39results about How to "Troubleshooting mobility" patented technology

The invention provides a gas-gas combustor support device for test, which comprises a cement barrier platform, a connecting frame, an engine head part, an engine body part and an engine support system, wherein a front support part and a rear support part of the engine support system can be moved in guide rails through rolling bearings, the engine connecting frame is fixed on the cement barrier platform, the engine head part is arranged on the connecting frame, the engine body part is arranged on the front support part and the rear support part of the engine support system, and the engine headpart is connected with the engine body part through bolts. In the device provided by the invention, the engine body part can be disassembled through moving the rolling bearings of the support device,and then a multinozzle gas-gas injector assembly in the engine head part is convenient to replace. The invention solves the problem of difficulty in moving a heavy engine, and enables the multinozzlegas-gas injector assembly to be replaced conveniently.

A vase that is convenient for changing water mainly includes a device main body, a convenient moving mechanism and an automatic water changing mechanism, and is provided with a left fixing ring, a first handle, a first connecting buckle, a second handle, a right fixing ring and a second connecting buckle, It is convenient for the user to move the vase, prevents the original vase from being easily broken when moving, and solves the problem of difficulty in moving the original vase; it is equipped with a left water storage tank, a water pump, a hose, a nozzle, an outlet pipe, a regulating valve and a right water storage tank. The vase is convenient for automatic water change, and the problem of difficult water change in the original vase is solved.

The invention discloses an intelligent mechanical arm convenient to move. The intelligent mechanical arm convenient to move comprises a base, a stand column, shaft joints, a control device and a remote controller; a storage box is arranged on one side of the stand column; the shaft joints are rotationally connected pairwise; an extension control mechanism is arranged in the connecting place of two shaft joints; the remote controller and the control device are in wireless communicating connection; a driving control module, an actuation control module, an extension control module, a warning control module, a remote controller control module and a central control module are arranged in the control device; the remote controller control module is connected with the remote controller; and the driving control module, the actuation control module, the extension control module, the warning control module and the remote controller control module are all connected with the central control module. The intelligent mechanical arm convenient to move realizes one-key control through the remote controller, in particular, controls extension of the shaft joints through the remote controller, and is provided with the extension control mechanism between two shaft joints for realizing a shrinkage function of the shaft joints to conveniently carry and move the mechanical arm.

The invention discloses a semi-trailer with a self-running function and a self-running wheel set. The self-running wheel set comprises a supporting frame, an extending and retracting oil cylinder, a steering mechanism, an upright, a bolt and a running wheel set; the supporting frame is used for connecting an external frame with the running wheel set; the top end of the supporting frame is hinged to the external frame; the bottom end of the supporting frame is fixedly connected to the upright through the steering mechanism; the running wheel set is mounted at the lower end of the upright; through extending and retracting of the extending and retracting oil cylinder, the supporting frame is driven to rotate around a hinging point of the supporting frame and the external frame so as to realize the extending and retracting of the running wheel set; two locking mechanisms are arranged on the supporting frame and correspondingly used for locking the supporting frame after the supporting frame extends and retracts in place; after the supporting frame extends in place, the running wheel set is in contact with the ground and runs under the driving of a power mechanism of the running wheel set; and when the running wheel set needs to steer, the steering mechanism is driven to rotate to drive the upright to rotate around the axis of the upright so as to realize the steering of the runningwheel set. The self-running wheel set can drive the semi-trailer to self-run and self-steer after the semi-trailer is separated from a tractor.

The invention relates to the field of belt conveyors, and discloses a belt conveyor with a variable discharge port, which is characterized in that a controller is started, a humidity detector detects the humidity of grains, a detection signal is transmitted into the controller through a data line after detection, the detected humidity is compared with a numerical value set by the controller, an air supply motor and a heating frame are started according to the humidity comparison result, so that the air supply motor enables a fan to rotate to different speeds according to the control of the controller, meanwhile, a heating wire is controlled to heat to different temperatures, the fan rotates to generate a certain amount of air, and the air is blown into the heating frame, heated through the heating wire and then blown into an anti-skid groove, so that the grains can be dried, and meanwhile, the air speed and the heating temperature are controlled through the controller according to the humidity comparison value, and therefore the purpose of saving energy is achieved.

The invention discloses a plate cutting device for machining. The plate cutting device for machining comprises a case, a plate conveying tank and a mounting plate. The plate cutting device for machining is reasonable in structural design and quite high in practicability; in the operating process, a first motor provides power to drive plates to move through a first rotating shaft, and convenience and quickness are achieved; a push plate can push the plates to move in the cutting process, so that the problem that resistance in the cutting process is high and consequently the plates are difficultto move is solved; the problem that the plates are unstable when cut and consequently cutting is inaccurate or a cutting blade fractures is solved by means of a rebound prevention module; a second motor drives a cutting blade to rotate through a belt pulley, a hydraulic rod drives the mounting plate and the cutting blade to move downward to cut the plate, and the cutting speed and efficiency arehigh; under action of a metal particle collection box and a magnet, metal particles can be effectively attracted, and physical health of workers is effectively ensured; meanwhile, environment friendliness and saving are achieved; and the sealed case design is adopted for the cutting device, so that sound is insulated effectively and noise pollution is reduced.

The invention discloses a series-connection hydraulic support for tunnel floor dinting, and relates to comprehensive mining, supporting and protecting equipment for coal mine, which is used for the supporting of a nose of a tunnel floor dinting transport plane, the maintenance of a top plate at a supporting position, and the adjustment of the operating attitude of the top plate. The series-connection hydraulic support comprises a supporting frame and an anchor frame connected in series to the bottom of the supporting frame through a push-pull jack, wherein the supporting frame is integrally connected with the nose of the transport plane through a pin shaft; the inclination angle of the transport plane can be well adapted by a rotatable top beam of the supporting frame; hydraulic pressure stand columns of the supporting frame can drive the top beam to rise and fall up and down, so that the change of a height difference between the transport plane and a tunnel bottom plate can be adapted; the supporting and the protecting of a working surface top plate at the nose can be well completed by the anchor frame; a raising mechanism and a bottom adjusting mechanism which are mounted on each of two sides of a stabilizing mechanism of the anchor frame, can adjust the operating attitude of the anchor frame and the operating attitude of the adjacent support, and can improve the equipment stability of the nose; the effect of the top supporting is improved by the rotatable top beam of the anchor frame; the supporting frame as the fulcrum of the anchor frame, and the anchor frame as the fulcrum of the supporting frame move forward, so that the difficult problem of moving the nose of a hang-in-air transport plane is solved settled.

The invention belongs to the technical field of medical information query, and particularly relates to a medical information query device which comprises a query machine body, a touch screen, a keyboard, a side baffle and transparent film paper. The side baffle is installed on the right side of the query machine body through screws. Storage grooves are formed in the positions, below the touch screen and on the front side of the keyboard, of the query machine body. Sealing plates are movably hinged to end openings of the storage grooves through torsional springs. Transparent film paper attachedto the touch screen and the keyboard in a covering mode is wound through a first film winding rod and a second film winding rod, then the transparent film paper touched by a previous patient is woundaround the first film winding rod and the second film winding rod, disinfectant fluid is sprayed through a spraying device for disinfection, and then the transparent film paper becomes dry through the wiping device. The transparent film paper can be repeatedly used after being disinfected, then the effects of saving resources and avoiding environmental pollution are achieved, the cleaning gauze in the wiping device can be detached to be repeatedly used, and then the resources can be saved.

The embodiment of the invention relates to the technical field of civil construction, in particular to intelligent grouting equipment and a pile foundation construction method. The intelligent grouting equipment comprises a movable trolley, a slurry making machine, a grouting machine and a control device; the movable trolley comprises a trolley body; the slurry making machine is detachably installed on the movable trolley and is used for preparing cement slurry; the grouting machine is detachably installed on the movable trolley, a grout inlet of the grouting machine is in communication with adischarge port of the slurry making machine, and the grouting machine is used for conveying the cement slurry prepared by the slurry making machine; and the control device is used for controlling theslurry making machine and the grouting machine to work. The intelligent grouting equipment can solve the problems that existing grouting equipment is disorderly and dispersedly placed and stored andneeds to be manually controlled, the grouting quality cannot be guaranteed due to the influence of human factors and the environment, and the grouting machine is difficult to move when the pile foundation distance is large.

The invention discloses a fully automatic table tennis table device, comprising a first supporting frame, a rotating shaft is arranged inside the first supporting frame, a sliding block is connected to the rotating shaft, a connecting rod is connected to the sliding block, the connecting rod is hinged to the chassis, and the casing is installed A motor; the motor drives a plurality of gears; the gears are configured with a transmission mechanism; the upper part of the table support is provided with a table tennis table, the rotating link is connected with a transmission shaft, and the transmission shaft is connected with an online shaft and the like. The invention can be used in indoor offices and gymnasiums, and players can adjust the height of the table tennis table according to their own height; when the device is not used, it can be automatically erected to solve the shortcoming that the indoor table tennis table occupies too large an area; the ball net can move up and down And it can be automatically stored in the net cabinet; the device can move freely, which solves the disadvantage of difficulty in moving the table tennis table.

The invention discloses a patient storage and infusion rack for an emergency department. The patient storage and infusion rack comprises a bottom plate, a supporting cylinder, a telescopic rod, a movable bottom plate and an infusion tube heater. An installation clamping groove is formed in the middle of the lower end of the bottom plate. Storage holes are symmetrically formed in the two sides of the upper side of the installation clamping groove of the bottom plate. A movable temporary chair is arranged in the storage holes. A movable bottom plate is slidingly connected into the installation clamping groove in the lower side of the bottom plate. Pressing wheels are movably connected with the upper ends of the two sides of the installation clamping groove of the lower end of the bottom plate. The infusion tube heater is welded to the upper side of the front face of the supporting cylinder. A fixed sponge is arranged on the front side of the infusion tube heater. A battery is arranged inthe infusion tube heater. A heating bulb is arranged at the position, located on the surface of the infusion tube heater, of the lower side of the fixed sponge. The movable bottom plate can be pulledout and stretched out for use by a patient in the emergency department; by adding the heating bulb, a liquid medicine in an infusion tube is heated, the temperature cannot be too high, and comfort can be provided for the patient.

The invention discloses a planer for woodworking production. The planer includes a planer body, a working table and universal wheels. The working table is fixedly connected to the top of the planer body, the universal wheels are movably connected to the four corners of the bottom of a base, a conveying table is movably connected to the top of the working table, and a power chamber is fixedly connected to the bottom of the planer body. An absorption heat device is electrically connected to the right side of a motor to increase the heat dissipation speed, and the service life of the planer bodyis prolonged. Folding buckles enable the universal wheels and moving supporting legs to carry out switching use, so that the problem of difficult moving of the planer body is solved, and the stabilityof the planer body is enhanced. A waste storage box collects waste to prevent the waste from falling to the ground so as to cause chaotic working environment, and a user can handle the waste at the later stage conveniently. A stretch shrapnel adjusts the widths of planing blades and shrinks the planing blades so that the plane planing blade and the corrugated planing blade can be switched to use,and the practicability of the planer body is improved.

The invention relates to the technical field of waste-gas treatment systems, and in particular relates to an activated carbon adsorption system and an activated carbon adsorption-desorption system. The invention aims to solve the problem that mobile connection is difficult when a movable activated carbon adsorption system is connected with a waste-gas pipeline in the prior art, and in order to realize the purpose, the invention provides the activated carbon adsorption system. The activated carbon adsorption system includes an activated carbon adsorption tower; and a movable mechanism is arranged at the bottom of the activated carbon adsorption tower, and the activated carbon adsorption tower can be moved to a position close to the waste-gas pipeline through the movable mechanism, so that awaste-gas inlet of the activated carbon adsorption tower can communicate with a waste-gas outlet of the waste-gas pipeline. According to the activated carbon adsorption system provided by the invention, the movable mechanism is arranged at the bottom of the activated carbon adsorption tower, so that the activated carbon adsorption tower can be accurately moved to the position near the waste-gas pipeline to communicate with the waste-gas pipeline, and the movable activated carbon adsorption system can be applied to enterprise pollution sources with a plurality of production lines, scattered pollution sources, intermittent production processes and scattered emission points.

The invention relates to a steel shell slide system and a construction method. The system comprises a two-end suspension pouring beam, an embedded steel shell, a closed steel shell, a first sliding device, a second sliding device and a third sliding device, wherein the embedded steel shell is arranged on the lower portion of the two-end suspension pouring beam; the closed steel shell is arranged on the inner side of a notch of the embedded steel shell; the first sliding device is arranged on a flange plate of the two-end suspension pouring beam; the second sliding device is arranged on a web plate of the two-end suspension pouring beam; the third sliding device is arranged on a bottom plate of the two-end suspension pouring beam; the first sliding device, the second sliding device and thethird sliding device are connected with the closed steel shell; the closed steel shell moves to a notch portion of the embedded steel shell along the first sliding device, the second sliding device and the third sliding device; and the shape of the closed steel shell is matched with that of the embedded steel shell. The problems that in order to reduce influences to running of existing railways and roads in rotation construction, closure is carried out by a middle steel-shell method, and a notch of the steel shell is closed and cannot slide automatically can be solved, the notch of the steel shell is closed simply and conveniently, influences to the road below a bridge are minimized, safety is ensured, and the corresponding economic cost is reduced.

The invention belongs to the technical field of nuclear power plant mechanical fabrication, and particularly relates to a test bed detecting reliability of a stud tensioner and a detection method thereof. The test bed includes a plurality of loop I top cap stud assemblies, a plurality of loop II top cap stud assemblies, a bed plate, a plurality of support rods, a plurality of lifting lugs, and a plurality of roller assemblies and support foot assemblies. The support rods are fixedly connected the lower surface of the bed plate, a plurality of threaded through holes are evenly formed in the upper surface of the bed plate, each support rod is provided with a roller assembly and a support foot assembly, the roller assemblies are fixedly connected with the support foot assemblies, the loop I top cap stud assemblies and the loop II top cap stud assemblies are fixed to the bed plate in a large and small ring-shaped arrangement mode with the center of the circle of the bed plate acting as anaxis.

The invention relates to an electromagnetic ultrasonic probe which is characterized by comprising a preposition amplifying module, an isolating layer, a shell, a receiving coil and a permanent magnetic device; the top face of the shell is provided with a poking switch, a power line interface and a BNC connector, the inner side of the bottom face of the shell is provided with the isolating layer, the centers of the two side faces of the shell are provided with holes respectively, the preposition amplifying module is located in the shell and fixed to the inner side of the top face of the shell through a screw, and the receiving coil is pasted to the isolation layer; the receiving coil is connected with the input end of the preposition amplifying module through a signal line, the output end of the preposition amplifying module is connected with the BNC connector fixed to the shell, the poking switch controls the gear position of the preposition amplifying module, and the power line connector is connected with an external power source; the permanent magnetic device comprises a permanent magnetic body, a first curved magnetic boot, a second curved magnetic boot, a cross coupling and a mechanical knob, a permanent magnetic device is located between the two curved magnetic boots, and the middle of the permanent magnetic body is provided with a cross hole groove.

The invention discloses a feedstuff machine for mixing raw materials conveniently and preventing deviation. The feedstuff machine comprises a base, the lower portion of the base is connected with mobile wheels through mobile wheel fixing frames, a damping rotating shaft, a motor fixing rack and a foundation support are sequentially arranged on the upper portion of the base from left to right, a handle is installed on the upper portion of the damping rotating shaft, a motor is installed on the upper portion of the motor fixing rack, a flywheel is installed on one side of the foundation support,a body is connected to the upper portion of the foundation support through bolts, a discharging plate is arranged on one side of the body, and a body end cover is installed on the upper portion of the body. A stirring motor, a mixing barrel and a stirrer are arranged, when feedstuff is prepared, the materials can be directly mixed and stirred, the trouble is avoided that a raw material mixing device needs to be additionally arranged, preparation costs are lowered, and the efficiency of preparing the feedstuff is improved; the damping rotating shaft and the handle, in this way, the feedstuff machine can be convenient to push for a user in case of need, and labor is saved.

The invention discloses an intelligent mechanical arm convenient to move. The intelligent mechanical arm convenient to move comprises a base, a stand column, shaft joints, a control device and a remote controller; a storage box is arranged on one side of the stand column; the shaft joints are rotationally connected pairwise; an extension control mechanism is arranged in the connecting place of two shaft joints; the remote controller and the control device are in wireless communicating connection; a driving control module, an actuation control module, an extension control module, a warning control module, a remote controller control module and a central control module are arranged in the control device; the remote controller control module is connected with the remote controller; and the driving control module, the actuation control module, the extension control module, the warning control module and the remote controller control module are all connected with the central control module. The intelligent mechanical arm convenient to move realizes one-key control through the remote controller, in particular, controls extension of the shaft joints through the remote controller, and is provided with the extension control mechanism between two shaft joints for realizing a shrinkage function of the shaft joints to conveniently carry and move the mechanical arm.

The invention relates to an integrated assembling device for a direct-current extra-high-voltage ceramic internal insulation supporting piece and a connecting part, and belongs to the technical field of porcelain insulators. According to the integrated assembling device for the direct-current extra-high-voltage ceramic internal insulation supporting piece and the connecting part, two supporting stand columns are symmetrically arranged on a base, round holes are formed in the supporting stand columns correspondingly, and rolling bearings are symmetrically embedded in the round holes; the rolling bearings are connected with a fixed frame through rotating shafts; a rotary positioning column is arranged in one side of the fixed frame in a penetrating manner, a pressing plate is arranged at the top of the rotary positioning column, and the pressing plate moves around the rotary positioning column in the horizontal direction and the vertical direction; the cross section of the fixed frame is U-shaped, and pressing blocks are separately arranged at the top of the fixed frame; a supporting plate is arranged in the middle of the fixed frame; a lower supporting plate is arranged at the bottom of the fixed frame; and positioning locking pins are arranged on the supporting stand columns close to one side of the rotary positioning column in a penetrating mode. The integrated assembling device for the direct-current extra-high-voltage ceramic internal insulation supporting piece and the connecting part is simple and easy to operate, the production efficiency of assembly operation is improved, the labor cost and the labor intensity are reduced, and the quality reliability and stability of the assembled product assembly are guaranteed.

The invention provides a top insertion powered glass all-electric-smelting kiln. The kiln comprises a telescopic rod, a positioning rod, a fastening bolt, a fixing head, a fixing cavity, a fixing rod,an ejector column, moving wheels and travel bolts, the telescopic rod is arranged in a guide sleeve, and the lower end of the positioning rod is arranged on a fixing mechanism; the fastening bolt isassembled in a screw cavity. Due to the design, a heating electrode can be hung in the kiln, the position of the heating electrode can be adjusted according to actual conditions, and then the aims ofimproving the heating effect of the heating electrode and prolonging the service life of the kiln are achieved; the fixing head is arranged in the fixing cavity, the fixing cavity is formed in the left end of the telescopic rod, the fixing rod is arranged in the right end of the fixing cavity, and the design achieves the effect of detaching and replacing a water jacket easily and rapidly; the ejector column is fixed at the lower part of the front end face of the kiln, the movable wheels are arranged at the lower ends of supporting rods, and the travel bolts are assembled in threaded holes, sothat the effect of easily and conveniently moving the kiln is achieved.

The invention discloses a comb-shaped bar production process. The comb-shaped bar production process comprises the following steps: (1) numerical punching: a copper piece with a certain width is numerically punched to two copper bars with the same sizes; (2) bending: the copper bars are bent; (3) polishing: burrs on the surfaces of the copper bars are removed; (4) tin plating: tin is plated on thesurfaces of the copper bars; and (5) assembly: insulation sleeves are cut; the copper bars are accurately clamped into the insulation sleeves; the copper bars are red copper; and the insulation sleeves are PVC resins. The designed comb-shaped bar production process can guarantee the quality and the precision of comb-shaped bars.

The invention belongs to the technical field of non-destructive testing of large-scale forgings of nuclear reactor pressure vessels, evaporators, and voltage stabilizers of nuclear power plants, and in particular relates to an ultrasonic automatic inspection device for large-scale cylinder and head forgings. The device includes door guide rail, horizontal telescopic rod, vertical telescopic rod, turntable, test block storage rack, gong-shaped forging, swing linear module, installation base; door guide rail is installed on the installation base, and the installation base There is a sinking circular groove in the middle, and the turntable is placed in it. The horizontal telescopic rod is installed in the vertical direction of the door guide rail and can slide along it. The vertical telescopic rod is installed in the horizontal direction of the door guide rail and can slide along it. The swing linear mold The groups are respectively installed on the head of the horizontal telescopic rod and the vertical telescopic rod, the gong-shaped forging of the measured object is installed on the turntable, and the test block storage rack is installed on the front end within the travel range of the door guide rail. The invention guarantees the consistency of parts in the processing stage and subsequent operation and service inspection data, and guarantees product quality.

The invention discloses a comb-shaped bar production process. The comb-shaped bar production process comprises the following steps: (1) numerical punching: a copper piece with a certain width is numerically punched to two copper bars with the same sizes; (2) bending: the copper bars are bent; (3) polishing: burrs on the surfaces of the copper bars are removed; (4) tin plating: tin is plated on thesurfaces of the copper bars; and (5) assembly: insulation sleeves are cut; the copper bars are accurately clamped into the insulation sleeves; the copper bars are red copper; and the insulation sleeves are PVC resins. The designed comb-shaped bar production process can guarantee the quality and the precision of comb-shaped bars.

The invention discloses full-automatic cable support forming equipment and belongs to the technical field of forming equipment. The full-automatic cable support forming equipment comprises a base and a clamping sleeve, wherein a supporting frame is fixedly connected with the left side of the upper end of the base; an air cylinder is fixedly connected with the upper end of the supporting frame; a cutting knife is fixedly connected with the lower end of the clamping sleeve; rotating rods are rotationally connected with the left and right sides of the lower end of the supporting frame through threads correspondingly; a rotating shaft is rotationally connected with one end of each rotating rod; and a left baffle plate and a right baffle plate are rotationally connected with the rotating shafts correspondingly. Through the connection among the supporting frame, the rotating rods and the rotating shafts, the left baffle plate and the right baffle plate can be conveniently limited and fixed, and then different-width materials can be conveniently limited and fixed; the phenomenon that the edge cutting position inclines due to the sliding of a material plate in the cutting process can be avoided; and meanwhile, through the arrangement of a front pressing plate, a rear pressing plate, positioning rods, a front buffering plate, a rear buffering plate, springs, T-shaped shafts, limiting rods and transverse rods, the front and rear parts of the plate can be limited, the plate can be prevented from being separated from the surface of the upper end of the base in the cutting process, and the cutting work can be facilitated.

The invention discloses a washing machine, which comprises a bottom platform. The bottom platform is provided with a roller and a support body. The rolling outer peripheral surface of the roller wheel is provided with gear teeth. The support body is provided with tooth grooves. The washing machine applies a force in a first direction, the rollers rotate and drive the washing machine to move, and a force in a second direction opposite to the first direction is applied to the washing machine, and the teeth of the rollers mesh with the tooth grooves of the support body and are fixed and supported together Secure the washing machine. When the washing machine of the present invention needs to be moved, it only needs to rotate the position of the washing machine and apply a certain force in the first direction to push the washing machine, and when the washing machine moves to the target position, it only needs to move in the opposite direction for a small distance The fixing of the washing machine is completed, thereby solving the problem that the existing washing machine is difficult to move.

The invention provides auxiliary equipment for a computer network major. The auxiliary equipment comprises a rotating table, a connecting shaft, a motor, a camera, an adjustment lever, a rocker, a pulley, a telescopic rod, a rotating rod, a mounting block and a loop bar, wherein the motor is assembled at a middle position inside the equipment main body; the connecting shaft is arranged on the upper end face of the motor; the rotating table is arranged on the upper end face of the connecting shaft; the adjustment lever is arranged on the upper end face of a mounting board; the camera is arranged on the left end face of the connector. The problem that visual display cannot be realized during the original computer network major teaching is solved. The rotating rod is arranged inside the base;the rocker is arranged on the left end face of the rotating rod; the mounting block is arranged on the right end face of the rotating rod; the telescopic rod is arranged on the rear end face of the rotating rod; rollers are arranged on the lower end face of the telescopic rod; the loop bar is arranged on the upper side of the telescopic rod. The problem that the auxiliary display equipment main body for the original computer network major is difficult to move is solved. The auxiliary equipment disclosed by the invention is reasonable in structure, convenient to use, intuitive in teaching andconvenient to move.

The invention relates to the technical field of exhibition tools, and discloses a display board special for exhibitions. The display board special for exhibitions comprises a first display board, movable grooves are formed in the front face of the first display board, and movably sleeve the movable plates, positioning blocks are fixedly connected to one sides of the tops of the movable plates, theside faces of the movable plates are in transmission connection with the inner wall of the first display board through movable springs, and the front faces of the first display board are in threadedconnection with the front faces of the movable plates through fixing bolts. According to the display board special for exhibitions, through matching of the movable plates, the movable springs and thefixing bolts, the width of the first display board can be adjusted, the superficial area of the first display board is thus increased, the first display board can be suitable for posters or display articles with different sizes, and the practicability of the display board is improved; the positioning blocks can have the positioning effect on the movable plates in the moving process of the movableplates, it is avoided that the movable plates shift when the movable plates move, and the stability of the movable plates in the moving process is guaranteed.

The invention provides intelligent installation equipment for an upper structure of a contact network. The equipment comprises an automatic walking positioning vehicle and positioning system which is divided into a vehicle body and a visual scanning distance measurement module, and the automatic walking positioning vehicle and positioning system comprises a hydraulic foot support, a vehicle body guardrail, and a base plate installation manipulator; a multi-joint robot and base plate clamping mechanism is arranged at the top of the vehicle body of the automatic walking positioning vehicle and positioning system, and the multi-joint robot and base plate clamping mechanism comprises a hydraulic clamping assembly; and automatic folding telescopic operation platform is arranged at the top of the vehicle body of the automatic walking positioning vehicle and positioning system and comprises a swing mechanism, a lifting fixed section, a lifting second section, a lifting third section and a lifting multi-section hydraulic cylinder. The problems that a scaffold and a hoisting device belong to heavy unpowered equipment and are difficult to move in a tunnel, poor in safety protection performance and large in occupied manpower, large hidden dangers exist in construction safety, and the requirements for the construction progress and work efficiency at the current stage cannot be met are solved.