Inlet pipe
By introducing a water guiding structure into the toilet inlet pipe, including a stop section and a residual water channel, the problems of odor and noise caused by stagnant water residue are solved, achieving complete outflow of flushing water and elimination of noise.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-26
- Publication Date
- 2026-04-10
Smart Images
Figure CN121827440A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The invention relates to a water guiding structure for letting water into a sanitary article, in particular for a toilet, according to claim 1, an inlet pipe with the water guiding structure according to claim 8, an arrangement according to claim 14 and a sanitary article according to claim 17. BACKGROUND
[0002] From the prior art it is known that in a toilet an inlet pipe is provided in front of the inlet area of the toilet. The inlet pipe is usually connected with a flushing bend, which itself is water guidingly connected with a flushing water tank. SUMMARY
[0003] Starting from this prior art, it is an object of the invention to propose a water guiding structure for a sanitary article, in particular for a toilet, which overcomes the disadvantages of the prior art. In particular, a water guiding structure is proposed which avoids odor and noise emissions.
[0004] This object and others are achieved by a water guiding structure for letting water into a sanitary article, in particular for a toilet, according to claim 1. Thus, the water guiding structure comprises an inner wall which laterally delimits a pipe interior space which extends along a pipe line, wherein the pipe interior space is accessible through a pipe inlet and a pipe outlet. The water guiding structure further comprises a receiving section attached to the pipe inlet for receiving a flushing pipe, which extends into the receiving section, and a stop section attached to the receiving section, which has at least one stop face which extends into the pipe interior space, wherein the flushing pipe can be stopped at the stop face. The water guiding structure further comprises a residual water passage which extends through the stop section such that residual water can flow out of the stop section in the direction of the pipe outlet.
[0005] By the residual water passage it is achieved that no flushing water remains in the area in front of the stop section, because the residual water passage penetrates the stop section. This means that no standing water remains in the pipe section in front of the stop section. Thereby, unpleasant odors due to standing water are avoided. If the water guiding structure is used in combination with an odor suction arrangement, in which air from the toilet is sucked through the water guiding structure, a gurgling noise can be avoided.
[0006] The residual water passage has the further advantage that all flushing water from the flushing pipe can flow out of the water guiding structure. This is the case even if the flushing pipe is not completely pushed to the stop face or if the flushing pipe has a larger inner diameter than the stop section.
[0007] The water guiding structure can be used in various ways. For example, the water guiding structure can be part of an inlet pipe. Alternatively, the water guiding structure can be part of a water guiding passage of a sanitary article.
[0008] The flushing pipe can abut against the at least one stop face or can also be positioned spaced apart therefrom. The stop section serves primarily to prevent the flushing pipe from being inserted too deeply into the water guide structure.
[0009] The pipe cross section in the region of the stop face is smaller than the pipe cross section in the accommodation section.
[0010] The pipe lines form the central axis of the pipe interior space, respectively. The pipe lines can extend in straight sections and in curved sections.
[0011] Preferably, the residual water channel forms the lowest point in the pipe interior space, viewed in the installed position. Preferably, the residual water channel is located at the lowest point in the pipe interior space, viewed in the installed position.
[0012] Preferably, the stop faces are located to the right of the residual water channel and to the left of the residual water channel, respectively, viewed in the flow direction from the pipe inlet to the pipe outlet. The stop faces are preferably located above the residual water channel, viewed in the installed position.
[0013] Preferably, the residual water channel has a base face from which two side faces extend, which are positioned spaced apart from one another. A U-shaped channel is formed. The U-shaped channel extends through the stop section.
[0014] In one variant, the base face extends substantially parallel to the pipe line over the length of the stop section. In another variant, the base face extends substantially angularly with respect to the pipe line over the length of the stop section, wherein the distance between the pipe line and the base face increases with increasing distance from the pipe inlet. In a third variant, the base face extends, viewed over the length of the stop section, in part parallel to the pipe line and in part angularly inclined with respect to the pipe line.
[0015] Preferably, the water guide structure has a turning section after the stop section, viewed from the pipe inlet to the pipe outlet. Preferably, the turning section extends downward and / or laterally with respect to the accommodation section, viewed in the installed position. Preferably, the residual water channel extends into the turning section.
[0016] Preferably, the turning section has a smaller cross-sectional area than the cross-sectional area of the accommodation section.
[0017] Preferably, an intermediate section is attached to the stop section. The intermediate section preferably has the same cross section and / or cross-sectional shape as the accommodation section. The intermediate section can also have a different cross section or cross-sectional shape. In further embodiments, the intermediate section can also be omitted. The turning section is then directly attached to the stop section.
[0018] The inlet pipe according to claim 8 comprises a water guide structure according to the above description, wherein the inner wall is provided by the pipe wall. The inner wall thus forms the wall of the pipe wall facing the interior space.
[0019] Preferably, the stop section is provided by two lateral recesses at the inlet pipe. The recesses are provided in the area of the stop section. The recesses project from the outside into the interior space of the pipe, so that a depression is respectively produced on the outside of the interior space of the pipe and a bulge is produced on the inside of the interior space of the pipe. Here, the stop face is located at the bulge.
[0020] Preferably, the pipe line is configured straight in the area of the recesses. The recesses are configured symmetrically with respect to a middle plane which extends through the pipe line and in the installed position is in the vertical direction.
[0021] Preferably, the inlet pipe is also configured symmetrically with respect to a plane which extends in the horizontal direction over the length of the residual water channel. This means that the inlet pipe has two residual water channels. In the installed state, one of the two residual water channels is always positioned so that water can flow through it, while the other of the two residual water channels is located above the residual water channel mentioned above. The symmetrical configuration allows for left and right installation.
[0022] Preferably, the inlet pipe also comprises at least one holding section. The holding section is capable of being mechanically connected with a pipe holder. The holding section is preferably located behind the stop section mentioned above, in particular behind the middle section mentioned above, viewed in the flow direction of the flushing water. Preferably, two holding sections 15 are arranged opposite one another with respect to the interior space of the pipe.
[0023] Preferably, the holding section is clamped by the pipe holder.
[0024] Preferably, the holding section has a conical or elliptical extruded face which extends partially around the pipe line. Preferably, the pipe holder has at least one bearing face which is configured correspondingly to the conical face in terms of its shape. The conical face also has the advantage that the inlet pipe is easily demoulded when manufactured.
[0025] Preferably, the receiving section has a tapered introduction region in the inlet region. A bearing region having a constant diameter is attached to the introduction region.
[0026] The stop section mentioned above is preferably attached to the bearing region.
[0027] The device comprises an inlet pipe according to the description above and a fitting bracket which has a bearing point for fixedly bearing the inlet pipe at the fitting bracket, wherein the fitting bracket has recesses at the bearing point through which the residual water channel extends.
[0028] The fitting bracket is preferably configured as a profile. The profile has at least a lower web, a middle web which extends from the lower web and an upper web which extends from the middle web. The middle web and the upper web are provided with the recesses mentioned above.
[0029] Preferably, the device further comprises a sanitary item, in particular a toilet bowl, with a water guiding channel having a channel inlet, and a flushing pipe. The flushing pipe extends with a support section into the receiving section, and the pipe outlet of the inlet pipe is located at the channel inlet of the water guiding channel.
[0030] The flushing pipe has a seal on the outside with which a water-tight connection between the flushing pipe and the inlet pipe can be established.
[0031] Preferably, the device further comprises a pipe holder, wherein with the pipe holder the inlet pipe is fixedly connected with the assembly bracket.
[0032] In one variant, the assembly bracket has at least one locking opening, and the pipe holder has at least one locking tab which is locked in the locking opening. In another variant, the assembly bracket has at least one locking tab, and the pipe holder has at least one locking opening, wherein the locking tab is locked in the locking opening. In yet another variant, the pipe holder is integrally formed at the assembly bracket.
[0033] Preferably, the assembly bracket has two opposite free ends which engage in support openings at the sanitary item. Preferably, two support sites are provided adjacent to the free ends to accommodate a fixing unit at the assembly bracket.
[0034] The sanitary item according to claim 17 comprises a water guiding channel, wherein the inside of the water guiding channel has a water guiding structure according to the above description. Preferably, the water guiding structure is an integral part of the sanitary item. The sanitary item is preferably a ceramic sanitary item.
[0035] Further embodiments are given in the dependent claims. BRIEF DESCRIPTION OF DRAWINGS
[0036] A preferred embodiment of the present application will be described below with reference to the drawings, which are for illustrative purposes only and should not be construed as limiting. In the drawings:
[0037] Figure 1 A perspective view of an embodiment of an inlet pipe according to the present application is shown from below, the inlet pipe having a water guiding structure according to the present application;
[0038] Figure 2 A top view of the inlet pipe shown; Figure 1 A top view of the inlet pipe shown;
[0039] Figure 3 A cross-sectional view through the inlet pipe shown in the above figures is shown;
[0040] Figure 4 A cross-sectional view through the device having the inlet pipe and the assembly bracket shown in the above figures is shown; and
[0041] Figure 5 It shows the combination of hygiene products. Figure 4 A cross-sectional view of the device shown. Detailed Implementation
[0042] The accompanying drawings show the water guiding structure according to the invention at the inlet pipe. However, the water guiding structure can also be implemented directly in the water guiding channel of the sanitary product. The water guiding structure is used to direct flushing water into the sanitary product 29. The sanitary product is preferably a toilet.
[0043] Reference Figures 1 to 3 A particularly preferred embodiment of the water guiding structure at the inlet pipe 1 is described. The description of the water guiding structure also applies to its arrangement in the water guiding channels of sanitary products.
[0044] The water guiding structure (here, inlet pipe 1) includes: an inner wall 2 that laterally defines an internal pipe space 3 extending along pipe line R, wherein the internal pipe space 3 is accessible through pipe inlet 4 and pipe outlet 5; a receiving section 6 attached to pipe inlet 4 for accommodating flushing pipe 7; and a stop section 8 attached to receiving section 6, the stop section having a smaller cross-sectional area than receiving section 6. Stop section 8 has at least one stop surface 37 extending into the internal pipe space 3.
[0045] The inner wall 2 is part of the pipe wall 38 that provides or surrounds the internal space 3 of the pipe.
[0046] The water guiding structure (here, inlet pipe 1) also includes a residual water channel 9 that extends through the stop section 8, allowing residual water to flow through the stop section 8 towards the pipe outlet 5. Therefore, the residual water channel 9 penetrates the stop section 8, preventing the stop section 8 from clogging the flushing water in the area of the residual water channel 9. The residual water channel 9 particularly... Figure 3 As can be seen, the residual water channel 9 is attached to the inner side 27 of the inner wall 2 in the region of the stop section 8. From Figure 4 As can be seen from the installation position, the residual water channel 9 is located at the lowest point of the inlet pipe 1. From the installation position, the residual water channel 9 forms the lowest point within the internal space 3 of the pipe. The residual water channel 9 is located at the lowest point within the internal space of the pipe.
[0047] Figure 5 The installation of the inlet pipe 1 is shown. The flushing pipe 7 extends into the receiving section 6. The end of the flushing pipe 7 can be stopped at at least one stop surface 37 of the stop section 8, or located between the stop section 8 and the pipe inlet 4. Regardless of the relative position between the flushing pipe 7 and the stop section 8, flushing water can flow from the receiving section 6 through the stop section 8 via the arrangement of the residual water channel 9. Here, as... Figure 3As shown, the stop face 37 extends into the tube interior space 3 at an angle inclined at an angle to the line R. The angle is preferably between 30° and 60°. The stop face 37 can also extend at a right angle to the line R.
[0048] The receiving section 6 has a tapered introduction region 18 in the inlet region, to which a support region 19 with constant diameter is attached.
[0049] A seal 28 is provided between the inside of the receiving section 6 and the outside of the flush pipe 7.
[0050] The inlet pipe 1 extends with its tube outlet 5 via the channel inlet 25 into the water channel 24. In the case of a toilet, the water channel 24 opens into the bowl space, wherein flush water can be conveyed through the water channel 24 to flush the bowl space.
[0051] Reference is now made to Figures 1 to 4 further preferred features of the inlet pipe 1 are explained in more detail.
[0052] The residual water channel 9 has a bottom face 10. From this bottom face 10, two side faces 11 extend. The side faces 11 laterally delimit the residual water channel 9, the bottom face 10 forming a lower base of the residual water channel 9. The side faces 11 and the bottom face 10 are part of the tube wall 38 and likewise delimit the tube interior space 3. The residual water channel 9 is configured to be open to the tube interior space 3. The stop face 37 is located on the left and right of the residual water channel 9, respectively, and above the residual water channel 9 in the installed position.
[0053] In the embodiment shown, the bottom face 10 extends substantially parallel to the line R over the entire length L of the stop section 8. This is visible in Figure 3 In the installed position, the line R and the bottom face are preferably located in the horizontal or have a slight slope, so that flush water can flow out.
[0054] In other variants, the bottom face 10 can also be oriented at an angle inclined to the line R.
[0055] In the embodiment shown, an intermediate section 13 is attached to the stop section 8. The intermediate section 13 preferably has the same diameter and cross-sectional shape as the receiving section 6. The residual water channel 9 preferably extends through the intermediate section 13.
[0056] Preferably, the inlet tube has a turning section 12 after the stop section 8, viewed from the tube inlet 4 to the tube outlet 5. Here, the turning section 12 is attached to an intermediate section 13. It is also conceivable, however, that the turning section 12 is attached directly to the stop section 8. The residual water channel 9 extends into the turning section 12. Here, the turning section 12 is configured such that it extends downward and laterally with respect to the housing section 6, viewed in the installed position. In other words, viewed with respect to the housing section 6, the flushing water flows laterally and downward from the housing section 6.
[0057] From Figures 1 to 4 The configuration of the stop section 8 is visible. The stop section 8 is provided by two lateral recesses 14 at the inlet tube 1. The recesses 14 are provided by a deformation of the tube wall 38. The recesses 14 project into the tube interior 3 from the outside. By this projection, a depression 30 is respectively produced on the outside of the tube interior 3, and a bulge 31 is produced on the inside of the tube interior 3. In an alternative configuration, it is also conceivable that the stop section is provided by a rib.
[0058] The tube line R is configured linearly in the region of the recesses 14. The recesses 14 are configured symmetrically with respect to a middle plane E which extends through the tube line R and is in the vertical direction V in the installed position.
[0059] The inlet tube 1 also has at least one holding section 15 which can be mechanically connected with a tube holder 16. This is shown in Figure 4 Here, two holding sections 15 are arranged opposite one another with respect to the tube interior.
[0060] Each of the holding sections 15 here has a conical or elliptical extruded face 17 which extends partially around the tube line R. The tube holder 16 has two correspondingly configured bearing faces 32 which correspondingly accommodate the conical faces 17 to support the inlet tube 1.
[0061] Figure 4 and Figure 5 The above-described inlet tube 1 is shown in combination with an apparatus. The apparatus comprises the inlet tube 1 according to the above description and a fitting bracket 20 which has a bearing site 21 for fixedly bearing the inlet tube 1 at the fitting bracket 20. The fitting bracket 20 has a recess 22 at the bearing site 21, through which the residual water channel 9 extends.
[0062] In the shown embodiment, a tube holder 27 is provided for the connection between the fitting bracket 20 and the inlet tube 1. With the tube holder 27, the inlet tube 1 is fixedly connected with the fitting bracket 20. Here, the tube holder 27 has two clamping arms 36 which engage to the two holding sections 15.
[0063] The assembly bracket 20 is here configured as a profile. The profile has at least a lower web 33, a middle web 34 extending from the lower web 33 and an upper web 35 extending from the middle web 34. The middle web 34 and the upper web 35 are provided with the recess 22. The assembly bracket can also be configured in other ways.
[0064] The device preferably also comprises a sanitary item 23, in particular a toilet. The sanitary item comprises a water guide channel 24 having a channel inlet 25. Furthermore, the device preferably comprises a flushing pipe 7, wherein the flushing pipe 7 extends with a bearing section 26 into the accommodation section 6 and wherein the pipe outlet 5 of the inlet pipe 1 is located in the channel inlet 25 of the water guide channel 24.
[0065] List of reference signs
[0066] 1 inlet pipe
[0067] 2 inner wall
[0068] 3 pipe interior space
[0069] 4 pipe inlet
[0070] 5 pipe outlet
[0071] 6 accommodation section
[0072] 7 flushing pipe
[0073] 8 stop section
[0074] 9 residual water channel
[0075] 10 bottom face
[0076] 11 side face
[0077] 12 turning section
[0078] 13 middle section
[0079] 14 recess
[0080] 15 holding section
[0081] 16 pipe holder
[0082] 17 conical face
[0083] 18 introduction region
[0084] 19 bearing region
[0085] 20 assembly bracket
[0086] 21 bearing point
[0087] 22 recess
[0088] 23 sanitary item
[0089] 24 water-conducting channel
[0090] 25 channel inlet
[0091] 26 bearing section
[0092] 27 inner side
[0093] 28 seal
[0094] 29 sanitary article
[0095] 30 recess
[0096] 31 elevation
[0097] 32 bearing surface
[0098] 33 lower web
[0099] 34 intermediate web
[0100] 35 upper web
[0101] 36 clamping arm
[0102] 37 stop surface
[0103] 38 tube wall
[0104] L length
[0105] R line
[0106] E intermediate plane
[0107] V vertical direction
Claims
1. A water guide for the introduction of water into a sanitary article, in particular for a toilet, comprising an inner wall (2) laterally delimiting a tube interior space (3) extending along a tube line (R), wherein the tube interior space (3) is accessible by means of a tube inlet (4) and a tube outlet (5), an accommodation section (6) attached to the tube inlet (4) for accommodating a flushing tube (7), the flushing tube (7) extending into the accommodation section (6), a stop section (8) attached to the accommodation section (6), the stop section having at least one stop face (37) extending into the tube interior space (3), wherein the flushing tube (7) can be stopped at a stop of the stop section (8), and a residual water channel (9) extending through the stop section (8) such that residual water can flow through the stop section (8) in the direction of the tube outlet (5).
2. The water guiding structure according to claim 1, characterized in that The residual water channel (9) forms or lies in the tube interior space (3) as viewed in the installed position at a lowest point.
3. Water guiding structure according to one of the preceding claims, characterized in that The residual water channel (9) has a base face (10) from which two side faces (11) extend, which are positioned at a distance from one another.
4. The water guiding structure according to claim 3, characterized in that The base face (10) extends substantially parallel to the tube line (R) over the length (L) of the stop section (8) and / or the base face (10) extends substantially angularly with respect to the tube line (R) over the length (L) of the stop section (8), wherein the distance between the tube line (R) and the base face (10) increases with increasing distance from the tube inlet (4).
5. Water guiding structure according to one of the preceding claims, characterized in that The water guide has, as viewed from the tube inlet (4) to the tube outlet (5), a turning section (12) after the stop section, wherein the turning section (12) extends downward and / or laterally with respect to the accommodation section (6) as viewed in the installed position, and wherein the residual water channel (9) extends into the turning section (12).
6. The water guiding structure according to claim 5, characterized in that The turning section (12) has a smaller cross-sectional area than the accommodation section (6).
7. Water guiding structure according to one of the preceding claims, characterized in that An intermediate section (13) is attached to the stop section (8), which preferably has the same cross-sectional area and / or cross-sectional shape as the accommodation section (6).
8. An inlet tube (1) comprising a water guide according to one of the preceding claims, wherein the inner wall (2) is provided by a tube wall (38).
9. Inlet pipe (1) according to claim 8, characterized in that The stop section (8) is provided by two lateral recesses (14) at the inlet tube (1), wherein the recesses (14) extend from the outside into the tube interior space (3) such that a depression (30) is respectively produced on the outside of the tube interior space (3) and a bulge (31) is produced on the inside of the tube interior space (3).
10. Inlet pipe (1) according to claim 9, characterized in that The tube line (R) is configured as a straight line in the region of the recesses (14), wherein the recesses (14) are configured symmetrically with respect to a middle plane (E) extending through the tube line (R) and lying in the vertical direction (V) in the installed position.
11. Inlet pipe (1) according to one of claims 8 to 10, characterized in that The inlet pipe further has at least one holding section (15) which can be mechanically connected with a pipe holder (16), wherein preferably two holding sections (15) are arranged opposite one another with respect to the pipe interior (3).
12. Inlet pipe (1) according to claim 11, characterized in that The holding section (15) has a conical face (17) which extends partially around the pipeline (R).
13. Inlet pipe (1) according to one of claims 8 to 12, characterized in that The receiving section (6) has a tapered introduction area (18) in the inlet region, wherein a support area (19) with constant diameter is attached to the introduction area (18).
14. A device comprising an inlet pipe (1) according to one of the preceding claims and a fitting bracket (20) having a support point (21) for fixed support of the inlet pipe (1) at the fitting bracket (20), wherein the fitting bracket (20) has at the support point (21) a recess (22) through which the residual water channel (9) extends.
15. The apparatus of claim 14, wherein, The device further comprises a sanitary item (23), in particular a toilet, having a water guide channel (24) with a channel inlet (25), and a flushing pipe (7), wherein the flushing pipe (7) extends with a support section (26) into the receiving section (6), and wherein the pipe outlet (5) of the inlet pipe (1) is located in the channel inlet (25) of the water guide channel (24).
16. The apparatus of claim 14 or 14, characterized in that, The device further comprises a pipe holder (16), wherein the inlet pipe (1) is fixedly connected with the fitting bracket (20) using the pipe holder (16).
17. A sanitary item comprising a water guide channel, wherein the inner side of the water guide channel has a water guide structure according to one of the preceding claims 1 to 7.