181results about How to "Achieve replacement" patented technology

The utility model discloses a kind of water softener. Water softener includes resin tank, water distributor assembly, upper head and lower head, the top opening of resin tank forms first opening, the bottom opening of resin tank forms second opening, water distributor assembly can be placed in resin tank by first opening or second opening, space for accommodating softening resin is formed between water distributor assembly and resin tank, upper head is detachably blocked at first opening, lower head is detachably blocked at second opening. The water softener can select to detach upper head to open first opening, to realize the replacement of softening resin, also can select to detach lower head to open second opening, to realize the replacement of softening resin, so that water softener resin replacement mode is simple, convenient, and compared with replacing entire resin tank structure, only the resin replacement mode of the replacement of softening resin is lower in cost.

The utility model discloses a kind of unwinders of welded pipe equipment, it is related to unwinder technical field, the unwinder of welded pipe equipment, including unwinder body, the side fixedly connected with base of unwinder body is provided with winding cone cylinder one and winding cone cylinder two, two winding wheels being symmetrically arranged are provided between winding cone cylinder one and winding cone cylinder two, the section of winding wheel is hourglass shape, the surface of base is provided with multiple groups of supporting assembly, winding cone cylinder one and winding cone cylinder two are respectively set in corresponding supporting assembly, the surface of base is provided with adjusting mechanism, two winding wheels are all located above adjusting mechanism.The unwinder of welded pipe equipment, the replacement of winding cone cylinder one 4 and winding cone cylinder two 7 can be realized, so that device can process different size steel pipes, so as to expand the application range of device, more in line with actual production needs, worthy of promotion.

The utility model provides a visual portable bidet, which relates to the technical field of personal care and comprises a bidet body, one end of the bidet body is used for being connected with a liquid storage bottle, the other end of the bidet body is used for being connected with a visual water outlet head, and a plurality of water outlet holes are formed in the visual water outlet head. And an endoscope higher than each water outlet hole is arranged at one end far away from the bidet body, so that a user can deeply observe the cleaning condition of a cleaned part, and the problem that the internal cleaning condition of a private part is difficult to observe by an existing bidet is solved.

The invention discloses a jaw crusher rack, and belongs to the technical field of jaw crusher racks, the jaw crusher rack mainly comprises a base plate, a left side plate, a rear plate, a right side plate and a front plate, the left side plate and the right side plate are symmetrically arranged above the base plate, and the rear plate and the front plate are clamped to the two ends of the left side plate and the two ends of the right side plate respectively to form a closed rack main body; second tenons are fixedly connected to the connecting position of the left side plate and the front plate and the connecting position of the right side plate and the front plate, and second mortises are formed in the connecting positions of the front plate and the second tenons. The machine frame has the beneficial effects that vibration transmission is weakened, part abrasion and scrap iron generation are reduced, the iron impurity mixing risk is reduced, the ore sand product purity is guaranteed, the overall strength and connection stability of the machine frame are improved, stress concentration is avoided, local part replacement can be achieved through modular design, and the production cost is reduced. The whole rack does not need to be replaced, so that the maintenance cost and shutdown loss are greatly reduced.

The utility model discloses an efficient and stable screw conveyer, and relates to the technical field of screw conveyors, the efficient and stable screw conveyer comprises a screw conveyer shell, one side of the screw conveyer shell is fixedly provided with a support frame, the top of the support frame is fixedly provided with a motor, the output end of the motor is fixedly provided with a rotating shaft, and the output end of the rotating shaft is fixedly provided with a screw rod. A bearing is fixedly installed on one side of the spiral conveyor shell, the rotating shaft is arranged in the bearing and extends into the spiral conveyor shell, an inflator pump is fixedly installed in the supporting frame, the bottom of the inflator pump communicates with a connecting hard pipe, and after gas enters the connecting hard pipe, the gas enters the connecting hard pipe, and then the gas enters the connecting hard pipe. When the bearing works, air is conveyed into the annular air nozzle through the connecting hard pipe, then the annular air nozzle blows air to the bearing, dust on the bearing is cleaned, foreign matter such as dust and chippings in the bearing and the surrounding environment can be removed through blowing, the risk that pollutants invade into the bearing is reduced, and the service life of the bearing is prolonged.

The invention discloses a heavy object replacement positioning method based on machine vision and PLC control, and belongs to the technical field of heavy object replacement in high-altitude narrow space. According to the method, firstly, a calibrated 3D camera is used for collecting three-dimensional point clouds of stone pier bolt holes and weight hole positions, pose data are extracted through preprocessing and feature matching, and coordinate conversion is achieved through hand-eye calibration and transmitted to a PLC. And then the PLC analyzes rotation and translation parameters required by the weight according to a preset algorithm, controls the hydraulic cylinder and the linear module to adjust the pose of the weight, gradually completes rotation and X-axis and Y-axis movement, and achieves alignment of each hole site of the weight and a corresponding stone pier bolt hole. The device can realize automatic precision positioning of heavy object replacement in a high-altitude narrow environment, has the advantages of high precision, strong adaptability, safe and reliable operation and the like, and can effectively solve the problem of difficulty in manual alignment.

The utility model provides a mechanical arm clamp which comprises a base, a clamping air cylinder is fixedly connected to the bottom end of the base, an adjusting assembly is arranged at the telescopic end of the clamping air cylinder, and a clamping plate is arranged at the bottom end of the adjusting assembly. The adjusting assembly comprises a fixing frame fixedly connected to the telescopic end of the clamping air cylinder, the inner wall of the fixing frame is rotationally connected with a two-way lead screw, one end of the two-way lead screw extends out of the fixing frame and is fixedly connected with an adjusting motor, and a sliding rod is fixedly connected to the position, below the two-way lead screw, of the inner wall of the fixing frame; compared with the prior art, the clamping device has the following beneficial effects that the two first mounting seats move towards each other or away from each other by adjusting the motor, the two-way lead screw and the sliding rod, and the first transmission plate and the second transmission plate are matched to drive the second mounting seats to slide along the surface of the sliding rod, so that the distance between the clamping plates can be adjusted; therefore, the clamp can be suitable for books of various sizes, and the books are prevented from being bent in the carrying process.

This utility model discloses a 3D scanner with replaceable filters, comprising: an instrument body; a camera unit and a laser projection unit disposed within the instrument body, wherein the camera in the camera unit and the projection surface in the laser projection unit are both disposed on the measurement surface of the instrument body; and a supplementary lighting unit located around the camera and disposed on the measurement surface, wherein the filter unit in the supplementary lighting unit is detachably disposed at the front end of the light source assembly in the supplementary lighting unit. This utility model significantly improves the scanner's adaptability to different material surfaces and scanning quality through the design of replaceable filter units, optimizes image clarity and detail, and allows for flexible adjustment and rapid replacement of filters according to the characteristics of different materials.

The utility model relates to filling device technical field discloses a kind of liquid dripping device capable of adjusting filling nozzle, including rack, the bottom of the rack is fixedly connected with base, the top of the rack is provided with adjusting mechanism, the adjusting mechanism is used to adjust the caliber of canning nozzle to optimize drop, the top left side of the base is provided with blowing mechanism, the blowing mechanism is used to airflow auxiliary liquid, the top rear side of the base is provided with cleaning mechanism, the left side of the adjusting mechanism is provided with infusion mechanism, the adjusting mechanism includes sealing ring, the outer wall of the sealing ring is fixedly connected in the top inside of base, the inner wall of the sealing ring is slidably connected with valve core. In the utility model, when the size of liquid outlet needs to be adjusted, it is not necessary to stop machine and replace spare parts, the valve core changes the filling port inner diameter of valve seat by moving, adjusts liquid flow rate to meet the delivery demand, effectively realizes stepless regulation.

The utility model discloses a kind of automobile seat cover of convenient replacement adhering surface, including backrest chair cover, the lower side of backrest chair cover is movably connected with seat cover, the surface of backrest chair cover is equipped with backrest cloth, the surface of seat cover is equipped with cushion cloth, the rear surface of backrest chair cover and the bottom end surface of seat cover are both fixedly installed with fixed block, the both sides of fixed block are slidably installed with movable rod, the end of movable rod is all connected with rubber coating block, rubber coating block is all coated in the surface of backrest chair cover and seat cover, the both ends of backrest cloth and cushion cloth are all connected with the inside of rubber coating block. The utility model is by inserting the both ends of backrest cloth and cushion cloth into the inside of rubber coating block respectively, so that backrest cloth and cushion cloth coat backrest chair cover and seat cover, to realize the replacement of backrest cloth and cushion cloth, avoid the situation that backrest chair cover and seat cover are all replaced again when the adhering surface of backrest chair cover and seat cover and human body is damaged.

The utility model relates to the technical field of compressor heat dissipation, and discloses a heat dissipation case for a compressor, which comprises a bottom plate, the top of the bottom plate is fixedly connected with a liquid cooling mechanism, the top of the bottom plate is provided with a filtering mechanism, and the top of the bottom plate is fixedly connected with a case body. The bottom of the liquid cooling mechanism is detachably connected to the top of the filtering mechanism, the filtering mechanism comprises a sewage storage tank, the outer wall of the sewage storage tank is fixedly connected with a limiting ring, the inner wall of the limiting ring is detachably connected with a limiting rod, and the top of the limiting rod is fixedly connected with a sliding rod; the outer wall of the sliding rod is slidably connected with a mounting box, and the inner wall of the mounting box is fixedly connected with a fixing ring. According to the utility model, the sewage discharging assembly for discharging impurities in the cooling liquid is additionally arranged, so that the cooling liquid can be ensured to circulate at designed flow, chemical reaction between the impurities and the cooling liquid can be avoided, the cooling liquid is prevented from going bad, and the service life of the cooling liquid is prolonged.

The bedside monitoring room alarm bracelet comprises a monitor and a bracelet body, a bracelet watchband is connected to the bracelet body, a wireless transmission module is installed on the monitor and is used for wirelessly transmitting monitoring information on the monitor, a processor module, a display module, an alarm module and a power module are installed on the bracelet body, the wireless transmission module is electrically connected with a wireless receiving module through wireless connection, the monitoring information collected by the monitor and received by the wireless receiving module is collected and processed by the processor module, alarm information is transmitted to the display module on the bracelet body, and the processor module simultaneously alarms and reminds medical staff wearing the bracelet through the alarm module, so that the medical staff can timely understand the condition of the patient, the bracelet is muted after alarming, the medical staff can know which patient under their jurisdiction alarms first, the alarm content and make a quick response.

The utility model discloses an assembly type crankshaft, including driving crank, driven crank and two balance blocks. The center of two balance blocks all is provided with the installation through -hole, and driving crank, driven crank are inserted in corresponding installation through -hole respectively. Two balance blocks are spaced apart, and are provided with connecting rod needle bearing between. Connecting rod needle bearing is divided into the installation part of middle and the insertion part of both ends. The insertion hole is set up on two balance blocks. The insertion hole eccentricity sets up on the balance block. Two insertion parts on connecting rod needle bearing are inserted in corresponding insertion hole. The utility model discloses through dividing crankshaft into driving crank, driven crank, connecting rod needle bearing and two balance blocks, and through the insertion type assembly between, make crankshaft be combined by multiple independent sections, and effectively solve the problem that integral type crankshaft processes difficultly.

This utility model relates to the field of laser welding technology and proposes an underwater welding laser head, including a stainless steel tube cover; a connecting plate fixedly connected to the inner wall of the stainless steel tube cover, one end of which is fixedly connected to the end of the laser welding head; a spray disc fixedly connected to the lower end of the inner wall of the stainless steel tube cover, with spray holes at equal angles at the bottom of the spray disc; a connecting pipe extending to the outside of the stainless steel tube cover fixedly connected to one side of the top of the spray disc, with the bottom end of the connecting pipe communicating with the interior of the spray disc; and a protective cover movably connected to the bottom of the stainless steel tube cover, with fixing components at the top of the protective cover and the bottom of the stainless steel tube cover. Through the spray disc, connecting pipe, and spray holes, an umbrella-shaped protective gas curtain can be sprayed out, ensuring that a small area below the end of the laser welding head is free of water, facilitating welding operations. At the same time, high-pressure gas blows away welding fumes, ensuring smooth welding.

The utility model relates to computer support technical field, specifically disclose a kind of turnover type computer support, including: bottom plate, the top of bottom plate is provided with adjusting disc, the top of adjusting disc is provided with placing plate, the inside rotation of bottom plate is provided with rotating shaft, and adjusting disc is fixedly connected to the top of rotating shaft surface, the side of adjusting disc top is fixedly connected with firm frame, the inside of bottom plate is provided with air slot, the bottom end of rotating shaft surface is fixed and has first tooth disc, the inner side wall of actuating groove is slidably connected with actuating block, the side of actuating block is fixedly connected with first return spring, the end of connecting rod away from actuating block is fixedly connected with first clamping block;The utility model is through the collocation use of adjusting disc, firm frame, first tooth disc, placing plate, second clamping block, down bar and pressing block, so that notebook computer can be placed horizontally adjusted position, it is convenient and colleague better to carry out exchange discussion to work content, avoid the situation that it falls due to frequent handling notebook computer.

This utility model discloses a modular welding machine electrode quick-change snap-fit ​​device, specifically relating to the field of snap-fit ​​technology. It includes a welding machine module base, with a positioning ring fixedly connected to the lower surface of the base. A snap-fit ​​assembly is installed inside the positioning ring, comprising a welding machine electrode inserted into the inner wall of the positioning ring, and a protrusion fixedly connected to the outer wall of the electrode, the protrusion being inserted into the positioning ring. This utility model uses a snap-fit ​​assembly where a snap-fit ​​post moves a snap-fit ​​bar to the right, which in turn moves a magnetic block to the right. The welding machine electrode, along with the protrusion, moves downwards under gravity, allowing the electrode to be quickly discharged. A new welding machine electrode is then positioned and inserted into the positioning ring. Simultaneously, the new electrode moves a new protrusion upwards and positions it within the positioning ring. The magnet and the magnetic block quickly magnetically engage and lock, resulting in higher replacement efficiency.

The utility model belongs to industrial wastewater treatment technical field discloses a kind of Fenton oxidation pond packing shelf and Fenton reaction pond device, including packing shelf body and at least two hanging material layers, and packing shelf body includes upper shelf body and lower shelf body, and both are detachably connected along vertical direction, and upper shelf body top is provided with lifting connection structure;At least two hanging material layers are respectively arranged on upper shelf body and lower shelf body, and each layer hanging material layer includes multiple hanging material cross beams that are arranged in parallel along horizontal interval, and multiple filter bags are detachably and interval hung along the length direction of each hanging material cross beam, and filter bag interior is filled with zero-valent iron reagent, and raw water in oxidation pond can contact reaction with zero-valent iron reagent in its interior through the small hole of filter bag.The utility model effectively improves the contact efficiency of reaction reagent, reduces ferrous sulfate consumption, makes reaction process more sufficient, accelerates reaction rate, improves treatment effect;Meanwhile, it is convenient to quickly replace and supplement reaction reagent on packing shelf, and operation is simple.

The application relates to an atomizer and an electronic atomization device. The atomizer comprises a liquid storage assembly including a shell and a sealing cover arranged at one end of the shell, a liquid storage cavity is formed between the shell and the sealing cover, and the sealing cover is provided with a punctured structure. A heating assembly is connected to one end of the liquid storage assembly provided with the sealing cover, and the heating assembly comprises a puncturing piece for puncturing the punctured structure to form a lower liquid passage connected to the liquid storage cavity. The outer diameter of the puncturing piece is smaller than that of the punctured structure, and the sealing cover is further provided with a sealing structure for sealing the gap between the sealing cover and the puncturing piece. Since the outer diameter of the puncturing piece is smaller than that of the punctured structure, the friction between the puncturing piece and the sealing cover is small after the puncturing piece punctures the punctured structure, so that the user can easily separate the liquid storage assembly and the heating assembly to replace the liquid storage assembly, thereby effectively improving the user experience.

The utility model discloses a novel water supply pipeline pressure monitoring device, which comprises a monitoring pipe, a pressure sensor and a display, a mounting seat is fixed at the upper end of the monitoring pipe, a mounting sleeve is further mounted on the monitoring pipe, and the pressure sensor is inserted into the mounting sleeve in a threaded manner; the connecting mechanisms are arranged at the two ends of the monitoring pipe and used for connecting the monitoring pipe with the water supply pipeline; the fixing mechanism is arranged on the mounting seat and is used for fixing the display on the mounting seat; the auxiliary mechanism is arranged between the pressure sensor and the display and is used for electrically connecting the pressure sensor and the display. The water pressure sensor and the display are convenient to replace, the operation is simple, the maintenance cost can be effectively reduced, and the use requirements can be better met.

The utility model discloses a cathode electrophoretic paint raw material sand mill with a protective structure, which relates to the field of sand mill equipment, and comprises a base, the upper surface of the base is fixedly connected with a sand milling cylinder, one side of the base is provided with a support frame, the surface of the support frame is fixedly connected with a connecting pipe, and the connecting pipe is fixedly connected with the protective structure. A conveying pipe is inserted into the inner wall of the connecting pipe, a sealing plate is fixedly connected to one end of the conveying pipe, a filter screen is detachably connected to the inner wall of the sealing plate, and a driving separation mechanism is fixedly connected to the upper surface of the supporting frame. The hydraulic telescopic cylinder is controlled to drive the driving plate and the convex shaft to move together, the driving plate drives the ring to be stressed through the convex shaft, the ring drives the conveying pipe and the sealing plate to move towards the connecting pipe close to the conveying pipe, the sealing plate is far away from the sanding barrel at the moment, and a grinding ball in the sanding barrel is replaced. And the filter screen on the sealing plate is replaced.

The utility model discloses a novel bunt tide, relates to musical instrument technical field, including the tube body, four tuning holes are seted up in the tube body front side bottom, the replaceable contact mouth is provided with three clamping blocks in the array of tube body top end outer wall bottom end outer wall, and the fixed connection of limit stop is provided with in the tube body outer wall close to the position of clamping block, the protection ring is provided with in the tube body bottom end outer wall, the auxiliary mechanism is provided with in the tube body outer wall close to the position of tuning hole, and the auxiliary mechanism includes left -hand auxiliary block and right -hand auxiliary block. The utility model discloses design structure is reasonable, and the left hand index finger and middle finger are placed respectively on the both sides of limit ring B, and the left hand index finger is positioned and is guided to the groove A of placing, and right hand index finger and middle finger hold the tube body and are placed below limit ring C, and right hand thumb is placed in the groove B of placing on limit ring C under the guidance of limit ring C, and contact block A and contact block B support left and right palm while holding the tube body, have the advantage that the hand of player is attached.

This utility model discloses a TPE hollow wire heating hose, belonging to the technical field of heating hoses. The TPE hollow wire heating hose includes a tube body, with a stainless steel tube fixedly installed on the surface of the tube body. A temperature sensor is detachably installed inside the stainless steel tube. A snap-fit ​​mechanism is fixedly installed inside the stainless steel tube, and a limiting mechanism is fixedly installed on the surface of the stainless steel tube. The main body of the tube is made of Teflon tubing, which has good flexibility and high-temperature resistance, reducing carbonization. The outer layer of the Teflon tubing uses four layers of steel wire braided mesh to ensure the working pressure of the hose. The outer layer of the steel wire braided mesh uses four layers of thermal insulation cotton, which has good insulation and uniform heat conduction. The snap-fit ​​mechanism connects the stainless steel tube and the temperature sensor. During replacement, the snap-fit ​​plate can be removed from the snap-fit ​​groove without affecting the sealing performance. The limiting mechanism limits the snap-fit ​​plate, allowing the temperature sensor to operate for extended periods.

This invention relates to the field of roll changing technology, and in particular to a roll changing device, roll changing system, and roll changing method adapted to multi-roll synchronous roll changing. The roll changing device includes a mounting support assembly, a clamping unit, and a first drive mechanism. The mounting support assembly includes a mounting base with clamping channels suitable for axial insertion of the roll into the mounting base. The clamping unit includes at least one pair of clamping components arranged opposite each other and forming at least two parallel clamping channels. The clamping components are movably mounted on the mounting base and can at least partially extend into or retract from the clamping channels. Each clamping component includes a fixed clamping block and a floating clamping block, with an adjustable clamping channel formed between the fixed and floating clamping blocks. The first drive mechanism drives the oppositely arranged clamping components to clamp or release the roll. The advantages include: the clamping unit can achieve synchronous clamping of multiple rolls with diameter deviations, improving efficiency, having a wide range of applications, providing simple and reliable roll changing, and reducing costs.

The utility model provides a kind of split type spliced handlebar and luggage, it is related to the technical field of daily necessities, the split type spliced handlebar includes handlebar assembly and sleeve, the quantity of handlebar assembly is set to two, handlebar assembly is provided with plug-in rod, two plug-in rod are oppositely arranged and end detachably connected to form support rod, the sleeve is sleeved on the support rod;The luggage includes the split type spliced handlebar;Two handlebar assembly and sleeve of the utility model cooperate with each other, not only can carry larger load, the lifting effect is remarkable, and can be selected according to the actual demand of user The sleeve of corresponding appearance is installed, appearance is various and exquisite, simultaneously when handlebar is damaged, the replacement of single component can be realized, structure is flexible, and use cost is low.

This utility model relates to the field of amorphous motor manufacturing, and more particularly to a manufacturing apparatus for amorphous motors, including a worktable; it also includes a mounting plate, a support plate, a rotating shaft, a support rod, a cutting blade, a docking seat, a first driven gear, a first drive motor, a first driving gear, and a docking assembly. A mounting bracket is provided on the upper surface of the worktable, and a transmission assembly is provided on the top of the inner surface of the mounting bracket. This utility model, by setting up a first drive motor, drives the first driving gear to rotate during operation. When the first driving gear rotates, it drives the first driven gear meshing with it to rotate synchronously, thereby causing the rotating shaft to rotate. When the rotating shaft rotates, it can switch between different cutting blades, allowing different cutting blades to move to a position directly below the rotating shaft, and then dock with the docking seat through the docking assembly, thereby driving the corresponding cutting blade to rotate, thus achieving the purpose of changing different cutting blades.

The present application provides a kind of sunning frame, comprising: main support, storage rack, temperature and humidity detection component, light chasing component, heating component, weight detection component and blowing component.Relative to prior art, the sunning frame of the present application can determine the water content of the drying material by weight detection component, and divide the drying process into three stages of "fast drying" → "slow drying" → "dry collection", dynamically adjust the angle of the storage rack, wind speed, heating temperature according to the water content of the drying material, accurately delay the formation of the surface cutin layer of the drying material, ensure the smooth passage of internal moisture migration, thereby improve the drying efficiency and realize the thorough drying of the drying material. Automatic tracking of the direction of direct sunlight and timed turning over are realized, so that the drying material is heated more evenly, which is beneficial to improve the drying effect. The blowing component effectively accelerates the replacement of wet air on the surface of the drying material. The design of light chasing component, heating component and rainwater detection can realize all-weather light chasing drying.

The utility model relates to the technical field of tissue embossing machines, in particular to an efficient tissue embossing machine which comprises an embossing machine body, a first guide pipe and a second guide pipe are arranged on the two sides of the embossing machine body, the first guide pipe and the second guide pipe are used for heat conduction oil to circularly flow, a rubber roller and a plurality of embossing rollers are arranged in the embossing machine body, and a supporting frame is rotationally connected to the rubber roller. The embossing machine body is provided with a roller replacing assembly used for replacing different embossing rollers. According to the embossing roller replacing device, the cam divider is started through the roller replacing assembly, the multiple embossing rollers on the rotating frame are driven to rotate, and therefore the embossing rollers of different patterns can be replaced, and the first guide pipe and the second guide pipe are driven to move through the hydraulic cylinder; and the first guide pipe and the second guide pipe can enter the embossing roller to form a channel with the inner cavity of the embossing roller, so that the heat-conducting oil conveniently enters the embossing roller and is discharged to achieve heat-conducting oil circulation, and the embossing roller is driven by the transmission plate to rotate through the rotation of the second guide pipe to achieve a normal working state.

The utility model relates to acrylic plate technical field especially relates to acrylic flash point structural board, include: board body, the inside of board body is equipped with the accommodating groove of one end is open, and the side wall department of board body is equipped with two positioning holes close to the opening, and two positioning holes all in -line are equipped with the magnetic block of embedding, the bale, the bale is bonded and is pasted in the outer wall of board body, the pattern board, the pattern board is inserted in the accommodating groove and is consistent with the size of accommodating groove, the seal, both ends of seal are all solid and are equipped with the magnetic column, and the magnetic column is inserted in the positioning hole and is connected with the magnetic block magnetic suction, this acrylic flash point structural board can realize the replacement of different patterns and can improve the protectivity of acrylic plate, and can make the light source of side surface luminous homogenization, make the whole pattern display effect better, clearer, and have the flash silver effect, can improve the ornamental value, can strengthen the ultraviolet resistance ability simultaneously, prevent the board material aging, discoloration, improve the wear resistance and self -cleaning.