Drainage deodorization structure
By using elastic sealing sheets in the drainage and odor-proof structure, the problem of odor-proof performance failure caused by the easy corrosion of torsion springs is solved, achieving a combination of efficient drainage and odor prevention, simplifying the replacement process, and reducing the cost of use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 阮跃辉
- Filing Date
- 2025-08-15
- Publication Date
- 2026-07-21
AI Technical Summary
In existing drainage and odor prevention structures, torsion springs are prone to corrosion and rust, which prevents the cover plate from effectively sealing the outlet and causes the odor prevention performance to fail.
An elastic sealing sheet is used, which uses the impact of water flow to make its movable end tilt up to achieve smooth drainage. When there is no water flow, it is sealed at the opening to prevent odor from escaping, thus eliminating the need for a torsion spring structure.
It extends the odor-proof performance, improves drainage efficiency and sealing effect, reduces usage costs, and has a simple structure that is easy to replace.
Smart Images
Figure CN224531858U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a drainage and odor prevention structure. Background Technology
[0002] Existing drainage and odor-proof structures, such as the odor-proof shell and odor-proof spring-loaded plug disclosed in Chinese Invention Patent CN115538539A, mainly include a peripheral wall portion with openings and outlets at its upper and lower ends. A spring-loaded core is installed inside the peripheral wall portion, with a pressing cover connected to its upper end. By pressing the spring-loaded cover, the spring-loaded core controls the up-and-down movement of the cover, allowing it to open or seal the opening. In addition, a cover plate is rotatably connected to the outlet, with its rotation axis located on the side of the cover plate. A torsion spring is also installed at the rotation axis. When water flows out from the opening and outlet, the water flow impacts the cover plate, causing it to open against the torsion force of the torsion spring. When no water flows through, the torsion force of the torsion spring acts on the cover plate, automatically closing it at the outlet, thus limiting the escape of odors from the sewer and ultimately achieving an odor-proof effect.
[0003] Although the above-mentioned drainage and odor prevention structures can perform basic drainage and odor prevention functions, they use torsion springs to control the opening and closing of the cover. Under long-term water flow, the torsion springs are prone to corrosion and rust, and the torque value will change significantly. Once the torsion spring torque changes, the cover will not be able to seal the outlet tightly, and the odor prevention performance will fail. Utility Model Content
[0004] In view of this, the purpose of this utility model is to provide a drainage and odor-proof structure that can effectively extend the odor-proof performance time.
[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:
[0006] A drainage and odor-proof structure includes an installation body and an elastic sealing sheet. The installation body has a main drain hole, and the elastic sealing sheet has a fixed end and a movable end. The fixed end is fixed to the installation body, and the movable end fits, covers and seals the opening of the main drain hole.
[0007] With the above technical solution, the drainage and odor-proof structure is installed at the drain pipe opening. The elastic sealing sheet is located below the main installation body. When water flows in from the main drain hole, the water flow impacts the elastic sealing sheet, causing the movable end of the elastic sealing sheet to deform and lift up from the opening of the main drain hole, allowing the water to flow out smoothly and achieving smooth drainage. When no water flows in from the main drain hole, the movable end of the elastic sealing sheet will always fit and seal the opening of the main drain hole, thereby limiting the passage of odors in the sewer through the structure and achieving the odor-proof function. The above structure does not require a torsion spring; by using an elastic sealing sheet, the odor-proof performance time is effectively extended.
[0008] Preferably, the mounting body includes an upper top surface and a lower bottom surface. The mounting body also includes a support frame located inside the main drain hole. The support frame arches towards the lower bottom surface away from the upper top surface. A secondary drain hole is provided through the support frame. The elastic sealing sheet fits, covers and seals the opening of the secondary drain hole away from the upper top surface.
[0009] Through the above technical solution, firstly, water flows from the top surface into the main drain hole, and then from the main drain hole into the secondary drain hole. At this time, the support frame arches upwards on the side of the bottom surface away from the top surface, and the entire elastic sealing sheet is tilted, making it easier for water to open the elastic sealing sheet and resulting in smoother drainage. Secondly, the elastic sealing sheet in the tilted state fits more tightly with the opening of the secondary drain hole, resulting in better odor prevention and sealing.
[0010] Preferably, there are four secondary drain holes and four elastic sealing sheets, with each of the four elastic sealing sheets corresponding to and sealing the opening of the secondary drain hole.
[0011] The above technical solution helps improve drainage efficiency with four secondary drainage holes.
[0012] Preferably, the four auxiliary drain holes and the four elastic sealing plates are arranged in a circular array with the center of the main drain hole as the center.
[0013] The above technical solution, with four secondary drain holes evenly arranged and four elastic sealing plates also evenly arranged, can further improve drainage efficiency.
[0014] Preferably, the overall shape of the arched support frame is conical or dome-shaped, with the fixed end located near the bottom of the cone or the bottom of the dome of the support frame, and the movable end located near the top of the cone or the top of the dome of the support frame.
[0015] With the above technical solution, when water flows down from the main drain hole, the top of the support frame is furthest from the main drain hole, and the water flow has the strongest impact on this part. The movable end is located near the top of the cone or the top of the dome of the support frame, making it easier for the water flow to push the movable end open, resulting in higher drainage efficiency. Conversely, if no water flows down from the main drain hole, the elasticity of the elastic sealing sheet and the lateral component of gravity of the movable end of the elastic sealing sheet can be used to achieve a tighter fit between the elastic sealing sheet and the support frame, resulting in better odor prevention.
[0016] Preferably, it also includes an extension cylinder, which is connected between the mounting body and the support frame, and the support frame is located on the side of the lower bottom surface away from the upper top surface.
[0017] Through the above technical solution, on the one hand, after installation, extending the cylinder can increase the distance between the support frame with the auxiliary drain hole and the main body of the installation, thereby avoiding the mud layer in the drain pipe and allowing the support frame with the auxiliary drain hole to be directly located in the PVC pipe below, thus minimizing damage to the main structure of the house; on the other hand, after increasing the distance between the support frame and the main body of the installation, the arching angle of the support frame can be larger, resulting in better odor prevention and drainage.
[0018] Preferably, the mounting body is provided with a slot, and the fixed end is provided with a plug, which is inserted into the slot.
[0019] The above technical solution offers several advantages. First, since the main body of the installation can be made of rigid plastic and the elastic sealing sheet has a certain degree of elasticity, the main body and the elastic sealing sheet can be processed separately. Then, the insert block can be inserted into the slot to achieve a convenient installation connection between the elastic sealing sheet and the main body. Second, if an elastic sealing sheet fails, the user can easily replace the failed elastic sealing sheet and reinstall a new one without replacing the entire main body, effectively reducing the cost of use.
[0020] Preferably, the cross-section of the insert is T-shaped, the small end of the insert is connected to the fixed end, the small end of the insert is inserted into the slot, and the large end of the insert abuts against the top surface of the mounting body.
[0021] The above technical solution balances the ease of installation and stability between the plug and the slot.
[0022] Preferably, it also includes a mounting panel, the mounting panel having mounting holes, the mounting holes having flanged steps, the mounting body being installed in the mounting holes and abutting against the flanged steps;
[0023] It also includes a filter assembly, which is installed in the mounting hole and located on the side of the mounting body away from the flange step.
[0024] With the above technical solution, the mounting panel can be installed on the ground first, and then the mounting body can be installed in the mounting hole and abutted against the flanged step, resulting in high installation stability. The filter assembly not only produces a filtration effect, but also presses the mounting body into the mounting hole, further improving the installation stability of the mounting body.
[0025] Preferably, the filter assembly includes a filter body and a handle. The filter body is located on the side of the mounting body away from the flanged step, and the handle is mounted on the filter body.
[0026] With the above technical solution, the user can apply force to the handle, and the handle will pull the filter body out of the mounting hole, thus making it easy to remove debris from the filter body. Attached Figure Description
[0027] Figure 1 This is a schematic diagram of the installation structure in Example 1. Figure 1 ;
[0028] Figure 2 This is a schematic diagram of the installation structure in Example 1. Figure 2 ;
[0029] Figure 3 Structural breakdown of Example 1 Figure 1 ;
[0030] Figure 4 Structural breakdown of Example 1 Figure 2 ;
[0031] Figure 5 This is a schematic cross-sectional view of the mounting body after it is installed in the mounting hole in Embodiment 1.
[0032] Figure 6 This is a schematic diagram of the installation structure in Example 2;
[0033] Figure 7 This is an exploded view of the structure of Example 2;
[0034] Figure 8 This is a schematic cross-sectional view of the mounting body after it is installed in the mounting hole in Example 2.
[0035] Reference numerals: 1. Mounting body; 11. Top surface; 12. Bottom surface; 2. Main drain hole; 3. Elastic sealing sheet; 31. Fixed end; 32. Movable end; 4. Support frame; 5. Secondary drain hole; 6. Slot; 7. Insert block; 8. Mounting panel; 9. Flanged step; 10. Filter screen assembly; 101. Filter screen body; 102. Handle; 13. Extension cylinder; 14. Mounting hole. Detailed Implementation
[0036] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, so that the technical solution of this utility model can be more easily understood and mastered. Example 1:
[0037] A drainage and odor prevention structure includes an installation body 1, on which a main drain hole 2 is provided.
[0038] The mounting body 1 includes an upper top surface 11 and a lower bottom surface 12. The mounting body 1 also includes a support frame 4 located within the main drain hole 2. The support frame 4 arches towards the lower bottom surface 12 on the side opposite to the upper top surface 11. A secondary drain hole 5 is provided through the support frame 4. An elastic sealing sheet 3 is also provided. The elastic sealing sheet 3 can be made of elastic rubber and has a fixed end 31 and a movable end 32. The fixed end 31 is fixed to the mounting body 1, and the movable end 32 of the elastic sealing sheet 3 can fit and cover the opening of the secondary drain hole 5 opposite to the upper top surface 11, sealing it.
[0039] The number of auxiliary drain holes 5 can be one, two, three, four or more, with four being the most preferred. Correspondingly, there are also four elastic sealing plates 3, each corresponding to and sealing the opening of one of the auxiliary drain holes 5. The four auxiliary drain holes 5 and the four elastic sealing plates 3 are arranged in a circular array with the center of the main drain hole 2 as the center.
[0040] The arched support frame 4 is formed into a cone or dome shape. The fixed end 31 is located near the bottom of the cone or the bottom of the dome of the support frame 4, and the movable end 32 is located near the top of the cone or the top of the dome of the support frame 4.
[0041] To improve the connection between the elastic sealing sheet 3 and the mounting body 1, the mounting body 1 is provided with a slot 6, and the fixed end 31 is provided with a plug 7, which is inserted into the slot 6. The plug 7 has a T-shaped cross-section, with the small end of the plug 7 connected to the fixed end 31 and inserted into the slot 6, while the large end of the plug 7 abuts against the top surface 11 of the mounting body 1.
[0042] It also includes a mounting panel 8, which has a mounting hole 14 and a flanged step 9 inside the mounting hole 14. The mounting body 1 is installed inside the mounting hole 14 and abuts against the flanged step 9.
[0043] Additionally, a filter assembly 10 is included, which is installed within the mounting hole 14 and located on the side of the mounting body 1 away from the flanged step 9. The filter assembly 10 includes a filter body 101 and a handle 102. The filter body 101 is located on the side of the mounting body 1 away from the flanged step 9, and the handle 102 is mounted on the filter body 101.
[0044] To further improve the overall installation stability and sealing performance, an O-ring can be installed on the side of the filter body 101. When the filter body 101 is installed into the mounting hole 14, the O-ring will be squeezed between the filter body 101 and the mounting hole 14. At this time, the filter body 101 can be stably installed in the mounting hole 14, and the gap between the filter body 101 and the mounting hole 14 has a strong sealing performance.
[0045] Example 2: The difference from Example 1 is as follows:
[0046] An extension cylinder 13 is also provided, which connects the mounting body 1 and the support frame 4. The support frame 4 is located on the side of the lower bottom surface 12 away from the upper top surface 11.
[0047] Of course, the above are just typical examples of this utility model. In addition, this utility model may have many other specific implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by this utility model.
Claims
1. A drainage and odor-proof structure, comprising an installation body (1), characterized in that: It also includes an elastic sealing sheet (3). The mounting body (1) is provided with a main drain hole (2). The elastic sealing sheet (3) is provided with a fixed end (31) and a movable end (32). The fixed end (31) is fixed to the mounting body (1), and the movable end (32) fits, covers and seals the opening of the main drain hole (2).
2. The drainage and odor-proof structure according to claim 1, characterized in that: The mounting body (1) includes an upper top surface (11) and a lower bottom surface (12). The mounting body (1) also includes a support frame (4) located inside the main drain hole (2). The support frame (4) arches towards the lower bottom surface (12) away from the upper top surface (11). A secondary drain hole (5) is provided through the support frame (4). The elastic sealing sheet (3) fits, covers and seals the opening of the secondary drain hole (5) away from the upper top surface (11).
3. The drainage and odor-proof structure according to claim 2, characterized in that: The number of the auxiliary drain holes (5) is four, and the number of the elastic sealing pieces (3) is four. The four elastic sealing pieces (3) are respectively covered and sealed at the opening of the auxiliary drain holes (5).
4. The drainage and odor-proof structure according to claim 3, characterized in that: The four auxiliary drain holes (5) and the four elastic sealing plates (3) are arranged in a circular array with the center of the main drain hole (2) as the center.
5. The drainage and odor-proof structure according to claim 2, characterized in that: The overall shape of the arched support frame (4) is conical or dome-shaped. The fixed end (31) is located near the bottom of the cone or the bottom of the dome of the support frame (4), and the movable end (32) is located near the top of the cone or the top of the dome of the support frame (4).
6. The drainage and odor-proof structure according to claim 2, characterized in that: It also includes an extension cylinder (13), which is connected between the mounting body (1) and the support frame (4), and the support frame (4) is located on the side of the lower bottom surface (12) away from the upper top surface (11).
7. A drainage and odor-proof structure according to any one of claims 1-6, characterized in that: The mounting body (1) is provided with a slot (6), and the fixed end (31) is provided with a plug (7), which is inserted into the slot (6).
8. The drainage and odor-proof structure according to claim 7, characterized in that: The cross-section of the insert (7) is T-shaped. The small end of the insert (7) is connected to the fixed end (31). The small end of the insert (7) is inserted into the slot (6). The large end of the insert (7) abuts against the top surface (11) of the mounting body (1).
9. A drainage and odor-proof structure according to any one of claims 1-6, characterized in that: It also includes a mounting panel (8), which has mounting holes (14) and flanged steps (9) inside the mounting holes (14). The mounting body (1) is installed inside the mounting holes (14) and abuts against the flanged steps (9). It also includes a filter assembly (10), which is installed in the mounting hole (14) and is located on the side of the mounting body (1) away from the flange step (9).
10. A drainage and odor-proof structure according to claim 9, characterized in that: The filter assembly (10) includes a filter body (101) and a handle (102). The filter body (101) is located on the side of the mounting body (1) away from the flanged step (9), and the handle (102) is mounted on the filter body (101).