Drainer filtering piece and drainer

Abstract

The drainer filtering piece comprises a filtering body, a plurality of guide pieces integrally connected with the filtering body are arranged in the center of the filtering body, the upper ends of the guide pieces are fixed ends fixedly connected with the filtering body, and the lower ends of the guide pieces are free ends abutting against the inner wall of a draining cylinder. According to the utility model, the long strip-shaped sheet is formed on the filtering piece through punching, then the long strip-shaped sheet is bent to form the guide sheet, and the filtering piece is guided and mounted through the guide sheet, so that the positioning and the mounting of the filtering piece are completed, and compared with a traditional mounting structure of forming an inner limiting ring on the filtering piece, the guide sheet is low in processing difficulty and low in processing precision requirement; and therefore, the waste of materials can be greatly avoided, and the production cost is effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of bathroom technology, specifically to a drain filter and a drain. Background Technology

[0002] Existing drainers, such as CN219060221U, rely on a spring switch in a low position to seal the water passage. However, the inner structure of the spring switch is complex. If debris enters the spring switch, it will cause the spring switch to move up and down unevenly, resulting in poor performance and easy damage and failure. To solve this technical problem, the inventors developed a drainer (application date 202411315847.9, filed on 2024-09-20), which uses an elastic flip cover to switch between an upward-curved drainage state and a downward-pressed sealing state to achieve the switching between drainage and sealing. The filter support component has an inner limiting ring formed downwards, which is engaged with the inner wall of the cylinder to complete the installation of the filter support component. However, in actual use, the applicant found that forming the inner limiting ring on the filter support component requires high machining precision, is very difficult to process, has a high scrap rate, and is costly.

[0003] In view of this, the applicant conducted in-depth research on the aforementioned deficiencies in the prior art, which led to this case. Utility Model Content

[0004] The purpose of this utility model is to address the above-mentioned shortcomings by providing a drain filter element with a simple structure, easy processing, and low requirements for processing precision.

[0005] The solution adopted by this utility model to solve the technical problem is: a drain filter element, including a filter body, wherein a plurality of guide plates integrally connected to the filter body are provided at the center of the filter body, the upper end of the guide plate is a fixed end fixedly connected to the filter body, and the lower end of the guide plate is a free end abutting against the inner wall of the drain tube.

[0006] Furthermore, in order to form a central hole structure for the filter body so that the guide plate can be integrally formed on the filter body and then guide the filter body to be installed in the lower cylinder, a punching hole is provided at the center of the filter body. The punching hole is a round hole, and the upper end of the guide plate is fixedly connected to the punching hole. The length of the guide plate is less than the radius of the punching hole.

[0007] Furthermore, in order to quickly process the guide plate to guide the filter body to be installed in the lower cylinder, several long strips are stamped at the center of the filter body, and the guide plate is formed by bending the long strips downward.

[0008] Furthermore, in order to guide the filter body to be centered and installed inside the drain cylinder, the plurality of elongated strips are radially arranged on the filter body.

[0009] Furthermore, in order to guide the filter body to be centered inside the drain pipe, the angle between the guide plate and the filter body is 90°.

[0010] Furthermore, in order to install the elastic water seal element on the filter body, the filter body is also provided with a number of arc-shaped holes for inserting the elastic water seal element, and the number of arc-shaped holes are evenly distributed circumferentially on the filter body.

[0011] Furthermore, in order to filter out foreign objects such as hair and prevent them from flowing into the sewer and causing blockage, the filter body is also provided with a number of filter holes, which are evenly distributed on the filter body.

[0012] Another objective of this utility model is to address the above-mentioned shortcomings by providing a drainer that is simple in structure, easy to process, and convenient to assemble and disassemble.

[0013] Another solution adopted by this utility model to solve the technical problem is: a drain device, including a drain filter element, a drain cylinder and an elastic water seal element. The drain cylinder includes a cylinder body for forming a drain outlet and a butterfly ring extending obliquely outward from the upper end of the cylinder body for forming a drain inlet. The filter body is disposed on the butterfly ring, the lower end of the guide plate abuts against the inner wall of the cylinder body, and the elastic water seal element is installed on the arc-shaped hole.

[0014] Furthermore, in order to ensure that the lower end of the guide plate abuts against the inner wall of the drain cylinder, the guide filter body is centered and installed inside the drain cylinder, and also serves to limit the position of the filter body; the distance between the outer side of the free end of the guide plate and the center point of the filter body is equal to the radius of the cylinder.

[0015] Furthermore, in order to form a flow-guiding structure on the elastic flap to guide the water flow, the elastic sealing element includes a pressing part and an elastic flap made of elastic material. The pressing part is located at the center of the elastic flap and is connected to the outer periphery of the pressing part. The upper surface of the elastic flap is provided with several spiral flow-guiding grooves.

[0016] Compared with the prior art, this utility model has the following advantages: This utility model stamps a long strip on the filter element, and then bends the long strip to form a guide plate. The guide plate guides the filter element for installation, thus completing the positioning and installation of the filter element. Compared with the traditional installation structure that forms an inner limiting ring on the filter element, the guide plate of this utility model is easier to process, has lower requirements for processing precision, is easier to manufacture, and can greatly avoid material waste and effectively reduce production costs. In addition, this utility model sets a spiral drainage groove on the elastic flip cover, which guides the water flow and effectively prevents water splashing, greatly improving the user experience. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0018] Figure 1 This is a structural diagram of a drain filter element.

[0019] Figure 2 This is a schematic diagram of the guide plate before it is bent.

[0020] Figure 3 This is a schematic diagram of the drain assembly.

[0021] Figure 4 This is a cross-sectional view of the drain assembly.

[0022] Figure 5 This is an exploded view of the drain assembly.

[0023] In the figure: 1. Filter element of drainer; 11. Guide plate; 12. Punching hole; 13. Arc hole; 14. Filter hole; 15. Strip plate; 2. Drain cylinder; 21. Cylinder body; 22. Butterfly ring; 3. Elastic water sealing element; 31. Pressing part; 32. Elastic flip cover; 33. Spiral drainage groove; 34. Arc block. Detailed Implementation

[0024] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments:

[0025] Example 1: As Figure 1-2 As shown, this embodiment provides a drain filter element, including a filter body. The center of the filter body is provided with a plurality of guide plates 11 integrally connected to the filter body. The upper end of the guide plate 11 is a fixed end that is fixedly connected to the filter body, and the lower end of the guide plate 11 is a free end that abuts against the inner wall of the drain cylinder 2.

[0026] In this embodiment, in order to form a central hole structure for the filter body so that the guide plate 11 can be integrally formed on the filter body and then guide the filter body to be installed in the lower cylinder 21; a punching hole 12 is provided at the center of the filter body. The punching hole 12 is a round hole. The upper end of the guide plate 11 is fixedly connected to the punching hole 12 by welding or punching and bending. The length of the guide plate 11 is less than the radius of the punching hole 12. Here, it is preferred that the length of the guide plate 11 is less than the radius of the punching hole 12 to ensure that each guide plate 11 can be directly punched and formed.

[0027] In this embodiment, in order to quickly process the guide plate 11 to guide the filter body to be installed in the lower cylinder 21, several long strips 15 are stamped at the center of the filter body, and the guide plate 11 is formed by bending the long strips 15 downward.

[0028] In this embodiment, in order to guide the filter body to be centered and installed inside the drain cylinder 2, the plurality of elongated strips 15 are radially arranged on the filter body. In addition to radial arrangement, inclined arrangement can also be used. Radial arrangement is preferred because it is easier to process.

[0029] In this embodiment, the filter body is installed in the drain cylinder 2 to guide the filter body to be centered; the angle between the guide plate 11 and the filter body is 90°.

[0030] In this embodiment, in order to install the elastic water seal 3 on the filter body, the filter body is also provided with a plurality of arc-shaped holes 13 for inserting the elastic water seal 3, and the plurality of arc-shaped holes 13 are evenly distributed circumferentially on the filter body.

[0031] In this embodiment, in order to filter out foreign objects such as hair and prevent them from flowing into the sewer and causing sewer blockage, the filter body is also provided with a plurality of filter holes 14, which are evenly distributed on the filter body.

[0032] Example 2: As Figure 3-5 As shown, this embodiment provides a drain device, including a drain filter element 1, a drain cylinder 2, and an elastic water seal element 3. The drain cylinder 2 includes a cylinder body 21 for forming a drain outlet and a butterfly ring 22 extending obliquely outward from the upper end of the cylinder body 21 for forming a drain inlet. The filter body is disposed on the butterfly ring 22, and the lower end of the guide plate 11 abuts against the inner wall of the cylinder body 21. The elastic water seal element 3 is installed on the arc-shaped hole 13.

[0033] In this embodiment, in order to abut the lower end of the guide plate 11 against the inner wall of the drain cylinder 2, the guide filter body is centered and installed inside the drain cylinder 2, and serves to limit the position of the filter body; the distance between the outer side of the free end of the guide plate 11 and the center point of the filter body is equal to the radius inside the cylinder 21.

[0034] In this embodiment, in order to form a flow-guiding structure on the elastic flip cover 32 to guide the water flow, the elastic water-sealing component 3 includes a pressing part 31 and an elastic flip cover 32 made of elastic material. The pressing part 31 is located at the center of the elastic flip cover 32 and the outer periphery of the pressing part 31 is connected to the elastic flip cover 32. The upper surface of the elastic flip cover 32 is provided with a plurality of spiral flow-guiding grooves 33. The elastic water-sealing component 3 is provided with an arc-shaped block 34 for engaging in the arc-shaped hole 13.

[0035] This invention involves stamping a long strip 15 onto a filter element, then bending the strip 15 to form a guide plate 11. The guide plate 11 guides the filter element during installation, thus completing the positioning and installation of the filter element. Compared to the traditional installation structure that forms an inner limiting ring on the filter element, the guide plate 11 of this invention is easier to process, requires less precision, and is easier to manufacture, greatly avoiding material waste and effectively reducing production costs. Furthermore, this invention provides a spiral drainage groove 33 on the elastic flip cover 32, which guides water flow and effectively prevents water splashing, greatly improving the user experience.

[0036] The above description is merely an embodiment of this utility model and does not limit the scope of patent protection of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of this utility model.

Claims

1. A drain filter element, characterized in that: The filter includes a filter body, and a number of guide plates integrally connected to the filter body are provided at the center of the filter body. The upper end of the guide plate is a fixed end that is fixedly connected to the filter body, and the lower end of the guide plate is a free end that abuts against the inner wall of the drain tube.

2. The drain filter element according to claim 1, characterized in that: The filter body has a punch hole at its center. The punch hole is a round hole. The upper end of the guide plate is fixedly connected to the punch hole. The length of the guide plate is less than the radius of the punch hole.

3. The drain filter element according to claim 1 or 2, characterized in that: Several long strips are stamped at the center of the filter body, and the guide strips are formed by bending the long strips downwards.

4. The drain filter element according to claim 3, characterized in that: The plurality of elongated strips are radially arranged on the filter body.

5. The drain filter element according to claim 1, characterized in that: The angle between the guide plate and the filter body is 90°.

6. The drain filter element according to claim 1, characterized in that: The filter body is also provided with several arc-shaped holes for inserting elastic water sealing components, and the several arc-shaped holes are evenly distributed circumferentially on the filter body.

7. The drain filter element according to claim 1, characterized in that: The filter body is also provided with a number of filter holes, which are evenly distributed on the filter body.

8. A drain device, characterized in that: The drain filter includes the drain tube and the elastic sealing element as described in any one of claims 1-7. The drain tube includes a cylinder for forming a drain outlet and a butterfly ring extending obliquely outward from the upper end of the cylinder for forming a drain inlet. The filter body is disposed on the butterfly ring, the lower end of the guide plate abuts against the inner wall of the cylinder, and the elastic sealing element is installed on the arc-shaped hole.

9. The drain device according to claim 8, characterized in that: The distance between the outer surface of the free end of the guide plate and the center point of the filter body is equal to the radius of the cylinder.

10. The drain device according to claim 8, characterized in that: The elastic water-sealing component includes a pressing part and an elastic flap made of elastic material. The pressing part is located at the center of the elastic flap and is connected to the outer periphery of the pressing part. The upper surface of the elastic flap is provided with several spiral drainage grooves.

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