Drain fitting and drainage system having the same

Abstract

The application provides a drainage joint and a drainage system with the same, relates to the technical field of indoor drainage, and mainly aims to provide a drainage joint structure which is convenient to install and use and has excellent water leakage prevention effect. The drainage joint comprises a drainage part, the drainage part is of a tubular structure, a drainage hole for drainage is arranged through the drainage part in the axial direction, an annular shell is formed on the outside of one end of the drainage part in the axial direction, an annular groove is formed between the annular shell and the outer side wall of the drainage part, a plurality of limiting protrusions are formed on the inner side wall of the drainage part, and a drainage groove is formed between two adjacent limiting protrusions. The annular shell and the limiting protrusions are located on the same side of the drainage part. The application is used in the field of indoor drainage, and the special design of the shape of the drainage joint makes it have excellent water leakage prevention effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of indoor drainage, in particular to a drainage joint and a drainage system with the same. BACKGROUND

[0002] In the construction stage, it is necessary to use a pre-buried pipe sleeve to connect and fix the corresponding pipeline, especially the water supply and drainage pipe. The above-mentioned pipeline will be fixed and hidden during the pouring stage. Taking the drainage pipe as an example, when the drainage pipe is installed and laid, it is necessary to first pour cement outside the pipe to wrap most of the area of the pipe, and then brush a waterproof layer above the pouring area and perform a closed water test. After the closed water test is passed, taking the traditional ceramic tile laying as an example, it is necessary to lay mortar and ceramic tiles again on the waterproof layer, and finally install a floor drain. During the above construction process, especially during the closed water test stage, since part of the waterproof layer will flow into the drainage pipe, the waterproof layer is easily damaged during the pipe insertion and pipe pulling operation, causing cracks in the connection between the waterproof layer and the pipe opening of the drainage pipe and its vicinity. At this time, after long-term use, part of the water will seep into the mortar layer through the brick joint, and enter the cement layer through the crack of the waterproof layer and stay there and cannot be drained. The water-containing cement layer will cause the entire floor, wall surface, and corner to be in a damp state for a long time, eventually forming wall cancer and mold on the floor, corner, and wall surface.

[0003] In order to avoid the occurrence of the above-mentioned problems, construction personnel will repeatedly brush waterproof near the drainage pipeline, which will cause too much waterproof paint to flow into the drainage pipe and cause the drainage pipe to be blocked, thereby affecting the normal use of the drainage pipe.

[0004] In order to solve the above-mentioned problems, under the premise of ensuring that the waterproof layer can be normally brushed, it is necessary to develop a new type of drainage joint and a drainage system with the same to ensure that the connection between the drainage joint and the waterproof layer will not be damaged and leak. SUMMARY

[0005] The purpose of the present application is to provide a drainage joint and a drainage system with the same to solve the technical problem that the connection between the drainage joint and the waterproof layer is prone to leaking in the prior art. The preferred technical solutions in the technical solutions provided by the present application can produce the technical effects described below.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0007] The present application provides a drainage joint, comprising:

[0008] a drainage part, the drainage part being a tubular structure and a drainage hole for drainage being provided through the drainage part in the axial direction;

[0009] A ring-shaped housing is formed on the outer side of one end of the drain part in the axial direction of the drain part, and a ring-shaped groove is formed between the ring-shaped housing and the outer side wall of the drain part;

[0010] Limiting protrusions are formed on the inner side wall of the drain part, and a drain groove is formed between adjacent limiting protrusions.

[0011] The ring-shaped housing and the limiting protrusions are located on the same side of the drain part.

[0012] The drain joint is installed in the same way as a conventional drain joint. When the drain joint is used, waterproof paint can flow into the ring-shaped groove formed between the ring-shaped housing and the drain part, so that the waterproof paint can be firmly attached to the drain joint. The design of the ring-shaped groove can effectively prevent the waterproof paint from flowing into the drain hole and blocking the drain hole, thereby overcoming the problem of water leakage at the connection between the waterproof layer and the drain joint without affecting the drainage effect of the pipeline.

[0013] On the basis of the above technical solution, the present application can be further improved as follows.

[0014] As a further improvement of the present application, the side of the drain part close to the ring-shaped housing is in a funnel shape, and an inclined surface is formed on the inner side wall thereof, and the limiting protrusions are formed on the inclined surface.

[0015] As a further improvement of the present application, the inner side wall of the drain part further comprises a vertical surface formed above the inclined surface, and a gap is formed between the vertical surface and the limiting protrusions.

[0016] As a further improvement of the present application, the lower end of the vertical surface is connected to the inclined surface.

[0017] As a further improvement of the present application, the side of the limiting protrusion close to the drain hole is formed with a step for supporting the water falling part.

[0018] As a further improvement of the present application, the bottom wall of the ring-shaped groove is inclined, and the inclined direction is from the ring-shaped housing to the drain part.

[0019] As a further improvement of the present application, a water inlet hole is further provided on the side wall of the drain part, and the water inlet hole is formed in the middle of the drain part and communicates with the drain hole.

[0020] The water inlet hole can be matched with the secondary drainage structure to realize secondary drainage, and completely prevent the occurrence of stagnant water in the cement layer and the mortar layer; or the water inlet hole can also be matched with corresponding other pipelines to realize the collection and unified discharge of sewage at multiple different pipelines.

[0021] As a further improvement of the application, the number of the water inlet holes is at least one.

[0022] As a further improvement of the application, the annular shell protrudes relative to the drainage part in the axial direction of the drainage part.

[0023] This structure can ensure that the water that penetrates between the mortar layer and the waterproof layer through the brick joint can flow into the drainage hole located in the drainage part through the annular shell.

[0024] The application also provides a drainage system comprising the drainage joint.

[0025] Compared with the prior art, the preferred embodiment of the application has the following beneficial effects:

[0026] The installation mode of the drainage joint is consistent with that of the traditional joint, so it is convenient to use; compared with the structure of the traditional joint, the drainage joint can effectively block the waterproof coating, thereby avoiding the inflow of the waterproof coating into the drainage joint, so as to avoid affecting the normal drainage effect and avoiding the generation of odor due to the reaction between the waterproof layer and water; in addition, the drainage joint matched with the corresponding protective cover structure can also effectively block the falling of cement and mortar into the drainage pipeline system. Most importantly, compared with the traditional drainage joint, the drainage joint will not cause damage to the waterproof coating and the embedded pipeline during the closed water test. When the drainage joint is used, the water flow discharged through the falling water assembly will not directly contact the waterproof layer, so the waterproof effect and the waterproof life of the waterproof layer can be further improved, and the above drainage joint can also realize the rapid discharge of water permeated into the mortar layer, effectively avoiding the problems of wall cancer, mold and the like caused by long-term dampness of the ground. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only constitute some embodiments of the application, and for those skilled in the art, other drawings can also be obtained without creative labor based on these drawings.

[0028] Figure 1 is the overall structure schematic diagram of the drainage joint of the application;

[0029] Figure 2 is Figure 1a cross-sectional structural schematic diagram of

[0030] Figure 3 a schematic diagram of the cooperation between the drainage joint and the corresponding protective cover in the grouting stage of the present application;

[0031] Figure 4 a schematic diagram of the cooperation between the drainage joint and the corresponding protective cover in the waterproof brushing stage of the present application;

[0032] Figure 5 a schematic diagram of the use of the drainage joint in the water closing test stage of the present application;

[0033] Figure 6 a schematic diagram of the cooperation between the drainage joint and the falling water assembly after installation of the present application;

[0034] Figure 7 a schematic diagram of the use of the drainage joint when draining of the present application;

[0035] Figure 8 a schematic diagram of the structure of another embodiment of the drainage joint of the present application;

[0036] Figure 9 a cross-sectional structural schematic diagram of Figure 8

[0037] Figure 10 a schematic diagram of the use of another embodiment of the drainage joint when draining of the present application.

[0038] In the figure: 1, drainage part; 11, drainage hole; 12, inclined surface; 13, vertical surface; 14, gap; 15, water inlet hole; 2, annular shell; 3, annular groove; 4, limiting protrusion; 41, step; 5, drainage groove; 6, cement layer; 7, waterproof layer; 8, mortar layer; 9, ceramic tile layer; 10, falling water assembly. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical scheme and advantages of the present application more clear, the technical scheme of the present application will be described in detail below. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0040] ​In the description of the present application, it needs to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0041] In the description of the present application, it also needs to be explained that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0042] The technical solutions of the present application will be specifically described below in conjunction with the drawings.

[0043] The present application provides a drainage joint, which mainly comprises a drainage part 1, an annular shell 2 and a limiting protrusion 3, wherein the drainage part 1, the annular shell 2 and the limiting protrusion 3 are of an integrated structure.

[0044] Specifically, the drainage part 1 is of a tubular structure as a whole, and a drainage hole 11 for drainage is arranged through the axial direction thereof; the annular shell 2 is formed on the outer side of one end of the drainage part 1 in the axial direction thereof and is connected with the outer side wall of the drainage part 1 to form an annular groove 3; at least two limiting protrusions 4 are formed on the inner side wall of the drainage part 1, and a drainage groove 5 is formed between the adjacent two limiting protrusions 4.

[0045] The annular shell 2 and the limiting protrusion 4 are located at the same end of the axial direction of the drainage part 1 and are located at the outer side and the inner side of the drainage part 1, respectively.

[0046] The drainage joint is used in the same way as the traditional drainage joint, and only needs to be installed on the corresponding drainage vertical pipe. In use, the waterproof coating can flow into the annular groove 3 formed between the annular shell 2 and the drainage part 1, so as to ensure that the waterproof coating can be firmly attached to the drainage joint, and the design of the annular groove 3 can effectively prevent the waterproof coating from flowing into the drainage hole 11 and blocking the drainage hole 11, thereby effectively overcoming the problem of water leakage at the connection between the waterproof layer 7 and the drainage joint without affecting the drainage effect of the pipeline. The limiting protrusions 4 formed on the inner side wall of the drainage part 1 can not only be used for limiting and supporting the corresponding water falling part, but the drainage groove 5 can be used for draining water permeated between the mortar layer 8 and the waterproof layer 7. The limiting protrusions 4 can also help install a similar sleeve-shaped shielding structure to prevent the mortar from blocking the drainage groove 5 during the process of laying ceramic tiles.

[0047] Generally, in order to achieve rapid drainage of accumulated water, the end of the drainage part 1 close to the ground is provided with a funnel-shaped structure, that is, the side of the drainage part 1 close to the annular shell 2 is provided with a funnel-shaped structure, and the inner side wall of the drainage part 1 is provided with an inclined surface 12. The limiting protrusions 4 are formed on the inclined surface 12.

[0048] The limiting protrusions 4 can cooperate with the water falling assembly 10 installed above the drainage joint, so as to limit the water falling assembly 10.

[0049] As shown in Figure 1 and Figure 2 , the drainage part 1 is in a cylindrical structure as a whole, the drainage hole 11 penetrates through both ends of the drainage part 1 along the axial direction, the annular shell 2 is formed around the outside of one end of the drainage part 1, and the end face position of the annular shell 2 is higher than that of the drainage part 1. The annular groove 3 is formed between the outer side walls of the annular shell 2 and the drainage part 1. This structure can ensure that the water above the waterproof layer 7 can flow into the drainage hole 11 in the drainage part 1 through the annular shell 2. On the same side of the inner wall of the drainage part 1, a plurality of limiting protrusions 4 are formed, the plurality of limiting protrusions 4 are arranged at equal intervals, and a plurality of drainage grooves 5 are formed between adjacent limiting protrusions 4. When the waterproof coating is brushed, the waterproof coating can flow into the annular groove 3 through the annular shell 2 and form a corresponding waterproof layer 7. This structure not only effectively increases the contact area between the waterproof layer 7 and the drainage joint, but also effectively isolates the gaps between the cement layer 6, the drainage joint and the waterproof layer 7, thereby avoiding the possibility of water intrusion into the cement layer 6.

[0050] During the construction stage, the sewer line and the drainage joint mentioned above need to be installed at the corresponding position before the cement pouring of the building. During the entire installation process, there is no additional operation, and the use is convenient.

[0051] When the cement is poured, the annular groove 3 is formed on the drain joint, so that the cement can be prevented from entering the drainage system through the drainage hole 11 by temporarily covering the drain joint with a protective cover of corresponding size, as shown in Figure 3 When the cement layer 6 is dried and hardened, waterproof treatment is needed, at which time the protective cover is replaced to ensure that the waterproof coating can flow into the annular groove 3 only, as shown in Figure 4

[0052] As an optional embodiment, the bottom wall of the annular groove 3 is inclined, and the inclination direction is downward from the annular shell 2 to the drain part 1.

[0053] In order to avoid the existence of air or bubbles in the annular groove 3 filled with waterproof material, which affects the integrity of the waterproof layer 7, in this embodiment, the bottom wall of the annular groove 3 is provided as an inclined surface 12. At this time, when the waterproof material flows into the annular groove 3, the waterproof material will flow slowly from the highest position of the bottom of the annular groove 3 to the lowest position of the annular groove 3, and in this process, the waterproof material can successfully expel the air in the annular groove 3, effectively avoiding the generation of bubbles.

[0054] In actual operation, the waterproof material can be arranged to completely fill the annular groove 3 until the upper edge of the waterproof layer 7 is flush with or higher than the upper edge of the drain part 1; of course, the waterproof material can also be arranged to only partially flow into the annular groove 3, and the remaining space of the annular groove 3 is filled with mortar or other fillers.

[0055] After the waterproof layer 7 is dried, it needs to be tested for water tightness. When the water tightness test is performed, the drainage hole 11 needs to be blocked, as shown in Figure 5 During the water tightness test, since the drainage hole 11 is not in direct contact with the annular groove 3, the operation of blocking the drainage hole 11 will not cause damage to the waterproof layer 7 and the embedded pipeline, and the integrity of the waterproof layer 7 can be effectively ensured.

[0056] After the waterproof layer 7 passes the water tightness test and is completely dry, mortar is generally laid on it to form a tile layer 9, and holes are left in the positions of the tiles corresponding to the drain joints to provide installation of the falling water assembly 10, which is also called a floor drain, and the installation structure is as shown in Figure 6 In use, most of the accumulated water will directly flow into the drain joint through the falling water assembly 10, and in this process, the water will not directly contact the waterproof layer 7, which can effectively improve the waterproof quality and prolong the service life of the waterproof layer 7.

[0057] When there is a large amount of accumulated water or a large gap between the tiles, a small part of the water falling on the tile layer 9 will seep into the mortar layer 8 through the gap between the tiles, Figure 7 ​The arrow shown in the figure represents the direction of water flow in the mortar layer 8. The water in the mortar layer 8 is blocked by the waterproof layer 7 and gradually flows along the waterproof layer 7 to the drainage hole 11 and is discharged, thereby avoiding water stagnation. The cement layer 6 is located below the waterproof layer 7. In the case of a perfect waterproof layer 7, water cannot penetrate into the cement layer 6, thereby effectively protecting the cement layer 6 and avoiding problems such as wall cancer at the ground, corners, etc.

[0058] In the present embodiment, the design of the inclined surface 12 helps the water that has leaked into the mortar layer 8 to be quickly discharged.

[0059] As an optional embodiment, the inner side wall of the drainage part 1 further comprises a vertical surface 13 formed above the inclined surface 12, and a gap 14 exists between the vertical surface 13 and the limiting block 4.

[0060] The gap 14 can also cooperate with the water falling assembly 10, thereby facilitating the installation of the water falling assembly 10. In addition, the design of the gap 14 also helps to install the corresponding protective cover structure on the drainage connector. During the mortar laying stage, a protective cover with a suitable size can be covered on the drainage connector through the gap 14.

[0061] It should be noted that an annular plastic ring structure is also sleeved at the position of the gap 14 during actual installation. Since the position of the gap 14 is the inclined surface 12, the protective cover cannot be tightly fitted with the gap 14. The annular plastic ring can be used to further seal the gap 14 in cooperation with the protective cover, thereby preventing mortar from entering the drainage hole 11 through the gap and blocking the drainage hole 11.

[0062] The vertical surface 13 is connected to the lower end of the inclined surface 12. The water flowing out of the inclined surface 12 enters the drainage channel through the vertical surface 13, and the water discharged by the water falling assembly 10 directly falls into the drainage channel formed by the vertical surface 13, as shown in Figure 7 .

[0063] In order to ensure the accuracy of the installation of the water falling assembly 10, a step 41 for supporting the water falling part is formed on the side of the limiting block 4 close to the drainage hole 11. When the water falling part is inserted into the drainage connector, the lower edge of the middle part (from which water flows out) of the water falling part abuts against the step 41, and the outer peripheral side wall of the middle part abuts against the step 41, as shown in Figure 6 . At this time, the step 41 not only supports the water falling part, but also helps to fix the water falling part, thereby avoiding shaking of the water falling part relative to the drainage connector. Since the limiting block 4 is formed on the inclined surface 12, the drainage groove 5 formed between the adjacent two limiting blocks 4 is not affected by the water falling part and can still normally drain water, as shown in Figure 7 .

[0064] It can be understood that the drainage joint provided by the embodiment can effectively increase the contact area of the joint with the waterproof layer 7 when in use, better block the cement and water, thereby overcoming the problem of easy water leakage of the traditional drainage joint, and better protect the ground and wall surface.

[0065] In addition, different installation environments require pre-embedded pipes of different structures. When the drainage joint needs to be connected with other corresponding horizontal drainage pipes under the premise of meeting the normal receiving of the water falling part, as an optional embodiment, the side wall of the drainage part 1 is further provided with a water inlet hole 15, which is formed in the middle of the drainage part 1 and communicates with the drainage hole 11.

[0066] The water inlet hole 15 can be matched with a secondary drainage structure to realize secondary drainage and completely prevent the occurrence of stagnant water in the cement layer 6 and the mortar layer 8; or the water inlet hole 15 can also be matched with other corresponding pipes to realize the collection and unified discharge of sewage at multiple different pipes.

[0067] The drainage hole 11 is formed in the middle of the drainage part 1 and has a pipe opening structure formed outside, which can be matched with the corresponding pipe.

[0068] As an optional embodiment, the number of the water inlet hole 15 is at least one.

[0069] In the embodiment, the number of the water inlet hole 15 is four and is uniformly distributed on the side wall of the drainage part 1, as shown in Figure 8 and Figure 9 .

[0070] The drainage joint can be connected with the corresponding pipe arranged horizontally and perform drainage treatment on the pipe when in use, as shown in Figure 10 , in which the arrow direction is the water flow direction.

[0071] The application further provides a drainage system comprising the above-mentioned drainage joint.

[0072] The above is only a specific embodiment of the application, but the protection scope of the application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the application, which should be covered within the protection scope of the application. Therefore, the protection scope of the application should be subject to the protection scope of the claims.

Claims

1. A drain fitting, characterized by, The utility model relates to a drainage joint, which comprises: a drainage part in a tubular structure, and a drainage hole for draining water is arranged through the drainage part in the axial direction of the drainage part; an annular shell formed outside one end of the drainage part in the axial direction of the drainage part, and an annular groove is formed between the annular shell and the outer wall of the drainage part; at least two limiting blocks, and a drainage groove is formed between two adjacent limiting blocks; a step for supporting a falling water component is formed on the side of the limiting block close to the drainage hole; the side of the drainage part close to the annular shell is in a funnel structure, and an inclined surface is formed on the inner wall of the funnel structure, and the limiting block is formed on the inclined surface.

2. The drain fitting of claim 1, wherein, The inner wall of the drainage part further comprises a vertical surface formed above the inclined surface, and a gap exists between the vertical surface and the limiting block.

3. The drain fitting of claim 2, wherein, The lower end of the vertical surface is connected to the inclined surface.

4. The drain fitting of claim 1, wherein, The bottom wall of the annular groove is arranged in an inclined manner, and the inclined direction is downward from the annular shell to the drainage part.

5. The drain fitting of claim 1, wherein, A water inlet hole is further arranged on the side wall of the drainage part, and the water inlet hole is formed in the middle of the drainage part and communicates with the drainage hole.

6. The drain fitting of claim 5, wherein, The number of water inlet holes is at least one.

7. The drain fitting according to any one of claims 1-6, wherein, In the axial direction of the drainage part, the annular shell protrudes relative to the drainage part.

8. A drainage system characterised in that, The utility model further comprises the drainage joint according to any one of claims 1-7.

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