31results about How to "Strong anti-collision ability" patented technology

The invention relates to a locomotive and a locomotive collision-proof structure for a rail vehicle. The locomotive collision-proof structure comprises front collision-proof columns and corner columns, and the front collision-proof columns and the corner columns are arranged on a chassis at the front end of a driver's cab and respectively symmetrically distributed along a vehicle advancing direction. The locomotive collision-proof structure further comprises a semicircular collision-proof waist beam and lateral collision-proof columns on a lateral chassis of the driver's cab, and the collision-proof waist beam is formed by connection of a lateral collision-proof waist beam and a front window collision-proof waist beam, the lateral collision-proof waist beam is fixed to tops of the lateral collision-proof columns, and the front window collision-proof waist beam is fixed to tops of the front collision-proof columns and the corner columns. The locomotive collision-proof structure for the rail vehicle is simple in structure and great in collision-proof performance; by synergistic effects of the front collision-proof structure and the lateral collision-proof structure, the locomotive collision-proof structure is capable of effectively dealing with front collision and also has a lateral collision prevention function, so that safety of the vehicle is improved. The probability of direct collision destroy of the front collision-proof structure is low, and high safety is realized.

The invention discloses a composite paperboard and a making method of the composite paperboard. The composite paperboard comprises a paperboard layer, a pearl wool layer and an aluminum foil layer, the aluminum foil layer is bonded and fixed on the front side of the pearl wool layer, the paperboard layer is bonded and fixed on the back side of the pearl wool layer, the making method comprises thefollowing steps: (a) placing the paperboard in position; (b) cutting; (c) blocking pearl wool; (d) applying a glue; (e) thermally pressing in vacuum; and (f) drying. The composite paperboard has the advantages of oxidation resistance, antibacterial action, moisture resistance and strong impact resistance, the storage times of melons and fruits are prolonged when the composite paperboard is used tomake a packaging box for the melons and fruits, the fresh preservation property is strong, the melons and fruits are prevented from being deformed by the external extrusion, the transportation safetyof the melons and fruits is guaranteed, the making method is easy to control, less waste is produced, the time is short, the cost is low, the labor intensity of a worker is low, and the product quality is high.

The invention relates to the technical field of glass, in particular to bullet-proof glass. The bullet-proof glass comprises inner layer glass, one to three layers of middle layer glass and outer layer glass, wherein a polycarbonate plate is arranged between every two layers of glass partially or totally; each layer of glass and the polycarbonate plate are bonded by a PVB (polyvinyl butyral) glue sheet layer or a polyurethane glue layer; the thickness of the inner layer glass is 5 to 7mm; the thickness of the middle layer glass is 3 to 5mm; the thickness of the outer layer glass is 4 to 6mm; the thickness of the polycarbonate plate is 2 to 5mm; the thickness of the PVB glue sheet layer or polyurethane glue layer is 0.5 to 2mm. The preparation is easy; the bullet-proof capability is high; after each layer of glass uses wired glass, high anti-impact capability can be realized, so that the bullet-proof capability of the glass is higher.

The invention provides an XPE environment-friendly foam material for an anti-static / flame-retardant vehicle and a preparation method of the XPE environment-friendly foam material. The XPE environment-friendly foam material is mainly prepared from, by weight, 60-80 parts of PE resin, 4-8 parts of anti-static agent, 20-30 parts of self-made composite flame retardant, 5-20 parts of foaming agent, 2-5 parts of cross-linking agent and 3-5 parts of blowing promoter. The material is prepared through extrusion of an XPE master slice in a single-screw extruder, calendaring, continuous normal-pressure foaming in a foaming furnace, cooling and shaping, and trimming and coiling. Anti-static and flame-retardant performance is integrated in the XPE foam material, the formulation is simple and scientific, the material has the anti-static performance and the flame-retardant performance, chemical and physical performance is stable, electrostatic induction and inflammability are completely eliminated, and the foam material is safe, free of toxins and smells and environmentally friendly, and saves energy.

The invention relates to a high-strength corrugated board box suitable for transportation. The high-strength corrugated board box comprises outer bottom covers, inner bottom covers, side boards, transverse pressing marks, inner rocking covers, opening grooves, vertical pressing marks, outer rocking covers, end boards, a connector paper board, U-shaped nails, double-layer corrugated boards, transparent flame retardant PC thin films, inner-layer paper boards, middle-layer paper boards, outer-layer paper boards, pearl wool, a mouldproof layer, a waterproof layer, inner-layer corrugated core paper, outer-layer corrugated core paper, first outer-layer corrugated core paper body, second outer-layer corrugated core paper body, an elastic material, lining paper boards, butterfly paper pads, limiting paper boards, clamping grooves, an anti-abrasion coating thin film layer, a coating inner paper mixing layer and an inner paper layer. The high-strength corrugated board box suitable for transportation has the advantages that an outer protection box body adopts the double-layer corrugated boards, and the protection strength is high; a box body size adjusting mechanism is internally arranged, so that the suitability is high, and product transporting is facilitated; and the anti-abrasion coating thin film layer is arranged on the lining paper boards, and thus friction and abrasion can be effectively reduced.

The invention specifically relates to a rigid multiway displacement anticollision guardrail which comprises upright columns which are arranged at the two sides of a bridge expansion joint, wherein a plurality of telescopic horizontal rods which are arranged along the bridge direction are uniformly arranged between the upright columns at the two sides along the vertical direction at intervals, so as to be suitable for longitudinal displacement between bridge bodies, the two ends of each telescopic horizontal rod are respectively articulated to the upright columns at the two sides by adopting a pin shaft and a hoop sleeve system so as to be suitable for transverse displacement between the bridge bodies, and in addition, every two telescopic horizontal rods are welded through a vertical connecting rod to form a rigid frame-type integrated anticollision structure. The rigid multiway displacement anticollision guardrail has the advantages of strong guardrail anticollision capability, strong deformation capability, convenience in maintenance and change and good landscape efficiency.

The invention discloses a collision-proof fire hydrant, including a mounting seat, a hydrant body, a water outlet and a turning handle, wherein the hydrant body is fixedly connected at the top of themounting seat, An upper end surface of the middle part of the plug body is provide with a water outlet, a swivel handle is arrange on the top of the hydrant body, An inn protection sleeve is arrangedon the outer surface of the hydrant body, a damping and shock absorbing mechanism is welded on the inner side surface of the inner protection sleeve, the outer surface of the inner protection sleeve is welded to one end of the spring shock absorbing mechanism, the other end of the spring damping mechanism is welded to the inner side surface of the guard ring, a damping and damping mechanism is composed of a fixed column, the first sliding arm, the second sliding arm and the torque spring are composed of a first fixing seat, a sliding sleeve, a second fixing seat, an insertion rod, a first spring and a second spring. The invention has the characteristics of triple unloading effect, greatly improving the anti-collision ability, prolonging the service life and the like through a series of components.

The invention discloses a pet sweat pant. The pet sweat pant comprises a water absorption body and a main body part which has at least two-layer structures and is clamped and maintained by the water absorption body; the position, located at the hip of a pet, of the main body part is provided with a tail penetrating part which is used for allowing the tail of the pet to penetrate through; the tail penetrating part comprises a mounting hole which is formed in the main body part, a pearl wool layer is arranged in the mounting hole, multiple cutting lines are arranged on the pearl wool layer, and the multiple cutting lines begin from the middle of the plate and stretch to the edge of the plate in a divergence shape. According to the technical scheme, the pet sweat pant is applicable to pet tails of different thickness, on one hand, the tail can be tightly clamped after penetrating through a cutting notch and cannot be easily loosened; on the other hand, the pet sweat pant is soft and does not clamp and hurt the tail of the pet, and thus the pet sweat pant is comfortable for the pet to wear.

The invention discloses an automobile anti-collision beam with a buffering effect. The automobile anti-collision beam comprises a beam body, spring seats, a transverse plate, first shock absorber springs, connecting heads, spiral springs, fastening bolts, screws, penetrating holes, fixing rods, telescopic columns, mounting plates, baffles, second shock absorber springs, adjusting bolts, clamping buckles, bolt rods, brackets, limiting plates and balls. The automobile anti-collision beam with the buffering effect has the beneficial effects that one side of the beam body is connected with the transverse plate, and one side of the transverse plate is connected with the brackets, so that the transverse plate can bear part of impact force when an automobile is impacted in working; the second shock absorber springs in the brackets and the first shock absorber springs between the transverse plate and the beam body shrink when being subjected to pressure and play the buffering effect, damage caused by impact is reduced, the beam body is protected from being damaged, and the automobile is further protected to make damage be reduced; and the balls at one ends of the brackets can make the beambody be in rolling friction with an impact object during impacting, the balls rotate during side impacting, and the beam body is made to slide and move away from one side of the impact object.

The invention relates to a middle pier anti-collision system and a construction method. Different anti-collision measures are respectively taken for different types of pier column structures, for a rectangular pier, an isolated flexible anti-collision system is arranged for protection by adopting a complete isolation concept; for a cylindrical pier, an adhesive flexible anti-collision system is adopted; for a large-scale pier which cannot be equipped with a flexible anti-collision facility due to the space constraint, a reinforced guardrail anti-collision system is adopted; and for a pier column group which is dense and each pier column cannot be protected individually, a middle pier prefabricated and assembled integral wall-type anti-collision island is adopted. The four anti-collision systems are designed according to the characteristics of pier columns. The anti-collision structure is small in size, strong in anti-collision ability, convenient to assemble and disassemble, and can basically achieve the purpose of protecting the middle piers of expressway overpasses. The invention relates to four anti-collision system structures and also relates to the relevant construction methods, and has good economic and technical benefits.

The invention discloses an internal combustion engine and a gardening tool with the same. The small internal combustion engine comprises a shell (200) and an internal combustion engine body arranged in the shell; the internal combustion engine body comprises a cylinder (81), a crankcase, a piston, a crankshaft, and an oil pan (30), wherein the piston is arranged in the cylinder, the crankshaft isarranged in the crankcase and drives the piston, and the oil pan is arranged at the bottom of the crank case; and the oil pan (30) is provided with an oil pan oil inlet, the shell (200) is provided with a shell oil inlet, the internal combustion engine is characterized in that the internal combustion engine body further comprises a hose (20), wherein the hose (20) is connected with the oil pan oilinlet and the shell oil inlet so as to form a fluid channel, and the fluid channel is used for lubricating oil to flow from the shell oil inlet to the oil pan (30). Compared with the prior art, the hose can be arranged in an assembly space according to needs, so that the shell oil inlet does not need to be arranged near the oil pan in a limited manner, and the difficulty of structural layout is reduced.

The invention belongs to the field of spraying, and specifically relates to a high imitation ceramic appearance effect spraying method. The high imitation ceramic appearance effect spraying method comprises the steps of (1) pretreatment, namely, grinding and polishing a material and then carrying out T treatment; (2) ceramic primer spraying, namely, spraying a ceramic primer for the first time, and then spraying the ceramic primer for the second time; (3) intermediate paint spraying, namely, spraying color paint; (4) UV primer spraying; (5) NCVM (Non-conductive vacuum metallization); (6) UV intermediate paint spraying; and (7) UV finishing paint spraying. Products sprayed by adopting the process have the advantages of high surface hardness, strong scratch resistance, strong collision resistance, simple production process, low cost and the like.

The invention provides a corrugated paperboard and a corrugated carton production process. The corrugated paperboard comprises an outer-layer paperboard and an inner-layer paperboard, wherein a firstwaterproof plate layer and a refractory plate layer are sequentially arranged on the upper surface of the outer-layer paperboard from inside to outside, a second waterproof plate layer is arranged onthe lower surface of the inner-layer paperboard, a partition plate is arranged between the outer-layer paperboard and the inner-layer paperboard, a first corrugated paper layer is bonded between the outer-layer paperboard and the partition plate through a flame-retardant glue, wave-shaped corrugated paper, a first hollow corrugated paper core and a second hollow corrugated paper core are symmetrically arranged in the first corrugated paper layer, a second corrugated paper layer is bonded between the inner-layer paperboard and the partition plate through a flame-retardant glue, corrugated paper, a third hollow corrugated paper core and a fourth hollow corrugated paper core are symmetrically arranged in the second corrugated paper layer, each hollow corrugated paper core is filled with EPE pearl wool, and the outer surfaces of each paper core are respectively coated with a smoke eliminating layer. According to the invention, the problems of poor compressive strength, poor damp-proof andwaterproof performance and poor flame-retardant and fireproof performance of the corrugated carton in the background art are solved.

The invention discloses an infrared monitoring device mounting shell. The infrared monitoring device mounting shell comprises a monitoring shell body; the monitoring shell body is provided with a dustproof cover near the top of the monitoring shell body; the dustproof cover is connected onto the monitoring shell body in a sealed manner; two sides of the dustproof cover are respectively provided with two protective plates; the protective plates are fixed to the dustproof cover and the dustproof cover; the front side surface of the monitoring shell body is provided with a liquid crystal display panel; the liquid crystal display panel is arranged on the monitoring shell body in an embedded manner; the inner side surface of the monitoring shell body is provided with an infrared scanning device corresponding to the liquid crystal display panel; and the front side surface of the monitoring shell body is also provided with a switch for controlling the working of the infrared scanning device. The infrared mounting device mounting shell of the invention has strong anti-collision capability and is convenient to disassemble and maintain; and the infrared mounting device mounting shell has a good dustproof effect, and therefore, dust accumulation can be prevented, and the problem of deterioration of the performance of an internal structure caused by dust accumulation can be solved; and an infrared scanning function can be better utilized to aid better monitoring, overall practicability can be increased, and the service life of the shell can be greatly prolonged.

The invention discloses a fabricated foam concrete filled thin pipe self-buckling system bridge pier anti-collision device; when the device is collided, firstly, a corrugated plate disperses stress, the corrugated plate and regenerated rubber deform to dissipate energy, then a dumbbell-shaped self-buckling system can effectively dissipate energy through mutual friction and plastic deformation, and the impact effect of axle impact on a bridge pier and a vehicle is relieved. After foam concrete is injected into an aluminum pipe, deformation of the aluminum pipe can be restrained, and the impact resistance of a protection device is effectively improved. The dumbbell-shaped aluminum pipe self-buckling system and foam concrete cooperate for protection, rigidity and softness are combined, the bridge pier is protected against damage after being impacted, and the safety of the vehicle and personnel on the vehicle is protected. The device has the advantages of being low in strength, high in energy consumption, convenient to maintain and replace, small in occupied area, environmentally friendly and the like, and the anti-collision requirement of the pier can be met.

The invention discloses a smog purifier. The smog purifier comprises a body and a universal wheels, wherein the top end of the body is provided with a waste gas inlet, the waste gas inlet is providedwith a negative oxygen ion detector and a smog detector, the waste gas inlet is connected with a universal gas absorption pipe, an inlet of the universal gas absorption pipe is provided with an air volume adjuster, the air volume adjuster is connected with a gas absorption cover, the bottom of the body is provided with an air outlet, the front surface of the body is provided with a touch panel, analarming lamp and an alarming device are arranged above the touch panel, a purifying chamber and a control chamber are arranged inside the body, a treatment chip is connected with a wireless signal transceiver, the inner periphery of the purifying chamber is provided with smoke absorption cotton, a dust collection plate, an HEPA filtering plate, an active carbon filtering plate, a silver ion filtering screen and a PTFE coating filtering material are successively arranged in the purifying chamber, and pearl wool is arranged in the body. The smog purifier is simple in structure; and by adoptingmultiple layers of filtering plates, a better filtering effect can be achieved, the ash is easy to clean, the proliferation reproductionof bacteria can be inhibited, and the bacteria attached onto the filtering plates can be effectively killed.

The invention provides a shockproof mechanism of a coal mining robot. An encircling upright column and a back support structure both composed of four shockproof sleeves are arranged on a base of the coal mining robot, the encircling upright column and the back support are not easy to break off by the aid of the multiple shockproof sleeves when colliding with broken stones, and the shockproof sleeves are reinforced on the upper, lower, left and right sides of the base, so that shock stone falling stress is concentrated in the middles of the shockproof sleeves, namely the position of the base, fault and rollover of the robot is avoided, shockproof capability of the robot is effectively strengthened, and use efficiency is improved. In addition, rotating drive wheels are arranged between two sides of each four adjacent shockproof sleeves, so that blocking and halt are not easy to occur during operation when the rotating drive wheels encounter with mine walls and barriers, and continuous working of the robot is guaranteed.

The invention discloses an expandable polyethylene packing box which comprises a box body. The characteristic of the packing box is that the side surface, the top surface and the bottom surface inside the box body are coated with expandable polyethylene layers. The thickness of the expandable polyethylene layers is between 5- 15cm. Expandable polyethylene layers are arranged inside the box body, which can effectively solve the problems that the conventional packing boxes are easy to deform, the shock-proof effect is poor, things in the boxes are liable to pollution, etc.

The invention relates to a magnetic mattress, which comprises a mattress body, wherein the mattress body comprises a first bamboo charcoal floss layer, a first bamboo charcoal cotton layer, a first non-woven fabric layer, a far-infrared fibrous layer, a nano fragrance layer, a polyurethane layer, a geomagnetic layer, a foamed pearl cotton layer, a second non-woven fabric layer, a second bamboo charcoal cotton layer and a second bamboo charcoal floss layer in sequence from top to bottom. The magnetic mattress is of a multi-layer structure; the air heat preservation can be increased; the loss ofshell temperature is blocked, and the blood circulation of a human body can be effectively improved.

The invention discloses a vaporization furnace. The furnace comprises a furnace body, wherein an inlet is formed in the furnace body; a furnace lid is arranged on the inlet, and is provided with a safety relief valve and a temperature detector, and the temperature detector is connected with a temperature controller; a bursting diaphragm is arranged in the furnace lid; an electric control cabinet is arranged in the center of the furnace body, and is connected with a relay; an air inlet is formed in the top of one side of the furnace body; an air inlet pipeline is arranged at the air inlet; a filter and a float valve are arranged on the air inlet pipeline; a Roots blower is connected with the air inlet pipeline; a refractory coating, pearl wool and an insulating plate are arranged in the furnace body; heat pipes are arranged at the top and two sides in the furnace body, and are connected with a drying layer; a thermal decomposition layer, a reduction layer, an oxidation layer and a dustchamber are sequentially arranged under the drying layer; the dust chamber is connected with an ash outlet; the ash outlet is connected with a slag tank; and a water inlet is formed in the oxidation layer. According to the vaporization furnace, a low water level protection device can adopt an intervening measure to solve the failure of low water level, and the refrigeration effect of refrigerationequipment is prevented from being influenced.

The invention provides a shockproof mechanism of a coal mining robot. An encircling upright column and a back support structure both composed of four shockproof sleeves are arranged on a base of the coal mining robot, the encircling upright column and the back support are not easy to break off by the aid of the multiple shockproof sleeves when colliding with broken stones, and the shockproof sleeves are reinforced on the upper, lower, left and right sides of the base, so that shock stone falling stress is concentrated in the middles of the shockproof sleeves, namely the position of the base, fault and rollover of the robot is avoided, shockproof capability of the robot is effectively strengthened, and use efficiency is improved. In addition, rotating drive wheels are arranged between two sides of each four adjacent shockproof sleeves, so that blocking and halt are not easy to occur during operation when the rotating drive wheels encounter with mine walls and barriers, and continuous working of the robot is guaranteed.

The invention relates to the technical field of guardrails, and in particular relates to an expressway guardrail. The expressway guardrail comprises columns and a breast board, wherein the breast board is arranged between the columns; and reinforcing blocks are arranged in the middle of the columns. The structure of the expressway guardrail provided by the invention conforms to the requirement of high strength of the expressway guardrail; the guardrail has strong capability in absorbing collision energy, namely high anti-collision capability, and thus reduces damage of vehicles and injuries and deaths of passengers; the breast board and the columns are in concave-convex matching and welded connection, and bolt connection or welding is not required; and thus the expressway guardrail is convenient to assemble and disassemble and favorable for repairing and maintaining.

The invention discloses a stone washing machine. The stone washing machine comprises a machine frame. The bottom of the machine frame is provided with trundles. The machine frame is provided with a machine body. The inner wall of the machine body is covered with a moisture-proof agent. The moisture-proof agent is provided with pearl wool. The pearl wool is provided with a water-stop sheet. The machine body is divided into a washing chamber and a drying chamber. The upper end and the lower end of the washing chamber are provided with water inlet pipes correspondingly. The two sides of the lowerend of the washing chamber are provided with water collecting tanks. The water collecting tanks are connected with water outlet pipes. The water outlet pipes are arranged at the bottom of the left side of the machine body. The water inlet pipes are provided with a plurality of circular holes. Ultrasonic nozzles are connected with the circular holes through flanges. The washing chamber is internally provided with a rotating shaft. The rotating shaft is rotated through a driving motor. The rotating shaft is provided with a spiral blade. The drying chamber is internally provided with a conveyorbelt. A transmission motor is arranged under the conveyor belt. A heat conduction pipe is arranged around the drying chamber. The heat conduction pipe is connected with a temperature detector. The temperature detector is connected with a temperature controller. The stone washing machine is simple in structure and can quickly dry stones after the stones are washed, and the subsequent burdening progress is not affected.

The invention discloses an anti-collision device utilizing water media to consume energy, the anti-collision device mainly comprises a force transmission assembly and a water sump, and in addition, a light permeable tank and other related auxiliary energy consumption measures are arranged at the bottom of the force transmission assembly. A head-on collision panel is arranged on the outer side of the force transmission assembly, and the force transmission assembly comprises a light energy consumption material, an energy consumption framework and the like for cooperative energy consumption. The water sump is made of an ultrahigh-elasticity material and is provided with a drain hole with a damping effect and a water inlet hole. Compared with a traditional anti-collision device, the anti-collision device has the biggest characteristics that water media are used for energy consumption, self-resetting can be achieved after collision, the anti-collision device does not need to be maintained through manual measures, the energy consumption mode is environmentally friendly, the water media participating in energy consumption can be continuously obtained, the energy consumption capacity is high, and the safety of a protection object and an impacting object can be guaranteed; the problem that a traditional anti-collision device needs a large amount of manpower and material resources for maintenance and replacement after collision is solved.

The invention discloses a composite paperboard and a making method of the composite paperboard. The composite paperboard comprises a paperboard layer, a pearl wool layer and an aluminum foil layer, the aluminum foil layer is bonded and fixed on the front side of the pearl wool layer, the paperboard layer is bonded and fixed on the back side of the pearl wool layer, the making method comprises thefollowing steps: (a) placing the paperboard in position; (b) cutting; (c) blocking pearl wool; (d) applying a glue; (e) thermally pressing in vacuum; and (f) drying. The composite paperboard has the advantages of oxidation resistance, antibacterial action, moisture resistance and strong impact resistance, the storage times of melons and fruits are prolonged when the composite paperboard is used tomake a packaging box for the melons and fruits, the fresh preservation property is strong, the melons and fruits are prevented from being deformed by the external extrusion, the transportation safetyof the melons and fruits is guaranteed, the making method is easy to control, less waste is produced, the time is short, the cost is low, the labor intensity of a worker is low, and the product quality is high.

This invention relates to an intelligent charge and an early warning system and a method for thruways composed of a super RF card, a read-write device, electronic road signs and on-line servers, in which, cars with the super RF cards can exchange information with the read-write device to pass through non-stopping charge ports, when cars without the cards enter the road and fetch the cards, watch persons will write the car information into the super RF card A by the computer or a read-write device, when cars with the RF cards pass through the electronic road signs, they will receive information from the road signs and A records the route information of the car and reverts it to the electronic road sign C , which sends the information collected by a public net to the on-line server wirelessly, so that the road management department realizes scientific dispatch and the super RF card receives the warning information of the electronic cursor or RF card of the cars ahead to warn for prompt to realize scientific charge and safety early warning of roads.

The invention discloses an automatic forming method for a pearl wool heat insulation cup sleeve. The automatic forming method comprises the following steps that 1, coiled pearl wool is automatically fed; 2, the pearl wool cut into the fan shape is pushed to a rotating assembly; 3, the cut pearl wool is moved to the front of a processing assembly; 4, the cut pearl wool is pushed to the position below a heating block; 5, the pearl wool at one end of a pearl wool composite material is ironed off; 6, the pearl wool is pushed to the position below a gluing block; 7, the ironed end of the pearl wool is coated with glue; 8, a conical cylinder is formed from the pearl wool; 9, the bonding positions of the two ends of the pearl wool are pressed to form a conical cylindrical cup sleeve; and 10, the pearl wool heat insulation cup sleeve is automatically discharged. The method is ingenious in design, smooth in procedure connection and high in automation degree, one person can take charge of one production line, the productivity is multiple times that of manual forming of the cup sleeves, the productivity is greatly improved, and remarkable economic value is achieved.

The invention discloses a novel antenna-radome integrated structure and design method, and relates to the field of low RCS stealth technology. The invention includes a metamaterial absorber and a feed structure. The metamaterial absorber is made of periodic metal-dielectric stacks; the feeding structure is composed of a monopole antenna; the metamaterial absorber is placed on one side of the monopole antenna. The invention is made by printed circuit board technology, has low cost, simple structure, small volume, low profile, and has the advantages of wide bandwidth, high gain, etc., and the out-of-band RCS reduction effect is obvious, and it still has good RCS in a large incident angle range Reduction effect, strong anti-collision and anti-collision ability. By adjusting the size of the structural unit, the antenna's working frequency band, bandwidth, gain and other radiation characteristics, RCS reduction performance and mechanical structure characteristics can be changed, with a greater degree of design freedom.