Double-layer water seal floor drain

Abstract

The utility model relates to the technical field of bathroom equipment, in particular to a double-layer water seal floor drain which comprises a floor drain shell, a water seal assembly and a floor drain cover, a connecting sleeve used for installing the water seal assembly is further arranged in the floor drain shell, the water seal assembly is installed in the connecting sleeve, and the floor drain cover is arranged on the floor drain shell. The outer wall of the connecting sleeve abuts against the inner wall of the floor drain shell, and the floor drain cover covers the upper portion of the water seal assembly and is fixedly connected with the floor drain shell in a clamped mode. The floor drain has the advantages that the problem that sealing between the floor drain and a pipeline is not tight is solved, and the sealing performance of the floor drain is improved.

Description

Technical Field

[0001] The present application relates to the technical field of bathroom equipment, and in particular to a double-layer water-sealed floor drain. Background Art

[0002] Floor drain is a common bathroom facility, widely used in residential, commercial and public places. It is mainly used for drainage and exhaust, to prevent sewage backflow and odor diffusion, and to maintain a sanitary environment.

[0003] The national standard for sewer pipes stipulates different pipe diameters to meet the needs of different drainage facilities. Existing floor drains are usually designed as round pipe structures that match the inner diameter of the pipe. However, there will inevitably be an assembly gap between the inner wall of the pipe and the outer wall of the floor drain shell during assembly. Therefore, during the installation process, there may be a loose seal, resulting in water leakage or odor return. Utility Model Content

[0004] In order to improve the problem of poor sealing between a floor drain and a pipe and enhance the sealing performance of the floor drain, the present application provides a double-layer water-sealed floor drain.

[0005] The present application provides a double-layer water-sealed floor drain, which adopts the following technical solution:

[0006] A water seal structure comprises a floor drain shell, a water seal assembly and a floor drain cover. A connecting sleeve for installing the water seal assembly is further provided in the floor drain shell. The water seal assembly is installed in the connecting sleeve. The outer wall of the connecting sleeve abuts against the inner wall of the floor drain shell. The floor drain cover covers the water seal assembly and is clamped and fixed to the floor drain shell.

[0007] By adopting the above technical solution, the floor drain shell is used to install the water seal assembly and is also used to connect with the pipeline, and the floor drain cover covers the floor drain. The setting of the connecting sleeve can facilitate the user to install the water seal assembly into the floor drain shell, and the connecting sleeve also has the effect of sealing the assembly gap between the water seal assembly and the floor drain shell, thereby improving the problem of loose sealing between the floor drain and the pipeline and improving the sealing of the floor drain.

[0008] Furthermore, the floor drain shell includes a first shell and a second shell, the inner wall of the first shell is provided with a placement ring groove for the floor drain cover to be inserted into, the first shell has a water seal ring groove for storing water, the second shell is fixedly connected to the inner wall of the first shell, the interior of the second shell is communicated with the water seal ring groove, and the lower end of the second shell protrudes from the first shell for insertion into the pipe.

[0009] By adopting the above technical solution, the first shell is installed with a water seal assembly, and the inner wall of the first shell is provided with a placement ring groove, and the floor drain cover achieves a clamping effect with the floor drain shell by placing the ring groove. The first shell has a water seal ring groove, and water flows into the water seal ring groove to form a water seal effect for the floor drain. The second shell can be inserted into the pipeline, and the water is discharged into the sewer pipe through the matching setting between the first shell and the second shell. At the same time, the effect of preventing odor from returning is achieved through the water seal assembly, thereby improving the problem of loose sealing between the floor drain and the pipeline and improving the sealing of the floor drain.

[0010] Furthermore, the water seal assembly includes a shell, a sealing cap and a reset structure, the shell has a temporary storage tank for temporarily storing water, a water outlet is provided at the bottom of the shell, and the water outlet is communicated with the temporary storage tank;

[0011] The reset structure is installed in the shell, the sealing cap is arranged on a side of the shell away from the floor drain cover, and the reset structure drives the sealing cap to approach or move away from the shell to control the opening and closing of the water outlet.

[0012] By adopting the above technical solution, the outer shell has a temporary storage groove. When the water level in the water seal ring groove gradually rises, water flows into the outer shell and enters the temporary storage groove to form a second water seal structure. The sealing cap is retracted and extended under the outer shell through the telescopic rod and the connecting pipe. When the water level in the temporary storage groove rises, the sealing cap covering the bottom of the outer shell is flushed open due to the gravity of the water. After the water in the temporary storage groove flows out from the water outlet, the sealing cap is reset by the reset structure and abuts against the bottom of the outer shell again to close the water outlet.

[0013] Further, the reset structure includes a connecting tube, a telescopic rod and a reset member, the connecting tube is fixedly connected to the housing and is located in the temporary storage groove, the telescopic rod is slidably installed in the connecting tube, one end of the telescopic rod away from the connecting tube passes through the housing and is fixedly connected to the sealing cap, and the reset member is arranged at one end of the telescopic rod away from the sealing cap to drive the telescopic rod to reset;

[0014] When the telescopic rod is completely retracted into the connecting pipe, the sealing cap and the outer shell abut against each other to close the water outlet.

[0015] By adopting the above technical solution, the resetting effect of the resetting member drives the telescopic rod to return to its initial position after extending out of the connecting pipe, preventing the sealing cap from falling and causing the water in the temporary storage tank to flow out, thereby improving the sealing effect of the water seal structure, improving the problem of loose sealing between the floor drain and the pipeline, and improving the sealing of the floor drain.

[0016] Furthermore, an end plate for breaking gas pressure is provided on a side of the sealing cap away from the shell.

[0017] By adopting the above technical solution, the setting of the end plate can break the gas pressure in the pipeline through its own structure, prevent the gas from rising up and causing the sealing cap to be unable to retract normally on the outer shell, and also prevent the floor drain from being blocked or even water accumulation on the floor.

[0018] Furthermore, the floor drain cover includes a top cover and a curved drainage cover, the top cover is provided with a water inlet, the curved drainage cover is arranged on a side of the top cover close to the floor drain shell, and the curved drainage cover is coaxially arranged with the top cover and fixedly connected.

[0019] By adopting the above technical solution, a water inlet is opened on the top cover for ground water to flow into the floor drain. The arc drainage cover is arranged under the top cover to guide the water flow and introduce the water into the water seal ring groove.

[0020] Furthermore, a covering ring plate is extended from one side of the arc surface drainage cover toward the water seal assembly. When the top cover is inserted into the placement ring groove, the covering ring plate is located in the water seal ring groove to cover the water seal assembly. A gap for water to pass through is left between the end surface of the covering ring plate away from the arc surface drainage cover and the water seal ring groove.

[0021] By adopting the above technical scheme, the covering ring plate is extended from the curved drainage cover, and the covering ring plate can be extended into the water seal ring groove to cover the water seal assembly, which can not only ensure the interconnection between the water seal ring groove and the temporary storage groove, but also improve the sealing effect of the water seal structure, improve the problem of poor sealing between the floor drain and the pipeline, and improve the sealing of the floor drain.

[0022] Furthermore, a snap ring groove is provided on the outer wall of the shell, and a convex ridge for snapping into the snap ring groove is provided on the inner wall of the connecting sleeve.

[0023] By adopting the above technical solution, a clamping ring groove is provided on the outer shell of the water seal assembly, and a convex ridge is provided on the inner wall of the connecting sleeve. The clamping ring groove and the convex ridge are matched to achieve a clamping and fixing effect between the outer shell and the connecting sleeve, which improves the installation stability between the water seal assembly and the floor drain shell, improves the problem of loose sealing between the floor drain and the pipeline, and improves the sealing of the floor drain.

[0024] Furthermore, the pipe wall of the connecting sleeve on one side close to the floor drain cover is arranged to be inclined outward, and the first shell is provided with an inclined guiding surface for the connecting sleeve to be inserted into.

[0025] By adopting the above technical solution, the connecting sleeve is inclined outwardly close to the pipe wall on one side of the floor drain cover, and an inclined guide surface is provided on the first shell. The connecting sleeve abuts against the inclined guide surface to achieve a pre-fixing effect with the first shell, which facilitates the installation of the water seal assembly and prevents the water seal assembly from sliding deep into the pipeline, which is beneficial to improving the problem of poor sealing between the floor drain and the pipeline and improving the sealing of the floor drain.

[0026] Furthermore, the second shell protrudes from the outer wall of the first shell portion and is sleeved and fixedly connected with an abutment tube, and the outer wall of the abutment tube is tightly pressed against the inner wall of the pipeline to seal the assembly gap.

[0027] By adopting the above technical solution, an abutment tube is sleeved on the outside of the second shell, and the outer wall of the abutment tube and the inner wall of the pipe can abut each other, thereby filling the assembly gap between the floor drain and the pipe, improving the problem of poor sealing between the floor drain and the pipe, and improving the sealing of the floor drain.

[0028] In summary, the present application includes at least one of the following beneficial technical effects:

[0029] 1. The floor drain shell is used to install the water seal assembly and is also used to connect with the pipeline. The floor drain cover covers the floor drain. The setting of the connecting sleeve makes it easier for the user to install the water seal assembly into the floor drain shell. At the same time, the connecting sleeve also seals the assembly gap between the water seal assembly and the floor drain shell, thereby improving the problem of loose sealing between the floor drain and the pipeline and improving the sealing of the floor drain;

[0030] 2. The water seal ring groove of the first shell allows water to flow in, forming a water seal effect for the floor drain. The second shell can be inserted into the pipeline, and the water is discharged into the sewer pipe through the cooperation between the first shell and the second shell. At the same time, the water seal component can prevent odor from returning, improve the problem of loose sealing between the floor drain and the pipeline, and improve the sealing of the floor drain;

[0031] 3. The outer shell has a temporary storage groove. When the water level in the water seal ring groove gradually rises, water flows into the outer shell and enters the temporary storage groove to form a second water seal structure. The double-layer water seal structure improves the problem of loose sealing between the floor drain and the pipeline, thereby improving the sealing of the floor drain. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of a double-layer water-sealed floor drain in an embodiment of the present application.

[0033] Figure 2 It is a cross-sectional schematic diagram of a double-layer water-sealed floor drain according to an embodiment of the present application.

[0034] Figure 3 It is a schematic cross-sectional view of the floor drain shell in the embodiment of the present application.

[0035] Figure 4 It is a schematic diagram of the overall structure of the water seal assembly in the embodiment of the present application.

[0036] Figure 5 It is a schematic cross-sectional view of the water seal assembly in the embodiment of the present application.

[0037] Figure 6 It is a schematic diagram of the structure of the sealing cap covering the outer shell in the embodiment of the present application.

[0038] Figure 7 It is a schematic diagram of the structure in which the sealing cap is separated from the outer shell in an embodiment of the present application.

[0039] Figure 8 yes Figure 2 An enlarged schematic diagram of the structure of the first shell and the connecting sleeve in part A.

[0040] Explanation of the reference numerals: 1. floor drain shell; 11. first shell; 111. placement ring groove; 112. water seal ring groove; 113. inclined guide surface; 12. second shell; 13. abutment tube; 2. water seal assembly; 21. outer shell; 211. temporary storage groove; 212. water outlet; 213. snap-on ring groove; 22. sealing cap; 221. end plate; 23. reset structure; 231. connecting pipe; 232. telescopic rod; 233. reset member; 2331. first magnetic block; 2332. second magnetic block; 3. floor drain cover; 31. top cover; 311. water inlet; 32. arc drainage cover; 33. cover ring plate; 4. connecting sleeve; 41. convex ring; 42. snap-on convex ridge. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solutions and advantages of this application more clear, the following Figure 1-8 And embodiments, the present application is further described in detail.

[0042] The embodiment of the present application discloses a double-layer water-sealed floor drain. The words such as "upper" and "lower" used to express the positional relationship in the embodiment are determined with reference to the placement and installation position of the double-layer water-sealed floor drain in a normal use state.

[0043] Example 1

[0044] Reference Figure 1 and Figure 2 The double-layer water-seal floor drain includes a floor drain shell 1, a water seal assembly 2, a floor drain cover 3 and a connecting sleeve 4. The water seal assembly 2 is installed in the floor drain shell 1, the floor drain cover 3 is snapped onto the floor drain shell 1, and the connecting sleeve 4 is sleeved on the outside of the water seal assembly 2 to facilitate the installation of the water seal assembly 2 into the floor drain shell 1.

[0045] The floor drain housing 1 in this embodiment includes a first housing 11 and a second housing 12. Both the first housing 11 and the second housing 12 are circular tube structures, and the diameter of the first housing 11 is larger than that of the second housing 12. The second housing 12 is fixedly connected to the lower part of the first housing 11. The tube wall at the lower end of the first housing 11 is bent inward to form a water seal ring groove 112 for water storage. The inner wall of the first housing 11 away from the end of the second housing 12 is provided with a placement ring groove 111 for the floor drain cover 3 to be inserted and placed.

[0046] Reference Figure 3 The lower end of the second shell 12 protrudes from the lower end of the first shell 11 for insertion into the sewer pipe. The second shell 12 protrudes from the first part and a butt tube 13 is sleeved on the outer wall. The butt tube 13 is fixedly connected to the second shell 12. The outer tube wall of the butt tube 13 and the inner wall of the pipe are tightly pressed against each other to close the assembly gap between the floor drain and the sewer pipe.

[0047] The connecting sleeve 4 is arranged with its pipe wall close to one side of the floor drain cover 3 tilted outward, and the pipe wall of the first shell 11 is bent inward to form an inclined guide surface 113. The connecting sleeve 4 abuts against the inclined guide surface 113 of the first shell 11 through the inclined pipe wall to form a pre-fixing effect to prevent the connecting sleeve 4 from slipping into the deep of the pipeline. After the connecting sleeve 4 and the first shell 11 are pre-fixed, the operator can fix the connecting sleeve 4 and the first shell 11 by other fixing connection methods such as welding or threaded fixing.

[0048] Reference Figure 4 and Figure 5 The water seal assembly 2 includes a housing 21, a sealing cap 22, a connecting pipe 231, a telescopic rod 232 and a reset member 233. In this embodiment, a snap ring groove 213 cooperating with the connecting sleeve 4 is provided on the outer wall of the housing 21, and a convex ring 41 is provided on the inner wall of the connecting sleeve 4. The connecting sleeve 4 is snapped into the snap ring groove 213 by the convex ring 41 to achieve snap connection and fixation with the housing 21. The connection method between the housing 21 of the water seal assembly 2 and the connecting sleeve 4 can be selected according to actual conditions, such as threaded fixing or other fixed connection methods.

[0049] The housing 21 has a temporary storage tank 211 for temporarily storing water supply, and a water outlet 212 for water supply outflow is provided on the plate body at the bottom of the housing 21. The connecting pipe 231 is vertically fixedly connected to the central axis position of the upper plate body of the housing 21 and is located in the temporary storage tank 211. The telescopic rod 232 is slidably installed in the connecting pipe 231, and the lower end of the connecting pipe 231 and the upper end of the telescopic rod 232 are provided with a limiting structure to prevent the telescopic rod 232 from falling out. The lower end of the telescopic rod 232 passes through the housing 21 for connecting the sealing cap 22. The telescopic rod 232 and the sealing cap 22 are perpendicular to each other, and the center position of the sealing cap 22 is fixedly connected to the end of the telescopic rod 232. When the sealing cap 22 abuts against the bottom of the housing 21, the water outlet 212 can be closed.

[0050] Reference Figure 2 and Figure 5 The reset member 233 includes a first magnetic block 2331 and a second magnetic block 2332 that can be attracted to each other. The first magnetic block 2331 is fixedly connected to the upper end of the telescopic rod 232 and is located in the connecting tube 231. The second magnetic block 2332 is arranged in the connecting tube 231 at one end away from the sealing cap 22. The sealing cap 22 is flushed away from the bottom of the housing 21 by water, and drives the telescopic rod 232 to fall. After the water in the temporary storage tank 211 is discharged, the second magnetic block 2332 attracts the first magnetic block 2331 to make the telescopic rod 232 return to the initial position, and drives the sealing cap 22 to abut against the bottom of the housing 21, and re-closes the water outlet 212.

[0051] Reference Figure 2 and Figure 3 The floor drain cover 3 includes a top cover 31 and a curved drainage cover 32. The edge of the top cover 31 is inserted into the placement ring groove 111 of the first shell 11. The curved drainage cover 32 is coaxially arranged with the top cover 31, and the curved drainage cover 32 is fixedly connected to the bottom of the top cover 31. A cover ring plate 33 is extended from the lower side of the curved drainage cover 32 into the water seal ring groove 112, and the cover ring plate 33 and the top plate are perpendicular to each other. When the top cover 31 is inserted into the placement ring groove 111, the cover ring plate 33 is located in the water seal ring groove 112 to cover the water seal assembly 2, and a gap for water to pass through is left between the end surface of the cover ring plate 33 away from the curved drainage cover 32 and the water seal ring groove 112.

[0052] Reference Figure 6 and Figure 7 A V-shaped end plate 221 is fixedly connected to the bottom of the sealing cap 22. When the gas pressure in the pipeline is too high, the sealing cap 22 may be supported and drainage cannot be performed. The setting of the V-shaped end plate 221 can break the gas pressure and ensure the normal expansion and contraction of the sealing cap 22 under the outer shell 21.

[0053] The implementation principle of a double-layer water-seal floor drain in an embodiment of the present application is as follows: the connecting sleeve 4 is welded and fixed in the floor drain shell 1, and the outer shell 21 of the water seal assembly 2 is clamped and fixed with the connecting sleeve 4. The first shell 11 of the floor drain shell 1 has a water seal ring groove 112, forming a first layer of water seal structure for the floor drain. The second shell 12 of the floor drain shell 1 is inserted into the sewer pipe and fills the assembly gap through the abutment tube 13. When the sealing cap 22 of the water seal assembly 2 is pressed against the bottom of the outer shell 21, water is retained in the temporary storage groove 211, forming a second layer of water seal structure for the floor drain. The sealing cap 22 of the water seal assembly 2 realizes a telescopic effect on the outer shell 21 through a reset assembly, thereby controlling the opening and closing of the water outlet 212, and sealing or discharging the water in the temporary storage groove 211.

[0054] Example 2

[0055] The difference between this embodiment and embodiment 1 is that the welding fixation method between the connecting sleeve 4 and the inner wall of the pipeline is optimized to be a detachable connection. Figure 8 The water seal assembly 2 is fixed by clamping with the convex ring 41 of the connecting sleeve 4 through the clamping ring groove 213 of the shell 21. The outer wall of the connecting sleeve 4 is provided with a clamping ridge 42, which can form a clamping and fixing effect with the first shell 11. Compared with the welding fixing method, the clamping fixing facilitates the disassembly and assembly of the connecting sleeve 4, which is beneficial to the later maintenance of the floor drain.

[0056] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A double-layer water-sealed floor drain, characterized in that: The invention comprises a floor drain shell (1), a water seal assembly (2) and a floor drain cover (3); a connecting sleeve (4) for installing the water seal assembly (2) is further arranged in the floor drain shell (1); the water seal assembly (2) is installed in the connecting sleeve (4); the outer wall of the connecting sleeve (4) and the inner wall of the floor drain shell (1) are in contact with each other; the floor drain cover (3) covers the top of the water seal assembly (2) and is fixedly connected to the floor drain shell (1) by clamping.

2. A double-layer water-sealed floor drain according to claim 1, characterized in that: The floor drain shell (1) comprises a first shell (11) and a second shell (12); the inner wall of the first shell (11) is provided with a placement ring groove (111) for the floor drain cover (3) to be inserted into; the first shell (11) has a water seal ring groove (112) for water to be stored in; the second shell (12) is fixedly connected to the inner wall of the first shell (11); the interior of the second shell (12) and the water seal ring groove (112) are communicated with each other; the lower end of the second shell (12) protrudes from the first shell (11) for being inserted into a pipeline.

3. A double-layer water-sealed floor drain according to claim 2, characterized in that: The water seal assembly (2) comprises a housing (21), a sealing cap (22) and a reset structure (23); the housing (21) has a temporary storage tank (211) for temporarily storing water; a water outlet (212) is provided at the bottom of the housing (21); the water outlet (212) and the temporary storage tank (211) are in communication with each other; The reset structure (23) is installed in the outer shell (21), and the sealing cap (22) is arranged on a side of the outer shell (21) away from the floor drain cover (3). The reset structure (23) drives the sealing cap (22) to move closer to or away from the outer shell (21) to control the opening and closing of the water outlet (212).

4. A double-layer water-sealed floor drain according to claim 3, characterized in that: The reset structure (23) comprises a connecting tube (231), a telescopic rod (232) and a reset member (233); the connecting tube (231) is fixedly connected to the outer shell (21) and is located in the temporary storage tank (211); the telescopic rod (232) is slidably installed in the connecting tube (231); one end of the telescopic rod (232) away from the connecting tube (231) passes through the outer shell (21) and is fixedly connected to the sealing cap (22); the reset member (233) is arranged at one end of the telescopic rod (232) away from the sealing cap (22) to drive the telescopic rod (232) to reset; When the telescopic rod (232) is completely retracted into the connecting pipe (231), the sealing cap (22) and the outer shell (21) abut against each other to close the water outlet (212).

5. A double-layer water-sealed floor drain according to claim 4, characterized in that: An end plate (221) for breaking gas pressure is provided on a side of the sealing cap (22) away from the outer shell (21).

6. A double-layer water-sealed floor drain according to claim 2, characterized in that: The floor drain cover (3) comprises a top cover (31) and a curved drainage cover (32); a water inlet (311) is provided on the top cover (31); the curved drainage cover (32) is arranged on a side of the top cover (31) close to the floor drain shell (1); the curved drainage cover (32) and the top cover (31) are coaxially arranged and fixedly connected.

7. A double-layer water-sealed floor drain according to claim 6, characterized in that: A cover ring plate (33) is provided on one side of the curved drainage cover (32) extending toward the water seal assembly (2); when the top cover (31) is inserted into the placement ring groove (111), the cover ring plate (33) is located in the water seal ring groove (112) to cover the water seal assembly (2); a gap for water to pass through is left between the end surface of the cover ring plate (33) away from the curved drainage cover (32) and the water seal ring groove (112).

8. A double-layer water-sealed floor drain according to claim 3, characterized in that: A snap ring groove (213) is provided on the outer wall of the housing (21), and a ridge for snapping into the snap ring groove (213) is provided on the inner wall of the connecting sleeve (4).

9. A double-layer water-sealed floor drain according to claim 8, characterized in that: The pipe wall of the connecting sleeve (4) close to the floor drain cover (3) is arranged to be inclined outwards, and the first shell (11) is provided with an inclined guide surface (113) for the connecting sleeve (4) to be inserted.

10. A double-layer water-sealed floor drain according to claim 2, characterized in that: The second shell (12) is sleeved on the outer wall of the portion protruding from the first shell (11) and is fixedly connected to a butt tube (13), the outer wall of the butt tube (13) being tightly pressed against the inner wall of the pipeline to seal the assembly gap.

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