363results about "Household cleaners" patented technology

The invention relates to the technical field of cleaning equipment, and particularly discloses a steam cleaning machine. The cleaning machine comprises a cleaning machine body, a steam generation system, a cleaning agent conveying device, a waste water suction device, a hot air device and a control device are arranged in the cleaning machine body, the cleaning machine body is connected with a multifunctional integrated spray head through a multi-channel connector and a multi-channel connecting pipe, and the multifunctional integrated spray head is of a multi-layer hierarchical structure. The steam nozzle, the cleaning agent nozzle and the spherical suction head are sequentially arranged from inside to outside; during use, steam and a cleaning agent cooperatively soften and decompose dirt, the wastewater suction device sucks sewage through a spherical suction head of the spray head, the hot air device blows out hot air for drying, and all the systems are controlled by the control device. The cleaning device integrates the functions of steam cleaning, cleaning agent assisting, waste water sucking and hot air drying, achieves closed-loop cleaning, is convenient to operate and high in efficiency, and meets the cleaning requirements of floors, furniture, tabletops, household appliance gaps and the like in families, hotels and other scenes.

The invention provides a self-cleaning method of cleaning equipment and the cleaning equipment. The self-cleaning method of the cleaning equipment comprises the steps that a suction device of the cleaning equipment is controlled to operate for t1 time at first power P1, so that the suction device is in a first state; and the suction device is controlled to continue for t2 in the state that the operation power is smaller than the first power P1, and t2 is smaller than t1, so that the suction device is in the second state. The first power P1 is larger than zero and does not exceed the dirt suction power P0 of the suction device. According to the self-cleaning method provided by the invention, the dirt suction pipeline of the cleaning equipment can be self-cleaned, so that the use experience of a user is improved.

The invention relates to a contact cleaning system and an adhesive roller for a contact cleaning system. The adhesive roller comprises a roller core part and at least one adhesive sheet wound on the roller core part. The or each adhesive sheet includes a leading edge, where the leading edge of one or more of the at least one adhesive sheet includes an indicator, and / or the roller core includes an indicator. A method of forming an adhesive roller is also disclosed, the method comprising the steps of: providing an adhesive substrate material; cutting the adhesive substrate material at a cut line to provide an adhesive sheet; marking the cutting line of the adhesive sheet with an indicator; and winding the adhesive sheet around the roller core.

The invention provides a control method of cleaning equipment and the cleaning equipment. The cleaning equipment comprises a conveying assembly, a connecting assembly communicating with the conveying assembly, a first output assembly communicating with the connecting assembly and a control device. The control device can control the conveying assembly to convey cleaning media in one or a combined state of clean water, cleaning liquid and gas to the first output assembly through the connecting assembly. The control method comprises the following steps: in response to a starting operation of a self-cleaning mode, executing the self-cleaning mode; and under the condition that the self-cleaning mode indicates that the first output assembly is self-cleaned, the connecting assembly is controlled to be connected with the first output assembly, and the conveying assembly is controlled to be started and conveys clear water to the first output assembly until a first preset condition is met, and then the conveying assembly is closed. According to the control method of the cleaning equipment, the output assembly of the cleaning equipment can be self-cleaned, so that the cleaning equipment can stably output the cleaning medium, and the use experience of a user is improved.

The invention provides a control method of cleaning equipment and the cleaning equipment. The cleaning equipment comprises a conveying assembly, a connecting assembly communicating with the conveying assembly, a first output assembly communicating with the connecting assembly and a control device. The control device can control the conveying assembly to convey cleaning media in one or a combined state of clean water, cleaning liquid and gas to the first output assembly through the connecting assembly. The control method comprises the steps of executing a cleaning mode in response to starting operation of the cleaning mode; when the cleaning mode indicates that the first output assembly outputs foam, the airflow is controlled to empty residual liquid in the connecting assembly, then the connecting assembly is controlled to be communicated with the first output assembly, and the conveying assembly is controlled to start to output foam to the first output assembly. According to the control method provided by the invention, residual liquid can be prevented from flowing out when the cleaning equipment outputs foam, so that the user experience is improved.

The utility model discloses a back direct blowing prevention structure of a blowing and sucking dual-purpose machine, which comprises a machine body, a fan cover and an air pipe, the machine body comprises a handle and a main machine shell, the fan cover is rotatably connected with the main machine shell, an air inlet and an air outlet are arranged on two sides of the fan cover, the air pipe is detachably connected with the air outlet, and the air pipe comprises a bent pipe or a straight pipe. The opening direction of the air inlet is parallel to the opening direction of the air outlet, a blocking part is arranged at the rear end of the grip, the fan cover can rotate relative to the main machine shell to the position where the opening of the air inlet faces forwards and the opening of the air outlet faces right backwards, and the air outlet is located below the grip at the position. A containing space used for allowing a bent pipe connected to the air outlet to rotate in is formed between the air outlet and the rear blocking part, the overall length of the straight pipe is larger than the width of the containing space, an identification switch is arranged at the air outlet, and when the air pipe is connected to the air outlet, the identification switch is triggered to be switched on, and the bent pipe is driven to rotate. The rear direct blowing of the air outlet caused by misuse can be prevented.

The utility model discloses a bathtub cleaning device which comprises an overturning body, an overturning driving mechanism, a water outlet piece and a liquid supply system, one end of the overturning body is rotatably installed on one side of a bathtub, the overturning driving mechanism is in transmission connection with the overturning body to drive the overturning body to rotate, the water outlet piece is installed on the overturning body, the overturning body can rotate to a horizontal state, and the liquid supply system is arranged on the overturning body. When the overturning body is in the horizontal state, the water outlet piece is located above the bathtub, the water outlet piece is connected with the liquid supply system through a hose, the water outlet piece is provided with a plurality of water outlet flow channels, and the water outlet flow channels are distributed in a radial shape from the center to the outside. The effect of cleaning the whole bathtub can be achieved only by using one 360-degree scattering water outlet piece, and after cleaning is finished, the overturning body rotates upwards to return to the position on one side of the bathtub and is vertically stored, so that the bathtub can enter and exit conveniently, and volume water is prevented from being overturned.

The present invention is an advanced spider web cleaning brush that enhances the efficiency and convenience of removing spider webs and debris from various surfaces. It comprises a hemispherical brush mounted on an axial rod connected to a rotating collar driven by a motor. The brush features flexible or rigid bristles made of plastic or cloth for effective cleaning. The pole includes telescoping sections and articulating joints for adjustable length and flexibility, enabling access to hard-to-reach areas. A control switch on the pole operates the motor, which can be powered by a rechargeable battery or an electric connection. Additionally, the invention incorporates a liquid supply system for applying cleaning solutions or insecticides during operation. This design offers significant improvements in cleaning efficiency, user convenience, and overall effectiveness in maintaining cleanliness and hygiene in both residential and commercial settings.

The invention relates to a base station operation method and a base station, the base station comprises a base and a handheld cleaner detachably connected with the base, and under the condition that the handheld cleaner is detached from the base, the handheld cleaner is independently used for cleaning a to-be-cleaned surface; and under the condition that the handheld cleaner is connected with the base, the handheld cleaner and the base are jointly used as a base station matched with the cleaning equipment for use. According to the scheme, the base station of the cleaning equipment and the handheld cleaner are integrated, the function of independently cleaning the surface to be cleaned can be achieved, the function of recycling the cleaning equipment can also be achieved, and a three-dimensional cleaning product from the ground to the space is obtained. Therefore, accumulation of products in space can be reduced, and the utilization rate of home space is improved.

A handheld steam cleaning machine comprises a main machine shell which is provided with a handheld part and a steam outlet nozzle; a water inlet is formed in the upper end of the water tank; the lower end of the steam generator is provided with a water inlet, and the upper end is provided with a steam outlet; a water outlet of the water tank is connected and communicated with a water inlet of the steam generator through the water inlet pipeline; a steam outlet of the steam generator is connected and communicated with the steam outlet nozzle through the steam outlet pipeline; the electric on-off device is located in the main machine cavity and acts on the water inlet pipeline so as to block or connect the water inlet pipeline; the circuit board is electrically connected with the electric on-off device and the steam generator; and the switching mechanism is arranged on the handheld part and is in control connection with the circuit board. According to the scheme, the water tank and the steam generator are of a split structure, part of water is conveyed into the steam generator from the water tank to be heated and produce steam during use, the steam outlet heat efficiency is improved, and the heating time is shortened.

The utility model provides a dining table structure convenient to clean. The dining table structure convenient to clean comprises a table top. The utility model relates to a dining table structure convenient to clean, which is characterized in that sliding blocks are mounted on two sides of a table top, a cleaning plate is inserted between the two groups of sliding blocks, the length of the cleaning plate is the same as the width of the table top, the bottom of the cleaning plate is of a conical structure, and the bottom of the cleaning plate is in contact with the top of the table top. The sliding block is connected with a screw sleeve through a connecting plate, the screw sleeve is installed on a lead screw, a motor is connected to the side face of the lead screw, and meanwhile, a mounting groove used for sleeving a garbage bag is formed in the left side of the table top. The food waste on the table top can be pushed leftwards and falls into the garbage bag in the mounting groove, so that a user does not need to manually sweep the garbage into the garbage bag, the time of the user can be saved, and the table top is suitable for large-scale banquets.

The bathroom mirror cabinet convenient to store comprises a cabinet shell, a mirror is fixedly connected to the front end of the cabinet shell, demisting assemblies are arranged at the positions, located at the upper end and the lower end of the mirror, of the front end of the cabinet shell, an insertion opening is formed in one side of the cabinet shell, a storage cabinet is arranged on the insertion opening, and a fixing assembly is arranged at the bottom end of the cabinet shell. A plurality of supporting plates are fixedly connected to the interior of the storage cabinet, and drainage assemblies are arranged on the supporting plates. According to the mirror cabinet, mist generated on the surface of the mirror is removed through the demisting assembly, the situation that the mirror cannot be used due to mist shielding is avoided, the storage cabinet drawn out of the cabinet shell is fixed through the fixing assembly, the storage cabinet is prevented from sliding, and due to the design, a user does not need to frequently open and close the mirror cabinet when needing to frequently take articles in the storage cabinet.

The application relates to the technical field of intelligent household appliances. A method, device, storage medium and cleaning equipment for foreign matter cleaning are disclosed. The method comprises the following steps: acquiring feature information of an article to be cleaned; drawing a feature image of a current surface of the article to be cleaned according to the feature information; and cleaning the article to be cleaned according to the feature image of the article to be cleaned. According to the application, the feature information of the article to be cleaned is acquired first, and then the feature image of the current surface of the article to be cleaned is drawn according to the feature information, so that the feature image is used as a measurement index for judging whether the cleaning process is completed. Compared with the scheme in the prior art that whether the surface is clean is judged only by naked eyes, the comprehensiveness of cleaning is ensured, and the situation that a dead angle is missed or cleaning is forgotten does not occur. Therefore, the overall cleaning effect is improved.

The utility model provides a fabric machine convenient for a negative pressure fan to discharge air, which comprises a shell component and a negative pressure fan component, and further comprises a housing, an air outlet channel is formed in the shell assembly, and an air outlet hole set communicating with the air outlet channel is formed in the side wall of the shell assembly. An air guide channel is formed in the shell assembly, the lower end of the negative pressure fan assembly is inserted into the air guide channel, the negative pressure fan assembly is covered with the housing, the air outlet channel communicates with one side of the air guide channel and is located on one side of an air outlet of the negative pressure fan assembly, and an air inlet channel is formed in the shell assembly. One end of the air inlet channel extends to the bottom of a waste water tank in the fabric machine and communicates with an air extraction opening of the waste water tank, and the other end of the air inlet channel extends to the bottom of the air guide channel and vertically corresponds to an air inlet of the negative pressure fan assembly. According to the utility model, the negative pressure fan assembly can smoothly extract air in the waste water tank and discharge the air out of the shell assembly.

The invention discloses a control method and device for a wall-climbing cleaning robot with a crossing function, and relates to the technical field of wall-climbing cleaning robots. In the cleaning process, when a step structure is encountered, PID controller parameters of a lifting mechanism, a rotating mechanism and an adsorption mechanism and data of all sensors and actuators are initialized, the lifting mechanism, the rotating mechanism and the adsorption mechanism are dynamically adjusted through a PID controller to complete the crossing action, and the lifting mechanism and the adsorption mechanism are reset after the crossing action is completed. Cleaning is continued after the cleaning state is recovered; by the adoption of the control method and device for the wall-climbing cleaning robot with the crossing function, multi-plane continuous cleaning can be conducted, the cleaning speed is high, the robot can flexibly move on the surface of a metro platform screen door, and it is guaranteed that the robot stably works on the vertical wall face in the moving and crossing process.

The utility model discloses a handheld hair cleaner convenient to replace a hair collecting roller, which comprises a fixing frame and the hair collecting roller, the fixing frame comprises a handle, a cross beam, a first front arm and a second front arm, and an elastic piece is arranged between the cross beam and the second front arm; a first connector is arranged on the inner side of the first front arm, and a second connector is arranged on the inner side of the second front arm. The hair collecting roller comprises a cylindrical supporting body and at least one hair collecting layer on the periphery of the cylindrical supporting body. The first end part and the second end part of the barrel-shaped supporting body are rotatably connected between the first interface and the second interface respectively; under the acting force of the elastic piece in the first direction, the first connector and the second connector can support the hair collecting roller; the second front arm is pulled in the opposite direction to overcome the first-direction acting force of the elastic piece, the second connector is far away from the first connector along with the second front arm, the second end of the hair collecting roller is separated from the second connector, and therefore the hair collecting roller can be separated from the fixed part, replacement operation is greatly simplified, and use convenience and efficiency are improved.

The hair sticking device comprises a handle assembly and a paper tube detachably connected with the handle assembly, the handle assembly comprises a handle and a support connected to the lower end of the handle, the support comprises a first connecting arm and a second connecting arm, the first connecting arm and the second connecting arm are symmetrically arranged, and the second connecting arm is connected with the support through a locking assembly. The locking assembly is used for locking the second connecting arm on the handle so as to cooperate with the first connecting arm to clamp the paper tube, and the locking assembly comprises a button which is used for unlocking the locking assembly so as to enable the second connecting arm to be transversely far away from the first connecting arm; after the locking assembly is unlocked, the first connecting arm is always kept connected with the support. According to the scheme, the structure of the handle assembly of the hair sticking device is improved, the locking assembly is arranged, the locking state and the unlocking state of the second connecting arm are achieved, the convenience, the structural reliability and the use experience of paper tube replacement of a user are improved, and the core pain points that in the prior art, disassembly and assembly are tedious, and parts are prone to being lost are solved.

The present disclosure provides a surface cleaning apparatus (10) that includes steam delivery. The apparatus (10) includes a body (12) potentially adapted to be hand-carried by a user, the hand-carried body (12) including a supply tank (18), a recovery tank (30), a liquid supply pump (50), a steam supply pump (54), a heater (26), and a suction source (34) including a vacuum motor (36). A flexible hose (32) is mounted to the body (12) and a hand-held cleaning tool (22) is mounted to an end of the hose (32). A dispensing control (338) to control opening and closing of liquid and steam dispensing valves (58, 60).

The present invention relates to a contact cleaning system and an adhesive roll 202 for a contact cleaning system. The adhesive roll includes: a roll core 208, and at least one adhesive sheet 204 wound over the roll core. The or each adhesive sheet comprises a leading edge 206, wherein the leading edge of one or more of the at least one adhesive sheets comprises an indicator 209a, and / or the roll core comprises an indicator. The indicator may be a fluorescent or a phosphorescent indicator. The contact cleaning system may comprise a detector (116, fig. 1) configured to detect a position of the indicator as well as an adhesive sheet removal device (110, fig. 1). A method of forming an adhesive roll is also disclosed, including the steps of: providing an adhesive substrate material; cutting the adhesive substrate material at a cut line to provide an adhesive sheet; marking the cut line of the adhesive sheet with an indicator; and winding the adhesive sheet about a roll core.

The utility model discloses an intelligent cleaning robot with a flexible anti-collision device, which comprises an intelligent cleaning robot main body, and a support framework is sleeved on the outer wall of the intelligent cleaning robot main body. When the flexible anti-collision intelligent cleaning robot is used, the outer wall of the intelligent cleaning robot body is sleeved with the supporting framework, and the elastic buffering effect of the anti-collision annular air bag pieces which are arranged at the top and the bottom of the supporting framework and are in the protruding state is utilized, so that the intelligent cleaning robot body can achieve good flexible anti-collision protection on dynamic obstacles; according to the intelligent cleaning robot, collision injury to people or animals caused by the intelligent cleaning robot can be avoided, an annular rubber strip is embedded in the outer side wall of an anti-collision annular air bag piece, an annular piezoresistor is installed in the annular rubber strip, when collision occurs, the anti-collision annular air bag piece is pressed in a certain direction, the resistance value of a corresponding area is changed, and the collision damage to the human body or animals is avoided. And the collision direction is positioned and the collision strength is determined by calculating and analyzing the current difference through the controller.

The invention discloses a shower door cleaning accessory device and a shower door, the shower door cleaning accessory device comprises a frame and a moving rod, the frame is used for being connected with a frame of a door body and is provided with a receding area corresponding to a glass area of the door body, the moving rod is arranged in the receding area, and one side, facing the door body, of the moving rod is provided with a cleaning adhesive tape; the moving rod extends in the up-down direction or in the left-right direction, and the two ends of the moving rod are in sliding fit with the frame so that the moving rod can move in the receding area and can scrape water drops attached to the rear side of the door body through the cleaning rubber strip. When the shower door cleaning accessory device is used, the shower door cleaning accessory device is arranged on the rear side of the door body, when water drops are attached to the rear side of the door body and need to be cleaned, the movable rod can be operated to move, the water drops attached to the rear side of the door body are scraped off through the cleaning rubber strip on the movable rod, and therefore the rear side of the door body can be rapidly wiped and cleaned, operation is easy and convenient, and practicability is high. And the cleaning efficiency and the use experience of the user are improved.

The portable hair sticking device comprises a telescopic handle assembly and a hair sticking assembly detachably connected with the handle assembly, the handle assembly is telescopically inserted into an inner ring of the hair sticking assembly, the hair sticking assembly is rotationally connected with the handle assembly, and the lower end of the handle assembly is connected with a detachable bottom cover. The bottom cover limits and connects the hair collecting assembly to the handle assembly so as to prevent the hair collecting assembly from being separated from the handle assembly, and the hair collecting assembly can be separated from the handle assembly after the bottom cover is detached. Through the nesting design of the telescopic handle and the hair collecting assembly, the size of the hair collecting device is obviously reduced when the hair collecting device is stored, the hair collecting device is convenient to carry about or hang and store, and the packaging and transportation cost is reduced. By arranging the detachable bottom cover, rapid separation of the hair collecting assembly and the handle assembly is achieved, disassembly and assembly are convenient, a user can independently clean the hair collecting assembly or replace the hair collecting assembly, the overall service life of the hair collecting device is prolonged, and the overall replacement frequency is reduced. Meanwhile, due to the limiting effect of the bottom cover, the connecting stability of the hair collecting assembly is ensured.

The invention discloses a civil air defense door opening and closing device, and relates to the technical field of civil air defense engineering, the civil air defense door opening and closing device comprises a floor, a plurality of door bodies are slidably connected to the top of the floor, a plurality of wall bodies are fixedly connected to the top of the floor, a plurality of supporting columns are rotatably connected to the top of the floor, and servo motors are arranged in the wall bodies; the output end of the servo motor is provided with an expansion sleeve coupler, a harmonic reducer and a ball screw, a fixing frame is installed on the outer surface of the ball screw, the outer wall of the ball screw is in threaded connection with a lead screw nut, a guide wheel is installed at the bottom of the door body, and a cleaning assembly is arranged at the output end of the servo motor. According to the civil air defense door opening and closing device, rapid opening and closing of a door body are achieved through a transmission chain of the servo motor, the expansion sleeve coupler, the harmonic reducer and the ball screw, dual drive from electric drive to manual drive is achieved through an interlocking structure, the functions of rapid response, synchronous stability and emergency reliability are achieved, and the opening and closing requirements of a civil air defense door are met.

A pet hair removal apparatus has a plurality of engagement members. The apparatus operates in a plurality of different operational engagement position in which different engagement members contact the surface to remove pet hair from the surface depending on which operational engagement position the apparatus is positioned. The pet hair removal apparatus may be formed through a coextrusion process to form the resultant shape of the pet hair removal apparatus using multiple different materials to form the engagement members and a body thereof.

The invention relates to a cosmetic hand-held device comprising a handle piece, which extends along a longitudinal axis, and a rolling body, which is mounted at a head end of the handle piece so as to be rotatable about an axis of rotation and which has a lateral surface provided with an adhesive. The rolling body is fitted onto a bearing-axis shaft which, as seen in relation to the longitudinal axis, extends in a radial direction from the head end of the handle piece and bears the rolling body in a rotatable manner such that the axis of rotation runs at an angle to the longitudinal axis.

The invention provides a cleaning tool for an escalator. The cleaning tool can switch the running direction of the escalator in the cleaning process. The cleaning tool for the escalator is provided with a supporting part which is detachably arranged on an inner side plate of the escalator; the brush part is used for cleaning steps of the escalator; a rotating part capable of rotating around a rotating shaft extending parallel to the width direction of the step from the supporting part; the rotating portion connects the support portion and the brush portion such that the interval between the rotating shaft and the brush portion is freely increased or decreased within a range of a predetermined interval or less.

An apparatus for applying a liquid detergent to a fabric, comprising a detergent tank for containing the liquid detergent and an application surface which in use contacts the fabric and includes an outlet provided thereon such that the liquid detergent is dispensed onto the fabric through the application surface, the apparatus including first and second unit dose dispensers between the tank and the application surface, and wherein the first and second unit dose dispensers are provided at opposite ends of a rocking member such that when the user presses and compresses the apparatus in a first direction, the first unit dose dispenser discharges a unit dose of the liquid detergent while the second unit dose dispenser is filled from the liquid detergent tank, and when the apparatus is pressed and compressed in a second direction substantially opposite to the first direction, the second unit dose dispenser discharges a unit dose of the liquid detergent while the first unit dose dispenser is filled; and a method for treating a fabric, comprising using such an apparatus, filling the detergent tank with the liquid detergent, placing the apparatus on the fabric and pressing the apparatus to dispense the liquid detergent onto the fabric and apply the detergent to the fabric.

The utility model discloses a dirt circulation assembly and a cleaning device, the dirt circulation assembly comprises a cleaning source pipeline and a dirt suction pipeline, one end of the cleaning source pipeline is connected with a cleaning source, and the other end of the cleaning source pipeline is a cleaning source outlet. The dirt suction pipeline is arranged on the outer side of the cleaning source pipeline, the dirt suction pipeline and the cleaning source pipeline are independently arranged, the dirt suction pipeline is provided with a smooth inner surface, one end of the dirt suction pipeline is a dirt discharge port, and the other end of the dirt suction pipeline is a dirt suction port. According to the sewage circulation assembly, the sewage suction pipeline is arranged on the outer side of the cleaning source pipeline, the sewage suction pipeline and the cleaning source pipeline are independently arranged, and the influence of the cleaning source pipeline on the sewage suction pipeline is avoided. Meanwhile, the dirt suction pipeline is arranged to be a smooth inner surface, accumulation of hair dirt in the dirt circulation pipeline is reduced, and the cleaning effect is improved.

The invention discloses a sewage tank and cloth cleaning equipment, and belongs to the technical field of cleaning equipment.The sewage tank comprises a sewage tank body, a water inlet is formed in the top of the sewage tank body, a water outlet pipeline is installed at the bottom of the sewage tank body, and a valve is arranged on the water outlet pipeline; a filter frame is slidably mounted in the sewage tank body in the vertical direction, a floating plate is mounted at the bottom of the filter frame, a mounting box is arranged on one side of the sewage tank body, a first through groove communicated with the mounting box is formed in the side face of the sewage tank body, a filter box is placed in the mounting box, and a second through groove communicated with the first through groove is formed in the side face of the sewage tank body. A pushing plate is slidably mounted in the sewage tank body in the length direction of the sewage tank body, and a baffle is slidably mounted on the side face, close to the sewage tank body, of the filter box in the vertical direction. Impurities in the sewage tank are pushed into the filter box so that the impurities can be conveniently collected, a user only needs to disassemble the filter box and then clean the filter box, and the operation is simple and convenient.

This invention relates to a cooking appliance with a steaming function, comprising an inner pot with a front opening. A scraper is installed within the inner pot. During cooking, a cooking plate is horizontally placed within the inner pot, and the scraper is positioned below the cooking plate. When the cooking plate is horizontally removed from the inner pot, the scraper can scrape the outer bottom surface of the cooking plate. Compared to existing technologies, the scraper in this invention can effectively remove dirt from the outer bottom surface of the cooking plate, preventing contamination of the kitchen environment when the cooking plate is removed.