BRPI1103754A2

BRPI1103754A2 - sealing mechanism for water registers

Info

Publication number: BRPI1103754A2
Authority: BR
Inventors: Cartolano Ruy Botti Jr
Original assignee: Duratex Sa
Priority date: 2011-08-24
Filing date: 2011-08-24
Publication date: 2013-07-30
Also published as: BRPI1103754B1

Abstract

"MECANISMO DE VEDAÇçO PARA REGISTROS HIDRÁULICOS". O mecanismo de vedação (M) compreende: uma sede anelar (20) assentada contra uma parede divisória interna (14) de um corpo (10) do registro hidráulico; um elemento de vedação (30) assentado contra a seder anelar (20) e sobre ela radialmente deslocável entre uma posição fechada, de bloqueio da sede anelar (20), e posições abertas, comunicando aberturas de entrada (11) e de saída (12) do corpo (10), através da sede anelar (20) e de uma abertura passante (14a) da parede divisória interna (14); um mancal esférico (40) retido na abertura auxiliar (13); e uma haste de acionamento (50), tendo uma porção esférica mediana (51), alojada no mancal esférico (40), uma porção de pega (52) projetando-se da abertura auxiliar (13), e uma porção de engate (53), tendo um extremo livre (54) acoplado ao elemento de vedação (30), para desloca-lo, entre à posição fechada e as posições abertas, quando do deslocamento angular radial da porção de pega (52)."SEALING MECHANISM FOR HYDRAULIC RECORDS". The sealing mechanism (M) comprises: an annular seat (20) seated against an internal partition wall (14) of a hydraulic register body (10); a sealing element (30) seated against and about radially movable annular seat (20) between a closed, annular seat locking position (20), and open positions, communicating inlet (11) and outlet (12) openings ) of the body (10) through the annular seat (20) and a through opening (14a) of the internal partition wall (14); a ball bearing (40) retained in the auxiliary opening (13); and a drive rod (50) having a median spherical portion (51) housed in the spherical bearing (40), a handle portion (52) protruding from the auxiliary opening (13), and a coupling portion (53). ) having a free end (54) coupled to the sealing member (30) to move it between the closed position and the open positions upon radial angular displacement of the handle portion (52).

Description

"MECANISMO DE VEDAQAO PARA REGISTROS HIDRAULIC〇S〃 Campo da invengao"SEALING MECHANISM FOR HYDRAULIC RECORDS" Field of Invention

Refere-se a presente invengao a um mecanismo de vedagao para registros hidraulicos utilizados para prover, por cieslocamento angular de um manipulo, ο controle manual do fIuxo de agua a aparelhos hidraulicos diversos, tais como bicas ou torneiras. Tecnica anteriorThis invention relates to a sealing mechanism for hydraulic registers used to provide, by angularly displacing a handle, the manual control of water flow to various hydraulic apparatus such as spouts or taps. Previous Technique

Os conhecidos mecanismos de veciagao de acionamento manual, projetados para controlar ο fornecimento de agua a bicas, torneiras e outros aparelhos hidraulicos, sao montados na abertura auxiliar de um corpo tubular de registro, provido das convencionais aberturas de entrada e de saida de liquido, dito corpo tubular sendo ainda internamente provido de uma sede de vedagao, operativamente associada a um vedante que e deslocado, em diregao axial, entre posigoes de fechamento e de abertura do registro, posigoes essas nas quais ο vedante e respectivamente assentado e afastado da sede de vedagao. Apesar desses conhecidos mecanismos de vedagao permitirem opera?5es de fechamento e abertura do registro, garantindo ο funcionamento dos aparelhos hidraulicos, eles apresentam construgao complexa, para permitir que ο deslocamento rotacional, de uma haste de acionamento carregando um volante, seja transformado no deslocamento axial do elemento vedante em relagao a sede de vedagao interna ao corpo tubular do registro.The well-known hand-operated venting mechanisms designed to control the supply of water to spouts, taps and other hydraulic devices are mounted in the auxiliary opening of a tubular registration body provided with conventional liquid inlet and outlet openings, said The tubular body is further internally provided with a sealing seat operatively associated with a sealing which is moved axially between closing and opening positions of the record, which positions are sealed and respectively seated and spaced from the sealing seat. . Although these well-known sealing mechanisms allow for closing and opening operations of the register, ensuring the operation of the hydraulic apparatus, they feature complex construction to allow the rotational displacement of a drive rod carrying a handwheel to be transformed into axial displacement. of the sealing member with respect to the sealing seat internal to the tubular body of the register.

Dentre as conhecidas construgoes, do tipo acima citado, pode ser considerada aquela mais comum e segundo a qual a haste de acionamento e provida de uma porgao roscada, a ser acoplada a uma correspondente porgao interna roscada de uma porca-castelo, montada na abertura auxiliar do corpo tubular do registro-Among the known constructions of the above type, one can be considered the most common and according to which the drive rod is provided with a threaded portion to be coupled to a corresponding threaded internal portion of a castle nut mounted in the auxiliary opening of the tubular body of the

Entretanto7 as sucessivas opera?5es de abertura e de fechamento, desses mecanismos de vedagao conhecidos, tendem a provocar um acentuado desgaste mecanico entre οHowever, the successive opening and closing operations of these known sealing mechanisms tend to cause marked mechanical wear between

acoplamento definido pelas porgoes roscadas da haste de acionamento e da porca-castelo^ comprometendo a operagao do mecanismo e, conseqiientemente, do registro hidraulico. Alem do inconveniente acima citado, deve ser observado que na referida Solugaof na qual a haste de acionamento e rosqueada a porca-castelo, ο grau de compressao do elementο vedante contra a sede de vedagao e definido pelo aperto dado, pelo usuario, a〇 conjunto volante-haste de acionamento, quando do fechamento do registro. Esse si sterna operacional acaba por conduzir a substituigao prematura do conjunto de vedagao ou do pr0pri〇 registro, em razao de repetidas operagoes de fechamento do registro, com aplicagao de excessiva compressao do vedante contra a sede de vedagao.coupling defined by the threaded portions of the drive rod and the castle nut ^ compromising the operation of the mechanism and, consequently, of the hydraulic register. In addition to the aforementioned drawback, it should be noted that in said Solugaof in which the drive rod is threaded the bonnet nut, the degree of compression of the sealing member against the sealing seat is defined by the tightness given by the user to the assembly. flywheel when the register is closed. This operating system ultimately leads to premature replacement of the seal assembly or pre-registration due to repeated registration closing operations with excessive compression of the seal against the seal seat.

Outra conhecida solugao construtiva, aplicada ao mecanismo de vedagao de registros hidraulicos, tem ο elemento de vedagao definido por uma primeira pastilha cerairiica, internamente retida no registro hidraulico, para def inir a sede de vedagao desse ultimo e que e provida de pelo menos um furo passante, geralmente excentrico, sendo que sobre dita primeira pastilha ceramica e assentada uma segunda pastilha ceramica, tambem provida de pelo menos um furo passante, e acoplada ao extremo interno da haste de acionamento, de modo a poder ser girada entre p〇sigoes angulares de abertura e de fechamento do registro, nas quais 〇s furos passantes das duas past土Ihas sa〇, respectivamente, alinhados e defasados entre si.Another known constructional solution applied to the hydraulic register sealing mechanism has the sealing member defined by a first ceramic insert internally retained in the hydraulic register to define the latter sealing seat and which is provided with at least one borehole. generally eccentric, wherein on said first ceramic insert is seated a second ceramic insert, also provided with at least one through-hole, and coupled to the inner end of the drive rod, so that it can be rotated between angle positions of one another. opening and closing of the register, in which the through holes of the two tabs are respectively aligned and offset from each other.

Apesar dessa outra conhecida solugao construtiva de mecanismo de vedagao permitir adequadas operag5es de abertura e de fechamento do registro, utilizando element〇s de vedagao resistentes ao desgaste, ela ainda apresenta uma construgao relativamente onerosa, exigindo a provisao de complexos meios de transmissao para prover 〇 necessario assentamento miituo, deslizante e estanque, entre a pastilha movel, que constitui ο vedante, e a pastilha fixa que constitui a sede de vedagao.Although this other known sealing mechanism construction solution allows for proper opening and closing operations of the register using wear-resistant sealing elements, it still has a relatively costly construction, requiring the provision of complex transmission means to provide Slip-tight watertight seating is required between the sealing movable insert and the sealing seat.

Essa conhecida construgao exige ainda que as operagoes de abertura e fechamento sej am feitas por meio de rotagao da haste de acionamento, mesmo que por um angulo de giro reduzido em determinadas aplicagoes onde nao e exigido um fino controle do fIuxo de liquido. Nao e possivel obter ο deslocamento operacional do vedante por movimentos outros que nao ο de giro da haste de acionamento.This well-known construction further requires that the opening and closing operations be performed by rotating the drive rod, even by a reduced turning angle in certain applications where fine liquid flow control is not required. It is not possible to obtain the operating displacement of the seal by motions other than rotation of the drive rod.

Essa conhecida construgao anterior tambem nao fornece, ao usuario-operador do registro, uma clara indicagao de que ο vedante se encontra na posigao de registro fechado. Essa condigao operacional e definida, muitas vezes, apenas por um batente de f im de curso, η em sempre alcangado no uso cotidiano, ou apenas pela propria observagao do usuario em relagao ao fIuxo de liquido liberado pelo registro. Suiuario da invengaoThis well-known prior construction also does not provide the registry operator with a clear indication that the seal is in the closed registration position. This operating condition is often defined only by an end stop, always attained in everyday use, or only by the user's own observation of the liquid flow released by the registry. Suiuario of the invention

Em fungao dos inc〇nvenientes e das limitagoes das s〇lugoes conhecidas, a presente invengao temr como um objetivo generico, a provisao de um mecanismo de vedagao para registros hidraulicos, que apresente uma construgao simples e robusta, de facil fabricagao, com niimero reduzido de componentes e que possa ser operado por meio de deslocamento angular de uma haste de acionamento^ em diferentes diregoes radiais, entre uma posigao de fechamento e posi?5es de abertura progressiva do registro.In light of the drawbacks and limitations of known places, the present invention will have as a general objective the provision of a sealing mechanism for hydraulic registers, which presents a simple and robust construction, easy to manufacture, with reduced number. which can be operated by angular displacement of a drive rod ^ in different radial directions, between a closing position and progressive opening positions of the register.

E ainda um objetivo adicional da presente invengao, a provisao de um mecanismo de vedagao, tal como acima mencionado, e que permita ao usuario-operador ter uma clara indicagao de que ο registro se encontra na posigao fechada, sem necessitar observar se ainda ocorre liberagao do fIuxo de agua.It is a further object of the present invention to provide a sealing mechanism, as mentioned above, that allows the user-operator to have a clear indication that the record is in the closed position without needing to observe whether release still occurs. of the flow of water.

O mecanismo de vedagao em questao e aplicado em registros hidraulicos do tipo que apresenta um corpo com aberturas de entrada e de saida, uma parede divis0ria interna, provide de uma abertura passante e comunicando ditas aberturas, e uma abertura auxiliar.The sealing mechanism in question is applied to hydraulic registers of the type having a body with inlet and outlet openings, an internal partition wall, providing a through opening and communicating said openings, and an auxiliary opening.

De acordo com a invengao, ο mecanismo de vedagao compreende: uma sede anelar, tendo uma face extrema assentada e retida contra a parede divisoria interna do corpo e uma face extrema oposta, sendo a sede anelar mantida em comunicagao fluida com a referida abertura passante; um elemento de vedagao tendo uma face de contato assentada contra a face extrema oposta da sede anelar e a ser sobre ela radialmente deslocada entre uma posigao fechada, bloqueando a passagem de liquido atraves da sede anelar, e p〇sigoes abertas, nas quais permite a comunicagao fluida entre as aberturas de entrada e de saida, atraves da sede anelar. Um mancal esferico e alojado e retido no interior da abertura auxiliar do corpo do registro e apresenta uma abertura axial interna v〇ltada para a sede anelar sendo ainda provide uma haste de acionamento, tendo uma porgao esferica mediana, alo j ada no interior do mancal esf erico e da qual se projetam uma porgao de pega, externa a abertura auxiliar7 e uma porgao de engate, tendo um extremo livre acoplado ao elemento de vedagao, deslocando-o radialmente, entre a posicpao f echada e as p〇 si goes abertas, pelo des locamento angular radial da porgao de pega da haste de acionamento. A construgao acima definida permite que a movimentagao angular da porgao de pega da haste de acionamento, em qualquer diregao radial em relagao ao eixo geometrico da sede anelar, produzira um deslocamento radial do elemento vedante em relagao a sede anelar, no sentido fechar ou de abrir ο registro hidraulico.According to the invention, the sealing mechanism comprises: an annular seat having an end face seated and retained against the inner partition wall of the body and an opposite end face, the annular seat being maintained in fluid communication with said through aperture; a sealing member having a contact face seated against the opposite extreme face of the annular seat and being radially displaced thereon between a closed position, blocking the passage of liquid through the annular seat, open sections, in which it allows communication flow between the inlet and outlet openings through the annular seat. A ball bearing is housed and retained within the auxiliary opening of the registration body and has an inner axial opening sealed to the annular seat and further provides a drive rod having a median spherical portion housed within the bearing. spherical and from which a handle portion is projected external to the auxiliary aperture 7 and a coupling portion having a free end coupled to the sealing member radially displacing it between the closed position and the open legs, by the radial angular displacement of the handle portion of the drive rod. The above defined construction allows the angular movement of the drive rod handle portion in any radial direction with respect to the geometrical axis of the annular seat will produce a radial displacement of the sealing member relative to the annular seat in the close or open direction. ο hydraulic register.

A haste de acionamento pode ter sua porgao esferica mediana provida de meios para estabiliza—la na posigao de registro fechado, dando ao usuario-operador uma clara indicagao de que ο registro se encontra na condigao fechada.The drive rod may have its median spherical portion provided with means for stabilizing it in the closed registration position, giving the user-operator a clear indication that the registration is in the closed condition.

Breve descrigao dos desenhosBrief Description of Drawings

A invengao sera a seguir descrita, fazendo-se referencias aos desenhos anexos, dados a titulo de exemplo de uma possivel concretizagao da invengao e nos quais:The invention will be described below with reference to the accompanying drawings, given by way of example of a possible embodiment of the invention and in which:

A figura 1 represents uma vista em perspective explodida dos elementos definidores do mecanismo de vedagao em questao, a ser montado em um registro;Figure 1 represents an exploded perspective view of the defining elements of the sealing mechanism in question to be mounted in a register;

A figura 2 e represents uma vista em perspective do mecanismo da figure 1, porem na condigao montada, na quel e semelhante aquela da figura 1, porem ilustrando ο mecanismo em uma condigao montada, antes de sua aplicagao no interior do corpo de um registro;Fig. 2 is a perspective view of the mechanism of Fig. 1, however, in the assembled condition, which is similar to that of Fig. 1, but illustrating the mechanism in an assembled condition, prior to its application within the body of a record;

A figura 3 represents uma vista em perspectiva de uma possivel construgao de registro provido do mecanismo de vedagao, ilustrando, em linhas solidas, a haste de acionamento na posigao de registro fechado e, em linhas interrompicias^ a haste de acionamento em diferentes posig5es de registro aberto;Figure 3 is a perspective view of a possible register construction provided with the sealing mechanism, illustrating in solid lines the drive rod in the closed registration position and in interrupted lines the drive rod in different registration positions. Open;

A figura 4 represents uma vista em corte longitudinal do registro ilustrado na figura 3, ilustrando a haste de acionamento na posigao de registro fechado; As figures 4A e 4 B represent am vistas ampliadas de parte do registro hidraulico ilustrado na figura 4, ilustrando a haste de acionamento nas posi?5es de registro fechado e aberto, respectivamente; eFig. 4 is a longitudinal sectional view of the register illustrated in Fig. 3 illustrating the drive rod in the closed register position; Figures 4A and 4B show enlarged views of part of the hydraulic register illustrated in Figure 4, illustrating the drive rod in closed and open registration positions, respectively; and

A figura 5 representa uma vista semelhante aquela da figura 4, porem ilustrando, em detalhe ampliado, somente a regiao de acoplamento entre a porgao esferica mediana da haste de acionamento e 〇 mancal esferico do mecanismo de vedagao em questao.Figure 5 is a view similar to that of figure 4, but illustrating in greater detail only the coupling region between the median ball portion of the drive rod and the ball bearing of the sealing mechanism in question.

Descrigao da c〇nfiguragao ilustradaDescription of the illustrated configuration

Conforme ja acima mencionado e ilustrado nas figures dos desenhos anexos, ο mecanismo de vedagao M em questao e aplicado em um registro hidraulico do tipo que compreende um corpo 10, tubular, geralmente fundido em qualquer Iiga metalica adequada para esse tipo de aplicagao e tendo uma abertura de entrada 11, a ser conectada ao terminal hidraulico de uma rede de alimentagao (nao ilustrada), e uma abertura de saida 12 at raves da qual pode ser liberado ο fIuxo de liquido a ser controlado pelo registro.As already mentioned above and illustrated in the figures of the accompanying drawings, the sealing mechanism M in question is applied to a hydraulic register of the type comprising a tubular body 10 generally fused to any metal alloy suitable for such application and having a inlet port 11 to be connected to the hydraulic terminal of a supply network (not shown), and an outlet port 12 up to raves from which it can be released to the liquid stream to be controlled by the register.

〇 corpo 10 e do tipo u sua lmente montado at raves de um f uro praticado em bancadas de pi as ou de lavatorios, podendo ser ainda montado diretamente em uma parede de edificagao, dito corpo 10 tendo ainda uma abertura auxiliar 13, preferivelmente provida de uma rosea interna 13a, e uma parede divis0ria interna 14, separando as aberturas de entrada 11 e de saida 12 e sendo provida de uma abertura passante 14a, cuj〇 eixo geometrico X e, geralmente, comum ao eixo geometrico da abertura auxiliar 13 e que comunica a abertura de entrada 11 com a abertura de saida 12.The housing 10 is of the u-type only mounted to a hole in a sink or washbasin countertop, and may be mounted directly to a building wall, said housing 10 having an auxiliary opening 13, preferably provided with an inner rose 13a, and an inner partition wall 14 separating the inlet 11 and outlet 12 openings and being provided with a through aperture 14a, whose geometrical axis X is generally common to the geometrical axis of the auxiliary aperture 13 and which communicates inlet port 11 with outlet port 12.

A abertura auxiliar 13 e geralmente fechada por uma porca-castelo 15, provida de uma porgao de rosea externa 15a, a ser engatada com a rosea interna 13a, da abertura auxiliar 13.The auxiliary opening 13 is generally closed by a castle nut 15, provided with an outer rose portion 15a, to be engaged with the inner rose 13a of the auxiliary opening 13.

〇 mecanismo de vedagao M em questao compreende uma sede anelar 20, preferivelmente na forma de uma pastilha em material ceramico e tendo uma face extreme 21, assentada e retida contra a parede divisoria interna 14 do corpo 10, e uma face extrema oposta 22. A sede anelar 20 e posicionada, em relagao a parede divisoria interna 14, de modo ser mantida em comunicagao fluida com a abertura passante 14a dessa Ultima·The sealing mechanism M in question comprises an annular seat 20, preferably in the form of a ceramic insert and having an end face 21, seated and retained against the inner partition wall 14 of body 10, and an opposite end face 22. A annular seat 20 is positioned relative to the internal partition wall 14 so that it is maintained in fluid communication with the through opening 14a of that latter.

〇 mecanismo de vedagao M compreende ainda um elemento de vedagao 30, tambem preferivelmente construido em forma de pastilha ceramica, geralmente de contorno circular e tendo uma face de contato 31 assentada contra a face extrema oposta 22 da sede anelar 20 e a ser sobre ela radialmente deslocado entre uma posigao fechada, bloqueando a passagem de liquido atraves da sede anelar, conforme ilustrado nas figuras 4 e 4Af e p〇sigoes abertas, nas quais permite a comunicaςβο fluida entre as aberturas de entrada 11 e de saida 12, atraves da sede anelar 20 e da abertura passante 14a, conforme ilustrado na figura 4B.The sealing mechanism M further comprises a sealing member 30, also preferably constructed of ceramic insert, generally circular in shape and having a contact face 31 seated against the opposite extreme face 22 of annular seat 20 and being radially thereon. It is moved between a closed position, blocking the passage of liquid through the annular seat, as shown in FIGS. 4 and 4Af open sections, in which it allows fluid communication between inlet 11 and outlet 12 through annular seat 20 and the through aperture 14a as shown in Figure 4B.

Na construgao ilustrada, a face extrema oposta 22 da sede anelar 20 compreende uma porgao anelar 22a e umaIn the illustrated embodiment, the opposite end face 22 of the annular seat 20 comprises an annular portion 22a and a

pluralidade de porg5es radiais 22b, coplanares a porgao anelar 22a e projetando-se para fora dessa iiltima, sendo que a face de contato 31 do elemento de vedagao 30 apresenta um contorno circular correspondente ao contorno externo da porgao anelar 22a da face extrema oposta 22 da sede anelar 20.plurality of radial portions 22b, coplanar to the annular portion 22a and projecting outwardly thereof, with the contact face 31 of the sealing member 30 having a circular contour corresponding to the outer contour of the annular portion 22a of the opposite extreme face 22 of the ring seat 20.

A face de contato 31 do elemento de vedagao 30 e anelar, com contorno interno correspondente ao contorno interno da porgao anelar 22a da face extrema oposta 22 da sede anelar 20 e circundando um rebaixo mediano 33, em forma de calota esferica, provido na face de contato 31 do elemento de vedagao 30, conforme pode ser observado pelas figuras 4, 4A e 4B.The contact face 31 of the sealing member 30 is annular, with an inner contour corresponding to the inner contour of the annular portion 22a of the opposite extreme face 22 of the annular seat 20 and surrounding a spherical cap-shaped median recess 33 provided on the end face. contact 31 of the sealing member 30 as can be seen from figures 4, 4A and 4B.

Com a construgao ilustrada, ο elemento de vedagao 30 pode ser deslocado em qualquer diregao radial e ortogonal em relagao ao eixo geometrico da sede anelar 20, entre uma posigao de elemento de vedagao 30 fechado, na qual a face de contato 31 desse ultimo permanece integralmente assentada contra a porgao anelar 22a da face extrema oposta 22 da sede anelar 20, fechando completamente essa Ultima, ou sejaf ο registro hidraulico fechado, e posig5es de elemento de vedagao 30 aberto, total ou parcialmente, nas quais a face de contato 31 do elemento de vedagao 30 encontra-se deslocada radialmente, apoiando-se em algumas das porgoes radiais 22b da face extrema oposta 22 da sede anelar 20.With the construction illustrated, the sealing member 30 may be moved in any radial and orthogonal direction with respect to the geometrical axis of the annular seat 20 between a sealing member position 30, in which the contact face 31 of that latter member remains integrally. seated against the annular portion 22a of the opposite end face 22 of the annular seat 20, completely closing the latter, i.e. the closed hydraulic register, and sealing member positions 30 fully or partially open, in which the contact face 31 of the member 30 is radially displaced, abutting on some of the radial portions 22b of the opposite end face 22 of the annular seat 20.

Nas posicjoes abertas do elemento de vedagao 30, seu rebaixo mediano 33, de formato esferico, define um defletor curvo para imprimir uma alteragao de cerca de 180° ao fIuxo de liquido que passa pela sede anelar 2〇, encaminhando—〇,com menor perda de carga, para a saida 12 do corpo 10 do registro.At the open positions of the sealing member 30, its spherically shaped median recess 33 defines a curved deflector to effect a change of about 180 ° to the flow of liquid passing through the annular seat 2〇, leading to perda with less loss. of charge, to the output 12 of the body 10 of the register.

Conforme melhor ilustrado nas figuras 4, 4A e 4B, um mancal esferico 4 0 e alojado e retido no interior da abertura auxiliar 13 e apresenta uma abertura axial interna 41, voltada para a sede anelar 20 e tendo uma borda periferica interna 4 la, em forma de arestaAs best illustrated in Figures 4, 4A and 4B, a ball bearing 40 is housed and retained within the auxiliary opening 13 and has an inner axial opening 41, facing annular seat 20 and having an inner peripheral edge 4 la, in edge shape

circunferencial arredondada, cu j a fungao sera descrita mais adiante.circumferential, where the function will be described below.

〇 mecanismo de vedagao M compreende ainda uma haste de acionamento 50, tendo uma porgao esferica mediana 51, alojada no interior do mancal esferico 40 e da qual se projetam, radialmente, uma porgao de pega 52, externa a abertura auxiliar 13, e uma porgao de engate 53, tendo um extremo livre 54 acoplado ao elemento de vedagao 30, de modo a desloca—lo, radialmente, entre a posigao fechada e as posigoes abertas, pelo deslocamento angular radial da porgao de pega 52,The sealing mechanism M further comprises a drive rod 50 having a median ball portion 51 housed inside the ball bearing 40 and from which radially a handle portion 52 external to the auxiliary opening 13 and a portion 53 having a free end 54 coupled to the sealing member 30 so as to radially displace it between the closed position and the open positions by the radial angular displacement of the handle portion 52,

Na configuragao exemplificativa ilustrada nos desenhos, a haste de acionamento 50 apresenta sua porgao de pega 52 e sua porgao de engate 53 dispostas coaxiais entre si e sendo que a dita porgao de pega 52 assume uma posigao coaxial ao eixo geometrico comum Xr da sede anelar 20 e da abertura auxiliar 13 do corpo 10, na posigao de elemento de vedagao 30 fechado. Deve ser entendido que a haste de acionamento 50 nao precisa ser necessariamente retilinea, podendo sua porgao de pega 52 formar diferentes angulos diedros com ο eixo geometrico da porgao de pega.In the exemplary embodiment illustrated in the drawings, the drive rod 50 has its handle portion 52 and its engagement portion 53 arranged coaxially with each other and said handle portion 52 assumes a position coaxial to the common geometric axis Xr of annular seat 20 and the auxiliary opening 13 of the body 10 in the closed sealing member position 30. It should be understood that the drive rod 50 need not necessarily be straight, but its handle portion 52 may form different dihedral angles with the geometric axis of the handle portion.

Na construgao ilustrada, a porgao esferica mediana 51 da haste de acionamento 50 apresenta um furo radial 55, com diametro superior ao da dita borda periferica interna 41a, sendo que a porgao de engate 53 da haste de acionamento 50 incorpora um alargamento cilindrico mediano 56, telescopicamente montado no interior do furo radial 55 da porgao esferica mediana 51 e apresentando um extremo em calota esferica 56a, definido em torno da porgao de engate 53 e deslizantemente assentado no interior de uma porgao do mancal esferico 40, adjacente a sua abertura axial interna 41.In the illustrated construction, the median spherical portion 51 of the drive rod 50 has a radial bore 55 larger in diameter than said inner peripheral edge 41a, with the engaging portion 53 of the drive rod 50 incorporating a median cylindrical flare 56, telescopically mounted within the radial bore 55 of the median ball portion 51 and having a ball cap end 56a defined around the engaging portion 53 and slidably seated within a ball bearing portion 40 adjacent its inner axial opening 41 .

Nessa constru?aof ο extremo em calota esferica 56a do alargamento cilindrico mediano 56 da porgao de engate 53 da haste de acionamento 50, e provido de uma ranhura circunf erencial 56b na qual e encaixada a bordaIn that end the ball cap 56a of the median cylindrical flange 56 of the engaging portion 53 of the drive rod 50 is provided with a circumferential groove 56b in which the edge is fitted.

periferica interna 41a da abertura axial interna 41 do mancal esferico 4 〇， quando a haste de acionamento 50 e levada a posigao de elementο de vedagao 30 fechado. 〇 referido extremo em calota esferica 56a e constante e elasticamente forgado contra ο mancal esferico 40, pref erivelmente, por uma mola 57. A mola 57 pode tomar diferentes formas como, por exemplo, uma forma helicoidal, disposta no interior do furo radial 55 da porgao esferica mediana 51 da haste de acionamento 50, e atuando entre dita porgao esferica mediana 51 e ο alargamento cilindrico mediano 56 da porgao de engate 53 da haste de acionamento 50.inner periphery 41a of the inner axial opening 41 of the ball bearing 4 〇， when the drive rod 50 is brought to the sealing element 30 position closed. Said end cap 56a is constantly and elastically biased against ball bearing 40, preferably by a spring 57. Spring 57 may take different forms such as, for example, a helical shape disposed within the radial bore 55 of the median ball portion 51 of the drive rod 50, and acting between said median ball portion 51 and the median cylindrical flare 56 of the engaging portion 53 of the drive rod 50.

A solugao construtiva da presente invengao, aplicada para a mancalizagao da porgao esferica mediana 51 da haste de acionamento 50, permite que a porgao de pega 52 dessa Ultima fique estabilizada na posigao de registro fechado, quando a borda periferica interna 41a, da abertura axial interna 41 do mancal esferico 40, e encaixada na ranhura circunferencial 5 6b do extremo em calota esferica 56a do alargamento cilindrico mediano 56 da porgao de engate 53 da haste de acionamento 5〇, conforme ilustrado nas figuras 4, 4Ά e 5.The constructive solution of the present invention, applied for machining the median ball portion 51 of the drive rod 50, allows the handle portion 52 of this Ultima to be stabilized in the closed registration position when the inner peripheral edge 41a of the inner axial opening 41 of the ball bearing 40, and engaged in the circumferential groove 5 6b of the ball cap end 56a of the median cylindrical flare 56 of the engagement portion 53 of the drive rod 5〇 as shown in figures 4, 4Ά and 5.

Com a referida Construgaor a haste de acionamento 50 permanece estavel na posigao de fechamento do registro, necessitando de certο esforgo do usuario para desloca-la angular e radialmente dessa posigao, para qualquer das possiveis p〇sig<3es abertas do registro.With said Construgaor the drive rod 50 remains stable in the register closing position, requiring some effort by the user to move it angularly and radially from that position to any of the possible registration openings.

Em f ungao da provisao da mola 57, ο usuario-operador passa a ter uma indicagao tatil e sonora quando a alavanca de acionamento 50 alcanga a posigao de registro fechado, com 〇 deslocamento axial da porgao de engate 53 e com ο choque da nervura circunferencial 5 6b contra ο mancal esferico 40, no moment〇 em que a nervura circunferencial 56b e encaixada na borda periferica interna 41a do mancal esferico 40. Na construgao exemplificada nos desenhos, ο furo radial 55 da porgao esferica mediana 51 da haste de acionamentoAs a function of spring provision 57, the user-operator has a tactile and audible indication when the drive lever 50 reaches the closed registration position, with axial displacement of the coupling portion 53 and with circumferential rib shock 5b against the ball bearing 40, at which moment the circumferential rib 56b is fitted to the inner peripheral edge 41a of the ball bearing 40. In the construction exemplified in the drawings, the radial bore 55 of the median ball portion 51 of the drive rod

50 apresenta uma extensao axial 58 de menor diametro, no interior do qual e telescopicamente alojada uma extensao 53a da porgao de engate 53 da haste de acionamento 50, sendo a mola 57 disposta em torno da dita extensao 53a da porgao de engate 53.50 has a smaller diameter axial extension 58, within which an extension 53a of the coupling portion 53 of the drive rod 50 is telescopically housed, the spring 57 being disposed around said extension 53a of the coupling portion 53.

〇 mancal esferico 40 compreende, preferivelmente, uma porgao anelar basica 4〇a, provida da abertura axial interna 41 e, em torno dessa Ultima, uma face de contato 44 a ser assentada contra 〇 elemento de vedagao 30, e uma porgao de tampa anelar 4Ob que e axialmente pressionada contra a porgao anelar basica 40a. Essa construgao permite uma facil montagem da porgao esferica mediana 51 da haste de acionamento 50 no interior do mancal esferico 4 O, sendo provido urn anel elastomerico 45 entre ditas partes de mancal e atuante contra a superficie da referida porgao esferica mediana 51.The ball bearing 40 preferably comprises a basic annular portion 4a provided with the inner axial opening 41 and around that latter a contact face 44 to be seated against the sealing member 30, and an annular lid portion 4b which is axially pressed against the basic annular portion 40a. This construction allows for easy mounting of the median ball portion 51 of the drive rod 50 within the ball bearing 40, and an elastomeric ring 45 is provided between said bearing parts and acting against the surface of said median ball portion 51.

〇 elemento de vedagao 30 tem ainda uma face de engate 32, oposta a face de contato 31, sendo que ο mecanismo de vedagao M compreende ainda uma Iuva tubular 60, internamente cilindrica e tendo uma face extrema 61, as sent ada e radialmente travada na face de engate 32 do elemento de vedagao 30, e uma face extrema oposta 62,The sealing member 30 further has a coupling face 32, opposite the contact face 31, and the sealing mechanism M further comprises an internally cylindrical tubular sleeve 60 having an end face 61, the seats and radially locked in the coupling face 32 of sealing member 30, and an opposite extreme face 62,

deslizantemente assentada ma is precisamente contra porgao anelar basica 40a. Para prover um adequadoslidingly seated more precisely against basic annular portion 40a. To provide adequate

contra ο mancal esferico 4 O, a face de contato 44 de suaagainst ball bearing 4 O, the contact face 44 of its

acoplamento entre a haste decoupling between the

acionamento 50 e a Iuva tubular 6〇,ο extremo livre 54 da porgao de engate 53, da haste de acionamento 50, apresenta um formato pelo menos parcialmente esferico, para ser mancalizado, em forma de rotula, no interior da Iuva tubular 60, definindo ο acoplamento entre a haste de acionamento 50 e ο elemento de vedagao 30, atraves da Iuva tubular 60.50 and the tubular sink 6〇, the free end 54 of the engaging portion 53 of the drive rod 50, is at least partially spherical in shape, to be labeled in the tubular sink 60, defining ο coupling between the drive rod 50 and ο sealing member 30 through the tubular sleeve 60.

Apesar de as partes componentes definidas pela sede anelar 20, pelo elemento vedante 30 com a Iuva tubular 60 e pelo mancal esferico 40 poderem ser montados diretamente no interior do corpo 10 do registro, na construgao preferida do mecanismo de vedagao Mr ele compreende ainda uma camisa tubular 70, preferivelmente construida em material plastico, apresentando um primeiro extremo 71, aberto e assentado, de modo estanque, geralmente com ο auxiIio de uma guarnigao anelar 80, em material elastomero, contra a parede divisoria interna 14 do corpo 10, em torno da abertura passante 14a. A camisa tubular 7 0 apresenta ainda um segundo extremo 12, aberto e em cujo interior e alojado e axialmente retido, de modo estanque, ο mancal esferico 40, dito segundo extremo 72 sendo perifericamente assentado, de modo estanquer contra ο corpo 10, na regiao de sua abertura auxiliar 13 e nesta axialmente retido.Although the component parts defined by the annular seat 20, the sealing member 30 with the tubular sleeve 60 and the ball bearing 40 may be mounted directly within the registration body 10, in the preferred construction of the sealing mechanism Mr it further comprises a jacket 70, preferably constructed of plastics material, having a first open and sealed end 71 tightly sealed, generally with the aid of an elastomeric annular gasket 80, against the inner dividing wall 14 of the body 10, around the through opening 14a. The tubular jacket 70 further has a second end 12, open and in which is housed and axially retained, sealed to ball bearing 40, said second end 72 being peripherally seated against body 10 in the region. of its auxiliary opening 13 and axially retained therein.

〇 mancal esferico 40, mais particularmente sua porgao anelar basica 4 0a, e perifericamente assentada contra ο corpo 10, especificamente contra a camisa tubular 70, por meio de um anel elastico de vedagao 46 c〇m〇, por exemplo, um、、〇 ring".The ball bearing 40, more particularly its basic annular portion 40a, is peripherally seated against the body 10, specifically against the tubular sleeve 70, by means of an elastic sealing ring 46 cm, e.g. ring ".

A retengao do mancal esferico 4 0 no interior do corpo 10 pode ser obtida por diferentes meios de retengao. Quando da provisao da camisa tubular 70,〇 segundo extremo 72 dessa Ultima pode incorporar dentes radiais internos 72a, a serem assentados sobre uma adjacente face extrema do mancal esferico 4 0b.The retention of ball bearing 40 within the body 10 may be achieved by different retaining means. In providing the tubular jacket 70, the second end 72 of that latter may incorporate inner radial teeth 72a to be seated on an adjacent end face of the ball bearing 40b.

〇 segundo extremo 72 da camisa tubular 7 0 e, por sua vez, axialmente retido no interior do corpo 10 pela porca- castelo 15, retida na abertura auxiliar 13 do corpo 10. A porca-castelo 15 pode assim pressionar axialmente 〇 segundo extremo 72 da camisa tubular 7〇,para assentar ο primeiro extremo 71 desta iiltima, contra a parede anelar interna 14 do corpo 10. A porca-castelo 15 define uma possivel solugao construtiva para ο meio de retengao axial das partes componentes do mecanismo de vedagao M no interior do corpo 10, independentemente da existencia da camisa tubular 7 0. A camisa tubular 7〇 apresenta ainda um degrau anelar interna 73, contra a qual e coaxialmente assentada eThe second end 72 of the tubular jacket 70 and in turn axially retained within the body 10 by the cap nut 15 retained in the auxiliary opening 13 of the body 10. The cap nut 15 can thus axially press the second end 72 of the tubular sleeve 7〇 to seat the first end 71 of this last one against the inner annular wall 14 of the body 10. The castle nut 15 defines a possible constructive solution for the axial retention of the component parts of the sealing mechanism M in the regardless of the existence of the tubular jacket 7 0. The tubular jacket 7〇 further has an inner annular step 73 against which it is coaxially seated and

retida, com a interposigao de um anel elastico intermediario 75, a face extrema 21 da sede anelar 20, e uma pluralidade de aberturas radiais 76, definidas entre ο degrau anelar interna 7 3 e ο segundo extremo 72 da camisa tubular 7 0.retained, with the interposition of an intermediate elastic ring 75, the end face 21 of the annular seat 20, and a plurality of radial openings 76, defined between the inner annular step 73 and the second end 72 of the tubular sleeve 70.

A construgao acima mencionada e ilustrada na figura 2, permite que ο mecanismo de vedagao M tome a forma de um cartucho cuja carcaga e definida pela camisa tubular 7 0 e que pode ser facilmente substituido por um novo, quando do desgaste do mecanismo de vedagao, sem a necessidade de desmontagem do corpo do registro em relagao a tubulagao hidraulica na qual encontra-se instalado.The aforementioned construction and illustrated in Figure 2 allows the sealing mechanism M to take the form of a cartridge whose shell is defined by the tubular jacket 70 and which can easily be replaced with a new one when the sealing mechanism is worn, without disassembly of the registration body in relation to the hydraulic pipe in which it is installed.

Na construgao ilustrada nos desenhos, ο mancal esferico 40, mais especificamente sua porgao de tampa anelar 4〇b, e axialmente retido, no interior da camisa tubular 70, pelos dentes radiais internos 72a do segundo extremo 72 da camisa, permitindo que a mola 57, em menor grau, e 〇 anel elastico intermediario 75, em maior grau, forcein, continua e elasticamente,〇 elemento de vedagao 30 contra a sede anelar 20, garantindo uma adequada vedagao entre ditas partes relativamente m0veis.In the construction illustrated in the drawings, the ball bearing 40, more specifically its annular cap portion 4〇b, is axially retained within the tubular sleeve 70 by the inner radial teeth 72a of the second end 72 of the sleeve, allowing the spring 57 , to a lesser extent, and the intermediate elastic ring 75, to a greater extent, forcein, continuously and elastically, the sealing member 30 against the annular seat 20, ensuring adequate sealing between said relatively movable parts.

〇 aperto da porca-castelo 15 permite a compressao da guarnigao anelar 80, do anel elastico intermediario 7 5 e ainda de uma gaxeta anelar 85 disposta entre um degrau periferico externo 78 da camisa tubular 70, definido entre as aberturas radiais 7 6 e a regiao da camisa tubular 7 0 que aloja 〇 mancal esferico 40, e um degrau periferico interno 18 do corpo 10, garantindo um elevado nivel de estanqueidade entre a camisa tubular 70 e ο corpo 10 do registro. Apesar de ter si do aqui i lustrada e descrita apenas uma concretizagao da invengao, deve ser entendido que poderao ser feitas alteragoes de forma e de disposigao relativa dos dif erentes elementos, sem que se f u j a do conceito inventivo definido nas reivindicagoes que acompanham οThe tightening of the castle nut 15 allows compression of the annular gasket 80, the intermediate elastic ring 75, and an annular gasket 85 disposed between an outer peripheral step 78 of the tubular sleeve 70 defined between the radial openings 76 and the region of the tubular jacket 70 housing the ball bearing 40, and an inner peripheral step 18 of the body 10, ensuring a high level of tightness between the tubular sleeve 70 and the register body 10. Although only one embodiment of the invention is illustrated and described herein, it should be understood that changes in shape and relative arrangement of the different elements may be made without departing from the inventive concept defined in the accompanying claims.

presente relatorio.present report.

Claims

1. Hydraulic registration sealing mechanism of the type having a body (10) having inlet (11) and outlet (12) openings, an internal partition wall (14) provided with a through aperture (14a), and a auxiliary opening (13), and characterized in that it comprises: an annular seat (20) having an end face (21) seated and retained against the inner partition wall (14), and an opposite end face (22), being the annular seat (20) maintained in fluid communication with the through opening (14a) is a sealing member (30) having a contact face (31) seated against the opposite extreme face (22) of the annular seat (20) and the be radially displaced therein between a closed position, blocking the passage of liquid through the annular seat (20), open sections, in which it allows fluid communication between the inlet (11) and outlet (12) openings through of the annular seat (20) and the through opening (14a) is a ball bearing (40) housed and retained within of the auxiliary opening (13) and having an internal axial opening (41) facing the annular seat (20) ； and a drive rod (50) having a median ball portion (51) housed in the ball bearing (40) and from which a handle portion (52) is projected outside the auxiliary opening (13) and a coupling portion (53) having a free end (54) coupled to the sealing member (30) displacing it. radially between the closed position and open legs by the radial angular displacement of the handle portion (52) ·

Mechanism according to Claim 1, characterized in that the inner axial opening (41) of the ball bearing (40) has an inner circumferential edge (41a) in the form of a rounded circumferential edge, the median spherical portion being (51) of the drive rod (50) has a radial bore (55) larger in diameter than said inner peripheral edge (41a), and the engaging portion (53) of the drive rod (50) incorporates a widening medium cylindrical (56), telescopically mounted within the radial bore (55) of the median ball portion (51) and having a ball cap end (56a) defined around the engaging portion (53) and slidably seated within a portion of the ball bearing (40) adjacent its inner axial opening (41), said ball cap end (56a) being constantly and elastically forced against the ball bearing (40).

Mechanism according to claim 2, characterized in that the end in the spherical cap (56a) is constantly and elastically forced against the spherical bearing (40) by a spring (57) disposed within the radial bore (55 ) of the median spherical portion (51) of the drive rod (50), and acting between said median spherical portion (51) and the mediated cylindrical widening (56) of the coupling portion (53) of the drive rod (50).

Mechanism according to Claim 3, characterized in that the radial bore (55) of the median ball portion (51) of the drive rod (50) has an axial extension (58) of smaller diameter, within which and telescopically housed an extension (53a) of the coupling portion (53) of the drive rod (50), the spring (57) being disposed around said extension (53a) of the coupling portion (53) of the drive rod (53). 50).

Mechanism according to any one of claims 2 to 4, characterized in that the spherical cap end (56a) is of the median cylindrical widening (56) of the coupling portion (53) of the drive rod (50); be provided with a circumferential groove (56b) into which the inner peripheral edge (41a) of the inner axial opening (41) of the ball bearing (40) is engaged when the drive rod (50) is brought into the sealing member position (30) Closed.

Mechanism according to any one of claims 1 to 5, characterized in that the annular seat (20) and the auxiliary opening (13) of the body (10) have the same common geometric axis (X), wherein the The drive rod (50) has its handle portion (52) and its coupling portion (53) disposed coaxially with said handle portion (52) assuming a coaxial position to said common geometrical axis at the sealing element position (30) closed.

Mechanism according to any one of claims 1 to 6, characterized in that the ball bearing (40) comprises a basic annular portion (40a), provides the inner axial opening (41) and, around it, a face. (44) to be seated against the sealing member (30), and an annular lid portion (40b) which is axially pressed against the basic annular portion (40a).

Mechanism according to any one of claims 1 to 7, characterized in that the opposite end face (22) of the annular seat (20) comprises an annular portion (22a) and a plurality of coplanar radial portions (22b) the annular portion (22a) and extending out of the latter, the contact face (31) of the sealing member (30) having a circular contour corresponding to the outer contour of the annular portion (22a) of the opposite extreme face ( 22) of the annular seat (20) ·

Mechanism according to claim 8, characterized in that the contact face (31) of the sealing element (30) is an annular contour corresponding to the internal contour of the annular portion (22a) of the opposite end ( 22) of the annular seat (20) and surrounding a spherical cap-shaped median recess (33) provided within the contact face (31) of the sealing member (30).

Mechanism according to any one of claims 1 to 9, characterized in that the sealing element (30) has a coupling face (32) opposite the contact face (31), the mechanism further comprising an internally cylindrical tubular sleeve (60) having an end face (61) seated and radially locked to the engaging face (32) of the sealing member (30), and an opposite end face (62) slidably seated against the bearing spherical (40).

Mechanism according to Claim 10, characterized in that the free end (54) of the engaging portion (53) of the drive rod (50) is at least partially spherical in shape and is biased in shape. inside the tubular cup (60), defining the coupling between the drive rod (50) and the sealing member (30).

Mechanism according to any one of claims 1 to 11, characterized in that it comprises a tubular jacket (70) having: a first end (71) openly sealed against the internal partition wall (14). ) of the body (10) around the through opening (14a) is a second end (12), open and internally housed and axially retained to the ball bearing (40), said second end (72) ) being peripherally sealed against the body (1) in the region of its auxiliary opening (13) and axially retained therein; an inner annular step (73) against which the end face (21) of the annular seat (20) is coaxially seated and retained and a plurality of radial openings (76) defined between the inner annular step (73) and ο second end (72) of the tubular jacket (70).

Mechanism according to Claim 12, characterized in that it includes a castle nut (15) retained in the auxiliary opening (13) of the body (10) and axially pressing the second end (72) of the tubular jacket (70). 7 resting the first end (71) of this 61th against the inner annular step (73) of the body (10)