DE112011104551T5 - A device for saving water and preventing backflow - Google Patents

Abstract

A means for saving water and preventing backflow includes a valve body (100), a valve closure member (200), and a spring (300). A water channel (110) is disposed in the valve body (100). On the inner surface of the valve body (100), this comprises a sealing area (111) and a water-saving area (112). A sealing ring (210) is disposed outside the valve closure element (200). A spring (300) supports the valve closure element (200), the valve closure element (200) being pressed by a spring force. When the water of the water channel (110) is running in the water running direction and the water pressure is greater than the spring force, the valve closing member (200) is moved so that the sealing ring (210) is in the water saving area (112). wherein the sealing ring (210) is deformed by the water pressure in the radial direction, so that the cross-sectional area between the outer edge and the inner surface of the water-saving area (112) is reduced, while otherwise the sealing ring (210) in the sealing area (111), and the seal ring (210) seals against the inner surface of the seal portion (111). The shut-off valve and the means for controlling the flow rate of the water use only a holder and a sealing ring. Therefore, less material is needed, so that the manufacturing cost can be reduced, and the structure of the valve-closure member is simplified.

Description

Technical area

The invention relates to a device for saving water and preventing backflow.

State of the art

In the prior art, a device for saving water and preventing backflow is known, for. B .:
The utility model with the name "A device for controlling the amount of water and preventing backflow" with the patent number CN200920137849.8 , which was published on 10.03.2010 in the database of the Chinese Patent Office. The device comprises a fitting part, means for controlling the flow rate of the water, a shut-off valve; The shut-off valve is sealingly disposed on the water outlet of the mating part, the means for controlling the flow rate of the water is arranged on the water inlet of the mating part; The device for controlling the flow rate of the water comprises a holder of a water-saving element and a water-saving element, which is arranged within the holder of the water-saving element. The water-saving element is elastic, the water-saving element is deformed by the water pressure and covers the passage openings of the holder of the water-saving element. The device has the following shortcomings: The shut-off valve and the water flow rate control device are arranged separately, therefore two brackets and two sealing rings are needed and more material is needed and the means for saving water and preventing backflow is greater ,

The invention with the name "CARTRIDGE INSERT FOR A FLUID LINE" with the patent number US6837267 , which was published on 04.01.2005 in the database of the US Patent Office.

The difference to CN200920137849.8 is: the means for controlling the flow rate of the water and the shut-off valve have a holder.

The valve closure element has two sealing rings, a sealing ring is provided for sealing and as a shut-off valve, the other sealing ring is for controlling the flow rate of the water. The device has the following shortcomings: 1, the axial length of the valve closure element is long, therefore more material is needed, the manufacturing costs are high; 2, two sealing rings need more material, the manufacturing cost is high; 3, on the valve-closure member are arranged two mounting seats, which are mating with the sealing ring, the strength of the valve-closure element is reduced, the structure of the valve-closure element is complicated, the manufacturing cost is high.

Content of the invention

This invention provides a means for saving water and preventing backflow, overcoming the deficiencies of the prior art.

The invention uses the following technical solution: A device for saving water and preventing the reflux comprises:
a valve body ( 100 ), a water channel ( 110 ) in the valve body ( 100 ) is arranged; on the inner surface of the valve body ( 100 ) a sealing area ( 111 ) and a water saving area ( 112 ), which are in the running direction of the water channel ( 110 ) are arranged;
a valve closure element ( 200 ) located in the water channel ( 110 ) is movably mounted, a sealing ring ( 210 ) located outside the valve closure element ( 200 ) is arranged;
a feather ( 300 ), the valve closure element ( 200 ), wherein the valve-closure element is pressed by a spring force, and the direction of the spring force of the water-saving area ( 112 ) in the direction of the sealing area ( 111 );
when the water is running in the water running direction and the water pressure is greater than the spring force, the valve closure element ( 200 ) moves in the direction of water flow, so that the sealing ring ( 210 ) in the water saving area ( 112 ), wherein the sealing ring ( 210 ) is deformed by the water pressure in the radial direction, so that the cross-sectional area between the outer edge and the inner surface of the water-saving area ( 112 ) is reduced; while otherwise the sealing ring ( 210 ) in the sealing area ( 111 ), and the sealing ring ( 210 ) against the inner surface of the sealing area ( 111 ) seals.

An improved embodiment: the sealing area ( 111 ) is a cone-shaped area.

An improved embodiment: on the inner surface of the water saving area (FIG. 112 ) are in the circumferential direction several protruding parts ( 113 ), wherein in the initial state, the diameter of the outer edge of the sealing ring ( 210 ) is smaller than the diameter formed by the protruding parts ( 113 ) is formed, and the diameter of the outer edge of the sealing ring ( 210 ) is between the maximum Diameter and the smallest diameter of the sealing area ( 111 ).

An improved embodiment comprises:
a valve seat ( 400 ), a fitting part ( 410 ), a medium basis ( 420 ) and several additional elements ( 430 ), the middle basis ( 420 ) within the appropriate part ( 410 ), and several additional elements ( 430 ) with the appropriate part ( 410 ) and the middle base ( 420 ) are connected; where the matching part ( 410 ) with the valve body ( 100 ), and the spring ( 300 ) between the middle base ( 420 ) and the valve closure element ( 200 ) is supported.

An improved embodiment: in the middle base ( 420 ) is a sliding opening ( 421 ) arranged; on the valve closure element ( 200 ) is a management staff ( 220 ) projecting, the management staff ( 220 ) is with the sliding opening ( 421 ) and fits in the sliding opening ( 421 ).

An improved embodiment: at the middle base ( 420 ) is a lower annular receptacle ( 422 ), and an upper annular receptacle ( 230 ) is on the lower surface of the valve closure element ( 200 ), the spring ( 300 ) is with the management staff ( 220 ), and the upper end and the lower end of the spring are interposed between the upper annular retainer ( 230 ) and the lower annular receptacle ( 422 ) arranged appropriately.

An improved embodiment: on the inner surface of the valve body ( 100 ) is at least one connection area ( 114 ), wherein the outer matching part ( 410 ) with the inner surface of the connection area ( 114 ) connected is.

An improved embodiment: on the outer surface of rotation of the valve closure element (FIG. 200 ) is an annular receptacle ( 240 ), the sealing ring ( 210 ) is in the annular receptacle ( 240 ), and in the initial state at least a part of the sealing ring ( 210 ) directly by the water pressure in the water channel ( 110 ) pressed together.

An improved embodiment: the annular receptacle ( 240 ) has an upper annular surface ( 241 ), a lower annular surface ( 242 ) and a cylindrical surface ( 243 ), the diameter of the upper annular surface ( 241 ) is smaller than the diameter of the lower annular surface ( 242 ); in the initial state, the diameter of the outer edge of the sealing ring 210 greater than the diameter of the upper annular surface ( 241 ) and smaller than the diameter of the lower annular surface ( 242 ).

An improved embodiment: a protruding cylinder ( 250 ) is at the central region of the upper surface of the valve closure element ( 200 ), wherein protruding clamping elements ( 260 ) on the outer edge of the circular surface of the protruding cylinder ( 250 ) and at the upper surface is a lower annular surface ( 251 ) formed around the protruding cylinder ( 250 ), and the annular receptacle ( 240 ) is between the lower annular surface ( 251 ) and the protruding clamping elements ( 260 ) educated.

An improved embodiment: between the adjacent protruding clamping elements ( 260 ) is formed a small gap.

• 1. Das Absperrventil und die Einrichtung zum Steuern der Durchflussmenge des Wassers verwendet eine Halterung und einen Dichtungsring, deswegen wird nur eine Halterung und ein Dichtungsring gebraucht, deswegen wird weniger Material gebraucht, so dass die Herstellungskosten reduziert werden können, die axiale Länge des Ventil-Verschlusselements wird verkürzt, und die Struktur des Ventil-Verschlusselements wird vereinfacht.
• 2. Der Dichtungsbereich ist ein kegelförmiger Bereich, wodurch die Dichtung verbessert wird.
• 3. Die hervorstehenden Teile passen mit dem Dichtungsring zusammen, wobei die Verformung des Dichtungsrings kontrolliert, und die Leistung des Wassersparens verbessert wird.

Compared to this technical solution with the prior art, this invention has the following advantages:

• 1. The shut-off valve and the means for controlling the flow rate of the water uses a holder and a sealing ring, therefore, only a holder and a sealing ring is needed, therefore, less material is needed, so that the manufacturing cost can be reduced, the axial length of the valve Shutter member is shortened, and the structure of the valve-closure member is simplified.
• 2. The sealing area is a tapered area, which improves the seal.
• 3. The protruding parts fit with the seal ring, controlling the deformation of the seal ring and improving the performance of water saving.

Description of the figures

To further illustrate the invention, an embodiment with the figures is shown.

1 shows a perspective view 1 a preferred embodiment of a device for preventing reflux.

2 shows a perspective view 2 a preferred embodiment of a device for preventing reflux.

3 shows an exploded perspective view 1 a preferred embodiment of a device for preventing reflux.

4 shows an exploded perspective view 2 a preferred embodiment of a device for preventing reflux.

5 shows a plan view of a preferred embodiment of a device for preventing backflow.

6 shows an AA cross-sectional view 1 of the 5 , where no water is running in the water running direction or the water pressure in the water running direction is smaller than the spring force.

7 shows an AA cross-sectional view 2 of the 5 , wherein the water pressure of the water in the water running direction is greater than the spring force.

8th shows an AA cross-sectional view 3 of the 5 , wherein the water runs counter to the water running direction.

9 shows a BB cross-sectional view of 6 ,

10 shows a perspective view 1 a preferred embodiment of a valve body.

11 shows a perspective view 2 a preferred embodiment of a valve body.

12 shows a perspective view of a preferred embodiment of a valve closure element.

13 shows a perspective view of another preferred embodiment of a valve closure element.

Detailed description of preferred embodiments

The 1 to 12 shows a device for saving water and preventing backflow. The device comprises a valve body 100 , a valve closure element 200 , a feather 300 and a valve seat 400 ,

A water channel 110 is in the valve body 100 arranged, an annular mounting receptacle 120 is outside the valve body 100 arranged. A sealing ring 130 is at the mounting receptacle 120 arranged.

On the inner surface of the valve body 100 are at least one sealing area 111 , a water-saving area 112 and a connection area 114 in the running direction of the water channel 110 arranged. In this embodiment, the sealing area 111 a cone-shaped area. The diameter of the cone-shaped area increases in the direction of water flow. However, it is not limited only to this shape, it may also be a ladder-shaped opening as needed (the seal ring adapts to the ladder-shaped surface of the ladder-shaped opening, realizing the sealing effect). At the inner surface of the water saving area 112 are annular several protruding parts 113 arranged. In this embodiment, the diameter passing through the ends of the protruding parts 113 is formed, larger than the maximum diameter of the tapered portion. It can also be equal to the maximum diameter of the conical area. At the inner surface of the connection area 114 is arranged a thread.

The valve seat 400 includes a matching part 410 and a medium base 420 , where the mean base 420 within the appropriate part 410 is arranged, and several additional elements 430 the middle base 420 , A clamping element is outside of the matching part 410 arranged, wherein the clamping element with the connecting portion 114 of the valve body 100 connected so that the valve seat 400 with the valve body 100 connected is.

The valve closure element 200 is in the water channel 110 movably arranged. On the outer peripheral surface of the valve closure element 200 is an annular receptacle 240 arranged. The annular receptacle 240 has an upper annular surface 241 , a lower annular surface 242 and a cylindrical surface 243 on. The diameter of the upper annular surface 241 is smaller than the diameter of the lower annular surface 242 , An elastic sealing ring 210 is arranged on the outside of the receptacle. In the de-energized state, the diameter of the outer edge of the seal ring 210 greater than the diameter of the upper annular surface 241 so that at least a part of the sealing ring 210 is pressed directly by the water pressure. The diameter of the sealing ring 210 is smaller than the diameter of the lower annular surface 242 so that the sealing ring 210 at the lower annular surface 242 may be arranged, wherein the deformation is increased. In this embodiment, the diameter of the sealing ring 210 smaller than the diameter of the protruding parts 113 passing through the outer edge of the protruding parts 113 is formed. In the de-energized state, the diameter of the outer edge of the sealing ring is located 210 between the maximum diameter and the smallest diameter of the sealing ring 111 ,

The feather 300 is between the middle base 420 and the valve closure element 200 supported, with the direction of the spring force of the water-saving area 112 in the direction of the sealing area 111 has.

To the direction of movement of the valve closure element 200 to secure is in the middle base 420 a continuous sliding opening 421 arranged. On the valve closure element 200 is a management staff 220 protruding arranged. The management staff 220 is with the sliding opening 421 matching and stuck in the sliding opening 421 ,

To position the spring is at the middle base 420 a lower annular receptacle 422 arranged. On the lower surface of the valve closure element 200 is an upper annular receptacle 230 arranged. The feather 300 is with the senior staff 220 connected, and the upper end and the lower end of the spring is between the upper annular receptacle 230 and the lower annular receptacle 422 arranged appropriately.

When the water is running in the water running direction and the water pressure is greater than the spring force, the valve closure element becomes 200 moved in the direction of water flow, so that the sealing ring 210 in the water saving area 112 located. The diameter of the upper annular surface 241 is smaller than the diameter of the sealing ring 210 so that the sealing ring 210 is pressed by the water pressure, and with the action of the lower annular surface 242 becomes the sealing ring 210 deformed in the radial direction and abuts the adjacent protruding parts 113 at, wherein the cross-sectional area between the outer edge and the inner surface of the water-saving area 112 is reduced. The larger the water pressure, the larger the deformation, and the smaller the cross-sectional area.

Otherwise, the sealing ring is located 210 in the sealing area 111 , wherein the sealing ring 210 the inner surface of the sealing area 111 seals. This is the shut off state.

In another embodiment, the difference from the above embodiment is as follows:
in the 13 is a protruding cylinder 250 at the central area of the upper surface of the valve closure element 200 arranged, with protruding clamping elements 260 at the outer edge of the circular surface of the protruding cylinder 250 are arranged, and on the upper surface is a lower annular surface 251 formed around the protruding cylinder 250 runs, and the annular receptacle 240 is between the lower annular surface 251 and the protruding clamping elements 260 educated. And a small gap is between the adjacent protruding clamping elements 260 formed, whereby more area can be pressed by the water pressure, and so improves the deformation and the effect.

The above embodiment relates to only one embodiment. However, the design concept of the invention is not limited to the embodiment. Any use of the idea of the invention regarding non-contentual changes should result in a breach of the claimed subject matter.

Industrial Applicability

The invention relates to a device for saving water and preventing backflow. The shut-off valve and the means for controlling the flow rate of the water use only a holder and a sealing ring. Less material is needed so that the manufacturing cost can be reduced, the axial length of the valve closure member is shortened, and the structure of the valve closure member is simplified.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• CN 200920137849 [0002, 0004]
• US 6837267 [0003]

Claims (11)

A device for saving water and preventing backflow, characterized in that it comprises: a valve body ( 100 ), a water channel ( 110 ) in the valve body ( 100 ) is arranged; on the inner surface of the valve body ( 100 ) a sealing area ( 111 ) and a water saving area ( 112 ), which are in the running direction of the water channel ( 110 ) are arranged; a valve closure element ( 200 ) located in the water channel ( 110 ) is movably mounted, a sealing ring ( 210 ) located outside the valve closure element ( 200 ) is arranged; a feather ( 300 ), the valve closure element ( 200 ), wherein the valve-closure element is pressed by a spring force, and the direction of the spring force of the water-saving area ( 112 ) in the direction of the sealing area ( 111 ); when the water in the water running direction of the water channel ( 110 ) and the water pressure is greater than the spring force, the valve closure element ( 200 ) moves in the direction of water flow, so that the sealing ring ( 210 ) in the water saving area ( 112 ), wherein the sealing ring ( 210 ) is deformed by the water pressure in the radial direction, so that the cross-sectional area between the outer edge and the inner surface of the water-saving area ( 112 ) is reduced; while otherwise the sealing ring ( 210 ) in the sealing area ( 111 ), and the sealing ring ( 210 ) against the inner surface of the sealing area ( 111 ) seals. A device for saving water and preventing backflow according to claim 1, characterized in that the sealing area ( 111 ) is a cone-shaped area. A device for saving water and preventing backflow according to claim 2, characterized in that: on the inner surface of the water-saving area ( 112 ) annularly several protruding parts ( 113 ) are arranged, wherein in the initial state, the diameter of the outer edge of the sealing ring ( 210 ) is smaller than the diameter formed by the protruding parts ( 113 ) is formed, and the diameter of the outer edge of the sealing ring ( 210 ) between the maximum diameter and the smallest diameter of the sealing ring ( 111 ). A device for saving water and preventing backflow according to claim 3, characterized in that it comprises: a valve seat ( 400 ), a fitting part ( 410 ), a medium basis ( 420 ) and several additional elements ( 430 ), the middle basis ( 420 ) within the appropriate part ( 410 ), and several additional elements ( 430 ) with the appropriate part ( 410 ) and the middle base ( 420 ) are connected; where the matching part ( 410 ) with the valve body ( 100 ), and the spring ( 300 ) between the middle base ( 420 ) and the valve closure element ( 200 ) is supported. A device for saving water and preventing backflow according to claim 4, characterized in that in the middle base ( 420 ) a sliding opening ( 421 ) is arranged; on the valve closure element ( 200 ) a management staff ( 220 ) is projecting, the guide rod ( 220 ) with the sliding opening ( 421 ) and in the sliding opening ( 421 ) plugged. A device for saving water and preventing backflow according to claim 4, characterized in that at the middle base ( 420 ) a lower annular receptacle ( 422 ) is arranged, and an upper annular receptacle ( 230 ) on the lower surface of the valve closure element ( 200 ), the spring ( 300 ) with the management staff ( 220 ), and the upper end and the lower end of the spring between the upper annular receptacle ( 230 ) and the lower annular receptacle ( 422 ) is arranged appropriately. A device for saving water and preventing backflow according to claim 4, characterized in that on the inner surface of the valve body ( 100 ) at least one connection area ( 114 ) is formed, wherein the outer matching part ( 410 ) with the inner surface of the connection area ( 114 ) connected is. A device for saving water and preventing backflow according to claim 1 or 2 or 3 or 4 or 5 or 6 or 7, characterized in that on the outer peripheral surface of the valve closure element ( 200 ) an annular receptacle ( 240 ), the sealing ring ( 210 ) in the annular receptacle ( 240 ) is arranged, and in the closed state, at least a part of the sealing ring ( 210 ) directly by the water pressure in the water channel ( 110 ) is compressed. A device for saving water and preventing backflow according to claim 8, characterized in that the annular receptacle ( 240 ) an upper annular surface ( 241 ), a lower annular surface ( 242 ) and a cylindrical surface ( 243 ), the diameter of the upper annular surface ( 241 ) smaller than the diameter of the lower annular surface ( 242 ); in the de-energized state, the diameter of the outer edge of the sealing ring ( 210 ) greater than the diameter of the upper annular surface ( 241 ), and smaller than the diameter of the lower annular surface ( 242 ). A device for saving water and preventing backflow according to claim 8, characterized in that a protruding cylinder ( 250 ) at the central region of the upper surface of the valve closure element ( 200 ) is arranged, with protruding clamping elements ( 260 ) on the outer edge of the circular surface of the protruding cylinder ( 250 ) are arranged on the upper surface and a lower annular surface ( 251 ) formed around the protruding cylinder ( 250 ), and the annular receptacle ( 240 ) between the lower annular surface ( 251 ) and the protruding clamping elements ( 260 ) is trained. A device for saving water and preventing backflow according to claim 10, characterized in that between the adjacent protruding clamping elements ( 260 ) is formed a small gap.

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