Linear drain

Abstract

This invention provides a linear floor drain, comprising a drain base, a water seal seat installed at the lower end of the drain base, and a mounting base for connecting to a water pipe. The drain base, water seal seat, and mounting base are interconnected, with the mounting base connected to the lower end of the water seal seat. The rotation axis of the mounting base does not coincide with the central axis of the water seal seat. When the mounting base is connected to the water pipe, the orthographic projection of the portion of the water pipe directly below the water seal seat onto the drain base is entirely within the drain base. The linear floor drain base disclosed in this invention features an eccentrically positioned mounting base at the lower end, and the orthographic projection of the portion of the water pipe directly below the water seal seat onto the drain base is entirely within the drain base. This allows the drain base to be installed flush against the wall, shortening the distance between the drain base and the wall, thereby reducing the possibility of water accumulation between the wall and the drain base.

Description

Technical Field

[0001] This invention relates to a floor drain, and more particularly to a linear floor drain. Background Technology

[0002] A linear floor drain is a long, narrow drain typically installed in a shower enclosure. Since existing shower enclosures are slightly angled relative to horizontal, the drain is usually installed at the lowest point of the enclosure to better drain water. As an important component of the residential drainage system, the linear floor drain not only effectively controls odors in the bathroom but also considers space utilization and safety. One type of linear floor drain includes a long, narrow drain base and a water pipe installed at the lower end of the drain base, with the drain base connected to the water pipe.

[0003] The drain seat in the above application has a water pipe installed at the lower end, which makes it impossible to install the drain seat tightly against the wall. This results in a distance between the drain seat and the wall. When indoor water flows out through the drain seat along the inclined surface, water will accumulate between the drain seat and the wall. This water is not easy to flow into the drain seat at the same time. Therefore, the present invention is based on the prior art and aims to solve the above problems. Summary of the Invention

[0004] This invention provides a linear floor drain that can effectively solve the above-mentioned problems.

[0005] This invention is implemented as follows:

[0006] A linear floor drain includes a floor drain base, a water seal seat installed at the lower end of the floor drain base, and a mounting seat for connecting to a water pipe. The floor drain base, water seal seat, and mounting seat are interconnected. The mounting seat is connected to the lower end of the water seal seat. The rotation center axis of the mounting seat does not coincide with the center axis of the water seal seat. When the mounting seat is connected to the water pipe, the orthographic projection of the portion of the water pipe located directly below the water seal seat onto the floor drain base is all within the floor drain base.

[0007] As a further improvement, an expansion member is formed on the upper part of the end of the mounting base away from the wall, and the expansion member has an expansion cavity that communicates with the water seal seat.

[0008] As a further improvement, the expansion member is a semi-cylindrical boss that connects with the mounting base.

[0009] As a further improvement, the cross-sectional area of ​​the expansion member is greater than 1 / 2 the cross-sectional area of ​​the mounting base.

[0010] As a further improvement, the height of the water seal seat is H, and the height of the expansion member ranges from 0.1 to 1H.

[0011] As a further improvement, the mounting base is provided with a first threaded portion for threaded connection of the water supply pipe on its periphery.

[0012] As a further improvement, when the water pipe is threaded onto the mounting base, there is a gap between the water pipe and the wall-facing side of the drain seat.

[0013] As a further improvement, the lower end of the mounting base is formed with a fitting that communicates with the mounting base. The cross-sectional area of ​​the fitting is smaller than the cross-sectional area of ​​the mounting base, and a second threaded portion for threaded connection of a water supply pipe is provided on the periphery of the fitting.

[0014] As a further improvement, a level is mounted on the top of the expansion component.

[0015] The beneficial effects of this invention are:

[0016] First, the linear drain seat disclosed in this invention has an eccentric mounting base at the lower end, and the orthogonal projection of the part of the water pipe located directly below the water seal seat onto the drain seat is located inside the drain seat, which allows the drain seat to be installed close to the wall, shortening the distance between the drain seat and the wall, thereby reducing the possibility of water accumulation between the wall and the drain seat.

[0017] Secondly, an expansion component is installed at the upper part of the end of the mounting base away from the wall, which increases the volume of liquid that the water seal base can hold and improves the drainage capacity of the floor drain.

[0018] Third, when the water pipe is connected to the mounting base, the fitting not only reduces the diameter of the inlet end of the first external pipe, slowing down the upward flow rate of water when the pipe is blocked, but also creates an overflow cavity between the fitting and the water pipe, which acts as a diversion mechanism, further slowing down the speed at which the water level rises when the pipe is blocked, thus providing a good anti-backflow effect. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0020] 1. Floor drain seat; 2. Water pipe; 3. Water seal seat; 4. Mounting base; 5. Expansion component; 51. Expansion cavity; 6. Assembly parts; 7. Level; 8. Overflow cavity.

[0021] Figure 1 This is a schematic diagram of the overall structure provided in an embodiment of the present invention.

[0022] Figure 2This is an exploded view of the mounting base of the present invention.

[0023] Figure 3 This is a cross-sectional schematic diagram illustrating the assembly of the present invention. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to represent selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] In the description of this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] like Figure 1 , 2 As shown, a linear floor drain includes a floor drain base 1, a water seal seat 3 installed at the lower end of the floor drain base 1 and connected to the floor drain base 1, and a mounting base 4 for connecting to a water pipe 2. The mounting base 4 has a cylindrical structure and is connected to the water seal seat 3. The rotation center axis of the mounting base 4 does not coincide with the center axis of the water seal seat 3, and when the water pipe 2 is connected to the mounting base 4, the orthographic projection of the portion of the water pipe 2 located directly below the water seal seat 3 onto the floor drain base 1 is all within the floor drain base 1.

[0027] When installing the floor drain, the eccentric setting of the mounting base 4 allows the floor drain base 1 facing the wall to be installed close to the wall, reducing the distance between the wall and the floor drain base 1. Also, since the floor drain is usually installed at the lowest point of the shower room, the water in the room can flow directly into the floor drain base 1 along the inclined angle and be discharged from the floor drain, reducing the possibility of water accumulating between the floor drain base 1 and the wall.

[0028] like Figure 2As shown, the upper part of the mounting base 4 away from the wall has an expansion member 5. The expansion member 5 is a semi-cylindrical boss, and the radius R of the expansion member 5 is equal to the radius R of the mounting base 4, so that the expansion member 5 and the mounting base 4 are connected to each other.

[0029] like Figure 3 As shown, the expansion component 5 has an expansion cavity 51 that communicates with the water seal seat 3. The expansion cavity 51 expands the volume of liquid that the water seal seat 3 can hold. When the indoor water flow is large, the water flows into the water seal seat 3 along the floor drain seat 1. Part of the water flows out through the water pipe 2 along the mounting base 4, while the other part of the water flows into the expansion cavity 51, which serves to divert the flow, slow down the water flow rate, and reduce the flushing effect of the water flow on the floor drain seat 1.

[0030] Furthermore, such as Figure 2 , 3 As shown, the cross-sectional area of ​​the expansion component 5 is greater than 1 / 2 the cross-sectional area of ​​the mounting base 4, which can further expand the volume of liquid that the water seal base 3 can hold, and improve the drainage capacity of the floor drain when the indoor water volume is large.

[0031] As shown in Figure 3, the mounting base 4 has a first threaded portion on its periphery. The water pipe 2 is connected to the mounting base 4 by threading into the first threaded portion. When the water pipe 2 is connected to the lower end of the mounting base 4, there is a gap between the water pipe 2 and the drain seat 1 facing the wall, which effectively reduces the impact between the wall and the water pipe 2 during installation and improves installation efficiency. It should be noted that the cross-sectional area of ​​the water pipe 2 is larger than the cross-sectional area of ​​the mounting base 4. In this embodiment, the water pipe 2 connected to the mounting base 4 is a commercially available pipe, i.e., a water pipe with a diameter of 5.0 cm.

[0032] like Figure 3 As shown, to improve the adaptability of the floor drain to pipes of different sizes, a fitting 6 is provided at the lower end of the mounting base 4, and the fitting 6 is connected to the mounting base 4. The cross-sectional area of ​​the fitting 6 is smaller than that of the mounting base 4, and a second threaded portion for threaded connection of the water supply pipe 2 is provided on the periphery of the fitting 6. It should be noted that in this embodiment, the water pipe 2 connected to the fitting 6 is a commercially available pipe, namely a water pipe with a diameter of 4.0 cm.

[0033] When water pipe 2 becomes blocked, if indoor water continues to flow into water pipe 2 through the floor drain, there is a risk of water rapidly overflowing from the pipe and into the floor drain. However, in this application, due to the addition of fitting 6, and the fact that the cross-sectional area of ​​fitting 6 is smaller than that of mounting base 4, and according to the formula for upward flow velocity, the upward flow velocity of the liquid is directly proportional to the diameter of the inlet. Therefore, the upward flow velocity of the liquid surface in water pipe 2 with fitting 6 is less than the upward flow velocity of water directly discharged from water pipe 2, effectively mitigating the backflow phenomenon from the floor drain.

[0034] Furthermore, such as Figure 3 As shown, since an overflow cavity 8 is formed between the water pipe 2 and the fitting 6, when the indoor water continues to enter the water pipe 2 through the connector, part of the water flows directly into the water pipe 2, while the other part of the water can be diverted into the overflow cavity 8, thereby slowing down the upward flow velocity of the water and further alleviating the phenomenon of water overflowing from the floor drain.

[0035] like Figure 1 As shown, to facilitate the installation of the linear floor drain, a level 7 is installed on the top of the expansion component 5. The top surface of the expansion component 5 is parallel to the top surface of the floor drain base 1. In this embodiment, the level 7 is installed by adhesive bonding. In other embodiments, it can also be installed by a detachable method such as threaded connection. During installation, the level 7 can be used to quickly determine whether the floor drain base 1 is in a horizontal position, improving the installation efficiency of the floor drain.

[0036] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the invention by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. A linear drain, comprising: The system includes a drain seat (1), a water seal seat (3) installed at the lower end of the drain seat (1), and a mounting seat (4) for connecting to a water pipe (2). The drain seat (1), water seal seat (3), and mounting seat (4) are interconnected. The mounting seat (4) is connected to the lower end of the water seal seat (3). The rotation center axis of the mounting seat (4) does not coincide with the center axis of the water seal seat (3). When the mounting seat (4) is connected to the water pipe (2), the orthographic projection of the portion of the water pipe (2) located directly below the water seal seat (3) onto the drain seat (1) is all within the drain seat (1). The mounting base (4) has an expansion member (5) formed on the upper part of the end away from the wall to expand the water seal seat (3) to accommodate liquid volume. The expansion member (5) is a semi-cylindrical boss connected to the mounting base (4). The expansion member (5) has an expansion cavity (51) connected to the lower end of the water seal seat (3). The cross-sectional area of ​​the expansion member (5) is greater than 1 / 2 of the cross-sectional area of ​​the mounting base (4). The height of the water seal seat (3) is H, and the height range of the expansion member (5) is 0.1~1H. The lower end of the mounting base (4) is formed with a fitting (6) that communicates with the mounting base (4). The cross-sectional area of ​​the fitting (6) is smaller than the cross-sectional area of ​​the mounting base (4). The fitting (6) has a second threaded part on its periphery for threaded connection of the water supply pipe.

2. The linear drain of claim 1, wherein, The mounting base (4) is provided with a first threaded part for threaded connection of water supply pipe (2) on its periphery.

3. The linear drain of claim 2, wherein, When the water pipe (2) is threaded onto the mounting base (4), there is a gap between the water pipe (2) and the drain base (1) facing the wall.

4. The linear drain of claim 1, wherein, A level (7) is installed on the top of the expansion component (5).

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