Floor drain of anti-return and anti-overflow drainage central concentrator

By using an anti-overflow mechanism and a rotating impeller structure, the problems of wastewater backflow and hair blockage caused by the anti-overflow plate of the floor drain are solved, achieving smooth and clean drainage.

CN223577275UActive Publication Date: 2025-11-21ZHEJIANG SANLENG PLASTIC
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Patent Information

Application Number
CN202422863263.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-23
Publication Date
2025-11-21
Estimated Expiration
2034-11-23

AI Technical Summary

Technical Problem

Existing floor drain anti-backflow plates can easily divert wastewater to other pipe openings in the large four-way connector, causing backflow in other pipes, and the filter screen is prone to accumulating hair, affecting drainage.

Method used

It adopts an anti-overflow mechanism and a rotating shaft impeller structure. The anti-overflow mechanism prevents wastewater from overflowing through elastic plugs and flow guides, while the rotating shaft drives a brush to clean the filter screen and prevent hair from clogging it.

Benefits of technology

It effectively prevents wastewater from overflowing into other pipe openings, keeps the pipes unobstructed, prevents hair from clogging the pipes, and ensures smooth drainage.

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Abstract

The utility model belongs to the technical field of floor drains, and particularly relates to an anti-return overflow drainage central collector floor drain which comprises a large four-way joint, an anti-overflow connector is connected to the inner side of an opening in the upper end of the large four-way joint through threads, an anti-overflow mechanism is arranged on the inner side of the anti-overflow connector, and the top of the anti-overflow connector is in contact with a ground drainage plate. And the outer side of an opening in the lower end of the large four-way joint is connected with an internal thread sleeve through threads, the bottom of the internal thread sleeve is fixedly connected with a water storage disc, and the water storage disc penetrates through the internal thread sleeve. According to the utility model, a traditional anti-return overflow plate is replaced by an anti-overflow mechanism, the plug is elastically supported by the spring, the use principle of the anti-overflow mechanism is the same as that of the traditional anti-return overflow plate, but the flow guide cover is fixed on the outer side of the plug through the inner support rod, and the lower end opening of the flow guide cover shrinks inwards, so that wastewater can be guided to the filter screen; in addition, waste water can be prevented from flowing into other pipe openings of the large four-way joint, and overflow of other pipelines is avoided.
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Description

TECHNICAL FIELD

[0001] The utility model relates to floor drain technical field, concretely is a kind of anti-overflow drainage central collector floor drain. BACKGROUND

[0002] Floor drain central collector is used for the equipment of centralized drainage, it is usually installed in bathroom, kitchen, laundry room etc., it can effectively collect drainage, avoid water flow to scatter, keep the dry and clean ground.Floordrain central collector has many kinds, common include linear drainage collector and square drainage collector, linear drainage collector is generally strip-shaped, it is suitable for longer drainage area, such as shower area, bath area etc.;Square drainage collector is suitable for smaller drainage area, such as kitchen sink below, washing machine below etc.

[0003] Through the retrieval, the utility model patent with the announcement number CN2444004Y discloses a kind of anti-overflow multi-channel floor drain, including circular arc water pan, water seal core, filter screen, big four-way, with anti-wing interface, anti-overflow flow plate, ground drainage plate, water outlet movable cover plate, big four-way is connected with circular arc water pan, with 55 ° cylindrical cord connection, in big four-way above, insert with anti-wing interface, with anti-wing interface inside, ground drainage plate is movably equipped, in the center hole of ground drainage plate, connect movable cover plate, in big four-way, anti-overflow flow plate is movably equipped, in the water seal core of circular arc water pan, filter screen is movably equipped;In the patent, big four-way is connected with circular arc water pan with 55 ° cylindrical cord, with anti-wing interface is inserted in big four-way above, ground drainage plate is movably equipped in with anti-wing interface, anti-overflow flow plate is movably equipped in big four-way, can prevent water from ground to water, stink, when not draining, small insects in drainpipe can also be prevented from climbing to floor drain, because the height of floor drain itself is low, can be buried in floor, clean debris on own ground without affecting people downstairs.

[0004] But, the above patent still has certain defects: 1, the anti-overflow flow plate in existing floor drain, waste water is easily guided to other pipe orifice of big four-way, is easy to cause the backflow of other pipeline, and hair is easily accumulated at filter screen, to affect drainage. Therefore, need to improve. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a kind of anti-overflow drainage central collector floor drain, solve the anti-overflow flow plate in existing floor drain, waste water is easily guided to other pipe orifice of big four-way, is easy to cause the backflow of other pipeline problem, simultaneously solve the problem that hair is easily accumulated at filter screen, to affect drainage.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: A kind of anti-return overflow drainage central collector floor drain, including big four-way, the upper end opening inner side of big four-way is connected with anti-overflow interface by screw thread, the inner side of anti-overflow interface is provided with anti-overflow mechanism, the top of anti-overflow interface is contacted with ground drainage plate, the lower end opening outer side of big four-way is connected with internal thread sleeve by screw thread, the bottom of internal thread sleeve is fixedly connected with water pan, the water pan is arranged through internal thread sleeve, the lower end opening inner side of big four-way is connected with water seal core by screw thread, the inner side of water seal core is connected with water pan, the flange inner side of water seal core is fixedly connected with filter screen, the middle part of filter screen is equipped with rotating shaft by bearing, the top of rotating shaft is fixedly connected with impeller, the shaft body middle segment of rotating shaft is fixedly connected with connecting frame, the tail end of connecting frame is fixedly connected with brush, and brush is contacted with filter screen.

[0007] Preferably, the middle part of the ground drainage plate is provided with a movable cover plate, and the movable cover plate is a hollow disc type. Through the setting of the movable cover plate, the entering wastewater at the ground drainage plate has a primary filtering effect.

[0008] Preferably, the anti-overflow mechanism comprises a plurality of fixed rods fixedly connected to the inner side of the anti-overflow interface, and a center block fixedly connected between the plurality of fixed rods, a slide rod slidably connected inside the center block, a plug fixedly connected to the bottom of the slide rod, the plug slidably connected to the inner side of the lower end opening of the anti-overflow interface, a stop ring fixedly connected to the top of the slide rod, and a spring sleeved on the lower segment of the rod body of the slide rod. Through the setting of the anti-overflow mechanism, the overflow of wastewater and odor can be prevented.

[0009] Preferably, one end of the spring is fixedly connected to the plug, and the other end of the spring is fixedly connected to the center block. Through the setting of the spring, the plug has an auxiliary resetting effect.

[0010] Preferably, a protective sleeve one is fixedly connected between the plug and the center block, and a protective sleeve two is fixedly connected between the stop ring and the center block, and the protective sleeve one and the protective sleeve two are both made of rubber material. Through the setting of the protective sleeve one and the protective sleeve two, the spring has a protective effect.

[0011] Preferably, an inner support rod is fixedly connected to the outer side of the circumferential surface of the plug, and a flow guide cover is fixedly connected to the tail end of the inner support rod. Through the setting of the flow guide cover, not only the wastewater can be guided to the filter screen, but also the wastewater can be prevented from flowing into other pipe openings of the big four-way.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. The utility model discloses a replace the traditional anti -return overflow board with anti -overflow mechanism, wherein, the plug is supported elastically through the spring, and the use principle is same with the traditional anti -return overflow board, but, the fairing is fixed through the inner support rod on the outside of the plug, and the lower end opening of the fairing is recessed, so not only can the wastewater be guided to the filter screen, but also can prevent the wastewater from flowing into other pipe mouths of the big four -way, avoid the overflow of other pipelines.

[0014] 2. The utility model discloses a rotatable shaft is set up in the middle part of the filter screen, the top of the shaft is provided with an impeller, then a brush is fixed through the connecting frame in the middle segment of the shaft, the brush is directly contacted with the filter screen, so, utilize the impact force of wastewater to drive the impeller rotation, thereby make the coaxial brush synchronous rotation, then utilize the brush and the filter screen to clean to a certain extent, prevent the hair from blocking the filter screen. DRAWINGS

[0015] Figure 1 It is the overall structure perspective drawing of the utility model;

[0016] Figure 2 It is the front view sectional view of the utility model Figure 1 ;

[0017] Figure 3 It is the internal thread sleeve sectional perspective view of the utility model Figure 2 ;

[0018] Figure 4 It is the ground drainage plate structure schematic diagram of the utility model Figure 1 .

[0019] In the drawing: 1, movable cover plate;2, ground drainage plate;3, anti -overflow mechanism;4, anti -overflow interface;5, big four -way;6, filter screen;7, water seal core;8, water pan;9, internal thread sleeve;10, shaft;11, impeller;12, connecting frame;13, brush;31, fixed rod;32, center block;33, slide rod;34, plug;35, inner support rod;36, fairing;37, baffle ring;38, spring;39, protective sleeve one;310, protective sleeve two. DETAILED DESCRIPTION

[0020] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor are within the protection scope of the utility model.

[0021] Please refer to Figures 1-4The utility model provides a kind of anti-returning overflow drainage central collector floor drain, including big four-way 5, the upper end opening inside of big four-way 5 is connected with anti-overflow interface 4 by thread, the top of anti-overflow interface 4 is contacted with ground drainage plate 2, the middle part of ground drainage plate 2 is placed with movable cover plate 1, and movable cover plate 1 is hollow disc type.Through the setting of movable cover plate 1, it has the effect of primary filtration to the wastewater that enters ground drainage plate 2, the lower end opening outside of big four-way 5 is connected with internal thread sleeve 9 by thread, the bottom of internal thread sleeve 9 is fixedly connected with water pan 8, water pan 8 is set through internal thread sleeve 9, the lower end opening inside of big four-way 5 is connected with water seal core 7 by thread, water seal core 7 is connected to the inside of water pan 8, water seal core 7 and water pan 8 have gap, for water seal of water pan 8, the flange inside of water seal core 7 is fixedly connected with filter screen 6, the middle part of filter screen 6 is equipped with rotating shaft 10 by bearing, the top of rotating shaft 10 is fixedly connected with impeller 11, the shaft body middle segment of rotating shaft 10 is fixedly connected with connecting frame 12, the end of connecting frame 12 is fixedly connected with brush 13, and brush 13 is contacted with filter screen 6.

[0022] Please refer to Figure 2 The inside of anti-overflow interface 4 is provided with anti-overflow mechanism 3, by the setting of anti-overflow mechanism 3, the overflow of wastewater and odor can be prevented, and the anti-overflow mechanism 3 includes a plurality of fixed rods 31 fixedly connected to the inside of anti-overflow interface 4, and the plurality of fixed rods 31 are fixedly connected with a center block 32, the inside of the center block 32 is slidably connected with a slide rod 33, the bottom of the slide rod 33 is fixedly connected with a plug 34, the plug 34 is slidably connected to the lower end opening inside of anti-overflow interface 4, the top of the slide rod 33 is fixedly connected with a blocking ring 37, and the rod body lower segment of the slide rod 33 is sleeved with a spring 38. One end of the spring 38 is fixedly connected with the plug 34, and the other end of the spring 38 is fixedly connected with the center block 32. By the setting of the spring 38, the plug 34 has the effect of auxiliary reset.

[0023] Please refer to Figure 2 The plug 34 and the center block 32 are fixedly connected with a protective sleeve one 39, and the blocking ring 37 and the center block 32 are fixedly connected with a protective sleeve two 310, and the protective sleeve one 39 and the protective sleeve two 310 are both made of rubber. By the setting of the protective sleeve one 39 and the protective sleeve two 310, the spring 38 has the effect of protection.

[0024] The circumferential surface outside of the plug 34 is fixedly connected with an inner support rod 35, and the end of the inner support rod 35 is fixedly connected with a flow guide cover 36. By the setting of the flow guide cover 36, not only the wastewater can be guided to the filter screen 6, but also the wastewater can be prevented from flowing into other pipe openings of the big four-way 5.

[0025] The utility model discloses a specific implementation process as follows: when using, the movable cover plate 1 is placed in the middle groove of ground drainage plate 2, can carry out primary filtration to the wastewater of ground, then the wastewater enters into the anti -overflow interface 4, then washes off the plug 34, then the wastewater is discharged from the anti -overflow interface 4 under the diversion of the flow cover 36, and impacts the impeller 11, and the impeller 11 drives the brush 13 of coaxial rotation with it, then utilizes the brush 13 and filter screen 6 to carry out a certain degree of cleaning, prevents hair from blocking filter screen 6, guarantees the unobstructed of filter screen 6 place, and utilizes the flow cover 36 not only can the wastewater diversion to the filter screen 6, but also can prevent the wastewater from flowing into the other pipe orifice of big four -way 5, avoids the overflow of other pipeline.

[0026] Although the embodiments of the utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made thereto without departing from the principles and spirit of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A central drain collector for preventing backflow, comprising a large four-way connector (5), characterized in that: The upper opening of the large four-way connector (5) is connected to an overflow prevention interface (4) via a thread. An overflow prevention mechanism (3) is provided on the inner side of the overflow prevention interface (4). The top of the overflow prevention interface (4) contacts a ground drainage plate (2). The lower opening of the large four-way connector (5) is connected to an internal threaded sleeve (9) via a thread. A water storage tray (8) is fixedly connected to the bottom of the internal threaded sleeve (9). The water storage tray (8) is installed through the internal threaded sleeve (9). The lower opening of the large four-way connector (5) is connected to an overflow prevention interface (4) via a thread. A water seal core (7) is threadedly connected to the inner side of a water storage tray (8). A filter screen (6) is fixedly connected to the inner side of the flange of the water seal core (7). A rotating shaft (10) is installed in the middle of the filter screen (6) through a bearing. An impeller (11) is fixedly connected to the top of the rotating shaft (10). A connecting frame (12) is fixedly connected to the middle section of the shaft of the rotating shaft (10). A brush (13) is fixedly connected to the end of the connecting frame (12), and the brush (13) is in contact with the filter screen (6).

2. The anti-backflow central drain collector floor drain according to claim 1, characterized in that: A movable cover plate (1) is placed in the middle of the ground drainage board (2), and the movable cover plate (1) is a hollow disc.

3. A central drain with anti-backflow drainage system according to claim 1, characterized in that: The overflow prevention mechanism (3) includes multiple fixed rods (31) fixedly connected to the inside of the overflow prevention interface (4), and a central block (32) is fixedly connected to the multiple fixed rods (31). A sliding rod (33) is slidably connected through the inside of the central block (32). A plug (34) is fixedly connected to the bottom of the sliding rod (33). The plug (34) is slidably connected to the inside of the lower opening of the overflow prevention interface (4). A retaining ring (37) is fixedly connected to the top of the sliding rod (33). A spring (38) is sleeved on the lower section of the sliding rod (33).

4. A central drain with anti-backflow drainage system according to claim 3, characterized in that: One end of the spring (38) is fixedly connected to the plug (34), and the other end of the spring (38) is fixedly connected to the center block (32).

5. A central drain with anti-backflow drainage system according to claim 3, characterized in that: The plug (34) and the center block (32) are fixedly connected by a protective sleeve one (39), and the retaining ring (37) and the center block (32) are fixedly connected by a protective sleeve two (310). Both the protective sleeve one (39) and the protective sleeve two (310) are made of rubber.

6. A central drain with anti-backflow drainage system according to claim 3, characterized in that: An inner support rod (35) is fixedly connected to the outer circumferential surface of the plug (34), and a flow guide (36) is fixedly connected to the end of the inner support rod (35).

Citation Information

Patent Citations

  • Anti-flood drain with multiple draining pipe

    CN2444004Y