DRAINAGE SIEVE

Abstract

The invention relates to a method for opening and/or closing a drainage sieve comprising the steps of inserting the drainage sieve into a drain of a water basin or the sieve of a drain of a water basin, the drainage sieve comprising a closure part, a sieve part and a guide, executing a movement of the closure part guided by the guide of the drainage sieve to open or close the drainage sieve. The invention further relates to a drainage sieve comprising a sieve part, a tubular closure part, and a guide element, wherein the tubular closure part is arranged movably relative to the sieve part.

Description

The invention relates to a method for opening and/or closing a drainage sieve comprising the steps of inserting the drainage sieve into a drain of a water basin or the sieve of a drain of a water basin, the drainage sieve comprising a closure part, a sieve part and a guide, executing a movement of the closure part guided by the guide of the drainage sieve to open or close the drainage sieve. The invention further relates to a drainage sieve comprising a sieve part, a tubular closure part, and a guide element, wherein the tubular closure part is arranged movably relative to the sieve part.

STATE OF THE ART

Water basins, such as sinks, shower trays or similar containers, usually have a fixed sieve in the drain, but the openings are so large that only large particles, e.g. cleaning utensils, are retained and do not enter the drain. However, smaller dirt particles, e.g. food scraps and hair, are not retained by the drain's sieve and can lead to blockages in the drain. Furthermore, this fixed drain sieve is located deep below the bottom of the basin, making it difficult to clean. In addition, there are small sieves that can be inserted into the fixed drain. These are usually narrower, clog more quickly and are similarly difficult to clean.

It is therefore an objective of the present invention to provide a drain sieve that can be inserted into a drain of a conventional water basin, that can be easily removed and easily cleaned again and yet protects the drain of the water basin from contamination and clogging. Furthermore, it is an objective of the invention to provide a method that ensures protection against contamination and clogging of the drain during the draining of water from the water basin.

The objective is solved by means of the method for opening and/or closing a drainage sieve according to claim 1. Advantageous embodiments of the invention are set out in the subclaims.

The method according to the invention for opening and/or closing a drainage sieve has two method steps: In the first process step, the drainage sieve is inserted into the outlet of a container for temporary filling with water. For the purposes of the invention, a container for temporary filling with water is a container which can be filled with water and has a drain for emptying the water connected to the container by virtue of its design. The container can therefore be, for example, a washing basin, a shower or bath tub or a sink. Such containers usually have a fixed sieve in the drain, but the openings are so large that only large particles, e.g. cleaning utensils, are retained and do not enter the drain. However, smaller dirt particles, e.g. leftover food and hair, are not retained by the drain sieve and can lead to blockages in the drain. According to the invention, the drain sieve has a closure part, a sieve part and a guide.

In the second method step, a movement of the closure part guided by the guide is carried out to open and/or close the drainage sieve. The movement of the closure part relative to the sieve part can be a linear movement, a rotational movement (rotary movement) or a combination of linear and rotary movement. The guide guides the movement of the closure part in such a way that the drainage sieve according to the invention is reliably opened or closed.

The method can be used in many different areas of application. Thus, an application in sinks in the household or gastronomy sector is very advantageous. Also an application in dishwashers, especially industrial and gastronomic dishwashers is a use of particular advantage. Furthermore, the process and also the drain sieve can be used in any type of drain in which the drain itself is to be kept free of floating particles.

In another embodiment of the invention, the guided movement is performed along the main axis of the closure part. The tubular sieve part is inserted into the outlet of a container for temporary filling with water in such a way that the main axis of the sieve part is also arranged substantially vertically. The guided movement along the main axis of the closure part therefore also takes place in the vertical direction.

In a further development of the invention, the guided movement of the closure part opens or closes an opening between the closure part and the sieve part. When the drainage sieve is open, the water in the container can flow through the opening into the drain. The sieve part retains dirt particles.

In a further embodiment of the invention, the guided movement is achieved by bringing together a tubular closure part and a tubular sieve part. The closure part and the sieve part have such similar tube diameters that the sieve part is effectively closed by bringing the two parts together, similar to a telescope.

In a further development of the invention, the closure part is held by gravity in the end position in which the drainage sieve is closed. Due to the gravitational force, no additional application of force by e.g. a user or further components is required.

In a further embodiment of the invention, the closure part is locked in the open position. The locking is done in such a way that the closure part is locked at a height with respect to the vertically arranged sieve part and thus the water in the container can flow off into the drain. The sieve part retains dirt particles.

In a further embodiment of the invention, the closure part is locked by a mandrel guided through a sieve opening of the sieve part. The mandrel is guided through one or more openings of the sieve part, the closure part rests on the mandrel due to the gravitational force. By loosening the mandrel, the closure part can be guided into the closed end position.

The objective is further solved by the drainage sieve according to claim 7. Further advantageous embodiments of the invention are set forth in the subclaims.

The drainage sieve according to the invention has a sieve part, a tubular closure part and a guide element. According to the invention, the closure part is arranged movably with respect to the sieve part. The drainage sieve is opened or closed by relative movement of the sieve part and the closure part. The relative movement of the closure part with respect to the sieve part can be a linear movement, a rotational movement (rotary movement) or a combination of linear and rotary movement. The guide guides the movement of the closure part in such a way that the drainage sieve according to the invention is reliably opened or closed.

In a further embodiment of the invention, the drainage sieve is intended to be inserted into a drain of a container for temporary filling with water. For the purposes of the invention, a container for temporary filling with water is a container which can be filled with water and has a drain connected to the container by design for emptying the water. The container can therefore be, for example, a washing basin, a shower or bath tub or a sink. Such containers usually have a fixed sieve in the drain, but the openings are so large that only large particles, e.g. cleaning utensils, are retained and do not reach the drain. However, smaller dirt particles, e.g. food scraps and hair, are not retained by the sieve of the drain and can lead to blockages of the drain.

In a further development of the invention, the sieve part forms the guide element. The closure part is therefore guided by the sieve part during the relative movement. A separate guide element is therefore not necessary.

In a further embodiment of the invention, the sieve part is designed as a tube. The diameter of the tube is dimensioned in such ways that it can be inserted into the drain of a container for temporary filling with water.

In another embodiment of the invention, the tube wall of the sieve part has sieve openings. The sieve openings retain dirt particles when the drain sieve is open.

In a further development of the invention, the tube wall of the sieve part forms the guide element. The closure part is therefore guided by the tube wall of the sieve part during the relative movement. A separate guide element is therefore not necessary.

In a further embodiment of the invention, the outer diameter of the closure part is smaller than the inner diameter of the sieve part or the outer diameter of the sieve part is smaller than the inner diameter of the closure part. The closure part can be guided in the sieve part or above the sieve part.

In a further embodiment of the invention, the tubular wall of the sieve part has a length of at least 20% of the length of the tubular closure part. According to the invention, the length of the tubular wall of the sieve part is at least 20% of the length of the tubular wall of the closure part. This dimensioning ensures that the tubular wall of the sieve part, which at the same time forms a guide element for guiding the closure part, can guide the closure part with sufficient stability and hold it in position when the drainage sieve is closed.

In a further embodiment of the invention, the guide element is suitable and intended for guiding a relative movement of the closure part to the sieve part.

In a further development of the invention, the guide element is designed in such a way that it is suitable for guiding the relative movement of the closure part to the sieve part in the axial direction of the closure. The tubular sieve part is inserted into the outlet of a container for temporary filling with water in such a way that the main axis of the sieve part is also arranged substantially vertically. The guided movement along the main axis of the closure part is therefore also in the vertical direction.

In a further embodiment of the invention, an opening between the closure part and the strainer part is closed in an end position of the relative movement. When the drainage sieve is open, the water in the container can flow through the opening into the drain. The sieve part retains dirt particles. When the drainage sieve is closed, the opening is closed and the water remains in the container.

In a further embodiment of the invention, a first seal is arranged between the closure part and the sieve part in the end position of the relative movement. The end position is defined by the first seal and is arranged in such a way that in the closed state of the drainage sieve the opening between the closure part and the sieve part is closed.

In another embodiment of the invention, the first seal is connected to the closure member or the sieve member.

In a further embodiment of the invention, a second seal is arranged on the sieve part. The second seal is arranged on an opposite side of the first seal.

In a further embodiment of the invention, the second seal is suitable and intended to be inserted into the drain of a water basin and to seal between the drain and the sieve part. Furthermore, inaccuracies of possible different dimensions of the drain and the sieve part are compensated.

In a further embodiment of the invention, the locking device locks the closure part and the sieve part relative to each other. The locking is done in such a way that the closure part is locked at a height with respect to the vertically arranged sieve part and thus the water in the container can flow off into the drain. The sieve part retains dirt particles.

In a further development of the invention, the locking device is designed as a mandrel and can be guided through one of the sieve openings of the sieve part. The mandrel is guided through one or more openings of the sieve part, the closure part rests on the mandrel due to the gravitational force. By loosening the mandrel, the closure part can be guided into the closed end position.

In an advantageous embodiment of the invention, the closure part is designed as an overflow protection. When the drainage sieve according to the invention is closed and inserted into the outlet of a water basin, the water is kept in the basin. When water is fed further into the water basin, the drainage sieve prevents overflowing from the water basin into the environment by allowing the water to pass over the closure part into the drain of the water basin.

In a further embodiment of the invention, the guide element has a length of at least half the tube length of the closure part. According to the invention, the length of the tube wall of the sieve part is at least 50% of the length of the tube wall of the closure part. This dimensioning ensures that the tube wall of the sieve part, which at the same time forms a guide element for guiding the closure part, can guide the closure part with sufficient stability and hold it in position when the drainage sieve is closed.

Examples of embodiments of the drainage sieve according to the invention and of the method according to the invention for opening and/or closing a drainage sieve are shown schematically in simplified form in the drawings and are explained in more detail in the following description.

SHOWING

FIG. 1: Drainage sieve with sieve part and closure part

FIG. 2: Cross-section of the closed drainage sieve

FIG. 3: Drainage sieve with external closing part

FIG. 4: Cross-section of the closed drainage sieve with external closing part

FIG. 5: Drainage sieve with locked closing part

FIG. 6: Open drainage sieve in a water basin

FIG. 7: Detailed view of the open drainage sieve in a drain of a water basin

FIG. 8: Detailed view of the closed drainage sieve in a drain of a water basin

FIG. 9: Detailed view of the sieve part in a drain of a water basin

FIG. 10: Sieve part with locking section with spring-loaded locking device

FIG. 11: Detailed view of the drainage sieve with spring-loaded locking device in a drain of a water basin

FIG. 12: Closure part with screw-on handle

FIG. 13: Drainage sieves with internal locking device

FIG. 14: Drainage sieve with locking seal integrated in the closure part

FIG. 15: Drainage sieve with rubber locking seal

FIG. 1 shows a view of an embodiment of the drainage sieve 100 according to the invention. The drainage sieve 100 comprises the tubular sieve part 10 and the likewise tubular closure part 20. The sieve part 10 has the tubular wall 11, which is pierced at regular intervals by sieve openings 12. A seal 13 is arranged at the upper end of the sieve part 10. The lower end of the sieve part 10 also has a seal 40 which is suitable for insertion into the drain of a water basin 300 (see FIG. 6ff). The seal 40 has a rim 41 to seal the drain 330 against penetrating water.

The closure part 20 also has a tube wall 21 which is not pierced by sieve openings. In this embodiment, the tube wall 21 of the closure part 20 has a smaller outer diameter than the inner diameter of the screen part 10. At the upper end, the closure part 20 also has a seal 22, which rests on the upper seal 13 of the sieve part 10 when the drainage sieve 100 is closed. The closure part 20 also has the locking device 50 in the form of a mandrel, which is attached to the fastening device 51 by means of a connection 52.

To close the drain 330 of a water basin 300, the drainage sieve 100 is inserted into the drain 330 of a container 300 for temporary filling with water 200 in such a way that the sieve part 10 is held by the lower seal 40 and by gravity in an end position in which the drainage sieve 100 is closed. The closure part 20 is inserted into the screen part 10 and moved downwards along the main axis of the drainage sieve 100 in such a way that the sieve openings 12 are closed by the tube wall 21 of the closure part 20. The pipe wall 11 of the sieve part 10 guides the closure part 20 during the movement. To open the drain 330 of a water basin 300, the closure part 20 is moved upwards along the main axis of the drainage sieve 100 in such a way that one or more sieve openings 12 are no longer closed by the pipe wall 21 of the closure part 20 and the water can drain through the sieve openings 12 into the drain 330.

By using the drainage sieve 100 according to the invention, not only is the actual drainage 330 of the water container 300 kept free of dirt particles, but the lower area of the sieve part 10 is also opened when the closure part 20 is opened. Bodies or dirt particles floating at the top therefore do not close this area of the drainage sieve 100 and the water can flow off unhindered. The tubular design of the sieve part 10 of the drainage sieve 100 also means that the closure part 20 can be opened without having to reach into the water. Furthermore, the arrangement of sieve openings 12 over the entire height and circumference of the tubular sieve part 10 of the drainage sieve 100 ensures that there are sufficient sieve openings 12 so that the water can flow away unhindered even if there are numerous floating particles or heavy contamination.

A detailed view of an embodiment example of a closed drainage sieve 100 is shown in FIG. 2. The drainage sieve 100 comprises the tubular sieve part 10 and the likewise tubular closure part 20. In this embodiment example, the tubular wall 21 of the closure part 20 has a smaller outer diameter than the inner diameter of the sieve part 10. The sieve part 10 has the tubular wall 11, which is pierced at regular intervals by sieve openings 12.

The lower end of the sieve part 10 has the seal 40, which is suitable to be inserted into the drain 330 of a water basin 300. The seal 40 has a rim 41 for sealing the drain against water ingress. The closure member 20 also has a pipe wall 21 which is not pierced by screen openings. In the closed state of the drain screen 100, the pipe wall 21 lies tightly against the pipe wall 11 of the screen part 10 and prevents water stored in the container 300 from draining through the sieve openings 12.

FIG. 3 shows a view of a further embodiment of the drainage sieve 100 according to the invention. The drainage sieve 100 comprises the tubular sieve part 10 and the likewise tubular closure part 20. The sieve part 10 has the tubular wall 11, which is pierced at regular intervals by sieve openings 12. The lower end of the sieve part 10 has the seal 40, which is suitable to be inserted into the drain of a water basin 300 (see FIG. 6ff). The seal 40 has a rim 41 for sealing the drain against penetrating water.

The closure part 20 also has a tube wall 21 which is not pierced by sieve openings. In this embodiment, the tube wall 21 of the closure part 20 has a larger inner diameter than the outer diameter of the sieve part 10. The length of the tube walls 11, 21 are substantially the same in this and the further embodiment examples. According to the invention, the length of the tube wall 11 of the sieve part 10 is at least 20%, preferably at least 50%, of the length of the tube wall 21 of the closure part 20. This dimensioning ensures that the tube wall 11, which at the same time forms a guide element for guiding the closure part 20, can guide the closure part 20 with sufficient stability and hold it in position when the drainage sieve 100 is closed. At the upper end, the closure part 20 has a seal 22 which rests on the upper edge of the drainage sieve part 10 when the drainage sieve 100 is closed. The closure part 20 also comprises the locking device 50 in the form of a mandrel, which is attached to the fastening device 51 by means of a connection 52.

To close the drain of a water basin 300, the drainage sieve 100 is inserted 200 into the drain 330 of a container 300 for temporary filling with water in such a way that the sieve part 10 is held by the lower seal 40 and by gravity in an end position in which the drainage sieve 100 is closed. The closure member 20 is placed over the sieve part 10 and moved downwardly along the major axis of the drainage sieve 100 such that the sieve openings 12 are closed by the tubular wall 21 of the closure member 20. The pipe wall 11 of the sieve part 10 guides the closure part 20 during the movement.

To open the drain of a water basin 300, the closure member 20 is moved upwardly along the major axis of the drainage sieve 100 such that one or more sieve openings 12 are no longer closed by the tubular wall 21 of the closure member 20 and the water can drain through the sieve openings 12 into the drain 330.

A detailed view of an embodiment example of a closed drainage sieve 100 is shown in FIG. 4. The drainage sieve 100 comprises the tubular screen part 10 and the likewise tubular closure part 20. In this embodiment example, the tubular wall 21 of the closure part 20 has a larger inner diameter than the outer diameter of the sieve part 10. The sieve part 10 has the tubular wall 11, which is pierced at regular intervals by sieve openings 12. The lower end of the screen part 10 has the seal 40, which is suitable to be inserted into the drain of a water basin 300. The seal 40 has a rim 41 for sealing the drain against water ingress. The closure member 20 also has a pipe wall 21 which is not pierced by sieve openings. In the closed state of the drainage sieve 100, the tube wall 21 lies tightly against the tube wall 11 of the sieve part 10 and prevents water stored in the container 300 from draining through the sieve openings 12.

FIG. 5 shows a view of an embodiment of the composite drainage sieve 100 in the open state. The drainage sieve 100 comprises the tubular sieve part 10 and the likewise tubular closure part 20. The sieve part 10 has the tubular wall 11, which is pierced at regular intervals by sieve openings 12. The lower end of the sieve part 10 has the seal 40, which is suitable to be inserted into the drain of a water basin 300 (see FIG. 6ff). The seal 40 has a rim 41 for sealing the drain against penetrating water.

The closure part 20 also has a tube wall 21 which is not pierced by sieve openings. In this embodiment example, the tube wall 21 of the closure part 20 has a larger inner diameter than the outer diameter of the sieve part 10. At the upper end, the closure part 20 has a seal 22 which rests on the upper edge of the screen part 10 when the drainage sieve 100 is closed. The closure part 20 also has the locking device 50 in the form of a mandrel, which is attached to the fastening device 51 by means of a connection 52.

By means of the locking device 50, the drainage sieve 100 is held in the open position. For this purpose, the locking device 50 is guided through two opposite sieve openings 12 of the pipe wall 11 of the sieve part 10. The two sieve openings 12 through which the locking device 50 is guided should, but do not necessarily have to, be arranged opposite each other at the same height of the sieve part 10. The locking part 20 is placed over the sieve part 10 and moved downwards along the main axis of the drainage sieve 100. The closure part 20 is held in an open position by its lower edge resting on the locking device 50, the water can drain through the sieve openings 12 into the drain 330. At the same time, coarse dirt particles are retained by the sieve part 10 and do not enter the drain 330.

A view of an embodiment of the assembled drainage sieve 100 in an open state, inserted into the drain 330 of a water basin 300, is shown in FIG. 6. The water basin 300 comprises the drain 330, which is connected to the drain pipe 320. The drain 330 has the drainage sieve 310 installed therein. The drainage sieve 100 has the tubular sieve part 10 and the closure part 20, which is also tubular. The sieve part 10 has the tubular wall 11, which is pierced at regular intervals by sieve openings 12. The lower end of the sieve part 10 has the seal 40, which is suitable to be inserted into the drain 330 of a water basin 300. The seal 40 has a rim 41 for sealing the drain 330 against water penetration.

The closure part 20 also has a tube wall 21 which is not pierced by sieve openings. In this embodiment example, the tube wall 21 of the closure part 20 has a larger inner diameter than the outer diameter of the sieve part 10. At the upper end, the closure part 20 has a seal 22 which rests on the upper edge of the sieve part 10 when the drainage sieve 100 is closed. The closure part 20 also has the locking device 50 in the form of a mandrel, which is attached to the fastening device 51 by means of a connection 52.

The closure part 20 is held in an open position by its lower edge resting on the locking device 50, the water can drain through the sieve openings 12 into the drain 330. By means of the movement of the closure part 20 along the vertical axis of the sieve part 10, the drainage sieve 100 is closed or opened.

FIGS. 7, 8 and 9 show detailed views of an embodiment of the composite drainage sieve 100 in an open state with the closure part 20 locked in place, in a closed state and without the closure part 20, each inserted into the drain 330 of a water basin 300. The water basin 300 has the drain 330 connected to the drain pipe 320. The drain 330 has the drainage sieve 310 installed therein. The drainage sieve 100 comprises the tubular sieve part 10 and the closure part 20, which is also tubular. The sieve part 10 has the tubular wall 11, which is pierced at regular intervals by sieve openings 12. The lower end of the sieve part 10 has the seal 40, which is suitable to be inserted into the drain 330 of a water basin 300. The seal 40 has a rim 41 for sealing the drain 330 against water penetration.

The closure part 20 also has a tube wall 21 which is not pierced by screen openings. In this embodiment, the tubular wall 21 of the closure part 20 has a larger inner diameter than the outer diameter of the sieve part 10. The closure part 20 also has the locking device 50 in the form of a mandrel, which is attached to the fastening device 51 by means of a connection 52. The closure part 20 is held in an open position by resting its lower edge on the locking device 50, and the water can drain through the screen openings 12 into the drain 330. By means of the movement of the closure part 20 along the vertical axis of the sieve part 10, the drainage sieve 100 is closed or opened.

In FIG. 8 the drainage sieve 100 is shown in a closed state. The closure part 20 is closed by its lower edge resting on the edge 41 of the seal 40. Thus, no water can drain from the water basin 300. FIG. 9 shows a detailed view of the sieve part 10 without the closure part 20, inserted into the drain 330 of a water basin 300. The lower end of the sieve part 10 has the seal 40, which is suitable to be inserted into the drain 330 of a water basin 300. The seal 40 has a rim 41 for sealing the drain 330 against water ingress. The water can drain through the sieve openings 12 into the drain 330. At the same time, coarse dirt particles are retained by the sieve part 10 and do not enter the drain 330.

FIGS. 10 and 11 show views of a further embodiment of the drainage sieve 100 according to the invention. The drainage sieve 100 comprises the tubular sieve part 10 (FIG. 10a) and the likewise tubular closure part 20. The sieve part 10 has the tubular wall 11, which is pierced at regular intervals by sieve openings 12. At the upper end, a seal 13 is arranged on the sieve part 10. The lower end of the sieve part 10 also has a seal 40 adapted to be inserted into the drain of a water basin 300. The seal 40 is designed to taper downwards inside the tubular screen part 10 (FIG. 10b) and also has the rim 41 for sealing the drain 330 against water penetrating from above.

The closure part 20 (FIG. 10c) also has a tube wall 21 which is not pierced by sieve openings. In this embodiment, the tube wall 21 of the closure part 20 again has a smaller outer diameter than the inner diameter of the sieve part 10. The lower end of the closure part 20 has the tapered seal 22, which is dimensioned in such a way that the seal 22 engages in the seal 40 of the sieve part 10 in the closed state. At the head portion 23, the closure part 20 also has a seal that rests on the upper seal 13 of the sieve part 10 when the drainage sieve 100 is closed. The closure part 20 further comprises the locking device 50, which is arranged at the head part 23 of the closure part 20. The locking device 50 comprises two preloaded leaf springs 53, each comprising a latching element 54.

The embodiment example (see FIG. 10) of the assembled drainage sieve 100 in an open position, inserted into the drain 330 of a water basin 300, is shown in FIG. 11. The locking elements 54 of the locking device 50 engage opposite sieve openings 12 of the sieve part 10, holding the drainage sieve 100 in an open position. In the closed position of the drainage sieve 100, the seal on the head portion 23 of the closure member 20 engages the seal 40 of the sieve part 10 and prevents water from draining from the water basin 300.

A further example of an embodiment of a closure part 20 is shown in FIG. 12. The tube wall 21 of the closure part 20 has the tapered seal 22 at the lower end of the closure part 20, which is dimensioned in such a way that the seal 22 engages in the seal 40 of the sieve part 10 in the closed state. At the upper end, the closure part 20 also has a seal 22 which, in the closed state of the drainage sieve 100, rests on the upper seal 13 of the sieve part 10 (FIG. 12a). The top part 23 is designed as a ring with internal thread 25 and has the handle 23 for easier handling (FIG. 12b). The tube wall 21 has the corresponding external thread 24 (FIG. 12c), with which the head part 23 is screwed onto the tube wall 21 before using the drainage sieve 100 or can be unscrewed for easier cleaning.

The closure part 20 also has the locking device 50, which is arranged on the head part 23. The locking device 50 has two pre-tensioned leaf springs 53, each of which has a latching element 54. As in the previous embodiment (see FIG. 11), the latching elements 54 latch into opposing sieve openings 12 of the sieve part 10 and hold the drainage sieve 100 in either an open or closed position.

FIG. 13 shows a further embodiment of the drainage sieve 100 according to the invention, in which the locking device 50 is arranged between the closure part 20 and the sieve part 10. The drainage sieve 100 corresponds to that shown in FIG. 10, but in this embodiment the locking device 50 is arranged on the head part 23 in such a way that the leaf springs 53 run along the tube wall 21, contact it and are tensioned outwards at the lower end. The lower ends in turn have the latching elements 54. The latching elements 54 of the locking device 50 latch into opposing sieve openings 12 of the sieve part 10 and thus hold the drainage sieve 100 in an open or closed position.

A further embodiment of a drainage sieve 100 according to the invention is shown in FIG. 14. The drainage sieve 100 comprises the tubular sieve part 10 and the likewise tubular closure part 20. The sieve part 10 has the tubular wall 11, which is pierced at regular intervals by sieve openings 12. A seal 13 is arranged at the upper end of the sieve part 10. The lower end of the sieve part 10 also has a seal 40 suitable for being inserted into the drain of a water basin 300.

The closure part 20 also has a tube wall 21 which is not pierced by sieve openings. In this embodiment example, the tube wall 21 of the closure part 20 has a smaller outer diameter than the inner diameter of the sieve part 10. At the upper end, the closure part 20 also has a seal on the head part 23, which rests on the upper seal 13 of the sieve part 10 when the drainage sieve 100 is closed. The head portion 23 has the handle 55 for ease of handling. The head portion may also be formed as a seal to seal between the sieve and the closure portion. At the lower end, the tube wall 21 of the closure part 20 has a locking lug 56 running around the circumference of the tube wall 21 (FIG. 14a).

The assembled drainage sieve 100 in the open position is shown in FIG. 14b. The latching lug 56 exerts such pressure on the tube wall 11 of the sieve part 10 that the closure part 20 is held in an open position. By exerting a force on the closure part 20 along its vertical axis, the drainage sieve 100 is closed or opened.

A variant of the previous embodiment (see FIG. 14) of a drainage sieve 100 according to the invention is shown in FIG. 15. The drainage sieve 100 comprises the tubular sieve part 10 and the likewise tubular closure part 20. The sieve part 10 has the tubular wall 11, which is pierced at regular intervals by sieve openings 12. A seal 13 is arranged at the upper end of the sieve part 10. The lower end of the sieve part 10 also has a seal 40 suitable for being inserted into the drain of a water basin 300.

The closure part 20 also has a tube wall 21 which is not pierced by sieve openings. In this embodiment, the tube wall 21 of the closure part 20 has a smaller outer diameter than the inner diameter of the sieve part 10. At the upper end, the closure part 20 has a head part 23 as a seal, which rests on the upper seal 13 of the sieve part 10 when the drainage sieve 100 is closed. The head part 23 has the handle 55 for easier handling. At the lower end, the tube wall 21 of the closure part 20 has a locking groove 57 running around the circumference of the tube wall 21 for receiving the locking element 58 (FIG. 15a). The locking element 58 is preferably made of an elastic but at the same time water-resistant material, e.g. a rubber. However, it is also possible to design the latching element 58 as a metallic clamping ring.

In the assembled state of the drainage sieve 100, the latching element 58 also exerts such pressure on the tube wall 11 of the sieve part 10 that the closure part 20 is held in an open position. By exerting a force on the closure part 20 along its vertical axis, the drainage sieve 100 is closed or opened.

REFERENCE LIST

• • 100 Drainage sieve
  • 10 Sieve part
  • 11 Tube wall
  • 12 Sieve opening
  • 13 first seal
  • 20 Closure part
  • 21 Tube wall
  • 22 First seal of the closure part
  • 23 Head part
  • 24 External thread
  • 25 Internal thread
  • 40 Second seal of the sieve part
  • 41 Rim
  • 50 Locking device
  • 51 Fastening device
  • 52 Connection
  • 53 Leaf spring
  • 54 Latching element
  • 55 Handle
  • 56 Locking lug
  • 57 Locking groove
  • 58 Locking element
  • 300 Sink
  • 310 Sieve
  • 320 Drain

Claims

1. Method for opening and/or closing a drainage sieve (100) with the method steps: Inserting the a drainage sieve (100) into a drain (330) of a water basin (300) or the sieve (310) of a of a water basin (300), wherein the drainage sieve (100) comprises a closure part (20), a sieve part (10) and a guideCarrying out a movement of the closure part (20) guided by the guide of the drainage sieve (100) to open or close the drainage sieve (100).

2. Method for opening and/or closing a drainage sieve (100) according to claim 1characterised in thatthe guided movement of the closure part (20) opens or closes an opening between the closure part (20) and the sieve part (10).

3. Method for opening and/or closing a drainage sieve (100) according to claim 1characterised in thatthe guided movement is achieved by bringing together a tubular closure part (20) and a tubular sieve part (10).

4. Method of opening and/or closing a drainage sieve (100) according to claim 1characterised in thatthe closure part (20) is held by gravity in the end position in which the drainage sieve (100) is closed.

5. Method of opening and/or closing a drainage sieve (100) according to claim 1characterised in thatthe closure part (20) is held by gravity in the end position in which the drainage sieve (100) is closed.

6. Method of opening and/or closing a drainage sieve (100) according to claim 1characterised in thatonly a part of the sieve openings (12) is opened or closed by the guided movement of the closure part (20).

7. Drainage sieve (100) comprising: a sieve part (10)a tubular closure part (20)a guide elementwherein the tubular closure part (20) is movably arranged with respect to the sieve part (10).

8. Drainage sieve (100) according to claim 7characterised in thatthe drainage sieve (100) comprises a first seal (13) intended to be inserted into a drain (330) of a water basin (300),wherein, when the drain sieve (100) is properly inserted into the drain (330) of a water basin (300), sieve openings (12) are arranged above the first seal (13) of the sieve part (10).

9. Drainage sieve (100) according to claim 7characterised in thatthe sieve part (10) forms the guide element.

10. Drainage sieve (100) according to claim 7characterised in thatthe sieve part (10) is designed as a tube,wherein sieve openings (12) are arranged on the tube wall (11) of the sieve part (10),wherein the tube wall (11) of the sieve part (10) forms the guide element, and whrerin the outer diameter of the closure part (20) is smaller than the inner diameter of the sieve part (10) or the outer diameter of the sieve part (10) is smaller than the inner diameter of the closure part (20),wherein the closure part (20) can be guided in the sieve part (10) or above the sieve part (10).

11. (canceled)

12. Drainage sieve (100) according to claim 7characterised in thatthe guide element is suitable and intended for guiding a relative movement of the closure part (20) to the sieve part (10),wherein the guide element is designed such that it is suitable for guiding the relative movement of the closure part (20) to the sieve part (10) in the axial direction of the closure part (20),wherein in an end position of the relative movement, an opening (12) between the closure part (20) and the sieve part (10) is closed,wherein in the end position of the relative movement a first seal (13) is arranged between the closure part (20) and the sieve part (10), andwherein the first seal (13) is connected to the closure part (20) or the sieve part (10).

13. (canceled)

14. Drainage sieve (100) according to claim 7characterised in thata second seal (40) is arranged on the sieve part (10),wherein the second seal (40) is suitable and intended to be inserted into the drain (330) of a water basin (300) and to seal between the drain (330) and the sieve part (10).

15. Drainage sieve (100) according to claim 7characterised in thatthe drainage sieve (100) has a locking device (50),wherein the locking device (50) locks the closure part (20) and the sieve part (10) to each other, andwherein the locking device (50) comprises a locking element which is partially insertable into one of the sieve openings (12) of the sieve part (10)wherein the locking element is designed as a mandrel or a ball, andwhrein the locking element is spring-mounted on the closure part (20).

16. (canceled)

17. (canceled)

18. Drainage sieve (100) according to claim 7characterised in thatthe guide element has a length of at least half the tube length of the closure part (20).

19. Drainage sieve (100) according to claim 7characterised in thatthe closure part (20) has a locking seal (56).

20. Drainage sieve (100) according to claim 19 characterised in that the locking seal (56) is arranged circumferentially around the tube wall (21) ofthe closure part (20).

21. Drainage sieve (100) according to claim 19characterised in thatthe outer circumference of the locking seal (56) is greater than or equal to the inner circumference of the tube wall (11) of the sieve part (10) and the outer circumference of the tube wall (21) of the closure part (20) is smaller than the inner circumference of the tube wall (11) of the sieve part (10), orthe inner circumference of the locking seal (56) is smaller than the outer circumference of the tube wall (11) of the sieve part and the inner circumference of the tube wall (21) of the closure part (20) is larger than the outer circumference of the tube wall (11) of the sieve part (10).

22. Drainage sieve (100) according to claim 19characterised in thatthe the locking seal (56) by changing the local circumference of the wall (21) of the closure part (20), orthe locking seal (56) is formed as a rubber seal (58) which is mounted in a groove (57) of the closure part (20).

23. Drainage sieve (100) according to claim 19characterised in thatthe closure part (20) can be locked to the sieve part (10) by means of the locking seal (56).

24. (canceled)

25. (canceled)