122results about How to "Guaranteed levelness" patented technology

The invention relates to the technical field of soil layer drilling, in particular to an efficient underground water quality detection sampling device which comprises a base, a fixing seat is further arranged on the base, and a device storage structure and a sample storage structure are arranged on the left side and the right side of the fixing seat respectively; a supporting structure is further arranged in the middle of the fixing base and comprises a vertical plate, a transverse plate, an axial motor, a mounting base, a lead screw, a guide rod and a drill rod. The drill rod is connected with the mounting seat through a rotating piece; the drill rod comprises a drill bit, a rod body, a sampling water pump and a sampling pipe; a sampling hole is further formed in the drill bit, and a liquid collecting cavity which is coaxially distributed is formed in the center in the rod body; a first cavity and a second cavity which are distributed from inside to outside are further formed in the rod body and located on the outer side of the liquid collecting cavity, and the sampling hole extends inwards, penetrates through the first cavity and the second cavity and is communicated with the liquid collecting cavity. The device is reasonable in structural design, filtering, collecting, sampling and storing operation of underground water at different heights can be completed on the basis that efficient drilling of underground water soil layers at different depth positions is achieved, and the using effect is good.

The invention relates to the technical field of spectacle lens processing, in particular to optical spectacle lens polishing equipment which comprises a bottom plate, a polishing unit and a locking mechanism. The rotating ring and the pushing plates and the clamping blocks on the rotating ring jointly clamp the circumferential face of the spectacle lens and conduct self-locking, so that the rotating ring and the spectacle lens are integrated, in the follow-up polishing face replacing process, the rotating ring is moved upwards and turned over, the spectacle lens is placed on the vertical plate, and the polishing face is replaced. In the process, the reference of the rotating ring is always taken as the reference of the spectacle lens, so that the problem that the processing time and the processing error are increased due to the fact that the reference of the spectacle lens needs to be repositioned in the process of replacing the polished surface is solved; the polishing device is suitable for the polishing machining process of two spherical surfaces of the spectacle lens, the swing path of the polishing plate is limited in the polishing process, and the polishing precision and stability are improved.

The invention discloses a positioning device and a positioning method for a bar planting hole of a constructional column in the technical field of bar planting positioning, a plurality of connecting rods and adjusting supporting rods are assembled into a frame structure in the same plane, a gradienter is further mounted on a center rod, and a foot stool is mounted at each of two ends of each adjusting supporting rod through bolts. A plurality of laser positioners are installed on a frame structure composed of the connecting rods and the adjusting supporting rods, each laser positioner coincides with one embedded steel bar positioning point, a building body on the top of a floor can be marked through the laser positioners, the position of an embedded steel bar hole of a constructional column can be calibrated and positioned all the time, laser positioning is light beam irradiation positioning, and the positioning accuracy is high. In addition, continuous irradiation positioning is achieved during drilling, and it is guaranteed that the drilling direction is accurate; and the supporting height of the frame can be adjusted through the foot stands and the adjusting rods, so that the frame composed of the connecting rods and the adjusting supporting rods can be kept horizontal, the positioning precision of the embedded steel bar holes is improved, and the construction speed and precision are improved.

The invention relates to a straight seam welding system for pipes, which is provided with a working platform and a rack fixed on the working platform, and is characterized in that the working platform is provided with a feeding station, a calibration station and a welding station, the feeding station is provided with a feeding mechanism capable of feeding, clamping and positioning the pipes, and an outer centering mechanism; the calibration station is provided with an inner centering mechanism, a hanging arm, a hook mechanism and a pipe pushing mechanism, wherein the hanging arm is fixed to the rack and can stretch into a pipe to support the pipe when the pipe is fed, the hook mechanism can be connected with the hanging arm in a matched mode, and the pipe pushing mechanism can push, press and position the pipe on the hanging arm. The piano key pressing plate mechanisms are oppositely arranged on the rack and can abut against the tops of the pipes, and a laser welding mechanism capable of welding weld joints on the pipes is arranged on the welding station; the invention further relates to a welding method, an electronic device and a storage medium. The pipe welding device is ingenious in structure, capable of achieving fast, efficient, stable and accurate welding of pipes, convenient and practical.

The invention relates to the technical field of unmanned aerial vehicle launchers, in particular to a marine unmanned aerial vehicle launcher. The marine unmanned aerial vehicle launcher comprises a supporting frame, a bottom bracket, a telescopic piece, an angle adjusting assembly, a lifting frame, a front supporting assembly and a rear supporting assembly. The two ends of the telescopic pieces are rotationally connected with the supporting frame and the bottom bracket correspondingly, and the multiple telescopic pieces are arranged at intervals; the angle adjusting assembly is arranged on the bottom bracket and is in transmission connection with the lifting frame; the front supporting assembly and the rear supporting assembly are arranged on the lifting frame at intervals in the length direction of the lifting frame, and the front supporting assembly and the rear supporting assembly are both used for being connected with the unmanned aerial vehicle. The front supporting assembly locks or releases the lug rods through the lock catches, so that the levelness of the bottom bracket can be adjusted by adjusting the lengths of the multiple telescopic pieces, it is guaranteed that the levelness of the bottom bracket is within the set range, and therefore the launching accuracy of the unmanned aerial vehicle is guaranteed.

The utility model relates to a precise and controllable valve seat grinding device, and relates to the technical field of valve seat grinding, the precise and controllable valve seat grinding device comprises a grinding workbench, a mounting bracket is fixedly mounted on the grinding workbench, and a grinding motor is arranged on the mounting bracket in a lifting manner; and a control panel, a clamping mechanism, a driving module and a grinding control module. The levelness of the sealing face of the grinding valve seat can be guaranteed, and meanwhile the contact pressure and the grinding duration between the grinding disc and the sealing face are accurately controlled.

The utility model relates to the technical field of scoliosis measurement, and discloses a scoliosis measuring device which comprises an adjusting frame, two sets of rectangular through grooves are symmetrically formed in the adjusting frame, limiting rods are installed in the two sets of rectangular through grooves, the surface of each set of limiting rod is in sliding connection with a moving block, and the moving blocks are connected with the adjusting frame. A spring is installed on the surface of each set of moving blocks, a mounting groove is formed in the adjusting frame, an adjusting mechanism used for keeping the adjusting frame horizontal is arranged in the mounting groove, and a measuring mechanism used for measuring the scoliosis angle is arranged at the top of the adjusting frame. According to the scoliosis measuring device, the problems that an existing scoliosis measuring device needs to be held by a medical worker for measurement in use, errors are generated when the medical worker reads due to the fact that the device is not tightly attached to the spine of a patient in the measuring process, and meanwhile due to the fact that the device is held by the hand, the device needs to be moved in the measuring process, and the measurement time is shortened are solved. Therefore, the problem of inclination deviation in the moving process is solved.

The utility model discloses a pile stabilizing platform adjusting device which comprises a pile stabilizing platform, a first through hole is formed in the pile stabilizing platform, a plurality of leveling structures are arranged on the pile stabilizing platform, and the leveling structures are arranged around the first through hole at intervals in a surrounding mode. The ends, away from the pile stabilizing platform, of the multiple leveling structures are connected with annular locking structures, the annular locking structures are provided with holding structures, the positioning piles sequentially penetrate through the annular locking structures and the first through holes, the holding structures are used for holding the positioning piles, and the leveling structures are used for leveling the pile stabilizing platform. According to the pile stabilizing platform adjusting device, the multiple leveling structures are arranged on the pile stabilizing platform, the annular locking structures are connected to the ends, away from the pile stabilizing platform, of the multiple leveling structures, and the enclasping structures are arranged on the annular locking structures, so that the structure is simple, the installation efficiency of the pile stabilizing platform is improved, and the labor cost is reduced; and the levelness of the pile stabilizing platform is ensured, and the influence on the pile sinking precision of the steel pipe pile is reduced.

The invention discloses a single pile, tripod and suction pile combined fan foundation structure, the single pile, tripod and suction pile combined fan foundation structure comprises a central stand column and a lower support, an inclined strut is connected between the lower support and the central stand column, a connection reinforcing section is arranged between the inclined strut and the central stand column, the lower support is connected to the suction pile, and the lower support is connected to the suction pile. The suction piles are inserted into seabed soil, so that the central stand column is stably arranged on the seabed; steel pipe piles are inserted into the center stand column, one ends of the steel pipe piles are connected with fans, and the ends, away from the fans, of the steel pipe piles are inserted into seabed soil so that the fans can be stably arranged on the sea. According to the single pile, tripod and suction pile combined fan foundation structure, the tripod structure is stably placed on the seabed at the preset position through the lifting appliance, then all the suction piles penetrate into the soil body and reach the designed depth, it is guaranteed that the overall perpendicularity and levelness meet the design requirement, and the construction efficiency is improved. And the steel pipe pile is hoisted to penetrate through the center stand column till the bottom end to be inserted into seabed soil.

The utility model provides a track adjusting device which comprises an embedded part and an adjusting assembly arranged in a split mode with the embedded part, the adjusting assembly comprises a base, a supporting part, a first adjusting unit, a second adjusting unit and a third adjusting unit, the base is used for being installed on the embedded part, the supporting part is used for supporting a track, and the first adjusting unit, the second adjusting unit and the third adjusting unit are installed on the base. The first adjusting unit can adjust the height position of the supporting piece, the second adjusting unit can adjust the position of the track in the width direction of the track, and the third adjusting unit can adjust the height position of the track. When the track adjusting device is used for installing the track, the first adjusting unit can be used for adjusting the height position of the track, the second adjusting unit can be used for adjusting the position of the track in the width direction of the track, namely adjusting the horizontal position of the track, and the third adjusting unit can also be used for adjusting the height position of the track. The straightness and flatness of the installed track can be well guaranteed, and therefore the installation precision of the track can be improved.

The utility model discloses a packaging carton automatic feeding device which comprises a lifting table, a roller frame, a two-section moving frame and a one-section pull rod, the roller frame is arranged on the lifting table, rollers are distributed on the lifting table at equal intervals and connected through chains to form a roller line used for conveying cartons, a guide inclined plate is arranged at the left end of the roller frame, and a guide inclined plate is arranged at the right end of the roller frame. Guide rails are arranged on the two sides of the roller frame, the lower end of the two-section moving frame is slidably connected with the guide rails, racks are arranged on the outer side faces of the guide rails, a motor is arranged on the two-section moving frame, an output shaft of the motor is meshed with the racks through a driving gear, electric sliding tables are symmetrically arranged on the upper surface of the two-section moving frame, and pull rod fixing frames are arranged on sliding blocks of the electric sliding tables. The packaging carton feeding device is simple in structural design, automatic feeding of packaging cartons is achieved through the ingenious structural design that two sections of cartons are matched with the roller line, the tedious steps of manual carton feeding are reduced, and the defects that an original manual carton feeding mode is low in production efficiency and wastes manpower resources are overcome.

The invention provides a plate shearing machine for fan blade plate machining, and relates to the technical field of shearing equipment, the plate shearing machine comprises a main body, a groove is formed in the rear side of the main body, the groove is of an inclined structure, the main body comprises a side plate, an open groove is formed in the side face of the side plate, a threaded rod is installed on the side face of the side plate, and a supporting assembly is installed at the top of the main body; the supporting assembly comprises an inner groove, and a telescopic assembly is installed in the inner groove; and the discharging assembly is installed on the rear side of the main body, the discharging assembly comprises a guide plate, and the top of the guide plate is installed in a groove in the rear side of the main body through a rotating shaft. The guide plate is used for guiding sheared plates, the bottom plate drives the guide plate to move through the connecting plate, the plates directly fall into the container, the workload of operators is reduced, and the problems that when an existing plate shearing machine is used, the plates sheared by the plate shearing machine directly fall onto the ground, and time and labor are wasted during picking are solved.

The present invention discloses a medical suture heat curing automatic cutting machine, which belongs to the technical field of textile machinery. The medical suture heat curing automatic cutting machine includes a frame, a tension wire release device, a heating curing device, a traction length fixing device and a cutting device. The tension wire release device is installed on one side of the frame, and the tension wire release device includes a wire drum; the heating curing device includes a heating block; the traction length fixing device includes a linear module, a movable finger cylinder and a fixed finger cylinder, and the linear module is slidably connected to the movable finger cylinder; the cutting device includes a blade. The present invention can accurately cut out sutures of the same length, and the cutting process does not require manual participation, will not cause suture contamination, saves a lot of labor costs, can realize continuous automatic cutting, and is highly efficient; the suture fracture after cutting will harden, will not be loose and unable to thread, and there is no need to cut off the loose sutures in the later stage, threading is convenient, and waste of sutures is avoided.

The application relates to a height adjusting device and a storage library. The height adjusting device comprises a height adjusting structure and an adjusting wrench. The height adjusting structure comprises a supporting base, an adjusting sleeve, a floating top base and a locking assembly. The upper surface of the adjusting sleeve is provided with a first matching surface spirally rising around a second direction. The floating top base is movably sleeved on the supporting base and located above the adjusting sleeve. The upper surface of the floating top base is provided with a second matching surface corresponding to the first matching surface. The second matching surface spirally rises around the second direction. The locking assembly is arranged on the adjusting sleeve and the supporting base. The adjusting wrench is partially arranged around the side of the adjusting sleeve. The adjusting wrench can drive the adjusting sleeve to rotate around the first direction, so that the adjusting sleeve drives the second matching surface to be lifted through the first matching surface, and the floating top base is lifted relative to the supporting base. In this way, the height of the stand column can be adjusted, the height of the stand column in the storage library is conveniently adjusted, and the levelness of the track at the top of the storage library is ensured.

The utility model discloses a laser rangefinder for lifting a table board, which comprises a shell and a laser ranging module arranged in the shell, the shell is provided with a probe hole for laser to penetrate through, the shell is also provided with a notch part, the inner side of the notch part comprises a first reference surface and a second reference surface which extend in different directions, and the first reference surface and the second reference surface are arranged on the shell. The extension direction of the first reference surface is perpendicular to the extension direction of the probe hole. According to the lifting table, the ground clearance of the lifting table board can be accurately measured through the laser range finder, whether the lifting table board is inclined or not can be conveniently judged, and the laser range finder can be rapidly positioned on the lifting table board so that measurement can be conveniently conducted. In addition, the utility model further discloses an electric lifting table provided with the laser range finder.

The utility model discloses a slope photovoltaic belt two-way track sliding type light pile foundation device which comprises a drilling machine unit, a rack unit, a moving unit and a track unit, the drilling machine unit is arranged on the moving unit through the rack unit, and the moving unit is arranged on the track unit in a sliding mode; the drilling machine unit mainly comprises a drilling machine and a drilling rod thereof; the rack unit is mainly composed of a vertical support, a lifting mechanism and a vertical adjusting mechanism. The moving unit is mainly composed of a front moving plate and a rear moving plate. The rail unit is mainly composed of a longitudinal rail and a transverse rail. When the pile foundation device is applied to construction, operation is simple and stable, levelness and perpendicularity of a drilled hole can be guaranteed, and construction errors are reduced. Moreover, the device is convenient to move and small in working surface, does not need road occupation construction, ensures normal passage of a lane, avoids complicated road occupation construction application procedures, ensures the construction period to a certain extent, and provides good conditions for subsequent installation of an upper photovoltaic bracket.

This invention discloses a fixture and method for machining and positioning oblique holes in the sidewalls of measuring pipes. The fixture includes a clamping platform and two sets of built-in cooling components. The clamping platform is equipped with a support assembly and a clamping and positioning mechanism. The clamping and positioning mechanism includes fixed and movable clamping components symmetrically arranged on the clamping platform. Each of the fixed and movable clamping components has a centering component at one end facing the other. The two centering components are respectively used to abut against the two ends of the measuring pipe section to achieve self-aligning clamping and positioning of the measuring pipe section. The two sets of built-in cooling components are symmetrically arranged on the two inner sidewalls of the measuring pipe section to be drilled. Each built-in cooling component has a cooling channel inside, which is connected to an inlet pipe and an outlet pipe, respectively. The inlet and outlet pipes are used to circulate cooling medium into the built-in cooling components. The beneficial effects of this invention are: it solves the technical problems of poor positioning accuracy and difficulty in controlling thermal deformation of the pipe body in existing oblique hole machining processes.

The invention relates to the technical field of prefabricated parts, in particular to a prefabricated concrete bridge hollow slab which comprises a hollow slab body, end connecting piers and end connecting frames, two round holes are formed in the hollow slab body, the end connecting piers are arranged at the two ends of the hollow slab body, two butt joint holes are formed in each end connecting pier, and the end connecting frames are arranged on the end connecting piers. A butt joint hole is formed in the hollow plate body, two positioning plates are fixedly installed in the butt joint hole, a connecting assembly is arranged on the hollow plate body, the end connecting frames are arranged at the two ends of the hollow plate body, positioning mechanisms are arranged on the end connecting frames, auxiliary alignment mechanisms are arranged on the end connecting frames, and detection auxiliary assemblies are arranged on the end connecting frames; by arranging the end connecting piers and the connecting assemblies, when the hollow plate body is erected, the hollow plate body and the end connecting piers are installed in an aligned mode through the connecting assemblies, when the hollow plate body is installed, the installation position of the hollow plate body can be limited, the installation position of the hollow plate body is prevented from deviating, and the installation efficiency of the hollow plate body is improved. And the overall mounting effect of the hollow slab body is improved.

The utility model relates to the field of supporting devices, and discloses a floor metal armoring seam supporting and installation construction device which comprises a T-shaped base plate, vertical square steel pipe supports are fixedly connected to the left side and the right side of the upper portion of the T-shaped base plate respectively, screw rod openings are formed in the upper portions of the vertical square steel pipe supports, threaded rods are slidably connected into the screw rod openings, and the threaded rods are fixedly connected with the T-shaped base plate. The outer sides of the threaded rods are in threaded connection with fixing nuts, the upper portions of the threaded rods are fixedly connected with adjusting handles, and the sides, close to each other, of the lower portions of the threaded rods are fixedly connected with supporting plates. According to the utility model, through the cooperation of the adjusting handle, the fixing nut, the threaded rod, the supporting plate and other structures, the supporting device can flexibly adjust the horizontal height of the metal armoring seam up and down, so that the levelness and flatness of a steel plate at the top of the metal armoring seam can be better ensured, and the metal armoring seam can be conveniently installed and fixed; and therefore, the surface flatness and levelness of the emery terrace ground are perfectly matched with those of the emery terrace ground.

This utility model relates to the field of road surface maintenance technology in municipal engineering, and more particularly to a leveling device for road surface maintenance in municipal engineering. It solves the problem in existing technologies where the height adjustment mechanism lacks a locking device, leading to loosening of the adjustment components and loss of height control due to vibration during operation. The leveling device for road surface maintenance in municipal engineering includes two mounting frames and a mounting plate positioned between the two frames. Both sides of the bottom of each mounting frame are equipped with casters, and each mounting frame contains a lifting rod. The two ends of the lifting rod are connected to the interior of the mounting frame via a vertical guide structure, and the top of the lifting rod is connected to the top of the mounting frame via a vertical adjustment structure. This utility model, through the cooperation of the lifting rod and the detachable locking structure, achieves rigid fixation after adjustment, effectively preventing height changes caused by operational vibration and improving the stability and accuracy of the leveling operation.

This invention relates to the field of concrete testing, and more particularly to a concrete permeability testing device, comprising an installation table and a platform. The platform is horizontally mounted on top of the installation table, and multiple bases are mounted on the platform. A test mold body is detachably mounted on the top of each base, and a test sample is placed inside the test mold body. The installation table contains a liquid filling structure and a pressurizing structure, both of which are connected and communicate with the bases. This invention utilizes a downward-pressing external threaded ring that engages with an internal threaded ring fixedly mounted on the platform. With the aid of a circumferentially positioned lever on the downward-pressing external threaded ring, the operator only needs to hold the lever and rotate the downward-pressing external threaded ring to quickly and firmly press and fix the test mold onto the top of the base. This replaces the traditional method of tightening multiple bolts individually, greatly simplifying the test mold assembly and disassembly operations, significantly improving testing efficiency, and reducing the labor intensity of the operator.

The present invention discloses a self-leveling steel pipe welding auxiliary bracket, including a front and a rear group of parallel support frames, each group of support frames is provided with an electric screw lifting device and a locking and fixing device; the two ends of the pre-welded steel pipe are respectively suspended and fixed by the front and rear support frames to match with another pre-welded steel pipe group; the support frame is a steel frame of a door-type structure, and the electric screw lifting device is composed of an electromagnetic brake motor, a turbine screw lifter, a chassis, etc., and an inclination sensor is installed on the steel plate base above the hoop, which can measure the vertical angle deviation of the steel pipe and transmit the voltage corresponding to the inclination to the electromagnetic brake motor controller. The controller controls the electromagnetic brake motor to rotate after calculating the screw lifting height through an algorithm, and drives the turbine screw lifter to adjust the height of the steel pipe up and down. The bracket of the present invention is easy to install and use, can realize the adjustment of the level, height and axial direction of the steel pipe, and can be folded and carried, which can effectively meet the requirements of on-site installation and welding construction of steel pipe segments.

This application discloses a grinding fixture for probes and its grinding apparatus. The fixture includes a mounting head, a mounting platform, and a connecting platform. Through this application, when grinding new probes, the design of the mounting head allows for the simultaneous grinding of one or more new probes, thereby improving grinding efficiency and avoiding the need for replacing the entire card, significantly reducing replacement costs. The new probes are then sequentially passed through corresponding positions on the mounting head, so that the tails of all new probes abut against corresponding protrusions in the simulated area. This simulates the pressure experienced by the probes during actual operation, allowing the new probes to better replace the replaced burnt-out probes after grinding. Then, the position of the mounting platform is adjusted using appropriate adjusting components to ensure that the levelness of the simulated area meets the grinding requirements, ensuring that the tips of all new probes are on the same plane, thus guaranteeing that the lengths of the new and old probes remain consistent.

The utility model discloses an unmanned aerial vehicle take -off and landing platform that high stability belongs to take -off and landing platform technical field, including support stage, the movable slot is established at support stage top, the movable slot is slidably connected with the landing board, the landing board bottom is installed with the protection mechanism, the protection mechanism is including a plurality of connecting slots, a plurality of built -in slots and a plurality of connecting plates, in the utility model, when unmanned aerial vehicle lands on the landing board, make the landing board move down, and then make the landing board drive extruding block to move down, so that extruding block extrude the pressure block, make the pressure block move to one side, and the pressure block moves and drives the connecting plate to move outward, and the other end of connecting plate drives the connecting rod one end to move to one side, and then make the other end of connecting rod move upward, so that the connecting rod drives the connecting block to move up through the hinged block, and the connecting block drives the protection frame to move up, so that the protection frame shields the landing area, so as to avoid unmanned aerial vehicle damage caused by unmanned aerial vehicle slide.

The utility model discloses a universal positioning device for magnetic shoe center magnetic detection, which belongs to the technical field of magnetic shoe center magnetic detection and comprises a base, a connecting seat is connected above the base, a manual chuck is connected above the connecting seat and comprises an adjusting handle, and a gauss meter mounting component is connected above the base and positioned on one side of the connecting seat. According to the utility model, the to-be-detected casing is positioned through the manual chuck, products of the same model are only required to be corrected during the first detection, the position does not need to be adjusted for multiple times in the subsequent detection, the detection precision is ensured, the detection efficiency is improved, and in addition, the device is also suitable for the detection of different models; according to the utility model, the manual chuck is connected with the connecting seat through the bearing, so that the manual chuck can rotate relative to the connecting seat, thereby ensuring the accuracy of center magnetic detection.

The utility model relates to the technical field of air conditioner manufacturing, and discloses a heat exchanger fin material receiving device which comprises a material receiving trolley, a material receiving frame assembly and a material moving frame assembly, and the material receiving frame assembly comprises a material receiving base and a material receiving needle; the material receiving base is fixed on the material receiving trolley; the material moving frame assembly is located on the upper side of the material receiving base and comprises a material moving frame separably supported on the material receiving trolley, an upper supporting plate fixed to the material moving frame and a telescopic supporting plate arranged below the upper supporting plate. The upper supporting plate is provided with a first through hole allowing the material receiving needle to penetrate through and a second through hole allowing the auxiliary material taking needle to penetrate through. The telescopic supporting plate is provided with a third through hole for the receiving needle to penetrate through, and the auxiliary taking needle penetrates through the second through hole and can be supported on the telescopic supporting plate. And meanwhile, during material receiving, the telescopic supporting plate is close to the upper supporting plate and is supported on the platform of the material receiving trolley, so that the levelness of the upper supporting plate can be ensured, and the material receiving needle is not easy to deflect.

This invention discloses a remotely controllable multi-degree-of-freedom conveyor, comprising: a base plate, a height adjustment component 1 at the top of the base plate, a conveyor 1 mounted on the height adjustment component 1, a slide rail fixedly connected to the top of the base plate, a slider slidably connected to the top of the slide rail, a height adjustment component 2 fixedly connected to the top of the slider, a conveyor 2 mounted on the top of the height adjustment component 2, and a telescopic component on the conveyor 2 for adjusting the effective conveying length of the conveyor 1 and the conveyor 2; in this invention, the telescopic component utilizes a motor 1 to drive a gear and rack meshing transmission, allowing for remote and precise control of the sliding stroke of the conveyor 2 on the slide rail, flexibly changing the effective conveying length of the conveyor 1 and the conveyor 2. The telescopic components, symmetrically arranged on both sides, provide synchronous transmission, resulting in uniform force distribution and stable operation. The meshing transmission structure has high transmission efficiency and is not easily worn, adapting to different conveying distance requirements, significantly improving the equipment's adaptability range. Moreover, the adjustment process does not require manual pushing or pulling; it can be completed remotely.

The utility model relates to the technical field of wall surface trowelling, in particular to a gypsum trowelling device for ceramic tile decoration, which comprises a base, a spliced frame is mounted on the base, a holding rod is mounted in the frame in a sliding manner, adjusting parts are symmetrically mounted on the holding rod, trowelling parts are mounted at the other ends of the adjusting parts, and the trowelling parts can be controlled to be close to or far away from the frame through the adjusting parts; the frame comprises a plurality of groups of limiting rods, two groups of limiting rods are symmetrically fixed at the top end of the base, and the other limiting rods can be mutually inserted according to height requirements; at least two groups of inserting rods are fixed at the bottom end of the limiting rod, and inserting grooves are formed in the top end corresponding to the inserting rods. According to the leveling device, the limiting rods, the inserting rods, the inserting grooves and the like are arranged and assembled to form the frame, after the leveling piece is started, the leveling piece is pushed to move along the gypsum face, due to the constraint and limitation of the frame, the pressure applied by the leveling piece to the gypsum face is constant, uniform leveling at different positions can be achieved, the treatment effect is good, and the overall levelness of the wall face is guaranteed.

The invention belongs to the technical field of circuit board testing, and discloses a circuit board testing device, a circuit board testing method and application of the circuit board testing device in electronic information engineering.The circuit board testing device comprises a detection assembly, and the detection assembly is connected with two driving assemblies; the ends, away from the detection assembly, of the two driving assemblies are connected with a sealing assembly, the detection assembly comprises a bearing plate, and through mutual cooperation of a buffer assembly, an air hole and a clamping assembly, on one hand, it is ensured that the contact rate of the working assembly is controllable when the working assembly approaches a circuit board; on one hand, interference of the working assembly on the position of the circuit board in the moving process can be reduced while the working assembly is prevented from making direct contact with the circuit board, on the other hand, gas in the cavity is exhausted through the gas holes through compression of the buffer shell, welding points on the circuit board are tested through the gas generated by the gas holes, and the welding stability of the welding points is ensured.

The invention discloses an oil cooling mechanism of a main shaft cooling plate, which comprises a main shaft box, a first motor plate is arranged on the main shaft box, a second motor plate is arranged on the first motor plate, a main shaft motor is arranged on the second motor plate, and a coupler is arranged at the output end of the main shaft motor. The main shaft and the main shaft box have the advantages that the mounting efficiency is improved while the mounting precision is guaranteed, the problem of precision correction during mounting of the main shaft and the main shaft box is solved, and the heat conduction path is lengthened by the two motor plates, so that the heat conduction time is prolonged, the heat transfer is improved, and the oil inlet, the cooling oil groove and the oil outlet are formed in the second motor plate, so that the heat conduction efficiency is improved. The second motor plate has the function of transferring heat generated by the spindle motor, heat conduction is blocked, meanwhile, heat of the spindle motor is further transferred, thermal deformation of the spindle motor and the spindle is avoided, the precision of the machine tool is kept, and the service life of the machine tool is prolonged.