82results about How to "Avoid unhygienic" patented technology

The invention relates to a contact lenses case capable of cleaning and disinfecting. The contact lenses case comprises a case body composed of a base and an upper cover, wherein one side of the upper cover forms a shaft connection with the base. An interior portion of the case body is provided with lenses storage cases, a tweezers, a lenses cleaning apparatus and a carriage for bearing the lenses storage cases and the tweezers. An inner wall of the upper cover is provided with an LED deep ultraviolet radiation source for disinfecting the lenses and the tweezers. A circuit board assembly and an ultrasonator for cleaning the lenses are arranged below the lenses cleaning apparatus. The lenses cleaning apparatus comprises a lenses cleaning frame and a cleaning tank, wherein the lenses cleaning frame is arranged on the carriage, and the cleaning tank is arranged below the carriage, a lower portion of the lenses cleaning frame passes through the carriage and extends to the interior portion of the cleaning tank. The contact lenses case has advantages of simple and reasonable structure, long service life. According to the LED deep ultraviolet radiation source and the ultrasonator provided by the present invention, the contact lenses can be disinfected and cleaned thoroughly; a disinfecting process and a cleaning process can be completed automatically; time for disinfecting and cleaning is short; and the contact lenses can be cared anytime without time limitation.

The invention relates to a finger wetting ring used for counting of an accountant. The finger wetting ring comprises a ring body which a user can wear on one finger, a containing box is fixed on the ring body, moisture preserving padding is arranged in the containing box, a sealing protective film is arranged on the containing box, and the moisture preserving padding is sponge or non-woven cloth containing moisture preserving liquid. The finger wetting ring has the advantages of being convenient to carry, small in size, clean, sanitary and capable of ensuring counting quality and speed.

The invention discloses an anti-staining toilet cover. A cylinder pushing a lifting device to lift up a water storage device to enable the water storage device to be higher than a toilet body; a motor rotates a rotary screw rod to pull a nut rod to enable a connection rod to be tilted and the water storage device to be toppled over; furthermore, the motor further drives a nut gear to rotate when rotating the rotary screw rod; then due to the meshing transmission between the connection rod meshed with the motor and a bevel gear, a toilet seat cushion is rotated to be lifted up; when water for secondary use stored in the water storage device is poured into the toilet body, the toilet seat cushion is turned up, so that the phenomenon of insanitation due to the fact that the water for secondary use is sputtered to the toilet seat cushion which is not turned up in a scouring process is prevented.

The invention relates to a continuous auto-covering pancake machine comprising a motor, a frame, an oil feeder and an automatic pancake arranger. One side of the frame is provided with the automatic pancake arranger. The driving wheel and a driven wheel are disposed on the upper end face of the frame. The driving wheel is connected with the driven wheel through a chain plate set. An automatic covering device is fixedly connected to the start end of the chain plate set. An automatic opening device is fixedly connected to the stop end of the chain plate set. An automatic pancake discharger is disposed below the automatic opening device. A plurality of pancake plates are disposed on the outer end face of the chain plate set. The pancake plates are movably connected in pairwise groups. The pancake plates are arranged in a circle around the chain plate set. The upper and lower end faces of each pancake plate are provided with heaters. The single-tier line is simple in design; the automatic covering device and the automatic opening device are disposed at the start end and stop end of the chain plate set, the automatic pancake discharger is provided, productivity of the line is improved, and the production process is safer and cleaner.

The invention relates to a container capable of automatically controlling discharge amount of materials therein. The container comprises a rice bucket and a bucket cover which covers the rice bucket, wherein, the bottom of the rice bucket is equipped with a screw rod which is driven by a drive motor and is movably fixed on the wall of the rice bucket; a through hole is arranged on the wall of therice bucket corresponding to the front end of the screw rod; a rice outlet pipe for discharging rice out of the rice bucket is fixed outside the through hole; and a movable door is arranged on an opening of the rice outlet pipe, and opening and closing of the movable door are controlled by a control module arranged on the rice outlet pipe. The container has the beneficial effects that the rice ispushed out of the rice bucket by virtue of the screw rod, and the control module controls push-out of the needed rice by means of the relation between the working time of the drive motor and the diameter of the screw rod so as to fully realize automatic control of the rice supply process; and meanwhile the needed amount of the rice can be obtained by corresponding amount keys, which prevents errors caused by human factors, reduces the middle operation links and avoids unsanitary phenomenon.

The application discloses a urinal. The urinal comprises a urinal wall, a urine containing cavity and a sensor, wherein a water drain outlet is formed in the urine containing cavity, and the urinal wall is of a cylindrical structure; the bottom part of the urine containing cavity is of a funnel-shaped structure; the sensor is arranged right ahead the urinal wall; two sides of the front surface of the urinal wall are provided with right-angle baffle plates; the water drain outlet of the urine containing cavity is provided with a switching valve. According to the urinal disclosed by the invention, the effects that a certain amount of clean water is enabled to be kept in the funnel-shaped structure when the urinal is not used, the situation that the urinal is used by a person can be sensed by the sensor when the urinal is used by the person, urine and water are together flushed away by the action of the sensor and the switching valve after the use, and a certain amount of clean water is kept in the funnel-shaped structure can be achieved due to the arrangement of the sensor; water splashing can be prevented by such a design, and the air environment of a whole bathroom can also be improved.

The invention discloses an environmentally friendly and water-saving closestool cover. A rotary lead screw is turned through a motor, so that a pushing plate arranged on the rotary lead screw pushes a water storage device to rise to be higher than a closestool body and drives meshed drive of a connecting rod and teeth of a bevel gear by turning a rotary gear arranged on the rotary lead screw during rising to rotatably lift a closestool cushion, then a pushing rod is pushed through an air cylinder, so that a sliding head jacks up one side of the water storage device to topple over the water storage device, secondary utilization water in the water storage device is poured into the closestool body for flushing, the secondary utilization water is prevented from being splashed onto the closestool cushion which is turned up during flushing, and thus an unhygienic phenomenon is avoided.

The invention discloses an anti-staining toilet bowl cover for a toilet bowl. A rotating screw rod is rotated through a motor to enable a lifting nut to drive a pressing block to press down from a second water area so that recycled water stored in a water storage device can be pushed to move to a first water area from the second water area and rush out from an opening of a switch to flush the toilet bowl; besides, when the rotating screw rod rotates, a rotating gear arranged on the rotating screw rod enables a toilet bowl cushion to turn up through rotating connecting rods and bevel gears, and thus the phenomenon that the recycled water splashes to the non-turnup toilet bowl cushion when flushing the toilet bowl, and insanitation is caused is prevented.

The invention relates to a closestool with a closestool coil capable of being automatically upturned, and the closestool comprises a closestool seat, a water tank, a closestool cover, a closestool coil and two fixed seats, wherein one rotating shaft is movably installed on the two fixed seats, the closestool coil is fixedly connected to the rotating shaft, the water tank is provided with a flushing button, the rotating shaft is provided with a rotary firmware, the rotary firmware is provided with a fastening position, the rotary firmware is fixedly provided with a connecting rod, the rotating shaft is provided with at least one torsion spring which is used for pushing the closestool coil onto the closestool cover, and two ends of each torsion spring are respectively connected with the rotary firmware and one fixed seat. The closestool seat is provided with a fastening device which is matched with the fastening position to use, the fastening device is arranged between the water tank and the rotating shaft, and the fastening device is linked with the flushing button; and the side wall of the water tank is movably provided with a damping device. Through the improvement, the closestool coil can be automatically upturned only by pressing the flushing button, so that simplicity and convenience in use can be realized.

The invention belongs to the technical field of milk powder can cleaning devices and provides a milk powder can cleaning machine. The milk powder can cleaning machine comprises a conveying device and a can clearing device. The conveying device comprises a rack provided with a can inlet, and a conveying belt driven by a power device is arranged on the rack; and one side of the rack is provided with a pushing mechanism, the other side of the rack is provided with a can outlet corresponding to the pushing mechanism, and the end, away from the can outlet, of the rack is provided with a can blocking plate. The can clearing device comprises an installation frame installed on the rack, a drive motor connected with a transmission mechanism is installed on an upper installation plate of the installation frame, and a sliding plate in transmission connection with the drive motor through the transmission mechanism is arranged between the upper installation plate and a lower installation plate; and a brush roll is rotatably installed on the sliding plate, and the brush roll is provided with an air inlet communicating with an air supplying device through an air tube. The milk powder can cleaning machine is small in size, the clearing efficiency and clearing quality of milk powder cans are greatly improved, and the phenomena that in the conveying process of the milk powder cans, the milk powder cans are damaged, and due to not thorough clearing of the milk powder cans, milk powder containing is insanitary are prevented from occurring.

The invention relates to the technical field of intelligent household electrical appliance control, and specifically relates to a control system for smart home. The system comprises a server which comprises a user information acquisition module which is used for acquiring going-out time of a user and image information of clothes worn when the user goes out; a wear image analysis module used for analyzing the wear image information; a clothes information acquisition module used for acquiring material information of corresponding clothes from the user, supplementing the material information to ato-be-recorded list information of the clothes, and storing the to-be-recorded list information of the clothes in a preset user wearing record database; a clothes marking module used for marking thewearing days of the corresponding clothes in the user wearing record database; a clothes cleaning recommendation module used for recommending the clothes cleaning list information and the cleaning scheme to the user; and a data updating module used for resetting the wearing day number marks of the corresponding clothes in the user wearing record database. The problems that the user does not know how to clean clothes in a classified mode, and consequently the clothes are prone to damage and unhygienic are solved.

The invention discloses a magnetic heating and stirring cup comprising a magnetic stirring base, a cup body, a temperature control knob, a stirring rotor, a cup cap, a power line and a temperature control panel. The stirring rotor is arranged in the independent space of the bottom part of the cup body. The cup body is installed on the magnetic stirring base in a way that the cup body can be freely taken and placed. The temperature control panel is installed on the surface of the magnetic stirring base, and the temperature control knob and the power line are installed at the side edge. The temperature control panel of the bottom part is controlled to heat the drink and keep warm by adjusting the temperature control knob, and the drink is enabled to be uniformly heated by rotation of the magnetic stirring rotor to achieve the designated temperature so that the drink is enabled to be uniformly mixed and uniformly heated. Independent stirring or heating while stirring is performed on the cup through the temperature control knob, and the functions of stirring and heating are intermittently used so that the service life of the magnetic heating and stirring cup can be prolonged, the problems that the function of the stirring cup is single and the stirring mode is inconvenient can be improved, and the hygienic condition of the stirring cup in the use process can be enhanced.

The invention relates to the technical field of traditional Chinese medicine production and discloses a packaging device for traditional Chinese medicine production. The packaging device comprises a supporting base. Supporting columns are fixedly mounted at the left end and the right end of the top face of the supporting base correspondingly, a supporting plate is fixedly mounted at the top ends of the supporting columns, and a quantitative box is fixedly mounted on the bottom face of the supporting plate. Partition plates are fixedly mounted at the left end and the right end of the bottom face of an inner cavity of the quantitative box correspondingly, a turning-over plate is movably mounted at the top ends of the two partition plates through rotating shafts, and telescopic rods located between the inner wall of the quantitative box and the side faces of the partition plates are fixedly mounted on the bottom face of the turning-over plate. According to the packaging device for traditional Chinese medicine production, by arranging two smashing sleeve rods, traditional Chinese medicine is smashed, then filtered through a filter net and guided into the quantitative box to be treatedand packaged, full automation of a machine is achieved in the whole production process, the production and processing efficiency is greatly improved, the insanitation problem caused by manual processing is avoided, and the practicability of the packaging device is improved.

The invention discloses a toilet door lock. The toilet door lock comprises an outer hand-holding panel disposed on the front side of a toilet door, an inner hand-holding panel disposed on the reverseside of the toilet door, a lock body disposed between the outer hand-holding panel and the inner hand-holding panel, a spring bolt groove matched with the lock body and a button battery. The outer hand-holding panel is provided with an indicator light and a handle from top to bottom sequentially, and the inner hand-holding hand panel is provided with a plug board slot; a pedal is arranged below the inner hand-holding hand panel, and the lock body is separately connected to the pedal, the handle and a plug board. The toilet door lock is ingenious in structure design and convenient to use, sanitation and hygiene is achieved, the prompting is conspicuous, and the toilet door lock is suitable for use in public places with a large flow of people.

A mop pool based on the Venturi effect, including a water inlet, a Venturi tube, a washing solvent box, a lip surface, a pool body, a sewage outlet and a high-position siphon, is characterized in that: the water inlet is connected to the inlet section of the Venturi tube, and the Venturi tube The diffusion section is connected to the diversion tube, and the diversion tube is connected to the lip surface and is tangent to the lip surface; the lip surface is round or oval, hollow, and the bottom of the lip surface faces the inner wall of the mop pool with a number of inclined holes; the washing solvent box inlet pipe and The outlet pipes are respectively provided with openings on the inlet section of the Venturi tube and the side wall of the throat section, and intersect with the side wall of the washing solvent box, and a water inlet and outlet switch is provided at the intersection point; It is divided into two spaces that are connected to each other and connected to the water inlet pipe and the water outlet pipe respectively; the top of the washing solvent box is provided with a washing solvent adding port, the diameter of which is smaller than or equal to the diameter of the washing solvent box. The box cover; the bottom of the sewage outlet is connected to the high-level siphon.

The invention discloses a rotating milk powder spoon which comprises a spoon head and a spoon handle. The spoon handle is connected close to the outer side wall of the bottom of the spoon head, a powder outlet is arranged at the bottom of the spoon head, a sealing piece for closing the powder outlet is arranged at the powder outlet, a cavity is arranged on the spoon handle, one end of the cavity is opened at the spoon head, the other end of the cavity is opened on a handheld portion of the spoon handle, and a connecting rod is arranged in the cavity. One end of the connecting rod is fixedly connected with the sealing piece, and the other end thereof is fixedly connected with a shifting piece which is close to the handheld portion of the spoon handle. Compared with the prior art, the rotating milk powder spoon has the advantages that the sealing piece is controlled by the shifting piece and the connecting rod to close and open the powder outlet; milk power is filled into a feeding bottle more conveniently when the rotating milk powder spoon is used; and waste and insanitation are avoided, and the rotating milk powder spoon is convenient and practical.

The invention relates to the field of articles for daily use, and in particular relates to a multifunctional glass cup, comprising a cup body, a cup cover, a filter plug, a float plug device and a juice squeezing device, wherein the float plug device is arranged at the lower part of the filter plug, and the juice squeezing device is arranged on the cup cover; a No.3 flange and a plug accommodating cavity are arranged at the inner side of the cup body; a rotary notch is also arranged on the filter plug; a No.1 cover cavity, a No.2 cover cavity and a juice outlet plate are also arranged at the upper part of the cup cover; the float plug device comprises a float plug rod, a contact ball, a float ball and a connecting rope; and the juice squeezing device comprises a squeezing block and a juice filter screen. The multifunctional glass cup provided by the invention can achieve two effects of drinking tea and squeezing juice without repeatedly taking up the filter plug in a tea cup, thereby being convenient to use. The multifunctional glass cup reduces troubles in use for people, and is more sanitary.

The invention discloses a push-pull milk powder spoon comprising a spoon head and a spoon handle. The spoon handle is connected close to the outer side wall of the bottom of the spoon head, a powder outlet is arranged at the bottom of the spoon head, a cavity is arranged on the spoon handle, one end of the cavity is opened at the spoon head, the other end of the cavity is opened on a handheld portion of the spoon handle, and a connecting rod is disposed in the cavity. One end, penetrating through the cavity, of the connecting rod is fixedly connected with a sealing piece; and the other end of the connecting rod is fixedly connected with a push-pull key. The working principles of the sealing piece include that when the push-pull key is pushed towards the spoon head direction, the sealing piece is pushed by the connecting rod to open the powder outlet; and when the push-pull key is pulled towards the spoon handle direction, the sealing piece is pulled by the connecting rod to close the powder outlet. Compared with the prior art, the push-pull milk powder spoon has the advantages that the sealing piece is controlled by the push-pull key and the connecting rod to close and open the powder outlet; milk power is filled into a feeding bottle more conveniently when the push-pull milk powder spoon is used; and waste and insanitation are avoided, and the push-pull milk powder spoon is convenient and practical.

The invention relates to an electric egg beater taking a solar cell as a power supply source, and belongs to the technical field of new energy applications. The electric egg beater comprises a base, a cup body, a handle, supporting legs, a flow guide hole, a seal ring, a stirring rod, the solar cell, conductive wires, a controller, an energy storage battery, a switch and a motor. The solar cell is used for generating current under the irradiation of sunlight; the current is input to the controller for adjustment through the conductive wire and input to the energy storage battery for storage; egg liquid is poured into the cup body, the switch is pressed down, a circuit between the energy storage battery and the motor is conducted, and the energy storage battery is used for transmitting the current to the motor; electric energy is converted into mechanical energy in the motor, the motor is used for driving the stirring rod to rotate, and a stirring head of the stirring rod is used for stirring the egg liquid in the cup body. According to the electric egg beater, the solar energy is used as the power supply source, so that the environmental pollution is further facilitated; the unsanitary phenomenon easily caused by the egg liquid in a kitchen is avoided and the health is brought to the home life.

The invention discloses a contact lens disinfection box. The contact lens disinfection box comprises a box body composed of a base and an upper cover, wherein a transparent contact lens placement bottle is arranged in the box body, a contact lens placement bottle rotating device is arranged under the contact lens placement bottle, a disinfection device is arranged on one side of the contact lens placement bottle, a timer reminding device is arranged on the upper cover, and the disinfection device, the rotating device and the timer reminding device are connected with a circuit board assembly. An accommodating cavity where the contact lens placement bottle is placed is formed in the box body, a groove is formed below the upper cover, and a care box, tweezers and a small rod are placed in thegroove. A cover board is arranged on the groove, and a mirror is arranged in the cover board. The contact lens disinfection box is simple and reasonable in structure, and through the disinfection device, contact lenses are thoroughly disinfected, so that the situation that a user wears the contact lenses to cause infection is avoided. Disinfection and cleaning processes are automatically completed, moreover, even cleaning and disinfection time is short, and care is not limited by time, and can be conducted at any time.

The invention discloses a scissors-type milk powder spoon which comprises a head and a handle. The handle is fixedly connected to the bottom of the side of the head. The bottom of the head is provided with a powder leak. A seal plate for covering the powder leak is arranged at the powder leak and is fixedly connected with a stem of the seal plate. The stem of the seal plate is hinged to the handle through a pin. Both a handheld part of the stem of the seal plate and a handheld part of the handle are provided with finger rings. The stem of the seal plate is as long as the handle. Compared with the prior art, the scissors-type milk powder spoon has the advantages that closing of the seal plate and opening of the powder leak are controlled by applying force to the two finger rings, charging milk powder into a feeding bottle is more convenient during use of the spoon, waste and insanitation are avoided, and the scissors-type milk powder spoon is handy and practical.

The invention relates to a bath product, in particular to an electric back rubbing device. The electric back rubbing device includes a housing, which is characterized in that: inside the housing are fixed a rechargeable battery, a control circuit and a miniature DC geared motor, and the rotating shaft of the miniature DC geared motor protrudes outside the housing. The end of the rotating shaft is fixed with a back rubbing head, the surface of the back rubbing head is wrapped with a rubbing cloth cover, the housing is provided with a charging socket and a switch, and a detachable extended handle is installed in the middle of the housing. Therefore, the beneficial effects of the present invention are: simple operation, time-saving and labor-saving, people can hold the handle and rub directly to the back, eliminating the inconvenience of asking someone to rub the back, especially the rubbing cover can be replaced freely, avoiding the use of many people Unhygienic phenomenon caused by the same back rubbing device.

The invention discloses a multifunctionalclosestool cover. A rotary lead screw is turned through a motor, so that a nut on the rotary lead screw pushes a connecting block to make a third connecting rod and a fourth connecting rod jack up a pushing plate, a water storage device rises to be higher than a closestool body and drives meshed drive of the connecting rods and teeth of a bevel gear by turning the rotary lead screw during rising so as to rotatably lift a closestool cushion, then a first pushing rod is pushed through an air cylinder, so that a first connecting rod and a second connecting rod upwarp to topple over the water storage device, secondary utilization water in the water storage device is poured into the closestool body for flushing, the secondary utilization water is prevented from being splashed onto the closestool cushion which is turned up during flushing, and thus an unhygienic phenomenon is avoided.

The invention belongs to the technical field of weighing, and relates to an intelligent weighing method and system for agricultural insurance claim settlement, electronic equipment and a storage medium. According to the technical schemes of the invention, the intelligent weighing method for agricultural insurance claim settlement comprises the following steps of: collecting data; cleaning the data; determining the actual size contour of a to-be-measured object; and calculating the weight of the to-be-measured object. The intelligent weighing system for agricultural insurance claim settlement comprises a data acquisition module, a data cleaning module, an actual size contour determination module and a weight calculation module. According to the intelligent weighing method and system for agricultural insurance claim settlement, the electronic equipment and the storage medium provide by the invention, non-contact weighing is realized by utilizing photographing recognition.

The invention discloses an off-ground pile fermentation technology for fermented tea. The off-ground pile fermentation technology for the fermented tea comprises the following specific steps of: making a ground early-stage preparation, carrying out processing that a 30*30 cm vent hole is reserved on the bottom in every 10 meters in a workshop place for preparing the fermented tea, evenly arrangingcement piles on the ground of the place, and placing a wood plate on the top parts of the cement piles; and after 20% of moisture is sprinkled into sunning raw tea, carrying out pile fermentation onthe wood plate, overturning for one time in every three days, continuously overturning for three times, and adding 20% of moisture in sequence according to a situation while overturning is carried outto enable a water content of a pile is 40%. The invention aims to provide a reasonable off-ground pile fermentation technology capable of avoiding insufficient situations, including insanitation, water accumulation, no circulation of bottom layer air, breeding of putrefying bacteria including aspergillus glaucus and the like and also capable of avoiding an insufficient situation that big-pile fermentation can not be carried out by a small box, and moisture flowing caused by excessive pile tide water on the wood plate for the first time can be avoided. According to the fermentation technology,the problems of uneven moisture, uneven dampness and heat and excessive aspergillus niger can be avoided.

The invention discloses a low-noise multifunctional closestool, which comprises a closestool body and a bottom plate, wherein the closestool body is fixedly connected to the bottom plate; a closestoolcover, a closestool cushion and an automatic lifting device are arranged on the closestool body, the output end of the automatic lifting device is movably connected with the closestool cover and theclosestool cushion respectively; the automatic lifting device comprises a first supporting block, a second supporting block, a servo motor, a supporting shaft, a lifting piece and a rotating shaft; wherein the first supporting block and the second supporting block are symmetrically fixed on the closestool; the low-noise multifunctional closestool avoids the unsanitary phenomenon caused by manual lifting, realizes the automatic closure of the closestool cover, thereby reducing the noise of closestool flushing and facilitating people's use, when children use the closestool, through a pedal installed on the closestool body, the device is suitable for the height of children, the children can use the closestool at the safe position relative to the closestool, thereby improving the multifunctional practical performance of the closestool.

The invention discloses a low-noise multifunctional toilet, which comprises a toilet body and a bottom plate. The toilet body is fixedly connected to the bottom plate. The toilet body is provided with a toilet lid, a toilet gasket and an automatic lifting device, and the automatic lifting device outputs The ends are movably connected with the toilet lid and the toilet gasket respectively, and the automatic lifting device includes a first support block, a second support block, a servo motor, a support shaft, a lift piece and a rotating shaft, and the first support block is symmetrical to the second support block Fixed on the toilet, this low-noise multifunctional toilet avoids the unhygienic phenomenon caused by manual lifting, and realizes the automatic closing of the toilet lid, thereby reducing the noise of toilet flushing, which is convenient for people to use. When children use it, The footrest provided on the toilet body is suitable for children's height, so that children can use it in a safe position relative to the toilet, and the multifunctional and practical performance of the toilet is improved.

The invention relates to a smart tea table login system based on an NFC (Near Field Communication) technology. The smart tea table login system comprises a smart tea table, an NFC card reader and an ID (Identification) card, wherein a read-write unit and a trigger unit are arranged in the NFC card reader; a control panel unit, a password unit and a timer unit are arranged in the smart tea table; after the ID card is within a read range of the NFC card reader, the trigger unit is in a triggering state; the timer unit periodically detects the trigger unit; if the trigger unit is in the triggering state, the password unit reads password information of the ID card by the read-write unit, and the timer unit initializes the trigger unit; the password unit compares the password information with a local original password; if the comparison is successful, the control panel unit is opened. According to the smart tea table login system disclosed by the invention, the NFC card reader is arranged in the smart tea table, information in the ID card is read by using the NFC card reader, and a control panel of the smart tea table is directly called out, thereby enabling maintenance personnel to perform system maintenance, and avoiding the condition that the system cannot be maintained due to the fact that persons in public occasions damage a call port.