Waterproof base plate and assembled bathroom

By designing a water collection tray and setting installation holes on the waterproof base, the problem of connecting the floor drain and the drain pipe in prefabricated bathrooms is solved, achieving convenient installation and efficient drainage, and is suitable for the rapid installation of prefabricated bathrooms.

CN224441186UActive Publication Date: 2026-07-03WANHUA ECOLOGICAL NEW HOME IMPROVEMENT (HENAN) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WANHUA ECOLOGICAL NEW HOME IMPROVEMENT (HENAN) CO LTD
Filing Date
2025-08-08
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

The installation of floor drains on existing prefabricated bathroom waterproof chassis is difficult, especially since the position of the drain pipe is misaligned, making it difficult to connect the floor drain to the drain pipe. This requires manual adjustment or cutting of the drain pipe, which is inconvenient for installation.

Method used

Design a water collection tray with at least two mounting holes. The width and length of the water collection tray are allowed to be within a certain deviation range for the mounting holes. The mounting holes are used to compensate for the position deviation of the drain pipe. The water collection tray can be fixed to the base and connected by foam material. The water collection tray is a metal tray with a stepped structure mounting cover on the side wall.

Benefits of technology

It improves the fault tolerance and work efficiency of installation, ensures convenient connection between floor drain and sewer pipe, improves drainage efficiency, and is suitable for rapid prefabricated bathrooms in the hotel renovation market.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224441186U_ABST
    Figure CN224441186U_ABST
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Abstract

A waterproof base and assembled bathroom belong to the technical field of assembled decoration. The waterproof base is used for the assembled bathroom, comprising a base body and a water collecting tray. The water collecting tray is a flat bottomed disc structure with an open upper part. The water collecting tray is fixed on the base body by foaming material, and the upper edge of the water collecting tray is not higher than the upper installation structure installed in the base body. The bottom of the water collecting tray is provided with at least two installation holes for installing floor drains. The waterproof base of the utility model can dig installation holes on the water collecting tray. Since the width and length of the water collecting tray are set to be able to process at least two installation holes, the installation holes dug by the water collecting tray have a certain distribution range. When the pipe opening position of the sewer pipe is deviated, the deviation can still be compensated to a certain extent by the position of the installation hole, facilitating installation work, improving fault tolerance and improving work efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of prefabricated decoration technology, specifically to a waterproof chassis and prefabricated bathroom fixtures. Background Technology

[0002] Prefabricated construction is becoming increasingly widespread, and prefabricated bathroom fixtures, in particular, are gaining popularity because they allow for the rapid assembly of bathrooms with shower functions without the need for waterproofing. This is especially true in the hotel renovation market, where hotels often prefer small-sized dual floor drains that can be accurately connected to existing pipework during renovations.

[0003] The prefabricated bathroom unit has a waterproof base with a floor drain installed on it. Currently, the floor drain is fixed in a fixed position on the waterproof base. This floor drain must be aligned with the drain pipe located below to drain water. However, during actual installation, because the drain pipe is installed manually, its position cannot be perfectly precise, and therefore, the drain pipe will inevitably deviate slightly from the designed location. This makes it difficult, or even impossible, to connect the floor drain to the drain pipe, requiring manual manipulation of the drain pipe opening. If the drain pipe's position deviates too much, it must be cut and reinstalled to adjust its position, making installation inconvenient. Utility Model Content

[0004] This utility model provides a waterproof chassis and a prefabricated bathroom fixture, aiming to at least partially solve the above-mentioned technical problems.

[0005] As a first aspect of this utility model, a waterproof base is provided for prefabricated bathroom fixtures, including a base body and a water collection tray. The water collection tray is a flat-bottomed disc-shaped structure with an open top. The water collection tray is fixed to the base body by foam material, and the upper edge of the water collection tray is not higher than the upper structure installed inside the base body. The bottom of the water collection tray is configured to allow for the machining of at least two mounting holes for installing floor drains.

[0006] The water collection tray is arranged along one side of the chassis body, and the length of the water collection tray is greater than four-fifths of the length of that side of the chassis body.

[0007] The water collection tray is located in the middle of the chassis body.

[0008] The water collection tray is equipped with at least two floor drains.

[0009] The two floor drains are located at opposite ends of the water collection tray.

[0010] The water collection tray is a metal tray.

[0011] The water collection tray is made of stainless steel.

[0012] The side wall of the water collection tray has a stepped structure, which is used to install a cover plate with a drainage hole.

[0013] The chassis body has a rectangular structure.

[0014] As a second aspect of this utility model, a prefabricated bathroom fixture is also provided, including the aforementioned waterproof chassis and side wall panels installed on the waterproof chassis.

[0015] Based on the above solution, it can be seen that the waterproof chassis and prefabricated bathroom of this utility model have at least one of the following beneficial effects compared with the prior art:

[0016] The waterproof base of this utility model allows for the on-site excavation of installation holes in the water collection tray. Since the width and length of the water collection tray are designed to allow for the fabrication of at least two installation holes, the installation holes can be distributed within a certain range. When there is a deviation in the position of the drain pipe opening, the deviation can still be compensated to a certain extent by adjusting the position of the installation holes, which facilitates installation, improves fault tolerance, and increases work efficiency. The dual drain design greatly improves drainage efficiency, resulting in rapid drainage. Attached Figure Description

[0017] To more clearly illustrate the technical solution of this utility model, the accompanying drawings used in the embodiments will be briefly introduced below.

[0018] Figure 1 This is a schematic diagram of the structure of the waterproof chassis of this utility model;

[0019] Figure 2 This is a schematic diagram of another structure of the waterproof chassis of this utility model;

[0020] In the picture: 1. Chassis body; 2. Water collection tray; 3. Floor drain; 4. Cover plate; 5. Tiles. Detailed Implementation

[0021] To better understand the technical solutions of the embodiments of this utility model, the embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0022] It should be understood that the described embodiments are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0023] like Figure 1As shown, this utility model embodiment discloses a waterproof chassis. The waterproof chassis includes a chassis body 1 and a water collection tray 2. Figure 1 The chassis body 1 is a rectangular structure. The bottom of the chassis body 1 is a flat plate with retaining edges around it to prevent water from flowing away. Tiles, flooring, and other superstructures are installed on the chassis body 1. These superstructures are fixed to the chassis body 1 using foam material.

[0024] The water collection tray 2 is a flat-bottomed, disc-shaped structure with an open top. This tray collects water from the waterproof chassis 1. The tray 2 is fixed to the chassis body 1 using foamed material, and its upper edge is no higher than the superstructure installed inside the chassis body 1. The superstructure on the chassis body 1 can be sloped appropriately to facilitate water flow to the collection tray 2. The foamed material is polyurethane foam. The process of connecting the collection tray 2 to the chassis body 1 using foamed material is carried out on a factory foaming production line, allowing for mass production.

[0025] The bottom of the water collection tray 2 is designed to allow for the machining of at least two mounting holes for installing the floor drain 3. Therefore, during use, mounting holes can be dug on-site in the water collection tray 2. Since the width and length of the water collection tray 2 are designed to accommodate at least two mounting holes, the mounting holes have a certain distribution range. Even if there is a deviation in the position of the drain pipe opening, the deviation can still be compensated for to some extent by the position of the mounting holes, facilitating installation, improving fault tolerance, and increasing work efficiency.

[0026] In this embodiment, the water collection tray 2 is arranged along one side of the chassis body 1, and the length of the water collection tray 2 is greater than four-fifths of the length of that side of the chassis body 1. This increases the size of the water collection tray 2, thus allowing the mounting holes for the floor drain 3 to be arranged over a larger area. More specifically, the length of the water collection tray 2 is 80-95% of the length of the corresponding side of the chassis body 1, the width of the water collection tray 2 is 10-15cm, and the mounting holes excavated on the water collection tray 2 have a deviation compensation capability of ±50mm in the length direction and a deviation compensation capability of ±20mm in the width direction. The minimum distance between two mounting holes is 20cm, and the specific size of the mounting holes is set according to the installation specifications required by the specific floor drain. In other embodiments of this utility model, such as Figure 2 As shown, the water collection tray 2 can also be set in the middle of the base body 1, so that water from both sides of the base body 1 flows to the middle at the same time. This can reduce the slope of the tiles 5 above the base body 1 for drainage, making the tiles 5 more horizontal, which is more friendly to the elderly and helps them stand steadily during bathing.

[0027] Depend on Figure 1It can be seen that the water collection tray 2 is equipped with at least two floor drains 3. When one of them becomes blocked, the remaining one can still be used. The two floor drains 3 are located at opposite ends of the water collection tray 2, which facilitates installation without interference between them.

[0028] In this embodiment, the water collection tray 2 is a metal tray. Specifically, an aluminum tray or a stainless steel tray can be selected.

[0029] The sidewall of the water collection tray 2 has a stepped structure, which is used to install the cover plate 4 with drainage holes. Figure 1 The middle part is a schematic diagram of the cover plate 4 being moved upward from the water collection tray 2.

[0030] During installation, the waterproof base of this invention can be installed by first placing a piece of cardboard above the drain pipe and marking the location of the drain pipe opening on the cardboard. Then, the cardboard is attached to the water collection tray 2, and a hole is drilled in the water collection tray 2 according to the marked drain pipe opening location. In this way, when the waterproof base 1 is placed in the bathroom, the mounting hole on the water collection tray 2 is precisely aligned with the drain pipe, which facilitates the alignment and installation between the floor drain and the drain pipe.

[0031] This utility model embodiment also discloses a prefabricated bathroom fixture, including a waterproof base and side wall panels installed on the waterproof base. The waterproof base is the same as described above.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A waterproofed tray for a prefabricated bathroom, characterized in that, The device includes a chassis body and a water collection tray. The water collection tray is a flat-bottomed disc-shaped structure with an open top. The water collection tray is fixed to the chassis body by foam material, and the upper edge of the water collection tray is not higher than the upper structure installed inside the chassis body. The bottom of the water collection tray is designed to allow for the machining of at least two mounting holes for installing floor drains.

2. The waterproof tray of claim 1, wherein, The water collection tray is arranged along one side of the chassis body, and the length of the water collection tray is greater than four-fifths of the length of that side of the chassis body.

3. The waterproof tray of claim 1, wherein, The water collection tray is located in the middle of the chassis body.

4. The waterproof tray of claim 1, wherein, The water collection tray is equipped with at least two floor drains.

5. The waterproof tray of claim 4, wherein, The two floor drains are located at opposite ends of the water collection tray.

6. The waterproof enclosure of claim 1, wherein, The water collection tray is a metal tray.

7. The waterproof tray of claim 6, wherein, The water collection tray is made of stainless steel.

8. The waterproof enclosure of claim 1, wherein, The side wall of the water collection tray has a stepped structure, which is used to install a cover plate with a drainage hole.

9. The waterproof enclosure of claim 1, wherein, The chassis body has a rectangular structure.

10. A prefabricated bathroom fixture, characterized in that, It includes a waterproof chassis as described in any one of claims 1 to 9 and a side wall panel mounted on the waterproof chassis.