70 results about "Ground lift" patented technology

The invention discloses a method for testing the fluid-production section of a horizontal pump well, which relates to the field of testing of fluid-producing sections of horizontal oil field wells. The method comprises the following steps of: connecting a long plunger hollow oil pump to the bottom of an oil pipe, feeding deep into the horizontal well by a design pump depth, and setting the long plunger hollow oil pump in a casing; synchronously feeding a continuous oil pipe and a logging cable deep into the lower part of a segment to be tested on the fluid-producing section of the horizontal well, pressing the ground where the continuous oil pipe is positioned to separate a releasing pipe nipple from the continuous oil pipe, and pulling the continuous oil pipe out; and connecting the upper end of the oil pipe with a reciprocating ground lifting device to perform reciprocating pumping actions, starting a fluid-producing section tester, pulling the logging cable slowly, and moving the fluid-producing section tester upwards for testing during production. According to the method, oil field No.5 casing well completion and fluid-producing section testing of the horizontal well by lifting with an oil sucking machine are realized; and meanwhile, the quantity of used equipment is small, the operation time is short, and the well testing cost is lowered.

The invention relates to a device used for charging an electromobile from the bottom of the electromobile. A charging device is composed of a ground lifting device, a vehicle-mounted charging module and a ground charger, wherein when the electromobile is parked in place, the lifting device is lifted, and a charging plug is conducted with a socket so as to charge the electromobile. The device provided by the invention has the functional characteristics that a. a charging pole is positioned on the bottom of the electromobile in charging, so that a shielding protection is provided for the charging pole, and the charging pole can work all weather without being affected by rain and snow; b. a passersby can not contact with an electrode, so that the security is high; c. the structure is simple, and the parking space is not occupied; and d. the requirements on the electrombile parking position are not high, and a state transit routine operation of a bus company is convenient.

The invention discloses a ground lifting projection screen, which has the characteristics of simple structure, small volume and the like. The upper end of a curtain is taken up by a pull rod, and the lower end of the curtain is taken up with a winding pipe; a synchronous rod passes through the winding pipe, and the winding pipe is supported on the synchronous rod via a bearing; a torsion spring is arranged between the winding pipe and the synchronous rod so that the curtain is tensioned between the pull rod and the winding pipe; two T-shaped steering gear cases are symmetrically arranged at two ends of the synchronous rod; X-axes of the T-shaped steering gear cases are connected to the ends of the adjacent synchronous rod; each foldable support is formed by hinging at least two rods, the two foldable supports are symmetrically arranged on two sides of the curtain, a lower rod of each foldable support is connected with a Y-axis of each adjacent T-shaped steering gear case, and upper rods of the foldable supports are connected with the pull rod; limiting modules are arranged on two sides of the curtain and correlated with the adjacent foldable supports so that the foldable supports are kept at spread positions after the foldable supports rotate to extreme positions; and the X-axes and the Y-axes are perpendicular to each other spatially.

The invention relates to a method for automatically adjusting the bucket height of road scraper and relative device. It can solve the defects of present road scraper which can only control the bucket via hand. It is characterized in that: a laser receiving control tracker (2) is mounted on the bucket of road scraper; a horizontal laser emitter (1) is mounted at the front of road scraper; and before the operation, adjusting the laser of horizontal laser emitter (1) to be parallel with operated rod and irradiate the photodiode sensor in the middle of laser receiving control tracker (2); in the operation, if the baffle on the ground lifts the front wheel of road scraper, the laser emitted from laser emitter (1) will de-center the photodiode sensor in the middle part, therefore, the laser receiving control tracker (2) will output the signal to lift or reduce the drop the bucket. The invention can completely remove the road baffle with high working efficiency.

A combined grabbing and conveying matched device of a fungus mushroom cultivation box comprises a grabbing mechanism, a lifting mechanism and a conveying mechanism. The grabbing mechanism comprises a high-altitude grabbing mechanism body and a ground grabbing mechanism body, and the lifting mechanism comprises a high-altitude lifting mechanism body and a ground lifting mechanism body; the conveying mechanism comprises a high-altitude conveying mechanism body and a ground conveying mechanism body, and a high-altitude grabbing and lifting conveying device is formed by the high-altitude grabbing mechanism body, the high-altitude lifting mechanism body and the high-altitude conveying mechanism body; and a ground grabbing and lifting conveying device is formed by the ground grabbing mechanism body, the ground lifting mechanism body and the ground conveying mechanism body, and the ground grabbing and lifting conveying device and the high-altitude grabbing and lifting conveying device are arranged side by side. The combined grabbing and conveying matched device of the fungus mushroom cultivation box is convenient to use and higher in working efficiency.

The invention discloses a loose blasting type hot ore development system and a construction method thereof. The hot ore development system comprises a ground lifting system, a large-diameter verticalshaft, an underground high-temperature high-pressure heat exchange water tank, a heat exchange flow guide channel, a water-rock geothermal flow storage layer, a movable sealing device and the like, wherein the water-rock geothermal flow storage layer is formed by access blasting tunnels and a main tunnel. The hot ore development system is provided with an injection pipeline and a collecting pipeline along the inner wall of the large-diameter vertical shaft, the injection pipeline communicates with the collecting pipeline through the heat exchange flow guide channel of the underground high-temperature high-pressure heat exchange water tank in dry hot rock, the circulating main tunnel is arranged around the underground high-temperature high-pressure heat exchange water tank, and the plurality of rows of access blasting tunnels are horizontally arranged along the main tunnel, a hot ore blasting fracture flow storage layer is formed through caving mining method loose blasting, moreover, the movable sealing device is arranged above the vertical shaft of a blasting layer, through a U-shaped pipe principle, through the injection pipeline and the collecting pipeline, cold water and hot water in the high-temperature high-pressure water tank exchange heat energy, the water with the heat energy is conveyed to the ground to be converted into electric energy for people to use, and dual heat exchange is realized.

The invention provides a single-action arm ground lifting pole with a flowing water counterweight system, which comprises a lifting pole foundation, a jacking sleeve frame, a tower body, a rotary assembly and a lifting pole head that are arranged sequentially from the bottom up, wherein the rotary assembly is provided with a lifting arm and a balance arm. The lifting pole is characterized in that the rotary assembly and the balance arm are provided with the flowing water counterweight system; the flowing water counterweight system comprises hydraulic pushers, small water tanks and a counterweight water tank; the hydraulic pushers and the small water tanks are arranged on the rotary assembly; the counterweight water tank is arranged at the tail of the balance arm; and the small water tanks are connected with the counterweight water tank via water pipes. Compared with the prior art, the stress condition of the single-action arm ground lifting pole with the flowing water counterweight system can be improved, the lifting capacity of the lifting pole is improved, or the sectional dimension and weight of a pole body are decreased under the same lifting capacity, and the single-action arm ground lifting pole better meets erection requirements of an ultra-high voltage transmission line iron tower.

A flight control system for an aircraft includes at least one flight control computer that carries out a ground lift dump function that selectively extends a spoiler located on a wing of the aircraft into an airflow passing over the wing. The at least one flight control computer includes arming logic that is responsive to an input signal indicative of an aircraft parameter to automatically arm the ground lift dump function during certain phases of operation of the aircraft. The at least one flight control computer includes spoiler deployment logic that is responsive to an arming signal from the aiming logic which indicates that the ground lift function is armed to deploy the spoiler into its extended position within the airflow passing over the wing of the aircraft to assist in stopping the aircraft while the aircraft is on the ground.

The invention discloses an arm-type intelligent cutting and parallel tunneling-bolting integrated machine and solves the problems of the prior art, the position of a tunneling machine body is difficult to adjust and locate, and a coordinate reference system for automatic cutting is easily varied during automatic cutting positioning. The arm-type intelligent cutting and parallel tunneling-bolting integrated machine can provide full-automatic cutting on any cross face, has no need for adjusting the direction of the machine during cutting and can provide intelligent cutting and parallel tunneling-bolting. According to the technical scheme, the arm-type intelligent cutting and parallel tunneling-bolting integrated machine comprises a base part, a cutting part of the tunneling machine, a sensing system and a computer numerical control system; the sensing system transmits a detected tunneling machine signal to the computer numerical control system to allow intelligent cutting; the cutting part and the base part are connected through a sliding device and a pushing device; lifting devices are arranged in the front and rear of the cutting part; when the lifting devices on a ground lift up the cutting part and drive the base part in air, the pushing device drives the base part to advance; when the lifting devices retract the base part to the ground, the pushing device pushes the cuttingpart to advance and feed for cutting.

The invention discloses a high-pressure grouting lifting deformation monitor and an installation method thereof. The monitor comprises a reference pipe and a protective pipe; the bottom end of the reference pipe is connected with a sliding inner shaft, an inner anchor head is mounted on an inner anchor pipe, the bottom end of the protection pipe is connected to a sliding outer sleeve, the sliding outer sleeve sleeves the sliding inner shaft, and a sealing component is arranged between the sliding outer sleeve and the sliding inner shaft; an elastic rubber plug is embedded between the sliding inner shaft in the lower portion of the reference pipe and the sliding outer sleeve in the lower portion of the protective pipe in a sleeved manner; a ground lifting observation dial gauge is mounted at the top end of the reference pipe; and the reference pipe, the sliding inner shaft, the inner anchor pipe and the inner anchor head include hollow channels respectively, and the hollow channels are connected in series to form a grouting channel. The monitor and method can effectively prevent the protective pipe from consolidating with the reference pipe due to grouting leak in the high-pressure grouting process, sealing between the protection pipe and the reference pipe and free sliding performance during deformation are ensured, and the observation precision of the lifting deformation observing device is ensured.

The invention relates to the field of aerial machinery, in particular to a ground lifting machine for an aerial remote sensor. The ground lifting machine for the aerial remote sensor comprises a horizontal two-degree-of-freedom adjusting platform and a vertical adjusting platform, wherein the horizontal two-degree-of-freedom adjusting platform is arranged on the vertical adjusting platform. The ground lifting machine can be convenient to realize short-distance transportation of the aerial remote sensor, and can be rapid and reliable to realize accurate butt joint between an aerial remote sensor interface and an airplane interface in the direction X, the direction Y and the direction Z in the process of assembly and disassembly.

The invention discloses a ground lifting device for a capsule body of a tethered balloon. The ground lifting device is mainly composed of a soft bearing pad, an arched support, a slide rail, a fast stop pin and a fixed bracket. The ground lifting device is suitable for lifting the capsule body when the tethered balloon of 200 m3-12000 m3 is moored on the ground, the fixed bracket is mounted at the front end of a revolving platform of tethered balloon mooring equipment, the arched support is connected with the fixed bracket through a fixing shaft and the fast stop pin, and the arched support moves back and forth along a guide groove of the fixed bracket through the slide rail and can be locked at a designated position. The soft bearing pad is mounted on the top of a movable support and contacts with the capsule body of the ground tethered balloon, wearing of the capsule body is prevented, and a buffering effect is achieved. The arched support is turned by 90 degrees and locked through the guide groove in transport. According to the ground lifting device for the capsule body of the tethered balloon, operation is easy, when the tethered balloon moors on the ground, the capsule body is prevented from sinking, limiting is conducted, a gate-shaped structure design is adopted, and it is ensured that the arched support has sufficient rigidity to bear the sink force of the tethered balloon.

The invention discloses an antiskid folding type ground lifting machine suitable for car maintaining. The antiskid folding type ground lifting machine comprises a base, a working platform, a right baffle, a left baffle, a folding rod set and a double-action hydraulic cylinder, wherein the right baffle and the left baffle are arranged at the two ends of the working platform correspondingly; and the folding rod set and the double-action hydraulic cylinder are arranged between the base and the working platform. The folding rod set comprises a first push rod, a second push rod, a third push rod, a forth push rod, a right hinge shaft and a left hinge shaft. One end of the first push rod and one end of the third push rod are hinged to the base. One end of the second push rod and one end of the fourth push rod are hinged to the working platform. A right piston rod of the hydraulic cylinder, the other end of the first push rod and the other end of the second push rod are connected in sequence through the right hinge shaft. A left piston rod of the hydraulic cylinder, the other end of the third push rod and the other end of the fourth push rod are connected in sequence through the left hinge shaft. The folding rod set and the double-action hydraulic cylinder are combined, so that the stability during ascending and descending of the lifting machine and the synchronization of the working platform are ensured.

An in-ground lift (10) is provided with a condensate scavenging system (30) that includes a pump (32) and a control (34) that is connected to the pump (32) and configured to selectively switch the pump (32) between a non-pumping state wherein the pump (32) is inactive and a pumping state wherein the pump (32) is expelling condensate from the base structure (12) of the lift (10). It is preferred that the control (34) be configured so that the pump (32) automatically switches between the non-pumping state and the pumping state in response to a predetermined change of state in the in-ground vehicle lift (10).

The invention discloses a self-made household earthquake alarming device. The device is composed of a longitudinal wave detecting circuit, a transverse wave detecting circuit, an illumination circuitand a sound alarming circuit, the judgement of early earthquakes is conducted through the detection on a horizontal plane, when an earthquake takes place, longitudinal waves firstly arrive on the ground to allow the ground to generate corrugated lifting and lowering, a ground lifting and lowering signal is detected by the longitudinal wave detecting circuit, kermesinus light is sent by a light bulb LD, a siren sound is sent by an integration circuit IC4 to remind people to rapidly evacuate, when transverse waves arrive on the ground, the ground is shaken left and right, a left and right swinging signal is detected by the transverse detecting circuit, the light bulb LD is changed into normal light color from kermesinus to provide convenience for people to evacuate, and the siren sound sentby a loud speaker SW is louder to remind more people to rapidly evacuate. The alarming device has the advantages that the structure is simple, the alarming effect is significant, and the alarming device is particularly suitable for the use at night.

The invention provides a self-propelled dust collector matched with a ground lifting roller brush assembly. The self-propelled dust collector mainly comprises a machine body and the roller brush assembly. The machine body is provided with a dust collecting box, a dust sucking device and multiple wheel bodies. The bottom wall of the machine body is recessed inwards to form a containing groove. The roller brush assembly is arranged in the containing groove. Two pivot arms of a roller brush frame of the roller brush assembly are arranged in the containing groove of the machine body in a pivoted mode. A flexible connecting part of the roller brush assembly is through to form a channel, and a second opening of the roller brush frame is communicated with a dust collecting opening of the dust collecting box through the channel of the flexible connecting part. Thus, when the machine body passes an obstacle terrain, when the roller brush frame bears the external force effect, due to the fact that the pivot arms can swing up and down, a dust collecting piece of the roller brush frame can be kept attached to the ground, and then the sweeping effect is improved.

The invention discloses a steel cable type flight experiment table and belongs to the technical field of plant protection unmanned aerial vehicles. The table comprises a frame body, a flying trolley,a clamp and a ground lifting platform. A friction winch is adopted for closed-loop traction, so through the flying trolley, rapid acceleration and deceleration can be achieved, the track length is shortened and the test section distance is ensured to the greatest degree. Meanwhile, a steel cable replaces the track, so that the structure is simplified. In addition, a ground lifting platform adoptsa hydraulic shear type lifting vehicle to be raised and descend, so the height of a to-be-tested target is adjustable through the lifting vehicle, the complexity of a connection clamp of the flying trolley can be greatly reduced, the structure of the flying trolley is further simplified, and the load of the flying trolley is effectively improved. The steel cable type flight experiment table provided by the invention is more suitable for the actual field operation condition, can simulate the actual operation environment, and can simulate the actual spraying effect under the conditions of simulating different flight heights, speeds and angles of a plant protection unmanned aerial vehicle outdoors.

The invention discloses a novel railway truck for piggyback type transportation. The novel railway truck comprises pallets and ground lifting rotating devices, wherein the pallets can be stacked on bottom frames of railway trucks to be used for allowing highway trucks or highway semi-trailers for the piggyback type transportation to be placed; the ground lifting rotating devices are arranged on the ground, and are used for driving the pallets to rise and fall by a predetermined height relative to the bottom frames, and then driving the pallets to rotate relative to the bottom frames along an arc-shaped guide rail in the horizontal surface. Compared with the prior art, the novel railway truck has the advantages that conventional bottom frames of the railway trucks can be basically used, and special bottom frames for the piggyback type transportation do not need to be provided, so that the manufacturing cost of the railway trucks for the piggyback type transportation is reduced. In addition, loading and unloading processes can be completed by only rotating the pallets which are light in weight, and requirements for the power properties of a vehicle-mounted rotating device are reduced.

An in-line skate wheel having skew-mounted and self-powered illuminating devices is disclosed. The wheel includes a first and a second anchor joined together creating a chamber in the middle, a rotor held in the chamber, multiple illuminating devices inserted with a skew angle on the rotor, a stator fitted in the rotor, an axle passing through the two coupled anchors and the stator, and a protective covering placed around the rim of the two anchors. The skew-mounted illuminating devices allow the skate wheel to be fitted on in-line skates and skate boards that can only use small wheels. Further, the present design can prevent scratching of the illuminating devices against the ground that would otherwise cause abrasion on the surface of the illuminating devices and attenuate the light given out by the illuminating devices.

The invention discloses a bicycle storing and taking device. The device comprises a frame, a ground lifting device, a buffer device and an internal rotation lifting device, and a clamping mechanism moves among different parking space platforms, receives bicycles on lower combs and sends the bicycles into parking space. The buffer device can temporarily store a small number of the bicycles, directly taking out the bicycles from the buffer device is convenient and fast, while a large number of the bicycles are stored on the parking space platforms; however, the bicycles on the parking space platforms can be transferred to the buffer device in advance by the internal rotation lifting device after an instruction is acquired, the bicycle taking speed is improved, and the advantage of high capacity of the parking space platforms is comprehensively utilized, the internal rotation lifting device and the buffer device can relatively operate independently, and congestion during rush hour parkingis reduced. The bicycle storing and taking device and a bicycle storing and taking method are very efficient. The invention is used in the field of automation equipment.

In an audio system my balanced interface audio connector couples an audio driver device and an audio receiver device by means of a cable containing a pair of conductive differential lines within a shield. The balanced interface audio connector comprises an electronic filter and a manually operable switch by means of whose displacement between a first position and a second position, the electronic filter can be activated or deactivated. In the first position of the switch, the electronic filter is deactivated and the shield is connected to the audio connector's ground contact pin. In the second position of the switch, the electronic filter is activated and the shield is connected through the electronic filter prior to connection with the connector's ground contact pin. The method of using my balanced interface audio connector functions as a ground lift to safely break a ground current loop and simultaneously suppresses radio and electro-magnetic frequencies from contaminating the final audio program signal.

The environment-friendly seesaw parking method and equipment, fixedly install multiple parking platform support columns on the ground through the foundation, and the support columns are generally higher than 2.2 meters; a support shaft is installed at one end of the parking platform, and the support shaft passes through the bearing and the seesaw multi-purpose parking platform connect. Before the car enters the warehouse, the balance tension spring is released, the lifting plate is grounded, and the car climbs up the parking plate along the lifting plate. The parking platform is provided with buffer springs or buffer pads, so that the parking plate can be gently landed on the parking platform. The bottom can still be used as a passage for people and cars, and it can also be used for parking. Before leaving the warehouse, mount the balance tension spring. After the car drives out of the parking platform, the lifting plate falls to the ground. Due to the effect of the balance tension spring, the lifting plate lands smoothly; Parts, at the junction of the lifting plate and the ground, there is an elastic circlip and a pressure control plate to ensure the safety of the car. The method can create and double the parking space, and completely solve the difficulty of parking.

The invention provides a releasing method for an expanded type horizontal floating sounding balloon. According to the method, parameters such as preset horizontal floating height atmosphere pressure,temperatures and densities are checked, assisted by balloon skin pressure differences and temperature radiation modification, a net ground lifting force of a released expanded balloon is calculated, the balloon is released when meeting a specific net ground lifting force, and a function of fixed-height horizontal floating of the expanded balloon can be achieved. Aiming at an expanded balloon whichis small in manufacturing technique difficulty, high in cost performance ratio and very convenient and rapid to release, the invention provides a method for releasing the balloon by confirming the net ground lifting force, the result that balloon skin is expanded outwards because of pressure differences inside and outside the balloon can be avoided, and thus long-term horizontal floating of the expanded type horizontal floating sounding balloon at a certain height can be achieved.

The invention relates to a universal linear tower ground wire lifting device. The device comprises a lower wire tightening screw (5), an upper wire tightening screw (4) which is sleeved at an upper portion of the lower wire tightening screw through thread matching and has inner and outer reverse threads, and a bearing cross section (3) and a pressure board (8) sleeved at the upper wire tighteningscrew through thread matching, a cantilever type aluminum alloy base (1) sleeved on two end connectors of the bearing cross section through end ear boards, an operation handle (10) sleeved at an upperend of the upper wire tightening screw, an integrated U-shaped slot connection head (6) processed at a lower end of the lower wire tightening screw, and a locking bolt (7) assembled at the connectionhead, wherein the cantilever type aluminum alloy base is an integral arch back structure, the back arch has a U-shaped slot (1a) with a slot opening facing downwards, an inner end of the base is processed with a groove (1b) penetrating up and down, and two side boards of the groove are taken as end head ear boards. The universal linear tower ground wire lifting device is advantaged in that lifting operation of power transmission line linear tower overhead ground wires is convenient, the wires can be rapidly lifted and reset, the device is further suitable for power transmission lines of all voltage grades, the device is light and labor-saving, and the device is safe and reliable.

The invention discloses a building method for a space truss with a spiral ball adjusting and supporting unit. The building method comprises the following steps that (1) the spiral ball adjusting and supporting unit is assembled, the spiral ball adjusting and supporting unit comprises a steel pipe scaffold, a jacking bracket and a steel plate, the jacking bracket and the steel plate are connected to form a detachable support platform frame through bolts, the lower end of the jacking bracket is provided with a screw with a thread, the jacking bracket is screwed into a scaffold steel pipe through the screw, so that the scaffold and the jacking bracket are in adjustable movable connection, and the steel plate is provided with a cylinder support steel pipe used for supporting a sphere joint; (2) the structure of the space truss is divided into units, specifically, the whole truss structure is divided into a plurality of basic units according to actual dimension layout; (3) a ground lifting unit is formed in a spliced mode; and (4) lifting of the lifting unit is conducted. During specific work, building of the space truss is conducted according to the steps, and the spiral ball adjusting and supporting unit can adjust and control the height of the sphere joint.

The invention discloses a foldable horizontal drill gauge which can be raised and lowered on the ground, which comprises a shell, an inner piece, a handle, and an adjustment rod and a dimension bar arranged on the upper surface of the shell. The lower surface of the shell is hinged with not less than three ring-shaped Evenly distributed telescopic rods, each telescopic rod is independently controlled by its own motor; the upper surface of the shell is also provided with a bubble level. The purpose of the present invention is to provide a foldable horizontal drill gauge that can be raised and lowered on the ground, which solves the problem that when using a drill gauge to measure in the prior art, it needs to be held manually and it is difficult to ensure its level, so as to improve the measurement accuracy of the drill gauge and facilitate induction. The purpose of placement.

The invention discloses a novel flexible vehicle body assembly machine system, belongs to the technical field of armored vehicle manufacturing, and aims to solve the problems of long time consumption, low efficiency and high risk in vehicle body machining. The system comprises a carrying platform, a vehicle body assembly tool, an auxiliary device, a numerical control assembly machine and a cutting and welding robot, the carrying platform comprises a cast iron platform, a driving device and platform sliding wheel sets, the vehicle body assembly tool comprises a positioning tool. the positioning tool is used for fixing a vehicle body on the carrying platform, the auxiliary device comprises a semi-gantry crane bridge and a ground lifting appliance; the semi-gantry crane bridge is arranged at the end part of the carrying platform, the ground lifting appliance is arranged on the side of the carrying platform, the assembly control machine is arranged on the carrying platform, the assembly mechanism control system is used for controlling an assembly gripping apparatus to move on a linear sliding table, and the cutting and welding robot comprises a robot body, a robot control system and a truss system. The production efficiency is improved, the number of operators is reduced, the labor intensity is reduced, the flexibility degree is high, and efficient flexible production is achieved.

An in-ground lift (10) is provided with a condensate scavenging system (30) that includes a pump (32) and a control (34) that is connected to the pump (32) and configured to selectively switch the pump (32) between a non-pumping state wherein the pump (32) is inactive and a pumping state wherein the pump (32) is expelling condensate from the base structure (12) of the lift (10). It is preferred that the control (34) be configured so that the pump (32) automatically switches between the non-pumping state and the pumping state in response to a predetermined change of state in the in-ground vehicle lift (10).

The invention relates to an intelligent Internet education system based on projection mapping. A projection mapping room is provided with an intercepting door body, a wall baffle telescopic channel, aground lifting channel, a ground baffle telescopic channel and a projection device telescopic channel, a telescopic device comprises a wall telescopic guide rail, a wall driving motor, a wall projection mapping baffle, a ground telescopic guide rail, a ground driving motor and a ground projection mapping baffle, a lifting device comprises a ground lifting hydraulic pump, a ground lifting hydraulic rod, a ground lifting platform and a table and chair telescopic passage, a projection mapping device comprises a projection hydraulic pump, a projection hydraulic rod, a teaching projection mappingdevice, a table and chair hydraulic pump, a table and chair hydraulic rod, a table and chair platform, a projection mapping table and a seat, a teacher acquisition device comprises a teacher projection mapping device and a teacher microphone, an identification device comprises a first camera, a second camera and a teaching speaker, a positioning device comprises a first positioning module and a second positioning module, a wireless device is located in the control center, and the control center is located at the planning location.