130results about How to "Increase or decrease distance" patented technology

The invention discloses a monitoring device and a real-time monitoring method for bridge vibration and deformation. The device comprises a laser emitter, synchronous light receiving and transmitting devices on a plurality of monitoring points, a centralized control and communication device, a remote monitoring center, etc. When a beam emitted by the laser emitter irradiates a reflection and transmission prism of the synchronous light receiving and transmitting device, the beam is split in proportion; a part of the split beam is reflected and received; the other part of the split beam is transmitted and passed, and irradiates a reflection and transmission prism of the next synchronous light receiving and transmitting device; and each synchronous light receiving and transmitting device can collect and store deformation (spot displacement) of a monitoring point, and upload the data of the deformation. The monitoring system can synchronously collect and process data on the deformation of all monitoring points, thereby realizing the measurement for vibration and deformation of a whole bridge. The monitoring device and the monitoring method can be used for measuring the deformation and the low-frequency vibration of various large-scaled bridge buildings. Furthermore, the device and the method have the advantages of rapid and real-time measurement, high accuracy of measurement, and real-time monitoring.

The invention provides a simple, safe, economic and high-efficiency steel column splicing three-dimensional adjusting method, which adopts a steel column adjuster developed by the inventor to adjust the verticality, height and width of a seam. The method has reasonable process, high positioning precision and advanced technology during the adjusting construction of a steel column, and has remarkable social benefits and economic benefits. The method comprises the following steps of: welding ear plates on a steel column and snapping a center line; lifting the steel column in place, placing the steel column adjuster between the upper ear plate and the lower ear plate according to four directions and adjusting the directions by abutting against the ear plates; fixing an ear plate connecting plate with the upper ear plate and the lower ear plate by using bolts; placing a magnetic plumb bob, adjusting and rotating a middle screw rod till the steel column is perpendicular; determining whether the steel column is perpendicular or not by comparing the distance between the lower end line and the upper end line of the magnetic plumb bob; adjusting the height and the seam while adjusting the verticality; temporally fixing the steel column by using electric welding after the three dimensions of the steel column are corrected; and dismounting a lifting hook and the magnetic plumb bob to finish the mounting by performing final welding and mounting of the steel column.

The invention discloses a serial multi-cavity arc-extinguishing lightning-protection device. The device comprises an installation fitting connected to the bottom of a protected circuit insulator and amulti-cavity arc-extinguishing lightning-protection body supported by the installation fitting, the top of the protected circuit insulator is provided with a punctured wire clamp electrode, and a serial main gap is arranged between the punctured wire clamp electrode and the multi-cavity arc-extinguishing lightning-protection body; and the two ends of the multi-cavity arc-extinguishing lightning-protection body are provided with end-portion fittings respectively, the multi-cavity arc-extinguishing lightning-protection body is internally provided with internal electrodes, a gas cavity is formedbetween every two adjacent internal electrodes, and the two internal electrodes positioned in the end portions are connected to the adjacent end-portion fittings respectively. Compared with the priorart, the serial multi-cavity arc-extinguishing lightning-protection device can be produced in a low-cost and batch manner; the device is characterized by simple manufacturing technology, low cost, high lightning protection performance, and stable operation and maintenance, and can be widely popularized; and after operation, the maintenance cost is extremely low, and basically, the device is freeof maintenance.

The invention provides a semi-automatic foldable table, and belongs to the technical field of foldable tables. The problems that an existing foldable table is strenuous in operation and inconvenient to use are solved. In the semi-automatic foldable table, an inner sleeve is inserted into a base in a threaded mode, a second gear is arranged at one end of the inner sleeve, a supporting disc is movably arranged on the inner sleeve, a bearing is arranged between the supporting disc and the inner sleeve, a motor is arranged on the supporting disc, a first gear engaged with the second gear is arranged on the motor, and an outer sleeve which is in threaded connection with the inner sleeve is arranged on the base. In this way, when the motor rotates, in a main table board, through the matching effect of the first gear and the second gear and the matching effect of the inner sleeve and the outer sleeve, and the distance between the main table board and the base is increased or decreased, so that the semi-automatic foldable table is conveniently used for crowds with different heights; as the motor is used in cooperation with the inner sleeve, the inner sleeve is used in cooperation with theouter sleeve, and a lead screw is used in cooperation with the inner sleeve, labor is better saved when persons operate the semi-automatic foldable table.

An apparatus for providing crash prevention control functionality to a vehicle includes: a dangerous situation determining unit determining whether a dangerous situation is developing with respect to a side approaching vehicle based on information relating to the vehicle approaching from a side direction; a lane keeping assist system (LKAS) control area calculation unit calculating a control area to apply to a LKAS so as to avoid the approaching vehicle when the approaching vehicle is causing a dangerous situation; a smart cruise control (SCC) control value calculation unit calculating a control value to apply to an SCC system so as to avoid the approaching vehicle when the approaching vehicle is causing a dangerous situation; and a drive control unit configured to output a control signal to at least one of the LKAS and the SCC system according to the calculation results.

The invention relates to an adjustment device for the level of a marine low-speed diesel engine frame. The device mainly comprises an upper inclined block, a lower inclined block and an adjusting stud, the upper inclined block and the lower inclined block respectively comprises an inclined surface and a horizontal surface, the included angle between the inclined surface and the horizontal surface of the upper inclined block is equal to the included angle between the inclined surface and the horizontal surface of the lower inclined block, one end of the thicker end of the upper inclined block is provided with a screw hole matched with the adjusting strut, the thinner end of the lower inclined block is provided with a protuberance perpendicular to the inclined surface, the whole lower inclined block is approximately of L shape, the protuberance is provided with a through unthreaded hole, the unthreaded hole is coaxial with the screw hole on the upper inclined block, the inclined surface of the upper inclined block is downward placed on the inclined surface of the lower inclined block, the thicker end of the upper inclined block is near the protuberance, one end of the adjusting strut passes through the unthreaded hole and is fixed in the screw hole of the upper inclined block, a nut screwed on an adjusting strut is respectively arranged close to both sides of the protuberance. The adjustment device of the invention solves the problem that the rigid plane has difficult horizontal adjustment, and has the advantages of high adjusting accuracy and strong reliability.

The invention relates to a wetting device, in particular to a plaster bandage wetting device and aims to provide a plaster bandage wetting device which is sufficient in wetting and simple in wetting operation without directly stretching a hand into water. The technical scheme includes that the plaster bandage wetting device comprises a bottom plate, a box, a water outlet pipe, a valve, a mountingplate, a first rotating shaft, a fan-shaped rotating disk, a guide sleeve, a guide rod, a pick, a fixing block, a first elastic piece and the like, the box is arranged at the top of the bottom plate,the water outlet pipe is arranged on the right lower portion of the box, the valve is arranged on the water outlet pipe, and the mounting plate is mounted on the left upper portion of the box. A plaster bandage is clamped by two screens, rotation of a crank and the action of elastic force of the second elastic piece are controlled, a cam can be driven to rotate, so that the distance between the screens is increased or decreased, the upper end of the guide rod is clamped into a clamp groove, a swing rod is limited, the screens are squeezed by an upper roller and a lower roller, and redundant water of the plaster bandage can be squeezed out.

The present invention relates to a spinning preparation machine, such as e.g. a carding machine or a cleaner or the like. Said machine comprises a device for the contactless measurement and / or adjustment of parameters in two opposite card clothings (21, 25). The tips (22, 26) of said card clothings are configured so as to be electrically conducting, a voltage source (41; 101; 201, 206) is connected to the tips of at least one of the card clothings, and electrical discharges can be produced by applying a variable potential difference between the tips of the two card clothings. These discharges are indicative of the actual distance (d) and / or the distance to be adjusted between the card clothing tips and / or the degree of wear of at least one of the card clothings and / or the position of the one card clothing in relation to the other card clothing, especially the angle of inclination (T) relative each other. The invention also relates to a corresponding contactless measuring method.

The invention discloses a device capable of heating a coal reservoir to improve a low-coal-rank coal bed gas yield. The device comprises a truck, a flowmeter, a first gas booster, a second gas booster, a mixed gas separating device, a methane storage tank, a water collecting box and a control system. A U well and multiple exploited wells are drilled in the coal reservoir on the ground, the U wellis composed of a first vertical well segment, a horizontal well segment and a second vertical well segment, a fuel battery air heat exchange system is mounted on the truck, a gas outlet of the fuel battery air heat exchange system is connected with a gas inlet of the first gas booster, a gas outlet of the first gas booster is connected with a well opening of the first vertical well segment, a wellopening of the second vertical well segment is connected with a gas inlet of the second gas booster, a gas outlet of the second gas booster is connected with a gas inlet of the mixed gas separating device, and the exploited wells are connected with an extraction device. Water in a low-coal-rank reservoir is effectively removed, desorption of methane molecules is promoted, and the low-coal-rank coal bed gas yield is improved.

The invention relates to tire flash grinding equipment and belongs to the technical field of machine tools or equipment capable of grinding the edges or the oblique planes of workpieces or removing burrs. The equipment comprises a rack, a first conveying device and a control table; the rack comprises a first horizontal arm and a second horizontal arm, and the first horizontal arm and the second horizontal arm are parallel to the ground; a hydraulic lifting shaft is installed on the first horizontal arm, grinding wheels are installed on the upper portion and lower portion of the hydraulic lifting shaft, and a second rotating disc with a pressing plate is installed on the second horizontal arm; and the first conveying device comprises a conveying belt, a supporting plate, a first rotating disc, a tapered clamp, the second rotating disc and a telescopic rod, and the conveying belt is an intermittent movement conveying belt. According to the technical scheme, the problem that in the prior art, tire flash cannot be continuously machined is solved; furthermore, through adjusting of the hydraulic lifting shaft, the distance between the grinding wheels installed on the upper portion and lower portion of the hydraulic lifting shaft can be increased or reduced, so that the equipment is applicable to flash grinding machining for tires with different specifications; and the tire flash grinding equipment is simple in design and high in practicability.

The invention discloses a correction mechanism on silicon wafer etching equipment, and relates to the technical field of silicon wafer production equipment. The correction mechanism comprises a base,a supporting seat, a conveying roller, a driving device, a conveying belt, a slide holder, a sliding seat, a correction mechanism and a guide wheel. The passive part of the correction mechanism is pushed by the trigger plate of the slide holder; a first gear with the diameter smaller than that of a rotating column is driven to rotate under transmission teeth on the rotating column (according to the transmission ratio principle in a mechanical transmission system, the rotating angle of the first gear equivalent to a small gear is larger than that of the rotating column equivalent to a large gear); the guide wheel is driven by the rotating part connected with the first gear to move in the arc direction from front to back along the arc end face of the silicon wafer, and front-back and left-right position correction of the silicon wafer is achieved. Besides, a second gear rotates along connecting teeth under the rotation of the rotating part, so that the guide wheel is driven to rotate. The static friction between the guide wheel and the silicon wafer is changed into dynamic friction, and the abrasion damage of the guide wheel to the silicon wafer is greatly reduced.

The invention discloses a roller carrier adjusting device of a flatcar. The roller carrier adjusting device of the flatcar comprises a flatcar frame (1), wherein a driven roller set (3) is arranged at the front portion of the flatcar frame (1), a driving roller set (2) is arranged at the rear portion of the flatcar frame (1), and two roller sets which are arranged in parallel in the length direction of the flatcar are arranged on the upper flat surface of the flatcar frame (1). The roller carrier adjusting device of the flatcar is characterized in that two roller sets (6) are arranged on a guide rail (4), one of the two roller sets (6) is fixedly arranged, the other one of the two roller sets (6) is movably arranged on the guide rail (4) through a sliding block (8), the outer side of the fixed roller set (6) is provided with a speed reducing motor (5), one end, arranged in parallel to the guide rail (4), of a lead screw (7) is connected with the speed reducing motor, and the other end of the lead screw (7) penetrates through the fixed roller set and is matched with a lead screw nut of the movable roller set. The roller carrier adjusting device of the flatcar has the advantages that the speed reducing motor drives the lead screw to enable the movable roller set and the fixed roller set to move in a face to face direction or an opposite direction, therefore, the distance between two roller sets is increased or decreased, the roller sets are matched with objects with different lengths, and stable placement of pipe class objects is achieved.

The invention provides seed cleaning equipment with a seed disturbance function for agricultural plantation. The seed cleaning equipment comprises a shell, a first screen is fixedly connected to the interior of the shell, two mounting bases are symmetrically and fixedly connected to the outer side wall of the shell, vertical columns are fixedly connected to the mounting bases, the top ends of thetwo vertical columns are jointly and fixedly connected with a supporting plate, and a driven shifting device is fixedly connected to the middle of the lower side of the supporting plate. The seed cleaning equipment has the following beneficial effects that firstly, a first rotating shaft drives a gear to rotate, a rack meshed with the gear moves towards the interior of a groove, then two rotatingrods are driven to rotate around first hinges towards the middle of the shell, and disturbance protrusions arranged on the lower sides of second mounting plates are driven to disturb seeds on the first screen; and then an output shaft of a first motor rotates reversely to drive the two rotating rods to move towards the two sides of the shell correspondingly, the seeds on the first screen are disturbed again, and the screening effect is effectively improved.

The invention belongs to the technical field, and provides a nut size screening device. The device comprises a rack, a rotating frame, a transmission mechanism and screening frames, the rotating frameis rotationally arranged on the rack, and an included angle is formed between the axial direction of the rotating frame and the horizontal direction; the transmission mechanism is used for driving the rotating frame to rotate; and each screening frame comprises a first screen ring arranged on the rotating frame, a second screen ring arranged on the rotating frame in a sliding mode in the direction of a rotating shaft of the rotating frame, extension springs with two ends fixedly connected with the first screen ring and the second screen ring correspondingly, and third screen rings fixedly connected with the middle of the extension spring. The multiple third screen rings are arranged, the connecting points of the multiple third screen rings and the extension spring are arranged at equal intervals, and the multiple third screen rings are arranged on the rotating frame in the direction of the rotating shaft of the rotating frame in a sliding mode. The nut screening device further comprises adjusting mechanisms used for adjusting the distance between the first screen rings and the second screen rings, and through the technical scheme, the technical problem that in the prior art, a nutscreening device capable of adjusting the screening size does not exist is solved.

The invention discloses a spray gun capable of adjusting a mist-spray surface. The spray gun comprises a gun body, a gun head outer nozzle, a gun head inner nozzle, a gas needle adjustment device and an oil pot, wherein the gun head outer nozzle comprises an outer nozzle outer spray head, an outer nozzle inner ring, an outer nozzle connection ring and a mist-spray rotary adjustment ring, two gas paths are formed in the outer nozzle outer spray head, a tangential spray port is formed in the tail end of each gas path, the outer nozzle inner ring is of a hollow structure, an inclined stop wall and a positive spray port are installed at the front end of the outer nozzle inner ring, and two communication holes are formed in the tail part of the outer nozzle inner ring; the gas paths on the gun head outer nozzle are connected with the outer nozzle inner ring through the communication holes; the gun head inner nozzle is of a hollow conical structure, an oil path is arranged in the gun head inner nozzle, and an oil outlet port is formed in the front end of the gun head inner nozzle; and the gun body comprises a gun body gas path and a gun body oil path, the gun body gas path is communicated to the outer nozzle inner ring, and the gun body oil path is communicated with the oil path of the gun head inner nozzle. The spray gun disclosed by the invention has the advantages of being wide in application range, convenient to operate, low in cost and high in efficiency.

The invention discloses a mechatronics system capable of solving the seasickness problem completely. The mechatronics system capable of solving the seasickness problem completely comprises a stabilized platform, a movement tendency sensor arranged on the stabilized platform, at least two adjustment mechanisms used for adjusting the state of the stabilized platform, a suspension structure used for enabling the stabilized platform to be connected with the adjustment mechanisms, and a controller connected with the movement tendency sensor and the adjustment mechanisms and used for controlling the adjustment structures to act according to the state of the stabilized platform. Each adjustment structure comprises a pulling rope, a pulley device, a balance weight device and a servo motor, wherein the pulling rope, the pulley device, the balance weight device and the servo motor are connected in sequence. The movement tendency sensor is used for sensing a state signal of the stabilized platform and transmitting the signal to the controller. The controller controls the adjustment mechanisms to act, and finally the stabilized platform is controlled to be in a stable state. The mechatronics system has the characteristics of being high in stabilization precision and rapid in response, and the seasickness problem can be effectively solved.

The invention relates to the technical field of cranes, in particular to a counterweight shifting device and a crane. The counterweight shifting device comprises a counterweight frame, connecting assemblies, transmission assemblies and driving parts; the counterweight frame is used for being connected with a rotating table, and the connecting assemblies are used for being connected with counterweights; the connecting assemblies are rotatably connected with the counterweight frame, the driving parts are fixed to the counterweight frame, and are connected with the connecting assemblies through the transmission assemblies to drive the connecting assemblies to rotate, so as to adjust the set reference distance between the connecting assemblies and the counterweight frame. According to the counterweight shifting device, the position of the counterweights relative to the rotating table can be changed under the condition that the counterweight amount is unchanged, that is, the position of a counterweight working point, thus the gravity center of the crane is changed, then the counterweight performance of the crane is enhanced, and whole moving of the crane is avoided, so that the stability performance of the crane is improved.

A fibrous plant stalk decorticator is disclosed. The decorticator includes a feeding device a breaker roll having a first plurality of blades, and a skutcher roll having a second plurality of blades. The skutcher is positioned such that the first and second pluralities of blades overlap. A plurality of air outlets pass through the blades and are configured to provided pressurized air to the fibrous plant stalk as it is passed through the decorticator.

The invention relates to an easy-to-clamp surface spraying device for a high-speed wire rod guide wheel. The device includes an operation platform, a sliding groove, a connecting frame, a regulating tube, a clamping slider and a cleaning groove. One side of the operating platform is fixed with a paint guide rail which is perpendicular to the clamping guide rail. The sliding groove is arranged on the side, away from the paint guide rail, of the operation platform, the side, away from the operation platform, of the sliding groove is provided with the slider, the connecting frame is fixed on theside face of the operation platform, the inner side of the paint guide rail is provided with a through hole, and the side, away from the paint guide rail, of the through hole is provided with a fastening handle. According to the easy-to-hold surface spraying device for the high-speed wire rod guide wheel, springs and protective pads form a combined clamp mechanism, the high-speed wire rod guide wheel directly presses the springs through the protective pads, since the protective pads are soft, the high-speed wire rod guide wheel can not be damaged by the protective pads, the opposite acting force of the springs directly acts on the surfaces of the two ends of the high-speed wire rod guide wheel so that the high-speed wire rod guide wheel can be clamped tightly and fastened. The device facilitates clamping of the high-speed wire rod guide wheel.

The invention discloses an adjusting roller carrier of a flatcar. The adjusting roller carrier of the flatcar comprises a flatcar frame (1), wherein a driven roller set (3) is arranged at the front portion of the flatcar frame and a driving roller set (2) is arranged at the rear portion of the flatcar frame. The adjusting roller carrier of the flatcar is characterized in that roller carrier bodies (7) are arranged on guide rails (9), the roller carrier bodies on the guide rails are driven to mutually move through lead screws (4) and speed reducing motors (8), and therefore the distance between the roller carriers (7) is adjusted. The adjusting roller carrier of the flatcar has the advantages that the lead screws are driven through the speed reducing motors to enable two lead screw nuts to move in a face to face direction or an opposite direction, therefore, the distance between each set of roller carriers is increased or decreased, different combination positions exist between the rollers and objects with different diameters, the center of gravity of an object is reduced through adjustment of the distance between the roller carriers, and stable placement of pipe class objects is achieved.

An abseiling device for braking a load (16) which is guided on a rope (14) and can be fastened to the abseiling device (10), in which the rope (14) runs through the abseiling device (10) with frictional guidance over a distance (22), wherein at least one portion of the distance (22) is guided via a part (25) of the abseiling device (10), which part can be moved out of a load-free initial position relative to a housing (12) of the abseiling device and, when a load is suspended, generates a frictional force, which is dependent on the weight of the load (16), on the rope (14).

The invention discloses a cable traction device for power construction. The cable traction device for power construction comprises a bottom plate, universal wheels and a handrail frame, wherein the universal wheels are installed at four corners below the bottom plate, the handrail frame is installed on one side of the bottom plate, a conveying device is installed above the bottom plate, and the conveying device comprises a box body, a longitudinal traction mechanism and a transverse traction mechanism; the longitudinal traction mechanism and the transverse traction mechanism are the same in structure and are installed in the box body in a staggered mode; through holes are formed in the two sides of the box body; and fixing mechanisms are installed on the two sides of the bottom plate. When a cable passes through the conveying device in the traction process, the periphery of the cable is extruded through the longitudinal traction mechanism and the transverse traction mechanism in the conveying device, so that the collimation effect is achieved, the practicability of the device is improved, the device is fixed through the fixing mechanisms on the two sides of the bottom plate, and the working stability is guaranteed.

The invention relates to a polishing machine, in particular to a workpiece safety intelligent polishing machine. The invention aims to provide the workpiece safety intelligent polishing machine which is high in polishing efficiency and safety and not prone to cause resource waste. The workpiece safety intelligent polishing machine comprises mounting frames, expansion screws, a mounting box, an operation box, an observation glass, a fixing frame, a first connecting block, a control box, a power supply main switch, a second switch and the like, wherein the mounting frames are both arranged on the upper portion and the lower portion of the right side face of the mounting box correspondingly, mounting holes are both formed in the mounting frames, the expansion screws are both arranged in the mounting holes in a penetrating mode, and the expansion screws are fixed on a wall. According to the polishing machine, the dustproof cloth can block a corss-shaped hole to form a closed environment, so that scrap iron generated during polishing is prevented from being splashed out through the corss-shaped hole, and then the safety of the device is improved, and a worker can press a first rocker switch to different gears, so that the distance between an upper clamping block and a lower clamping block is increased or decreased, and then workpieces with different thickness degrees can be clamped.

The invention relates to a roll forming machine for forging cutter blanks. The roll forming machine comprises a rack, a first roller, a second roller and a gap adjusting mechanism. Both the first roller and the second roller are arranged in the rack. The first roller is located above the second roller. Both the first roller and the second roller are sleeved with copper tiles. Both the first rollerand the second roller are rotationally connected with the two side walls of the rack through the copper tiles. The two ends of the lower portion of the gap adjusting mechanism rotationally extend into the rack and are correspondingly and detachably connected with the copper tiles. A circular arc groove is formed in the outer profile of the second roller. One end of the circular arc groove is in circular arc transition with one end face of the outer profile of the second roller, and the other end of the circular arc groove is in stepped face connection with the other end face of the outer profile of the second roller. Compared with the prior art, according to the roll forming machine, each cutter blank in the circular arc groove is rolled into a semi-finished cutter with one thick side andone thin side by the first roller and the second roller, each semi-finished cutter is in a thick-cutter-back and thin-cutter-point shape, meanwhile the thicknesses of the semi-finished cutters are consistent, the surfaces are level, bright and clean, and the cutter points are straight.

The invention discloses can-making drying equipment with limiting gap adjustable, and belongs to the technical field of can-making drying equipment. The can-making drying equipment aims to solve the technical problem that in the prior art, drying processing on cans with different diameters cannot be met. A conveying belt is arranged at the upper end of a rack, the two ends of the conveying belt are in transmission connection with a driving wheel and a driven wheel respectively, and the equipment is characterized in that each of the left end and the right end of the conveying belt is provided with a guide assembly; and each guide assembly comprises a transmission shaft and a guide wheel, the upper end of each transmission shaft is in transmission connection with one guide wheel, a guide plate is arranged between the guide wheels, the two ends of the guide plate are inwards recessed to form guide grooves, one end of each transmission shaft is connected to a limiting assembly, and each limiting assembly comprises a screw rod and a guide sleeve. The screw rods are rotated by manually rotating a hand wheel, so that the guide sleeves drive the transmission shafts to move left and right on the screw rods, then the gap between the two transmission shafts is expanded or reduced, the distance between arc-shaped grooves of the guide wheels and the guide plate is increased, and therefore the cans with different sizes can be limited and guided.

The invention discloses an automobile washing device for small and medium-sized automobile washing shops, and belongs to the technical field of automobile washing. According to the technical scheme, the automobile washing device for the small and medium-sized automobile washing shops comprises an automobile washing room and a supporting frame arranged in the automobile washing room. A movable water spray pipe is arranged on the supporting frame, and an automobile washing table is arranged below the supporting frame. Hubs and boxes are arranged on the two sides of the automobile washing table,and a square hole is formed in the middle of the automobile washing table and internally provided with a movable lifting spraying head. The automobile washing device has the beneficial effects that the automobile washing device is convenient to use and low in cost, automatic automobile washing can be achieved, the cost performance is high, and the automobile washing device is convenient to use andpopularize on a large scale; the problem that no equipment for washing tires or the hubs of an automobile on the market exists is solved, the tires and the hubs can be separately washed through arranged wheel brushes, and thus the washing effect is improved; a chassis of the automobile can be washed automatically, and the washing efficiency and the washing effect are good; and meanwhile, the height of the spraying head can be adjusted, and the automobile washing device can be suitable for the automobiles with the chassis of different heights.

The invention discloses a testing device with static and dynamic test functions of a bridge segment model. The testing device comprises a bridge segment model static test device and a bridge segment model dynamic test device. According to the invention, the testing device with the static and dynamic test functions can be used for dynamic testing through simple transformation on the basis of an original static testing device. Compared with a traditional segment model wind tunnel test device which is usually divided into two sets of devices for static test and dynamic test, the testing device provided by the invention can greatly save the test cost and improve the test efficiency.

The invention relates to the field of engineering, in particular to intelligent automatic food cutting equipment. According to the intelligent automatic food cutting equipment, the size of cut vegetables is changed by changing the distance between two groups of blades, the up-down movement amplitude of two groups of chopping knives can be changed, and then the vegetable cutting effect is further changed. The intelligent automatic food cutting equipment comprises a coarse cutting device, a chopping device, a screening and washing device, a belt and a third rotating connecting rod. Round teeth are driven to move upwards or downwards, then an outer shaft is driven to move upwards or downwards, the two first blades are driven to move upwards or downwards, and the distance between the first blades and the second blades is increased or reduced, so that the size of the cut vegetables is changed; and outer connecting rods are rotated to drive a functional square block to rotate, four bent rods are driven to move, four small discs are driven to move outwards or inwards, so that the up-and-down movement amplitude of two groups of long rods is changed, the up-and-down movement amplitude of the two chopping knives is changed, and the vegetable cutting effect is changed.

The invention discloses a steel pipe column positioning device, and relates to the technical field of building construction device.The steel pipe column positioning device comprises a base, a full-slewing drilling machine and a drilling rod, the full-slewing drilling machine and the drilling rod are arranged on the base, a through hole allowing the drilling rod to penetrate is formed in the base, supporting legs are arranged at the four corners of the base, a connecting plate is slidably arranged on the supporting legs, and a supporting air cylinder is arranged on the connecting plate; a piston rod of the supporting air cylinder penetrates through the connecting plate to be connected with the supporting leg, a transmission gear is arranged on one side of the connecting plate, a static tooth-shaped rod meshed with the transmission gear is arranged on the supporting leg, and a movable tooth-shaped rod meshed with the transmission gear is arranged on the base. The distance between the connecting plate and the supporting legs and the distance between the connecting plate and the base are increased or decreased through the supporting air cylinders at the same time, so that upward stable lifting of the full-slewing drilling machine and the drilling rod is achieved, collision of the drilling rod to a steel pipe column is effectively reduced, and then the perpendicularity of the steel pipe column is ensured.