ES2318946A1 - Drain valve (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Drain valve. It consists of a valve that incorporates safe means to immobilize a gasket on the valve embouchure in order to prevent unwanted movements and misalignments that will prevent fluid leaks. It is characterized because the sealing gasket is injected chemically joining the embouchure with the possibility of obtaining different joint thicknesses. (Machine-translation by Google Translate, not legally binding)

Description

Drain valve.

Object of the invention

The present invention, as expressed in the set forth in this specification, refers to a valve drain that presents the particularity of incorporating safe means to immobilize a seal on the mouth of the valve in order to prevent unwanted movements and mismatches, thus avoiding leaks or leaks of fluid, especially ensure that immobilization when assembling the valve assembly and gasket that is arranged in correspondence with the exit hole bottom of a sanitary appliance, such as sinks, sinks, etc.

The new valve presents, among others, the following advantages:

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Stock reduction almost at disappearance.

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Cost very small

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Reduction of the phases of mounting.

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Obtaining different thicknesses of gasket to optimize assembly without stock.

Background of the invention

Washbasins and other sanitary ware similar incorporate an outlet, in correspondence with which is installed inferiorly a valve or short tube of drain with interposition of a seal, seating said gasket against the mouth of a valve widening and on the outer face of the sanitary apparatus, ensuring the fixing the assembly by means of a screw and a grid piece which is located in correspondence with the exit hole, but by the internal face of the sanitary apparatus.

The valve mouth has a recess annular at a right angle to facilitate the seat of the joint that It has a complementary perimeter step with the aforementioned annular recess

Normally, the valve and the gasket are two items served together. However, the problem of that when the valve is engaged in certain positions, the gasket is separated from said valve, being necessary to return to Place it in its location.

Description of the invention

The drain valve that constitutes the object of the invention is determined from a main body of tubular structure with an upper mouth, characterized because this mouth incorporates a gasket injected with elastomeric material in the manufacturing phase itself of the main body, once molded, being joined seals to the main body through chemical anchoring means such as consequence of the interaction between both plastic materials and elastomer

The joint is variable in thickness depending on the preset mold approach parameters shaper

The drain valve and gasket assembly are they connect externally in correspondence with the exit hole bottom of a sanitary apparatus, supporting said joint on a outer annular surface of the sanitary apparatus around the exit hole.

Valve fixation is secured conventional by means of a screw and a grid piece arranged inside the sanitary apparatus in correspondence with the hole output

Another feature of the invention is that the injected joint presents mechanical means of anchoring to the seat or valve mouth or only chemical anchoring means such as consequence of the interaction between both plastic materials or elastomer

Then, to facilitate a better understanding of this descriptive report and being an integral part of the same, some figures are accompanied in which with character illustrative and not limiting the object of the invention.

Brief description of the drawings

Figure 1.- Shows a perspective view exploded drain valve, object of the invention.

Figure 2.- Shows a sectional view of the valve of the invention.

Description of the preferred embodiment

Considering the numbering adopted in the figures, the drain valve is constituted from a body main of tubular structure 1 that includes a mouth widened upper 2 where a material joint has been injected elastomer 3 that will remain chemically bonded to said mouth 2.

On the other hand, the contact surfaces of the gasket 3 and upper mouth 2, incorporate male elements 4 and female elements 5 that complement each other, thus achieving a stronger and safer chemical and mechanical bond between joint 3 and widened mouth 2 of the main body 1, the union being due mechanically obviously to the aforementioned complementary elements male and female.

The valve assembly is fixed to a device sanitary with the help of a screw and a grille piece, screw  which will thread into a socket 6 embedded in a portion concentric 7 attached to the main body 1 by several sections radial 8.

Claims (4)

1. Drain valve, which including a main body with a tubular structure provided with an extreme widened mouth, is characterized in that an elastomer gasket (3) is injected over said mouth which chemically joins said mouth with the possibility of obtaining different thicknesses of joint varying the filling space inside the injection mold, corresponding space with the volume occupied by the joint. 2. Drain valve according to claim 1, characterized in that the contact surfaces of the joint (3) and mouth (2) of the main body (1) incorporate male elements and female elements that complement each other; all in order to obtain a mechanical joint combined with the chemical bond. 3. Drain valve according to claim 2, characterized in that the male elements (4) are integral with the sealing gasket (3) while the female elements (5) are located in the widened mouth (2) of the main body ( one). 4. Drain valve according to claim 2, characterized in that the male elements are located in the widened mouth (2) of the main body (1), while the female elements are located in the sealing gasket (3).