Device for evacuating fluid

Abstract

Fluid evacuation device (10), comprising an inlet (12), an outlet (14) and a siphon system provided between the inlet (12) and the outlet (14), the siphon system defining a water seal volume (16) configured to retain at least a portion of the fluid flowing between the inlet (12) and the outlet (14), and comprising a guide (24) extending at least to the water seal volume (16) to force the fluid flowing between the inlet (12) and the outlet (14) to pass through the water seal volume (16), the evacuation device further comprising a brake (50) provided at least in part within the water seal volume (16), the brake (50) being at least partly movable relative to the guide (24).

Description

Technical field

[0001] This disclosure relates to the general field of plumbing, and more particularly to a device for discharging fluid, for example liquid, such as waste water. Such a device may be used, in particular, in sanitary equipment such as sinks, washbasins, bathtubs, showers, bidets, etc. Prior art

[0002] To limit the rise of odors through pipes, it is known to use a siphon at the outlet of sanitary equipment. A siphon is an arrangement that can take multiple forms and is configured to allow the flow of liquids while preventing or limiting the passage of gases. Typically, a conventional siphon is configured to retain a portion of the liquid flowing through it, this portion being traditionally called a "water seal", so as to block the passage of gases. For example, siphons are known from documents GB 671 130, EP 2 868 816, EP 3 708 725, GB 2 579 130, US 2013 / 025046 and WO 2020 / 175982.

[0003] When sanitary equipment is not used for a certain period of time, the level of the water seal in the siphon tends to gradually drop, eventually allowing gases to pass through and carry unpleasant odors. To limit this phenomenon, current siphons have a relatively large water seal, so that despite the gradual disappearance of the water seal, there is always a sufficient volume of liquid to block the passage of gases.

[0004] However, this solution makes current siphons using a water seal particularly bulky. In the case of sinks or basins, they take up significant space in the furniture located below. Efforts have been made to make siphons more compact, however their size remains significant. There is therefore a need for a new type of drainage device. Statement of the invention

[0005] For this purpose, the present disclosure relates to a fluid evacuation device as defined by claims 1 and 3, comprising an inlet, an outlet and a siphon system provided between the inlet and the outlet, the siphon system defining a water seal volume configured to retain at least a portion of the fluid flowing between the inlet and the outlet, and comprising a guide extending at least as far as the water seal volume to force the fluid flowing between the inlet and the outlet to pass through the water seal volume, the evacuation device further comprising a brake provided at least partly in the water seal volume, the brake being at least partly movable relative to the guide.

[0006] Subsequently, for the sake of simplification and without loss of generality, the fluid will be considered to be water, or even wastewater. However, the term fluid is to be understood in the broad sense, which may include liquids and gases, including liquids containing dissolved gas and / or solid particles or objects carried by the liquid. Similarly, the water seal volume is configured to retain a fluid regardless of the nature of this fluid.

[0007] The drain device is configured to drain water, entering through the inlet, to the outlet, via the siphon system.

[0008] The water seal may be a single piece, so as to allow no passage of gases; otherwise, there may be several water seals, mounted in parallel or in series.

[0009] The water seal volume is a volume whose shape and position are intended to retain a portion of the fluid flowing into the siphon system, this portion being the water seal. The water seal volume refers to the nominal volume occupied by the water seal; it is the maximum quantity of water that the drainage device, in its normal operating position, is configured to retain. The water seal volume is therefore a volume of fixed position, shape, configuration and capacity, regardless of the actual quantity of water it contains at a given time.

[0010] Since the guide extends at least as far as the water seal volume, a barrier to the passage of gases is formed jointly by the guide, which is a solid, and the water seal volume. Thus, the guide forces the fluid flowing between the inlet and the outlet to pass through the water seal volume. When this fluid is gas at atmospheric pressure and the water seal is full of liquid, passage is impossible, thereby preventing the rise of unpleasant odors.

[0011] The inventors found that the decrease in the water seal over time was mainly explained not only by the evaporation of the liquid, but also by air intakes causing relative depressions between the water seal volume and the outlet, compared to the pressure between the inlet and the water seal. These depressions, the force of which exceeds the force of gravity which maintains the water seal in the water seal volume, suck a part of the water seal towards the outlet, this part then being evacuated.

[0012] Faced with this problem, the present disclosure proposes to provide a brake that is at least partly in the water seal volume, the brake being at least partly movable relative to the guide. The brake aims to form an obstacle to the movements of the water in response to the depressions mentioned above. The brake therefore limits the emptying of the water seal under the effect of the depressions. However, since the brake is at least partly movable, in particular relative to the guide, but also to the water seal volume, it does not hinder the proper functioning of the siphon system. Typically, the brake can be configured to move in response to a flow of liquid from the inlet.

[0013] The fact that the brake is at least partly movable means that all or part of the brake can move relative to the guide. This movement may include deformation of the brake. The movable part of the brake may be located only in the water seal volume, only outside the water seal volume (it being remembered that during flow, the liquid level exceeds the water seal volume), or both in the water seal volume and outside this volume.

[0014] The presence of the brake therefore makes it possible to slow down the disappearance of the water seal over time. It is therefore possible to reduce the margin of quantity of liquid that must remain in the siphon system, therefore to provide a reduced water seal volume. This makes it possible to obtain, in fine , reduced size of the siphon system.

[0015] In some embodiments, the brake comprises a membrane that is more flexible than the guide. Thus, the guide may be substantially non-deformable under the effect of the pressure of the fluid in the flow between the inlet and the outlet, for example at least up to 3 bars, while the membrane of the brake may deform, in particular to allow good flow from the inlet to the outlet, even for pressures lower than 3 bars.

[0016] In some embodiments, the brake is provided between the guide and the outlet. In these embodiments, not only does the guide not impede movement of the brake toward the outlet to allow fluid flow toward the outlet, but the brake is able to brake a greater proportion of the water seal than if it were provided between the inlet and the guide.

[0017] The brake is configured to allow gases to pass through the brake on either side, outside the water seal volume. This passage can be via an opening in a part of the brake outside the water seal volume, or via a permanent opening provided around the brake. Thanks to the passage of gases, the brake is not directly set in motion by a downstream vacuum, which makes it more effective at retaining the water seal.

[0018] In some embodiments, the brake comprises a ring and a panel suspended within the ring by at least one hinged or deformable connection. The ring may be stationary relative to the guide, while the panel, via the connection, may be movable relative to the guide. The panel may comprise the aforementioned membrane.

[0019] In some embodiments, the evacuation device comprises a bowl and a pipe removably mounted on the bowl, the siphon system being formed jointly by the bowl and the pipe. In particular, the water seal volume may be formed jointly by the bowl and the pipe. These embodiments allow easy access to the siphon system, or even the water seal volume, in particular for cleaning them. Other components may or may not contribute to forming the siphon system and / or the water seal volume.

[0020] In some embodiments, the brake is mounted between the bowl and the pipe. The brake is easily accessible and can therefore be replaced and / or cleaned without difficulty.

[0021] In some embodiments, the brake comprises a portion forming a seal between the bowl and the pipe. Said portion therefore has the dual function of contributing to sealing and maintaining the brake relative to the bowl and the pipe. The portion forming a seal may be the aforementioned ring, or more generally a portion of the brake fixed relative to the guide.

[0022] In some embodiments, the conduit includes at least one bent portion in which the depth of the water seal volume decreases toward the outlet. This better directs water toward the outlet, facilitating evacuation and avoiding trapping solids in the water seal, which could impede movement of the brake.

[0023] In some embodiments, the brake includes a mounting position indicator or key. The mounting position indicator may be an inscription on the brake, informing the installer of the position in which to mount the brake. The indicator, such as an arrow or other sign, may need to be matched with a similar indicator provided on another part of the discharge device, for example the bowl or the pipe.

[0024] The mounting position key may be a part of the brake that prevents it from being mounted relative to another part of the discharge device, for example the bowl or the pipe, in a position other than a desired position. The mounting position key, usually a symmetry-breaking element, may need to be matched with a similar key provided on the other part of the device.

[0025] In some embodiments, the fluid evacuation device further comprises a rake or a grid. A rake has a base, which may or may not be straight, from which prongs extend transversely, one end of which is fixed to the base and the other end is free. The prongs may all extend in the same direction or in different directions. A grid may define openings with a closed contour. The grid may or may not be planar, for example, curved or planar in parts. The rake or grid can catch hair and other solids, and are examples of a filtering member.

[0026] In some embodiments, the rake or grid is mounted in a removable manner. This makes it easier to clean.

[0027] In some embodiments, the rake or grate is mounted between the inlet and the guide. As a result, solids may be retained before entering the siphon system, so as not to clog the siphon system. More particularly, the rake or grate may be mounted downstream of the inlet, optionally downstream of an inlet closure member such as a flapper.

[0028] This disclosure also relates to sanitary equipment comprising an evacuation device as previously described. Brief description of the drawings

[0029] Other characteristics and advantages of the subject of the present disclosure will emerge from the following description of embodiments, given as non-limiting examples, with reference to the appended figures. [ Fig. 1 ] There figure 1 represents, in perspective, a sectional view of a fluid evacuation device according to one embodiment. Fig. 2 ] There figure 2is an exploded perspective view of the fluid evacuation device according to the embodiment of the figure 1 . [ Fig. 3 ] There figure 3 is a front view of a brake according to the embodiment of the figure 1 . [ Fig. 4 ] There figure 4 is a sectional view of the fluid discharge device according to the embodiment of the figure 1 , in the presence of a flow. Detailed description

[0030] A fluid evacuation device 10 according to one embodiment is described with reference to figures 1 to 4 . As previously indicated, the discharge device 10 comprises an inlet 12 and an outlet 14, the fluid flowing from upstream to downstream from the inlet 12 to the outlet 14, as symbolized by the circulation arrows C on the figure 1 In this embodiment, the passage section of the inlet 12 is greater than or equal to the passage section of the outlet 14.

[0031] The evacuation device 10 is provided to allow the evacuation of fluid from sanitary equipment such as a sink, washbasin, bathtub, shower, bidet, etc. Such equipment may have a wall pierced with a drainage hole on which the evacuation device 10 may be mounted. In this case, taking as a reference the fact that the vertical corresponds to the direction of gravity, the inlet 12 may be provided to be substantially horizontal in the position of use of the evacuation device, as illustrated in the figure 1 . However, other configurations of inlet 12 are provided, for example when it is an overflow.

[0032] A siphon system is provided between the inlet 12 and the outlet 14, the siphon system defining a water seal volume 16. In this case, the water seal volume 16 comprises the volume located below a critical level line (orthogonal to the direction of gravity), the critical level line being defined such that if the water level in the siphon system exceeds the critical level line, the water flows naturally, by gravity, to exit through the outlet 14.

[0033] A guide 24 plunges into the water seal volume 16 (or, more generally, extends at least as far as the water seal volume 16) and prevents the passage of gases when the water seal is sufficiently high, as previously described. In other words, the guide 24 forces the fluid flowing between the inlet 12 and the outlet 14 to pass through the water seal volume 16.

[0034] Furthermore, as indicated previously, a brake 50 is provided at least partly in the water seal volume 16. In this case, as illustrated, the brake 50 is provided downstream of the guide 24, more precisely between the guide 24 and the outlet 14. The brake 50 can extend into the water seal volume 16 beyond the guide 24. The brake 50 is configured to provide resistance to movements of the water seal under the effect of depressions at the outlet 14.

[0035] An embodiment of the components of the evacuation device 10 will now be detailed.

[0036] In this embodiment, the evacuation device 10 comprises a bowl 20. As illustrated in the figure 2, the bowl 20 comprises a main body 22 in the form of a receptacle. The main body 22 is here of generally cylindrical shape, in particular with a circular section. The main body 22 comprises a bottom wall 23 closing one end of a tubular side wall 25. The bottom wall 23, here substantially planar, may or may not be orthogonal, as illustrated in the figure 1 , to the side wall 25. In this case, the bottom wall 23 is inclined so as to move away from the inlet 12 when passing through it towards the outlet 14. In this embodiment, the bottom wall 23 has no opening.

[0037] The side wall 25 may be provided with one or more openings, in particular at least one outlet opening 26 leading to the outlet 14. The outlet opening 26 will be described later. Optionally, at least one of the openings described below may also be provided.

[0038] An actuating opening 27 allows the passage of an actuating rod, for example for a mechanism for closing the inlet 12. The rod can be articulated, for example around a pivot or a ball joint mounted on a threaded connection 27a, here projecting outside the main body 22. By directly or indirectly actuating the rod, a user moves the mechanism for closing the inlet 12 so as to close or not the inlet 12. It is noted that the actuating opening 27 can be provided totally, as illustrated, or partially outside the water seal volume 16, in order to limit the interaction of the water with the articulation of the actuating rod.

[0039] The present evacuation device 10 is however compatible with closure mechanisms not requiring an actuating rod, for example which open and close by simple pressure from the user directly on the valve (mechanisms called "click-clack" in reference to the sound they produce, which sound is generally linked to the return of a spring and a heart-shaped cam). In this case, it is sufficient to plug the opening 27, for example by means of a simple cap screwed onto the threaded connection 27a.

[0040] A filtering opening 28 allows the passage of a filtering member 60, for example a rake 62 or a grid, intended to retain certain solid elements entering the evacuation device 10. The filtering member 60 can be mounted on a threaded connection 28a, here projecting outside the main body 22. As for the closure mechanism, but independently, if it is not desired to use a filtering member 60, the filtering member 60 can be replaced by a simple plug.

[0041] Other openings, not shown here, are still possible, for example to connect an overflow system to the bowl.

[0042] The main body 22 may be a single piece, or even made of the same material as the threaded connections 27a, 28a.

[0043] The bowl 20 further comprises a base 30 defining an opening, the base 30 here being annular around the opening. The base 30 may take the form of a nut, as illustrated, having a thread 31. The thread 31 may be configured to screw onto a drain of the sanitary equipment on which the drain device 10 is mounted. The base 30 may have external faces or any other feature facilitating its tightening onto said drain, for a good seal.

[0044] The base 30 is assembled to the main body 22 of the bowl 20, opposite the bottom wall 23. The base 30 can be extended by an annular skirt 30a, in the direction of the main body 22, in particular for its attachment to the main body 22. The assembly between the base 30 and the main body 22 can be done by snap-fastening. The assembly between the base 30 and the main body 22 can be provided so that the base 30 retains a possibility of rotation relative to the main body 22, so as not to impose a relative orientation between the main body 22 and the base 30. Indeed, the base 30 having a determined orientation relative to the sanitary equipment, via the tapping 31, it is desirable to then be able to mount the main body 22 on the base 30 according to the desired orientation, and not imposed, to facilitate the connections at the outlet 14.The base 30 therefore forms an intermediate part configured to allow the installer to select the orientation between the sanitary equipment and the evacuation device 10, rotating in a plane in this example.

[0045] A first seal 32, in this case an O-ring, for example mounted in a groove of the base 30, and more particularly here a groove of the skirt 30a, ensures the seal between the base 30 and the main body 22.

[0046] Furthermore, a second seal 34, here annular around the inlet 12, is provided to ensure sealing between the evacuation device 10 and the sanitary equipment on which it is mounted. In this embodiment, the second seal 34 is mounted on a surface of the base 30 opposite the main body 22.

[0047] The outlet opening 26 is extended by a tubular section 36, allowing the bowl 20, more particularly the main body 22, to be connected to a pipe 40. In this embodiment, as illustrated in the figure 1 , the section 36 projects outside the main body 22, from the outlet opening 26. The section 36 may be made in one piece with the main body 22.

[0048] The guide 24 may be located at the interface between the main body 22 and the section 36. The guide 24 here takes the form of an extension of the side wall 25 in the outlet opening 26. In this case, the guide 24 closes at least the part of the outlet opening 26 which is outside the water seal volume 16. In this embodiment, the guide 24 has a partly disc shape. The guide projects from an upper portion of the section 36 towards the water seal volume 16.

[0049] Furthermore, the pipe 40 is removably mounted on the bowl 20, in this case via a bayonet mounting in which lugs 41 provided on the outside of the pipe 40 engage in slots 37 provided inside the section 36. The lugs 41 and slots 37 could be interchanged between the pipe 40 and the bowl 20, and / or their internal / external character could be interchanged. The number of lugs 41 and slots 37, here three, can also be modified, as can their arrangement, here angularly equidistant. Furthermore, as can be seen on the figure 1 , the slots 37 may be at least partly through the thickness of the section 36. Indeed, as will be seen later, the seal between the pipe 40 and the bowl 20 may be achieved upstream of the slots 37. Alternatively, the slots 37 may be blind in whole or in part.

[0050] A mounting position key may be provided, which in this case takes the form of a collar 42 of the pipe 40. The collar is here provided outside the pipe 40. The collar 42 has an opening 42a configured to allow the passage of a tab 38 projecting from the section 36, here in the direction of the pipe 40. The opening 42a and the tab 38 may have a symmetry different from the bayonet mechanism previously described, so that the pipe 40 can only be mounted on the bowl 20, taking into account the bayonet and the key, in a single position. This position is that shown in the figure 1 . It is noted that the opening 42a is sufficiently extended to allow the rotation of the pipe 40 relative to the bowl 20 during bayonet-type mounting.

[0051] According to a variant, the bayonet mounting can act directly as a keying device, in particular when the slots 37 and / or lugs 41 are not angularly equally distributed.

[0052] Optionally, a lock 43, here taking the form of a lug projecting from the pipe 40 on the same side as the collar 42, can be provided. The lock 43 is in this case provided near one end of the opening 42a, and, independently, downstream of the opening 42a. When mounting the pipe 40 on the bowl 20, the lock 43 can press on the tab 38, which then deforms elastically, here outwards, to pass the lock 43. Once the lock 43 has passed, the tab 38 folds back into its original position, where it is blocked between the lock 43 and one end of the opening 42a. The lock 43 therefore illustrates an example of a lock configured to lock the pipe 40 in the mounted position on the bowl 20. The tightening and the resulting seal are therefore guaranteed.However, the sizing of the lock 43 and the tab 38 can be made so that the reverse movement is possible with a certain force, whereby the pipe 40 can be dismantled from the bowl 20.

[0053] As is further evident from the figure 1 , when the pipe 40 is mounted on the bowl 20, the collar 42 rests on the section 36, which further guarantees the correct positioning of the pipe 40 relative to the bowl 20.

[0054] The pipe 40 therefore comprises a fixing section 44 for its fixing to the bowl 20, in this case to the section 36. The lugs 41, the collar 42 and / or the lock 43 may be located on the fixing section 44. The fixing section 44 may be substantially coaxial with the section 36. In this case, it is housed inside the section 36, but the reverse is also possible, mutatis mutandis.

[0055] The pipe 40 may further comprise at least one bent portion 46 in which the depth of the water seal volume decreases in the direction of the outlet 14, as is apparent from the figure 1 For example, the bent portion 46 may be connected to the fixing section 44 and then extend at least partly upwards, i.e. in the direction opposite to the direction of gravity.

[0056] The inner shape of the pipe 40 may be made to facilitate its manufacture. For example, the inner shape of the pipe 40 may be free of undercut elements. When the pipe 40 is manufactured by injection molding, the inner shape is designed to be "pull-out," i.e., so that the mold pins can be removed from each other. In this case, the inner shape of the pipe 40 may have a rectangular section.

[0057] It can therefore be seen that the siphon system is formed jointly by the bowl 20 and the pipe 40. More particularly, the water seal volume 16 extends partly in the bowl 20 and partly in the pipe 40, in particular in the fixing section 44 and the bent portion 46.

[0058] The pipe 40 may also comprise an outlet section 48. The fixing section 44, the bent portion 46 and the outlet section 48 may be connected to each other, or even made of one piece, in this order from upstream to downstream. The outlet section 48 may comprise an opening forming the outlet 14. The fixing section 44 and / or the bent portion 46 and / or the outlet section 48 is tubular, for example of a generally cylindrical shape, with a circular section or other.

[0059] The outlet section 48 may be threaded, for example on the outside and at its downstream end, so that a nut 49 can be mounted thereon. The nut 49, when tightened, presses on an annular seal 49a, which, due to its conical bearing surface, is compressed both axially and radially. Thus, the seal 49a can provide a good seal between the pipe 40 and a downstream pipe connected to the outlet 42, inside the pipe 40. Of course, such sealing means or other means could alternatively be provided on the downstream pipe, in particular if this downstream pipe is intended to be connected to the outside of the outlet section 48.

[0060] As previously indicated, the sealing device 10 further comprises a brake 50, which is illustrated more particularly in the figure 3 .

[0061] In this embodiment, the brake 50 comprises a ring 52. The ring 52 is here circular. More generally, the ring 52 may have a shape corresponding to a section of the section 36 of the bowl 20 and / or of the fixing section 44 of the pipe 40. The ring 52 is, in this embodiment, analogous to an O-ring.

[0062] The brake 50 further comprises a panel 54. The panel 54 may be suspended inside the ring 52 by at least one articulated or deformable connection. In this case, the panel 54 is integral with the ring 52 and connected to the ring 52 by at least one, here two, material bridges 53. The material bridges 53 may be provided outside the water seal volume 16. The material bridges 53 may be spaced apart from each other. The material bridges 53 may together cover, by their own dimension and the dimension of the shortest spaces which separate them, an angular sector A less than or equal to 240°, preferably less than or equal to 180°, preferably less than or equal to 120°. Furthermore, the angular sector A may be greater than or equal to 45°, preferably 70°, preferably 90°. Thus, the panel 54 is well held in the ring 52, which avoids the risks of wear or even tearing, without its movement being hindered.

[0063] Indeed, due to their dimensions and / or their material, the material bridges 53 form a deformable connection allowing the panel 54 a certain movement relative to the ring 52. In particular, an end 55 of the panel 54 opposite the material bridges 53 can move relative to the ring 52. The brake 50 being deformable at least in part, it is at least in part mobile, and in particular at least in part mobile relative to the guide 24, as will be seen later.

[0064] In this embodiment, with the exception of the connection, formed here by the material bridges 53, the panel 54 is separated from the ring 52 by a gap 56, here substantially annular.

[0065] The entire brake 50 is here manufactured in a single piece. The brake 50 is here made of elastomer, for example thermoplastic such as TPU (thermoplastic polyurethane) or rubber. Compared to the guide 24 which can be made of plastic, for example ABS (acrylonitrile butadiene styrene), the panel 54 therefore forms a membrane of the brake, the membrane being more flexible than the guide 24.

[0066] Other types of connections between the ring 52 and the panel 54 are of course envisaged, for example an articulation, for example slide, pivot, ball joint, etc. In this case, the materials of the articulation can be rigid, for example at least as rigid as the guide 24.

[0067] Furthermore, as indicated previously, the brake 50 can be configured to allow the passage of gases on either side of the brake 50, outside the water seal volume 16. In this case, this is allowed by the fact that at least a portion of the gap 56 extends outside the water seal volume. Thus, the pressure of the gases on either side of the brake 50 is the same.

[0068] Further, the brake 50 may include a mounting position indicator (e.g., having some or all of the properties described above) and / or, as illustrated in the figure 3, a mounting position key. In this case, at least one projection is provided, here two projections 57, 58, not having the same symmetry as the rest of the brake 50. The projections 57, 58 may extend from the outside of the brake 50, here from the ring 52. The projections 57, 58 may have different sizes, in particular radially and / or circumferentially. The projections 57, 58 may cooperate with corresponding housings, provided here in the bowl 20 and more particularly in the section 36, to ensure the position and orientation of the mounting of the brake 50 relative to the rest of the evacuation device 10, and in particular to the water seal volume 16.

[0069] As illustrated in the figure 1, the brake 50 can be mounted between the bowl 20 and the pipe 40. In particular, the ring 52 can be wedged between the fixing section 44 of the pipe 40 and the section 36 of the bowl 20. The ring 52 can be compressed when the fixing section 44 is mounted on the section 36 of the bowl 20, for example thanks to the tightening allowed by the blocking of the tab 38 by the lock 43. Thus, the ring 52 is a part of the brake 50 forming a seal between the bowl 20 and the pipe 40. As noted previously, the ring 52 is positioned in the section 36 upstream of the slots 37; the slots 37 therefore have, in this embodiment, no sealing role to play.

[0070] The end 55 of the brake 50 extends into the water seal volume 16, whereby the brake 50 is provided at least partly in the water seal volume 16.

[0071] There figure 1illustrates the evacuation device at rest, when no fluid flows from the inlet 12 to the outlet 14. The situation in the presence of a flow is represented on the figure 4 . As can be seen in this figure, the flow in the device has the effect of pushing the movable part of the brake, in this case the panel 54, and in particular the end 55 opposite the material bridges 53, downstream. Thus, the brake 50 does not hinder the flow of water and makes it possible to maintain a satisfactory evacuation flow rate.

[0072] However, when a depression occurs which is reflected as far as the outlet 14, this depression is balanced on either side of the brake 50, so that it has no direct effect on the brake 50. The brake 50 can thus slow down the suction of the water seal contained in the water seal volume 16, which contributes to limiting the progressive disappearance of the water seal.

[0073] As indicated previously, the evacuation device further comprises a filtering member 60, here comprising a rake 62. Although the case of the rake 62 is detailed below, other filtering members are envisaged, for example a grid, which may have all or part of the characteristics presented with regard to the rake 62.

[0074] The rake 62 may comprise a base 63 from which protrude pins 64, here in several rows around the base 63. The base 63 is here rectilinear but could be curved. The pins 64 are here rectilinear but could be curved. The pins 64 may or may not be identical to each other.

[0075] The rake 62 may be mounted in the bowl 20, in particular in the main body 22. In this embodiment, the rake 62 is inserted through the filtering opening 28. The rake 62 may be fixed to the main body 22 by an insert 65 fitted into the filtering opening 28 (see the non-circular shapes on the figures 1 And 2 to ensure angular keying), the seal can then be achieved by a plug 66 screwed onto the threaded connection 28a, and optionally a seal 67. Note that the insert 65 can include a gripping element 65a, projecting on the side opposite the rake 62, to facilitate handling of the rake 62.

[0076] The rake 62 is therefore mounted in a removable manner in the bowl 20. In this case, as illustrated, the rake 62 is mounted between the inlet 12 and the guide 24. The rake 62 is therefore capable of retaining certain solid objects, for example hair, rings, etc., before they clog the siphon system. Other removable assemblies of the rake 62, than that described above, are of course envisaged.

[0077] It is noted that the rake 62 is eccentric relative to the insert 65 and / or to the opening 28. In this embodiment, the rake 62 is designed to be eccentric towards the side of the bottom wall 23. Thanks to these arrangements, space is cleared between the rake 62 and the inlet 12, for example to house the previously mentioned closure mechanism, while maintaining a reduced overall size of the evacuation device 10.

[0078] Moreover, thanks to the fact that the rake 62 is not integral with the cap 66, the rake 62 can be extracted from the bowl 20 by simple translation and not by the rotation necessary to unscrew the cap 66. Thanks to this property, any interference between the rake 62 and the possible closure mechanism, or any other mechanism provided in the bowl 20, is avoided.

[0079] The rake 62 and the insert 65 may be made of a single piece, in particular made of a single material, for example manufactured by molding.

[0080] Although the present description refers to specific exemplary embodiments, modifications may be made to these examples without departing from the general scope of the invention as defined by the claims. For example, although certain assembly means have been described, other assembly means, reversible or not depending on the case, may be used, for example of the screwing, bayonet, snap-fastening, interlocking, clamping type, etc. Furthermore, individual features of the different embodiments illustrated or mentioned may be combined in additional embodiments. Therefore, the description and the drawings should be considered in an illustrative rather than restrictive sense.

Claims

1. A fluid evacuation device (10), comprising an inlet (12), an outlet (14) and a siphon system provided between the inlet (12) and the outlet (14), the siphon system defining a trap seal volume (16) configured to retain at least a portion of the fluid flowing between the inlet (12) and the outlet (14), and comprising a guide (24) extending at least to the trap seal volume (16) in order to constrain the fluid flowing between the inlet (12) and the outlet (14) to pass through the trap seal volume (16), the evacuation device further comprising a brake (50) provided at least partly in the trap seal volume (16), the brake (50) being at least partly movable relative to the guide (24), characterized in that the brake (50) is configured to allow the passage of gas on either side of the brake (50), out of the trap seal volume (16), owing to an opening in a part of the brake outside the trap seal volume.

2. The fluid evacuation device according to the preceding claim, wherein the brake (50) is configured to allow the passage of gas on either side of the brake (50), owing to an opening provided around the brake outside the trap seal volume (16).

3. A fluid evacuation device (10), comprising an inlet (12), an outlet (14) and a siphon system provided between the inlet (12) and the outlet (14), the siphon system defining a trap seal volume (16) configured to retain at least a portion of the fluid flowing between the inlet (12) and the outlet (14), and comprising a guide (24) extending at least to the trap seal volume (16) in order to constrain the fluid flowing between the inlet (12) and the outlet (14) to pass through the trap seal volume (16), the evacuation device further comprising a brake (50) provided at least partly in the trap seal volume (16), the brake (50) being at least partly movable relative to the guide (24), characterized in that the brake (50) is configured to allow the passage of gas on either side of the brake (50), out of the trap seal volume (16), owing to a permanent opening provided around the brake outside the trap seal volume (16).

4. The fluid evacuation device according to any one of the preceding claims, wherein the brake (50) comprises a membrane which is more flexible than the guide (24).

5. The fluid evacuation device according to any one of the preceding claims, wherein the brake (50) is provided between the guide (24) and the outlet (12).

6. The fluid evacuation device according to any one of the preceding claims, wherein the brake (50) comprises a ring (52) and a panel (54) suspended within the ring (52) by at least one articulated or deformable connection.

7. The fluid evacuation device according to the preceding claim, wherein the articulated or deformable connection comprises at least two material bridges (53) spaced apart from one another and provided outside the trap seal volume (16).

8. The fluid evacuation device according to any one of the preceding claims, comprising a bowl (20) and a pipe (40) removably mounted on the bowl (20), the siphon system being formed jointly by the bowl (20) and the pipe (40).

9. The fluid evacuation device according to the preceding claim, wherein the brake (50) is mounted between the bowl (20) and the pipe (40), and preferably comprises a part (52) forming a seal between the bowl (20) and the pipe (40).

10. The fluid evacuation device according to claim 8 or 9, wherein the pipe (40) comprises at least one bent portion (46) in which the depth of the trap seal volume (16) decreases toward the outlet (14).

11. The fluid removal device according to any one of the preceding claims, wherein the brake (50) comprises a mounting position indicator or positioning key (57, 58).

12. The fluid removal device according to any one of the preceding claims, further comprising a rake (62) or grate removably mounted between the inlet (12) and the guide (24).

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