DE202020003011U1 - Valve with two opposing valve elements - Google Patents

Abstract

Valve, comprising: a valve body (1) with a cavity (1e) and a first valve seat (1a) and a second valve seat (1b) which are arranged in the cavity (1e) on opposite sides; a first valve element (2) and a second valve element (3) which are arranged opposite one another and are respectively arranged corresponding to the first valve seat (1a) and the second valve seat (1b); a diaphragm (4) which sealingly holds a fluid in the valve body (1); a Driver (7; 8), which is arranged above the membrane (4).; A first lever (5) and a second lever (6), each of which is arranged with one end below the membrane (4) in order to connect to produce the first valve element (2) and the second valve element (3), each of which is arranged with the other end above the membrane (4) and is connected to the driver (7; 8); andan actuator operable by manual, pneumatic, mechanical or electrical means to move the driver (7; 8) in order to hold the first lever (5) and the second lever (6) in the open or closed position.

Description

BACKGROUND OF THE INVENTION

Field of invention

The present invention relates to a valve for opening and closing a flow path for a liquid or gaseous medium.

State of the art

Conventional valves have a single valve element for opening or closing the flow of fluids through a flow path. In order to close the fluid flow, such a valve uses the force of a spring, pneumatic pressure, an electromechanical device, a mechanical screw or a mechanical plunger in order to produce a seal when applied to a valve element.

Therefore, the inventor further developed a valve which uses the fluid pressure to build up a sealing force. By using the force of the fluid, the need for an external force to make the seal is minimized.

The fluid force acting on a rear side of the valve element presses the valve element against a valve seat in order to create a seal.

Even without the use of an external force, such as the use of a spring or pneumatic force, the valve can maintain the closed or open position.

SUMMARY OF THE INVENTION

• - einen Ventilkörper mit einem Hohlraum und einen ersten Ventilsitz und einen zweiten Ventilsitz, die in dem Hohlraum einander gegenüberliegend angeordnet sind;
• - ein erstes Ventilelement und ein zweites Ventilelement, die gegenüberliegend angeordnet sind und jeweils entsprechend dem ersten Ventilsitz und dem zweiten Ventilsitz angeordnet sind;
• - einen Mitnehmer, der oberhalb der Membran angeordnet ist;
• - einen ersten Hebel und einen zweiten Hebel, die jeweils mit einem Ende unterhalb der Membran angeordnet sind, um eine Verbindung zu dem ersten Ventilelement und dem zweiten Ventilelement herzustellen, und mit dem anderen Ende oberhalb der Membran angeordnet und mit dem Mitnehmer verbunden sind;
• - einen Aktuator, der mit manuellen, pneumatischen, mechanischen oder elektrischen Mitteln betätigbar ist, um den Mitnehmer zu bewegen, um den ersten Hebel und den zweiten Hebel in offener oder geschlossener Position zu halten.

The present invention is based on the object of providing a valve which requires minimal external forces to open / close the flow path. To solve this problem, the present invention provides a valve which comprises the following:

• a valve body with a cavity and a first valve seat and a second valve seat which are arranged opposite one another in the cavity;
• a first valve element and a second valve element which are arranged opposite one another and are respectively arranged corresponding to the first valve seat and the second valve seat;
• - A driver which is arranged above the membrane;
• a first lever and a second lever, each of which is arranged with one end below the membrane in order to establish a connection to the first valve element and the second valve element, and with the other end arranged above the membrane and connected to the driver;
• an actuator which can be actuated by manual, pneumatic, mechanical or electrical means in order to move the driver in order to hold the first lever and the second lever in the open or closed position.

According to aspects of the present invention, the force exerted by the fluid on the backsides of the first valve element and the second valve element (i.e., fluid pressure) presses the first valve element and the second valve element against the valve seat, so that a seal is created with the cavity of the valve body . By using the fluid pressure, a minimal force is required from operating the first lever and the second lever.

The flow of the fluid is stopped as long as the total force exerted by the medium and the first lever and the second lever on the rear sides of the first valve element and the second valve element is greater than that exerted by the fluid on the front side of the first valve element and the second valve element Force is. When the valve is in the closed position, the first valve element and the second valve element are positioned opposite one another within the valve body to stop the flow of fluid in either direction.

The present patent application provides a valve that can be configured such that it is normally closed or open. The valve can be operated by manual, pneumatic, mechanical or electrical means. All of this can be achieved by using different types of actuators while keeping the valve elements, valve body, diaphragm and levers the same.

The first valve element and the second valve element are preferably formed in one piece. The valve body is also made in one piece. The membrane, the first lever and the second lever are also integrally formed, which can be done with any suitable flexible polymer or elastomer material.

Figure list

• 1 eine bevorzugte Ausführungsform eines erfindungsgemäßen Ventils mit zwei gegenüberliegenden, selbst abdichtenden Ventilelementen in einem Längsschnitt, wobei die Ventilelemente in der geschlossenen Position angeordnet sind, um die Strömung des Fluides zu stoppen;
• 2 eine bevorzugte Ausführungsform eines erfindungsgemäßen Ventils mit zwei gegenüberliegenden, selbst abdichtenden Ventilelementen in einem Längsschnitt, wobei die Ventilelemente in der geöffneten Position angeordnet sind, um die Strömung des Fluides zu erlauben;
• 3 das Ventilelement und den Ventilsitz gemäß einer bevorzugten Ausführungsform der vorliegenden Erfindung, in einer vergrößerten Schnittansicht; und
• 4 einen Mitnehmer eines Ventils mit zwei gegenüberliegenden, selbst abdichtenden Ventilelementen gemäß einer weiteren bevorzugten Ausführungsform der vorliegenden Erfindung in einem Längsschnitt;

The present invention is explained in more detail below with reference to the drawing. This shows in

• 1 a preferred embodiment of a valve according to the invention with two opposing, self-sealing valve elements in a longitudinal section, the valve elements being arranged in the closed position in order to stop the flow of the fluid;
• 2 a preferred embodiment of a valve according to the invention with two opposing, self-sealing valve elements in a longitudinal section, the valve elements being arranged in the open position in order to allow the flow of the fluid;
• 3 the valve element and the valve seat according to a preferred embodiment of the present invention, in an enlarged sectional view; and
• 4th a driver of a valve with two opposite, self-sealing valve elements according to a further preferred embodiment of the present invention in a longitudinal section;

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

The invention is described in detail below on the basis of preferred embodiments of the invention with reference to the drawings.

1 shows in a longitudinal section a preferred embodiment of a valve according to the invention with two opposite, self-sealing valve elements 2 , 3 , the valve elements 2 , 3 are arranged in the closed position to stop the flow of fluid. 2 is a similar longitudinal section of a preferred embodiment of a valve according to the invention with two opposing, self-sealing valve elements 2 , 3 , the valve elements 2 , 3 are arranged in the open position to allow the flow of fluid. 3 Figure 3 is an enlarged sectional view of the valve element and valve seat in accordance with a preferred embodiment of the present invention. 4th is a longitudinal section of a driver 8th a valve with two opposing, self-sealing valve elements 2 , 3 according to a further preferred embodiment of the present invention in

(Structure of a valve with two opposing self-sealing valve elements)

In 1 is a valve for opening and closing the flow path of a medium, for example a liquid or gaseous chemical, with two opposing, self-sealing valve elements 2 , 3 shown according to an embodiment of the invention in the closed state.

The valve includes: a valve body 1 with a cavity 1e and a first valve element seat 1a and a second valve element seat 1b on opposite sides of the cavity 1e are arranged; a first valve element 2 and a second valve element 3 facing each other within the cavity 1e of the valve body 1 are arranged; a membrane 4th containing the fluid within the valve body 1 holds; a first lever 5 and a second lever 6th each with the first valve element 2 and the second valve element 3 to the first valve element seat 1a and the second valve element seat 1b move towards or away from them; and a driver 7th to tilt / swivel the first lever 5 and the second lever 6th .

(Valve elements)

The first valve element 2 and the second valve element 3 each have a cylindrical shape with a flat face that is flat against the first valve element seat 1a and the second valve element seat 1b to create a seal. To stop or allow the flow of fluid, the first valve element closes and opens 2 and the second valve element 3 the fluid path by means of axial movement to the first valve element seat 1a and the second valve element seat 1b towards or away from these.

When the fluid flows both the first valve element 2 as well as the second valve element 3 a valve element elevation 2a ( 3 ) on the first lever 5 and the second lever 6th allowed the first valve element 2 and the second valve element 3 from the first valve element seat 1a and the second valve element seat 1b starting from an upper circumference of the first valve element 2 and the second valve element 3 push away. The assessment 2a reduces the effort required to move the first valve element 2 and the second valve element 3 from the first valve element 1a and the second valve element seat 1 b move away from the closed position.

Preferably both the first valve element 1 as well as the second valve element 2 integrally formed.

(Valve body)

The valve body 1 has a cavity 1e on which two cylindrical connections 1c , 1d includes, which are bored opposite to each other.

(Membrane / lever)

The membrane 4th is a round plate that forms the cavity 1e closes the medium tightly inside the valve body 1 to keep. The first lever 5 and the second lever 6th each have an end which is above the membrane 4th is arranged, and an opposite other end which is below membrane 4th is arranged. The first valve element 2 and the second valve element 3 are each with the lower section or with the other end, which is below the membrane 4th is arranged, the first lever 5 and the second lever 6th connected. The first lever 5 and the second lever 6th pivot around a fixed angular range around a pivot point + around the first valve element 2 and the second valve element 3 to the first valve element seat 1a and the second valve element seat 1b to move towards or away from them.

The membrane 4th is preferably formed in one piece. The first lever 5 and the second lever 6th optionally have inlays / inserts to increase their mechanical stability.

(Driver)

The driver 7th , 8th rotates or slides around the first lever 5 and the second lever 6th move away from or towards the center of the valve to close or open the fluid flow. The driver 7th , 8th is able to maintain the valve in either the closed or open position in a static condition without any additional force applied to it.

• Einen Ventilkörper 1 mit zwei gegenüberliegenden Anschlüssen 1c und 1d, wobei der Ventilkörper 1 zwei Ventilelementsitze 1a, 1b aufweist, die sich entsprechend der Anschlüsse 1c, 1d gegenüber stehen, sowie zwei Ventilelemente 2, 3 und eine Membran 4 / Hebeleinheit 5, 6. Die Hebel 5, 6 verschwenken nahe der Membran 4.
• Die Ventilelemente 2, 3 werden unter Verwendung der Hebel 5, 6 positioniert bzw, bewegt bzw. betätigt. Die Hebel 5, 6 werden unter Verwendung eines Mitnehmer- bzw. Nockenkurven-Mechanismus mit einem Mitnehmer bzw. Nockenkurventräger 7 betätigt. Die einmal eingenommene Position kann entweder unter Verwendung einer Feder oder ohne eine Feder aufrechterhalten werden. Die einmal eingenommene Position kann auch mit oder ohne externe Kraft aufrechterhalten werden. In der geschlossenen Position des Ventils liegen beide Ventilelemente 5, 6 an den Ventilelementsitzen 1a, 1b abdichtend an und Fluid ist daran gehindert in irgendeine Richtung zu strömen. In einer offenen Position des Ventils sind beide Ventilelemente 2, 3 axial von dem jeweiligen Ventilelementsitz 1a, 1b wegbewegt und das Fluid ist in der Lage in jede Richtung zu strömen.

In summary, the valve has two opposing, self-sealing valve elements 2 , 3 the following on:

• A valve body 1 with two opposite connections 1c and 1d , the valve body 1 two valve element seats 1a , 1b has, corresponding to the connections 1c , 1d stand opposite, as well as two valve elements 2 , 3 and a membrane 4th / Lever unit 5 , 6th . The levers 5 , 6th pivot near the membrane 4th .
• The valve elements 2 , 3 are using the lever 5 , 6th positioned or moved or actuated. The levers 5 , 6th are using a driver or cam mechanism with a driver or cam carrier 7th actuated. The position once assumed can be maintained either using a spring or without a spring. The position once assumed can also be maintained with or without external force. Both valve elements are in the closed position of the valve 5 , 6th on the valve element seats 1a , 1b sealing and fluid is prevented from flowing in any direction. Both valve elements are in an open position of the valve 2 , 3 axially of the respective valve element seat 1a , 1b moved away and the fluid is able to flow in any direction.

Claims (3)

Valve, comprising the following, a valve body (1) with a cavity (1e) and a first valve seat (1a) and a second valve seat (1b) which are arranged in the cavity (1e) on opposite sides; a first valve element (2) and a second valve element (3) which are arranged opposite one another and are respectively arranged corresponding to the first valve seat (1a) and the second valve seat (1b); a membrane (4) which sealingly holds a fluid in the valve body (1); a driver (7; 8) which is arranged above the membrane (4) .; a first lever (5) and a second lever (6), each of which is arranged with one end below the membrane (4), in order to establish a connection to the first valve element (2) and the second valve element (3), and each with the other end arranged above the membrane (4) and connected to the driver (7; 8); and an actuator which can be actuated by manual, pneumatic, mechanical or electrical means to move the driver (7; 8) in order to hold the first lever (5) and the second lever (6) in the open or closed position. Valve after Claim 1 , wherein both the first valve element (2) and the second valve element (3) each have a bore, an insert and an elevation (2a), wherein the insert is arranged in the bore and wherein the elevation (2a) near the circumference of the Bore is arranged. Valve after Claim 1 , wherein the membrane (4) is made in one piece from a polymer or elastomer material.

Images