Pressing type replaceable floor drain core with hair cutting function

By designing a push-button drain core with hair-cutting capabilities, and utilizing the combination of upper and lower cutting blades and a pressing spring, the problems of easy clogging and inconvenient cleaning of drain cores are solved, achieving automated hair cutting and cleaning, and improving ease of use and hygiene.

CN121611215APending Publication Date: 2026-03-06NINGBO CHUANGTAO E-COMMERCE CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202610103721.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-26
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

Existing drain cores are prone to clogging after prolonged use, making cleaning inconvenient and unhygienic, and they cannot effectively cut off hair and other debris.

Method used

Design a replaceable, push-button drain core with hair-cutting capabilities. It employs sliding upper and lower cutting blades, combined with a pressing spring and a sealing ring. By stepping on the drain cover, hair is automatically cut, and the cut debris is flushed into the sewer with the water flow.

Benefits of technology

It enables automated cleaning of the drain core, reduces the risk of clogging, improves ease of use and hygiene, and extends product life.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121611215A_ABST
    Figure CN121611215A_ABST
Patent Text Reader

Abstract

The invention relates to the technical field of home decoration building materials, and discloses a pressing type replaceable floor drain core with a hair cutting function, the pressing type replaceable floor drain core comprises a water guide drain basket, a lower cutting knife is inserted into the water guide drain basket, the outer wall of the lower cutting knife is slidably connected with an upper cutting knife, the upper end of the lower cutting knife is sleeved with a pressing spring, and the upper end of the pressing spring is connected with a water outlet of the water guide drain basket. A floor drain cover is arranged at the upper end of the upper cutting knife, and a sleeve groove is formed in the outer wall of the floor drain cover. By means of sliding fit of the upper cutting knife and the lower cutting knife, collected hair sundries are directly cut in the floor drain, the cut small sections can be flushed into a sewer along with water flow, the floor drain core does not need to be frequently disassembled for dumping and cleaning, the problems that a traditional floor drain core is prone to being blocked and troublesome to clean are solved, use convenience and sanitation are improved, and the floor drain core is worthy of popularization and application. By adopting the pressing type operation design, a user can trigger the cutting action only by treading the floor drain cover, automatic resetting is realized by matching with the pressing spring, and the operation is simple and labor-saving.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to the field of home decoration and building materials technology, specifically to a press-type replaceable floor drain core with hair-cutting function. Background Technology

[0002] Floor drains are crucial interfaces connecting the drainage pipe system to the indoor floor. As a key component of the residential drainage system, their performance directly affects indoor air quality, especially odor control in bathrooms. Floor drains need to possess basic characteristics such as fast drainage, odor prevention, clog prevention, and easy cleaning. Common materials include cast iron, PVC, stainless steel, and copper alloy. Floor drain cores, also known as floor drain odor preventers, are odor-proof devices used to upgrade old floor drains. They can be directly inserted into the existing floor drain, isolating sewer odors, pests, and germs without requiring complete replacement.

[0003] Most existing drain cores come with a built-in basket, which only has the simple function of collecting hair and other debris. If not cleaned for a long time, it will cause blockage and slow drainage. Cleaning requires removing the entire drain core to empty the hair and debris, which is troublesome and unhygienic. Therefore, a press-type replaceable drain core with hair-cutting function is proposed to solve the above problems. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a press-type replaceable drain core with hair-cutting capabilities, solving the problem that existing drain cores only have the simple function of collecting hair and other debris, making them inconvenient for quick cleaning.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: a press-type replaceable floor drain core with hair-cutting function, including a water-guiding basket; The interior of the water-guiding basket is fitted with a lower cutting blade for cutting debris and hair; The outer wall of the lower cutting blade is slidably connected to the upper cutting blade, which interacts with the lower cutting blade to cut debris and hair. The upper end of the lower cutting blade is fitted with a pressing spring to ensure that the upper cutting blade can return to its initial state after being pressed. The upper end of the upper cutting blade is equipped with a drain cover, which allows the user to conveniently press it with their foot; The outer wall of the drain cover is provided with a groove, and the inner wall of the groove is provided with a sealing ring. This allows the drain core to be pressed to the bottom, temporarily creating a vacuum and allowing long hair to move back and forth within the drain core, thus repeatedly being cut.

[0006] Preferably, the outer wall of the lower cutting blade is provided with a limiting guide groove, and the outer wall of the upper cutting blade is provided with a first internal threaded hole, the inner wall of the first internal threaded hole being threaded with a first screw.

[0007] Preferably, the rear end of the first screw is located in the limiting guide groove, and the bottom of the drain cover is provided with a second internal thread hole.

[0008] Preferably, the upper end of the upper cutting blade is fixedly connected to a threaded post, and the outer wall of the threaded post is threadedly connected to the inner wall of the second internal threaded hole.

[0009] Preferably, the bottom of the lower cutting blade is provided with a third internal threaded hole, the bottom of the water guide basket is provided with a through hole, and the inner wall of the third internal threaded hole is threaded with a second screw, which penetrates the inner wall of the through hole.

[0010] Preferably, the upper end of the pressing spring abuts against the inner wall of the upper cutting blade, and the lower end of the pressing spring abuts against the top of the lower cutting blade.

[0011] This invention provides a press-type replaceable drain core with hair-cutting function. It has the following beneficial effects: 1. This invention uses the sliding cooperation of the upper and lower cutting blades to directly cut the collected hair and debris inside the drain. The cut pieces can be flushed into the sewer with the water flow, eliminating the need for frequent disassembly of the drain core for emptying and cleaning. This solves the problems of easy clogging and troublesome cleaning of traditional drain cores, and improves the convenience and hygiene of use.

[0012] 2. This invention adopts a press-type operation design, which allows users to trigger the cutting action simply by stepping on the drain cover. The pressing spring enables automatic reset, making the operation simple and effortless. The sealing ring forms a temporary seal when pressed, allowing long hair to reciprocate and achieve multiple cuts. At the same time, the components are modularly replaceable through threaded connections, which facilitates maintenance and replacement and extends the product's service life. Attached Figure Description

[0013] Figure 1 This is a perspective view of the present invention; Figure 2 This is an exploded view of the present invention; Figure 3 This is a schematic diagram of the water-guiding basket structure of the present invention; Figure 4 This is a schematic diagram of the upper cutting blade structure of the present invention; Figure 5 This is a schematic diagram of the cross-sectional structure of the upper cutting blade of the present invention; Figure 6 This is a schematic diagram of the drain cover structure of the present invention; Figure 7 This is a schematic diagram of the installation position of the present invention; Figure 8 This is a schematic diagram showing the position of the water-guiding basket of the present invention inside the floor drain.

[0014] Among them, 1. Water guide basket; 2. Lower cutting blade; 3. Pressing spring; 4. Upper cutting blade; 5. Drain cover; 6. Sealing ring; 7. First internal threaded hole; 8. First screw; 9. Second screw; 10. Limiting guide groove; 11. Sleeve groove; 12. Second internal threaded hole; 13. Threaded post; 14. Third internal threaded hole. Detailed Implementation

[0015] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] Example 1

[0017] Reference Figure 1 - Figure 2 , Figure 6 This invention provides a press-type replaceable drain core with hair-cutting function, including a water-guiding basket 1; The interior of the water-guiding basket 1 is fitted with a lower cutting blade 2, which is used to cut debris and hair; The outer wall of the lower cutting blade 2 is slidably connected to the upper cutting blade 4, which interacts with the lower cutting blade 2 to cut debris and hair. The upper end of the lower cutting blade 2 is fitted with a pressing spring 3 to ensure that the upper cutting blade 4 can return to its initial state after being pressed. Through the sliding cooperation between the upper cutting blade 4 and the lower cutting blade 2, the collected hair and debris are directly cut inside the floor drain. The cut pieces can be flushed into the sewer with the water flow, eliminating the need for frequent disassembly of the floor drain core for emptying and cleaning. This solves the problems of easy clogging and troublesome cleaning of traditional floor drain cores, and improves the convenience and hygiene of use. The upper end of the upper cutting blade 4 is equipped with a drain cover 5, which is convenient for users to press with their feet; The outer wall of the drain cover 5 is provided with a groove 11, and the inner wall of the groove 11 is provided with a sealing ring 6, which can temporarily seal the vacuum after the drain core is pressed to the bottom, allowing long hair to move back and forth in the drain core and be repeatedly cut.

[0018] Reference Figure 4 The lower cutting blade 2 has a limiting guide groove 10 on its outer wall, and the upper cutting blade 4 has a first internal threaded hole 7 on its outer wall. The inner wall of the first internal threaded hole 7 is threaded with a first screw 8. The rear end of the first screw 8 is located in the limiting guide groove 10. The first screw 8 and the limiting guide groove 10 can limit and guide the upper cutting blade 4, so that the upper cutting blade 4 can move up and down stably. The bottom of the drain cover 5 has a second internal threaded hole 12.

[0019] Reference Figure 3 The upper end of the upper cutting blade 4 is fixedly connected to a threaded post 13. The outer wall of the threaded post 13 is threadedly connected to the inner wall of the second internal threaded hole 12. The setting of the threaded post 13 and the second internal threaded hole 12 makes it easy to install the drain cover 5 on the top of the upper cutting blade 4.

[0020] Reference Figure 5 The bottom of the lower cutting blade 2 is provided with a third internal threaded hole 14, and the bottom of the water guide basket 1 is provided with a through hole. The inner wall of the third internal threaded hole 14 is threaded with a second screw 9, which penetrates the inner wall of the through hole. Through the setting of the third internal threaded hole 14 and the second screw 9, the lower cutting blade 2 can be easily fixed inside the water guide basket 1. The components are modular and replaceable through threaded connection, which facilitates maintenance and replacement and extends the service life of the product.

[0021] The upper end of the pressing spring 3 abuts against the inner wall of the upper cutting blade 4, and the lower end of the pressing spring 3 abuts against the top of the lower cutting blade 2. The setting of the pressing spring 3 makes it easy for the upper cutting blade 4 to reset. With the pressing operation design, the user only needs to step on the drain cover 5 to trigger the cutting action, and the pressing spring 3 will automatically reset, making the operation simple and effortless.

[0022] Reference Figure 7 - Figure 8 The push-button replaceable drain core is inserted into the inner wall of the drain. This device cuts hair and debris in the sewer, and the cut pieces are flushed directly into the sewer with the water flow. Unlike traditional drain cores, it does not need to be removed for cleaning. Moreover, the blade is rubbed during each cut, so there is no problem with the blade becoming dull after long-term use. This device can be used in bathroom drains, as well as in various sinks and pools.

[0023] Working Principle: When in use, this device is inserted into the drain. Water carrying hair and debris flows through the drain basket 1 into its internal cavity, where the hair is collected. When cleaning is needed, the user presses down on the drain cover 5 with their foot, causing the upper cutting blade 4 to slide downwards along the outer wall of the lower cutting blade 2. At this time, the pressing spring 3 is compressed, and the interaction between the blades of the upper and lower cutting blades 4 and 2 cuts the hair and debris. After releasing the pressure, the elastic force of the pressing spring 3 causes the upper cutting blade 4 to return to its original position and move upwards, completing one cutting action. The sealing ring 6 on the outer wall of the drain cover 5 forms a vacuum with the inner wall of the drain when pressed to the bottom, allowing uncut long hair to move back and forth within the drain core for repeated cutting. The cut hair and debris are flushed directly into the sewer with the water flow, eliminating the need to remove and empty the drain core.

[0024] Although embodiments of the invention 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 to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A push-fit replaceable drain cartridge with cut hair, characterized in that, Including water guide basket (1); The lower cutting knife (2) is inserted in the water guide basket (1), which is used for cutting sundries and hair; The outer wall of the lower cutting knife (2) is slidably connected with the upper cutting knife (4), which is used for interacting with the lower cutting knife (2) to cut sundries and hair; The upper end of the lower cutting knife (2) is sleeved with a pressing spring (3), which is used for ensuring that the upper cutting knife (4) can return to the initial state after being pressed; The upper end of the upper cutting knife (4) is provided with a floor drain cover (5), which is used for the user to press with the foot conveniently; The outer wall of the floor drain cover (5) is provided with a sleeve groove (11), and the inner wall of the sleeve groove (11) is sleeved with a sealing ring (6), which is used for temporarily sealing the vacuum after the floor drain core is pressed to the bottom, so that the long hair reciprocates in the floor drain core to be repeatedly cut.

2. A push-fit replaceable drain cartridge with cut hair according to claim 1, characterized in that, The outer wall of the lower cutting knife (2) is provided with a limiting guide groove (10), the outer wall of the upper cutting knife (4) is provided with a first internal thread hole (7), and the inner wall of the first internal thread hole (7) is threadedly connected with a first screw (8).

3. A push-fit replaceable drain cartridge with cut hair according to claim 2, wherein, The rear end of the first screw (8) is located in the limiting guide groove (10), and the bottom of the floor drain cover (5) is provided with a second internal thread hole (12).

4. A push-fit replaceable drain cartridge with cut hair according to claim 3, wherein, The upper end of the upper cutting knife (4) is fixedly connected with a threaded column (13), and the outer wall of the threaded column (13) is threadedly connected with the inner wall of the second internal thread hole (12).

5. The push-fit replaceable drain core with cut hair according to claim 1, wherein, The bottom of the lower cutting knife (2) is provided with a third internal thread hole (14), the bottom of the water guide basket (1) is provided with a through hole, and the inner wall of the third internal thread hole (14) is threadedly connected with a second screw (9) penetrating through the inner wall of the through hole.

6. The push-fit replaceable drain core with cut hair according to claim 1, wherein, The upper end of the pressing spring (3) abuts against the inner wall of the upper cutting knife (4), and the lower end of the pressing spring (3) abuts against the top of the lower cutting knife (2).