79results about How to "Precise support" patented technology

The invention discloses a geological disaster risk assessment method and system based on a slope unit, and belongs to the technical field of geological disaster risk assessment, and the method comprises the steps: 1, collecting geological disaster formation conditions, 2, carrying out the geological disaster risk recognition and monitoring of the slope unit, 3, carrying out ground investigation, and 4, carrying out geological disaster risk assessment. The method comprises the following steps of (1) carrying out slope units, (2) carrying out slope units, (3) carrying out slope units, (4) carrying out geophysical prospecting and drilling work, (5) carrying out mountain engineering and engineering geological profile measurement, (6) carrying out tests and experiments on slip mass soil, slip zone soil, dangerous rocks, collapse, mother rocks and bases, and (7) evaluating the geological disaster risk of the slope units. The advantages of the multi-factor coupling effect are fully considered, and the problems that the reliability of the assessment result is affected due to the fact that an assessment model of an existing geological disaster risk assessment method and system based on the slope unit is imperfect, and the assessment result is not comprehensive and accurate due to the fact that the multi-factor coupling effect is not fully considered are solved.

The invention discloses an automatic detection device and detection method for the sealing performance of a precision valve, and the device comprises a machine body which is provided with a placement frame at the side edge; the detection mechanism is arranged on the placement frame; the detection mechanism comprises a lower plate body fixedly arranged at the top of the placing frame, an upper plate body positioned at the top of the lower plate body, and supporting columns fixedly arranged at four corners between the lower plate body and the upper plate body; a mounting plate movably sleeves the two supporting columns at the rear position, a plugging mechanism is arranged in the detection mechanism, the plugging mechanism comprises an enclasping assembly horizontally arranged between the upper plate body and the lower plate body, and the enclasping assembly movably penetrates through the mounting plate; according to the sealing device, the problems of low efficiency and insufficient automation degree existing in a traditional manual sealing mode are effectively solved through introduction of a sealing air cylinder, and in order to avoid accidental ejection of a valve which is installed in place due to the pressure effect in the sealing process, a holding assembly is designed; the enclasping assembly can be tightly attached to and limit the blocked valve.

The invention relates to a geomechanical data visualization method, device and equipment and a medium thereof. The method comprises the following steps: acquiring original data containing rock mass structural characteristics and temperature and humidity environmental parameters, and completing grid division and load and displacement constraint boundary condition setting by adopting finite element analysis to obtain a rock mass stress distribution model; core mechanical parameter evolution of rock mass at different time nodes is simulated based on the model, and a dynamic stress distribution sequence is generated; identifying and marking stress overrun potential event association points through a threshold value, extracting a key time-space change trend, and inputting the key time-space change trend into the time-space dynamic model to obtain a risk prediction distribution diagram containing a risk level, a coverage range and an occurrence probability; and constructing a three-dimensional dynamic view by adopting visual rendering, analyzing a mechanical parameter full-cycle evolution path and geological event association mode, and outputting a three-dimensional dynamic result integrating multi-dimensional information. According to the method, the problems of static data presentation and event association deficiency in the traditional technology can be solved, and the scientificity and the high efficiency of geological engineering analysis are improved.

The utility model provides a motor bearing press-fitting device which comprises a supporting table, a guide column, a supporting plate, a press-fitting structure, a supporting frame, a press-fitting hydraulic structure and a bearing positioning structure, the guide column is fixedly installed on the surface of the supporting table, the supporting plate is fixedly installed on the top of the guide column, and the press-fitting structure is installed on the surface of the guide column in a sliding mode; the supporting frame is fixedly installed on the surface of the supporting table, and the press-fitting hydraulic structure is fixedly installed on the top of the supporting frame and fixedly connected with the press-fitting structure. The bearing positioning structure is fixedly mounted on the surface of the supporting table; due to the arrangement of the press-fitting structure and the bearing positioning structure, the problems that an existing bearing press-fitting structure is still incapable of accurately positioning, uneven in pressure distribution and relatively low in production efficiency are solved.

The utility model relates to the technical field of oil cylinder disassembling tools, and discloses an oil cylinder disassembling tool which comprises a sleeving barrel, a rotating disc and a plurality of fastening blocks, a plurality of cross-shaped grooves are formed in the edge of the upper surface of the sleeving barrel, the rotating disc is arranged outside the sleeving barrel in a sleeving mode, a plurality of cross-shaped blocks are fixedly connected to the edge of the inner wall of the rotating disc, and a plurality of fastening blocks are fixedly connected to the edge of the inner wall of the rotating disc. The lower surfaces of the cross blocks are tightly attached to the inner bottom face of the cross groove, a sleeving groove is formed in the middle of the lower surface of the sleeving cylinder, a plurality of positioning rods are fixedly connected to the edge of the inner top face of the sleeving groove, and the outer walls of the sides, close to the center of the sleeving cylinder, of the fastening blocks are tightly attached to the outer wall of the sleeving cylinder. According to the oil cylinder disassembling tool, the rotating disc is ingeniously matched with the sleeving barrel, and the fastening block and the connecting rod are stably fixed, so that the oil cylinder disassembling tool realizes a rapid and stable disassembling process, and the working efficiency is improved.

The utility model discloses an impeller integrated forming die which comprises a bottom plate, a top plate, a fixing disc, a guide column and a center shaft. A plurality of first guide holes are formed in the bottom plate; the top plate is located above the bottom plate and is parallel to the bottom plate, a sinking groove is formed in the lower end of the top plate, a first through hole is formed in the upper end of the top plate, a second guide hole is formed in the top plate, and an exhaust groove is formed in the bottom face of the top plate. The fixing disc is embedded into the sinking groove, a second through hole corresponding to the first through hole is formed in the fixing disc, a cutting groove is formed in the edge of the bottom face of the fixing disc, and the exhaust groove is communicated with the cutting groove; the guide columns are perpendicular to the bottom plate, each second guide hole is internally provided with one guide column, and one end of each guide column extends into the corresponding first guide hole; two ends of the central shaft are respectively connected with the bottom plate and the top plate. Accurate positioning and stable supporting of the impeller blades and the impeller body in the mold are achieved, the forming precision of the impeller is effectively improved, and the mechanical property of the impeller is improved.

The utility model relates to a body position pad, in particular to a multifunctional semi-reclining body position pad. Comprising an upper body bottom pad, a sacrococcygeal pad and an adduction pad, and the upper body bottom pad is wedge-shaped and used for supporting the upper body of a patient by a certain angle; the sacrococcygeal pad is arranged at the lower part of the upper body bottom pad and is used for supporting the sacrococcygeal part of the patient to prevent the patient from sliding down due to gravity; the first end of the adduction pad is connected to the sacrococcygeal pad, the second end of the adduction pad is far away from the sacrococcygeal pad, and the adduction pad is used for supporting a patient. Through the wedge-shaped upper body bottom pad, the upper body of a patient can be effectively supported to a proper angle, body pressure is relieved, meanwhile, the sacrococcyx pad and the adduction pad are arranged to prevent the patient from sliding down due to gravity, and stable support is provided.

The utility model discloses a chamfer milling and grinding tool for optical parts, which relates to the technical field of chamfer milling and grinding tools for optical parts and particularly comprises a tool plate, a mounting hole is fixedly connected to the outer surface of the tool plate, a first guide post and a second guide post are fixedly connected to the inner side wall of the tool plate, and a support frame is slidably connected to the outer surface of the first guide post. First springs are fixedly connected to the inner side walls of the supporting frames, partition plates are fixedly connected to the upper ends of the supporting frames, supporting rods are slidably connected to the inner side walls of the inclined sliding grooves, arc-shaped frames are slidably connected to the inner side walls of the vertical sliding grooves through sliding blocks, and connecting rods are rotatably connected to the outer surfaces of the arc-shaped frames through shaft rods. And the outer surface of the middle of the adjusting rod is rotationally connected with a connecting block, the outer surface of the first rotating plate abuts against an optical lens, and the device has the beneficial effects that the situation that adjacent optical lenses hinder a machining path is conveniently avoided, and the device is convenient to adapt to optical parts of various sizes.

The invention relates to the technical field of bellybands, and discloses a multifunctional bellyband used after renal paracentesis and based on child physical characteristics, the multifunctional bellyband comprises a band body, and the band body is filled with gel; the clamping and closing mechanism is clamped and fixed on the belt body along the width direction of the belt body and is used for cutting off the gel channel in the belt body. According to the kidney paracentesis postoperation multifunctional bellyband based on the child body shape characteristics, through the design of gel filling and a clamping and closing mechanism, waist support can be flexibly adjusted according to the difference of child body shapes, accurate compression can be provided, it is ensured that effective compression hemostasis can be achieved on kidney paracentesis parts after the operation, and postoperative complications are reduced.

The invention relates to the technical field of blade machining fixing assemblies, in particular to a blade base fixing device for a five-axis linkage machining machine tool, which comprises a five-axis machining machine tool body, a quick assembly, a connecting assembly and a clamping assembly, and is characterized in that the quick assembly is detachably assembled on the top surface of a sliding table of the five-axis machining machine tool body; a connecting assembly is detachably assembled on the top of the quick assembly, and a clamping assembly is detachably assembled on the top face of the connecting assembly. Manual accurate alignment and tedious clamping are not needed in the whole process, automatic, accurate and rapid clamping of the blade base is achieved, the core pain point in the prior art is solved, the high-precision and efficient machining requirements of blades in the fields of aerospace and energy power are met, and the production efficiency and the finished product quality are improved.

The utility model discloses a conveying device for supply chain management, which comprises a conveyor, and a protection mechanism and a guide mechanism are arranged on the surface of the conveyor. The protection mechanism comprises a support, two hydraulic cylinders are fixed to the surface of the support, a sliding groove is formed in the surface of the support, an adjusting plate is slidably connected to the surface of the sliding groove, the tops of the hydraulic cylinders are fixedly connected with the bottom of the adjusting plate, two photoelectric sensors are fixed to the surface of the adjusting plate, and an air cylinder is fixed to the surface of the adjusting plate. One end of the air cylinder penetrates through the adjusting plate and is fixedly provided with a movable plate, a plurality of springs are fixed to the surface of the movable plate, a protection plate is fixed to the surfaces of the springs, and a plurality of first rotating rollers are installed on the surface of the protection plate. The anti-toppling device has the advantages of being capable of carrying out auxiliary protection on high objects and preventing the objects from toppling over in the transportation process, and the problem that the objects with large sizes are prone to toppling over in the transportation process at present is solved.

This invention provides a synchronous grouting model test device and method for shield tunnels, belonging to the field of shield tunnel construction technology. The synchronous grouting model test device for shield tunnels includes a working condition simulation base; a model box is set on the working condition simulation base; the interior of the model box is divided into a stratum simulation layer, a tail grouting cavity layer, and a segment simulation layer from top to bottom; a tail grouting simulation box is set in the tail grouting cavity layer; the tail grouting simulation box is provided with grouting holes for grouting; a grouting system has grouting pipelines; the grouting pipelines are connected to the grouting holes; the grouting system injects grout into the tail grouting simulation box through the grouting pipelines and grouting holes. The synchronous grouting model test device for shield tunnels provided by this invention collects grouting pressure and grouting flow data in real time during the test. The controller can quickly complete parameter comparison and calculation based on the collected real-time data. The system can automatically adjust the grouting output state to keep the grouting pressure and flow stable within a preset range.

The utility model provides a kind of cigarette maker shell cover structure, belong to cigarette maker technical field, including shell cover, the outer wall of shell cover is equipped with tobacco entry of communicating inner cavity, the outer wall of shell cover is fixedly connected with the handrail installation slot of triangular distribution with tobacco entry, and the outer wall of shell cover is fixedly connected with the tobacco surrounding block that occupies its half, and tobacco surrounding block protruding is along the edge of shell cover surrounded at the outside of tobacco entry and handrail installation slot, the outer wall of shell cover is embedded with cigarette break handle being connected with its inner cavity, by being equipped with long strip tobacco entry, different forms and flow tobacco can be adapted, make tobacco smoothly enter shell cover inner cavity;At the same time, tobacco surrounding block, which occupies shell cover half and is peripherally surrounded at the outside of tobacco entry and handrail installation slot, can effectively block tobacco, avoid it from spilling from shell cover edge, ensure that tobacco is concentrated in predetermined area, lay foundation for subsequent stable tobacco conveying, reduce tobacco waste, improve tobacco utilization.

The invention discloses a substance exploration scheme iterative generation system and method, and relates to the technical field of substance exploration scheme generation. The material exploration scheme iteration generation system is provided with a Controller layer, a Service layer, a robot and workstation gateway, at least one workstation, at least one robot, a DAO layer and an algorithm analysis and parameter optimization module. According to the invention, full-process automatic closed loop from task parameter submission, instruction generation, equipment cooperative execution, data storage to model training and formula prediction is realized, manual intervention is not needed, manpower input and material consumption are reduced, experiment efficiency and result accuracy are improved, traceability of experiment data and system stability are guaranteed, and the system is suitable for large-scale popularization and application. The problems that in a traditional material science experiment, manual experience is relied on, task issuing and instruction conversion efficiency is low, errors are prone to occurring, experimental data collection and analysis are lagged, and parameter optimization lacks an automatic mechanism are solved.

The utility model provides a kind of suspension bridge main cable ventilation pipeline mounting structure, including ventilation pipeline subsection and the cable strand that has been erected around ventilation pipeline subsection lower, the both ends of ventilation pipeline subsection are provided with the spiral segment for being connected with each other, the outside of each cable strand is wound with the wrapping tape for being wound with ventilation pipeline subsection, the outer diameter of spiral segment is less than the outer diameter of ventilation pipeline subsection, and its connection with ventilation pipeline subsection is provided with the limiting ring that is tangent to and fits with surrounding cable strand. By setting wrapping tape on the multiple cable strands below ventilation pipeline subsection, and cooperating with the limiting ring that is tangent to and fits with cable strand, accurate positioning and stable support of ventilation pipeline are realized, effectively preventing deviation or torsion during installation and use process;Limiting ring inscribed circle is consistent with ventilation pipeline outer diameter, to ensure that structure adaptation precision.

The invention relates to the technical field of automobile part machining, and particularly discloses automobile bending arm clamping piece forging equipment which comprises a stamping table and stamping equipment, the stamping table is located in the stamping equipment, a lower forging die is arranged on the surface of the stamping table, and an upper pressing die installed on the stamping equipment is arranged above the lower forging die. An exchange rail is arranged on the rear side of the stamping equipment, and a switching mechanism is arranged on the rear side of the lower portion of the lower forging die. According to the automobile bending arm clamping piece forging equipment, by arranging the efficient switching mechanism, rapid unfolding and tightening of the die are achieved, so that the forging die can be rapidly switched in the stamping work of different bending arm clamping pieces, the equipment is provided with the stable fine adjustment mechanism, the gap between the new forging die and the upper pressing die is allowed to be accurately adjusted, and the stamping efficiency is improved. And due to the design of the supporting frame structure and the adjusting base, the new forging die can be accurately locked and stably supported during installation, and the stability of the die in the forging process is guaranteed.

The utility model relates to a partitioned spliced mattress which comprises an air bag region and a water bag region which are fixedly connected or detachably connected into a whole. The air bag area comprises an air bag layer and a fabric layer attached to the surface of the air bag layer. The air bag layer is formed by connecting and combining adjacent sides of a plurality of strip-shaped air bag units. The mattress is formed by splicing the air bag area and the water bag area, the sacrococcygeal region is supported by the water bag, and the water bag can conform to the curve of a human body, so that the pressure borne by the sacrococcygeal region is effectively reduced; the four limbs and the trunk of the user are supported by the air bags, and effective and targeted support can be provided for different parts of the user through inflation and deflation. Compared with an integrated water bed and an integrated air bed which are commonly used, the mattress disclosed by the embodiment has the same or equal supporting effect, and meanwhile, different subareas are connected through welding or zippers, so that the manufacturing difficulty can be obviously reduced; and local damage can be replaced and maintained in time without maintaining or scrapping the whole bed, so that the material cost is reduced.

The present invention provides a cab floor robot welding tool, comprising a workbench, a slidable front clamp assembly is arranged at the first end of the workbench, and also comprises a side clamp assembly slidably arranged on the workbench, and the side clamp assemblies are symmetrically distributed on both sides adjacent to the first end of the workbench; the sliding track of the front clamp assembly is perpendicular to the sliding track of the side clamp assembly. The side clamp assembly comprises a first side clamp group and a second side clamp group. A longitudinal pressure-bearing member and a positioning support member for positioning the skeleton beam are arranged in the middle of the workbench, and a positive pressure assembly is distributed in the second end of the workbench, the area between the first side clamp group and the second side clamp group, and a clamping assembly is distributed between the two symmetrically distributed second side clamp groups. The front clamp assembly, the side clamp assembly and the positive pressure assembly are all configured to detect the presence of a welded part, and then detect whether it is clamped. The present invention has a reliable clamping and can prevent the welded part from deforming.

The utility model relates to medical shell bonding technical field discloses a kind of bonding tool of medical shell, including two groups of bottom support, three groups of connecting plates are provided between two groups of bottom support, and first bonding tool is provided in three groups of connecting plates rear end left side, first bonding piece is provided in three groups of first bonding tool upper end, and three groups of fixed frame are provided in the front side of rear side bottom support, and second bonding piece is provided in the front side of three groups of fixed frame, and multiple groups of supporting plate are provided on the upper surface of two groups of bottom support, and shell body is provided on the upper side of multiple groups of supporting plate, and fixed assembly is provided in six groups of fixed frame upper end. In the utility model, by being provided with fixed assembly, after being set in the outside of top plate and bottom support by fixed frame, rotating rotating block makes rotating block drive adjusting rod rotate, so as to drive clamping block to move by screw structure, top plate is pressed tightly, so that the fixing effect of top plate and bottom support is more stable, guarantee the strength of bonding tool.

The application relates to a hydrogeological structure analysis method based on multi-source data fusion and three-dimensional modeling, and belongs to the technical field of hydrogeological analysis. The method comprises the following steps: obtaining multi-source data of a hydrogeological structure and performing preprocessing to obtain standardized multi-source data of the hydrogeological structure; integrating the standardized multi-source data of the hydrogeological structure to obtain key multi-source data of the hydrogeological structure; the key multi-source data of the hydrogeological structure comprises special geological body spatial distribution data, underground facility-stratum spatial relationship data and stratum-structure three-dimensional framework data; an initial three-dimensional geological model is constructed based on the key multi-source data of the hydrogeological structure, and the initial three-dimensional geological model is dynamically updated to obtain a dynamic three-dimensional geological model; a representation method of the dynamic three-dimensional geological model is optimized to obtain a high-precision three-dimensional model; and mechanism analysis and correlation mining are carried out based on the high-precision three-dimensional model. The application can improve the accuracy of hydrogeological structure analysis.

The invention provides a flexible clamping tool for carrier frame welding and a welding workstation, and belongs to the technical field of automatic welding, the flexible clamping tool comprises a bottom fixing frame, a turntable assembly, a main frame clamping assembly, a cross brace bracket assembly, a cross brace clamping assembly and a vertical frame supporting assembly; the rotary disc assemblies are symmetrically arranged at the top of the bottom fixing frame and can automatically rotate, the main frame clamping assembly achieves adaptive clamping of main frames with different intervals through a synchronous sliding mechanism of an inner clamping block and an outer clamping sliding base, and the cross brace bracket assembly adapts to cross brace positioning between the main frames with different lengths through translation adjustment of an adjustable supporting plate and a length adjusting backer. The transverse support clamping assembly and a transverse support clamping block can clamp a transverse support through an overturning frame, and the vertical frame supporting assembly synchronously drives a side column to reinforce the transverse support and ejects out a supporting block to support and limit a vertical frame through cooperation of an active inclined block and an inclined face of a passive inclined block during translation. Accurate positioning of main frames, cross braces and vertical frames of frames of different specifications is achieved, and clamping flexibility and welding precision are remarkably improved.

This utility model discloses an integrated tool for overhauling the 2-bearing rotor shaft of a GE 9FA gas turbine. The tool includes a main structural component, comprising an upper connecting part, an extended protrusion, and a lower receiving part. A lifting point is centrally located at the upper connecting part, positioned above the main structural component. Extended protrusions are located on both sides of the lifting point, with their lower ends forming jack fulcrums. A journal fulcrum is located at the lower receiving part. This tool has been proven to efficiently complete the removal and overhaul of the 2-bearing rotor without requiring complete rotor removal, significantly improving on-site work efficiency and safety. Furthermore, it drastically reduces maintenance time, bringing significant economic benefits to enterprises. Simultaneously, the introduction of this tool greatly simplifies the maintenance process, reduces the complexity of on-site operations, and effectively saves working time and safety costs.

The utility model relates to the technical field of exhaust pipe detection equipment, in particular to a tail gas exhaust pipe size detection device which comprises a base, two positioning assemblies are symmetrically installed on the base, and bearing frames used for supporting an exhaust pipe are installed on the two sides of the base. The base drives the positioning assembly to horizontally move through the lead screw component to clamp and position the exhaust pipe, scale marks are arranged on the outer wall of the base in the horizontal direction, the exhaust pipe is horizontally supported through the bearing frame, and the middle of the exhaust pipe is clamped and positioned through the positioning assembly. According to the tail gas exhaust pipe size detection device, the positioning assemblies symmetrically arranged on the base and the bearing frames on the two sides are matched with each other, and accurate positioning and stable supporting of the exhaust pipe can be achieved. The groove of the bearing frame is attached to the bottom of the exhaust pipe, the puller bolt on the fixing plate is matched with the buffering silica gel pad to tightly abut against and limit the outer side of the exhaust pipe, and the exhaust pipe is prevented from shaking in the measuring process.

The application provides a printed circuit board production adaptive soldering device, which comprises a soldering host, two mounting plates are symmetrically arranged in the soldering host, a spacing adjusting assembly is arranged on the top surface of the mounting plate, and a conveying assembly is arranged on the mounting plate; the visual module can not only measure the length and width dimensions of the printed circuit board, but also identify the irregular edge profile of the printed circuit board; when the production line is switched to an irregular printed circuit board, the visual module sends the collected irregular profile data to an external control system, the control system accurately calculates the control amount of the fine adjustment assembly and the driving assembly, and controls the soldering device according to the calculated control amount, so that the soldering device can be self-adaptive to various complex shapes of printed circuit boards without changing the jig.

The utility model discloses a laminated busbar quality detection device, which relates to the field of busbar detection and comprises a workbench, a vertical plate is fixedly mounted on the upper surface of the workbench, a transverse plate is fixedly mounted at the top end of the vertical plate, a motor is fixedly mounted on the upper surface of the transverse plate, and a lead screw is fixedly mounted at the output end of the motor. One end of the lead screw is rotationally connected with the workbench. According to the utility model, the height detection assembly and the lifting plate are arranged, the motor drives the screw rod to rotate, the screw rod nut drives the lifting plate to move downwards, the laser sensor fixed on the lifting plate moves downwards synchronously, and the distance between the laser sensor and the surface of the busbar body is measured continuously; the detection value of the pressure sensor rises, the controller monitors the pressure value in real time, when the detection value exceeds a preset threshold value, the motor stops running immediately, the controller reads measurement data of the laser sensor, and the actual height of the busbar body is obtained by calculating the difference value between the initial height and the displacement of the laser sensor.

The utility model provides a temporary support for positioning control during steel box girder hoisting, which comprises a supporting plate, an adjusting screw rod, a circular sleeve base and a jack which are sequentially distributed from top to bottom, a limiting blind hole is arranged on the lower surface of the supporting plate, an internal thread is arranged on the inner circumferential surface of the circular sleeve base, and the limiting blind hole is communicated with the limiting blind hole. The upper end of the adjusting lead screw is arranged in the limiting blind hole in a penetrating mode, the lower end of the adjusting lead screw is connected into the round sleeve base in a threaded mode, an inserting hole is formed in the circumferential face of the adjusting lead screw, a rotating handle is arranged in the inserting hole in a penetrating mode, and the lower end of the round sleeve base is supported on the jack. The utility model aims to provide the temporary support for positioning control during hoisting of the steel box girder, which can reliably support and accurately adjust the height, and solves the problem that a bridge cannot be accurately supported due to the fact that an existing temporary support is easy to deform.

The utility model belongs to the field of track gas cutting machines, particularly relates to a track gas cutting machine, and aims to solve the problem that normal movement of the gas cutting machine on a horizontal track is difficult to guarantee due to the fact that the bottom of the existing track is not provided with an independently supported tool, and adopts the following scheme that the track gas cutting machine comprises two guide rails, and a plurality of connecting plates are fixedly mounted between the two guide rails; sliding plates are fixedly mounted at the bottoms of the two guide rails, a plurality of sliding frames are arranged on the outer walls of the two sliding plates in a sliding mode, and a plurality of clamping teeth are arranged on the two sides of each sliding plate; the track laying device further comprises two clamping assemblies, the two clamping assemblies are the same in structure and are located on the two sides of the sliding frame respectively, and through free sliding of the sliding block and the sliding frame on the track sliding plate and accurate control of the height adjusting assemblies, laying of a track is more stable, the track can be rapidly and accurately supported, and the track laying efficiency is improved. And the working efficiency and the flexibility are greatly improved.