Secondary filter type odor preventing drain

Abstract

The utility model relates to the technical field of bathroom drainage equipment discloses a secondary filtration deodorization type water drainer, including fixer, filter mechanism and fixed establishment, fixer outer wall fixedly connected with rubber ring no.

Description

Technical Field

[0001] This utility model relates to the field of bathroom drainage equipment technology, and in particular to a secondary filtration odor-proof drain. Background Technology

[0002] In everyday bathroom fixtures such as washbasins and kitchen sinks, the drain is a key component connecting the water container to the sewer system. The drain not only discharges wastewater but also plays a crucial role in preventing odors and pests from returning to the room. Currently, most drains on the market use a single-layer spring-loaded core structure, where users press the top spring-loaded cover to fill or drain water. However, this single sealing method has significant limitations. Since the spring-loaded core is mainly used to control water storage in the basin, if the user forgets to press it again after draining, or if the sealing ring around the spring-loaded core wears out, odors, bacteria, and pests such as cockroaches from the sewer will flow unimpeded into the room, seriously affecting the hygiene of the living environment and the health of the user.

[0003] To address the aforementioned issues, some existing technologies attempt to add a self-sealing valve at the bottom of the drain that opens and closes using gravity or magnetism. While this design theoretically adds an extra layer of protection, in actual use, domestic sewage often contains solid impurities such as hair and food scraps. The existing straight-through structure allows these impurities to flow directly to the self-sealing valve at the bottom, making them prone to getting stuck on the valve's pivot or sealing opening. This prevents the valve from closing properly. Once the self-sealing structure at the bottom fails due to debris, and the top spring-loaded core is in the open position, the entire drain's odor-proof function is completely lost. Therefore, existing technologies lack a drainage device that can provide both manual and automatic dual sealing protection and effectively prevent impurities from damaging the bottom sealing structure.

[0004] Therefore, this utility model proposes a secondary filtration odor-proof drain cleaner to address the shortcomings of the existing technology. Utility Model Content

[0005] In view of the problems in the existing technology of drainers, such as poor odor and insect prevention due to the single sealing structure and the failure of the bottom sealing structure due to the blockage of debris in domestic sewage, the present invention aims to provide a secondary filtration odor-proof drainer with an improved structure that can effectively solve the above problems.

[0006] This utility model provides a secondary filtration odor-proof drain cleaner, including: a fixture, a filter mechanism, and a fixing mechanism. A rubber ring (part of the fixing mechanism) is fixedly connected to the outer wall of the fixture. A limiting plate (part of the fixing mechanism) is fixedly connected to the bottom of the inner wall of the fixture. A spring-loaded core (part of the filter mechanism) is slidably connected to the inner wall of the fixture. A locking plate (part of the fixing mechanism) is fixedly connected to the outer wall of the spring-loaded core. The limiting plate is located below the locking plate and abuts against it. A second rubber ring (part of the fixing mechanism) is fixedly connected to the top of the outer wall of the spring-loaded core. The bottom of the spring-loaded core is threadedly connected to a (part of the fixing mechanism) fixing thread (part of the fixing mechanism). The buffer of the fixed mechanism has a connector belonging to the filter mechanism fixedly connected to the bottom outer wall of the fixed device. The fixed device is threadedly connected to the filter mechanism via the connector to a fixed thread one. The bottom of the fixed thread one is fixedly connected to the filter mechanism to a fixed thread two. The filter mechanism is threadedly connected to the filter mechanism via the fixed thread one and the fixed thread two. The top of the outer wall of the fixed thread one is fixedly connected to the connector belonging to the filter mechanism. The equipment housing belonging to the filter mechanism is threadedly connected to the fixed thread one via the connector. The equipment housing is set on the outer periphery of the filter. The bottom of the equipment housing is rotatably connected to the isolation plate belonging to the filter mechanism.

[0007] The filtration mechanism and the fixing mechanism are combined through multi-level threaded and sliding fits. The filter is set inside the equipment housing and located upstream of the isolation plate. The second rubber ring cooperates with the inner wall of the fixing device to form the first seal, and the isolation plate cooperates with the bottom of the equipment housing to form the second seal.

[0008] Furthermore, the fixture, spring core, filter, and isolation plate are combined in a coaxial series layout. The water flow path passes through the fixture, buffer, fixing thread 1, filter, equipment housing, and isolation plate in sequence, thereby ensuring smooth drainage while achieving impurity interception and dual odor prevention functions.

[0009] Preferably, the bouncy core has a spring structure inside, and the bouncy core and the retainer form a press-type opening and closing cooperation through the spring structure. This structure allows the user to control the opening and closing of the upper drain outlet through a simple pressing action.

[0010] Preferably, a rubber ring is set on the outer circumference of the fixture, the outer diameter of the rubber ring is set to be larger than the outer diameter of the fixture, and the rubber ring is configured to form an interference fit with the inner wall of the external drainage pipe, so as to use the elastic deformation of the rubber material to provide friction to achieve stable installation of the device in the pipe.

[0011] Preferably, the buffer is located above the internal flow channel of the fixed thread, and the surface of the buffer is provided with a guide slope for dispersing the water flow. The guide slope can disperse and guide the vertically falling water flow in all directions, thereby reducing the direct impact of the water flow pressure on the lower components and optimizing the fluid path.

[0012] Preferably, the filter is located below the fixing thread and is completely inside the internal cavity of the equipment housing. The filter is located above the isolation plate. This positional relationship ensures that all water flowing towards the isolation plate has been filtered, effectively preventing hair and other debris from getting tangled or stuck in the isolation plate.

[0013] Preferably, a torsion spring reset component is provided at the connection between the isolation plate and the equipment shell. The isolation plate remains closed by the torsion spring reset component when no external force is applied, thereby blocking the water outlet at the bottom of the equipment shell. The mechanical rebound force is used to achieve automatic sealing and odor prevention in the absence of water.

[0014] Preferably, the inner wall of the connector is provided with an internal thread, and the outer wall of the bottom of the retainer and the outer wall of the top of the fixing thread are both provided with external threads that are compatible with the connector. This connection method facilitates the quick assembly, disassembly and maintenance of the components.

[0015] Preferably, the second fixing thread has a ring-shaped structure, the inner wall of the second fixing thread is provided with threads to connect the filter, and the outer wall of the second fixing thread is fixedly connected to the bottom of the first fixing thread, serving as an intermediate connector to stably support the filter.

[0016] This utility model has the following beneficial effects:

[0017] 1. This utility model solves the technical problem that the existing drain seal structure is simple and difficult to completely block the odor from the sewer and the return of pests to the room. It achieves a secondary odor prevention effect by providing a dual physical barrier of manual water sealing at the top and automatic odor prevention at the bottom of the device by setting a spring core with a rubber ring, and setting an isolation plate that closes automatically by a reset mechanism at the bottom of the device.

[0018] 2. This utility model solves the technical problem of existing self-sealing drainers easily failing to seal due to hair and solid residue entering the odor-proof mechanism and jamming the valve by setting a filter covered by the equipment shell in the middle of the flow channel and upstream of the isolation plate. It achieves the effect of effectively intercepting impurities in the drainage process, thereby protecting the bottom isolation plate from foreign object interference and ensuring that the isolation plate can accurately reset and close to maintain a long-term stable odor-proof effect.

[0019] 3. This utility model solves the technical problems of traditional drainers requiring disassembly and replacement of the entire pipe and poor compatibility with different pipe diameters when the traditional drainer is modified to prevent odor by setting an elastic rubber ring on the outer wall of the fixture and using interference friction to cooperate with the inner wall of the drain pipe. It achieves a convenient construction effect of stable installation and side wall sealing without damaging the original pipe structure, simply by inserting the device. Attached Figure Description

[0020] Figure 1This is a front perspective view of a secondary filtration odor-proof drain device proposed in this utility model;

[0021] Figure 2 This is a bottom view of a secondary filtration and odor-proof drain device proposed in this utility model;

[0022] Figure 3 This is a partial structural exploded view of the filter of a secondary filtration odor-proof sewer device proposed in this utility model;

[0023] Figure 4 This is a partial structural exploded view of the buffer of a secondary filtration and odor-proof drain device proposed in this utility model;

[0024] Figure 5 This is a partial structural breakdown diagram of the spring core of a secondary filtration and odor-proof drain device proposed in this utility model;

[0025] Figure 6 This is a partial structural diagram of the fixture for a secondary filtration and odor-proof drain device proposed in this utility model.

[0026] Legend:

[0027] 1. Fixing device; 2. Filtering mechanism; 201. Spring core; 202. Fixing thread one; 203. Connector; 204. Filter; 205. Fixing thread two; 206. Equipment housing; 207. Isolation plate; 3. Fixing mechanism; 301. Rubber ring one; 302. Limiting plate; 303. Positioning plate; 304. Rubber ring two; 305. Buffer; 306. Fixing thread three. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. 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.

[0029] Example:

[0030] Please refer to Figures 1 to 6 This utility model provides a secondary filtration odor-proof drain, which aims to solve the problems of poor odor and insect prevention effect due to the single sealing structure of the drain in the prior art, and the functional failure caused by the blockage of debris.

[0031] Please refer to Figure 1 and Figure 2As shown, a secondary filtration odor-proof drain includes a fixture 1, a filter mechanism 2 and a fixing mechanism 3 assembled on the fixture 1. The fixture 1 serves as the main frame for insertion into the drain pipe for support and fixation. The filter mechanism 2, in conjunction with the fixing mechanism 3, controls the flow of water, filters impurities, and provides multiple odor-proof seals. A rubber ring 301 belonging to the fixing mechanism 3 is fixedly connected to the outer wall of the fixture 1. The rubber ring 301 is an elastic multi-layered ring structure and is fitted onto the outer circumference of the fixture 1. The outer diameter of the rubber ring 301 is set to be larger than the outer diameter of the fixture 1 so as to form an interference friction fixation with the inner wall of the external drainage system. A limiting plate 302 belonging to the fixing mechanism 3 is fixedly connected to the bottom of the inner wall of the fixture 1. A spring core 201 belonging to the filter mechanism 2 is slidably connected to the inner wall of the fixture 1 along the axial direction. The spring core 201, as the upper control core, can be driven by the internal spring structure relative to the fixture 1. The bouncing core 201 moves up and down, and a locking plate 303 belonging to the fixing mechanism 3 is fixedly connected to the outer wall of the bouncing core 201. The limiting plate 302 is located below the locking plate 303 and the two are in corresponding positions, so that when the bouncing core 201 moves upward, the limiting plate 302 can abut against the locking plate 303 to limit the extreme stroke of the bouncing core 201. A rubber ring 304 belonging to the fixing mechanism 3 is fixedly connected to the top of the outer wall of the bouncing core 201. The outer edge of the rubber ring 304 is tightly fitted to the inner wall of the fixing device 1. When the bouncing core 201 is reset and popped out, the rubber ring 304 seals the inner cavity of the fixing device 1 to form the first seal. The bottom of the bouncing core 201 is provided with a fixing thread 306 belonging to the fixing mechanism 3. The bouncing core 201 is threadedly connected to a buffer 305 belonging to the fixing mechanism 3 through the fixing thread 306. The surface of the buffer 305 is provided with a flow guiding slope to disperse and guide the water flow passing under the bouncing core 201 to the surrounding areas.

[0032] Please refer to Figure 3 and Figure 6A secondary filtration odor-proof drain fixture has a connecting assembly and a filter component located below the fixture 1. A connector 203 belonging to the filter mechanism 2 is fixedly connected to the outer bottom wall of the fixture 1. The connector 203 has an internal thread on its inner wall as a connection hub. The fixture 1 is threadedly connected to a fixed thread 202 located below via the connector 203. The fixed thread 202 has a hollow tubular structure, forming a vertical flow channel for water to pass through. A fixed thread 205 belonging to the filter mechanism 2 is fixedly connected to the bottom of the fixed thread 202. The fixed thread 205 has a ring-shaped structure and its inner wall has threads for installing accessories. The interior of the fixed thread 205... A filter 204 belonging to the filter mechanism 2 is connected by a thread. The filter 204 is cross-sectioned in the water flow path and located at the outlet below the fixed thread 202. The surface of the filter 204 is distributed with filter holes to intercept hair and solid residue in the water flow. A connector 203 is also fixedly connected to the top of the outer wall of the fixed thread 202. The fixed thread 202 is threadedly connected to the outer housing 206 through the connector 203. The housing 206 forms a receiving cavity and covers the outer periphery of the filter 204. The housing 206 completely covers the filter 204 so that the water flow after being treated by the filter 204 can all enter the internal cavity of the housing 206 and wait for discharge.

[0033] In a preferred embodiment, in order to achieve automatic opening and closing and odor prevention functions at the bottom of the device, an isolation plate 207 is rotatably connected to the bottom of the device housing 206. A torsion spring reset component is provided at the connection hinge point between the isolation plate 207 and the device housing 206. The isolation plate 207 is configured to maintain a horizontal closed state by relying on the rebound torque provided by the torsion spring reset component when there is no external water flow impact. When the isolation plate 207 is closed, its edge is tightly fitted with the edge of the water outlet at the bottom of the device housing 206 to form a physical barrier against odors and pests.

[0034] As another preferred embodiment, in order to optimize the water flow guidance and reduce the direct impact of the water flow on the internal components, the buffer 305 is located directly above the internal flow channel of the fixed thread 202. The surface of the buffer 305 facing the water flow is constructed as a sloping guide slope, which is configured to disperse and guide the vertically falling water flow to the inner wall of the fixed thread 202.

[0035] As another preferred embodiment, in order to ensure the stable operation of the bouncing core 201, a spring structure and a press-lock component are integrated into the internal cavity of the bouncing core 201. The bouncing core 201 achieves the mechanical action of pressing and locking in the low-position drainage state and pressing again to pop up in the high-position water-closing state through the spring structure.

[0036] As another preferred embodiment, in order to enhance the installation adaptability and stability of the device for pipes with different diameters, the rubber ring 301 is constructed as a multi-layer annular wing structure. The multi-layer annular wing structure can adapt to the small dimensional tolerances of different drainage pipe diameters and provide multiple anti-slip friction forces. The rubber ring 304 is made of elastic sealing material and its outer edge size is designed to be slightly larger than the inner diameter of the fixture 1 to form an interference seal fit.

[0037] Working principle: When using the device, insert the retainer 1 downward into the drainage system. The rubber ring 301 on the outer wall of the retainer 1 rubs and squeezes against the inner wall of the drainage system. The friction force is used to fix the device in the drain outlet. No additional tools are required to complete the installation.

[0038] During drainage, press down on the spring core 201. The spring core 201 slides down on the inner wall of the retainer 1 and is locked in position by the internal spring structure. The rubber ring 304 moves down with the spring core 201 and disengages from the sealing surface of the inner wall of the retainer 1. Water flows into the interior of the retainer 1. The water flows through the bottom buffer 305 and is dispersed to the surroundings by the guide slope. The water then flows smoothly into the internal flow channel of the fixing thread 202.

[0039] The dispersed water flows downward and passes through the filter 204 located below the fixed thread 202. The filter 204 intercepts hair and solid impurities carried by the water flow, preventing impurities from entering the depths of the sewer. The filtered water flows into the internal cavity of the equipment housing 206. As the water pressure accumulated inside the equipment housing 206 increases, the water flow pushes open the isolation plate 207 rotatably connected to the bottom of the equipment housing 206. The isolation plate 207 overcomes the resistance of the torsion spring reset element and rotates downward to open, allowing the water flow to drain into the sewer. When the water flow stops, the isolation plate 207 automatically resets and closes under the action of the torsion spring reset element. The isolation plate 207 fits tightly against the water outlet at the bottom of the equipment housing 206, thereby effectively preventing odor gases and pests in the sewer from returning to the room through the device using the filtration mechanism 2, achieving the technical effect of secondary odor prevention.

[0040] When water needs to be stored or when use is finished, press the spring core 201 again. The spring core 201 will spring up and reset, and the rubber ring 304 will press against the inner wall of the retainer 1 again, forming the first physical seal.

Claims

1. A secondary filtration odor-proof drain device, comprising a fixture (1), a filter mechanism (2) and a fixing mechanism (3), wherein a rubber ring (301) belonging to the fixing mechanism (3) is fixedly connected to the outer wall of the fixture (1), a limiting plate (302) belonging to the fixing mechanism (3) is fixedly connected to the bottom of the inner wall of the fixture (1), and a spring core (201) belonging to the filter mechanism (2) is slidably connected to the inner wall of the fixture (1); Its features are, The outer wall of the bouncing core (201) is fixedly connected to a positioning plate (303) belonging to the fixing mechanism (3). The limiting plate (302) is located below the positioning plate (303) and abuts against the positioning plate (303). The top of the outer wall of the bouncing core (201) is fixedly connected to a rubber ring (304) belonging to the fixing mechanism (3). The bottom of the bouncing core (201) is threadedly connected to a buffer (305) belonging to the fixing mechanism (3) through a fixing thread (306) belonging to the fixing mechanism (3).

2. The secondary filtration odor-proof drain cleaner according to claim 1, characterized in that, The bottom outer wall of the fixture (1) is fixedly connected to a connector (203) belonging to the filter mechanism (2). The fixture (1) is threadedly connected to a fixing thread (202) belonging to the filter mechanism (2) through the connector (203). The bottom of the fixing thread (202) is fixedly connected to a fixing thread (205) belonging to the filter mechanism (2). The fixing thread (202) is threadedly connected to a filter (204) belonging to the filter mechanism (2) through the fixing thread (205). The top of the outer wall of the fixing thread (202) is fixedly connected to a connector (203) belonging to the filter mechanism (2). The fixing thread (202) is threadedly connected to a device housing (206) belonging to the filter mechanism (2) through the connector (203). The device housing (206) covers the outer periphery of the filter (204). The bottom of the device housing (206) is rotatably connected to an isolation plate (207) belonging to the filter mechanism (2).

3. The secondary filtration odor-proof drain cleaner according to claim 1, characterized in that, The rubber ring (301) is fitted on the outer circumferential surface of the fixture (1). The outer diameter of the rubber ring (301) is larger than the outer diameter of the fixture (1). The rubber ring (301) is configured to form an interference fit with the inner wall of the external drainage pipe.

4. A secondary filtration odor-proof drain cleaner according to claim 2, characterized in that, The buffer (305) is located above the internal flow channel of the fixed thread (202).

5. A secondary filtration odor-proof drain cleaner according to claim 2, characterized in that, The filter (204) is located below the fixing thread (202) and is completely located inside the internal cavity of the device housing (206), and the filter (204) is located above the isolation plate (207).

6. A secondary filtration odor-proof drain cleaner according to claim 2, characterized in that, A torsion spring reset element is provided at the connection between the isolation plate (207) and the equipment housing (206).

7. A secondary filtration odor-proof drain cleaner according to claim 2, characterized in that, The connector (203) has an internal thread on its inner wall, and the outer wall of the bottom of the retainer (1) and the outer wall of the top of the fixing thread (202) are both provided with external threads that are compatible with the connector (203).

8. A secondary filtration odor-proof drain cleaner according to claim 2, characterized in that, The second fixing thread (205) has a ring structure. The inner wall of the second fixing thread (205) is provided with threads to connect to the filter (204). The outer wall of the second fixing thread (205) is fixedly connected to the bottom of the first fixing thread (202).

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