• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Fluid dispensing device driven by pressure variations in a main circuit. The dispensing device comprises a hollow body (1), divided into a pressurization chamber (2) and a dispensing chamber (3) by means of means of converting the pressure variations of the pressurization chamber (2) into volume variations of the dispensing chamber (3), advantageously made as an elastomer (4) having a cavity that constitutes the dispensing chamber (3) itself, the pressurization chamber (2) being connected to an inlet tap (5) that presents a restriction (6) and ends in an inlet valve (13), and the dispensing chamber (3) to an intermediate section (7) of a secondary circuit that ends at each end in respective check valves (8) that extend the secondary circuit in a driving section (9) and a suction section (10), the latter connected to a reservoir (11) of product to be dispensed. Closing the inlet valve (13) leads to a reduction in the volume of the dispensing chamber (3) by compression of the elastomer (4), expelling the fluid to be dispensed. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2573341A1
    申请号:ES201431618
    申请日:2014-11-04
    公开日:2016-06-07
    发明作者:Cayetano José Ezequiel SEGURA MARTÍNEZ
    申请人:Cayetano José Ezequiel SEGURA MARTÍNEZ；
    IPC主号:
    专利说明:

    DESCRIPTION
    DISPENSING DEVICE FOR A FLUID OPERATED BY PRESSURE VARIATIONS IN A MAIN CIRCUIT

    The present invention relates to an intermittent dispenser of a fluid, which is controlled and operated by pressure variations in a main circuit of another fluid. The device operates automatically and autonomously, without the need for any external power supply and without requiring a specific control system.
    Its field of application is that of dispensing and dosing pumps, being specially adapted to automatically supply hygiene products such as 10 detergents, and deodorants in sanitary appliances, incorporation of chlorine in swimming pools, detergents in washing machines, antifouling in dishwashers, lubricants in hydraulic circuits, and in all those cases where a fluid, liquid or gas is available, subject to pressure variations in a main circuit, and the need to incorporate any other fluid, automatically, in a secondary circuit is presented. fifteen
    Background of the invention
    Numerous dispensing devices of the type in question are known. Thus, ES 2159392T3 describes a dosing device for adding a sterilizer to a water supply network in order to provide sterilized water to consumers. The device comprises a sterilizer tank and a control system that from 20 a flow measurement transmits the appropriate orders to maintain a predetermined concentration of sterilizer, operated by compressed air.
    Document ES 1049300U describes a disinfectant dispenser for sanitary appliances that uses a pump driven by a battery-powered motor. As in the previous case, an external energy source is required. 25
    Other devices that do not require external energy are also known. Thus, US 5,692,250 refers to the automatic dispensing of a disinfectant liquid in sanitary devices without a tank, of the type used in aviation. The energy to move the dispensing pump comes from the pressure variations of the on-board drinking water circuit, used for cleaning the toilet bowl. This dispensing pump 30 is connected after the circuit opening valve and poured into the toilet bowl, whereby the pressure varies between a zero value and the full static pressure of the
    main water circuit, which constitutes an excessively important and abrupt jump in pressure. This together with the mechanical constitution of the pump, a floating piston loaded with a spring, leads to a noisy operation and the appearance of constant breakdowns.
    Document ES 2377092B1 describes a device very close to the previous one, but adapted to the usual toilets with cistern. In this case, the impeller chambers of the pump both have an inlet and an outlet, which further complicates the mechanical and sealing problems of the floating pistons that constitute the heart of the system. The device is located, as in the previous case, behind the inlet and discharge valve, which gives rise to several problems:
    • The pressure jump between the static pressure of the main circuit and zero is too high 10 and, above all, abrupt.
    • The dispensing of the product occurs at the time of the opening of the discharge valve, so that the disinfectant action is very short and transitory, being swept by the subsequent discharge of the cleaning water from the main circuit. This is aggravated in the case of toilets without a cistern. fifteen
    Devices are also known that directly aspirate, from a reservoir, the fluid to be dispensed, such as that described in US 2009/0100579 A1, which uses a Venturi. This device operates continuously while there is flow in the main circuit, so the consumption of the fluid to be dispensed is very high, with regulation difficulties.
     Accordingly, it is an object of the present invention to have a dispensing device 20 that acts at the end of the discharge, by cutting off the flow in the main circuit.
     It is another object of the present invention to have a soft-acting dispensing device.
    And finally, it is another object of the present invention to have a simpler and more economical dispensing device, with no sealing problems. 25
    Description of the invention
     To achieve the proposed objectives, a dispensing device has been designed before the main circuit inlet valve. In this way, the dispensing device of the invention is always pressurized, generating the necessary pressure variations to its operation by means of a restriction arranged in the inlet tap 30 that connects the main circuit to the inlet valve. In the context of this document
    "restriction" means a section of circuit that has a diameter sized to cause an acceleration of the main fluid when the inlet valve is open. This diameter will usually be smaller than that of the rest of the main circuit, and its dimensioning will be defined, in addition to the conditions of the device itself, by the loss of load of the inlet valve. The basis of the invention is to replace all or none of the prior art pressure jump with a lower pressure jump in absolute value and smooth transition, the dispensing occurring at the end of the discharge, when the main circuit, without flow, It is at maximum pressure.
    Bernoulli's theorem that defines the behavior of fluids in a conduction states that; 10

    P being the pressure, v the velocity of the fluid, d the density of the fluid, g the acceleration of gravity, and k a constant. fifteen
    In this way, if we introduce a restriction in the inlet tap of the main circuit, before the inlet valve, the device will always be pressurized, either with static pressure when there is no flow, or with a pressure depending on the speed of passage of the fluid when the main circuit inlet valve is open. The presence of a restriction makes it possible to have a sufficient pressure jump to operate the device, 20 but not excessive, optimizing its operation.
    The dispensing part of the device is similar to that described in the first variant (Figure 1) of US 5,692,250 and comprises a hollow body, advantageously cylindrical, divided into a pressurization chamber and a dispensing chamber by means of converting the variations of pressure of the pressurization chamber in variations of 25 volume of the dispensing chamber, the pressurization chamber being connected to the inlet tap in the area of the restriction and the dispensing chamber to a secondary circuit that includes the reservoir of fluid to be dispensed and a pair of non-return valves that ensure its circulation according to a usual arrangement in hydraulics.
    Advantageously, the means of converting the pressurization chamber pressure variations into volume variations of the dispensing chamber will be constituted by a cylindrical elastomeric part having a cavity that constitutes the dispensing chamber itself. Such a solution is unable to withstand all or nothing pressure jump from the main circuit but, surprisingly, works effectively and smoothly when it remains constantly pressurized, with controlled pressure variations. The explanation is not only in the absolute values of the pressure jump, but in that when these occur due to flow variations, the fluid inertia itself establishes progressive pressure changes.
    Although the previous variant, in elastomer, of the means of converting variations of pressure into volume variations presents an evident synergy with the use of a restriction, conventional means such as floating pistons, bellows or the like can be used in those cases in which the high pressures or chemical aggressiveness of the fluid to be dispensed against advise against the use of an elastomer. The advantages of the dispensing device of the invention are definitive, as follows:
    • The dispensing of the product takes place when closing the inlet valve, instead of opening it as in the prior art. This allows, for example in toilets without a tank, the product remains in its cup.
    • Presents smooth and quiet operation
    • In elastomer version it has a great mechanical simplicity, low price and long duration. twenty Brief description of the drawings
    To complement the above description, and in order to help a better understanding of the features of the invention, a detailed description of a preferred embodiment will be carried out, based on a set of drawings that are attached to this specification. descriptive and where, for guidance and non-limiting purposes, 25 the following has been represented.
    Figure 1 shows a schematic section of the device of the invention with the inlet valve closed.
    Figure 2 shows a schematic section of the device of the invention with the inlet valve open. 30
    Figure 3 shows an application to a sanitary appliance with cistern from an external product container to be dispensed.
    Figure 4 shows an application to a sanitary appliance incorporating the reservoir of product to be dispensed inside the tank.
    Figure 5 shows in schematic a variant that uses a floating piston loaded by spring.
    Figure 6 shows in schematic a variant that uses a bellows.
    Figure 7 shows in schematic a variant that uses a spring loaded membrane.
    Figure 8 shows in schematic a variant using an elastomer provided with a cavity.
    In the previous figures, the numerical references correspond to the following parts and elements:
    1 hollow body
    2 Pressurization chamber 15
    3 Dispensing chamber
    4 Elastomer
    5 Inlet tap
    6 Restriction
    7 Intermediate section of the secondary circuit 20
    8 Non-return valves
    9 Drive section of the secondary circuit
    10 Secondary circuit suction section
    11 Deposit
    12 Connection to main circuit 25
    13 Inlet valve
    14 Float
    15 Cistern
    16 Shooter
    17 Bottom valve
    18 Floating piston 5
    19 Bellows
    20 Membrane
    Detailed description of a preferred embodiment
    As can be seen in Figures 1 and 2, the dispensing device of the invention comprises a hollow body (1), advantageously cylindrical, divided into a pressurization chamber (2) and a dispensing chamber (3) by means of an elastomer ( 4) which has a cavity that constitutes the dispensing chamber itself (3), the pressurization chamber (2) being connected to an inlet tap (5) presenting a restriction (6), and the dispensing chamber (3) to a section Intermediate (7) of a secondary circuit that ends at each end in two non-return valves (8) that extend the secondary circuit in a drive section (9) and a suction section (10), itself connected to a tank ( 11) of product to be dispensed. The inlet tap (5) starts at a connection to the main circuit (12) and ends at an inlet valve (13).
    Referring now to Figures 3 and 4, we will describe the particularities of application of the dispensing device of the invention to a toilet with tank (15), in which, particularly the general case, the inlet valve (13) is actuated by a float (14) and a handle (16) actuates a bottom valve (17) to cause the discharge of the tank (15) in a conventional manner. The tank (11) can be incorporated into the tank (15) or be outside it. In the latter case, a single tank (11) can feed a plurality of toilets, with or without a cistern. 25
     The operation of the device is as follows. When the inlet valve (13) opens, a flow is established in the restriction (6) which causes a pressure drop. Consequently, the elastomer (4) expands, increasing the volume of the dispensing chamber (3), which causes it to be filled from the reservoir (11) through the suction section (10) of the secondary circuit. See figure 2. 30
    When the inlet valve (13) closes, the pressure increases in the restriction (6) and in the pressurization chamber (2), compressing the elastomer (4), which reduces the volume of the dispensing chamber (3) and causes the injection of the product to be dispensed in the drive section (9) of the secondary circuit. See figure 1.
    As for the industrial embodiment, a series of variants will be apparent to the person skilled in the art, who, respecting the essentiality of the invention, adapts the execution of the device to the characteristics of the fluids to be handled, the available pressures, and the quantity of fluid to be dispensed. Thus, the means of converting the pressurization chamber pressure variations into volume variations of the dispensing chamber will be advantageously carried out by means of an elastomer (4) but, according to needs, a spring loaded floating piston (18) could be used (Figure 5), a bellows (19) or elastic lung, (Figure 6), a membrane (20), (Figure 7) or any functionally similar mechanism. Advantageously, the device of the invention will be incorporated into the inlet tap (5), itself attached to the inlet valve (13) and to the float (14) to form a monobloc assembly that replaces conventional devices in existing installations 15 ( Figures 1, 3, and 4).
    The dimensioning of the restriction (6) can be easily optimized by the trial and error method applied to the specific conditions of the system.
    权利要求:
    Claims (5)
    [1]
    1. A fluid dispensing device, driven by pressure variations in a main circuit, characterized by understanding;
    - an inlet tap (5), provided with a restriction (6), and terminated at one end in a connection to the main circuit (12) and in the opposite by an inlet valve 5 (13);
    - a hollow body (1), divided into a pressurization chamber (2) and a dispensing chamber (3) by means of converting the pressure variations in the pressurization chamber (2) into volume variations in the dispensing chamber ( 3), the pressurization chamber (2) being connected to the 10-inlet tap (5) in the area of the restriction (6), and the dispensing chamber (3) to the intermediate section (7) of a secondary circuit, said section being terminated intermediate (7) at each end in two non-return valves (8) that extend in a supply section (9) and a suction section (10), the latter connected to a reservoir (11) containing the fluid to be dispensed, fifteen
    in such a way that the dispensing of the fluid occurs at the time of the closing of the inlet valve (13).
    [2]
    2. A fluid dispensing device, driven by pressure variations of a main circuit, according to claim 1, characterized in that the means of converting the pressure variations of the pressurization chamber 20 (2) into volume variations of the dispensing chamber (3) are made as an elastomer (4) that has a cavity that constitutes the dispensing chamber (3) itself.
    [3]
    3. A fluid dispensing device, driven by pressure variations of a main circuit, according to claim 1, characterized in that the means of converting the pressure variations of the pressurization chamber (2) into volume variations of The dispensing chamber (3) is made by a floating piston (18) loaded by spring.
    [4]
    4. A fluid dispensing device, driven by pressure variations of a main circuit, according to claim 1, characterized in that the means of converting the pressure variations of the pressurization chamber
    (2) in variations of volume of the dispensing chamber (3) they are carried out by means of a bellows (19) or elastic lung.
    [5]
    5. A fluid dispensing device, driven by pressure variations of a main circuit, according to claim 1, characterized in that the means of converting the pressure variations of the pressurization chamber 5 (2) into volume variations of the dispensing chamber (3) are made by a spring loaded membrane (20).

    10
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    同族专利:
    公开号 | 公开日
    EP3216928A4|2018-08-01|
    WO2016071549A1|2016-05-12|
    EP3216928A1|2017-09-13|
    US20170314248A1|2017-11-02|
    ES2573341B1|2017-01-18|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB191418916A|1914-08-21|1915-08-05|Geoffrey Murton Gill|Improvements in Apparatus for Disinfecting Water Closets, Urinals and the like.|
    US3254797A|1965-03-04|1966-06-07|Charles R Porter|Chemical dispenser|
    FR1494968A|1966-08-04|1967-09-15|Device for dispensing a dose of liquid|
    DE2439821A1|1974-08-20|1976-04-08|Rost & Soehne Georg|Pressure flushing system with disinfectant dispenser - has piston system for injecting disinfectant at end of flushing phase|
    FR2498656B1|1981-01-28|1983-09-02|Hyco Aulas|
    GB2248858B|1990-10-17|1994-04-27|Metra Oy Ab|Vacuum toilet system with treated rinse liquid|
    GB2453940A|2007-10-23|2009-04-29|Moshe Buhbut|Device for adding cleansing material to a cistern|
    FR2970487A1|2011-01-18|2012-07-20|Jean Pierre Rizzo|Sanitary product vending device for mounting on side of water pressure tank to clean interior surface of basin of hydro-flushing toilet in e.g. public places, has protective cover that periodically covers adjusting screw and nut|WO2020161702A1|2019-02-04|2020-08-13|Gigi Victor|A toilet sanitatary system|
    法律状态:
    2017-01-18| FG2A| Definitive protection|Ref document number: 2573341 Country of ref document: ES Kind code of ref document: B1 Effective date: 20170118 |
    2017-02-14| PC2A| Transfer of patent|Owner name: NUCLEO LOMEDA S.L. Effective date: 20170208 |
    优先权:
    申请号 | 申请日 | 专利标题
    ES201431618A|ES2573341B1|2014-11-04|2014-11-04|DISPENSING DEVICE FOR A FLUID OPERATED BY PRESSURE VARIATIONS IN A MAIN CIRCUIT|ES201431618A| ES2573341B1|2014-11-04|2014-11-04|DISPENSING DEVICE FOR A FLUID OPERATED BY PRESSURE VARIATIONS IN A MAIN CIRCUIT|
    US15/523,096| US20170314248A1|2014-11-04|2015-10-30|Fluid dispensing device actuated by pressure variations in a main circuit|
    PCT/ES2015/070783| WO2016071549A1|2014-11-04|2015-10-30|Fluid dispensing device actuated by pressure variations in a main circuit|
    EP15856383.3A| EP3216928A4|2014-11-04|2015-10-30|Fluid dispensing device actuated by pressure variations in a main circuit|
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