CN107822573A - A kind of isolated injection rinsing machine of steam - Google Patents

A kind of isolated injection rinsing machine of steam Download PDF

Info

Publication number
CN107822573A
CN107822573A CN201711305794.2A CN201711305794A CN107822573A CN 107822573 A CN107822573 A CN 107822573A CN 201711305794 A CN201711305794 A CN 201711305794A CN 107822573 A CN107822573 A CN 107822573A
Authority
CN
China
Prior art keywords
water
chamber
vapor
steam
temperature
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201711305794.2A
Other languages
Chinese (zh)
Other versions
CN107822573B (en
Inventor
杨友明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Foshan District Of Shunde City Light Environmental Technology Co Ltd
Original Assignee
Foshan District Of Shunde City Light Environmental Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Foshan District Of Shunde City Light Environmental Technology Co Ltd filed Critical Foshan District Of Shunde City Light Environmental Technology Co Ltd
Publication of CN107822573A publication Critical patent/CN107822573A/en
Application granted granted Critical
Publication of CN107822573B publication Critical patent/CN107822573B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00Washing or rinsing machines for crockery or tableware
    • A47L15/14Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber
    • A47L15/16Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber with rigidly-mounted spraying devices
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J43/00Implements for preparing or holding food, not provided for in other groups of this subclass
    • A47J43/24Devices for washing vegetables or the like
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00Washing or rinsing machines for crockery or tableware
    • A47L15/42Details
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00Washing or rinsing machines for crockery or tableware
    • A47L15/42Details
    • A47L15/4209Insulation arrangements, e.g. for sound damping or heat insulation
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00Washing or rinsing machines for crockery or tableware
    • A47L15/42Details
    • A47L15/4214Water supply, recirculation or discharge arrangements; Devices therefor
    • A47L15/4217Fittings for water supply, e.g. valves or plumbing means to connect to cold or warm water lines, aquastops
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00Washing or rinsing machines for crockery or tableware
    • A47L15/42Details
    • A47L15/4234Steam generating arrangements
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00Washing or rinsing machines for crockery or tableware
    • A47L15/42Details
    • A47L15/4285Water-heater arrangements
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Food Science & Technology (AREA)
  • Water Supply & Treatment (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

The present invention relates to a kind of isolated injection rinsing machine of steam, it includes boiler body, trivet and steam efferent duct, the boiler body has boiler intracavity, the trivet is arranged in the boiler intracavity, the boiler intracavity is separated into heating chamber by the trivet, water storage cavity and vapor chamber, trivet isolation is arranged between the water storage cavity and the heating chamber, to completely cut off the conduction of the heat between the water storage cavity and the heating chamber, the trivet is isolated simultaneously to be arranged between the vapor chamber and the water storage cavity, to completely cut off the conduction of the heat between the vapor chamber and the water storage cavity, the vapor chamber is connected with the heating chamber, it is provided between the heating chamber and the water storage cavity into water channel.

Description

A kind of isolated injection rinsing machine of steam
Technical field
The present invention relates to a kind of injection rinsing machine, and high-temperature steam or high-temperature-hot-water can be ejected to object by particularly relating to one kind The injection rinsing machine that surface is cleaned.
Background technology
It is well known that all mainly utilize clear water auxiliary when people's article-cleaning especially cleans kitchen tools class apparatus at present Cleaning solution is helped to carry out, people generally clean kitchen tools class apparatus, fruit, tea set etc. with this kind of mode, in order to lifted cleaning with And clean effect, people can also be heated clear water to be cleaned, but its cleaning of above-mentioned cleaning method at present and Clean effect can not all reach optimal, grind its reason be due to some dirts its own adhesive force it is extremely strong, if being not up to spy Fixed temperature and to aid in corresponding external force to act on these dirts be difficult to be cleaned out, such as, clean fruit surface wax matter when Wait, if cleaning temperature can not improve, wax will not melt so wax is difficult to be cleaned out from fruit surface, similarly for Some kitchen dirts in the case where cleaning temperature is not high its be difficult to be cleaned out, but there is presently no related cleaning occur Equipment lifts cleaning and clean effect in a straightforward manner, and this is the major defect for conventional art.
The content of the invention
The present invention provides a kind of isolated injection rinsing machine of steam, and it can eject high-temperature steam or high-temperature-hot-water to object Surface is cleaned, and this is for the main object of the present invention.
The technical solution used in the present invention is:A kind of isolated injection rinsing machine of steam, it include boiler body, trivet with And steam efferent duct, the boiler body have boiler intracavity, the trivet is arranged in the boiler intracavity, will by the trivet The boiler intracavity is separated into heating chamber, water storage cavity and vapor chamber.
Trivet isolation is arranged between the water storage cavity and the heating chamber, to completely cut off between the water storage cavity and the heating chamber Heat conduction, the trivet simultaneously isolate is arranged between the vapor chamber and the water storage cavity, to completely cut off the vapor chamber and the storage Heat conduction between water cavity, the vapor chamber are connected with the heating chamber, and entrance is provided between the heating chamber and the water storage cavity Water channel.
The steam efferent duct includes transfer tube and shower nozzle, and the shower nozzle is connected with the transfer tube, and the transfer tube is arranged on In the boiler body, the shower nozzle is in outside the boiler body.
During work, first, cold water is injected into the water storage cavity, and then, cold water enters this into water channel by this and added In hot chamber, cold water is heated rapidly as high-temperature-hot-water in the heating chamber while produces vapor, and high-temperature-hot-water, which was in, to be added In hot chamber, vapor is in the vapor chamber, and either the mixture of vapor or high-temperature-hot-water and vapor leads to high-temperature-hot-water Cross the transfer tube and sprayed by the shower nozzle, to have the function that article-cleaning.
The steam efferent duct has spray vapour, hydrojet and spraying steam and boiling three kinds of states of liquid, is provided with out on the transfer tube Water hole and vapor opening, when the steam efferent duct is in spray vaporous state, the water outlet bore closure, the vapor opening is opened, this Carve, the water vapour in the vapor chamber enters the steam efferent duct by the vapor opening and sprayed by the shower nozzle, when the steam exports When pipe is in hydrojet state, the apopore is opened, and the vapor opening is closed, and this moment, the high-temperature-hot-water in the heating chamber passes through The apopore enters the steam efferent duct and sprayed by the shower nozzle, when the steam efferent duct is in spraying steam and boiling liquid status To wait, the apopore and the vapor opening are opened simultaneously, this moment, the high warm in the water vapour and the heating chamber in the vapor chamber Water is sprayed into the steam efferent duct and by the shower nozzle simultaneously.
The trivet includes heating collet and steam thermal insulation board, wherein, enclosed by the inner surface of the heating collet Around the heating chamber is formed, having heaters is set in the heating chamber, by the outer surface of the heating collet, the boiler body Surface and the lower surface of the steam thermal insulation board are around the water storage cavity is formed, by the inner surface of the boiler body and the water The upper surface of vapour thermal insulation board surrounds and forms the vapor chamber.
The trivet also includes communicating pipe, and communicating pipe connection is arranged between the water storage cavity and the vapor chamber, and this is heat-insulated Frame also includes filler pipe, corresponding with the filler pipe to be provided with filler on the boiler body, and the filler pipe, which is stretched, is located at the storage In water cavity.
Beneficial effects of the present invention are:Because the trivet is that isolation is arranged on the water storage cavity and the heating chamber in the present invention Between, so the heat conduction in the water storage cavity between cold water and the heating chamber high temperature hot water can be completely cut off as far as possible, with lifting The efficiency of heating surface in the heating chamber, shorten the heat time, when specific implementation, the heating chamber is in the water storage cavity, few The heat of amount is transmitted to the effect that can be realized in the water storage cavity to preheating cold water in the water storage cavity through the trivet, makes heat Loss that will not be for no reason.In addition, the volume of the heating chamber be much smaller than the water storage cavity volume, such as, the volume of the heating chamber with The volume ratio of the water storage cavity is:, so the efficiency of heating surface of the heating chamber can be lifted further, make the cold water in the heating chamber It can be rapidly heated and seethe with excitement and produce water vapour.
Isolated simultaneously due to the trivet in the present invention and be arranged between the vapor chamber and the water storage cavity, so can try one's best Completely cut off the heat in the vapor chamber in water vapour and the water storage cavity between cold water to conduct, the water vapour in the vapor chamber is not met Cold from new liquefaction be cold water, in turn results in the vapor chamber and loses the warm, situation of decompression.
The boiler intracavity is separated into heating chamber, water storage cavity and vapor chamber by the present invention by the trivet, can be effective Ground is isolated by different level to cold water with high-temperature-hot-water and cold water with water vapour, so as to realize insulation to the vapor chamber and Pressurize, and its final purpose in by the isolation to various pieces can reach only it is a small amount of cold in the heating chamber to entering Water heat and rapid vaporization, can just have steam, boiling liquid to spray in the short time after product start, to lift use feeling By.
Brief description of the drawings
Fig. 1 is the operating diagram of the present invention.
Fig. 2 is the structural representation of the present invention.
Fig. 3 is the structural representation that transfer tube of the present invention is U-tube.
Fig. 4 is the three-dimensional cross section structure schematic diagram of the present invention.
Fig. 5 is the position view of open-type relief valve of the present invention.
Fig. 6 is the dimensional decomposition structure diagram of open-type relief valve of the present invention.
Fig. 7 is the action schematic diagram of open-type relief valve of the present invention.
Fig. 8 is the action schematic diagram of pressure switch of the present invention.
Embodiment
As shown in Fig. 1 to Fig. 8 a kind of isolated injection rinsing machine of steam, it includes boiler body 10, trivet 20 and steam Efferent duct 30, the boiler body 10 have boiler intracavity, and the trivet 20 is arranged in the boiler intracavity.
The boiler intracavity is separated into heating chamber 11, water storage cavity 12 and vapor chamber 13 by the trivet 20.
The trivet 20 isolation is arranged between the water storage cavity 12 and the heating chamber 11, to completely cut off the water storage cavity 12 with that should add Heat conduction between hot chamber 11.
The trivet 20 simultaneously isolate is arranged between the vapor chamber 13 and the water storage cavity 12, with completely cut off the vapor chamber 13 with Heat conduction between the water storage cavity 12.
The vapor chamber 13 is connected with the heating chamber 11, is provided between the heating chamber 11 and the water storage cavity 12 into water channel 14。
The vapor chamber 13 is located at the top of heating chamber 11.
The steam efferent duct 30 includes transfer tube 31 and shower nozzle 32, and the shower nozzle 32 is connected with the transfer tube 31, the biography Defeated pipe 31 is arranged in the boiler body 10, and the shower nozzle 32 is in outside the boiler body 10.
When specific implementation, the transfer tube 31 could be arranged to extend into the vapor chamber 13 from the heating chamber 11 In, then it is connected with the shower nozzle 32, the transfer tube 31 can also be only existed in the vapor chamber 13, be then connected with the shower nozzle 32 Connect.
When work, first, cold water A is injected into the water storage cavity 12, and then, cold water A enters water channel 14 by this (It is gradually quantitative)Enter in the heating chamber 11, cold water A is heated rapidly as high-temperature-hot-water B while produced in the heating chamber 11 Unboiled water vapor C, high-temperature-hot-water B are in the heating chamber 11, and vapor C is in the vapor chamber 13, and high-temperature-hot-water B or water steam Gas C or high-temperature-hot-water B and vapor C mixture sprays by the transfer tube 31 and by the shower nozzle 32, to reach cleaning materials The effect of product.
As shown in Figures 2 to 4, during above-mentioned, the steam efferent duct 30 has spray vapour, hydrojet and spraying steam and boiling Three kinds of states of liquid.
Apopore 33 and vapor opening 34 are provided with the transfer tube 31.
When the steam efferent duct 30 is in spray vaporous state, the apopore 33 is closed, and the vapor opening 34 is opened, this Carve, the water vapour in the vapor chamber 13 enters the steam efferent duct 30 by the vapor opening 34 and sprayed by the shower nozzle 32.
When the steam efferent duct 30 is in hydrojet state, the apopore 33 is opened, and the vapor opening 34 is closed, this Carve, the high-temperature-hot-water in the heating chamber 11 enters the steam efferent duct 30 by the apopore 33 and sprayed by the shower nozzle 32.
When the steam efferent duct 30 is in spraying steam and boiling liquid status, the apopore 33 and the vapor opening 34 are same Shi Kaiqi, this moment, the high-temperature-hot-water in water vapour and the heating chamber 11 in the vapor chamber 13 export into the steam simultaneously Pipe 30 is simultaneously sprayed by the shower nozzle 32.
When specific implementation, user can select the work of the steam efferent duct 30 according to the characteristic of cleaned article Make mode to reach optimal cleaning performance, such as, can be by the steam efferent duct 30 when apple surface wax is cleaned Spray vaporous state is placed in, at this moment mainly dissolving wax by the high temperature and pressure of steam has the function that cleaning.
, can be by assembling controlling switch in the apopore 33 and the position of vapor opening 34 when specific implementation Mode controls both open and close, and the steam efferent duct 30 can also be designed as to opening for both form controls of telescoping tube Open and close, be specifically described as, the apopore 33 is located at more than the liquid level of heating chamber 11 when the steam efferent duct 30 shortens When this moment the steam efferent duct 30 can only spray vapour, or both open and close of control by other means.
It is worth emphasizing that during above-mentioned, because the trivet 20 is that isolation is arranged on the water storage cavity 12 with that should add Between hot chamber 11, so the heat that can completely cut off in the water storage cavity 12 between cold water and the high temperature hot water of heating chamber 11 passes as far as possible Lead, to lift the efficiency of heating surface in the heating chamber 11, shorten the heat time, when specific implementation, the heating chamber 11 is in In the water storage cavity 12, a small amount of heat is transmitted in the water storage cavity 12 through the trivet 20 and can realized in the water storage cavity 12 The effect of preheating cold water, make the loss that heat will not be for no reason.In addition, the volume of the heating chamber 11 is much smaller than the appearance of the water storage cavity 12 Product, such as, the volume ratio of the volume of the heating chamber 11 and the water storage cavity 12 is 1:6, so the heating can be lifted further The efficiency of heating surface of chamber 11, the cold water in the heating chamber 11 is rapidly heated and seethe with excitement and produce water vapour.
Due to the trivet 20 simultaneously isolate be arranged between the vapor chamber 13 and the water storage cavity 12, so can try one's best every Heat in the exhausted vapor chamber 13 in water vapour and the water storage cavity 12 between cold water conducts, and makes water vapour in the vapor chamber 13 not It can be to the cold cold water from new liquefaction, in turn result in the vapor chamber 13 and lose temperature, the situation of decompression.
The boiler intracavity is separated into heating chamber 11, water storage cavity 12 and vapor chamber 13 by the present invention by the trivet 20, Effectively cold water can be isolated by different level with high-temperature-hot-water and cold water with water vapour, so as to realize to the vapor chamber 13 Insulation and pressurize, and its final purpose be by the isolation to various pieces can reach only to entering the heating chamber A small amount of cold water in 11 heat and rapid vaporization, in the short time after product start(The 5-10 seconds)Can just have steam, Boil liquid to spray, to lift use feeling.
The either seethe with excitement mixture of clear water or steam and the clear water that seethes with excitement of the steam sprayed from the shower nozzle 32 possesses high temperature height Pressure, when the shower nozzle 32 when body surface to object by that can be cleaned and the action of decontamination.
When specific implementation, the trivet 20 includes heating collet 21 and steam thermal insulation board 22, wherein, by The inner surface of the heating collet 21 sets having heaters 40 around the heating chamber 11 is formed in the heating chamber 11.
By the outer surface of the heating collet 21, the boiler body 10 inner surface and the steam thermal insulation board 22 under Surface surrounds and forms the water storage cavity 12.
By the upper surface of the inner surface of the boiler body 10 and the steam thermal insulation board 22, which surrounds, forms the vapor chamber 13。
When specific implementation, the steam thermal insulation board 22 is set in the top of heating collet 21.
When specific implementation, the trivet 20 also includes communicating pipe 23, and the communicating pipe 23 connection is arranged on the water storage Between chamber 12 and the vapor chamber 13.
When work, cold water is injected into the water storage cavity 12, this moment, liquid level and the communicating pipe in the water storage cavity 12 Liquid level in 23 is concordant, and then, cold water is entered in the heating chamber 11 by this into water channel 14, and cold water is in the heating chamber 11 It is heated rapidly as high-temperature-hot-water while produces vapor, high-temperature-hot-water is in the heating chamber 11, and vapor is in the steaming In vapour chamber 13, now, vapor acts on air pressure P on the cold water in the water storage cavity 12 by the communicating pipe 23, make cold water by Pressure runs through this and is added into water channel 14 in the heating chamber 11, so moves in circles.
During above-mentioned, the vapor in the vapor chamber 13 is with the cold water in the water storage cavity 12 only in the communicating pipe 23 In have a contact, and contact area very little but can conducting pressure so that the progress heat for trying one's best few between vapor and cold water Amount is transmitted to have the function that to be incubated the vapor in the vapor chamber 13, pressurize.
The trivet 20 also includes filler pipe 24, and on the boiler body 10 be provided with corresponding with the filler pipe 24 adds water Mouthfuls 25, the filler pipe 24, which is stretched, to be located in the water storage cavity 12, and user can will be cold by the filler 25 and the filler pipe 24 Water is injected in the water storage cavity 12.
When specific implementation, the communicating pipe 23 and some filler pipes 24 are connected to the steam thermal insulation board 22 simultaneously On.
When specific implementation, the bottom of heating collet 21 offers connectivity slot, and connectivity slot connection is arranged on this Between heating chamber 11 and the water storage cavity 12, this is formed by the connectivity slot and enters water channel 14.
When specific implementation, the connection grooved ring is located at the bottom of heating collet 21, the cold water in the water storage cavity 12 Circulation is flowed into the heating chamber 11 after crossing the connectivity slot, and in practice, the connection slot aperture is smaller(Such as:Five millimeters)Pass through the company Water in groove can isolate to the liquid in the heating chamber 11 and the water storage cavity 12, and heat is avoided as far as possible to reach The effect of conduction.
When specific implementation, the transfer tube 31 is U-tube, the U-tube pass sequentially through heating chamber 11, vapor chamber 13 and After wear back the heating chamber 11 after extend to outside the boiler body 10.
The ring of heater 40 is located at the U-tube surrounding, to carry out reheating to fluid therein, lifts ejecta Temperature, in addition, U-tube can facilitate the intracavitary of the transfer tube 31 to position.
When specific implementation, temperature controller 70 is provided with the boiler body 10, the temperature controller 70 is with being somebody's turn to do Heater 40 is connected, and when specific implementation, the temperature controller 70 is connected in series with the heater 40.
When work, the heating power of heater 40, the cool water heating in the heating chamber 11 is seethed with excitement and produces water and is steamed Vapour, this moment, pressure persistently raises in the boiler body 10, because pressure and temperature is proportional temperature is also on Rise, when temperature reaches the rated temperature of the temperature controller 70, the temperature controller 70 is heated tripping, cuts off the heater 40 Power supply, pressure no longer rises, and forms saturation water and saturated vapor at such a temperature.
After either the mixture of high-temperature-hot-water or water vapour and high-temperature-hot-water is sprayed water vapour by the shower nozzle 32, the pot Pressure drop low temperature declines in furnace body 10, and the temperature controller 70, which resets closure, makes the heating power of heater 40, the boiler In body 10 pressure rise temperature rise, to the temperature controller 70 rated temperature when, the tripping of temperature controller 70 power-off, Such circulation work.
After either the mixture of high-temperature-hot-water or water vapour and high-temperature-hot-water is persistently sprayed water vapour by the shower nozzle 32, Water in the heating chamber 11 is gradually decreased, and cold water is persistently filled into until cold water has consumed in the heating chamber 11, and the heater 40 exposes Liquid level, due to the temperature of the heat absorption of the no water electric heater 40, rise reaches the rated temperature of the temperature controller 70 rapidly, The tripping of temperature controller 70 power-off stops heating, works on if desired, repeats plus hydrodynamic(al) is made.
Pressure, which gradually rises, when 70 failure of temperature controller, in the boiler body 10 reaches open-type relief valve 100 Vent pressure when, the open-type relief valve 100 opens pressure release so as to having the function that safeguard protection.
As shown in Figs. 5 to 7, the open-type relief valve 100 is arranged at the filler 25, and the open-type relief valve 100 wraps Include and push opening unit and pressure release unit, this, which pushes opening unit and is grouped together into the open-type with the pressure release unit, lets out Pressure valve 100, wherein, this pushes unlatching and the closure that opening unit controls the open-type relief valve 100.
The pressure release unit controls the open-type relief valve 100 to switch between pressure release state and non-pressure release state, with control Make the working condition of the open-type relief valve 100.
The boiler body 10 is concavely provided with inner cavity 110, and the open-type relief valve 100, which is hidden, is arranged on the inner cavity 110 In.
This, which pushes opening unit, includes outer spiral cover 120, action cap 130 and opens spring 140, and the outer spiral cover 120 has Outward turning cover cavity, the unlatching spring 140 and the action cap 130 are set in sequence in the outward turning cover cavity, the unlatching spring 140 It is arranged between the outer spiral cover 120 and the action cap 130.
The outward turning cover cavity includes idle running chamber 121 and latch well 122, the idle running chamber 121 are connected with the latch well 122 Logical, the latch well 122 is located at the top of idle running chamber 121.
When the unlatching spring 140 is in non-compressed state, the action cap 130 is in the idle running chamber 121, this Carve, the outer spiral cover 120 and the action cap 130 are relatively independent, and the action cap 130 does not turn when outer 120 Forced rotation of spiral cover Dynamic, the outer spiral cover 120 is in idling conditions.
When the unlatching spring 140 is in compressive state, the action cap 130 enters the lock from the idle running chamber 121 Determine in chamber 122, this moment, the action cap 130 is locked in the latch well 122, and the action cap 130 is locked with the outer spiral cover 120 It is scheduled on together, drives the synchronous axial system of action cap 130 when outer 120 Forced rotation of spiral cover, and driven by the action cap 130 The pressure release unit synchronous axial system, so as to which the entirety of open-type relief valve 100 be screwed off from the boiler body 10.
When specific implementation, the outer top of spiral cover 120 is provided with flexible top cover 123, and the flexible lid of top cover 123 is located at The top opening position of inner cavity 110, the integral cap of open-type relief valve 100 is set be hidden in the indent by the flexible top cover 123 In chamber 110.
When need by the open-type relief valve 100 is overall screwed off from the boiler body 10 when, user on to Under pinch the flexible top cover 123 and the flexible top cover 123 is wrapped the outer spiral cover 120, meanwhile, pushing the flexible top cover 123 makes The unlatching spring 140 is in compressive state, and the open-type relief valve 100 is overall this moment to be revolved from the boiler body 10 Under.The flexible top cover 123 can be made up of silica gel type flexible material.
When specific implementation, some outer faceted pebbles 131, some outer ribs are provided with the outer surface of the action cap 130 Face 131 is connected to each other to form action cap card access surface.
Some interior faceted pebbles 132 are provided with the inner surface of the latch well 122, some interior faceted pebbles 132 are connected to one another at one Rise and form latch well card access surface.
When the action cap 130 is entered in the latch well 122 from the idle running chamber 121, the action cap card access surface with The latch well card access surface, which is connected together, makes the action cap 130 be locked in the latch well 122, the action cap card access surface and The latch well card access surface can be polygonized structure, such as, hexagon, octagon etc..
The pressure release unit includes pressure release overcoat 150, pressure release inner core 160 and pressure release spring 170, wherein, the pressure release overcoat 150 are screwed on the boiler body 10, and the pressure release overcoat 150 has overcoat relief hole 151 and overcoat inner chamber.
The overcoat relief hole 151 connection is arranged between the overcoat inner chamber and the inner cavity 110, the overcoat inner chamber and the pot The boiler intracavity of furnace body 10 is connected.
The pressure release inner core 160 is arranged in the overcoat inner chamber, and the pressure release inner core 160 has inner core relief hole 161 and interior In-core chamber, the inner core relief hole 161 are connected between the inner core inner chamber and the overcoat inner chamber, and the pressure release spring 170 is arranged on this In inner core inner chamber, top 180 is provided with the inner core inner chamber, the top 180 passes from the inner core inner chamber, the pressure release spring 170 are arranged between the top 180 and pressure release piston 190, and the coefficient of stiffiness of the pressure release spring 170, which is more than, opens spring 140 The coefficient of stiffiness.
When the open-type relief valve 100 is in non-pressure release state, the pushing tow of the pressure release spring 170 pressure release piston 190, the pressure release piston 190 is cut off the path between the inner core relief hole 161 and the inner core inner chamber.
When the open-type relief valve 100 is in pressure release state, the air pressure in the boiler intracavity of the boiler body 10 The pushing tow pressure release piston 190 lifts the pressure release piston 190, and this moment, the inner core relief hole 161 connects with the inner core inner chamber, should Gas in boiler intracavity passes sequentially through the inner core inner chamber, the inner core relief hole 161 and drains into this by the overcoat relief hole 151 To have the function that pressure release in inner cavity 110, this moment, because the flexible top cover 123 is that lid is located at the top opening position of inner cavity 110 , so the flexible top cover 123 has the function that security protection, make pressure release gas will not directly splash on human body.
When the unlatching spring 140 is in compressive state, the pushing tow of the top 180 action cap 130 makes the action cap 130 enter in the latch well 122 from the idle running chamber 121, together with the action cap 130 is locked in the outer spiral cover 120 When, together with the top 180 is locked in the action cap 130 simultaneously, by between the top 180 and the action cap 130 Locking relation, the action cap 130 is set to drive the pressure release unit synchronous axial system, so as to which the open-type relief valve 100 is overall Screwed off from the boiler body 10.
When specific implementation, the top of top 180 is provided with neck 181, corresponding with the neck 181 in the action Fixture block is provided with cap 130.
In the present invention, this pushes opening unit and is grouped together into the open-type relief valve 100 with the pressure release unit Structure design thinking is novel, and degree of integration is high, with good using effect and use feeling specifically used when.
As shown in figure 8, be additionally provided with pressure switch 200 on the boiler body 10, the pressure switch 200 is monitoring the pot Air pressure in the boiler intracavity of furnace body 10, when the air pressure in boiler intracavity is higher than rated value, the pressure switch 200 action cut-out The heater circuit of the boiler body 10, the boiler body 10 is set to stop heating, the air pressure in boiler intracavity stops rising, so as to reach To the effect of security protection.
The pressure switch 200 includes Switch main body 210, connector 220, metal clips 230, push rod 240 and power connection end Son 250, wherein, the connector 220 is connected to the one end of Switch main body 210, and the electrical terminals 250 are connected to the Switch main body 210 other end.
The connector 220 has connector inner chamber 221, and the connector inner chamber 221 connection is arranged on 10 pots of the boiler body Between furnace chamber and the chamber body 211 of the Switch main body 210, the metal clips 230 is arranged on the connector inner chamber 221 with being somebody's turn to do Between chamber body 211.
Push rod threading 212 is provided with the Switch main body 210, the push rod 240 is located in the push rod threading 212, the top The one end of bar 240 top is located on the metal clips 230, and the other end top of the push rod 240 is located on the electrical terminals 250, and this connects Electric terminal 250 is connected in the electric heating circuit of the boiler body 10.
When the pressure switch 200 works, the gas in boiler intracavity enters in the connector inner chamber 221 and constantly pushed up The metal clips 230 is pushed away, when the air pressure in boiler intracavity is higher than rated value, the metal clips 230, which deforms, to be upspring and push up The push rod 240 is pushed away, the 240 further pushing tow of the push rod electrical terminals 250 disconnect the electrical terminals 250, so as to cut off the pot The electric heating circuit of furnace body 10, the boiler body 10 is set to stop heating, the air pressure in boiler intracavity stops rising, so as to reach The effect of security protection.
Using the membrane structure in metal clips 230 and dependency structure replacement conventional pressure switch significantly in the present invention Product service life can be lifted in the case of reducing pressure switch overall volume and simplifies product structure.
When specific implementation, sealing flexible pad is provided between the connector inner chamber 221 and the metal clips 230 260, the sealing flexible pad 260 can prevent gas leakage first, and the sealing flexible pad 260 can be by the gas in boiler intracavity in addition Keep apart with the metal clips 230 to lift the service life of the metal clips 230.
When specific implementation, the electrical terminals 250 include first end sub-pieces 251 and Second terminal piece 252, and this One terminal plate 251 and the Second terminal piece 252 are fixed in the Switch main body 210, and the elasticity of first end sub-pieces 251 rides upon On the Second terminal piece 252, the push rod 240 top is located at the lower section of first end sub-pieces 251.

Claims (10)

  1. A kind of 1. isolated injection rinsing machine of steam, it is characterised in that:Including boiler body, trivet and steam efferent duct, the pot Furnace body has boiler intracavity, and the trivet is arranged in the boiler intracavity, is separated into the boiler intracavity by the trivet Heating chamber, water storage cavity and vapor chamber,
    Trivet isolation is arranged between the water storage cavity and the heating chamber, to completely cut off the heat between the water storage cavity and the heating chamber Amount conduction, the trivet is isolated simultaneously to be arranged between the vapor chamber and the water storage cavity, to completely cut off the vapor chamber and the water storage cavity Between heat conduction, the vapor chamber is connected with the heating chamber, is provided between the heating chamber and the water storage cavity into water channel,
    The steam efferent duct includes transfer tube and shower nozzle, and the shower nozzle is connected with the transfer tube, and the transfer tube is arranged on the pot In furnace body, the shower nozzle is in outside the boiler body,
    During work, first, cold water is injected into the water storage cavity, and then, cold water enters the heating chamber by this into water channel In, cold water is heated rapidly as high-temperature-hot-water in the heating chamber while produces vapor, and high-temperature-hot-water is in the heating chamber In, vapor is in the vapor chamber, and either the mixture of vapor or high-temperature-hot-water and vapor passes through this to high-temperature-hot-water Transfer tube is simultaneously sprayed by the shower nozzle, to have the function that article-cleaning.
  2. A kind of 2. isolated injection rinsing machine of steam as claimed in claim 1, it is characterised in that:The steam efferent duct have spray vapour, Hydrojet and spraying steam and boiling three kinds of states of liquid, apopore and vapor opening are provided with the transfer tube,
    When the steam efferent duct is in spray vaporous state, the water outlet bore closure, the vapor opening is opened, this moment, the vapor chamber In water vapour entered by the vapor opening and the steam efferent duct and sprayed by the shower nozzle,
    When the steam efferent duct is in hydrojet state, the apopore is opened, and the vapor opening is closed, this moment, the heating chamber In high-temperature-hot-water entered by the apopore and the steam efferent duct and sprayed by the shower nozzle,
    When the steam efferent duct is in spraying steam and boiling liquid status, the apopore and the vapor opening are opened simultaneously, this Carve, the water vapour in the vapor chamber and the high-temperature-hot-water in the heating chamber are sprayed into the steam efferent duct and by the shower nozzle simultaneously Go out.
  3. A kind of 3. isolated injection rinsing machine of steam as claimed in claim 1, it is characterised in that:The trivet includes heating collet And steam thermal insulation board, wherein, the inner surface by the heating collet is provided with around the heating chamber is formed in the heating chamber Heater, enclosed by the lower surface of the outer surface of the heating collet, the inner surface of the boiler body and the steam thermal insulation board Around the water storage cavity is formed, by the upper surface of the inner surface of the boiler body and the steam thermal insulation board, which surrounds, forms the steam Chamber.
  4. A kind of 4. isolated injection rinsing machine of steam as claimed in claim 3, it is characterised in that:The trivet also includes communicating pipe, Communicating pipe connection is arranged between the water storage cavity and the vapor chamber,
    When work, cold water is injected into the water storage cavity, this moment, the liquid level in the water storage cavity and the liquid level in the communicating pipe Concordantly, then, cold water is entered in the heating chamber by this into water channel, and cold water is heated rapidly in the heating chamber as height Warm water produces vapor simultaneously, and high-temperature-hot-water is in the heating chamber, and vapor is in the vapor chamber, now, vapor Air pressure is acted on the cold water in the water storage cavity by the communicating pipe, cold water compression is run through this and is added into water channel In the heating chamber, so move in circles, during above-mentioned, the cold water in vapor and the water storage cavity in the vapor chamber is only Contacted in the communicating pipe, and conducting pressure.
  5. A kind of 5. isolated injection rinsing machine of steam as claimed in claim 4, it is characterised in that:The trivet also includes filler pipe, Corresponding with the filler pipe to be provided with filler on the boiler body, the filler pipe, which is stretched, to be located in the water storage cavity.
  6. A kind of 6. isolated injection rinsing machine of steam as claimed in claim 5, it is characterised in that:The communicating pipe and some be somebody's turn to do add water Pipe is connected on the steam thermal insulation board simultaneously, and the heating collet bottom offers connectivity slot, and connectivity slot connection is arranged on this Between heating chamber and the water storage cavity, this is formed by the connectivity slot and enters water channel, after the cold water in the water storage cavity flows through the connectivity slot Flow into the heating chamber, by the water in the connectivity slot can in the heating chamber and the water storage cavity liquid carry out every From.
  7. A kind of 7. isolated injection rinsing machine of steam as described in claim 3 or 4, it is characterised in that:It is provided with the boiler body Temperature controller, the temperature controller are connected with the heater,
    When work, the heater heating power, the cool water heating in the heating chamber is seethed with excitement and produces water vapour, this moment, Pressure persistently raises in the boiler body, because pressure and temperature is proportional temperature also rises therewith, when temperature reaches To the temperature controller rated temperature when, the temperature controller is heated tripping, cuts off the power supply of the heater, pressure no longer on Rise, form saturation water and saturated vapor at such a temperature,
    After either the mixture of high-temperature-hot-water or water vapour and high-temperature-hot-water is sprayed water vapour by the shower nozzle, the boiler body Middle pressure drop low temperature declines, and the temperature controller, which resets closure, makes the heater heating power, pressure liter in the boiler body High-temperature rise, to the temperature controller rated temperature when, the temperature controller tripping power-off,
    After either the mixture of high-temperature-hot-water or water vapour and high-temperature-hot-water is persistently sprayed water vapour by the shower nozzle, the heating Water in chamber is gradually decreased, and cold water is persistently filled into until cold water has consumed in the heating chamber, and the heater exposes liquid level, due to not having The temperature of the heat absorption of the water electric heater raises rapidly the rated temperature for reaching the temperature controller, and the temperature controller tripping is broken Electricity stops heating, works on if desired, repeats plus hydrodynamic(al) is made.
  8. A kind of 8. isolated injection rinsing machine of steam as claimed in claim 5, it is characterised in that:Open-type relief valve is arranged on this and added At the mouth of a river, the open-type relief valve includes pushing opening unit and pressure release unit, and this pushes opening unit and the pressure release unit Be grouped together into the open-type relief valve, wherein, this push opening unit control the open-type relief valve unlatching and Closure, the pressure release unit controls the open-type relief valve to switch between pressure release state and non-pressure release state, to control this to open The working condition of formula relief valve is opened, the boiler body is concavely provided with inner cavity, and the open-type relief valve, which is hidden, is arranged on the indent In chamber,
    This, which pushes opening unit, includes outer spiral cover, action cap and opens spring, and the outer spiral cover has outward turning cover cavity, the unlatching Spring and the action cap are set in sequence in the outward turning cover cavity, the unlatching spring be arranged on the outer spiral cover and the action cap it Between, the outward turning cover cavity includes idle running chamber and latch well, the idle running chamber are connected with the latch well, and the latch well is located at the sky Turning top of chamber, the outward turning tops are provided with flexible top cover, and the flexible top cover lid is located at the inner cavity top opening position,
    Some outer faceted pebbles are provided with the outer surface of the action cap, some outer faceted pebbles are connected to each other to form action cap card Junction, some interior faceted pebbles is provided with the inner surface of the latch well, some interior faceted pebbles are connected to each other to form latch well Card access surface,
    The pressure release unit includes pressure release overcoat, pressure release inner core and pressure release spring, wherein, the pressure release overcoat is screwed on the boiler sheet On body, the pressure release overcoat has overcoat relief hole and overcoat inner chamber, the overcoat relief hole connection be arranged on the overcoat inner chamber with Between the inner cavity, the overcoat inner chamber is connected with the boiler intracavity of the boiler body,
    The pressure release inner core is arranged in the overcoat inner chamber, and the pressure release inner core has inner core relief hole and inner core inner chamber, the inner core Relief hole is connected between the inner core inner chamber and the overcoat inner chamber, and the pressure release spring is arranged in the inner core inner chamber, the interior in-core Top is provided with chamber, the top is passed from the inner core inner chamber, and the pressure release spring is arranged between the top and pressure release piston, The coefficient of stiffiness of the pressure release spring is more than the coefficient of stiffiness for opening spring.
  9. A kind of 9. isolated injection rinsing machine of steam as claimed in claim 1, it is characterised in that:Pressure is additionally provided with the boiler body Power switchs, and the pressure switch includes Switch main body, connector, metal clips, push rod and electrical terminals, wherein, the connector The Switch main body one end is connected to, the electrical terminals are connected to the other end of the Switch main body,
    The connector has connector inner chamber, and connector inner chamber connection is arranged on the boiler body boiler intracavity and the switch sheet Between the chamber body of body, the metal clips is arranged between the connector inner chamber and the chamber body,
    Push rod threading is provided with the Switch main body, the push rod is located in the push rod threading, and push rod one end top is located at the gold Belong on shell fragment, the other end top of the push rod is located on the electrical terminals, and the electricity that the electrical terminals are connected to the boiler body adds In heater circuit.
  10. A kind of 10. isolated injection rinsing machine of steam as claimed in claim 1, it is characterised in that:The transfer tube prolongs from the heating chamber Extend into the vapor chamber, be then connected with the shower nozzle.
CN201711305794.2A 2017-01-10 2017-12-11 Water vapor isolation type spray washer Active CN107822573B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2017200242476 2017-01-10
CN201720024247 2017-01-10

Publications (2)

Publication Number Publication Date
CN107822573A true CN107822573A (en) 2018-03-23
CN107822573B CN107822573B (en) 2024-03-19

Family

ID=61642766

Family Applications (2)

Application Number Title Priority Date Filing Date
CN201711305794.2A Active CN107822573B (en) 2017-01-10 2017-12-11 Water vapor isolation type spray washer
CN201721709413.2U Active CN208551712U (en) 2017-01-10 2017-12-11 A kind of isolated injection rinsing machine of steam

Family Applications After (1)

Application Number Title Priority Date Filing Date
CN201721709413.2U Active CN208551712U (en) 2017-01-10 2017-12-11 A kind of isolated injection rinsing machine of steam

Country Status (1)

Country Link
CN (2) CN107822573B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110338698A (en) * 2019-07-13 2019-10-18 扬州市新港电机有限公司 A kind of welding electricity generation two-purpose machine dust cleaning equipment
CN112369993A (en) * 2020-09-21 2021-02-19 广东格兰仕集团有限公司 Dry burning prevention control method for steam generator of dish washing machine
CN112914466A (en) * 2021-02-24 2021-06-08 珠海格力电器股份有限公司 Cleaning and disinfecting structure, dish washing machine and cleaning and disinfecting method

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8001909U1 (en) * 1980-01-25 1981-03-12 Alfred Kärcher GmbH & Co, 7057 Winnenden HIGH PRESSURE CLEANING DEVICE WITH ELECTRIC HEATING
JP3088885U (en) * 2002-02-12 2002-10-04 程進村 Steam cleaner
CN201046441Y (en) * 2006-12-27 2008-04-16 如皋市大生线路器材有限公司 Steam cleaner
CN201720205U (en) * 2010-05-31 2011-01-26 成都海科机械设备制造有限公司 Water-jet-type dirt removing machine
CN201819183U (en) * 2010-09-03 2011-05-04 佛山市顺德区盛熙电器制造有限公司 Steam supply device and electric steamer, steam iron, steam cleaner, humidifier, and steam mop employing same
CN201819189U (en) * 2010-09-30 2011-05-04 佛山市顺德区盛熙电器制造有限公司 Steam generator, steam cleaner and steam mop
CN201823724U (en) * 2010-10-16 2011-05-11 梁金然 Steam cleaner with electric pump and electromagnetic steam sealing valve
CN203330037U (en) * 2013-07-14 2013-12-11 福建奇妙电子科技有限公司 Household water-vapor mixing airflow cleaning machine and handheld spray-washing gun thereof

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8001909U1 (en) * 1980-01-25 1981-03-12 Alfred Kärcher GmbH & Co, 7057 Winnenden HIGH PRESSURE CLEANING DEVICE WITH ELECTRIC HEATING
JP3088885U (en) * 2002-02-12 2002-10-04 程進村 Steam cleaner
CN201046441Y (en) * 2006-12-27 2008-04-16 如皋市大生线路器材有限公司 Steam cleaner
CN201720205U (en) * 2010-05-31 2011-01-26 成都海科机械设备制造有限公司 Water-jet-type dirt removing machine
CN201819183U (en) * 2010-09-03 2011-05-04 佛山市顺德区盛熙电器制造有限公司 Steam supply device and electric steamer, steam iron, steam cleaner, humidifier, and steam mop employing same
CN201819189U (en) * 2010-09-30 2011-05-04 佛山市顺德区盛熙电器制造有限公司 Steam generator, steam cleaner and steam mop
CN201823724U (en) * 2010-10-16 2011-05-11 梁金然 Steam cleaner with electric pump and electromagnetic steam sealing valve
CN203330037U (en) * 2013-07-14 2013-12-11 福建奇妙电子科技有限公司 Household water-vapor mixing airflow cleaning machine and handheld spray-washing gun thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110338698A (en) * 2019-07-13 2019-10-18 扬州市新港电机有限公司 A kind of welding electricity generation two-purpose machine dust cleaning equipment
CN112369993A (en) * 2020-09-21 2021-02-19 广东格兰仕集团有限公司 Dry burning prevention control method for steam generator of dish washing machine
CN112914466A (en) * 2021-02-24 2021-06-08 珠海格力电器股份有限公司 Cleaning and disinfecting structure, dish washing machine and cleaning and disinfecting method
CN112914466B (en) * 2021-02-24 2022-03-29 珠海格力电器股份有限公司 Cleaning and disinfecting structure, dish washing machine and cleaning and disinfecting method

Also Published As

Publication number Publication date
CN208551712U (en) 2019-03-01
CN107822573B (en) 2024-03-19

Similar Documents

Publication Publication Date Title
TWI439242B (en) Electric pressure cooker with function of rapid pressure relief
CN107822573A (en) A kind of isolated injection rinsing machine of steam
CN201798512U (en) Intelligent rice soaking-free electric rice cooker
CN106580216A (en) Heating type high-pressure vapor spray washer and a spraying method thereof
CN201668274U (en) Novel steam cabinet
WO2009015529A1 (en) Automatic throttle exhaust valve for a steamer
CN106419516A (en) Multifunctional steam water trough
CN109730603A (en) A kind of dish-washing machine and its control method
CN106618204A (en) One-time heating heat-insulating water dispenser equipment
CN211862527U (en) Hot-water kettle with multifunctional structure
CN204806358U (en) Steam generator
CN205548321U (en) Stepping type water boiler
CN209179562U (en) A kind of full-automatic steaming room
CN206338781U (en) High-temperature steam generator and electric steamer
WO2015078164A1 (en) Multifunctional sauna machine
CN209286227U (en) A kind of high-temperature vapour disinfecting machine of tablewares
CN209121932U (en) A kind of Novel rice cooker inner cover linkage structure
CN207299503U (en) A kind of water heater of relay heated type
CN208301474U (en) A kind of additional water type Steam roaster
CN201453615U (en) Miniature constant-temperature herbal fumigation instrument
CN206621193U (en) A kind of multifunctional steam tank
CN219844955U (en) Fresh rhizoma polygonati steaming and boiling device
CN208462875U (en) A kind of steam-type bean cotyledon heating device
CN108204579A (en) High-temperature steam generator and electric steamer
CN2337926Y (en) Full automatic electric water boiler

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
CB02 Change of applicant information
CB02 Change of applicant information

Address after: Room 202, building 5, No. 7, Huanhu Road, Songshan Lake Park, Dongguan City, Guangdong Province

Applicant after: Dongguan Qinghuo Technology Co.,Ltd.

Address before: Room 1, 4 / F, building g, No. 1, North Sanle Road, design city neighborhood committee, Beijiao Town, Shunde District, Foshan City, Guangdong Province 528311

Applicant before: FOSHAN SHUNDE QINGHUO ENVIRONMENT TECHNOLOGY Co.,Ltd.

GR01 Patent grant
GR01 Patent grant