FR2720421A1 - Flushing device with a double control knob for delivering, by actuation of each control, a predetermined flush volume. - Google Patents

Abstract

A flushing device with two control buttons 2 and 3, one button 3 of which corresponds to the evacuation of a small predetermined volume of water and the other button 2 of which corresponds to the total evacuation of the tank or to evacuation of a large predetermined volume of water. An external float 18 is mounted at one end 19a of a lever 19, the other end of which cooperates with a valve holder overflow tube 12. The lever 19 cooperates, in the high volume position, with a bell 17 forming a float and surrounding the overflow tube 12. The lever 19 cooperates in the small volume position with the overflow tube 12 and the outer float 18. Application to the manufacture of flushing mechanisms.

Description

DOUBLE BUTTON WATER HUNTING DEVICE

  ORDER FOR DELIVERING BY

  ACTUATION OF EQ E Q CONTROLS A VOLUME

HUNTING PREDETERMINE

  The invention relates to a flushing device with a double control knob making it possible to deliver, by actuation of each control, a volume of

predetermined hunt.

  The document FR-2,672,322 describes a flushing device for delivering different predetermined volumes of water. In this known device, an actuating member comprises a plurality of elements each of which cooperates with the support of the movable head of the valve provided for this purpose with retaining means arranged vis-à-vis blocking systems operated independently one of the 'other. The device comprises a plurality of outer floats pivotally mounted at a lever end whose other end cooperates with the overflow valve door. According to the setting of each outer float, a predetermined flushing volume is obtained corresponding to the blocking by the lever of the corresponding float of the overflow tube in the up position and the unblocking of the overflow tube as soon as the float is no longer subject to the force of Archimedes and no longer acts on the

  lever to get a blocking effect.

  This known device generally gives satisfaction, but has a large external volume, which leads to mounting difficulties in the

  small flush cisterns.

  The object of the invention is to overcome these drawbacks by proposing a new flush device with a double control knob, a small external volume and easily mounted on most

known flush tanks.

  The invention relates to a flush device with two control buttons, one of which corresponds to the evacuation of a small predetermined volume of water and the other corresponds to the total evacuation of the reservoir or discharging a predetermined large volume of water, of the type having an outer float mounted at one end of a

  lever whose other end cooperates with a tube of

  full valve holder, and a float filling valve, characterized in that said lever cooperates in the so-called large volume position with a bell surrounding the overflow tube and forming a float by rendering said external float inactive, and in that said lever cooperates in the so-called small volume position with the overflow tube and the outer float by blocking said

bell in the low position inactive.

  According to other features of the invention: said bell has a passage for a first conformation of the other end of said lever, this first conformation acting on a cooperating conformation of the overflow tube, to hold the tube too much solid in the high position in said second small volume position; said bell has a conformation acting on a second conformation of the other end of said lever, this second conformation being pushed back by the bell so as to render the outer float inactive in said first position of large volume; said other end of said lever comprises a first conformation extending radially internally to the bell in the position of small volume and a second conformation flush with the bell and raised by the bell in the position of large volume; - The device includes a height-adjustable caliper and adjustable zippers in length; - The buttons are operated by pushing and the pulls raised upwards by a means of movement reversal; - The motion reversing means comprises two rocking levers about an axis articulated in their median parts; according to an alternative embodiment, the buttons and the pulls are actuated simultaneously by pulling upwards; - The float fill valve is separably attached to a height-adjustable yoke at a position above the overflow tube at a predetermined distance; - the float fill valve is attached to the stirrup so that the connecting end of the

  valve is placed substantially on the caliper.

  The invention will be better understood thanks to the

  following description given as an example no

  limiting with reference to the accompanying drawings in which: Figure i shows a schematic vertical sectional view of a flush device according to

the invention in closed position.

  FIGS. 2 and 3 show schematically in elevation and in partial section along line III-III of FIG. 2, a device according to the invention when

  the operation of the small volume control knob.

  FIG. 4 represents an enlarged partial view corresponding to the blocking of the device in a small position

hunting volume.

  Figures 5 and 6 show schematically partial sectional views along the line V-V of Figure 6 and in elevation of another embodiment of the invention. With reference to FIGS. 1 to 4, in which the identical marker elements describe elements that are identical or functionally equivalent to one another, a flushing device comprises an outer tank 1, in which a non-float feed tap is mounted. represent. The outer tank 1 has a lid carrying a set of two buttons 2 and 3: the button 2 corresponds to the total evacuation of the tank or the evacuation of a large predetermined volume of water, while the button 3 corresponds evacuation of a small

pre-determined water volume.

  Each button 2 or 3 acts on a push rod 4 or 5 sliding in the receptacle 6 for mounting and fixing buttons 2 and 3 on the cover 1a, of the tank 1. Push rods 4 and 5 cooperate with the end levers 7 and 8 each having two ends 7b, 7b and Sa, b in the form of hook, so that the push on a button 2 or 3 produces the descent of an end 7a or 8a and the raising of the end opposed 7b or 8b of each lever 7 or 8. The pivoting levers 7 and 8 are preferably articulated about a common axis 9 mounted integral with a stirrup 20. The raising of an end 7b or 8b causes the raising of a pull tab 10 or 11 for actuating a member causing the lifting of an overflow tube 12 carrying a sealing valve 13 of elastomer. In known manner, the valve 13 cooperates with a seat of a plug 14 provided with lateral orifices 14a and mounted with a bung nut and a bung seal. The bung 14 is surmounted by a prisoner flange 15 between the bung 14 and a bonnet 16 fixed

  to the bung 14 by a bayonet attachment system.

  Radially internally to the hood 16, there is disposed a bell 17 forming a float surrounding the overflow tube 12, and radially externally to the cover 16 an outer float 18 is adjustably mounted at one end 19a of a pivoting lever 19 whose Another end 19b cooperates with the overflow tube 12. The lever 19 is pivotally mounted about an axis integral with the cover 16. The cover 16 is connected to a stirrup 20 carrying the axis 9 common to the two levers 7 and 8 tilting at ends 7a, 8a, 7b, Sb in the form of a hook. In a first variant of the invention not shown, the cover 16 is integral and integral with the bracket 20 above; in a second variant of the invention (FIG. 2) the stirrup 20 is adjustable in height by snapping, and the drawbars 10 and 11 are adjustable in length, so as to adjust the total height of the device to the

height of the tank 1.

  The operation of the device is as follows: by pressing the button 3 in the direction of arrow A of Figure 2, the push rod 5 pushes on the end 8a of the rocking lever 8 and actuates the pull tab 11 upwards. The pull tab 11 is connected by its lower end 21 directly to the tube 12, while the pull tab 10 is connected directly by its lower end 22 to the annular bell 17 forming a float. Therefore, actuation of the small volume knob 3 causes only the rise of the overflow tube 12, while the float bell 17 is held in the down position by the end 19b of the lever 19. The further movement of the rise of the overflow tube 12 approaches a notch 23

  secured to the float 12 of the end 19b of the lever 19.

  The notch 23 pivots the lever 19 in the direction of the arrow B of FIG. 3 by an angle small enough for the bell 17 forming a float to remain locked in the inactive low position by the end 19b of the lever 19. The notch 23 then protrudes from the end 19b of the lever 19 and snaps onto it causing the inclination of the lever 19 and the outer float 18 relative to the vertical while constantly blocking the bell 17 by

inactive low position.

  During the aforementioned uplift of the tube of the

  full 12, the tank water is evacuated according to the arrow E of Figure 3 to a level corresponding to a floating loss of the float 18: at this time, the weight of the float 18 completely tilts the lever 19 and the outer float 18 downwards, which causes the disengagement of the snap between the notch 23 and the end 19b of the lever 19 and therefore the fallout of the tube 12 overflow and the sealing by the

valve 13 of the tank 1.

  The predetermined small volume of water that has elapsed between the start of evacuation and the instant when the outer float 18 is swinging down has caused disengagement of the notch 23 and the end 19b of the lever 19 may be adjusted at will by displacement of the outer float 18 along the vertical portion 19a constituting one end of the lever 19: the tests have shown that the displacement of the outer float 18 led to evacuations of small volumes of water predetermined and reproducible constant control . When pressing the button 2 of large predetermined water volume, this action results in an uprising of the pull tab 10 which simultaneously raises the bell 17 forming a float and the overflow tube 12 resting on it by a shoulder; the outer float 18 and the lever 19 corresponding thereto are then rendered totally inactive and the device operates in substantially the same manner as a known prior art device, in which the bell 17 forming a float provides a certain delay in closing in the purpose to allow evacuation of a large volume of water

  predetermined outside the tank 1.

  FIG. 4 shows the blocking of the tube 12 of the overflow in the high position thanks to the cooperation of the notch 23 integral with the overflow tube and a conformation of the end 19b forming a retaining pawl for the tube 12 of FIG. overflow, while other retaining notches 24 integral with the bell 17 are pushed into the lower position by the lever 19 so as to keep the bell 17 forming a float in the inactive low position. For this purpose, it is expected that the notch 23 substantially exceeds a lateral slot in the bell 17 forming a float and it is expected that the notches 24 push the end 19b of the lever 19 when actuating the button 2 large volume to make the lever 19 and the outer float 18 completely inactive. To ensure these functions, the end 19b is advantageously shaped to present a finger 25 located in front so as to cooperate only with the notch 23 in the small volume position and at least one other finger 26 set back from the finger 25 so as to cooperate with at least one notch 24 of the bell 17 forming a float. A notch 24 of the bell 17 raises a finger 26, so as to lock the lever 19 in an inactive position corresponding to the absence of

contact of the finger 25 and the notch 23.

  Thus, the bell 17 forming a float comprises a passage for a first conformation 25 of the lever 19 which acts on a conformation 23 complementary and cooperating the tube 12 of overflow, so as to maintain the tube 12 of overflow in high position in the position of small volume, position in which the bell 17 forming a float is locked in the lower position by the action of the lever 19 on the lower end 27 of the groove

  practiced in the bell 17 forming a float.

  The bell 17 forming a float comprises at least one conformation 24 acting on a second conformation 26 of the end 19b of the lever 19, this end 19b being pushed back by the conformation so as to make the lever 19 and the float 18 inactive when one operates

the button 2 of large volume.

  Of course, the invention extends to all modifications of shape and all embodiments in which a radially inner conformation 23 cooperates with a conformation 25 extending radially internally of a lever 19 carrying an outer float 18. The mechanism of control by actuation of the buttons 2 and 3 is in the variant shown a reversing mechanism of movement performed by the levers 7 and 8; the invention also covers the case of a direct mechanism, that is to say without movement reversal in which, instead of two buttons 2 and 3 pushing operation, two drawbars 2 and 3 are provided. lifting actuation; of course, in this case, the drawbars 2 and 3 are preferably connected directly to the drawbars 10 and 11 so that the presence of the levers 7 and 8 with reversal of

movements is no longer necessary.

  The combination of the notches 23 and 24 respectively located on the overflow tube 12 and the flotation bell 17 imposes the presence of a slot 27 in the float bell 17 to cooperate with the end 19b of the lever 19 carrying the float 18. To avoid any deindexing of this slot 27 in relative rotation about a vertical axis, provision is made to have at the upper end of the cover 16 an indexing means constituted for example by the combination of a notch in the 16 and a rib on the overflow tube 12. Since the notch 23 is prominent and protrudes slightly from the slot 27 framed by the two

  24, it is sufficient to index the tube of the

  full 12 in rotation to also get indexing in

  rotation of the bell 17 forming a float.

  According to an advantageous variant which is not shown, provision is made for the outer cover 16 to be made of two latching and indexable parts in relative position relative to each other by a quarter turn preferably, this complementary means being arranged for example at the level of the flange 16a of the cover 16 shown in FIG. 1: this advantageous variant facilitates assembly in that it makes it possible to arrange the outer lever 19 and the outer float 18 longitudinally, that is to say

  parallel to the length of the tank 1.

  With reference to FIGS. 5 and 6, the height-adjustable yoke 20 of the device according to the invention is designed to receive a bracket 30 in the form of a snap-on and detachable bracket at will, the height of the support 30 varying simultaneously with the height of the device. 20. The bracket 30 in the form of a bracket has on the unopened side 30a, a ring-shaped configuration 30a adapted to receive a float valve 31 of a type known per se. The float valve 31 is engaged in the ring of the side 30a and secured thereto by a washer 32 and a nut 33, in a position such that the end piece 34 intended to receive a flexible pipe C is disposed substantially in the vertical extension of the stirrup 20, so as to be protected by the stirrup 20 against external shocks while facilitating the mechanical assembly of the

tap 31 on the stirrup 20.

  Thus, by fixing the valve 31 directly on the stirrup 20 at a predetermined distance of the order of 5

  centimeters above the level of the overflow tube

  above the level of the overflow tube 12, it eliminates any risk of re-aspiration due to a depression in the column of the water distribution network, regardless of the type of tank and regardless of the height adjustment of

the stirrup 20.

  The invention described with reference to a particular embodiment is in no way limited to it but covers, on the contrary, any modification of form and any variant of embodiment within the framework and in the spirit of

  the invention defined by the appended claims.

R E V E ND I CATI 0 N S

  1. - Flush device with two control buttons, one of which corresponds to the evacuation of a small predetermined volume of water and the other of which corresponds to the total evacuation of the tank or to the evacuation of a predetermined large volume of water, of the type comprising an external float mounted at one end of a lever of which

  the other end cooperates with an overflow tube carrying

  valve, and a float filling valve, characterized in that said lever (19) cooperates in the so-called large volume position with a bell (17) surrounding the overflow tube (12) and forming a float by making said float (18) outside inactive, and in that said lever (19) cooperates in the so-called small volume position with the overflow tube (12) and the outer float (18) by blocking said bell (17) in position

inactive bass.

  2. - Device according to claim 1, characterized in that said bell (17) comprises a passage for a first conformation (25) of the other end (19b) of said lever (19), this first conformation (25) acting on a conformation (23) cooperating with the tube (12) of overflow, to maintain the tube (12) of overflow in high position in said

second position of small volume.

  3. - Device according to claim 1, characterized in that said bell (17) comprises a conformation (24) acting on a second conformation (26) of the other end (19b) of said lever (19), this second conformation ( 26) being pushed back by the bell (17) so as to render the float (18) outside inactive

  in said first position of large volume.

  4. - Device according to one of the claims

  preceding, characterized in that said other end (19b) of said lever (19) comprises a first conformation (25) extending radially inwardly to the bell (17) in the small volume position and a second conformation (26) flush with the bell (17) and raised by

  the bell (17) in the position of large volume.

  5. - Device according to any one of

  preceding claims, characterized in that the

  device comprises a stirrup (20) adjustable in height and

  drawbars (10, 11) adjustable in length.

  6. - Device according to claim 5, characterized in that the buttons (2, 3) are actuated by pushing and that the pulls (10, 11) raised upwards.

  by means of motion reversing means (8, 9).

  7. - Device according to claim 6, characterized in that the movement reversal means comprises two levers (8, 9) tilting about an axis

  articulated in their median parts.

  8. - Device according to claim 5, characterized in that the buttons (2, 3) and the drawbars (10, 11) are actuated simultaneously by pulling upwards. 9. - Device according to any one of

  preceding claims, characterized in that the

  float valve (31) is separably attached to a height-adjustable yoke (20) at a position above the overflow tube (12) at a position

predetermined distance.

  10. - Device according to claim 9, characterized in that the valve (31) float filling is attached to the bracket (20) so that the tip (34) connecting said valve (31) is placed

substantially on the stirrup (52).