33results about How to "Won't stain" patented technology

The invention discloses a real-time water sample acquiring system which comprises a towed body arranged in a sampling water area, a water sampling pipe, a water sampling device, a hydrological parameter detector and a location device, wherein the water inlet end of the water sampling pipe is arranged on the front end of the towed body; the water sampling device is communicated with the water outlet end of the water sampling pipe, and is used for acquiring a water sample through the water sampling pipe; the hydrological parameter detector is used for detecting hydrological parameters of the sampling water area; and the location device is used for obtaining geographical location information of the sampling water area. The real-time water sample acquiring system can be used for acquiring a water sample suitable for trace analysis, can continuously work when a ship is in a sailing state and can also be used for recording hydrological data and location information of the water sample in real time. The invention also provides a real-time water sample acquiring method. According to the invention, hydrological data such as temperature, salinity and depth are monitored in real time while the water sample is acquired, and a real-time and synchronous water sampling sailing track is obtained through a global positioning system and data acquisition. The system and the method meet the requirement of trace analysis sampling and dynamic continuous sampling and further provide detailed real-time sailing track and hydrological information.

The invention relates to the technical field of solar condensation, and provides a compound parabolic condenser combining inside condensation and outside condensation. The condenser comprises a glass tube (2), a receiving tube (1) positioned in the glass tube (2), an inside compound parabolic condenser plate (3), an outside compound parabolic condenser plate (4), a heat preservation layer (5), support feet (6) and a support beam (7), wherein the receiving tube (1) and the glass tube (2) are respectively provided with a circle centre of the receiving tube and the circle centre of the glass tube; the circle centre of the receiving tube (1) is overlapped with the circle centre of the glass tube (2); vacuum is formed between the receiving tube (1) and the glass tube (2); the inside compound parabolic condenser plate (3) is arranged and fixed in the vacuum and is contacted with the glass tube (2); and a gap is formed between the inside compound parabolic condenser plate (3) and the receiving tube (1). The condenser has the characteristics of good condensation effect and simple installation.

The invention relates to a marking pen with a bent triangular holding part. The marking pen comprises a pen holder, at least one bent holding part arranged at one end of the pen holder, a front casing pipe arranged at one end of the holding part, a fiber writing assembly arranged in the front casing pipe in a penetrating way as well as an ink accumulating mechanism arranged inside the pen holder. Ink in the ink accumulating mechanism can be conveyed to the writing assembly for facilitating the writing; the outer circumference of the bent holding part is set to be triangular and has a guiding action for a user to naturally and respectively support against three circumferential sides with a thumb, an index finger and a middle finger and slightly hold, so that the user can hold the pen to write correctly and stably and the aim of rectifying the posture or the pen holding posture of children by using a fist pen (a color pen used at preschool stage) for the first time is achieved.

The invention relates to an LED (Light Emitting Diode) chip manufacturing technology, an LED chip structure and an LED chip packaging structure. According to the manufacturing technology, wolfram-molybdenum-copper alloy (WMoCu) is used as a substrate. The wolfram-molybdenum-copper alloy substrate is a good choice for a high-power LED chip heat dissipation substrate as the wolfram-molybdenum-copper alloy substrate has the thermal conductivity second only to that of a silicon carbide substrate, the cost of the wolfram-molybdenum-copper alloy substrate is far lower than that of the silicon carbide substrate, and meanwhile the wolfram-molybdenum-copper alloy substrate has the advantages of high temperature resistance, low expansion factor, high specific heat capacity, good mechanical machining property, easiness in manufacturing of mirror surfaces and the like. An LED chip in the invention sequentially comprises a wolfram-molybdenum-copper substrate layer, a U-GaN buffer layer and a N-type GaN layer from bottom to top, wherein an InGaN / GaN multiple-quantum well luminous layer and an N-electrode are arranged on the surface of the N-type GaN layer, and a P-type AlGaN layer, a P-type GaN layer, a current expanding layer and a P-electrode are also sequentially arranged above the InGaN / GaN multiple-quantum well luminous layer. Correspondingly, the LED chip has the advantages that the currents of the LED chip are vertically distributed, the substrate has high thermal conductivity and high reliability, the back surface of the luminous layer is a metal reflecting mirror, the surface has a coarsening structure, and the extraction efficiency is high.

The present invention discloses a kind of chemical and mechanical polishing liquid for polishing semiconductor indium antimonide, and the polishing liquid has organic alkali to replace inorganic alkali, increased chelating agent and activator to result in less scoring and high flatness of indium antimonide surface. The polishing liquid of the present invention consists of silica sol of SiO2 concentration 30-50% in 50-98 vol%, amine alkali 0.1-1.5 vol%, chelating agent 0.1-0.5 vol%, surfactant 0.5-2 vol%, oxidant 0.5-2 vol% and deionized water for the rest. The present invention has less scoring in the surface of indium antimonide, lowered surface roughness of indium antimonide and simple post cleaning.

The invention relates to a first-aid bleeding stopping dressing and a preparing method thereof. The bleeding stopping dressing comprises of a first layer, a second layer, a third layer and a fourth layer, wherein spunlace non-woven fabric containing chitosan fibers serves as the first layer, a non-woven fabric water absorbing pad with low water absorption capacity serves as the second layer, a non-woven fabric water absorbing pad with high water absorption capacity serves as the third layer, and a breathable and moisture nonpermeable isolation layer serves as the fourth layer. The second layer and the third layer are wrapped in the first layer and the fourth layer with the method of hot pressing on the peripheral edges of the first layer and the fourth layer. The first-aid bleeding stopping dressing has the quick bleeding stopping effect; meanwhile, the first-aid bleeding stopping dressing has the advantages that blood and wound percolate can be sealed in the dressing and prevented from staining the periphery skin and clothes, and good breathability is achieved.

The invention provides a device and method for removing a silica film from the surface of a silicon chip, and belongs to the field of semiconductor test equipment. The device comprises a hydrofluoricacid solvent bottle, a hybrid gas box, an atomizer and a reaction box, the hydrofluoric acid solvent bottle is communicated with an inlet of the atomizer via a first pipe, an outlet of the atomizer isarranged inside the hybrid gas box, the atomizer and the hybrid gas box are arranged in a sealed way, the upper end of the hydrofluoric acid solvent bottle is provided with an air inlet pipe communicated to the internal of the bottle, the air inlet pipe is communicated with an external nitrogen supply device, and communicated with the hybrid gas box via a second pipe, the hybrid gas box is connected with the reaction box via a third pipe, the third pipe is provided with a hybrid gas switch, and the reaction box is provided with an air outlet. Via the device and method, the silica film can beremoved without polluting the silicon chip itself, an inductive coupling plasma mass spectrometer can be used to analyze metal ions in the SiO2 film quantitatively, and metal can be monitored effectively in the back-seal technology.

The invention relates to a water basin, which comprises a water basin main body, an executing mechanism, a control system and a command input device, wherein a water basin inner cavity, which is provided with a drainage hole, is formed in the water basin main body; the executing mechanism is arranged in the drainage hole and is used for regulating the drainage hole to be under a drainage state for drainage or under a sealed state for water storage; the control system is electrically connected to the executing mechanism and is used for controlling the executing mechanism to regulate the drainage hole to be under the drainage state or under the sealed state; the command input device is arranged outside the water basin inner cavity and is electrically connected to the input end of the control system, and the command input device is used for commanding the control system to control the executing mechanism to regulate the drainage hole to be under the drainage state or under the sealed state. According to the water basin provided by the invention, by arranging the command input device, which is used for controlling the executing mechanism to regulate the drainage hole to be under the drainage state or under the sealed state by virtue of the control system, outside the water basin inner cavity, a user, without stretching a hand into sewage, can conduct drainage as required by operating the command input device, so that the hand is protected from being contaminated or wet; therefore, the water basin is more convenient to operate.

The invention relates to a marking pen with a bent holding portion and a clamped ink tube. The marking pen comprises a penholder, the bent holding portion arranged at one end of the penholder, a front sleeve arranged at one end of the holding portion, a fiber-made writing portion penetratingly arranged in the front sleeve, a fiber-made ink feeder arranged inside the holding portion and connected with the writing portion, an ink guide component connected with the ink feeder and the clamped ink tube connected with the ink guide component in a sleeved manner. One end of the ink guide component can push away an ink sealing mechanism on the clamped ink tube, ink flows into the ink feeder through the ink guide component, and the ink feeder and the writing portion absorb ink to the benefit of writing. The main design feature of the marking pen is that the marking pen is of the structure with the bent holding portion and the clamped ink tube, the structure can guarantee that a user can write smoothly in different use occasions, has wide visual field and quickly fills the marking pen with the ink and removes the ink without touching the ink with hands, the marking pen is used repeatedly, and the purpose of reducing resource waste and cost and expenditure is achieved.

Multiple methods are provided to paint a body of an inductor so that there is no residual glue remained in the lead that may cause extra cleaning work and soldering issues when the lead is soldered with an external circuit.

The invention discloses a production technology of a high-strength packing strap. The technology comprises the following steps that 1, 28-32 parts of polypropylene, 8-12 parts of LDPE and 4-6 parts of POE are selected and mixed, even stirring is conducted for 5-15 min, and a material A is obtained; 2, a carrier thread group is formed by multiple 3300D yarn and enters a mold; 3, heating melting is conducted on the material A, and then the melted material A is extruded to the mold through an extruding machine to be distributed on the outer surface of the carrier thread group; 4, cooling and sizing are conducted sequentially, and finally reeling is conducted after drawing is conducted. According to the production technology of the high-strength packing strap, the tensile resistance is strong, and the use cost is low.

The invention relates to a method for oxidizing a semidry desulfurization product containing calcium sulfite. The method is characterized in that high-temperature solid thermal carriers are taken as an initial heat source, and oxidizing, waste heat recovery after the oxidizing and cooling are completed in a fluidized bed; smoke is generated when a combustion furnace burns coal or gas and exchanges heat with the solid thermal carriers in a gas-solid heat exchanger; high-temperature solid thermal carrier particles enter an oxidation fluidized bed through a J-shaped valve, the semidry desulfurization product to be oxidized is fed into the oxidation fluidized bed twice, partial raw materials are fed into a J-shaped valve outlet to be mixed with the solid thermal carriers, and the residual raw materials are fed from the middle of the oxidation fluidized bed. Oxidation-fluidization air is supplied from the bottom of the oxidation fluidized bed, materials which flow out from the bottom of a discharge end of the bed are lifted to enter a cyclone separator, coarse-grained solid thermal carriers are separated out and fed back to the gas-solid heat exchanger to be recycled, and gas and fine powder are lifted back to the oxidation fluidized bed. The high-temperature product which is completely oxidized flows into a cooling heat exchange fluidized bed.

The invention discloses a flow control sealing mechanism and a yarn hairiness detection method based on the same. A circular spray pipe and a circular suction pipe right below the same are arranged ina shade of the flow control sealing mechanism; the circular spray pipe is provided with a plurality of nozzles which open downward; the circular suction pipe is provided with a plurality of nozzles which open upward. The flow control sealing mechanism and the yarn hairiness detection method based on the same have the advantages that the flow control sealing mechanism ensures cleanliness of an instrument test zone during testing, lodging of hairs is never caused due to air resistance, tips of hairs and yarn shanks are freely stretched, and therefore, image quality is improved and accuracy of test results is guaranteed; a central control system ensures action phase difference precision for a power supply source and an image acquirer; detection state is truly provided for moving yarns duringoperating, and reliable dynamic instrument state detection can be performed after static calibration; a light source has a high duty ratio, so that the heat problem is avoided.

The invention relates to the filed of semiconductor manufacturing, in particular to a method for selectively growing nickel. The nickel with required thickness is deposited in a silicon area by means of the method for selective nickel plating and no nickel is formed in a silicon oxide or silicon nitride area so as to guarantee that the nickel with required thickness is deposited in the silicon area and meanwhile damages such as organic contamination and the like cannot be caused.

The invention discloses a manufacturing method for a multifunctional insulating tube. The multifunctional insulating tube is composed of an insulating tube body and a coating for coating the outer layer of the insulating tube, wherein the matching of the coating is as follows according to the weight percentage: 48 percent of tetraethylortho silicate, 14 percent of ethyl alcohol, 6 percent of water, 0.5 percent of hydrochloric acid, 0.2 percent of a silane coupling agent, 14 percent of polyurethane, 14 percent of a pigment filler, and 3.3 percent of a cellulose additive. Through the way, the insulating tube made through the manufacturing method of the multifunctional insulating tube, provided by the invention, is excellent in radiation resistance, is prevented from being stained with water, still can ensure operating temperature under swelter and bitterly cold conditions, is prevented from stains, and is also excellent in electric insulativity and elasticity.

The invention overcomes the defects in the prior art, and provides a washing type cleaning tissue. The tissue comprises upper paper, lower paper, a water storage bag and interleaving paper, the waterstorage bag and the interleaving paper are arranged from top to bottom between the upper paper and the lower paper in turn, and four edges of the upper paper, lower paper and interleaving paper are inpressure-tight sealing connection; the upper surface of the water storage bag is fixedly provided with a digging rope, and one end of the digging rope is movably exposed from the edge of the tissue.Disinfectant water is in the water storage bag; the upper paper is provided with a plurality of amboss or protrusions. The upper paper, lower paper and interleaving paper all are soluble paper, the amboss is uniformly distributed, or the protrusions are uniformly distributed, the disinfectant water can be essential oil water, peppermint water or medical disinfectant water, the interleaving paper can have one layer or multiple layers, the tissue has better cleaning performance and can be dispersed, the wettability is high, the quality is superior, and it is convenient to carry.

The invention provides a chip mounting method, and the method comprises the steps: providing a lead frame which comprises a chip mounting region; providing a mask, wherein the mask comprises an opening corresponding to the loading area; covering the mask to the upper part of the lead frame, wherein the chip mounting area is exposed from the opening; silver colloid is provided, the upper portion of the mask is coated with the silver colloid, and the silver colloid enters the chip loading area from the opening; the mask is removed; providing a chip, and attaching the chip to the elargol in the chip mounting area; wherein the silver content of the silver colloid ranges from 80% to 90%, and the viscosity of the silver colloid ranges from 40000 cps to 80000 cps; the opening comprises a plurality of mutually connected side edges, and each side edge is bent or bent towards the interior of the opening.

The invention relates to an inverted daily washing storage box. The inverted daily washing storage box comprises an inverted daily washing storage box body, an executing mechanism, a control system and a command input device, wherein an inverted daily washing storage box cavity with a drainage hole is formed in the inverted daily washing storage box body; the executing mechanism is arranged in thedrainage hole and is used for regulating the drainage hole to be in a drainage state to drain or in a closing state to store water; the control system is electrically connected with the executing mechanism and is used for controlling the executing mechanism to regulate the drainage hole to be in the drainage state or the closing state; and the command input device is arranged outside the inverteddaily washing storage box cavity, is electrically connected with the input end of the control system and is used for commanding the control system to control the executing mechanism so as to regulatethe drainage hole to be in the drainage state or the closing state. According to the inverted daily washing storage box provided by the invention, the command input device controlling the executing mechanism to regulate the drainage hole to be in the drainage state or the closing state through the control system is arranged outside the inverted daily washing storage box cavity.

The invention discloses an insulation glove with a testing information tag card bag. The card bag is arranged on the insulation glove. The front face of the card bag is transparent. The card bag is made of wear-resisting, anti-fouling and waterproof materials, and can be fixedly stuck to the surface of the insulation glove. An opening is formed in one side of the card bag. Sealing is achieved through self-sealing of a clamping chain, the tag is placed into the card bag during replacement, the purpose of being easy to replace, attractive and practical is achieved, and meanwhile the tag is protected against abrasion and stain during daily work.

A novel polyolefin textile fabric knitted woven and non-woven that in one aspect of the invention is disperse dyed to a light, medium or deep solid hade. In another aspect, the textile fabrics of the present invention are manufactured using polyolefin yarns that contain variable amounts of dye acceptor additives. A fabric with more than one tone of a color is dyed in a single dye bath. The fabrics and yarn using this invention can be processed using conventional spinning, weaving, knitting, web forming machines and will dye using existing dyeing and finishing systems. This invention is of particular value in the apparel and home furnishings industry.

The invention provides a manufacturing method for an oleophilic non-stick cooker, belongs to the technical field of cookers, and solves a problem that carcinogens harmful to a human body are generatedduring a production or using process of an existing non-stick cooker. The manufacturing method for the oleophilic non-stick cooker comprises the following steps of a, preparing the cooker, namely preparing a molded cooker body; b, carrying out hard anodic oxidation treatment, namely carrying out hard anodic oxidation treatment on the surface of the cooker body in order to form a hard anodic oxidation film; c, burning, namely carrying out burning treatment on the hard anodic oxidation film on the cooker body by adopting flame with the combustion temperature of at least 1200 DEG C; d, coveringwith an oil layer, namely keeping the cooker body in a set high temperature state, and covering the surface of the hard anodic oxidation film subjected to burning treatment with edible oil; and e, cooling, namely cooling the cooker body to the room temperature. The manufacturing method for the oleophilic non-stick cooker has an advantage of good safety.

The invention provides a refrigerator, comprising a box body, an upper refrigerating compartment / lower refrigerating compartment, an upper door, a drawer, a drawer door, a driving system for driving the drawer door to automatically open, and an induction switch, which is arranged at the bottom of the upper door , there is a hidden handle on the top of the drawer door, and the effective sensing area of ​​the sensor switch is located in the dark handle or on the front side of the dark handle; the refrigerator also includes a reminder; when the sensor switch is in the working state, the sensor switch can detect that the trigger is placed The trigger signal sent in the effective sensing area starts the drive system and the prompter; when the sensing switch is in the closed state, the sensing switch does not detect the trigger signal sent by the trigger being placed in the effective sensing area, or the sensing switch detects the trigger The trigger signal is sent when the object is placed in the effective sensing area, but the drive system and the prompter are not started. Therefore, the refrigerator can prevent the sensor switch from being stained, and can also send a prompt message to inform the user when the sensor switch is triggered.

The invention discloses a real-time water sample acquiring system which comprises a towed body arranged in a sampling water area, a water sampling pipe, a water sampling device, a hydrological parameter detector and a location device, wherein the water inlet end of the water sampling pipe is arranged on the front end of the towed body; the water sampling device is communicated with the water outlet end of the water sampling pipe, and is used for acquiring a water sample through the water sampling pipe; the hydrological parameter detector is used for detecting hydrological parameters of the sampling water area; and the location device is used for obtaining geographical location information of the sampling water area. The real-time water sample acquiring system can be used for acquiring a water sample suitable for trace analysis, can continuously work when a ship is in a sailing state and can also be used for recording hydrological data and location information of the water sample in real time. The invention also provides a real-time water sample acquiring method. According to the invention, hydrological data such as temperature, salinity and depth are monitored in real time while the water sample is acquired, and a real-time and synchronous water sampling sailing track is obtained through a global positioning system and data acquisition. The system and the method meet the requirement of trace analysis sampling and dynamic continuous sampling and further provide detailed real-time sailing track and hydrological information.

The invention provides a manufacturing method for an oleophilic non-stick cooker, belongs to the technical field of cookers, and solves a problem that carcinogens harmful to a human body are generatedduring a production or using process of an existing non-stick cooker. The manufacturing method for the oleophilic non-stick cooker comprises the following steps of a, preparing the cooker, namely preparing a molded cooker body; b, carrying out hard anodic oxidation treatment, namely carrying out hard anodic oxidation treatment on the surface of the cooker body in order to form a hard anodic oxidation film; c, burning, namely carrying out burning treatment on the hard anodic oxidation film on the cooker body by adopting flame with the combustion temperature of at least 1200 DEG C; d, coveringwith an oil layer, namely keeping the cooker body in a set high temperature state, and covering the surface of the hard anodic oxidation film subjected to burning treatment with edible oil; and e, cooling, namely cooling the cooker body to the room temperature. The manufacturing method for the oleophilic non-stick cooker has an advantage of good safety.

The invention relates to a marking pen with a bent holding portion and a clamped ink tube. The marking pen with the bent holding portion and the clamped ink tube comprises a penholder, the bent holding portion, a front sleeve, a fiber writing portion, a fiber ink guide core, an ink guide component and the clamped ink tube, wherein the bent holding portion is arranged at one end of the penholder, the fiber writing portion is penetratingly arranged in the front sleeve which is arranged at one end of the holding portion, the fiber ink guide core is arranged in the holding portion and connected with the writing portion, and the clamped ink tube is in sleeved connection with the ink guide component which is connected with the ink guide core. One end of the ink guide component can be pushed to break an ink seal mechanism on the clamped ink tube to enable ink to flow into the ink guide core through the ink guide component, so that the ink guide core and the writing portion can absorb the ink to facilitate writing. The marking pen is mainly characterized by comprising the clamped ink tube structure for the bent marking pen. Therefore, users can write smoothly at different use places and with better visual field, the ink tube can be quickly mounted and demounted with no hand stained by ink, and the marking pen is reusable, so that resource waste and expenditure are reduced.

The invention relates to an inkstone with steps, which comprises the steps, an inkstone body, an inkstone wall, an outer wall and legs. The three steps are disposed in the middle of the inkstone body, and a bent circle is disposed at an ink splashing position of each step. The inkstone with the steps has the advantages that ink can be splashed on the steps by the aid of a nib of a writing brush, the outer wall of the inkstone cannot be stained, the ink cannot be wasted, time is saved, efficiency is improved, and the inkstone is simple in structure, low in manufacturing cost and high in practicality.

The invention relates to an LED (Light Emitting Diode) chip manufacturing technology, an LED chip structure and an LED chip packaging structure. According to the manufacturing technology, wolfram-molybdenum-copper alloy (WMoCu) is used as a substrate. The wolfram-molybdenum-copper alloy substrate is a good choice for a high-power LED chip heat dissipation substrate as the wolfram-molybdenum-copper alloy substrate has the thermal conductivity second only to that of a silicon carbide substrate, the cost of the wolfram-molybdenum-copper alloy substrate is far lower than that of the silicon carbide substrate, and meanwhile the wolfram-molybdenum-copper alloy substrate has the advantages of high temperature resistance, low expansion factor, high specific heat capacity, good mechanical machining property, easiness in manufacturing of mirror surfaces and the like. An LED chip in the invention sequentially comprises a wolfram-molybdenum-copper substrate layer, a U-GaN buffer layer and a N-type GaN layer from bottom to top, wherein an InGaN / GaN multiple-quantum well luminous layer and an N-electrode are arranged on the surface of the N-type GaN layer, and a P-type AlGaN layer, a P-type GaN layer, a current expanding layer and a P-electrode are also sequentially arranged above the InGaN / GaN multiple-quantum well luminous layer. Correspondingly, the LED chip has the advantages that the currents of the LED chip are vertically distributed, the substrate has high thermal conductivity and high reliability, the back surface of the luminous layer is a metal reflecting mirror, the surface has a coarsening structure, and the extraction efficiency is high.

The invention discloses a photosensitive chip packaging part and a manufacturing method thereof and belongs to the technical field of semiconductor packaging. The photosensitive chip packaging part comprises a base island, pins, a chip, a transparent adhesive and a plastic packaging material; the base island is provided with a groove and a box dam; the transparent adhesive is arranged in the groove and the box dam; the pins are electrically connected with the chip; the plastic package material wraps the upper part of the base island, the upper parts of the pins, electrical connection parts andthe chip. According to the photosensitive chip packaging part and the manufacturing method thereof of the invention, half-etching is performed on the upper part of a base material, so that the upperparts of the base island and the pins are formed; the upper part of the base island is treated, so that the groove and the box dam can be formed; the transparent adhesive is added into the groove andthe box dam, so that the photosensitive area of the chip is attached to the transparent adhesive, and the chip is connected with the pins; the liquid transparent adhesive is cured, and plastic packaging is performed by using the plastic packaging material; and semi-etching is carried out on the lower part of the base material, so that a photosensitive through hole can be formed. The invention aimsto solve the problem of failure to realize the photosensitive characteristic of the chip caused by the fact that the plastic packaging material can stain the transparent adhesive can be solved; the transparent adhesive can be prevented from being stained; and the photosensitive characteristic of the chip can be realized.

The invention relates to a marking pen with a bent holding portion and a clamped ink tube. The marking pen comprises a penholder, the bent holding portion arranged at one end of the penholder, a front sleeve arranged at one end of the holding portion, a fiber-made writing portion penetratingly arranged in the front sleeve, a fiber-made ink feeder arranged inside the holding portion and connected with the writing portion, an ink guide component connected with the ink feeder and the clamped ink tube connected with the ink guide component in a sleeved manner. One end of the ink guide component can push away an ink sealing mechanism on the clamped ink tube, ink flows into the ink feeder through the ink guide component, and the ink feeder and the writing portion absorb ink to the benefit of writing. The main design feature of the marking pen is that the marking pen is of the structure with the bent holding portion and the clamped ink tube, the structure can guarantee that a user can write smoothly in different use occasions, has wide visual field and quickly fills the marking pen with the ink and removes the ink without touching the ink with hands, the marking pen is used repeatedly, and the purpose of reducing resource waste and cost and expenditure is achieved.