A floor drain core structure with large drainage capacity, good sealing performance and easy installation

Abstract

The utility model relates to floor drain product technical field, especially a floor drain core structure of big displacement of drainage, good sealing performance and easy installation, its characterized in that including one upper cylindrical shell, the upper cylindrical shell's upper cylinder cavity mouth inside is equipped with the handle boss of integrated molding, the inside convex snap ring that goes inwards protruding is equipped with in the lower cylinder cavity mouth of upper cylindrical shell, still be equipped with the sealing rubber ring that hides and embeds on its outer wall on the outer wall of upper cylindrical shell, a lower cylindrical shell, the upper part outer wall of lower cylindrical shell still is equipped with the concave ring groove portion of being matched with inside convex snap ring, still clamps the sealing inner ring between lower cylindrical shell and upper cylindrical shell, the sealing inner ring still is equipped with the extension cylinder that along lower cylindrical shell inner wall extension lays, the lower cylindrical shell lower part all around side wall still is equipped with the drainage hole, an umbrella -shaped plug is set up in lower cylindrical shell and can along lower cylindrical shell up and down movement, still be equipped with the reaction force component that makes umbrella -shaped plug keep sealed contact with extension cylinder between umbrella -shaped plug and lower cylindrical shell.

Description

Technical Field

[0001] This utility model relates to the field of floor drain products, and in particular to a floor drain core structure installed on a floor drain. Background Technology

[0002] The drain core is the core component of a floor drain, directly determining whether it can effectively meet the needs of drainage, insect prevention, and odor control. Chinese utility model patent application number 202123300622.0, entitled "A Novel Floor Drain Core," discloses a drain core comprising: a connecting cylinder and a connecting seat connected by threads; a lifting umbrella cover sealing the lower end of the connecting cylinder; a magnetic column inside the umbrella rod below the lifting umbrella cover; and a magnetic plate at the bottom of the connecting seat. When there is water in the connecting cylinder, the weight of the water pushes the lifting umbrella cover downwards. After the water drains out, the repulsive force between the magnetic plate and the magnetic column causes the edges of the lifting umbrella cover to press tightly against the lower end of the connecting cylinder for sealing. A sealing ring is also provided on the outside of the connecting cylinder to improve the sealing performance between the drain core and the sewer. A handle ring is provided inside the connecting cylinder for lifting the drain core. However, this technology still has the following technical problems in use: Firstly, during use, dirt will accumulate on the surface of the lifting canopy and the lower end of the connecting cylinder, which will gradually worsen the seal between the lifting canopy and the connecting cylinder, and its insect-proof and odor-proof functions will also gradually deteriorate.

[0003] Secondly, this technical solution requires pressing the top of the drain core to install it into the sewer, and the handle ring needs to be lifted and pulled upwards to remove the drain core. This results in a unidirectional and continuous relative movement between the sealing ring and the sewer, creating significant sliding friction resistance. This is not only very laborious, but also makes it easy for the handle ring to fall off when removing the drain core, causing inconvenience to users.

[0004] In addition, in order to allow the drainage core to have a larger drainage channel, the side walls of the connecting cylinder and the connecting seat are usually made relatively thin. As a result, when the connecting cylinder and the connecting seat are connected by threads, the thread depth will also be relatively shallow. This makes it easy for misaligned threads to occur during the assembly process, resulting in low assembly efficiency.

[0005] Given the above-mentioned shortcomings of the existing technology, the applicant believes it is necessary to make technical improvements to provide a floor drain core structure with large drainage capacity, good sealing performance, and easy installation. Utility Model Content

[0006] The purpose of this utility model is to solve the above-mentioned problems and shortcomings, and to provide a drain core structure with large drainage capacity, excellent sealing performance and easy installation. By sandwiching a sealing inner ring between the lower cylindrical shell and the upper cylindrical shell, and the sealing inner ring also having an extension cylinder that extends along the inner wall of the lower cylindrical shell, a large contact area is formed between the umbrella-shaped plug and the sealing inner ring, thereby greatly improving the sealing performance of the drain core. Furthermore, by having an integrally formed handle protrusion in the upper cylindrical cavity of the upper cylindrical shell, turning the drain core causes a rotational friction movement with a low friction value between the sealing rubber ring and the sewer, thereby easily installing or removing the drain core. The upper cylindrical shell and the lower cylindrical shell are assembled together by the interlocking of the inner convex retaining ring and the concave ring groove, which can also greatly improve the assembly efficiency.

[0007] The technical solution of this utility model is implemented as follows: a drain core structure with large drainage capacity, good sealing performance, and easy installation, characterized by comprising an upper cylindrical shell, wherein an integrally formed handle protrusion is provided in the upper cylindrical cavity of the upper cylindrical shell, and an inwardly protruding inner retaining ring is provided in the lower cylindrical cavity of the upper cylindrical shell, and a sealing rubber ring is also provided on the outer wall of the upper cylindrical shell; a lower cylindrical shell, wherein a concave annular groove is provided on the upper outer wall of the lower cylindrical shell to engage with the inner retaining ring, and a sealing inner ring is sandwiched between the lower cylindrical shell and the upper cylindrical shell, wherein the sealing inner ring is also provided with an extension cylinder extending along the inner wall of the lower cylindrical shell; drainage holes are also provided on the lower four sides of the lower cylindrical shell; an umbrella-shaped plug is provided in the lower cylindrical shell and can move up and down along the lower cylindrical shell, and a reaction force component is provided between the umbrella-shaped plug and the lower cylindrical shell to keep the umbrella-shaped plug in sealed contact with the extension cylinder.

[0008] Furthermore, the handle protrusion is a pair of symmetrically arranged protrusions disposed on the inner wall of the upper cylindrical cavity of the upper cylindrical shell.

[0009] Furthermore, the inner convex retaining ring is an annular convex edge integrally formed at the edge of the lower cylindrical cavity of the upper cylindrical shell; the concave annular groove is composed of an outer annular face, an inner concave annular face, and an inner buckling annular face, so that after the inner convex retaining ring is fitted with the concave annular groove, the outer annular face is flush with the outer wall of the upper cylindrical shell.

[0010] Furthermore, the inner wall of the upper cylindrical shell is provided with an inner step, and the inner sealing ring is provided with an integrally formed ring edge, which is clamped between the inner step and the inner buckling ring.

[0011] Furthermore, the bottom cavity edge of the extended cylinder is a conical cavity edge structure, and the top surface of the umbrella-shaped plug is a spherical structure.

[0012] Furthermore, the outer wall of the upper cylindrical shell is provided with a concave ring wall, and the upper cylindrical cavity of the upper cylindrical shell is provided with an integrally formed flange, and the outer surface of the flange is provided with teeth; the sealing ring is fitted in the concave ring wall, and the upper end of the sealing ring is also provided with an extended folded edge that abuts against the bottom surface of the flange.

[0013] Furthermore, the lower end of the umbrella-shaped plug is provided with an integrally formed sleeve post, and the lower cylindrical shell is correspondingly provided with a sleeve cylinder that engages with the sleeve post. The reaction force component is disposed between the sleeve cylinder and the sleeve post.

[0014] Furthermore, the reaction force component is a spring, one end of which is fitted into the sleeve, and the other end of which is fitted into the cavity of the sleeve post.

[0015] Furthermore, the reaction force component is composed of a first magnetic block and a second magnetic block whose magnetic poles repel each other. The first magnetic block is disposed in the sleeve, and the second magnetic block is disposed in the column cavity provided in the sleeve.

[0016] The beneficial effects of this utility model are: First, by sandwiching a sealing inner ring between the lower cylindrical shell and the upper cylindrical shell, and the sealing inner ring also having an extension cylinder that extends along the inner wall of the lower cylindrical shell, the umbrella-shaped plug and the extension cylinder can form a large sealing contact surface. Even if dirt is attached to both the umbrella-shaped plug and the extension cylinder, a very tight sealing structure can still be formed between them, thus ensuring that the floor drain has a very good odor-proof and insect-proof effect.

[0017] Secondly, the upper cylindrical shell has an integrally formed handle protrusion inside the upper cylindrical cavity. When installing or removing the drain core, the drain core can be screwed on the handle protrusion, which creates a rotational friction motion with a low friction value between the sealing ring and the sewer, thus making it easy to install or remove the drain core.

[0018] Furthermore, an inwardly protruding retaining ring is provided inside the lower cylindrical cavity of the upper cylindrical shell, and a concave ring groove is provided on the upper outer wall of the lower cylindrical shell to engage with the inwardly protruding retaining ring. In this way, the upper and lower cylindrical shells can be assembled together with just a light press, which greatly improves the assembly efficiency and thus greatly improves the production efficiency.

[0019] Finally, the sealing ring is embedded in the outer wall of the upper cylindrical shell. On the one hand, during the installation of the drain core, the sealing ring is less likely to be flipped up, making the installation more convenient and labor-saving; on the other hand, when removing the drain core, the sealing ring is less likely to fall into the sewer, making it safer to use. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0021] Figure 2 This is a cross-sectional structural diagram of the reaction force component of this utility model when it is a spring.

[0022] Figure 3 This is a cross-sectional schematic diagram of the connection structure between the upper and lower cylindrical shells of this utility model.

[0023] Figure 4 This is a cross-sectional structural diagram of the reaction force component of this utility model when it is composed of magnetic blocks whose magnetic poles repel each other.

[0024] Figure 5 This is a cross-sectional structural diagram of the reaction force component of this utility model when it is composed of magnetic columns and magnetic tubes with mutually repelling magnetic poles. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0026] like Figure 1 , 2 As shown, this utility model provides a drain core structure with large drainage capacity, excellent sealing performance, and easy installation. To achieve the purpose proposed by this utility model, it includes an upper cylindrical shell 1, in which an integrally formed handle protrusion 11 is provided in the upper cylindrical cavity, and an inwardly protruding inner retaining ring 12 is provided in the lower cylindrical cavity of the upper cylindrical shell 1. A sealing rubber ring 13 is also provided on the outer wall of the upper cylindrical shell 1 and embedded therein. A lower cylindrical shell 2 is also provided on the upper outer wall of the lower cylindrical shell 2, which is connected to the inner retaining ring 12. The concave annular groove 21 is fitted together, and a sealing inner ring 3 is also sandwiched between the lower cylindrical shell 2 and the upper cylindrical shell 1. The sealing inner ring 3 is also provided with an extension cylinder 31 that extends along the inner wall of the lower cylindrical shell 2. The lower cylindrical shell 2 is also provided with drainage holes 22 on its lower four sides. An umbrella-shaped plug 4 is provided in the lower cylindrical shell 2 and can move up and down along the lower cylindrical shell 2. A reaction force component 5 is also provided between the umbrella-shaped plug 4 and the lower cylindrical shell 2 to keep the umbrella-shaped plug 4 in sealed contact with the extension cylinder 31.

[0027] This invention significantly improves the sealing performance of the drain core by incorporating an extended cylindrical body 31 that extends along the inner wall of the lower cylindrical shell 2 within the sealing inner ring 3. The umbrella-shaped plug 4 and the extended cylindrical body 31 form a large sealing contact area. The sealing inner ring 3 and the extended cylindrical body 31 can be made of silicone or rubber, materials with good sealing performance. Under the action of the reaction force component 5, when the umbrella-shaped plug 4 compresses the extended cylindrical body 31, the extended cylindrical body 31 can undergo significant elastic deformation, thus forming a highly effective sealing structure and effectively preventing odors and insects from entering the room. Furthermore, a double sealing structure is formed by a sealing ring 13 embedded in the outer wall of the upper cylindrical shell 1, further enhancing the sealing performance. The sealing ring 13 is embedded in the outer wall of the upper cylindrical shell 1, making it less likely to warp or fall into the sewer during installation or removal of the drain core, greatly improving the user experience. To further improve the sealing performance of the sealing ring 13, multiple protruding rings 132 are provided on the outer surface of the sealing ring 13. This allows the protruding rings 132 to undergo greater elastic deformation after the drain core is inserted into the drain, thereby further improving the sealing performance between the drain core and the drain.

[0028] This invention uses the handle protrusion 11 to rotate the drain core, which causes the sealing ring 13 to rotate and rub against the sewer pipe wall. This not only reduces resistance and makes installation easier, but also prevents damage to the sealing ring 13, thereby improving the service life of the drain core.

[0029] The lower cylindrical shell 2 of this utility model has drainage holes 22 on the four sides of its lower part, which makes the drainage area of ​​the drain core drainage channel very large, thus having a large drainage capacity and being able to quickly discharge sewage; preventing water accumulation and greatly improving the user experience.

[0030] The upper cylindrical shell 1 of this invention can be made to be deeper to accommodate more water and generate greater pressure. When draining, the umbrella-shaped plug 4 moves downward for a large stroke, thereby forming a very large water flow channel, which in turn makes the drain core have a very large drainage capacity.

[0031] like Figure 1 As shown, in order to conform to ergonomics and facilitate the use of hand force to turn the drain core, while minimizing the impact of the handle protrusion 11 on drainage, the handle protrusion 11 is a pair of symmetrically arranged protrusions set on the inner wall of the upper cylindrical shell 1. In this way, a channel for water flow is left between the two protrusions, so that sewage can be discharged quickly, further improving the drainage performance of the drain core.

[0032] like Figure 3 , 4As shown in Figure 5, the inner convex retaining ring 12 is an annular convex edge integrally formed at the edge of the lower cylindrical cavity of the upper cylindrical shell 1; the concave annular groove 21 is composed of an outer annular surface 211, an inner concave annular surface 212, and an inner buckling ring 213, so that after the inner convex retaining ring 12 is fitted into the concave annular groove 21, the outer annular surface 211 is flush with the outer wall of the upper cylindrical shell 1. This results in a simple and smooth surface for the drain core, allowing for easy installation into the sewer system.

[0033] like Figure 3 , 4 As shown in Figure 5, the inner wall of the upper cylindrical shell 1 is also provided with an inner step 14, and the sealing inner ring 3 is provided with an integrally formed ring edge 32, which is clamped between the inner step 14 and the inner buckling ring 213. In this way, the sealing inner ring 3 is firmly clamped between the inner step 14 and the inner buckling ring 213, and it is not easy to shift during use, thereby further ensuring the sealing performance of the drain core.

[0034] like Figure 2 As shown, the bottom cavity edge of the extended cylinder 31 has a conical cavity edge structure, and the top surface of the umbrella-shaped plug 4 has a spherical structure, with the bottom edge of the spherical structure positioned lower than the bottom of the extended cylinder 31. Thus, when the umbrella-shaped plug 4 moves upward under the action of the reaction force component 5, a sloping contact sealing surface is formed between the umbrella-shaped plug 4 and the extended cylinder 31. Through the elastic deformation of the umbrella-shaped plug 4 and the extended cylinder 31, a large-area surface sealing structure is formed, making the sealing performance between them more efficient and reliable. At the same time, the bottom edge of the extended cylinder 31 is less prone to warping, helping to ensure the sealing performance of the drain core. Furthermore, because the bottom edge of the spherical structure is positioned lower than the bottom of the extended cylinder 31, during drainage, the top surface of the umbrella-shaped plug 4 can guide sewage to flow more quickly into the sewer below the bottom of the extended cylinder 31, thus avoiding the problem of incomplete drainage.

[0035] like Figure 2 , 3As shown, the outer wall of the upper cylindrical shell 1 is also provided with a concave annular wall 15, and an integrally formed flange 16 is provided at the upper cylindrical cavity opening of the upper cylindrical shell 1, with teeth 161 on the outer periphery of the flange 16; the sealing ring 13 is fitted into the concave annular wall 15, and the upper end of the sealing ring 13 is also provided with an extended folded edge 131 that abuts against the bottom surface of the flange 16. In this way, the sealing ring 13 is embedded in the outer wall of the upper cylindrical shell 1 by fitting into the concave annular wall 15. In use, the flange 16 and the extended folded edge 131 are placed at the top outer edge of the drain pipe. The serrations 161 on the outer surface of the flange 16 increase the friction between the drain core and the drain pipe, allowing the drain core to be more securely fitted into the drain pipe and preventing sewage and odors from flowing back into the room. The elastic deformation of the extended folded edge 131 makes the surface of the drain core flush with the floor around the drain, preventing water accumulation around the drain. At the same time, the extended folded edge 131 can further improve the sealing performance between the drain core and the drain pipe and effectively prevent the sealing ring 13 from falling into the drain pipe.

[0036] like Figure 2 , 3 As shown in Figure 4, the lower end of the umbrella-shaped plug 4 is also provided with an integrally formed sleeve post 41. Correspondingly, the lower cylindrical shell 2 is provided with a sleeve cylinder 23 that is sleeved with the sleeve post 41. The reaction force component 5 is disposed between the sleeve cylinder 23 and the sleeve post 41. In this way, sewage can be effectively prevented from splashing onto the reaction force component 5 during drainage, thereby avoiding its corrosion by sewage and enabling the reaction force component 5 to function stably for a long time.

[0037] like Figure 2 As shown, the reaction force component 5 is a spring. One end of the spring is fitted into the sleeve 23, and the other end is fitted into the column cavity 411 provided in the sleeve post 41. The restoring force of the spring is greater than the weight of the umbrella-shaped plug 4 itself. When drainage is not required, the umbrella-shaped plug 4 is squeezed together with the extension cylinder 31 under the action of the spring's restoring force to form a sealing structure, preventing foul odors and insects in the sewer from entering the room. When the sum of the weight of the water stored in the upper cylindrical shell 1 and the weight of the upper umbrella-shaped plug 4 itself is greater than the spring's restoring force, the spring is compressed, and the umbrella-shaped plug 4 moves downward along the lower cylindrical shell 2. Sewage is discharged into the sewer from the drain holes 22 on the side walls of the lower cylindrical shell 2.

[0038] Furthermore, such as Figure 2 , 3 As shown, the sleeve 23 also has a central core 24. When the reaction force component 5 is a spring, the spring can be fitted onto the central core 24. This not only allows for quick positioning of the spring during assembly, but also prevents it from twisting during repeated compression and extension, thus ensuring its stable function.

[0039] like Figure 4 As shown, the reaction force component 5 can also be composed of a first magnetic block 51 and a second magnetic block 52 whose magnetic poles repel each other. The first magnetic block 51 is disposed in the sleeve 23, and the second magnetic block 52 is disposed in the column cavity 411 provided in the sleeve post 41. In this way, the repulsive magnetic force between the first magnetic block 51 and the second magnetic block 52 is used to squeeze the umbrella-shaped plug 4 and the extended cylinder 31 together to form a sealed structure; the gravity of the water stored in the upper cylindrical shell 1 and the gravity of the umbrella-shaped plug 4 itself are used to overcome the above-mentioned repulsive magnetic force, so that the umbrella-shaped plug 4 moves downward along the lower cylindrical shell 2, and the sewage is discharged into the sewer from the drain holes 22 on the side walls of the lower cylindrical shell 2.

[0040] like Figure 5 As shown, the reaction force component 5 can also be composed of a magnetic column 53 and a magnetic tube 54 whose magnetic poles repel each other.

Claims

1. A floor drain core structure with large drainage capacity, excellent sealing performance, and easy installation, characterized in that... include An upper cylindrical shell (1) is provided with an integrally formed handle protrusion (11) in the upper cylindrical cavity of the upper cylindrical shell (1), and an inwardly protruding inner retaining ring (12) is provided in the lower cylindrical cavity of the upper cylindrical shell (1). A sealing rubber ring (13) is also provided on the outer wall of the upper cylindrical shell (1). The lower cylindrical shell (2) has a concave annular groove (21) on its upper outer wall that engages with the inner convex retaining ring (12). A sealing inner ring (3) is also sandwiched between the lower cylindrical shell (2) and the upper cylindrical shell (1). The sealing inner ring (3) also has an extension cylinder (31) that extends along the inner wall of the lower cylindrical shell (2). The lower cylindrical shell (2) also has drainage holes (22) on its lower four sides. An umbrella-shaped plug (4) is provided in the lower cylindrical shell (2) and can move up and down along the lower cylindrical shell (2). A reaction force component (5) is also provided between the umbrella-shaped plug (4) and the lower cylindrical shell (2) to keep the umbrella-shaped plug (4) in sealed contact with the extension cylinder (31).

2. The drain core structure with large drainage capacity, excellent sealing performance, and easy installation according to claim 1, characterized in that: The handle protrusion (11) is a pair of symmetrically arranged protrusions on the inner wall of the upper cylindrical cavity of the upper cylindrical shell (1).

3. The drain core structure with large drainage capacity, excellent sealing performance, and easy installation according to claim 1, characterized in that: The inner convex retaining ring (12) is an annular convex edge integrally formed at the edge of the lower cylinder cavity of the upper cylindrical shell (1); the concave annular groove (21) is composed of an outer annular face (211), an inner concave annular face (212) and an inner buckling ring (213), so that after the inner convex retaining ring (12) and the concave annular groove (21) are fitted together, the outer annular face (211) is flush with the outer wall of the upper cylindrical shell (1).

4. The drain core structure with large drainage capacity, excellent sealing performance, and easy installation according to claim 3, characterized in that: The inner wall of the upper cylindrical shell (1) is also provided with an inner step (14), and the sealing inner ring (3) is provided with an integrally formed ring edge (32), which is sandwiched between the inner step (14) and the inner buckle ring (213).

5. The drain core structure with large drainage capacity, excellent sealing performance, and easy installation according to claim 1, characterized in that: The bottom cavity edge of the extended cylinder (31) is a conical cavity edge structure, and the top surface of the umbrella-shaped plug (4) is a spherical structure.

6. The drain core structure with large drainage capacity, excellent sealing performance, and easy installation according to claim 1, characterized in that: The outer wall of the upper cylindrical shell (1) is also provided with a concave ring wall (15), and the upper cylindrical cavity of the upper cylindrical shell (1) is also provided with an integrally formed flange (16), and the outer surface of the flange (16) is provided with teeth (161). The sealing ring (13) is fitted in the concave ring wall (15), and the upper end of the sealing ring (13) is also provided with an extended folded edge (131) that abuts against the bottom surface of the flange (16).

7. The drain core structure with large drainage capacity, excellent sealing performance, and easy installation according to claim 1, characterized in that: The lower end of the umbrella-shaped plug (4) is also provided with an integrally formed sleeve post (41), and the lower cylindrical shell (2) is correspondingly provided with a sleeve cylinder (23) that is sleeved with the sleeve post (41), and the reaction force component (5) is provided between the sleeve cylinder (23) and the sleeve post (41).

8. The drain core structure with large drainage capacity, excellent sealing performance, and easy installation according to claim 7, characterized in that: The reaction force component (5) is a spring. One end of the spring is fitted into the sleeve (23), and the other end of the spring is fitted into the column cavity (411) provided in the sleeve (41).

9. The drain core structure with large drainage capacity, excellent sealing performance, and easy installation according to claim 7, characterized in that: The reaction force component (5) is composed of a first magnetic block (51) and a second magnetic block (52) whose magnetic poles repel each other. The first magnetic block (51) is disposed in the sleeve (23), and the second magnetic block (52) is disposed in the column cavity (411) provided in the sleeve (41).

10. The drain core structure with large drainage capacity, excellent sealing performance, and easy installation according to claim 7, characterized in that: The sleeve (23) is also provided with a central core column (24).

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