DE3038006A1 - Sanitary mixing valve with fixed and movable ceramic discs - has ports contoured to give temp. control by rotation over large angle - Google Patents

Abstract

The mixing tap comprises a housing (1-4,24) with cold water inlet and cold water outlets (11,12), of which one (12) connects with a hot water supply. A fixed (ceramic) disc has a segment-shaped inlet port and two contoured outlet ports (71,72). These ports are controlled by a similar disc which is rotatable and slidable on the fixed disc and has contoured ports (81,82), connected via chambers (91,92) in an actuating member (9) which engages the movable disc via seals (94). The arrangement is such that flow is controlled by the sliding movement and temp. by rotation of the upper disc.

Description

The invention relates to a mixing valve according to the preamble of Claim 1.

In a known sanitary mixing valve (DE-AS 15 50 060) the two ceramic valve disks are encapsulated in the valve housing. A lever linkage engages in this encapsulation to move and rotate the control disk. To the inlet bores arranged in the edge area for warm or. Cold water in the stationary valve seat disc is routed to the corresponding inlet ducts. Etv * a is one in the middle circular outlet bore provided in the valve seat disc. The one arranged in a sealing manner above the valve seat disc Control disk overridden with a central, basically

tore roughly rectangular control bores all three bores on the valve seat disc. With the outlet hole open all the time the water volume is regulated by linearly moving the control disc in relation to the valve seat disc. By twisting the control disk in a relatively small angular range is an opposite control of the "two inlet bores via

the/

the control hole possible, which causes the mixed water temperature control. The water that has passed through the control bore is deflected in a hood arranged above and flows through it the constantly free outlet hole to the outlet of the mixing valve.

giant "well-known mixing valves are used for connection to under the Pressure of a water network used pipes. They have the disadvantage of the relatively small angle of rotation range for temperature control the. Mixed water. Such short travels, in Experts, known as the so-called comfort zone, require very sensitive and precise adjustment control.

An object of the invention is to widen the range of application of such a mixing valve and to increase the adjustability to make the mixed water temperature more favorable.

A solution to this problem is provided by a mixing valve according to claim achieved.

The mixing valve according to the invention is for use in the so-called pressureless operation suitable, for example in connection with

an open hot water heater with which about the entering Cold water hot water is pressed to the constantly open outlet. The ring section-shaped design of the cold water inlet bore in connection with the corresponding shape of the two separate control bores in the control disk a relatively large angle of rotation range, so that such a valve has a large so-called comfort zone.

Claims 3 and 4 relate to advantageous embodiments the invention. Both after opening the valve to open it The cold water flowing directly to the outlet and the cold water flowing to the hot water heater are separated from each other, which means a streamlined and low-noise water flow results. The one that builds on one another and can be detached in an axial view Parts of the valve control favor assembly and interchangeability .

The invention is based on an illustrated embodiment explained in more detail below. Show it:

Fig. Λ a longitudinal section through a schematically shown mixing valve,

FIG. 2 shows a section along the line E - F in FIG. 1, FIG. J shows a view of a valve seat disk,

ρ, ORIGINAL

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Fig. 4- the view of a control disk,

Fig.? a view along the line C - D in fig. 1 on the hood covering the control disc,

6 shows the arrangement of the two valve disks in relation to one another in the "hot" and "open" positions;

7 shows the same representation as in FIG. 6 in FIG Position "cold" and "open",

Fig. Β a position of the valve disc in the position "Mix" and "On"

and

/ ig. 9 <e ^T chase the discs in the "mix" and ^{1 closed} "position.

Reference is first made to FIGS. 1 and 2. The number 1 XBb indicates the housing of a sanitary mixing valve. A sleeve body 2 is inserted into this housing, in the bottom of which a cold water inlet bore 23 and the cold water outlet bores 21 and 22 are provided, which mi '; corresponding inlet channels 11 and Λ2, indicated by arrows, are connected to the open outlet or to a hot water heater and to the cold water inlet channel 15.

_ ο _ BAD ORIGINAL

In this sleeve body 2 is a ceramic valve seat disc rotatably 7 used, in which a Kaltwassereiatrittsbohrung 75 and corresponding to the bores in the floor 24- found the outlet bores 71 and 72 provided. As shown in Fig. The outwardly widening outlet bores 71 and 72 on the circular valve seat disk 7 can be seen arranged approximately in the middle at a distance mirror-symmetrically opposite one another. The water inlet hole 73 has the shape a concentric ring section.

To control the bores of the valve seat disc 7 is on her sealing which is also preferably made of ceramic material existing control disk 8 sealingly attached. As can be seen in particular from FIG. 4, this disk has two through one Web 83 mirror-symmetrical control bores separated from one another 81 and 82 on. These control bores have approximately the shape of a segment of a circle and each have one on one side Breakthrough approach 81a or 82a. The sealing surface 84 on the opposite side, on the inside the Control edges are provided for overriding the inlet bore 73, essentially serves to seal the inlet bore 73 in the closed state.

Non-rotatable and linearly displaceable is connected to the Sfceuer-

■ 9 / ■

disc 7 put a hood in which to deflect the through the control bores 81 and 32 of the water passing through, deflecting spaces 61 and 62 that are separate from one another are provided.

These rooms are sealed against each other by the molded seal 94 · »which is arranged protruding in the groove 93 and acts against the corresponding sealing surfaces on the control disk 7.

The hood 9 can be mounted in the housing 1 in a simple manner held by the fastening ring 3, which in turn is held by the upper part 5 screwed into the housing 1. For guidance and for the articulated mounting of the rotary lever 6, which with; its Eadzapfen 61 for linear displacement and Rotation in the hood 9 with the control disk attached to it 7 engages, a correspondingly shaped socket 4 is provided, which is held between the fastening ring 3 and the upper part 5 and the one with the seal 10 against the upper part 5 seals to the outside.

The functionality of the target control is explained below:

9 shows the closed position of the two panes 7 and 8 to each other at a mean mixed water temperature position, in which the two exit bores 71 and 72 are kept open. The water inlet hole 73 in the Valve seat disk 7 is through the sealing surface 84 of the control disk 8 locked.

- 9

By linear displacement in the direction of the arrow on the control disk the water inlet hole 73 depending on the opening position released as shown in FIG. The separately entering through the two equally large free sections of the inlet bore 73 Water passes through the two control bores 81 and 82 in the deflection spaces 91 and 92 separately to the two open water outlet bores 71 and 72 on the valve seat disc. The linear guidance of the control disk is controlled by the corresponding guidance of the hood 9 and the actuation via the lever 6 achieved.

By rotating the control disk 7 takes place, as in Fig. 6 and 7 shows the mixed water temperature control. In Fig. 7 an outer rotational position is shown in which from the free section the cold water inlet bore 73 cold water through the control bore 81 or its extension 81a into the outlet bore 71

flows /

to the open outlet. The outlet bore 72 is opposite the inlet bore 73 blocked.

The opposite rotational position is shown in FIG. 6, in which the outlet bore 72, which leads to the hot water heater, largely is released through the control bore shoulder 82a and the control bore 82. In this position only what has entered flows Cold water from the inlet bore 73 released in certain areas to the outlet bore 72. The outlet bore 71 is blocked off from the inlet bore 75.

10

BAD ORfGfNAL

From these two rotational positions it can be seen that the control is possible in a very large rotational angle range, that is, one has a relatively large comfort zone. The control takes place exclusively by changing the cross-sections of the inlet bore sections .

Without changing the valve structure, the Waterways also use such a valve according to the invention for so-called Durccbetrieb, ie for the generation of ilischwasser, in which both the incoming hot water and the cold water is under the pressure of the pipe network. The annular section-shaped bore in the valve seat disc represents while the outlet hole is that of the control disc to Water volume and temperature control is overridden. the the other two separate bores are connected to the cold water or connected to the hot water supply.

** ». (» - ti t
»Ι - ** * - * - * * Q 3038Q06 Compilation of the reference symbols 1 casing 2 Sleeve body 21st Exit hole to the outlet 22nd Exit hole to the device 23 Quay water inlet bore 24 floor

3 fastening ring

4 socket

5 top

6 rotary levers
61 end spigot

7 valve seat disc

71 Outlet hole to the device

72 Exit hole to the outlet

73 Cold water inlet hole

8th Control disk 81 Control hole 81a Breakthrough approach 82 Control hole 82a Breakthrough approach 83 web 84 Sealing surface 9 Hood 91 Umlankraum 92 Around room 93 Groove 94 Molded seal 10 poetry

11 Kal ^ water outlet to the outlet 12 Kai "water outlet to the device 13 Potash water entry

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Claims (4)

Claims ly mixing valve in which a housing with a hot water inlet and a quay water inlet and an outlet two parallel, mutually spaced ceramic valve seat disks are arranged, one of which is designed as a stationary valve seat disk and that of the first disk opposite Outside via a lever linkage to limit the amount of water, the control disk is linearly displaceable and rotatable for temperature control. Inlet and outlet bores on the valve seat are overridden, whereby a hood is provided over this slide to divert the water that has passed through the control disk, characterized in that it can be operated with an open hot water heater a valve seat disc (7) with two approximately centrally arranged, mirror-symmetrically at a distance opposite exit bores (71, 72) to the outlet or to the hot water heater and an outer, annular section-shaped cold water inlet bore (73) and a control disk (8) with two mirror-syrametric control bores (81, 82) separated from one another by a web (83). 2. Mixing valve according to claim 1, characterized by a circular Control disk (8) with two essentially circular segment-shaped Control bores (81, 82), the control edges of which override the inlet projection (73). ORIGINAL INSPECTED 3. Mixing valve according to claim 1, characterized in that The hood can be moved and rotated linearly from the outside (9) is firmly connected to the control disc (8) in a sealed manner. 4. Mixing valve according to claim 3, characterized in that in the hood (9) two separate water deflection spaces (91, 92) are provided.