29931 results about "Threaded rod" patented technology

The utility model discloses a hub spinning machine which comprises a processing chamber and a hub blank, two opposite sides of the inner wall of the processing chamber are respectively provided with a rough rotary knife and a fine rotary knife, the bottom end of the processing chamber is provided with a piece jacking mechanism and a deviation rectifying mechanism, the top end of the processing chamber is provided with an opposite jacking mechanism, and the opposite jacking mechanism comprises a piece jacking block. The machined part top seat is located in the containing ring, the hub blank is located between the part ejecting block and the machined part top seat, the upper end of the machined part top seat is in the shape of a circular truncated cone, it can be guaranteed that the angle of the hub blank does not deflect when the hub blank is machined, and the yield of finished hub products is increased. The clamping connection is formed by the pressing block and the clamping groove, the power threaded rod and the fixing plate are rotationally connected, the power threaded rod and the meshing threaded rod are connected in a meshing mode, and the meshing threaded rod and the sliding sleeve are rotationally connected, so that it can be guaranteed that a hub blank is stable and does not shake during machining, and the machining quality is guaranteed; and the device can adapt to hub blanks of different models.

The invention discloses an automobile light-weight aluminum part connecting process and equipment based on laser welding, and relates to the technical field of automobile aluminum part laser welding, the equipment is based on a base body, a man-machine interaction control screen is arranged at the front end of the base body, and a driving motor and a threaded rod are arranged on the side wall of the base body; a lateral protection metal plate is fixed to the top end of the tool, a parameter adjusting plate is arranged on one side of the tool, a rotary station driving motor and a self-adaptive clamping tool are fixed to the parameter adjusting plate, an anti-scratching gasket is arranged on the inner wall of the tool in the circumferential direction, and the outer side of the tool is connected with a feeding air cylinder through a linkage lug base. The air cylinder is connected with a pressure controllable extrusion table through a first linkage lug base and a force transmission bending arm. A main bearing support is further welded to a base body, a laser welding head is installed on the main bearing support through a jacking air cylinder, a linear push rod and a fine adjustment lifting table, adjustment stability is guaranteed in cooperation with a guide structure, aluminum parts are prevented from being damaged through flexible clamping, precision is improved through multi-dimensional adjustment, and the precision welding requirement is met.

The aluminum alloy structure bending equipment for bridge construction comprises a workbench, the top of the workbench is movably connected with a placing assembly, the placing assembly is provided with a slide way assembly, the slide way assembly is movably connected with two sets of supports, and conveying rollers are movably connected between the tops and the bottoms of the supports; a driving motor is fixed to the outer wall of the top of the support, the output end of the driving motor is connected to the top of a conveying roller through a coupler, the conveying roller is used for conveying the aluminum alloy structure, the support is fixed to the outer wall of the top of the workbench, and a bending roller is movably connected to the inner wall of the top of the support. Through threaded connection of the two-way threaded rod and the supports and the guiding effect of the guiding plate, the spacing distance between the conveying rollers on the two supports can be easily adjusted only by driving the two-way threaded rod to rotate, so that the two-way threaded rod is rapidly matched with aluminum alloy structures with different outer diameters, and preparation work before feeding is greatly simplified.

The utility model discloses a detection device and a control system for settlement of a lap joint surface of a new roadbed and an old roadbed, and relates to the technical field of road engineering monitoring, the detection device comprises a first support plate, a second support plate, two solar panels, two vibration sensors and two storage batteries, a placing box is mounted on the supporting rod, a laser displacement sensor and an industrial camera are mounted in the placing box, a detection plate is mounted on the second supporting plate, and a fluorescent graduated scale is mounted on the detection plate; according to the utility model, the traditional threaded rod and threaded cylinder adjusting mode is replaced by optimizing the adjusting mechanisms, the problems that a threaded structure is easy to wear and block and the manual operation efficiency is low are effectively solved, and a composite monitoring mode of the laser displacement sensor, the industrial camera and the fluorescent graduated scale is adopted, so that the monitoring precision is improved. And a multi-dimensional auxiliary assembly is combined to improve the reliability of the system.

The invention relates to the technical field of spiral finned tube laser welding, in particular to a solid spinning spiral finned tube laser welding machine. Comprising a first base and a second base, a threaded rod is rotationally connected between the first base and the second base, and the threaded rod is in threaded connection with a machining assembly; the first motor drives the driving belt wheel to rotate, so that the machining assembly conducts welding operation of the spiral fins on the surface of the base tube while moving, and through the transmission relation between the driving belt wheel and the driven belt wheel, the base tube synchronously rotates while the machining assembly conducts moving machining; according to the spiral finned tube machining device, the machining assembly is arranged to meet the welding requirement of the spiral finned tube, movement of the machining assembly and rotation of the base tube are controlled at the same time through the same driving structure, the stability and consistency in the machining process are improved, the machining speed can be adjusted more conveniently, fin welding is more uniform, and the welding quality is effectively improved.

The utility model discloses an oxyhydrogen flame welding and cutting device, which relates to the field of oxyhydrogen flame welding and cutting, and comprises a shell, an oxygen compression bottle and a hydrogen compression bottle are respectively arranged at the lower part in the shell, a partition plate is arranged in the shell, and a conveying pipe is arranged at the bottom of the partition plate. By arranging the dismounting assembly, when the oxygen compression bottle or the hydrogen compression bottle needs to be replaced, the threaded rod can be rotated to move upwards and drive the movable ring to move upwards, the movable ring drives the movable barrel to move upwards, and after the movable barrel is moved out of the air outlet pipe, a worker can take the oxygen compression bottle or the hydrogen compression bottle out of the shell; a new oxygen compression bottle and a new hydrogen compression bottle are placed in the shell, then the threaded rod is rotated in the reverse direction, the movable ring moves downwards, the movable barrel is inserted into the gas outlet pipe, and therefore the oxygen pipe or the hydrogen pipe can be connected with the gas outlet pipe, and the oxygen compression bottle or the hydrogen compression bottle can be rapidly disassembled and assembled in the mode.

The invention relates to the technical field of welding, and provides a steel pipe welding auxiliary device for steel furniture production, which comprises an adjusting mechanism, a control mechanism is fixedly mounted on the inner left side of the adjusting mechanism, a fixing mechanism is fixedly mounted at the inner upper end of the adjusting mechanism, and the adjusting mechanism comprises a base, a transmission rod and a gear motor. Mounting bins are fixedly connected to the two sides of the upper end of the base correspondingly, lifting bins are slidably connected to the interiors of the mounting bins correspondingly, first threaded rods are in threaded connection to the lower ends of the lifting bins correspondingly, and first bevel gears are fixedly connected to the lower ends of the first threaded rods correspondingly. Through the cooperation of the adjusting mechanism and the control mechanism, the adjusting mechanism of different welding surfaces at the welding seam is optimized, the height change amplitude of the seam can be effectively controlled, obvious lifting of the seam is avoided, the stability of the welding process and the welding quality are guaranteed, the operation intensity of workers is reduced, and the production efficiency is improved. And the comfort and the convenience in the operation process are improved.

The invention relates to the technical field of welding, in particular to a welding device special for a movable angle steel tower foot. Comprising a mounting platform, a to-be-welded tower foot is placed on the mounting platform, a positioning mechanism is arranged above the outer wall of the mounting platform, and a triggering mechanism for triggering the positioning mechanism is arranged on the outer wall of the mounting platform; the positioning mechanism comprises positioning frames fixedly arranged on the two sides above the outer wall of the mounting platform, first threaded rods are rotationally arranged above the outer walls of the positioning frames, positioning pieces are slidably arranged on the outer walls of the first threaded rods, and the positioning pieces are provided with cross-shaped grooves for containing the upper portions of the junctions of tower feet to be welded. The two ends of a to-be-welded tower foot are placed between the two positioning pieces for preliminary positioning, then the positioning piece located above is pressed by moving the triggering mechanism to trigger the two positioning pieces, and therefore the two ends of the to-be-welded tower foot are stably clamped at multiple angles, workers do not need to operate a plurality of clamping units one by one, and the working efficiency is improved. And the device is more convenient to use, so that the welding efficiency of the device on the tower foot of the angle steel tower is improved.

The invention relates to the technical field of photovoltaic panel welding, in particular to a workpiece feeding device of a bus bar welding machine, which comprises two fixing frames, feeding devices, a supporting device and a pushing device, the uniformly distributed feeding devices are mounted at the top of the fixing frames, the supporting device is arranged between the two fixing frames, and the pushing device is mounted on the top of the fixing frames. The device comprises a fixed frame, a driving motor, a driving shaft, a mounting frame, a fixed plate, a driving belt pulley, a driven belt pulley, a belt main body, a fixed shell, a supporting shell, a supporting wheel, a limiting plate, a threaded rod, a nut, a limiting rod, a rubber ring, a pushing spring and a dismounting main body, the driving belt wheel, the belt main body and the driven belt wheel can be driven to rotate through the driving motor and the driving shaft, the belt main body is attached to the supporting wheel so as to support the belt main body, the belt main body can be attached to the photovoltaic module all the time, and stable feeding of the photovoltaic module is guaranteed.

The invention relates to the technical field of automobile part machining, and discloses a sheet punching device for automobile part machining, which comprises a punching table, and further comprises a recycling hopper fixedly connected to the bottom of the punching table, and a rectangular hole is formed in the punching table and used for recycling punching leftover materials into the recycling hopper; the support is fixedly connected to the bottom of the recycling hopper and used for supporting the recycling hopper and the punching table; and the moving mechanism is arranged above the punching table and is used for moving a welding gun head mounted on the moving mechanism. The lower adjusting rod driven by the two-way threaded rod and the upper adjusting rod pre-tightened by the spring form'up-down elastic clamping ', and can automatically adapt to a thin plate; in the clamping process, the first spray hole and the second spray hole spray inert gas synchronously, local protective atmosphere is formed on the upper surface and the lower surface of the notch, oxidation ablation is reduced, the hole edge heat affected zone is reduced, and the precision requirement of the high-strength welding hole of the automobile is met.

The utility model discloses a one-way valve with a pressure relief protection function, and particularly relates to the technical field of one-way valves, which comprises a valve body, a discharge pipe is arranged at one end of the valve body in a penetrating manner, an outer valve sleeve is arranged on one side of the valve body in a penetrating manner, a pressure relief mechanism is arranged in the outer valve sleeve, and the pressure relief mechanism comprises a pressure relief valve seat arranged in the outer valve sleeve. A guide groove is formed in the outer valve sleeve, a guide ring is slidably arranged in the guide groove, a pressure relief valve element is fixedly arranged in the guide ring, a pressure relief spring is fixedly arranged at the top of the pressure relief valve element, an adjusting disc is slidably arranged on the inner wall of the valve body, and a threaded rod is rotatably arranged on one side of the adjusting disc. When the fluid pressure abnormally rises, the pressure relief channel can be automatically opened, the one-way valve and a conveying system are effectively protected, the position of the pressure relief valve element can be conveniently and manually adjusted, pressure relief parameters are flexibly controlled, and the requirements of different working conditions are met.

The application discloses a bipolar membrane electrodialysis device, which comprises an outer box body and further comprises a liquid inlet mechanism, a plurality of electrodialysis mechanisms and a plurality of filtering mechanisms. The filtering mechanism comprises a filtering box, a driving filtering assembly and a liquid feeding assembly. The driving filtering assembly comprises a motor installed on the top of the filtering box, the output shaft of the motor is fixedly connected with a threaded rod, the outer periphery of the threaded rod is threadedly connected with a filtering plate slidingly connected to the inner wall of the filtering box, and the bottom inner wall of the filtering box is fixedly connected with a plurality of plug rods matched with filtering holes of the filtering plate. Raw water is delivered to the inside of the filtering box through the liquid inlet mechanism, is actively filtered without turbulence through the driving filtering assembly, is delivered to the corresponding electrodialysis mechanism through the liquid feeding assembly and is further subjected to electrodialysis treatment. The filtering plate and other components are arranged to filter out the solid impurities mixed in industrial glucose acid salt, so that the bipolar membrane electrodialysis process and the bipolar membrane body are not affected.

A motor rotor iron core shaft pressing tool disclosed by the present invention comprises an equipment frame and a support, a fixing frame is fixedly connected to the center between the equipment frame and the support, an iron core seat is fixedly connected to the center of the fixing frame in an embedded mode, a tray is fixedly connected to the bottom of the iron core seat, a center hole is formed in the center of the interior of the tray, and the iron core seat is fixedly connected to the bottom of the tray. Positioning holes are formed in the peripheral side of the center hole, a motor is fixedly connected to the top of the equipment frame, and a motor driving shaft penetrates through the equipment frame and is fixedly connected with a two-way threaded rod. Through mutual cooperation of the positioning disc, the electromagnet, the positioning rod, the positioning needle and the pressing disc, the iron core seat with universality is constructed, the iron core seat can adapt to positioning of rotor iron cores with hole grooves of different sizes and shapes, when the rotor iron cores are subjected to main shaft pressing work, the iron cores do not need to be customized and replaced according to the specifications of the iron cores, and the working efficiency is improved. And manpower is saved, and the working efficiency is effectively improved.

The invention discloses a wire drawing processing device for a steel wire rope, and relates to the technical field of wire drawing processing, the wire drawing processing device comprises a mounting table, an unwinding reel is mounted on the mounting table, a wire die is movably arranged on the mounting table, a working table is mounted on the mounting table, a limiting groove is formed in the working table, the wire die is movably mounted in the limiting groove, and a wire groove is formed in the working table; according to the wire drawing machine, by arranging the winding wheel, the threaded rod, the arch-shaped clamping frame, the powder bin and the like, segmented wire drawing is achieved through the arrangement of the arch-shaped clamping frame on the winding wheel when wire drawing is conducted on the steel wire rope, the wire drawing efficiency is improved, and the wire drawing efficiency is improved. And the steel wire rope can be clamped in sections when being broken, so that the tightened steel wire rope is prevented from driving the wire mold to jump out of the groove, the use safety of the structure is further improved, the occupied area is small, and the use is convenient.

An installation tool for mounting a display on a wall having a wall mount includes a first leg and a second leg disposed in parallel relationship with the first leg. A crossbar is slidably connected to the first leg and the second leg. A holder is configured to accept the display, the holder slidably connected to the first leg and the second leg. A threaded rod includes a connector for engaging the cross bar. A lifter is configured to lift the holder, the lifter positionable along the threaded rod. The display if installed in the installation tool and lifted to a vertical position where it can be connected to the wall mount.

The invention relates to the technical field of hydraulic valves, and discloses a buffer overflow valve which comprises a shell, a first sealing ring is arranged on the surface of the shell, a connecting block is fixedly connected to the right end of the shell, an adjusting assembly is arranged in the connecting block, and a storage assembly is fixedly connected to the side, close to the shell, of the adjusting assembly. A moving assembly is arranged in the storage assembly, a spring is arranged between the storage assembly and the moving assembly, the adjusting assembly comprises a threaded rod, the surface of the threaded rod is in threaded connection with a connecting block, and the surface of the threaded rod is in threaded connection with a locking nut. A closed cavity is formed between a connecting column and a fixing seat, a second sealing ring is used for sealing, a valve element and an oil way in the connecting column are communicated with the closed cavity, the cavity is filled with oil, and when the oil on the left side of the valve element rises, due to the existence of the oil in the closed cavity, the valve element cannot instantly leave a valve seat at the bottom of a valve block; therefore, the buffer overflow valve can be opened at low pressure, and pressure impact cannot be generated.

The invention discloses a viscometer for detecting the quality of a new chemical material product, and relates to the technical field of viscometers, the viscometer comprises a base, an ultrasonic cleaning box is fixed on the base, a material moving mechanism for realizing automatic loading and unloading of a sample cylinder is also fixed on the base, a bracket is fixed on the rear side of the base, and the bracket is connected with the ultrasonic cleaning box. A first motor is fixed to the support, an output shaft of the first motor is connected with a threaded rod connected to the support through a bearing, and the threaded rod is connected with the movable frame so that the movable frame can move in the Z-axis direction. According to the viscometer for detecting the quality of the new chemical material product, through linkage regulation and control of the adjusting mechanism, the material moving mechanism and the detection mechanism, cleaning and switching of the detection mechanism and feeding and discharging of the sample cylinder are cooperatively matched, 180-degree transposition of the detection mechanism and 90-degree automatic material moving of the sample cylinder driven by the rotary table are synchronously achieved, and therefore assembly line operation can be achieved, and the working efficiency is improved. And manual participation is not needed, the detection efficiency is greatly improved, and batch detection of new chemical materials can be effectively adapted.

The utility model relates to the technical field of welding devices, and discloses a thin-wall copper pipe welding device which comprises a working table, the top of the working table is fixedly connected with a welding frame, the side wall of the working table is fixedly connected with a first servo motor, the output end of the first servo motor is fixedly connected with a first threaded rod, and the output end of the first threaded rod is fixedly connected with a second threaded rod. The outer surface of the first threaded rod is in threaded connection with a moving block, the top of the moving block is fixedly connected with a moving plate, and the side wall of the moving plate is fixedly connected with a second servo motor. According to the pipeline welding part polishing device, through the buffer block, the connecting rod, the stabilizing frame, the reset spring and the polishing block, the stabilizing frame is used for supporting a welding part, meanwhile, the polishing block is used for polishing the welding part of a pipeline, and the situation that workers are injured in the taking process due to the fact that the welding part is inconvenient to polish is avoided; and the working efficiency of the welding device is improved.

The invention relates to the field of valve pressure testing, and discloses a valve pressure testing device which comprises a rack, the outer wall of the rack is rotatably connected with a first hydraulic cylinder, the output end of the first hydraulic cylinder is rotatably connected with a first protective shell, and the inner bottom of the rack is fixedly connected with a second hydraulic cylinder. A supporting bottom plate is fixedly connected to the output end of the second hydraulic cylinder, a second protective shell is fixedly connected to the top of the supporting bottom plate, fixing plates are installed outside the first protective shell and the second protective shell, and clamping assemblies are installed on the opposite sides of the two fixing plates. Transmission assemblies are arranged on the sides, away from each other, of the two fixing plates. The first threaded rod rotates to drive the fixing ring and the elastic sealing ring to penetrate into the valve, compared with external sealing, the deep design enables the elastic sealing ring to make direct contact with the sealing face in the valve, and possible irregular structure or impurity interference outside the valve is avoided.

The utility model relates to the technical field of semiconductor wafers, and discloses a semiconductor wafer thickness measuring device, which comprises a moving assembly and a compression measuring assembly, the moving assembly is arranged below the compression measuring assembly, the moving assembly comprises a fixed bottom plate, the upper end of the fixed bottom plate is connected with a moving motor, and the moving motor is connected with the compression measuring assembly. The output end of the moving motor is fixedly connected with a threaded rod, the threaded rod is connected with a threaded block, the upper end of the threaded block is connected with a sliding block, and the sliding block is connected with a sliding groove. According to the utility model, the thickness information of a plurality of positions can be rapidly acquired, the flexibility during measurement is improved, the measurement work of the thickness of the whole wafer can be rapidly completed, the measurement efficiency is improved, different areas of the semiconductor wafer can be measured, the distribution condition of the thickness of the semiconductor wafer can be completely mastered, and the measurement accuracy is improved. And omission of areas possibly having abnormal thickness is avoided, so that the measurement is more comprehensive.

The invention relates to the technical field of rotary cultivators, in particular to a rotary cultivator with a residual film recycling function. Comprising a front wheel; first rotating shafts are fixedly connected to one sides of the two front wheels, second rotating shafts are fixedly connected to one sides of the two rear wheels, a recycling machine shell is jointly and rotationally connected between the two first rotating shafts and the two second rotating shafts, and a tillage machine is arranged on one side of the recycling machine shell. Through cooperation of a water pump, a second threaded rod, a spraying bin and a spray head, broken films on a screen mesh plate can be dissolved, soil blocks can be decomposed, the problem that a large amount of time is spent on sorting residual films and straw by workers in the follow-up process is solved, a first motor, an air pump, a second motor and the water pump are controlled through a controller, and the working efficiency is improved. Complex residual film recovery and soil treatment processes are integrated into a highly automatic and intelligent operation system, the soil humidity, the residual film density and the impurity content are monitored in real time through a sensor, the suction force of an air pump and the water pressure of a water pump are intelligently adjusted, and soil moisture loss and energy consumption are reduced to the maximum extent while it is ensured that residual films are efficiently recovered.

The invention relates to the technical field of laser cutting, and provides a laser cutting machine for a tool cabinet shell, the laser cutting machine comprises a machine tool, a placing plate is fixedly mounted on the surface of the machine tool, a sliding plate is slidably mounted at the top of the machine tool, and the laser cutting machine for the tool cabinet shell rotates under the action of the output end of a motor through a threaded rod. Due to the fact that the threaded rod and the side clamping block are in threaded connection, the threaded rod rotates to drive the side clamping block to move in the direction close to the material until the side clamping block makes contact with the material and clamps and fixes the side face of the material, at the moment, multi-direction clamping and fixing of the material are achieved, and the problem that the material deviates due to vibration and light beam impact force during laser cutting is solved; it is ensured that the cutting contour of the tool cabinet shell is accurate, and the rejection rate is reduced; by means of the technical scheme, the technical problem that in the prior art, in the cutting process of materials, the production quality and the cutting effect of the materials are affected due to vibration or improper displacement, and therefore the qualification rate of finished material products is affected is solved.

The invention relates to automobile electronic component assembling and carrying equipment. The device is composed of a supporting mechanism, a feeding mechanism, a material dispersing mechanism, a vibration feeding machine and a feeding safety mechanism. The hopper lifts the capacitor shell to the conveying pipe through the conveying belt and the material plate; after being limited, the baffle enters the vibration feeding machine through the discharging pipe; the angle of the guide plate is adjusted through linkage of a threaded rod, a two-way rack rod and a second gear, and the drop point range can be adjusted in cooperation with a conical material scattering rod. The vibration feeding machine completes sorting and is guided out through the extending discharging plate; during feeding, the cover plate drives the eccentric bolt, the sliding rod, the swing cylinder and the swing plate through the first gear and the fluted disc, so that the I-shaped sliding sleeve enables the second coupler to be disengaged from the first coupler, and driving of the conveying belt is stopped; after closing, meshing is performed under the action of the spring; the device gives consideration to both low-material-level rapid feeding and high-material-level stable material storage, the feeding consistency is improved, and the operation safety is enhanced.

The invention discloses an unmanned aerial vehicle inspection device and method for electric power inspection, and relates to the technical field of electric power inspection. A mounting base is fixed to the front side of the unmanned aerial vehicle body, a second camera is mounted on the front side of the mounting base, a buffer assembly is mounted on the lower side of the unmanned aerial vehicle body, and the cable is shot by arranging the second camera; the moving assembly comprises fixing frames, a T-shaped block, a threaded rod, a limiting rod and a first motor, the two corresponding fixing frames are fixed to the lower side of the unmanned aerial vehicle body, the T-shaped block is arranged between the two fixing frames, a threaded hole is formed in the edge of the right side of the T-shaped block, and the threaded rod is in threaded connection with the interior of the threaded hole; and the threaded rod is rotationally connected to the interior of the fixing frame on the right side, a first motor is installed on the lower side of the fixing frame on the right side, residues attached to the surface of the cable can be cleaned, and meanwhile damage points of the cable can be marked.

A pipe cutting device includes a body unit, two roller units, a sliding unit, a threaded rod unit, and a control unit. The body unit includes two bodies each provided with a first receiving recess, a first pivoting section, and a second receiving recess. The sliding unit includes a slide and a cutting wheel. The slide is provided with a fourth receiving recess, a first pivot portion, a fifth receiving recess, and a sixth receiving recess. The threaded rod unit includes a rotation member and a threaded rod. The threaded rod is provided with a second pivoting section and a first screwing portion. The control unit includes a press member, a control member, and an elastic member. The control member is assembled with the press member and provided with a second screwing portion engaging the first screwing portion.

The invention relates to spline housing cold heading forming equipment, and relates to the technical field of spline housing machining equipment, the spline housing cold heading forming equipment comprises a workbench, a fixed die holder mounted on the workbench and a movable die holder matched with the fixed die holder, and further comprises a demolding mechanism mounted on the workbench and used for demolding a formed spline housing; the demolding mechanism comprises a driving box installed on the workbench, a lifting assembly installed in the driving box and used for driving the fixed mold base to vertically move, a first threaded rod driven by the lifting assembly to rotate, and an oil storage box installed in the driving box. The driving and conveying assembly is driven by the first threaded rod and sprays lubricating oil stored in the oil storage tank to the fixed mold base and the spline housing; and the overturning assembly is mounted in the driving box and is used for driving the fixed mold base to overturn when the fixed mold base vertically moves. The spline housing demolding device has the effect that indentation and deformation cannot be caused to the surface when the spline housing is demolded.

The utility model belongs to the technical field of gate valves, and particularly discloses a gate plate limiting mechanism for a hard sealing gate valve, which comprises a valve body, the outer surface of the valve body is fixedly connected with two symmetrical fixing blocks, one side of each fixing block is provided with an adjusting groove, and the inside of each adjusting groove is slidably connected with two symmetrical first moving rods. The limiting mechanism comprises two first moving rods, the interiors of the first moving rods are of hollow structures, the interiors of the two first moving rods are both slidably connected with second moving rods extending to the exteriors of the first moving rods, and the two second moving rods are both fixedly connected with positioning plates. The two-way threaded rod drives the two first moving rods to move relatively under the limitation of the adjusting groove, the two positioning plates can move relatively, meanwhile, the two positioning plates can clamp, position and limit an external pipeline, and therefore the device can be installed on the external pipeline more smoothly.

Described herein are fascia rail mounts that are attached to a structure, such as a deck. The disclosed fascia rail mounts include threaded rods that mate with holes in a railing post to allow the railing post to be attached to the structure using the threaded rods, the threaded rods extending from a side plate that is adjacent to a fascia beam of the structure. The disclosed rail mounts are attached to the structure prior to applying any layers designed to protect the structure such that the fascia rail mounts, including the threaded rods, receive the protective layers. A waterproof layer can be applied to the structure after the fascia rail mounts have been affixed so that the threaded rods of the fascia rail mounts extend past the waterproof layer without compromising the waterproofing of the structure. In other words, the waterproof layer forms a waterproof barrier even with the threaded rods extending from the fascia rail mounts through the waterproof layer.

The invention relates to the technical field of logistics transportation, in particular to a loading and unloading device for intelligent logistics and a using method of the loading and unloading device. A connecting frame is fixedly connected to one side of the bearing vehicle body, a bearing penetrates through the inner wall of the connecting frame, and a first threaded rod is fixedly connected to the inner ring face of the bearing. According to the loading and unloading device for intelligent logistics and the using method thereof, through cooperation of multi-direction movement adjustment of the adsorption assembly and the auxiliary assembly, flexible adjustment of the cargo loading and unloading direction is achieved, the adsorption assembly detects the cargo height in real time through a laser detector, and the position and height of the adsorption assembly are adjusted in real time; according to the method, the position accuracy of goods in the loading and unloading process is ensured, the stacking height of subsequent goods is adjusted according to the detected goods height, the goods are stacked in order, automatic operation of goods loading and unloading is achieved, manual intervention is reduced, the loading and unloading efficiency is improved, the labor cost is reduced, and the method is suitable for batch goods processing in logistics storage scenes.

The utility model discloses a central lifting rod anti-falling device of a wheel stacking excircle lifting appliance. The central lifting rod anti-falling device comprises a lifting ring, an anti-unhooking door frame, a lifting rod seat, a retractable lifting hook, a central lifting rod and a lifting hook, the upper ends of the lifting ring and the retractable lifting hook are movably arranged at the upper and lower ends of the suspender seat respectively; the suspender seat is vertically provided with a through hole and sleeves the outer side of the central suspender; the upper end of the central suspender is provided with an external thread, and the lower part of the rod body is sequentially sleeved with a conical sleeve, a slip ring and a transverse framework, and the lower end is provided with a cylinder through a bottom nut; the lower end of the retractable hook is movably connected with the bottom of the conical sleeve; the top of the mousing-hook door frame is fixedly welded to the top end of the center hanging rod, and the two sides of the mousing-hook door frame are fixedly welded to the fixing nuts respectively. The transverse framework is in a trifurcate shape, three outer ends of the transverse framework are movably connected with lifting hooks respectively, and the bottom end of each lifting hook is movably connected with a clamping plate respectively; and pull rods are movably arranged between the outer side of the cylinder and the three lifting hooks respectively. According to the utility model, the problem that the center lifting rod of the existing large wheel stacking excircle lifting appliance falls off can be effectively solved.