1135results about How to "Realize the buffering effect" patented technology

The invention relates to the technical field of a bionic robot and particularly provides an elastically driven walking leg in hybrid connection for a walking robot. The elastically driven walking leg structurally comprises three spherical hinges fixed on a leg base, wherein one of the spherical hinges is connected to a thigh part; the other two spherical hinges are connected to two elastic drivers, then are connected to a Hooke hinge and are connected to the thigh part through a middle linkage base; a Hooke hinge connecting plate is arranged between the Hooke hinge and the middle linkage base; a leg part is coupled with the thigh part through leg and thigh part connecting shafts; the tail end of the leg part is fixed together with a toe base and then is connected to a spherical foot; another elastic driver is arranged between the leg part and the thigh part; the upper end of the elastic driver is coupled with the thigh part connecting shaft through a connecting plate; and the lower end of the elastic driver is coupled with the leg part connecting shaft through a circular base. The invention designs a walking leg for the walking robot, wherein the walking leg has the advantages that the load capacity is great, the walking capacity is strong, the damping buffering capacity is excellent, the research value is high and the application prospect is wide.

The embodiment of the invention discloses a flexible display device, a manufacturing method thereof and an electronic device. The flexible display device comprises a flexible display panel and at least one layer of buffer membrane, wherein the flexible display panel is provided with a first side surface for displaying images and a second side surface opposite to the first side surface; the buffer membrane is at least formed on the second side surface of the flexible display panel and is composed of a second buffer area and a first buffer area surrounding the second buffer area, and the inside of the buffer membrane of the first buffer area is provided with a plurality of hollow structures; when the flexible display panel is in a horizontal state, in a first direction perpendicular to the flexible display panel, the area of the cross section of the hollow structures in a second direction parallel to the flexible display panel increases to a preset area and then gradually decreases. According to the flexible display device, the buffer membrane can avoid collapse or bending of the flexible display panel, limit the bending curvature of the flexible display panel, improve the shock resistance and the shock absorbing capacity of the flexible display panel and achieves a moisture-proof function.

The invention relates to a parallel vibration isolation buffer based on the magnetic rheomorphism technology, which is composed of a magnetic rheologic elastic body buffer and a magnetic rheologic liquid buffer, which are connected in parallel. The magnetic rheologic elastic body buffer is composed of a connecting rod and a magnetic rheologic elastic body shearing ring; the magnetic rheologic elastic body shearing ring is composed of a magnetic rheologic elastic body, a coil winding and a field core; each of the right side and the left side is provided with a group of coil winding and a group of field core; the field core is composed of two hemicycle iron cores and the magnetic rheologic elastic body is respectively held between the two hemicycle iron cores of each set to form the magnetic rheologic elastic body shearing ring, the two sets of the magnetic rheologic elastic body shearing rings are connected organically by the connecting rod; the magnetic rheologic liquid buffer is arranged between the two sets of magnetic rheologic elastic body shearing rings and is fixed between the upper connecting rod and the lower connecting rod, and is connected with the two sets of magnetic rheologic elastic body shearing rings in parallel structurally. The device can control the structural rigidity and the damp, reduce the impact and vibration on the system from the outside and has the advantages of good controllability, wide dynamic range, high response speed, low power consumption and so on; furthermore the device has strong environmental conformability.

The invention belongs to the field of electrofluid jet printing spray-head correlation technique, and discloses an airflow auxiliary electric jet printing spray-head integrated with a grounding electrode. The airflow auxiliary electric jet printing spray-head comprises a liquid inlet cylinder, a gas hood, a metal needle head, an electric lead, an electrode cover and an annular electrode. The liquid inlet cylinder is connected to the gas hood and is partially held in the gas hood; two ends of the gas hood connected with the liquid inlet cylinder and the electrode cover; one end of the metal needle head and the liquid inlet cylinder form threaded connection, and the other end of the metal needle head penetrates through the gas hood so as to stretch into the electrode cover; one end of the electric lead is connected to a high voltage power supply, and the other end of the electric lead penetrates through the liquid inlet cylinder so as to be connected to the metal needle head; the annular electrode is embedded into the electrode cover; and the grounding electrode is integrated into the airflow auxiliary electric jet printing spray-head through grounding. The airflow auxiliary electric jet printing spray-head provided by the invention is provided with the grounding electrode through arranging the annular electrode, so that a collecting substrate has no need to be grounded, and the application range and the flexibility are improved.

The invention discloses a surveying and mapping instrument fixing device for physics. The surveying and mapping instrument fixing device comprises a triangular supporting leg, the bottom of the triangular supporting leg is rotatably connected with a supporting sleeve groove through a rotating shaft, a lifting device is fixedly connected inside the triangular supporting leg, a first supporting rodis fixedly connected at the top end of a lifting supporting block, a damping fixing foot is fixedly connected at the bottom end of the triangular supporting leg, a supporting plate is fixedly connected at the bottom end of the first supporting rod, a second supporting rod is fixedly connected at the top end of the supporting plate, a lifting rod is fixedly connected at the top end of a supportingslider, a lifting rod sliding groove is fixedly connected at the top end of the second supporting rod, the top end of a lifting rod is rotatably connected with a rotating shaft, a supporting turntableis fixedly connected at the top end of the rotating shaft, and a fixing clamping device is fixedly connected at the top end of the supporting turntable. The invention relates to the technical field of physics. By the surveying and mapping instrument fixing device, using height of a surveying and mapping instrument can be adjusted accurately, damping and buffering are realized when the surveying and mapping instrument works, and working measurement errors are reduced.

The invention relates to a bionic ankle joint. The ankle joint uses joint bearing. The bearing inner ring is connected with the calf and the outer ring is connected with the foot. The outer ring revolves the inner ring. The foot of the robot is driven to move relative to the calf. The uplifting and unbending motion of ankle joint and the rotary motion along the axis line of the calf are respectively controlled by a pair of springs. One end of the spring is connected with the calf and the other end is connected with the foot. When the robot dumps towards the sideways, the equilibrium position is recovered under the function of spring. The invention can realize flexible motion of ankle joint with homocentric triaxiality with compact structure. The energy loss can be reduced using the mode of combining the pneumatic muscle active control and spring passive control and the effect of buffering can be obtained.

A landing mechanism-based legged mechanical cushioning device comprises an upper end cover, a direct current lead screw motor, a disc spring, a damping baffle, a force sensor, an expansion ring, a piston push rod, a conical ring push rod, a cushioning cavity housing, a motor lead screw guide ring, a foam metal filling block filler, a flexible porous material, a bottom end cover and a pressure spring; and has two-stage cushioning energy absorption structures. The first stage is a mechanical cushioning structure designed on the basis of thin-wall metal pipe plastic deformation cushioning, and foam metal and flexible porous material plastic deformation energy absorption; and the second stage is an autonomous cushioning energy absorption structure designed on the basis of servo motor feedback control, foam metal plastic deformation energy absorption and elastic element energy storage and release. The inventive cushioning device is a composite cushioning device with simple structure, obvious energy absorption effects and stable performance.

The invention discloses a buffer hydraulic cylinder and belongs to the technical field of hydraulic cylinder structure. Two groups of stepped through holes are machined in the piston face of a piston, the first group of stepped through holes are steel ball installing valve holes, and steel balls are limited in the stepped through holes through retainer rings and can axially move in the stepped through holes. The other group of stepped through holes are variable-diameter holes. A plunger rod is matched with the front end of a cylinder body, the end located in the cylinder body, of the plunger rod, is sleeved with the piston, the outer circle circumference of the piston is matched with the inner wall of the cylinder body, the front end face of the piston is sleeved with a gland, the cylinder body is closed by the cylinder bottom, the piston divides the inner cavity of the cylinder body into two independent cavities including a rod cavity and a rodless cavity, and the rodless cavity is communicated with a column-shaped cavity of the plunger rod. An air piston is installed in the column-shaped cavity of the plunger rod. Sealing parts are installed on the matching faces between the plunger rod and the piston and the cylinder body. The oil input and oil output of the hydraulic cylinder are controlled without dependence on a hydraulic pump station, but a good buffer role can be played.

The invention relates to a landing cushion gasbag, which comprises a frame type gasbag, wherein the frame type gasbag is communicated with gas resource in a landing cushion system (1), and the upper end of the frame type gasbag is communicated with the bottom of an unmanned aerial vehicle. The landing cushion gasbag has the advantages that: the frame type gasbag is communicated with the gas resource in the landing cushion system, and the gas resources such as a mini-type high-pressure gas bottle or a gas generating device, and the like, are used for aerating the frame type gasbag when the unmanned aerial vehicle is landed with a parachute, so that the gasbag can provide cushion to the unmanned aerial vehicle when loading after the frame type gasbag is aerated. As the cubage of the frame type gasbag is far less than the existing gasbag, the package of the gasbag is less, the weight is light, and the gasbag can be aerated without atmosphere source.

The invention discloses a package bag secondary automatic packaging system, which comprises a secondary packaging automatic bag arranging mechanism, a secondary packing machine bag collecting cabin, a secondary packaging machine bag taking and bag opening mechanism, a secondary packaging machine bag storing mechanism, a secondary packaging machine bag supporting mechanism, a secondary packaging machine bag opening shaping and hot sealing mechanism and a secondary packaging machine bag dragging and bag holding mechanism. The package bag secondary automatic packaging system has the advantages that the automatic bag arranging, bag taking and bag conveying positions are accurate, the packaging stability is greatly improved, and the whole packaging system adopts a plurality of sensors, so the work efficiency is greatly improved, the work intensity of workers is reduced, and in addition, the installation performance is greatly enhanced.

The invention discloses a middle hole pressure storage static leakage-free oil sprayer, comprising a high speed solenoid valve, a locking screw sleeve, a tapered surface ball valve type switch valve, a control plunger and barrel assembly, an oil sprayer spring, a spring seat, an opening check ring, an oil sprayer body, an oil sprayer assembly and an oil nozzle locking cap; the tapered surface ball valve type switch valve is arranged in a concave cavity in the upper end of the oil sprayer body; the upper end of the oil sprayer body is connected with the high speed solenoid valve by a locking nut; the lower end of the oil sprayer body is connected with the oil nozzle assembly by the oil nozzle locking cap; the control pole plunger and barrel assembly is arranged in a central hole formed along the axis of the oil sprayer body; the central hole of the oil sprayer body and the control pole plunger and barrel assembly form a middle hole pressure storage cavity. The oil sprayer is simple in structure, low in machining cost and convenient to mount, so the production efficiency and product percent of pass are improved.

The invention discloses a rapid cooling device for a computer mainframe box. The rapid cooling device comprises a base, two vertical damping rods are fixedly mounted at the top of the base, horizontal damping plates are slidably mounted on the damping rods and sleeve the damping rods, springs are mounted on the damping rods in a sleeving manner, the tops and the bottoms of the springs are fixedly connected with the corresponding damping plates and the base, damping blocks are fixedly mounted at the top of the base, vertical fixed rods are fixedly mounted at the tops of the damping blocks, vertical sliding rods are slidably mounted in the middles of the tops of the fixed rods, the tops of the sliding rods are fixedly connected with the damping plates, and damping cavities are formed in the fixed rods. By means of double damping, the shock resistance effect of a device body is greatly improved, transportation and use of the computer mainframe box are facilitated, a computer mainframe can be cooled within a wide range by one fan, cooling uniformity is ensured, and the use performance of a computer is improved.

The invention discloses a vibration damper and a downhole drill comprising the same. The vibration damper comprises a first joint and a second joint, and the first joint and the second joint are respectively provided with a central through hole. The vibration damper is characterized in that the second joint comprises a piston body; the piston body and the first joint can be longitudinally and glidingly matched; a first cavity is formed between one end of the piston body, which faces the first joint, and the first cavity is communicated with the central through hole of the first joint. When the vibration damper is utilized, the second joint compresses high-pressure gas in the first cavity to enable the volume of the first cavity to generate changes, and the high-pressure gas in the first cavity absorbs vibration energy to achieve the goals of buffering and vibration damping; due to the fact that the pressure change of the high-pressure gas is smaller, the change of an acting force transferred to the first joint through the first cavity is smaller, and further, the peak value of an impact force transferred to the first joint by the second joint can be better limited, and the impact vibration is reduced so that the vibration damper has more superior vibration damping effect.

The invention discloses a numberical control hobbing machine with zero transmission, which comprises a machine body, a main shaft system, a hobbing cutter feeding and angle adjusting system and a control system; the main shaft system comprises a functional part of a hobbing cutter main shaft and a functional part of work-piece main shaft part; the functional part of the hobbing cutter main shaft is an integration of the rotator of the servo motor I and the hobbing cutter main shaft, and the functional part of the work-piece main shaft is an integration of the rotator of the servo motor II and the work-piece main shaft. The numberical control hobbing machine of the invention can remove the manufacturing errors of transmission component of generating motion and the influence on gear process caused by space and assembly error, is able to greatly improve process accuracy and process speed of machine tool. The numberical control hobbing machine of the invention has simple structure, is able to improve overall rigidity of machine tool, solves the wearing problem caused by mechanical transmission chain, improves the retentivity of precision, causes the hobbing speed to be higher than the numberical control hobbing machine with traditional structure, shortens milling time as well as based on which, the hobbing machine is provided with the machine tool conditions required by dry type hobbing through adopting a series of matching technical measures.

The invention discloses a multifunctional submerging and floating device with an unmanned aerial vehicle taking-off and landing platform. The multifunctional submerging and floating device comprises afloating cabin, the unmanned aerial vehicle taking-off and landing platform, a high-pressure submersible pump, a balance weight cabin and a power drive device. Solar cell panels are arranged, so thatsolar energy serves as an energy source. The multifunctional submerging and floating device is provided with an energy storage device, and an unmanned aerial vehicle, all types of instruments and equipment carried on the multifunctional submerging and floating device and submarine electronic equipment can be charged. Through the maneuverability of the power drive device, the position of the multifunctional submerging and floating device can be adjusted or the multifunctional submerging and floating device can slowly move to the designated position. The multifunctional submerging and floatingdevice is simple in structure, flexible in loading and transporting and quick to arrange; and on the base of the platform, the functions of exploration, receiving, storage, launching, object transit shipment and the like can be expanded as well, and the device is extended to be the universal type multifunctional submerging and floating device which can process all types of information and integrate multiple functions.

The invention discloses a co-rotating outflow internal-hole type high performance swirling separator. In the prior art, an effect of removal of fine oil drop of hydroclone is poor. According to the swirling separator, a problem of the prior art is solved. The swirling separator is characterized in that: a circular table-shaped multi-stage internal swirling body is fixed between an upper sealing surface and a lower sealing surface, wherein a inner cylinder in the swirling chamber portion, a inner cylinder in the large conoid portion, a inner cylinder in the small conoid portion, and a inner cylinder in the tail tube portion are sequentially connected from the top to the bottom to form the circular table-shaped multi-stage internal swirling body; the inner cylinder in the small conoid portion has a hollow structure, and is provided with oil collecting holes; a funnel-shaped oil collecting cone is arranged in the inner cylinder in the tail tube portion, an upper open of the oil collecting cone is communicated with the inner chamber of the inner cylinder in the small conoid portion, and a lower open of the collecting cone passes through the center of the lower sealing surface, and forms a fixed connection with a oil output tube, wherein the oil output tube is introduced vertically; a water output tube is connected to the bottom of a outer swirling body, wherein the water output tube is introduced along tangent line direction to the circle of the outer swirling body and is communicated with a swirling inner chamber, swirling water output direction of the water output tube is the same as the swirling direction in the swirling inner chamber. The swirling separator has characteristics of removal of the tiny oil drop in the water, high separation efficiency and simple structure.

The invention discloses a fixing device for power equipment transportation. The fixing device for power equipment transportation comprises a moving wheel, a supporting plate and a bottom plate; the moving plate is arranged at the bottom of the bottom plate; damping elastic sheets and a damping device are arranged at the top of the bottom plate; the damping elastic sheets are arranged at the two ends of the bottom plate; one end of each damping elastic sheet is connected with the supporting plate and the other end of each damping elastic sheet is connected with the bottom plate; a sliding rod,a reset spring, a sleeve and a hydraulic lifter are arranged in the supporting plate; and buffer devices are arranged on the two sides of the supporting plate. Power equipment can be clamped for twice, so the fixing effect is greatly improved through mechanical preliminary clamping and positioning and manual fixation; furthermore, the device can be damped, so damage to the power equipment by too large vibration is avoided, an impact force generated by that the fixing device slides in the transportation process and collides with an object can be eliminated, and the safety of the power equipmentis guaranteed maximally.

The invention discloses a lower buffer structure for a display panel, a package buffer structure and a package manufacture method. The lower buffer structure comprises a bearing frame body, two first buffer bodies and two second buffer bodies, wherein the bearing frame body comprises a bottom plate and also comprises a first side plate and a second side plate which respectively extend upwards from two opposite sides of the bottom plate; the two first buffer bodies are respectively arranged at the junction of the bearing frame body and the bottom plate and the junction of the second side plate and the bottom plate; the two second buffer bodies are respectively arranged on the inner wall of the first side plate and the inner wall of the second side plate of the bearing frame body and positioned above the first buffer bodies; a line of first vertical groove bodies arranged horizontally at intervals are arranged on the inner side walls of the first buffer bodies; a line of second vertical groove bodies horizontally arranged at intervals are arranged on the inner side walls of the second buffer bodies; the first groove bodies and the second groove bodies correspond one to one up and down; and the hardness of the first buffer bodies is small than that of the second buffer bodies. The invention has low cost, and can provide better buffer protection for the display panel.

The invention relates to the field of electric vehicles, particularly to an electric quantity control device and method of a hybrid energy storage system electric vehicle. The control device comprises connecting a diode and a contactor between a lithium battery and a super capacitor, and the breakover direction of the diode is that electricity can only flow from the battery to the super capacity. The control device also comprises a sensing device for collecting various states of the electric vehicle and a control system which can control various parts of the electric vehicle according to information transmitted by the sensing device, wherein the sensing device collects various states of an engine in real time and transmits the states to the control system, and the control system compares and judges the states with preset values to control various parts to work and accordingly achieve electric quantity control. The electric quantity control device of the hybrid energy storage system electric vehicle can reasonably distribute the electric quantity of an energy storage system and an APU (auxiliary power unit) system to enhance the integral dynamic performance, improve the comprehensive fuel saving rate and reduce the energy consumption and discharging, and meanwhile, prolong the service life of the power battery and improve the electricity efficiency and the operating reliability of the power battery.

The invention discloses a distribution network integrated lightning protection system comprising a transformer substation, and output lines led out of three phases of outlet ports of a transformer substation transformer. Each phase of line is connected in series with an overvoltage isolator. Overhead wires are formed through lead-out of the output ends of the voltage isolators to a pole tower. Pole tower insulating cross arms support the overhead wires, and power transmission wires are fixed via multifunctional wire clamps arranged on the insulating cross arms. A wave-resistant lightning rod is installed at the top end of the pole tower. A simple and rapid grounding device is embedded in the ground of the bottom part of the pole tower so that integrated lightning protection performed on the distribution network lines and the transformer substation is realized with pole tower protection acting as the center and prevention of distribution network lightning tripping and disconnection acting as the key points. Distribution network line dedicated lightning equipment like the wave-resistant lightning rod, the insulating cross arms, the multifunctional wire clamps and the simple grounding device are organically integrated by the system so that the multilayer and three-dimensional integrated lightning protection system is constructed and realized, lightning trip-out rate and disconnection rate can be substantially reduced, and maximum matching of distribution network lightning economical efficiency and effectiveness is realized.

The invention discloses a screw type buffer hinge. Upper and lower portions of one side of a left hinge piece are provided with an upper sleeve and a lower sleeve. One side of a right hinge piece is provided with a middle sleeve. An upper end cover is disposed in the upper sleeve. A fixing sleeve, a damper and a lower end cover are disposed in the lower sleeve. A side wall of one end portion of the fixing sleeve is provided with a rotating chute. A screw member is disposed in the middle sleeve. One end portion of the screw member is fixedly sleeved with a spring. One end of the spring extends towards the inside of the upper sleeve and is fixed in the upper sleeve. The other end portion of the screw member is provided with a rotating pin cooperated with the rotating chute. When the rotating pin moves in the rotating chute, the screw member is driven to move in the middle sleeve up and down, and the screw member drives the right hinge piece to rotate relative to the left hinge piece, so that a door is closed. The door can be closed without being powerfully pushed by a user, collision between the door and a doorframe can be effectively prevented, and compared with a hydraulic hinge, the screw type buffer hinge has the advantages that the screw type buffer hinge is simple in structure and long in service lifetime, and oil leakage can be prevented.

The electromagnetic energy superhigh speed shooting cannon consists of electromagnetic energy shooting unit, magnetic energy bullet, gun barrel, aiming and navigating system, current rectifying and controlling system, HF switching power supply, bullet feeding system, bullet speeding system, electric power system, conducting tracks, T-shaped magnetic energy collector, cooling system, air bufferingsystem, barbette, etc. The present invention shoot bullet through the combination of magnetic force and electromagnetic energy and fastens the bullet flying speed and shooting rate extremely.

The invention discloses a medical waste incinerator applied with the oxygen-enriched combustion technology, and belongs to the field of environmental-friendly and energy-saving devices. The medical waste incinerator comprises an incinerator body, a second combustion chamber, a combustion air fan, an oxygen-enriched air supply system and a smoke tail processing system. Combustible components of medical waste are decomposed into combustible gas (smoke) in the incinerator body, and combustible gas enters a second combustion chamber body and flows downwards; the combustion air fan delivers combustion air into the incinerator body and the second combustion chamber body; the oxygen-enriched air supply system is used for generating oxygen-enriched gas and leading the oxygen-enriched gas into the second combustion chamber body; the smoke is contacted with the common combustion air and the oxygen-enriched gas which enters into the second combustion chamber respectively, turbulence and perturbation are formed in a main combustion zone by the smoke, and therefore the fact that waste gas burns out is facilitated. According to the medical waste incinerator applied with the oxygen-enriched combustion technology, the burning temperature of the waste gas of the incinerator is guaranteed to the maximum extent through oxygen-enriched equipment and a secondary air system, the second combustion chamber is facilitated to form turbulent flow, the staying time of the smoke in the second combustion chamber is prolonged, and therefore dioxin is decomposed.

The invention provides a real-time situation model and visual fusion decision method which is applicable to rescue for leakage accidents of hazardous chemical substances. The method comprises the following steps: field environment data of a hazardous chemical substance accident is collected, fluidized and sent to a command center; the command center de-fluidizes the received data to restore the field environment data; the leakage rate of source intensity is calculated; a real-time situation is simulated according to the leakage rate of source intensity, the field environment data and accident terrain data; concentration points of grid computing are used to carry out triangulation difference calculation on the result of situation simulation, the spread movement track of different dangerous areas is rendered according to color gradient, and the maximum accident influence scope is predicted; and the population density in the maximum accident influence scope is calculated, and an optimal rescue evacuation path is evaluated out. The disadvantages of a static data model and the real-time transmission problem caused by shortage of bandwidth resources are overcome, and the accuracy, effectiveness and level of intelligence of emergency rescue are improved effectively.

The invention discloses an environment-friendly waste crusher for constructional engineering, which comprises a feeder, a slide chamber, a bottom tank, a crushing tank, and a crushing motor, the crushing tank is fixedly mounted on the left side of the top of the bottom tank, the right side of the top of the bottom tank is open, the slide chamber is fixedly mounted on the right side of the top of the bottom tank, moreover, the slide chamber communicates with the bottom tank, an opening is arranged at the joint between the bottom of the crushing tank and the bottom tank, the opening is a squareopening, the crushing tank communicates with the bottom tank via the opening, a hydraulic cylinder support is fixedly mounted on the top of the crushing tank, a hydraulic cylinder is fixedly mounted on the top of the hydraulic cylinder support, a retractable rod is fixedly mounted on the bottom of the hydraulic cylinder, the bottom of the retractable rod extends into the crushing tank, furthermore, a first pressing plate is fixedly mounted on the bottom of the retractable rod, and a second pressing plate is arranged on the bottom of the first pressing plate. According to the environment-friendly waste crusher for constructional engineering, the design is reasonable, functionality is diversified, the crushing effect is good, the speed is high, moreover, metal parts can be recycled, resources are saved, and the working efficiency is increased.

The invention discloses an EPE material for a crawling pad, a preparation method of the EPE material and the crawling pad. The EPE material comprises the following components in parts by mass: 90-100 parts of low density polyethylene, 5-8 parts of a silane coupling agent, 0.5-2 parts of a butane foaming agent, 40-70 parts of talcum powder, 2-5 parts of glyceride, 1-3 parts of zinc oxide and 0.5-2 parts of stearic acid. The crawling pad prepared from the EPE material is favorable in water resistance, is flexible, light and elastic, can absorb and disperse external impact force through bending to achieve a buffer effect, overcomes the defects of deformation and poor rebound resilience, and meanwhile, has a thermal insulating effect and is easy to clean.