Water seal floor drain core
By designing an integrated water-sealed floor drain core, the cyclonic waterway and slope-type structure solves the problems of gas overflow, small water discharge and easy blockage of the existing floor drain core, achieving insect prevention, odor isolation and efficient drainage, with a simple structure and low cost.
Patent Information
- Application Number
- CN202421725449.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-19
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-07-19
AI Technical Summary
The existing floor drain core has many problems in preventing gas overflow, small displacement and easy blockage, which affects the comfort and health of the living environment.
The integrated water seal floor drain core is adopted, and a cyclic water passage is formed between the water inlet and outlet, forming a water seal structure, combining the slope-type inner peripheral surface and the outer peripheral surface with gradient wall thickness, increasing the water area and drainage smoothness, and equipped with detachable handles for easy cleaning.
It achieves effective anti-worm and odor isolation, while improving the drainage and anti-blocking performance, with a simple structure and low cost.
Smart Images

Figure CN223151313U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of sanitary and kitchen equipment, in particular to a water seal floor drain core. Background Art
[0002] As an important part of the drainage system in residential and commercial buildings, the performance of floor drains directly affects the indoor air quality and sanitary environment. Although the existing floor drain cores have solved the basic drainage needs to a certain extent, there are still many problems in their actual applications and urgent improvement and optimization are needed.
[0003] 1. Gas overflow problem:
[0004] The existing floor drain cores generally lack an effective water seal pipe design, resulting in the gas in the drain pipe being able to overflow from the floor drain core through the drain pipe, thus emitting unpleasant odors. This phenomenon not only affects the comfort of the living environment but also may pose a potential threat to human health.
[0005] 2. Small drainage volume and easy blockage:
[0006] The existing floor drain cores have problems of small drainage volume and easy blockage in design. Specifically manifested as:
[0007] Spring floor drain core: The spring structure is prone to rusting, and its resistance is large, resulting in difficult drainage.
[0008] Rubber floor drain core: The rubber-closed structure has a small drainage volume and is also prone to difficult drainage.
[0009] Floor drain core with magnetic adsorption structure: It is easy to adsorb metal impurities such as iron, affecting the sealing effect and resulting in poor drainage.
[0010] Gravity structure floor drain core: Its counterweight block occupies the bottom opening space of the floor drain core, resulting in a small drainage volume of the floor drain and thus prone to difficult drainage.
[0011] In view of the above problems, the inventor of the present utility model provides a better solution. Content of the Utility Model
[0012] The purpose of the present utility model is to provide a water seal floor drain core, which realizes insect prevention and odor isolation through the water seal principle and has a simple structure.
[0013] To achieve the above purpose, the present utility model adopts the following technical solutions:
[0014] A water seal floor drain core, which is integrally formed, includes a water inlet and a water outlet, and a swirling water passage is formed between the water inlet and the water outlet, and a water seal structure is formed at the same time.
[0015] The water-sealed floor drain core adopting the above structure can form a water seal by using the swirling water passage, achieving the effects of preventing insects and isolating odors. The water-sealed floor drain core of this structure only requires one component, with a simple structure, and has cost advantages both in terms of processes and materials.
[0016] Preferably, the water-sealing structure includes a bottom, a cylindrical surface, an inner peripheral surface, and an outer peripheral surface. Among them, the top end surface of the outer peripheral surface is higher than the bottom end surface of the inner peripheral surface. The design that the top end surface of the outer peripheral surface is higher than the bottom end surface of the inner peripheral surface helps to form a water cover surface.
[0017] Preferably, a handle is provided at the water inlet. This floor drain core is used to be installed on the floor drain of the drainage pipe system, and the handle facilitates taking out the floor drain core for cleaning and maintenance.
[0018] Preferably, the handle is in the shape of a cross rib.
[0019] Preferably, the bottom is connected to the outer peripheral surface, the outer peripheral surface is connected to the cylindrical surface, and the bottom is connected to the cylindrical surface by fillet transitions. This design can make the overall structural strength of the floor drain core stronger and facilitate rapid drainage.
[0020] Preferably, the inner peripheral surface is composed of two inclined surfaces connected by an arc, and the outer peripheral surface is an inclined surface connecting the bottom and the cylindrical surface. The sloped inner peripheral surface design and the outer peripheral surface design make the water passing area of the floor drain core larger, with a large water passing volume and smooth drainage.
[0021] Preferably, the inner peripheral surface is an arc surface protruding inward, and the outer peripheral surface is an inclined surface connecting the bottom and the cylindrical surface. The arc-shaped inner peripheral surface design combined with the sloped outer peripheral surface design makes the water passing area of the floor drain core larger, with a large water passing volume and smooth drainage.
[0022] Preferably, the wall thickness of the outer peripheral surface gradually thins along the direction of the water outlet. This design further ensures a larger water passing area at the water outlet and smoother water discharge.
[0023] Preferably, an external thread is provided at the water inlet for spiral connection with the floor drain.
[0024] Preferably, a sealing ring is provided outside the water inlet for sealing cooperation with the floor drain. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.
[0026] Figure 1 is the three-dimensional structure of the present utility model Figure 1 .
[0027] Figure 2 is the three-dimensional structure of the present utility model Figure 2 .
[0028] Figure 3 is the sectional view of the present utility model.
[0029] Figure 4 is the side plane view of the present utility model. Specific embodiments
[0030] As Figures 1 to 4 shown, a water seal floor drain core is integrally formed, including a water inlet 01 and a water outlet 02, and a swirling water passage is formed between the water inlet 01 and the water outlet 02, and a water seal structure is simultaneously formed.
[0031] The water seal structure includes a bottom 1, a cylindrical surface 2, an inner peripheral surface 3 and an outer peripheral surface 4. Among them, the top end surface of the outer peripheral surface 4 is higher than the bottom end surface of the inner peripheral surface 3. As Figure 4 shown, A represents the top end surface of the outer peripheral surface 4, and B represents the bottom end surface of the inner peripheral surface 3. In this way, the accumulated water in the floor drain core can form a water seal between A and B at the water outlet 02, realizing insect prevention and odor isolation.
[0032] Specifically, the inner peripheral surface 3 is composed of two inclined surfaces 31 and 32 connected by an arc, and the outer peripheral surface 4 is an inclined surface connecting the bottom 1 and the cylindrical surface 2. The overall slope design makes the water passing area of the floor drain core larger, the water passing volume larger, and the drainage smoother. The wall thickness of the outer peripheral surface 4 along the water outlet direction is designed to gradually become thinner to ensure a larger water passing area and smoother water outlet at the water outlet, as Figure 3 shown.
[0033] As another alternative design, the inner peripheral surface 3 can directly adopt an arc design, and the outer peripheral surface 4 is still an inclined surface connecting the bottom 1 and the cylindrical surface 2, with the same guiding effect.
[0034] In order to make the overall structural strength of the floor drain core stronger and the drainage faster, the bottom 1 of the floor drain core is connected with the outer peripheral surface 4, the outer peripheral surface 4 is connected with the cylindrical surface 2, and the bottom 1 is connected with the cylindrical surface 2 by fillet transition connections.
[0035] As a preferred embodiment, this floor drain core can be connected to the floor drain by threaded spiral connection, or a sealing ring can be provided at the lower edge of the water inlet 01 of the floor drain core to form a sealing fit with the floor drain. In order to take out the floor drain core regularly for cleaning and maintenance, a handle 5 can be provided at the water inlet 01 of the floor drain core, and the handle 5 is preferably in the shape of a cross rib.
[0036] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, various improvements and changes can be made to the present utility model. Any modifications, equivalent replacements, improvements, etc. made under the design concept and idea of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A water seal floor drain core, characterized in that, The described floor drain core is integrally formed, including a water inlet and a water outlet. A swirling water passage is formed between the water inlet and the water outlet, and a water seal structure is also formed simultaneously.
2. The water seal floor drain core according to claim 1, characterized in that, The described water seal structure includes a bottom, a cylindrical surface, an inner peripheral surface, and an outer peripheral surface. Among them, the top end surface of the outer peripheral surface is higher than the bottom end surface of the inner peripheral surface.
3. The water seal floor drain core according to claim 1, characterized in that, A handle is provided at the water inlet.
4. The water seal floor drain core according to claim 3, characterized in that, The described handle is in the shape of a cross rib.
5. The water seal floor drain core according to claim 2, wherein, Rounded transitions are used for the connections between the bottom and the outer peripheral surface, between the outer peripheral surface and the cylindrical surface, and between the bottom and the cylindrical surface.
6. The water seal floor drain core according to claim 2, wherein The described inner peripheral surface is composed of two inclined surfaces connected by an arc, and the outer peripheral surface is an inclined surface connecting the bottom and the cylindrical surface.
7. The water seal floor drain core according to claim 2, characterized in that The described inner peripheral surface is an arc surface protruding inward, and the outer peripheral surface is an inclined surface connecting the bottom and the cylindrical surface.
8. The water seal floor drain core according to claim 2, characterized in that, The wall thickness of the described outer peripheral surface gradually thins along the direction of the water outlet.
9. The water seal floor drain core according to claim 1, characterized in that, External threads are provided at the water inlet for screw connection with the floor drain.
10. The water seal floor drain core according to claim 1, characterized in that, A sealing ring is provided outside the water inlet for sealing cooperation with the floor drain.