can quickly work conveniently. After the base plate is leveled, the base plate is fundamentally not staggered relative to the leveling screws in the small screw screwing process, and the effect that the base plate is parallel to the printing head relatively can be ensured after the small screws are screwed. According to the rigid leveling mechanism for the printing platform of the 3D printer, the rigid leveling mechanism is formed by improving a traditional leveling mechanism for a printing platform of a 3D printer, the printing platform cannot be vibrated or shaken in the printing process after leveling and locking are conducted, and the size precision and surface flatness of a printed product are improved advantageously; and in addition, leveling operation is convenient, the economical and practical effects are achieved, the structure is simple, and the design is reasonable.

The embodiment of the invention discloses a large-area concrete ground high-flatness construction device and a construction method thereof, and belongs to the technical field of concrete leveling. The large-area concrete ground high-flatness construction device comprises a supporting frame, a sliding rail is slidably connected to the bottom of the supporting frame, a limiting column is arranged at the bottom of the sliding rail, and a leveling mechanism is arranged at the bottom of the limiting column; and vibration flattening mechanisms are arranged on the two sides of the flattening mechanism. Through corresponding cooperative use and solidification of all structures, different areas of the concrete ground are leveled, the application range of the device in use is widened, meanwhile, high places of the concrete ground can be ground, air mingled in the concrete ground can be vibrated out through vibration of a vibration rod, and the concrete ground is prevented from falling off. And vibration and flattening are synchronously carried out on the concrete ground, so that the device is more time-saving, labor-saving and more convenient to use.

The invention discloses a scale support for cross-fault leveling. The scale support comprises a circular base plate, a supporting rod is installed in the support through a pin shaft, universal wheels are installed on the outer side of the supporting rod, a sleeve is installed on the surface of the top end of a rotating disc, a lead screw is connected into the sleeve in a threaded and sleeved mode, and a top disc is installed on the surface of the top end of a connecting supporting leg. An angle sensor is installed at the circle center of the surface of the bottom end of the top disc, a supporting cylinder is installed at the top end of a triangular support, an extension rod is sleeved with the supporting cylinder, a first positioning plate is installed at the top end of the extension rod, a second positioning plate is connected to one side of the supporting cylinder, and clamping devices are installed at the tail ends of the first positioning plate and the second positioning plate. The foldable supporting rods are arranged at the bottom end of the round base plate, the universal wheels can touch the ground after the supporting rods are folded, the support is more convenient to move through cooperation with a handle, the horizontal position of the top plate is detected through the angle sensor, and therefore the height of the lead screw can be more accurately adjusted, and leveling is more convenient and faster.