254results about How to "Free from harm" patented technology

The invention discloses an automatic illumination adjusting method and system for an agricultural greenhouse, a medium and a product, and relates to the field of seed and seedling cultivation, the method comprises the following steps: obtaining image data of target seedlings in a seedling raising area, and determining seedling height data and leaf density distribution of the target seedlings according to the image data; determining initial illumination intensity and illumination distribution data of the seedling raising area according to the image data and the illumination parameters of the seedling raising area; when the initial illumination intensity is lower than a preset light intensity lower limit, determining a target adjustment angle of the light supplementing plate based on the seedling height data, the leaf density distribution and the illumination distribution data; adjusting the inclination angle of the light supplementing plate to a target adjusting angle, and obtaining the corrected illumination intensity of the seedling raising area in real time; and when the corrected illumination intensity is lower than the preset light intensity lower limit, adjusting the luminous intensity of the LED light source until the corrected illumination intensity is not lower than the preset light intensity lower limit. According to the invention, energy loss of agricultural greenhouse light supplement can be saved.

The invention discloses an automobile heat-insulating film and a preparation method thereof, and belongs to the technical field of heat-insulating films, and the heat-insulating film is prepared by introducing nanometer indium tin oxide, nanometer tungsten oxide, nanometer titanium oxide, nanometer zinc oxide and other nanometer oxides and combining with a modified material. The preparation method comprises the following steps: mixing nano oxide with water, performing ultrasonic dispersion, adding a coupling agent and a modified material to form composite slurry, mixing the composite slurry with polymers such as polyethylene glycol terephthalate and a plasticizer, coating the surface of glass with the mixture, and drying. Compared with the prior art, the obtained heat insulation film not only has excellent optical transparency and heat insulation effect, but also shows good mechanical property and environmental erosion resistance, and meets the strict requirements of modern automobiles on heat insulation and protection performance.

The invention relates to a halogen-free flame-retardant TPU composite material and a preparation method thereof, and belongs to the technical field of high polymer materials. The halogen-free flame-retardant TPU composite material is prepared from the following components in parts by weight: 3 to 10 parts of a modified flame retardant, 2 to 10 parts of phenoxy cyclophosphazene, 80 to 100 parts of TPU particles, 90 parts of N, N-dimethylformamide, 0.8 to 1.2 parts of an ultraviolet light absorber and 2.5 to 3.5 parts of a lubricating agent, in the modified flame retardant, ammonium polyphosphate is heated into polyphosphoric acid, heat insulation and flame retardance are achieved, the comprehensive performance of the material is improved, and a quaternized structure and a carbamate bond synergistically enhance the flame retardance and heat resistance of the material; in the ultraviolet light absorber, cyanuric chloride and benzotriazole intermediates absorb ultraviolet rays, so that the damage of the ultraviolet rays to the material is reduced, and the ageing resistance and the toughness are enhanced; the halogen-free flame-retardant TPU composite material prepared by the invention not only has good flame-retardant and heat-resistant effects, but also has excellent ultraviolet resistance.

The invention discloses an acne-removing essence and a preparation method thereof, and particularly relates to the technical field of skin care products, the acne-removing essence comprises the following components by mass: 0.5-5% of salicylic acid; 1%-5% of tartaric acid; 2%-6% of nicotinamide; 0.5%-2% of colloidal sulfur; 1.5%-3% of tea tree essential oil; 1%-2% of hyaluronic acid; 0.5%-1% of ceramide; 1%-3% of glycerol; 1%-2% of trehalose; the salicylic acid is used for penetrating into skin, helping to relieve dead skin cells, reducing inflammation and accelerating skin renewal; the tartaric acid is used for realizing a stripping effect, can remove aged cuticles on the surface of the skin and promote the generation of new cells, so that the problem of acnes is helped to be improved. The acne-removing essence prepared by the invention has a relatively good moisturizing effect, so that skin barrier can be well maintained, keratin metabolism is promoted, grease secretion is inhibited, acne is effectively prevented, inflammatory response of the acne is relieved, and the actual use effect of the acne-removing essence is relatively good.

The utility model provides a protection device for an underwater animal experiment, and belongs to the field of underwater animal experiments. The brain cover part, the viscera cover part and the hip cover part are driven to be opened or closed through the opening and closing module, and the problem that in the prior art, an experimental device capable of protecting the brain and viscera of an experimental animal body from being damaged by vibration signals is lacked is solved. The device comprises a cover body module, a mounting base and an opening and closing module, the cover body module is fixedly mounted on the mounting base, and the opening and closing module controls the cover body module to be opened and closed; the cover body module comprises a brain cover part, an internal organ cover part, a hip cover part, a front side cover, a rear side cover, a bottom cover, a first partition plate and a second partition plate; the brain cover part, the viscera cover part, the hip cover part, the front side cover, the rear side cover, the bottom cover, the first partition plate and the second partition plate are each provided with an interlayer.

The invention relates to the technical field of the Internet of Things, and discloses a safe eye protection method and system for realizing a free screen based on the Internet of Things, and the method comprises the steps: detecting a human face region of a target user under a screen display picture, calculating the region area and the head posture in the human face region, and calculating a fixation point in the human face region through the head posture; recognizing the blinking frequency of the face area, and calculating the face-screen display distance between the face area and the free screen; analyzing the visual fatigue of the target user under the screen display picture, and determining the eye state of the target user under the screen display picture; and when the eye state is abnormal, identifying an external environment and screen display characteristics of the screen display picture, extracting environment characteristics of the external environment, mining influence factors influencing the eye state based on the screen display characteristics and the environment characteristics, adjusting picture parameters of the free screen according to the influence factors and the eye state, and generating a safe eye protection report of the free screen. The safe eye protection effect of the free screen can be improved.

The utility model relates to the field of landscape greening wall equipment, in particular to a municipal landscape greening wall which comprises a fixing base, a greening wall body, a planting pot, a watering assembly and a shielding assembly. The greening wall body is arranged on the fixed seat; the multiple sets of planting pots are arranged on the two sides of the greening wall body side by side; the watering assembly is arranged on the greening wall body and located above the planting pots, and the watering assembly comprises a connecting plate; a plurality of groups of connecting plates are arranged, and the plurality of groups of connecting plates are slidably arranged on the greening wall body; the shielding assembly is arranged on the greening wall body and used for shielding the planting pots. The sprayer with the adjustable height can provide personalized water supply for each plant, and the growth requirements of the plants are met; the baffles can effectively reduce direct sunlight irradiation on plant leaves, and the plants are protected from being damaged.

The invention relates to an anti-impact assembly and a zero-gravity seat, the anti-impact assembly is used for being connected with a seat body of a vehicle, and the anti-impact assembly comprises a bottom plate; a pitching substrate; the motor is respectively connected with the bottom plate and the pitching substrate, and the motor is used for driving the pitching substrate to move; a radar system; a vision system; the safety system is electrically connected with the motor and comprises a sensor module and a control module; when the vehicle runs normally, the control module adjusts the seat body into a first posture through the motor; when the sensor module detects that the vehicle is braked emergently and / or has a collision risk, the control module adjusts the seat body into a second posture through the motor; in the first posture, a first pitching angle is formed between the bottom of the seat body and the bottom plate; and in the second posture, a second pitching angle is formed between the bottom of the seat body and the bottom plate. The posture of the seat can be automatically adjusted, and the safety of passengers in the vehicle can be guaranteed in an emergency.

The utility model discloses a small hole precision machining bench drill, and relates to the field of machining bench drills. The drilling machine comprises an adjusting mechanism and a drilling machine body, a mounting head and a protection mechanism are arranged at the bottom of the drilling machine body, and through the arrangement of the protection mechanism, before operation, a mounting ring can be mounted in a mounting groove in a rotating mode, then a plurality of baffle rings can be gradually expanded downwards through mutual clamping of clamping rings, and the drilling machine body can be mounted in the mounting groove in a rotating mode. By means of the arrangement, due to the fact that in the drilling process, material fragments may splash due to high-speed rotation of a drill bit, the baffle ring can effectively block the splashing fragments and protect an operator from being hurt, the baffle ring is more stable due to the existence of the balance weight ring, the position of the baffle ring can be kept even when the baffle ring rotates at a high speed, and therefore the material fragments can be prevented from splashing. Therefore, the risk of accidental injury caused by misoperation or equipment failure is reduced.

The invention relates to the technical field of intelligent cabins, in particular to a headrest adjusting system and method intelligently matched with the height of a passenger, a follow-up adjusting module accurately adjusts the height and angle of a headrest in real time according to the height, the sitting posture and the seat state of the passenger, and the passenger height can be adjusted in real time. And it is ensured that the passengers have the best head and neck support in the driving process. The safety monitoring module continuously monitors the vehicle state and the sitting posture of the passenger, and measures are taken once abnormity is found, so that the driving safety is ensured. More importantly, the impact force calculation module can quickly and accurately calculate the impact force of the headrest on the neck of the passenger according to the acceleration of the vehicle, the collision direction and the sitting posture state of the passenger under the emergency condition that the vehicle collides. Afterwards, the impact force calculating and buffering module responds immediately, and the impact force is effectively absorbed and dispersed by controlling a buffering mechanism in the headrest, so that the passengers are protected from being injured to the maximum extent.

The invention discloses a handheld electric tool synchronous motor control method, device, controller and system, and the method comprises the steps that the controller obtains the current operation parameters of a synchronous motor, and the operation parameters comprise a bus voltage value, a bus current value, a duty ratio and a commutation interval; the current input power is calculated according to the bus voltage value, the bus current value and the duty ratio, and the current rotating speed is calculated according to the commutation interval and the number of pole pairs of the synchronous motor; searching the current input power and the output torque corresponding to the rotating speed based on a set lookup table; based on the set output torque threshold value and the current output torque, the target operation state of the synchronous motor at the next moment is decided. According to the application, automatic shutdown can be performed in time when the set output torque value is reached, and the output torque value is smaller than the torque value when the output head is clamped and larger than the torque value when an operator normally uses a tool, so that the use requirement of the operator is met, and the operator is protected from being injured by the tool.

The utility model discloses a lubrication type gear motor assembly, which belongs to the technical field of gear motors and comprises a motor body, the top of a small oil tank is fixedly communicated with an oil discharge pipe, and the inner side wall of the small oil tank is fixedly connected with a sponge block. According to the lubrication type gear motor assembly, through cooperative use of a first sleeve plate and a second sleeve plate, a bearing is conveniently installed outside a shaft rod, lubricating oil is stored through the action of a small oil tank, and through cooperative use of an oil discharge pipe and a sponge block, the lubricating oil slowly flows between an outer ring and an inner ring of the bearing; through cooperative use of a movable plate and an annular plate, rotation of an outer ring of the bearing is facilitated, lubricating oil is evenly distributed between the outer ring and an inner ring of the bearing, and therefore the effect of lubricating the bearing outside the shaft rod is achieved, the friction force of the bearing in the running process is reduced, the running temperature of the bearing is easily controlled, and overheating is avoided; and meanwhile, the bearing can be protected from being damaged by moisture and corrosive chemical substances.

The utility model relates to the technical field of gear machining, and discloses burr removing equipment for gear machining, which comprises a base, a conveying belt, a machining chamber, a polishing mechanism and a clamping mechanism, a rotating shaft is connected with a rotating arm and a polishing tool, the tool is allowed to perform necessary rotation and angle adjustment in the polishing process, and the clamping mechanism is connected with the rotating shaft. The supporting rod fixes the rotating arm, stability of the rotating arm in the machining process is guaranteed, the threaded protruding ring is used for fixing the polishing wheel to the connecting ring, and safety and accuracy of the polishing process are guaranteed. According to the burr removing equipment for gear machining, the equipment is provided with an advanced automatic control system which comprises an electric push rod and an accurate clamping mechanism, it is guaranteed that the gears are kept at the correct positions and angles in the whole grinding process, through the accurate control, the working efficiency is improved, it is also guaranteed that the processing quality of all the gears reaches the consistent high standard, and the product quality is improved. Therefore, human errors are reduced, and production consistency is improved.

The present invention discloses a turning electric spindle, including a sleeve body, a stator part, and a rotor part. The two ends of the sleeve body are respectively fixedly connected with a front bearing cover and a rear bearing cover. The front bearing cover and the rear bearing cover are penetrated with a through hole for the rotor part to pass through. The end of the rotor part passing through the front bearing cover is a processing end. The processing end is provided with an assembly head for installing a cutter head. The processing end is provided with a protective cover. The edge of the protective cover extends with a driving ring. The front bearing cover is penetrated with an active groove for driving the axial rotation of the rotor part. A change-of-direction transmission assembly is provided between the annular structure of the driving ring passing through the active groove and the rotor part so that the rotation direction of the protective cover is opposite to that of the rotor part. In the turning electric spindle of the present invention, when the rotor part rotates, the protective cover is linked to rotate in the opposite direction, thereby effectively capturing and guiding the chips generated during the turning process, preventing the chips from flying around, and ensuring the safety of the working environment.

The utility model is applicable to the technical field of glass processing, and provides a rotatable glass chamfering and edging device which comprises a processing table, and a processing box is fixedly mounted at the top of the processing table; the first motor is arranged in the processing box, and an edge grinding head for glass chamfer edge grinding is arranged on an output shaft of the first motor; the collecting hopper is fixed to the machining table, a mounting plate is arranged in the collecting hopper, a rotary containing plate is arranged above the mounting plate, and the containing plate is used for containing glass to be chamfered and edged. According to the rotatable glass chamfering and edging device provided by the scheme, the glass can be uniformly processed by the edging head by driving the glass to rotate, and the problems that a traditional glass chamfering and edging device is complicated in operation, low in efficiency and unstable in processing quality are effectively solved.

The invention relates to a preparation method of an antibacterial and mildew-proof polyester industrial yarn, polyester melt is extruded from a spinneret plate and then is sequentially subjected to cooling, oiling, drafting, heat setting and winding to obtain the polyester industrial yarn, and an antibacterial and mildew-proof finishing agent is added into an oiling agent used for oiling; the preparation method of the antibacterial and mildewproof finishing agent comprises the following steps: firstly, carrying out Michael addition reaction between 4-vinylpyridine and diethanol amine to obtain an intermediate, and then carrying out quaternization reaction on the intermediate to obtain the antibacterial and mildewproof chain extender. Then the antibacterial and mildew-proof chain extender, isocyanate and fluorine-containing polyether react to obtain an antibacterial and mildew-proof modified fluorine-containing polyurethane prepolymer, and finally the antibacterial and mildew-proof modified fluorine-containing polyurethane prepolymer and a curing agent are mixed to prepare the antibacterial and mildew-proof finishing agent. The polyester industrial yarn prepared by the method disclosed by the invention has lasting and stable antibacterial and mildew-proof performance, can effectively prevent adhesion of microorganisms, plays a role in timely shielding and killing mould, prevents a coating main body from being damaged, and shows double antibacterial and mildew-proof effects.

The present invention relates to a halogen-free flame-retardant TPU composite material and a preparation method thereof, and belongs to the technical field of polymer materials. The halogen-free flame-retardant TPU composite material comprises, by weight, 3-10 parts of a modified flame retardant, 2-10 parts of phenoxy cyclophosphazene, 80-100 parts of TPU particles, 90 parts of N,N-dimethylformamide, 0.8-1.2 parts of an ultraviolet absorber, and 2.5-3.5 parts of a lubricant; in the modified flame retardant, ammonium polyphosphate is heated to polyphosphoric acid, which is heat-insulating and flame-retardant, improves the comprehensive performance of the material, and the quaternary ammonium salt structure and the carbamate bond synergistically enhance the flame retardant and heat-resistant performance of the material; in the ultraviolet absorber, cyanuric chloride and benzotriazole intermediates absorb ultraviolet rays, reduce the damage of ultraviolet rays to the material, and enhance aging resistance and toughness; the halogen-free flame-retardant TPU composite material prepared by the present invention not only has good flame retardant and heat-resistant effects, but also has excellent anti-ultraviolet performance.

The invention relates to the technical field of welding machines, and discloses a welding device for mechanical processing, comprising a workbench, and also comprising a welding device, a cleaning device, a fixing device, and a protective device; the welding device comprises a C-shaped plate and a welding machine, the C-shaped plate is fixedly connected to both sides of the workbench, and the welding machine is slidably connected to the surface of the C-shaped plate; the cleaning device comprises a cylinder, a push plate, a brush plate, an arc block, an inclined block, an elastic telescopic rod, a scraper, and a fixed box, the cylinder is fixedly connected to the inner wall of the C-shaped plate, the push plate is fixedly connected to the output end of the cylinder, the brush plate is fixedly connected to the output end of the cylinder, the arc block is fixedly connected to the right side of the brush plate, the fixed box is fixedly connected to the top of the workbench, the scraper is slidably connected to the inner wall of the fixed box, and the elastic telescopic rod is fixedly connected to the top of the scraper; the invention has the characteristics of cleaning and pushing the processing residues on the surface of the workpiece.

The utility model relates to a natural gas station alarm system, which belongs to the technical field of natural gas safety equipment, and comprises a production operation monitoring device, an alarm controller and an audible and visual alarm, the production operation monitoring device is connected with the alarm controller through a network, the alarm controller is connected with the audible and visual alarm, and the audible and visual alarm is connected with the production operation monitoring device. The audible and visual alarm is installed in a working area of the natural gas station, and the production operation monitoring device is used for sending alarm information to the alarm controller. The alarm information comprises fire and gas system alarm information, pipeline protection system alarm information, security and protection system alarm information, emergency stop alarm information, process system alarm information, metering system alarm information, electrical system alarm information, automation system alarm information, communication system alarm information and valve chamber alarm information. The method has the effect of improving the accuracy and timeliness of natural gas station alarm monitoring.

The invention provides antibacterial eye drops containing a herbal compound for pets and a preparation method of the antibacterial eye drops. The antibacterial eye drops for the pets are prepared from the following components in percentage by mass and volume: 1%-5% of a compound of a honeysuckle flower extract and a dandelion extract, 0.2%-1% of hyaluronic acid, 0.01%-0.05% of vitamin B2, 0.001%-0.005% of menthol and the balance of water for injection. The antibacterial eye drops for pets not only have efficient antibacterial and anti-inflammatory effects, but also are mild and non-irritant in formula, free of toxic and side effects, suitable for pets to use for a long time and capable of maintaining eye health of pets for a long time.

The present invention relates to the field of bridge seismic technology, and in particular to a multi-directional buffering, limiting, and energy-absorbing bridge seismic stopper reinforced with a steel spring, comprising a steel corbel and a stopper structure, wherein the steel corbel is fixed above the side wall of the pier, and the stopper structure comprises an upper concave stopper and a lower square stopper; it comprises a steel spring, which is fixed below both sides of the concave stopper; it comprises a buffer device, which comprises a movable steel plate, a compression spring, and a triangular stopper. The present invention limits excessive displacement between the upper main beam and the lower pier in the transverse and longitudinal directions of the bridge, and prevents beam drop damage in the transverse and longitudinal directions; transfers the collision between adjacent beams at the expansion joint to multiple bridge seismic stops, and reduces the expansion impact damage at the expansion joint and the local damage in the collision area between adjacent beams; the stopper has a certain reset ability; the material price is low, the structure is simple, and the construction is convenient.

The utility model provides a test tube fixing device, which belongs to the technical field of test tube supports and comprises a first support frame and a second support frame which are of cuboid structures identical in size and structure. A plurality of first through holes are evenly formed in the face, facing the second supporting frame, of the first supporting frame, a plurality of second through holes are evenly formed in the face, facing the first supporting frame, of the second supporting frame, and the first through holes and the second through holes are each of a semicircular groove-shaped structure. The first through hole is matched with the second through hole, a hollow cylinder can be defined by the first through hole and the second through hole, a fixing mechanism is fixedly connected in the first through hole and the second through hole, and the fixing mechanism is used for clamping a test tube; the problems that an existing test tube rack is large in size and inconvenient to carry can be solved.

The invention relates to the technical field of hoisting machines, in particular to a stable hoisting machine for building materials. A stable hoisting machine for building materials comprises a bottom frame, a stand column, a rotating frame, a connecting frame, a driving motor, a coupler, a rotating shaft and the like, the stand column is connected to the top of the bottom frame, the rotating frame is rotationally connected to the stand column, the connecting frame is connected to the left side of the rotating frame, and the driving motor is installed on the right side of the upper portion of the stand column; a pinion is connected to the coupler, and a rotating shaft is rotationally connected to the right side of the connecting frame. The disc and the centrifugal block rotate in an accelerated mode and generate centrifugal force under the abnormal condition by means of the tooth number difference of the large gear and the small gear. The centrifugal blocks move outwards under the action of centrifugal force and are captured by the clamping columns, the rotating speed of the disc can be rapidly reduced through the mechanism, uncontrolled rotation of the rotating frame can be stopped in time, therefore, operators are protected against injuries, and the use safety of equipment is remarkably improved.

The invention provides a composition containing a marine extract, especially a coralline algae extract and deep-sea fish collagen, and a liposome containing the composition. The composition prepared by the invention is green, healthy, safe, effective and good in lasting effect, and solves the problem of skin aging of people.

The utility model relates to the technical field of house building engineering, and discloses a house building engineering management protection structure which comprises a connecting plate, the left side and the right side of the connecting plate are both connected with protection plates in a sliding mode, the front sides of the protection plates are fixedly connected with a plurality of columns, and elastic assemblies are arranged in the columns. A limiting assembly is slidably connected to the interior of the column body, a sliding rod is slidably connected to the exterior of the column body, an anti-collision plate is fixedly connected to the front side of the sliding rod, first connecting frames are fixedly connected to the left side and the right side of the exterior of the sliding rod, and first fixing rods are fixedly connected to the interiors of the first connecting frames. Limiting rings are fixedly connected to the front side and the rear side of the outer portion of the first fixing rod, and a rotating plate is rotationally connected to the outer portion of the first fixing rod. According to the anti-collision protection device, collision prevention of the protection plate is achieved, the protection plate is effectively prevented from being collided, workers can be protected against injuries caused by accidental collision, and the safety of a construction site is improved.

The utility model relates to the field of living beef cattle egg collection, and discloses a living cattle egg collection fixing frame which comprises a top frame and a bottom frame which are arranged in parallel, the top frame and the bottom frame are both of a hollow structure, a plurality of side pipes are fixedly connected to the two sides of the bottom end of the top frame and the two sides of the top end of the bottom frame respectively, and rotating rods are rotationally installed on the front sides of the top frame and the bottom frame respectively. The top ends and the bottom ends of the sides, close to each other, of the two rotating rods are fixedly connected with transverse rods correspondingly, a plurality of vertical pipes are arranged between the two transverse rods arranged in parallel in the vertical direction in parallel, a plurality of mounting bases are fixedly connected to the top end of one side of the top frame, and one side of each mounting base is rotationally connected with a connecting bent arm through a rotating shaft. Inclined plug pins distributed in the vertical direction are fixedly installed at the positions, close to the centers of the two rotating rods, of the connecting bent arms, plug bushes matched with the inclined plug pins in an inserted mode are fixedly installed on the outer side and the inner side of the top frame correspondingly, and adjusting assemblies are movably installed on the inner sides of the ends, close to each other, of the top frame and the bottom frame. By means of the structure, the cattle can be conveniently fixed in the process of collecting the eggs of the living cattle.

This utility model provides a resin ornament with lighting. The resin ornament with lighting includes: a base with a mounting groove; a light strip fixedly installed in the mounting groove; a built-in ornament, the bottom of which is slidably embedded in the mounting groove; a locking block slidably installed in the mounting groove and in contact with the bottom of the built-in ornament for fixing it in the mounting groove; a rack fixedly installed on the locking block; a movable groove formed on the base and corresponding to the rack; a central shaft rotatably installed in the movable groove; and a drive gear fixedly installed on the central shaft. The resin ornament with lighting provided by this utility model has the advantage of allowing users to change the appearance of the resin ornament, satisfying their personalized needs.

The utility model relates to the field of electrical boxes, in particular to a machine tool electrical circuit installation box convenient for troubleshooting, which comprises a base and a box body fixedly arranged at the upper end of the base, the upper end of the box body is open, and the front surface of the box body is provided with a box door; a bearing plate is fixedly arranged at the end, extending into the box body, of the piston end of the electric push rod, an electrical equipment fixing frame is fixedly arranged on the upper end face of the bearing plate, a top cover is fixedly arranged at the upper end of the electrical equipment fixing frame, and a long-strip-shaped threading hole is formed in the rear side face of the box body. Compared with the prior art, the novel mounting box has the advantages that the electric push rod and the movable bearing plate are designed, so that internal electrical equipment and circuits are easier to overhaul and remove faults, an engineer can drive the bearing plate to move upwards through the electric push rod, the electrical equipment is exposed outside the box body, and maintenance and inspection are facilitated.

The application relates to an attack-defense integrated combat robot, which comprises a robot main body, wheels, differential motors, wings, a head support, a driving motor and a connecting rod mechanism; the wheels are arranged on the bottom of the two sides of the robot main body respectively, and each wheel is matched with a differential motor; the wings are rotationally connected to the top of the two sides of the robot main body respectively; the top of the head support is provided with an arrow-shaped attack piece; the bottom end of the head support is rotationally connected to the top front side of the robot main body; the driving motor is arranged on the top surface of the robot main body; the connecting rod mechanism is connected with the wings and the head support respectively; the driving motor drives the connecting rod mechanism to work; when the driving motor drives the connecting rod mechanism to move to a first state, the wings are in a retracted state, and the arrow-shaped attack piece is in an upright state; when the driving motor drives the connecting rod mechanism to a second state, the wings are rotated to an open state, and the arrow-shaped attack piece is turned to the front. The application can be flexible and changeable, and can change the attack and defense by changing the shape.