EP1307129A1 - Safety device against overflow - Google Patents
Safety device against overflowInfo
- Publication number
- EP1307129A1 EP1307129A1 EP01958808A EP01958808A EP1307129A1 EP 1307129 A1 EP1307129 A1 EP 1307129A1 EP 01958808 A EP01958808 A EP 01958808A EP 01958808 A EP01958808 A EP 01958808A EP 1307129 A1 EP1307129 A1 EP 1307129A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- float
- chamber
- overflow
- water
- safety device
- 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
Links
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/08—Liquid supply or discharge arrangements
- D06F39/081—Safety arrangements for preventing water damage
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/421—Safety arrangements for preventing water damage
- A47L15/4212—Detection of water leaks; Collection of leaked water, e.g. in the casing
Definitions
- the present invention is related to a device that prevents the overflow of water out of the machine to be used in the washing machines wherein water is used as the fluid.
- Overflow of water in washing machines may be caused by such factors as locating the machine in a position inclined to any direction with respect to the ground plane or the excessive amount of water taken in.
- certain methods such as the use of pneumatic safety fitting and floats, as well as measuring the flow-rate of the excessive take-in water have been developed. These methods are discussed below.
- a safety device comprising a tube that is in interaction with the chassis (frame) used in the dish washers.
- Said tube is provided with an inlet at the point corresponding to the safety level of water collected in said chassis; and the pneumatic safety system is activated when water enters an air-proof chamber through said inlet, and it stops the machine.
- This safety device determines the water level before water rises up to the safety level and activates the light-and sound-signals.
- a float wliich is present in the tube is activated during the interaction and one or more switches are used to determine the location of the float.
- EP 0951860 a device used to prevent water overflow in washing machines or dish washers.
- This device consists of a chassis at the bottom of the machine wherein water coming from the hydraulic connections are collected in order to avoid its spilling out of any component of the machine, and a float disposed in said chassis, which actuates a micro switch when it rises due to the rising water level. Said micro switch closes the inflow valve and actuates the evacuation pump, thus avoids overflow.
- the float, and a hole provided on the float are mentioned, said hole being closed by a diaphragm-shaped piece to make it water proof and the diaphragm-shaped piece activating the float by pushing it upwards. The pushing force exerted by the diaphragm-shaped piece on the float is transferred from the diaphragm-shaped piece to the float by means of a relay.
- Said safety device consists of a float disposed in a chamber at a distance from the liquid container and a safety level switch which operates interactively with said float. There the float acts upon the switch which in turn, turns on the evacuation pump, and when the liquid level reaches a certain level above the expected level, the inflow valve is subsequently kept closed and when the amount of liquid attains the expected level, the float turns off the evacuation pump by means of the switch.
- EP No. 0958777 a water level regulator used to regulate the water level in washing machines or dish washers.
- Said device consists of a float guided in the floatation chamber, connected to the auxiliary chamber of the tub of the machine.
- a rod provided in said auxiliary chamber moves on the vertical axis between the two water levels of the float and actuates the lever and thus acts on the micro switch.
- the inflow valve is closed to avoid water inflow.
- the lever is driven by an independent mechanism and operates on two main points, in connection with the micro switch.
- a water supply and dosing device for the washing machines or dish washers. Dosing is realized by measuring the level of the liquid in the water tank provided in the chassis. Said device determines the level by determining the level of the liquid in the water tank, which is characterized in that the first float prevents the liquid from being filled in the tank by means of the first contact. Said first float is disposed in a chamber inside the device, within a body with defined borders; which is in turn placed outside the tank to which it is hydraulically connected. In this way, a rise in the water level in the tank causes the rising of the first float placed in the first chamber which leads to the actuation of the switch in order to lower the water level to a predetermined level.
- At least a second chamber is provided in the body of said device, wherein a second float is placed to provide the activation of the micro switch by a second electrical contact.
- the second chamber is also connected to the water tank, hydraulically.
- the second float in the second chamber also rises, depending on the rising of the liquid level in the tank and consequently, when said liquid attains the predetermined second level, the second contact occurs.
- the second float is spherical and the second chamber, second contact and second float are used for safety purposes in case the first contact is not switched on.
- the threshold value required for the switching on of the second contact is at a higher level than that of the first contact.
- the object of the present invention is to realize a device that avoids water from flowing over the machine, to be used in the water-conducting washing machines.
- Figure 1 is the perspective view showing the overflow float.
- Figure 2 is the perspective view from the top showing the outer float.
- Figure 3 is the perspective view from below showing the outer float.
- Figure 4 is the view of the outer float from below.
- Figure 5 is the lateral, cross-section view of the outer float.
- Figure 6 is the perspective view from the top showing the inner float.
- Figure 7 is the perspective view from below showing the inner float.
- Figure 8 is the view of the inner float from below.
- Figure 9 is the lateral, cross-section view of the inner float.
- Figure 10 is the overall view of the safety device against overflow.
- Figure 11 is the cross section view of the safety device against overflow.
- the switch can be triggered at different times and the time required for the machine to detect the undesired amount of water is shortened by obtaining the water column in a much shorter time. Moreover, frequent calls for service are avoided by preventing the machine warnings due to momentary irregularities.
- the overflow float (1) comprises an outer float (2) and an inner float (3) placed inside the outer float chamber (5).
- the safety device against overflow (14) is formed by disposing the over flow float (1) into the float chamber (4) wherein one or more than one chutes (13) that ensure the transfer of the undesired water which may cause an overflow due to an excessive amount of intake water or due to the mounting of the machine in an inclined manner with respect to the ground plane, are provided on its upper section, and a triggering switch (10) is provided in said float chamber (4).
- the float chamber (4) is so formed that the outer float (2) can move freely in it and it is fixed to any point in the machine in such a manner that it can rest on the bottom of the machine/chassis.
- the switch (10) located in the float chamber (4) at a certain height from the bottom of said chamber (4) is actuated by the rising of the outer and inner floats (2,3) which are telescopically nested in one another or by the rising of only the inner float (3).
- the chutes (13) providing the transfer of the unwanted water that may lead to overflow, into the outer float chamber (5) are located at any point in the machine, above the float chamber said unwanted water is transferred to the outer float chamber (5) by means of the chutes (13) connected to hoses.
- the inner float (3) is provided with discharges (12) and bosses (9). As the difference of the diameter is minimum between the inner (3) and outer (2) floats, they adhere to each other due to the surface tension occurring as the result of unwanted water coming from the chutes (13).
- the purpose of the bosses (9) and discharges (12) is to provide a space at the bottom of the inner float (3) for the passage of the unwanted water. By virtue of these spaces (gaps), unwanted water easily enters below the inner float (3) and causes it to float. In case the difference between the diameters is too much, centering of the inner float (3) will be difficult, which in turn makes the actuation of the switch (10) more difficult.
- Numerous discharges (12) of various shapes are provided at the regions in proximity to the side of the inner float (3) in order that unwanted water coming over the inner float (3) can easily be transferred inside the outer float chamber (5).
- the top surface (6) of the inner float (3) is made inclined from the peak point towards the edge. Water can easily enter the gap created by the bosses (9) between the inner float (3) and the outer float chamber (5) by means of the bosses (8) provided on the bottom of the inner float (3). In this manner, the inner float (3) can freely float inside the outer float chamber (5) without adhering to its base.
- a hub (11) is provided on the upper surface (6) of the inner float (3), which provides the triggering of the switch (10) by conveying the buoyancy force of the water to the switch (10).
- a drainage outlet (7) is provided at the center of the outer float chamber (5) located inside the outer float (2).
- the bottom surface of the outer float chamber (5) is made with a gradient at a determined angle, by the manufacturer, towards the center of the outer float chamber (5) in order to avoid the unwanted water from collecting at one side and to facilitate the drainage of the unwanted water through the drainage hole (7).
- Said drainage outlet (7) may also be formed by the holes arranged at certain angles on the side of the outer float chamber (5). However, the preferred embodiment is to place it in the middle of the outer float chamber (5).
- the bottom surface of the outer float (2) can be inclined from the center towards the sides and the inner float (1) can be made in conformity with said form.
- the bottom of the outer float (2) is provided with channels (8) and bosses (15). Said channels (8) at the bottom of the outer float (2) are connected to the drainage hole (7) and facilitate the evacuation of water; whereas the bosses (15) prevent the adhesion of the outer float (2) to the bottom of the machine, and are used to enable the outer float (2) to rise on the vertical plane in the float chamber (4) easily. In this way, leakage, escaped water (due to system connections and potential holes) can easily enter below the overflow float (1) and contributes it buoyancy.
- the inner float (3) is located in the outer float chamber (5).
- the chamber at the bottom of the machine serves as a pool for the outer float (2) and the outer float chamber (5) similarly serves as a pool for the inner float (3).
- the switch (10) can communicate by the rising of the inner float (3) as well as of the inner and outer floats (2,3). In cases requiring the detection of the momentary overflow in a minimum time, the switch (10) is triggered by the im er float (3). When the switch (10) is triggered, the machine may stop or transmit a fault message.
- One of such situations is causing water to collect, when the machine is located in an inclined manner, towards any direction, i.e. to the left, to the right, to and fro; and the other is excessive water intake.
- the lateral movement of the inner float (3) located in the outer float chamber (5) is prevented by bringing the difference between the inner diameter of the outer float chamber (5) and the outer diameter of the inner float (3) to a minimum, and only the vertical, i.e. up-and down-movement of the inner float (3) within the outer float chamber (5) is allowed.
- the outer (2) and inner (3) floats can be made in various shapes, a circular shape is preferred.
- the overflow float (1) operates in two ways. First, upon the collecting of leakage, escaped water (due to system connections and potential holes) in the bottom/chassis of the machine, the overflow float (1) floats and triggers the switch
- the second way of operation is related to the collecting of the unwanted water that may lead to an overflow, within the outer float chamber (5) which has a much smaller volume, causing the floating of only the inner float
- the overflow float (1) may comprise an inner float (3) nested within more than one outer floats (2) of different diameters.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Level Indicators Using A Float (AREA)
- Superstructure Of Vehicle (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Measuring Volume Flow (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TR200002196 | 2000-07-26 | ||
TR200002196 | 2000-07-26 | ||
PCT/TR2001/000034 WO2002007581A1 (en) | 2000-07-26 | 2001-07-26 | Safety device against overflow |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1307129A1 true EP1307129A1 (en) | 2003-05-07 |
EP1307129B1 EP1307129B1 (en) | 2008-02-13 |
Family
ID=21622620
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01958808A Expired - Lifetime EP1307129B1 (en) | 2000-07-26 | 2001-07-26 | Safety device against overflow |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1307129B1 (en) |
AT (1) | ATE385729T1 (en) |
AU (1) | AU2001280423A1 (en) |
DE (1) | DE60132779T2 (en) |
TR (1) | TR200200809T1 (en) |
WO (1) | WO2002007581A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITTO20060212A1 (en) * | 2006-03-21 | 2007-09-22 | Bitron Spa | SAFETY SYSTEM ANTI-GLAZING FOR DISHWASHER MACHINE |
ES2352429T3 (en) * | 2007-03-14 | 2011-02-18 | Vestel Beyaz Esya Sanayi Ve Ticaret A.S. | DEVICE FOR OVERFLOW DETECTION. |
IT1401619B1 (en) * | 2010-08-25 | 2013-07-26 | Bitron Spa | SAFETY SYSTEM ANTI-GLAZING FOR WASHING APPLIANCES. |
TR201007807A2 (en) * | 2010-09-23 | 2011-02-21 | Vestel Beyaz Eşya Sanayi̇ Ve Ti̇caret Anoni̇m Şi̇rketi̇@ | Boiler outlet apparatus for washing machines. |
CN108042084A (en) * | 2018-01-22 | 2018-05-18 | 佛山市顺德区美的洗涤电器制造有限公司 | The base assembly of dish-washing machine |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1298747B1 (en) * | 1998-03-16 | 2000-02-02 | Smeg Spa | DISHWASHER OR WASHING MACHINE WITH ANTI-FLOODING DEVICE FUNCTIONALITY VERIFICATION ELEMENT |
DE19841372C1 (en) * | 1998-09-10 | 2000-02-17 | Miele & Cie | Safety device is for washing machines and dishwashers and has float-operated electrical switch to control water supply |
-
2001
- 2001-07-26 AT AT01958808T patent/ATE385729T1/en not_active IP Right Cessation
- 2001-07-26 EP EP01958808A patent/EP1307129B1/en not_active Expired - Lifetime
- 2001-07-26 DE DE60132779T patent/DE60132779T2/en not_active Expired - Lifetime
- 2001-07-26 AU AU2001280423A patent/AU2001280423A1/en not_active Abandoned
- 2001-07-26 WO PCT/TR2001/000034 patent/WO2002007581A1/en active IP Right Grant
- 2001-07-26 TR TR2002/00809T patent/TR200200809T1/en unknown
Non-Patent Citations (1)
Title |
---|
See references of WO0207581A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE60132779T2 (en) | 2009-02-05 |
TR200200809T1 (en) | 2002-08-21 |
AU2001280423A1 (en) | 2002-02-05 |
WO2002007581A1 (en) | 2002-01-31 |
EP1307129B1 (en) | 2008-02-13 |
ATE385729T1 (en) | 2008-03-15 |
DE60132779D1 (en) | 2008-03-27 |
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