HRP970123A2 - Valve arrangement - Google Patents

Description

The invention relates to a valve arrangement, especially a toilet flushing device, according to the features specified in the introductory part of patent claim 1.

A valve arrangement of this type is known from US patent 5,301,710, and contains a common basic body with a valve housing and a screen housing. The valve is made as a valve with a ball valve, whose body of the valve, shaped like a ball, is fixed by means of a connecting sleeve for the supply pipe in the valve housing. In this way, it is not possible to change the valve in the installed state of the valve setup, because the connecting part connected to the pipeline must be removed, as well as the connecting part itself. The screen housing and its screen receiving channel are at an angle ranging between 90° and 180° to the axis of the valve body, and the flow channel inside the base body has approximately a Z-shaped flow. The inlet channel and the outlet channel are arranged mostly coaxially. In the installed position, the screen housing, which is closed with a cover, faces downwards, while the axis of rotation of the ball valve body is directed horizontally, and the rotary handle for activating the ball valve is located on the front side. In order for the sieve to be removed for cleaning after removing the sieve cover, there must therefore be free space under the sieve housing, which is not insignificant. The installation of the valve requires a space that is not insignificant.

From the German patent document DE 41 18 213 A1, a valve arrangement is also known, which is attached to the pipeline for flushing the toilet. This valve assembly contains a solenoid valve with a housing having an electromagnetically adjustable valve body. The inside of the valve housing cannot be accessed without difficulty, so checking or maintenance requires significant costs. Disturbances due to pollution, scale deposition or the like cannot be eliminated without difficulty and ultimately require a complete replacement of the valve.

Starting from this, the task of the invention was to improve the arrangement of valves of this type so as to achieve easy access, first of all, to the interior of the valve. The valve arrangement must be built according to the function and compact, and during assembly and installation it must allow easy handling. Production costs must be reduced to a minimum, checks or maintenance work must be carried out in a simple way.

The solution of that task succeeded in accordance with the features specified in the introductory part of claim 1.

The arrangement of the valve according to the invention is characterized by a construction in accordance with the function, and in the assembled state access to the internal space, through which water can flow, is possible without difficulty. The valve assembly can be mounted on the connection cabinet, so that the inside of the valve can be easily accessed from the front. The valve housing contains an opening, which can be closed with the valve cover. Two elements for activating the valve body are purposefully arranged or placed in the valve cover, whereby these elements are made, by choice, for different activation methods, such as mechanical, electric or hydropneumatic. The valve housing and the sieve housing, which is one-piece, consists of a single piece, and are closed at the front by means of a cover. Separate covers are advantageously provided for the valve housing and the sieve housing, so that, especially for maintenance, the sieve cover can be removed separately.

In the cover, intended for closing the screen housing, especially in the separate screen cover, there is a purposefully integrated screen, which can be removed when the cover is removed. During assembly or maintenance, the sieve can no longer be "forgotten" in this way. The valve body and its actuation elements are fixed with the valve cover in relation to the valve housing. By changing the valve cover, different activation methods can be pre-determined in a simple way, such as manual actuation or electric actuation. Since the valve cover is located on the front side, the valve set-up can, in the assembled state, be easily equipped for the desired actuation method. Between the sieve housing and the valve housing, there is usefully a connecting channel, which enters the annular channel of the valve housing This guarantees favorable flow control and/or negligible pressure loss.

In an advantageous embodiment, the valve arrangement further comprises an adjustment housing, with an adjustment body, for adjustment of pressure and/or flow rate. In this way, the setting of the valve can be purposefully adjusted to the water supply network with different pressures, without fear of its damage or destruction or added components.

In a special embodiment, the housing has at least one connecting flange for connecting the pipeline to the inlet channel and/or the outlet channel by means of a flange, whereby there is an annular seal between the two surfaces of the flanges. Both flanges have conical outer surfaces, which work together with the corresponding pipe clamp, so that when the pipe clamp is tightened, primarily by axial tightening, the ring seal creates a work-reliable connection and sealing.

Further embodiments and special forms of construction of the invention are specified in the following description, as well as in the subclaims.

In the following, the invention is explained in more detail using the examples shown in the drawings.

Thereby

Figure 1 shows a side view of a partially disassembled valve assembly,

Fig. 2 shows the appearance of the valve setup from Fig. l, viewed in direction II in Fig. l,

figure 3 shows the basic body, viewed in the same viewing direction as figure 2, but without the cover and connections,

Figure 4 shows a partial section viewed in the IV direction in Figure 3,

Fig. 5 shows a section along line V from Fig. 3, i

Figure 6 shows a section along line VI from Figure 3.

Fig. 1 shows a partially disassembled valve arrangement comprising a valve housing 2 with an opening and a screen housing 4, which are interconnected with a connecting channel 6 and are installed in a common body of the housing 8. The opening 3 of the valve housing 2 can be sealed in the area of the front side 9 by means of the valve cover 10, as indicated by the screw 11. The valve cover is here made as the upper part of the valve which can be actuated mechanically by means of the pressure sleeve 12, the valve body not being further shown. Instead of a mechanical valve, the valve cover in the scope of the invention can also contain electromagnetic valve components, i.e. it can be made so that they can be attached to the front side of the valve housing 2. The sieve housing 4 can also be hermetically closed on the front side 9 by means of the sieve cover 14, in which, furthermore, the sieve 16 is installed. The sieve cover 14 and the sieve 16 are mutually tightly connected add-on units, so that during assembly or during maintenance work, the sieve is always inserted into the inner space of the sieve housing 4. For fixing and sealed connection of the cover sieves 14, screws 18 are provided on the sieve housing 4. To ensure sealing, the ring seal 19 is used between the sieve cover 14 and the sieve housing 4. The inlet channel 20 enters the sieve housing, and the outlet channel 23 exits from the valve housing 2. The valve arrangement is installed primarily in the pipeline for flushing the toilet bowl, urinal or bidet, whereby the fresh water supply is connected to the inlet channel 20, and to the outlet channel 23 a is a pipe for a toilet bowl, urinal or bidet.

In a special embodiment, the body of the housing 8 contains a first flange 22, through which the inlet channel 20 passes and to which the connecting body 24 for the connecting pipe can be connected, which is not shown further here. The connecting body 24 contains a further flange 26, which with a pipe clamp 28 can be connected to the connecting flange 22. The connecting flange 22 has a special annular groove 30 on its axial face 30 for the ring seal 34. Both flanges 22, 26 advantageously have conical outer surfaces. 36, 38, which are attached to the conical inner surfaces of the pipe clamp 28. The conical external surfaces 36, 38, on their part, and the aforementioned, primarily conical internal surfaces of the pipe clamp 28, on their part, are adapted to each other so that when the pipe clamp 28 is tightened by means of the screw 40, the connecting flange 22 and the further flange 26 are mutually tightened in the direction of the longitudinal axis, whereby the aforementioned ring seal 34 is overstressed for reliable sealing. The annular groove 32 is adapted to the annular seal 34 so that when the pipe clamp is tightened, the annular seal is tightened towards the further flange 26 in the manner explained. Within the framework of the invention, it is also possible to alternatively and/or additionally, in the axial direction of the front surface of the further flange 26, place a groove for partial acceptance of the ring seal 34. The other end of the connecting body 24 is purposely made as an acceptance and connection for a pipe not shown here, which is used to supply the medium, especially water, to the valve setup. The coupling body 24 is usefully made of plastic which can be glued, and the connecting tube is glued to the outer surface of the coupling body. It is understandable that the scope of the invention also includes other ways of connecting to the said pipe.

The further connecting body 44 serves for the connection to the outlet channel 23 and can be connected to the body of the housing 8 in a suitable manner by means of the pipe clamp 48 and the screw 50. On the second connecting body 44, a further pipe can be connected, through which water especially for flushing the urinal can flow. , toilet bowls or similar. As for the rest, the above explanations relating to the connection of the pipeline by means of conical flanges on the first connecting body 24 that correspond to the second connecting body 44 apply.

The valve arrangement is installed primarily in the terminal box 52, which is shown here in dashed and dotted lines. The connection cabinet 52 has a bottom 54 and a front face 56 which can be closed by means of a cover, which is not further shown here. The front face surface 56 is located in the area of the front side 9 of the valve arrangement. According to the invention, the covers 10 and 14 are arranged in the area of the front or front side 9 and are therefore easily accessible at any time, also in the assembled state of the valve setup. To connect the valve setup with the connection cabinet 52, the housing body 8 has an opening, or through hole 58 for screws 60, screwed into the corresponding connection body 62 of the connection cabinet 52. This also expediently achieves the fixing of the housing body 8 in the connection cabinet from the front.

Fig. 2 shows the valve assembly in a position rotated 90° about the longitudinal axis 42 of Fig. 1, whereby the second connecting body 44 and the second pipe clamp 48, including the associated gasket 64, are now clearly visible. The further flange 66 of the housing body is also clearly visible. 8, wherein the flange 66 surrounds the outlet channel 23. The position shown corresponds to the usual installation position of the valve setup so that the inlet channel 19 is directed horizontally to the side and the side connection with the connecting pipe is enabled without difficulty. It is important, furthermore, that the outlet channel 23 is directed at a right angle vertically downwards and can therefore be easily connected to a pipe, which leads in the same vertical direction to a urinal, bidet or the like. The inlet channel and the outlet channel are arranged perpendicular to each other on purpose. From the supply pipe, connected to the connection flange 22, the medium, in particular water, comes through the inlet channel 19 into the adjusting housing 70, in which there is a rotating adjusting body 72. The adjusting body contains, coaxially to the rotating axis 76, a first ring seal 74 for sealing towards the outer space.

The adjustment body 72 also contains a second ring seal 78, placed obliquely to the pivot axis 76, in the area of the supply channel 80, through which the input means enters the inside of the adjustment housing through the supply pipe. The lower part of the adjustment body 72 is connected with the second ring seal 78 to the inlet channel 80, and in accordance with the pivoting position of the adjustment body 72, the input medium comes damped into the sieve housing 4, in which, if necessary, the particles contained in the medium are filtered by means of a sieve. The sieve has a smaller outer diameter than the inner diameter of the inner space of the sieve housing 4, so there is an annular channel into which the supplied medium enters. In this way, the medium flows through the sieve mainly in the radial direction.

The adjusting body 72 has an annular collar 82 which is attached to a connecting flange 84. This connecting flange 86 is firmly connected to the adjusting housing 70 by means of screws 86. The adjusting housing 70 and the inlet channel 80 are an integral part of the housing body 8, of which the valve body is by means of the valve cover 10 and its equally integrated screen housing by means of the screen cover 14 closed tightly and impermeable to liquid. Furthermore, the screws 60 are clearly visible, by means of which the body of the housing 8 is firmly connected to the connection cabinet 52 in the manner already explained.

Viewed in the same direction as Fig. 2, Fig. 3 shows the housing body 8 with valve housing 2, screen housing 4, connecting channel 6, adjustment housing 70 as well as inlet channel 19 with connecting flange 22 and outlet channel 23 with further flange 66, to which the drain pipe is connected. The housing body 8 is made as an integral, one-piece body with the housing explained, so that special joints, connections or the like are avoided. Installation costs are reduced to a minimum. The sieve housing 4 has an opening 90 at the bottom, through which the filtered medium enters the connecting channel 6 and from it into the channel 62 of the valve housing 2. The channel 92 is made at least partially annular and, for the sake of simplification, is denoted below as half of the annular channel 92.

As seen in the connection in Figure 4, the annular channel 92 surrounds the annular body 94, which has an edge 96 facing the front side 9, and is made as a valve seat. On the front side 9 there is the already explained valve cover with the valve body and its fixing elements, not shown here. The annular body 94 surrounds the central channel 98, which enters the outlet channel 23. Thus, when the valve is open, the agent, which flows through the connection channel 6, flows through the annular channel 92 via the valve seat 96 into the central channel 98 and into the outlet channel 23, and from it into outlet pipe, which is connected to the further flange 66. The valve seat located between the annular channel 92 and the central channel 98 can be released or closed with the valve body if necessary.

The valve body contains, in a known manner, a rubber-elastic or elastomeric seal, which, when placed on the valve seat 96, closes the connection between the ring channel 92 and the central channel 98. Activation of the valve body is primarily done electromagnetically, whereby the threads intended for activation and the anchor are not shown here connected to the valve body. The solenoid components of the valve are also located inside the valve body and are tightened with the valve cover in the valve body. By removing the valve cover from the valve housing, the electromagnetic components as well as the valve body can also be removed without difficulty. As already explained, within the framework of the invention, the valve cover can also contain elements for a different way of activating the valve body, or it can be built for a different way of activating, whereby in this place we mean primarily mechanical or hydropneumatic activation.

Figure 5 shows a section through the sieve housing 4 and the adjustment housing 70. The inlet channel 19 enters the adjustment housing 70 and, in accordance with the rotating position of the adjustment body, the medium flows to the opening of the sieve housing more or less damped.

Finally, Fig. 6 shows a section along line VI from Fig. 3 through the valve housing 2 with an annular channel 92 and an annular body 94, which surrounds the central channel 98. In the radial direction, the outlet channel 23 plunges into the central channel 98, at the open end of which there is a further flange 66.

Claims (10)

1. A valve arrangement, especially a toilet flushing device, which in the basic body (8) contains a valve housing (2) and a sieve housing (4), which can be closed using a sieve cover (14), whereby the basic body (8) contains inlet channel (19) and outlet channel (23), characterized by the fact that the valve housing (2) has an opening (3) that can be closed with the valve cover (10) and that the valve cover (10) and the screen cover (14) are arranged on the front side (9) of the valve housing (2) and the screen housing (4). 2. Valve arrangement according to claim 1, characterized by the fact that the valve cover (10) and the screen cover (14) are connected to the valve housing (2) and the screen housing (4) by means of screws (12, 18), whereby the screws can be tightened in the direction towards the front side (9), and/or that, furthermore, a connecting channel (6) is provided between the valve housing (2) and the sieve housing (4). 3. Valve arrangement according to claim 1 or 2, characterized by the fact that the front side (9) in the installed position is located mainly in a vertical plane and/or that the inlet channel (19) is placed mainly horizontally, and the outlet channel (23) is mainly vertical , and/or that the inlet channel (19) and the outlet channel (23) are placed at a mostly right angle to each other. 4. The valve arrangement according to one of the requirements 1 to 3, characterized by the fact that there is a sieve (16) on the sieve cover (14), whereby the sieve cover (14) together with the sieve (16) can be connected to the sieve housing (4) ). 5. Valve arrangement according to one of claims 1 to 4, characterized in that, furthermore, an adjustment housing (70) is provided with an adjustment body (72), and/or that the adjustment body (72) is placed in the housing for adjustment (70) so that it can be rotated, and/or that the adjustment housing (70) is installed in the body of the housing (8). 6. Valve arrangement according to claim 5, indicated by the fact that the adjustment housing (7), placed in the flow direction before the sieve housing (4), is connected to the inside of the sieve housing (4), which usefully has an opening (90) in its bottom. . 7. Valve arrangement according to one of claims 1 to 6, characterized in that the connecting channel (6) enters one, at least partially annular, channel (92) of the valve housing (2), and/or that the valve housing has an annular body (94 ) which is at least partially surrounded by the annular channel (92), and has a rim (96) formed as a valve seat, and/or that the valve seat (96) in the installed position also faces forward as the front side (9) of the valve housing (2), and/or that it is located in a vertical plane. 8. Valve arrangement according to one of claims 1 to 7, characterized in that the valve housing (2) has a central channel (98) in its bottom that enters the outlet channel (23). 9. The arrangement, especially the valve arrangement, according to one of the requirements 1 to 8, characterized by the fact that at least one connecting flange (22) and a corresponding further flange (26) are provided, that both flanges have conical outer surfaces (36, 38) and are interconnected with one pipe clamp (28), which has a conical outer surface (36, 38) corresponding to the inner surface, and that between the two flanges (22, 26) there is an annular seal (34). 10. The arrangement according to claim 9, characterized in that the ring seal (34) is partially located in the ring groove (32), especially in the axial front surface (30) of the flange (22).