Wash basin drainer structure convenient to clean
By setting multiple coaxial channels on the bottom wall of the basin and adopting a sealed drainage structure, the problem of dirt accumulation in the gaps of the basin drain is solved, achieving convenient cleaning and hygiene.
Patent Information
- Application Number
- CN202520301048.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-24
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-02-24
AI Technical Summary
The flange of existing washbasin drainers is prone to accumulating dirt, breeding bacteria, producing odors, and is inconvenient to clean.
The basin bottom wall is provided with an upper drainage channel, a middle channel and a lower drainage channel that are coaxial. The drain seat of the drainer is installed in the lower drainage channel and is sealed by multiple sealing rings to prevent gaps from forming.
It effectively prevents dirt from accumulating in crevices, prevents bacterial growth, and improves the ease of cleaning and hygiene of the water inlet on the bottom of the basin.
Smart Images
Figure CN223824282U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sanitary equipment technology, and in particular to sanitary ware. Background Technology
[0002] Currently, traditional washbasins on the market typically have the drain installed in the water inlet on the bottom wall of the basin, with the drain flange installed at the water inlet. The joint between the flange and the water inlet makes it inconvenient to clean the basin. Over time, dirt can easily accumulate in the gaps at the joint, leading to bacterial growth and odor. Therefore, it is necessary to improve the installation structure of the drain in washbasins.
[0003] Existing washbasin technology discloses a washbasin drain installation structure, such as Figures 15 to 18 As shown, it includes: a basin body 1 and a drainer 2; the bottom wall of the basin body 1 is provided with an upper drainage channel 11 for drainage, and at the connection between the upper end of the upper drainage channel 11 and the bottom wall of the basin body 1, an annular step 112 is provided downward towards the lower end of the upper drainage channel 11; the flange 211 of the drain seat 21 of the drainer 2 is adapted to the annular step 112 of the basin body 1, and the lower end of the drain seat 21 of the drainer 2 passes through the external thread 212 of the pipe below the bottom wall of the basin body 1 and is connected to the locking nut 24 to fix the drain seat 21 of the drainer 2 in the upper drainage channel 11 of the basin body 1. A spring switch 22 is installed in the drain seat 21, and the drive rod 221 of the spring switch 22 is connected to the water-stop pressure cap 23. The shortcomings of the basin drain installation structure are: there is a gap between the annular step 112 on the bottom wall of the basin body 1 and the outer ring of the flange 211 of the drain seat 21 of the drainer 2. Over time, dirt will easily accumulate in the gap, which will breed bacteria and produce odor. Utility Model Content
[0004] The present invention provides a washbasin drain structure that is easy to clean, with the purpose of facilitating the cleaning of the water inlet on the bottom wall of the washbasin.
[0005] To solve the above-mentioned technical problems, this utility model proposes a washbasin drain structure that is easy to clean, including: a washbasin body and a drain; the bottom wall of the washbasin body has an upper drain channel and a lower drain channel arranged coaxially; the drain includes: a drain seat, a spring switch and a water-stop pressure cap, the drain seat is disposed in the lower drain channel, the lower end of the drain seat passes through the external thread of the pipe below the lower drain channel and is connected to a locking nut, the lower end of the spring switch is fixed in the drain seat, and the upper end of the spring switch passes through the drive rod above the upper drain channel and is connected to the water-stop pressure cap.
[0006] As a further limitation of this utility model, it also includes: an intermediate channel located between the upper drainage channel and the lower drainage channel, coaxially arranged, for connecting the upper drainage channel and the lower drainage channel.
[0007] As a further limitation of this utility model, it also includes: an overflow channel for connecting the overflow port on the side wall of the basin body with the overflow hole on the side wall of the intermediate channel; the overflow channel includes: a side wall channel extending along the side wall of the basin body, and a bottom wall channel extending along the bottom wall of the basin body.
[0008] As a further limitation of this utility model, the inner diameter of the intermediate channel is larger than the inner diameter of the upper drainage channel and the lower drainage channel.
[0009] As a further limitation of this utility model, it also includes: a water-stop ring, installed on the annular groove of the water-stop cover, for sealingly connecting the water-stop cover with the water inlet of the upper drainage channel.
[0010] As a further definition of this utility model, the water-stop ring includes: an inner ring embedded in the annular groove of the water-stop gland; and an outer ring extending radially outward on the outer surface of the inner ring, with its thickness gradually decreasing.
[0011] As a further limitation of this utility model, the water inlet at the upper end of the upper drainage channel is in the shape of a trumpet, which is conducive to the rapid discharge of water or liquid from the basin body.
[0012] As a further limitation of this utility model, an upper sealing ring is provided between the lower surface of the flange at the upper end of the drain seat and the upper end face of the lower drain channel to seal the connection between the upper end of the drain seat and the upper end face of the lower drain channel.
[0013] As a further limitation of this utility model, a lower sealing ring is provided between the lower end face of the lower drainage channel and the upper end of the locking nut to seal the drainage seat and the lower end face of the lower drainage channel.
[0014] As a further limitation of this utility model, the upper drainage channel, middle channel, lower drainage channel, and overflow channel of the basin body are integrally formed.
[0015] The washbasin drain structure provided by this utility model adopts a design with multiple channels arranged vertically on the bottom wall of the washbasin. The drain seat of the drain is installed in the lower drain channel, which avoids the problem of gaps at the joint between the drain seat of the drain and the water inlet edge at the upper end of the upper drain channel on the bottom wall of the washbasin body, which makes cleaning difficult. In addition, the drain of this utility model also has the advantages of simple installation and convenient disassembly and maintenance. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a cross-sectional view of the structure of the easy-to-clean basin drain of Embodiment 1 of this utility model;
[0018] Figure 2 yes Figure 1 An enlarged schematic diagram of part A in the middle;
[0019] Figure 3 This is a schematic diagram of the structure of the basin body of the basin drain structure that is easy to clean, according to Embodiment 1 of this utility model.
[0020] Figure 4 yes Figure 3 Enlarged schematic diagram of part B in the middle;
[0021] Figure 5 This is an exploded view of the drain structure of the washbasin drain structure of Embodiment 1 of this utility model, which is easy to clean.
[0022] Figure 6 This is a schematic diagram of the drain seat of the washbasin drainer structure that is easy to clean, according to Embodiment 1 of this utility model.
[0023] Figure 7 This is another perspective structural schematic diagram of the drain seat of the washbasin drainer structure that is easy to clean, according to Embodiment 1 of this utility model.
[0024] Figure 8 This is a schematic diagram of the structure of the spring switch of the washbasin drain structure that is easy to clean, according to Embodiment 1 of this utility model.
[0025] Figure 9 This is a schematic diagram of the water-stop pressure cap and water-stop ring of the washbasin drain structure that is easy to clean, according to Embodiment 1 of this utility model.
[0026] Figure 10 This is a schematic diagram of the structure of the basin body of the basin drain structure that is easy to clean, according to Embodiment 2 of this utility model.
[0027] Figure 11 yes Figure 10 An enlarged schematic diagram of section C;
[0028] Figure 12 This is a cross-sectional view of the structure of the washbasin drainer that is easy to clean, according to Embodiment 2 of this utility model;
[0029] Figure 13 yes Figure 12 An enlarged schematic diagram of section D in the middle;
[0030] Figure 14 This is an exploded view of the drain device of the washbasin drain device that is easy to clean, according to Embodiment 2 of this utility model.
[0031] Figure 15 This is a cross-sectional view of the structure of a prior art washbasin drainer;
[0032] Figure 16 yes Figure 15 An enlarged schematic diagram of section E in the middle;
[0033] Figure 17 This is a structural diagram of a washbasin body in the prior art;
[0034] Figure 18 yes Figure 17 Enlarged schematic diagram of section F in the middle.
[0035] Reference numerals: Basin body 1; Upper drainage channel 11; Water inlet 111; Annular step 112; Lower drainage channel 12; Middle channel 13; Overflow channel 14; Side wall channel 141; Bottom wall channel 142; Overflow outlet 15; Drain 2; Drain seat 21; Flange 211; External pipe thread 212; Central support 213; Spring switch 22; Drive rod 221; Water-stop pressure cap 23; Annular groove 231; Locking nut 24; Water-stop ring 25; Inner ring 25a; Outer ring 25b; Upper sealing ring 26; Lower sealing ring 27; Tail pipe 28; Locking seat 29. Detailed Implementation
[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0037] Example 1
[0038] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the washbasin drain structure provided in this embodiment, which is easy to clean, includes a washbasin body 1 and a drain 2.
[0039] On the bottom wall of the basin body 1, an upper drainage channel 11, a middle channel 13, and a lower drainage channel 12 are sequentially provided from top to bottom. The upper drainage channel 11, the middle channel 13, and the lower drainage channel 12 are coaxially arranged, that is, the center lines aa of the upper, middle, and lower channels coincide. Among them, the inner diameter of the middle channel 13 is larger than the inner diameter of the upper drainage channel 11.
[0040] The water inlet 111 at the upper end of the drainage channel of the basin body 1 has a funnel-shaped opening structure, and the upper end of the inner wall of the water inlet 111 can also adopt a rounded corner structure (such as...). Figure 4 As shown, this facilitates the rapid drainage of water or liquid from the basin body 1 and also makes it easier to clean the inlet 111 at the upper end of the upper drainage channel 11.
[0041] The drain assembly 2 includes: a drain seat 21, a spring switch 22, a water-stop pressure cap 23, a locking nut 24, a water-stop ring 25, an upper sealing ring 26, a lower sealing ring 27, and a tail pipe 28. The drain seat 21 is installed in the lower drain channel 12 of the basin body 1. Specifically, the flange 211 at the upper end of the drain seat 21 is located on the surface of the upper end of the lower drain channel 12, which can seal the connection between the upper end of the drain seat 21 and the upper end of the lower drain channel 12. The lower end of the drain seat 21 passes through the external thread 212 below the lower drain channel 12. The external thread 212 is connected to the locking nut 24, which can fix the drain seat 21 in the lower drain channel 12 of the basin body 1. An upper sealing ring 26 is provided between the lower surface of the flange 211 at the upper end of the drain seat 21 and the upper end face of the lower drain channel 12, which facilitates a better sealing connection between the upper end of the drain seat 21 and the upper end face of the lower drain channel 12. A lower sealing ring 27 is provided between the lower end face of the lower drain channel 12 (i.e., the lower surface of the basin body 1) and the upper end of the locking nut 24, which facilitates a better sealing connection between the drain seat 21 and the lower surface of the basin body 1. The lower end of the drain seat 21 passes through the internal thread 213 below the lower drain channel 12 and connects to the tail pipe 28.
[0042] like Figure 2 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9As shown, the spring switch 22 is installed inside the drain seat 21. The lower end of the main body of the spring switch 22 is fixedly connected to the central support 213 inside the drain seat 21. The spring switch 22 passes through the drive rod 221 above the upper drain channel 11 and is fixedly connected to the lower end of the water-stop cover 23. A water-stop ring 25 is provided on the annular groove 231 of the water-stop cover 23. The water-stop ring 25 is made of elastic materials such as rubber or silicone. The water-stop ring 25 includes an integrally formed inner ring 25a and an outer ring 25b. The outer ring 25b extends radially outward from the outer surface of the inner ring 25a, and its thickness gradually decreases. The inner ring 25a of the water-stop ring 25 is embedded in the annular groove 231 of the water-stop pressure cap 23 to prevent the water-stop ring 25 from falling off; the outer ring 25b of the water-stop ring 25 can abut against the inner wall of the inlet 111 of the upper drainage channel 11 to seal the water-stop pressure cap 23 with the inlet 111 of the upper drainage channel 11. The thickness of the outer ring 25b of the water-stop ring 25 is gradually reduced radially outward, so that the water-stop pressure cap 23 is less effort when applying downward pressure.
[0043] In this embodiment, the inner diameter of the upper drainage channel 11 is larger than that of the lower drainage channel 12. When installing the drainer 2, the drain seat 21 is inserted from the inlet 111 at the top of the upper drainage channel 11 into the lower drainage channel 12 from above the basin body 1. The drain seat 21 is then fixed in the lower drainage channel 12 from below using a locking nut 24. Assembling the drain seat 21 of the drainer 2 from above the basin body 1 is relatively convenient. The main body of the spring switch 22 is fixed on the central support 213 within the drain seat 21. The drive rod 221 of the spring switch 22 passes through the upper drainage channel 11 and is fixedly connected to the lower end of the water-stop cover 23. The water-stop ring 25 is located on the water-stop cover 23.
[0044] When in use, press the water-stop cap 23 once, and the water-stop cap 23 and the water-stop ring 25 will pop up. The water or liquid in the basin body 1 can be quickly discharged downward from the water inlet 111 at the upper end of the upper drainage channel 11. Since the water or liquid is not blocked at the water inlet 111 of the upper drainage channel 11 of the basin body 1, it is conducive to the hygiene and cleaning of the water inlet 111 at the upper end of the upper drainage channel. Therefore, it is not easy for dirt to accumulate and bacteria to grow at the water inlet 111 at the bottom of the basin body 1.
[0045] like Figure 1 , Figure 3 and Figure 4As shown, the basin drain structure also includes an overflow channel 14, used to connect the overflow port 15 on the side wall of the basin body 1 with the overflow hole on the side wall of the middle channel 13; the overflow channel 14 includes a side wall channel 141 extending along the side wall of the basin body 1, and a bottom wall channel 142 extending along the bottom wall of the basin body 1. The overflow channel 14 is integrally formed with the upper drain channel 11, the middle channel 13, and the lower drain channel 12 of the basin body 1, which helps to reduce the installation cost of the drain.
[0046] In summary, the basin drain structure of this embodiment adopts three channels with different aperture sizes on the basin, including an upper drainage channel 11, a middle channel 13, and a lower drainage channel 12 that are coaxial. Unlike the prior art drains that are installed at the drain outlet on the bottom wall of the basin, this application installs the drain seat of the drain in the lower drainage channel, avoiding the problem of gaps at the joint between the drain seat of the drain and the water inlet edge of the upper drain channel on the bottom wall of the basin body, which makes cleaning inconvenient.
[0047] Example 2
[0048] Please see Figure 10 , Figure 11 , Figure 12 , Figure 13 and Figure 14 The basin drain structure provided in this embodiment, which is easy to clean, differs from that in Embodiment 1 in that the inner diameter of the upper drain channel 11 is smaller than that of the lower drain channel 12, making it easier for the drain seat 21 of the drainer 2 to be installed from below the basin body 1. During the installation of the drain 2, the flange 211 at the upper end of the drain seat 21 is inserted into the upper surface of the lower drain channel 12 below the basin body 1. A locking seat 29 is provided between the lower surface of the flange 211 of the drain seat 21 and the upper surface of the lower drain channel 12. The locking seat 29 has a locking ring, the long side of which is larger than the inner diameter of the lower drain channel 12. Therefore, the upper end of the drain seat 21 is fixedly connected to the upper surface of the lower drain channel 12 through the locking seat 29. The external thread 212 at the lower end of the drain seat 21 is located below the lower drain channel 12. The drain seat 21 is fixed in the lower drain channel 12 of the basin body 1 by connecting the external thread 212 of the drain seat 21 with the locking nut 24.
[0049] 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 basin drain structure that is easy to clean, characterized in that, include: The basin body (1) and the drainer (2) are provided. The bottom wall of the basin body (1) has an upper drainage channel (11) and a lower drainage channel (12) arranged coaxially. The drainer (2) includes a drain seat (21), a spring switch (22) and a water-stop cover (23). The drain seat (21) is located in the lower drainage channel (12). The lower end of the drain seat (21) passes through the external thread (212) of the pipe below the lower drainage channel (12) and is connected to the locking nut (24). The lower end of the spring switch (22) is fixed in the drain seat (21). The upper end of the spring switch (22) passes through the drive rod (221) above the upper drainage channel (11) and is connected to the water-stop cover (23).
2. The basin drain structure according to claim 1, characterized in that, Also includes: An intermediate channel (13) is provided between the upper drainage channel (11) and the lower drainage channel (12) for connecting the upper drainage channel (11) and the lower drainage channel (12).
3. The basin drain structure according to claim 2, characterized in that, Also includes: Overflow channel (14) is used to connect the overflow port (15) on the side wall of the basin body (1) with the overflow hole on the side wall of the intermediate channel (13); The overflow channel (14) includes a side wall channel (141) extending along the side wall of the basin body (1) and a bottom wall channel (142) extending along the bottom wall of the basin body (1).
4. The basin drain structure according to claim 3, characterized in that: The inner diameter of the intermediate channel (13) is larger than the inner diameter of the upper drainage channel (11) and the lower drainage channel (12).
5. The basin drain structure according to claim 4, characterized in that, Also includes: A water-stop ring (25) is installed on the annular groove (231) on the water-stop cover (23) to seal the water-stop cover (23) to the inlet (111) of the upper drainage channel (11).
6. The basin drain structure according to claim 5, characterized in that, The waterstop ring (25) includes: An inner ring (25a) is embedded in the annular groove (231) of the water-stop cap (23); an outer ring (25b) extends radially outward on the outer surface of the inner ring (25a) and gradually decreases in thickness.
7. The basin drain structure according to claim 6, characterized in that: The inlet (111) at the upper end of the upper drainage channel (11) is funnel-shaped, which facilitates the rapid discharge of water or liquid from the basin body (1).
8. The basin drain structure according to claim 7, characterized in that: An upper sealing ring (26) is provided between the lower surface of the flange (211) at the upper end of the drain seat (21) and the upper end face of the lower drain channel (12) to seal the upper end of the drain seat (21) and the upper end face of the lower drain channel (12).
9. The basin drain structure according to claim 8, characterized in that: A lower sealing ring (27) is provided between the lower end face of the lower drainage channel (12) and the upper end of the locking nut (24) to seal the drainage seat (21) and the lower end face of the lower drainage channel (12).
10. The basin drain structure according to claim 9, characterized in that: The upper drainage channel (11), middle channel (13), lower drainage channel (12), and overflow channel (14) of the basin body (1) are integrally formed.