FR2699203A1 - Flush mechanism for toilet - has two studs to prevent rotation of overflow, flush rod and overflow do not have to be aligned - Google Patents

Abstract

The flush mechanism consists of an overflow (3) which comprises a pair of studs (5) which can move in the two guides in the upper part of the bell to prevent rotation of the overflow. The height of the flush rod can be adjusted. A second rod is attached to it whose free end is joined in turn to a piece which moves in the upper opening of the overflow, so that the overflow and the pull rod do not have to be aligned. USE/ADVANTAGE - For flush toilets. Allows flush to be stopped immediately to save water. Can easily be adapted to cisterns of different heights.

Description

OBJECT OF THE INVENTION
The present invention, as has been said in one of the description of this specification, relates to improvements made to tank unloaders for lavatories; these improvements represent improvements in current unloaders and more particularly in those where it is possible to stop the discharge of water, at the desired time, in order to save water.

 One of the objects of the invention is to ensure that this type of unloader has an overflow tube guide, optimal in the axial direction, nevertheless devoid of rotational movement.

 Another object of the invention is to obtain, moreover, a system for adapting the unloader to the different heights of the tanks, which is extremely efficient and of simple installation.

 Other improvements tend to allow that the axis of the push-puller can be placed advantageously, when necessary, in a direction off-center with respect to the axes of the overflow and of the bell of the unloader. The incorporation of an anti-rotation system of the push puller has also been planned.

 On the other hand, it is possible to incorporate a sealing means between the float and the bell of the unloader, in order to prevent the anticipated entry of air inside the latter, when the air outlet water is being produced by the coping. The advantage thus obtained is that the float falls back at the end of the discharge and not before.

BACKGROUND OF THE INVENTION
In utility model number U-9101203 of the same petitioner as that of the present invention, a device for interrupting the discharge of water from the tanks is described, in which the control or the discharge button has a rod at the bent end, which is attached to one free end of the overflow tube. The actuation button presses on a spring coaxial with the bent rod, this assembly having means for guiding the latter. When one wishes to cause the interruption of the discharge, the button is pressed against the action of the coaxial spring so that the bent portion of the rod presses on the overflow tube causing it to descend to cause the relief valve to close.

 It has been observed that in order to correctly adjust the camber of the rod, with respect to the opening for introducing the latter into the overflow tube so that the interruption of the discharge can be carried out correctly, the existence of many means for adjusting the length of the bent rod is necessary to adjust the distance from the tank cover to the overflow tube, regardless of the fact that the latter may also have means for adjusting the length.

 In other tank unloaders, the push puller is simpler and is simply composed of a bent rod, the horizontal part of which is introduced into the upper window of the overflow, while the free end of the vertical part is tapped in an external part which is pulled to discharge.

DESCRIPTION OF THE INVENTION
In outline, the improvements made to tank unloaders for lavatories, which constitute the object of this invention, consist in providing a system for guiding the overflow tube, materialized by a pair of diametrically opposed pins, to the outer periphery of the overflow tube; each of the nipples is inserted and plays in one of the two longitudinal guides provided in the neck in which the body or the bell of the unloader ends at the top. These guides materialize by XCX enlargements of straight branches, obtained by the parallel phase shift or by widening the tubular wall of the throat of the unloader, and they finish before reaching the upper surface of the bell in order to prevent water from penetrating through the guides and that it does not cut the dump.

 Thanks to the overflow guide, it is possible to adapt to the union mechanism with the pusher, a height adjustment system, preferably defined by a piece in the shape of a "T", the vertical part of which is provided with 'a tapped hole; to this orifice is precisely connected the end of a straight rod, provided with an equivalent thread and secured to the actuation button or puller of the overflow tube axially. The thread of the T-piece "only interests the upper connection zone, and the chosen position is blocked because an elastic ring has been provided, integral with the upper part or the lower part of the horizontal part of the T ', or else, a duly tightened lock nut.

 Optionally, it may prove necessary that the closure device at will occur without the need to press the actuation button, as a second operation, but that the closure is obtained by releasing the shooter which closes the valve.

 This is obtained in accordance with the invention, by providing orifices at the upper base of the body or of the bell of the unloader. In this case, it is the flow of water passing through these orifices which causes the float to go down again to produce the closure.

 The XTX-shaped part which plays in the upper window of the overflow and which was mentioned in the third paragraph of this paragraph, can also adopt a different structure, the vertical part of the T "being able to be eliminated, which makes it possible to screw the rod in one of the threaded holes drilled in the horizontal part.

This new arrangement makes it possible to counteract the coaxial phase shifts that may occur in the tank between the push-puller and the unloader.

 D1 on the other hand, the push puller comprises an advantageous longitudinal groove, the function of which is to prevent the rotation of the push puller, since this avoids that the horizontal part as well as the push puller unscrew from the rod and lose the graduation at the height necessary for the proper functioning of the unloader. For this, it is also necessary an element such as a screw, fixed to the tubular body cited, at the same time that its end is introduced at 1. ease in the longitudinal groove. This is done once the correct location has been set.

 Other improvements have been made concerning a closure means between the overflow and the tubular or guide neck narrowing of the bell of the unloader, which in this case is devoid of the orifices at its base. This closure means is preferably composed of a conical or similar piece installed around the overflow and on the float, so that when the overflow and the other elements attached to it rise to cause the liquid outlet from the tank, the innovative conical piece will fit perfectly in the mouth of the tubular constriction, thus preventing the early entry of air inside the bell of the unloader. Thus, the total outlet of water from the tank is ensured, since until the level does not reach the lower openings of the bell of the unloader, the air will not penetrate inside it. this; with all this we make sure that the shutter rubber does not rest on the coping to plug it until the water level has reached the lower openings of the unloader bell.

 Below, in order to facilitate a better understanding of this descriptive memory and forming an integral part of it, we present a series of figures illustrating the object of the invention in a nonlimiting manner.

BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1.- It is a longitudinal elevational view, with a dial in section, of the bell of a tank unloader for lavatories, according to one invention.

 Figure 2.- It is a top view of what appears in Figure 1, including the overflow tube.

 Figure 3.- It is a longitudinal elevation view of the tube to which is attached to the upper part the device for adjusting the height of the pulsation control of the tank for its adaptation to different types of tanks. This device is essentially composed of a threaded rod which is connected by its upper end to the push-puller, while by its lower end it is connected to a T-piece "coupled in the upper window of the overflow tube.

 Figure 4. - This is a side view of what appears in Figure 3.

 Figures 5 and 6.- These are section views on a larger scale, of the upper end of the XTX part to which is attached the rod which descends from the push puller.

 Figure 7.- This is a sectional view of the evening shooter, assembled to the tank cover.

 Figure 8.- It is a sectional elevation view of a different push-puller from that shown in the previous figure, the latter being coupled to one inside a tubular body which attaches to the tank , all according to the invention.

Figure 9.- It is a sectional view along the section
AB of figure 8.

 Figure 10.- It is a longitudinal elevation view of the entire push-pull device attached to the tank, also comprising the upper part of the overflow.

The latter is connected to the first, by means of a threaded rod, the lower part of which is connected to a part which plays in the conventional overflow window; this part has a configuration different from that which appears in FIGS. 3 and 4.

 Figure 11.- It is a partial view where one essentially shows the connection of the rod with the part housed in the window of the overflow, in an off-center position.

 Figure 12.- It is a sectional elevation view of a toilet tanker unloader, which has a closure system established between a conical piece, placed in the overflow, and the mouth of the neck top of the unloader bell; all in order to avoid the entry of premature air inside it when the overflow rises to let out the water from the tank.

 Figure 13.- It is a partial view of the unloader, where one shows a closure system a little different from that of the previous figure, but just as effective.

 Figure 14.- It is a view of a toilet tank unloader, specially applied to tall tanks. These do not include a float since it is not necessary, although they do include the closure system mentioned in the previous figures.

 Figure 15.- It is a view similar to the previous one, where the closure system is somewhat different.

 Figure 16.- It is a view of an unloader for tall tanks, whose closure system intended to prevent the premature entry of air is different from the previous ones.

DESCRIPTION OF THE PREFERRED EMBODIMENT
With reference to the numbering adopted in the figures, we can see how the bell 1 or body of the unloader comprises the upper neck 2 for guiding the overflow tube 3. This guiding takes place in the axial direction, since these elements which move relatively relative to one another, have a cylindrical cross section with a slight degree of adjustment.

 In order to avoid relative rotation between these elements and to be able to easily adjust the height of the pulsation control of the tank, as we will see further on, the lower part of the overflow tube 3 has a torque of diametrically opposed nipples 5, which each play inside one of the two existing C-shaped guides 6 as an enlargement of the axial mold 7 of the cylindrical neck 2 of the body or of the bell 1 of the unloader, as well as appears clearly in Figure 2.

 It is considered sufficiently known that the bell 1 of the unloader is anchored by its lower ring 8 to the edge of the flow hole of the tank and that inside this bell play the shutter assembly and the float which is integral with the lower portion 9 of the overflow tube 3. The lower end of the overflow tube 3 is provided with a thread 10 to ensure, by means of a nut, the discoid closure membrane of the hole flow; the float and the closure membrane have not been shown, so as not to unnecessarily complicate the figures.

 With the aid of FIGS. 3 and 7 we can clearly see how the system for adjusting the height of the shooter or of the pulsation control of the tank is defined, by a piece preferably made of T ", designated under the reference 11. The vertical part 12 of the T-shape "of the part 11 is tubular and in union with the horizontal part 13 it is provided with a threaded orifice, to connect the lower and free end of the rod 14 which descends vertically of the tank push-pull, this rod 14 being provided with a long tapped lower zone 15. By screwing more or less the rod 14 in the part 11 in "T", we will manage to place the latter at the ideal height , that is to say, at the upper part of the window 16 of the overflow 3, so that when the push-puller is raised, the overflow tube 3 also rises instantly, producing the discharge at that time. The push-puller, once released, returns to its initial position, which means that the part 11 is supported on the lower edge of the window 16.

 Then, if it is pressed in the opposite direction of the spring which assists the pusher, the part 11 forces the overflow 3 to descend and causes the valve to close or the discharge to be interrupted.

 In Figure 4 we see how, advantageously, the vertical part 12 of the part 11 in XTX is of such a length that when one pulls completely from the shooter of the tank, the latter does not leave the portion enlarged overflow, to better serve as a guide.

 On the other hand, provision has been made for the possibility of drilling holes 17 in the upper base 18 of the bell or of the body of the unloader 1 in order to facilitate the interruption of the discharge of the water contained in the tank. .

 In order to immobilize the position of the rod 14 and that it retains its adjusted length, the structure of the part 11 in ZTX incorporates the elastic ring 19 (FIG. 5), or else, the ring 20 (FIG. 6) duly secured and on which the threaded threads of the rod 14 are nailed, the assembly acting as a self-locking nut, known by itself. This position can also be obtained by tightening the lock nut 21 previously installed in the threaded portion 15 of the rod 14 (see Figure 3).

 The push-pull 22, as it appears in FIG. 7, has a signal 23 which informs the installer when the optimal operating setting is reached.

 We have also seen above, when speaking of the functional characteristics of the unloader, that on certain occasions it may prove desirable that the interruption of the discharge of the water contained in the tank occurs at the moment when the action on the shooter stops, that is, when the shooter is released, resulting in maximum water savings. This is what one obtains from having provided, in this preferred embodiment, as already mentioned, several orifices 17 at the upper base 18 of the bell 1 or of the body of the unloader.

 The stream of liquid which passes through these orifices 17 towards the flow hole, causes the float and therefore that of the overflow tube 3 which is integral with it to descend and, consequently, the application of the closure membrane on the edge of the drainage hole, as we have already said.

 The push puller 22 is vertically guided in a tubular body 24 which is fixed to the cover 25 of the tank using a nut 26; at the lower part of this body, there is a recovery spring 27 of the push-pull.

 Other improvements of the invention (FIGS. 8 to 11), focus on a new push-pull device 28, as well as on another embodiment of the height adjustment system which incorporates a part 29; this part 29 plays in the window 16 of the overflow tube 3 and includes several threaded orifices 30, in one of which (the most indicated) is introduced the lower zone 15 of the rod 14 which is fixed at its end opposite to the push shooter 28 itself.

 On the other hand, this push puller 28 comprises a longitudinal groove 31 in which is embedded the end of a screw 32 or of another similar element fixed to the wall of the tubular body 33 to advantageously prevent the rotation of the push-pull relative to the tubular body 33.

 With this arrangement and more precisely thanks to the innovative part 29 which plays in the window 16 of the overflow tube 3, the present invention applies to a wider field, since it is not necessary that the coping of the tank and therefore the bell of the unloader, as well as the overflow tube 3, are coaxial with the push puller. The latter has lower longitudinal ribs 34 which serve as a signal to determine that it has reached the optimum operating setting when it is more or less screwed onto the rod 14. In the push-pull device presented in FIG. 7, for reaching this setting, as already mentioned, this is done by means of signal 23 from the push shooter.

 On the other hand, in order to avoid rotation of the push-puller 28, it can also be done by means of the tubular body 33, the interior of which has for example a polygonal shape which would be complementary to an equivalent section of the push-puller 28 , then not needing the longitudinal groove 31 and the screw 32.

 If we now focus on the bell 1 of the unloader and on the overflow tube 3, to which the corresponding float 35 is connected, in order to facilitate the total removal of the water from the tank, a frustoconical obturation part 36 has been provided, established in the float 35 and around the overflow 3, so that this part 36 plugs the mouth 37 of the upper neck 2 when the tank is discharged; the overflow 3 and the other elements connected to it then rise vertically to allow the exit of the water. In this situation, the innovative frustoconical closure piece 36 will fit perfectly in the mouth 37 of the upper neck 2 of the bell 1 of the unloader, thus advantageously preventing air from entering prematurely inside. of the latter 1, which would cause the premature descent of the float 35, without allowing the total evacuation of the liquid from the tank. Therefore, with this arrangement and in particular thanks to the frustoconical obturation part 36, until that the water level has not reached the lower openings of bell 1 of the unloader, there will be no air entry inside. Thus, when the overflow 3 is raised so that the water comes out to the outside, this occurs advantageously and safely, so that until all of the liquid has not been evacuated all of the liquid, neither the overflow 3, nor the other elements connected to it, will descend to their initial position.

 Although to prevent prematurely the entry of air into the bell 1 of the unloader, the sealing is done by means of the frustoconical part 36, it can be done in other different ways, such as that which appears in FIG. 13 There is provided an annular projection 38 emerging from the lower edge of the upper neck 2 belonging to the bell 1 of the unloader; the annular projection 38 adjusts when the overflow 3 is raised for the evacuation of the water, in a complementary annular reentrant 39 placed in the angular zone formed by the float 35 and the overflow 3.

 In FIGS. 14, 15 and 16, various unloaders for tall tanks appear, which, although they do not have a float 35, because it is not necessary, when the overflow 3 is raised to let out the water , as in the other tanks, the sealing to avoid the premature entry of air inside the bell 1 of the unloader occurs here in a similar way, and the result is obtained as good as with the other unloaders.

Claims (6)

CLAIM8  1.- DEVELOPMENT8 PROVIDED TO DECKARGEURS TANKS FOR EVENING CABINETS, of the type which include an overflow, connected to a float, the latter being vertically guided in an upper neck belonging to the bell of the unloader; a device for partial discharge or voluntary interruption capable of being incorporated therein; these unloaders are characterized in that the overflow tube (3), of fixed length or else adjustable in height, is capable of comprising guide means without rotation, being then preferably provided with two pins (5) diametrically opposite, each evolving by a guide (6) formed in the upper neck (2) of the bell (1) of the unloader; a height adjustment system has also been provided for the shooter or the pulsation control of the tank, materialized by a part (11) preferably adopting a T "shape in order to prevent it from coming out of its housing. at the upper end of the overflow tube (3) and provided with a vertical tapped orifice for the connection of the rod (14), also tapped, or the like, proceeding from the actuation control of the unloader.  2. IMPROVEMENT8 PROVIDED TO UNLOADERS8 OF TANKS FOR CABINET8 D'AI8ANCE, according to claim 1, characterized in that the body or the bell (1) of the unloader is likely to have one or more orifices (17) at its upper base (18) so that the closing or the interruption of the discharge occurs simply when the actuation control is released, because it is the flow of water passing through these orifices (17) which brings the whole of the shutter down and causes the closure.  3. IMPROVEMENTS TO THE UNLOADERS TANKS FOR EASE CABINETS, according to claim 1, characterized by the fact that another constructive embodiment of the system for adjusting the height of the push valve has been provided, this system being defined by a part (29) housed in the window (16) of the overflow (3); at the same time this piece (29) comprises several anchoring points intended for the connection of the rod (14) connected to the push-pull device by its upper end; all in order to counteract the coaxial phase shifts, if there are any, between the overflow (3) and the push-pull device itself.  4. IMPROVEMENTS TO THE UNLOADERS TANKS FOR ELEMENTS, according to the preceding claim, characterized in that an anti-rotation means of the push-puller relative to the tubular body (33) in which it operates has been provided, this anti-rotation means being preferably materialized by a screw (32) or by another similar element fixed to the tubular body (33) and the end of which is introduced into a longitudinal groove (31) of the push puller.  5. IMPROVEMENTS TO UNLOADERS OF TANKS FOR EVENING CABINETS, according to claim 1, characterized by the fact that a sealing means between the overflow (3) and the lower part of the upper neck (2) of the bell (1) of the unloader has been provided, all in order to prevent the premature entry of air inside the bell.  6. IMPROVEMENTS TO THE UNLOADERS TANKS FOR EVENING CABINETS, according to the preceding claim, characterized in that the sealing means is preferably determined by a collar or by an annular element (36) established around the overflow (3), so that when it rises to let out the water from the tank, this collar or this annular element (36) will block the mouth of the bell (1) of the unloader; provision has been made for the collar or the element (36) and the mouthpiece (37) to be arranged so  one replaces the other.