Filtering piece, flow controller and bubbler

Abstract

The utility model discloses a filtering piece, a flow controller and a bubbler. Specifically, the filtering piece is provided with a water inlet surface and a water outlet surface; a through hole penetrating through the water inlet surface and the water outlet surface is formed in the filtering piece; an inlet is formed in the end, located on the water inlet face, of the through hole, and an outlet is formed in the end, located on the water outlet face, of the through hole; the diameter of the inlet is smaller than that of the outlet, the diameter of the inlet ranges from 0.1 mm to 0.5 mm, and the diameter of the outlet ranges from 0.2 mm to 1 mm. The flow controller comprises the filtering piece, and the bubbler comprises the flow controller. The cleaning difficulty of the filtering piece can be reduced, and the service life of the filtering piece is prolonged.

Description

Technical Field

[0001] This utility model relates to bathroom products, and in particular to a filter element, a flow controller and an aerator. Background Technology

[0002] Currently available bathroom water products such as faucets, showerheads, and aerators typically have flow controllers installed inside. The main function of the flow controller is to ensure that when the inlet water pressure reaches a certain level, the outflow rate does not change with the increase of water pressure, thus keeping the outflow rate basically constant. Therefore, it can ensure that the water products obtain basically the same flow rate under different water pressure conditions, making the water output effect of the water products stable, ensuring water conservation and comfort.

[0003] Existing flow controllers have the following problems during use: If the input water contains impurities, such as fine sand, small gravel, debris from aging pipe walls, or small particles accidentally falling into the water transfer equipment, these impurities will be blocked on the filter screen located on the inlet side of the flow controller. The filter screen needs to be cleaned regularly; otherwise, if the mesh becomes clogged to a certain extent, it will reduce the flow rate entering the flow controller. In addition, if small impurities fall onto the filter screen, some larger particles will accumulate on the surface of the mesh, which are easy to clean, while some larger particles will get stuck in the mesh and be difficult to remove. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a filter element, a flow controller and an aerator to reduce the cleaning difficulty of the filter element and the flow controller and aerator with such filter element.

[0005] To solve the above-mentioned technical problems, the first technical solution adopted by this utility model is as follows:

[0006] A filter element having an inlet surface and an outlet surface;

[0007] The filter element has through holes that penetrate the inlet surface and the outlet surface;

[0008] The through hole has an inlet at one end of the water inlet surface and an outlet at one end of the water outlet surface;

[0009] The diameter of the inlet is smaller than the diameter of the outlet, the diameter of the inlet is 0.1mm to 0.5mm, and the diameter of the outlet is 0.2mm to 1mm.

[0010] Furthermore, the inner diameter of the through hole gradually increases along the direction from the inlet to the outlet.

[0011] Furthermore, the water inlet surface includes a first region and a second region;

[0012] The first region is disposed around the second region, and the surface of the first region forms an angle of 60° to 90° with the axis of the first filter element.

[0013] Furthermore, the water outlet surface of the filter element is provided with at least two support members.

[0014] To solve the above-mentioned technical problems, the second technical solution adopted by this utility model is as follows:

[0015] A flow controller includes a base and an elastic element. The base is provided with a flow-limiting channel, and the elastic element is disposed in the flow-limiting channel. The flow-limiting channel deforms under water pressure and has different water passage gaps. It also includes a filter element as described in the previous technical solution.

[0016] The filter element is connected to the base and is disposed on the water inlet side of the base. The flow limiting channel is located within the axial projection range of the filter element along the flow controller.

[0017] Furthermore, the flow-limiting channel includes a limiting groove and a water passage hole, the base is provided with the limiting groove along the axial direction, and the bottom wall of the limiting groove is provided with the water passage hole;

[0018] The elastic element is embedded in the limiting groove;

[0019] In the radial direction of the base, one side of the elastic member abuts against the inner wall of one side of the limiting groove, and the other side of the elastic member forms a water passage gap with the inner wall of the other side of the limiting groove, which communicates with the water passage hole.

[0020] Furthermore, the outer diameter of the filter element is larger than the outer diameter of the limiting groove.

[0021] Furthermore, there is a gap between the end edge of the water outlet surface of the filter element and the end edge of the water inlet side of the base.

[0022] Furthermore, an elastic wall is provided around the outer perimeter of the base;

[0023] The top of the elastic wall is higher than the water inlet side of the base.

[0024] Furthermore, a deformation groove is formed between the inner side of the elastic wall and the side wall of the base.

[0025] To solve the above-mentioned technical problems, the third technical solution adopted by this utility model is as follows:

[0026] An aerator, comprising the flow controller of the previous technical solution.

[0027] The beneficial effects of this invention are as follows: By enlarging the outlet diameter of the through-hole, larger particles can pass through smoothly. For example, particulate impurities generally have irregular surface shapes and protrusions. During the use of the aerator, impurities may pass through the inlet but become stuck in the through-hole due to their own protrusions and cannot be discharged from the outlet. This solution reduces the occurrence of this problem by setting the outlet diameter to be larger than the inlet diameter, thus reducing the probability of the filter element's through-holes becoming clogged and difficult to clean. This filter element is mainly used to intercept impurities with a particle size greater than 0.5mm, while allowing impurities with a particle size smaller than or equal to this range to pass through the through-hole smoothly, reducing the difficulty of cleaning the filter element and extending its service life. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the flow controller in Embodiment 1 of this utility model;

[0029] Figure 2 for Figure 1 A bottom view;

[0030] Figure 3 for Figure 2 Sectional view of the middle AA plane Figure 1 ;

[0031] Figure 4 for Figure 2 Sectional view of the middle AA plane Figure 2 ;

[0032] Figure 5 for Figure 2 A cross-sectional view of the BB plane;

[0033] Figure 6 This is a schematic diagram of the flow controller in its natural state according to Embodiment 2 of this utility model;

[0034] Figure 7 for Figure 6 A bottom view;

[0035] Figure 8 for Figure 7 A sectional view of the C-plane;

[0036] Figure 9 for Figure 7 A cross-sectional view of the DD plane;

[0037] Figure 10 This is a cross-sectional view of the flow controller and the pipeline in the second embodiment of this utility model.

[0038] Label Explanation:

[0039] 1. Base; 11. Elastic wall; 12. Deformation groove; 13. Support;

[0040] 2. Filter element; 21. Inlet surface; 211. First zone; 212. Second zone; 22. Outlet surface; 221. Support element; 23. Through hole; 231. Inlet; 232. Outlet; 24. Connecting column;

[0041] 3. Elastic components;

[0042] 4. Flow restriction channel; 41. Limiting groove; 42. Water passage hole;

[0043] 5. Pipes. Detailed Implementation

[0044] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0045] Please refer to Figures 1-10 An aerator includes a flow controller, which comprises a base 1, an elastic element 3, and a filter element 2. The base 1 has a flow-limiting channel 4, and the elastic element 3 is disposed within the flow-limiting channel 4. The flow-limiting channel 4 deforms under water pressure, resulting in different water passage gaps. The filter element 2 is fixedly or detachably connected to the base 1, and is disposed on the water inlet side of the base 1. The flow-limiting channel 4 is located within the axial projection area of ​​the filter element 2 along the flow controller. The filter element 2 has an inlet surface 21 and an outlet surface 22. The filter element 2 has a through hole 23 penetrating both the inlet surface 21 and the outlet surface 22. The through hole 23 has an inlet 231 at one end on the inlet surface 21 and an outlet 232 at one end on the outlet surface 22. The diameter of the inlet 231 of the through hole 23 is smaller than the diameter of the outlet 232. The diameter of the inlet 231 is 0.1–0.5 mm, and the diameter of the outlet is 0.2–1 mm. Preferably, the diameter of the inlet 231 is 0.1 mm, 0.15 mm, 0.2 mm, 0.25 mm, 0.3 mm, 0.35 mm, 0.4 mm, 0.45 mm, or 0.5 mm, and the diameter of the outlet 232 is 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, or 1 mm. Specifically, a connecting post 24 is provided at the center of the outlet surface 22 of the filter element 2. The connecting post 24 is coaxially arranged with the base 1 and inserted into the base 1. In other embodiments, the connection between the filter element 2 and the base 1 can also be achieved by providing a snap-fit ​​structure or a welding structure between the edge of the filter element 2 and the edge of the base 1.

[0046] Understandably, by enlarging the diameter of the outlet 232 of the through-hole 23, larger impurities can pass through the through-hole 23 smoothly. For example, particulate impurities generally have irregular surface shapes and protrusions. During the use of the aerator, impurities may pass through the inlet 231 but become stuck in the through-hole 23 due to their own protrusions and cannot be discharged from the outlet 232. This solution sets the diameter of the outlet 232 to be larger than the diameter of the inlet 231, which can reduce the occurrence of this problem and reduce the probability of the through-hole 23 of the filter element 2 being blocked and difficult to clean. The filter element 2 is mainly used to intercept impurities with a particle size greater than 0.5 mm, while allowing impurities with a particle size smaller than or equal to this size range to pass through the through-hole 23 smoothly, reducing the cleaning difficulty of the filter element 2 and extending the service life of the filter element 2.

[0047] In some embodiments, the inner diameter of the through-hole 23 gradually increases along the direction from the inlet 231 to the outlet 232, allowing impurities with a particle size close to the diameter of the inlet 231 to pass smoothly through the through-hole 23 and be discharged downstream of the flow controller. Since the impurity particles that can pass through the through-hole 23 are all small in size, they will not affect the quality of the water flow. Further, the inner diameter of the through-hole 23 can also increase in a stepped manner along the direction from the inlet 231 to the outlet 232.

[0048] In some embodiments, the inlet surface 21 includes a first region 211 and a second region 212. The first region 211 is arranged around the second region 212. The surface of the first region 211 forms an angle of 60° to 90° with the axis of the filter element 2. Since the internal space of the aerator is limited, when the diameter of the filter element 2 is fixed (the diameter of the filter element 2 cannot be much smaller than the diameter of the inlet end of the aerator), the larger the angle, the smaller the height of the filter element 2, which makes the overall size of the flow controller smaller and reduces the space occupied by the flow controller in the aerator. When the angle α is much smaller than 90°, especially less than 60°, impurities will move along the first region 211 to other positions of the flow controller under the impact of the water flow, making it difficult to clean the impurities. Therefore, when the angle α is close to 90°, the intercepted impurities will remain on the surface of the filter element 2, reducing the difficulty of cleaning. Preferably, the included angle α is 65°, 70°, 75°, 80°, 85°, 86°, 87°, 88° or 89°.

[0049] In some embodiments, there is a gap between the end edge of the outlet surface 22 of the filter element 2 and the end edge of the inlet side of the base 1. Specifically, the outlet surface 22 of the filter element 2 is provided with at least two support members 221. The support members 221 are arranged around the edge of the outlet surface 22 of the filter element 2, so that the filter element 2 is pressed against the base 1 by the support members 221, thereby supporting the filter element 2 and ensuring that the gap is maintained between the outlet surface 22 and the base 1. This gap can serve as an additional water passage when the filter element 2 is in normal water flow or when its through hole 23 is blocked, allowing water to pass through the filter element 2 from a position other than the through hole 23 and enter the base. At the same time, in order to maintain the filtration effect of the through hole 23, the height of this gap needs to be set to be equal to or less than the diameter of the inlet 231.

[0050] In some embodiments, the flow-limiting channel 4 includes a limiting groove 41 and a water passage hole 42. The base 1 has the limiting groove 41 axially, and the bottom wall of the limiting groove 41 has the water passage hole 42. An elastic element 3 is embedded in the limiting groove 41. In the radial direction of the base 1, one side of the elastic element 3 abuts against the inner wall of one side of the limiting groove 41, and the other side of the elastic element 3 forms a water passage gap with the inner wall of the other side of the limiting groove 41, communicating with the water passage hole 42. The elastic element 3 serves to limit the flow. When water impacts the elastic element 3, the elastic element 3 undergoes lateral deformation, thereby reducing the flow-limiting channel 4 formed between the elastic element 3 and the inner wall of the limiting groove 41. Figure 5 From the perspective shown, when the water pressure is higher, the deformation of the elastic element 3 is greater, which makes the width of the flow-limiting channel 4 smaller and the area that can pass through water smaller. However, at the same time, the flow rate of the water will increase. That is, the water passage area of ​​the flow-limiting channel 4 is inversely proportional to the water pressure, and the water flow rate of the flow-limiting channel 4 is directly proportional to the water pressure. The setting of the elastic element 3 ensures that no matter what changes occur in the water pressure at the front end, the flow rate of the water discharged from the water passage hole 42 remains basically consistent, which plays a role in stabilizing the flow rate and ensuring that the bathroom products equipped with this flow controller can meet the production standards.

[0051] In some embodiments, the outer diameter of the filter element 2 is larger than the outer diameter of the limiting groove 41 to expand the coverage of the filter element 2, so that larger impurities are intercepted outside the filter element 2, reducing the difficulty of cleaning.

[0052] In some embodiments, an elastic wall 11 is provided around the base 1; the top of the elastic wall 11 is higher than the water inlet side of the base 1, and a deformation groove 12 is formed between the inner side of the elastic wall 11 and the side wall of the base 1. The elastic wall 11 is provided to make an interference fit with the installation position of the bathroom product that requires flow control. That is, the elastic wall 11 is provided to allow the base 1 to engage with the inner wall of the pipe 5 of the corresponding bathroom product. When the elastic wall 11 is embedded in the inner wall of the corresponding pipe 5, the elastic wall 11 retracts inward toward its axis. The deformation groove 12 is used to provide clearance for the retraction of the elastic wall 11 and to prevent the deformation of the elastic wall 11 from affecting the fit clearance between the flow restriction channel 4 and the elastic element 3.

[0053] Please refer to Figures 1-5 Embodiment 1 of this utility model is as follows:

[0054] An aerator includes a flow controller, which comprises a base 1, an elastic element 3, and a filter element 2. The base 1 is provided with a flow-limiting channel 4, and the elastic element 3 is disposed within the flow-limiting channel 4. The flow-limiting channel 4 deforms under water pressure and has different water passage gaps. A connecting post 24 is provided at the center of the outlet surface 22 of the filter element 2. The connecting post 24 is coaxially arranged with the base 1 and inserted into the base 1. The filter element 2 is disposed on the water inlet side of the base 1. There is a gap between the outlet surface 22 of the filter element 2 and the water inlet side of the base 1. Specifically, the outlet surface 22 of the filter element 2 is provided with at least two support members 221, which are arranged around the edge of the outlet surface 22 of the filter element 2.

[0055] In this embodiment, the flow-limiting channel 4 includes a limiting groove 41 and a water passage hole 42. The base 1 has a limiting groove 41 along its axial direction, and the bottom wall of the limiting groove 41 has a water passage hole 42. An elastic member 3 is embedded in the limiting groove 41. In the radial direction of the base 1, one side of the elastic member 3 abuts against one side of the inner wall of the limiting groove 41, and the other side of the elastic member 3 forms a water passage gap with the other side of the limiting groove 41, which communicates with the water passage hole 42. The other side of the inner wall is provided with several protruding posts, which can maintain the water passage gap when the elastic member 3 is subjected to high pressure and undergoes large deformation, thus preventing the flow-limiting channel 4 from being completely closed.

[0056] In this embodiment, the outer diameter of the filter element 2 is larger than the outer diameter of the limiting groove 41, and the outer diameter of the filter element 2 is slightly smaller than the outer diameter of the water inlet surface 21 of the base 1 or equal to the outer diameter of the water inlet surface 21 of the base 1.

[0057] In this embodiment, the filter element 2 has an inlet surface 21 and an outlet surface 22; the filter element 2 has a through hole 23 that penetrates the inlet surface 21 and the outlet surface 22; the through hole 23 has an inlet 231 at one end of the inlet surface 21 and an outlet 232 at one end of the outlet surface 22; the diameter of the inlet 231 of the through hole 23 is smaller than the diameter of the outlet 232 of the through hole 23, and the inner diameter of the through hole 23 gradually increases along the direction from the inlet 231 to the outlet 232. The diameter of the inlet 231 of the through hole 23 is partially set to 0.4 mm and partially set to 0.45 mm, and the diameter of the outlet 232 is uniformly set to 0.55 mm.

[0058] In this embodiment, the water inlet surface 21 includes a first region 211 and a second region 212; the first region 211 is arranged around the second region 212, and the surface of the first region 211 forms an angle α of 88° with the axis of the filter element 2.

[0059] In this embodiment, as Figure 3 As shown, the base 1 includes an arched support 13, through which the flow controller of this embodiment can be installed at the water inlet end of the aerator. The arched shape of the support 13 can increase the volume of the cavity of the flow controller downstream of the water outlet, providing a larger rectification space for the water flow discharged downstream from the flow controller, or it can be used to accommodate other aerator structures.

[0060] Please refer to Figures 6-10 Embodiment 2 of this utility model is a flow controller, used for installation in the water inlet pipe 5 of bathroom products such as shower heads, spray guns, and extraction heads:

[0061] The difference between the flow controller in this embodiment and the flow controller described in Embodiment 1 is that it also includes an elastic wall 11.

[0062] In this embodiment, an elastic wall 11 is provided around the base 1; the top of the elastic wall 11 is higher than the water inlet side of the base 1, and a deformation groove 12 is formed between the inner side of the elastic wall 11 and the side wall of the base 1. In other equivalent embodiments, the elastic wall 11 may also be composed of a plurality of elastic elements arranged at equal intervals surrounding the base 1.

[0063] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A filter element, characterized in that, The filter element has an inlet surface and an outlet surface; The filter element has through holes that penetrate the inlet surface and the outlet surface; The through hole has an inlet at one end of the water inlet surface and an outlet at one end of the water outlet surface; The diameter of the inlet is smaller than the diameter of the outlet, the diameter of the inlet is 0.1mm to 0.5mm, and the diameter of the outlet is 0.2mm to 1mm.

2. The filter element according to claim 1, characterized in that, The inner diameter of the through hole gradually increases along the direction from the inlet to the outlet.

3. A filter element according to claim 1, characterized in that, The water inlet surface includes a first region and a second region; The first region is disposed around the second region, and the surface of the first region forms an angle of 60° to 90° with the axis of the filter element.

4. A filter element according to claim 1, characterized in that, The outlet surface of the filter element is provided with at least two support members.

5. A flow controller, comprising a base and an elastic element, wherein the base is provided with a flow-limiting channel, the elastic element is disposed within the flow-limiting channel, and the flow-limiting channel deforms under water pressure to form different water passage gaps, characterized in that, It also includes the filter element as described in any one of claims 1 to 4; The filter element is connected to the base and is disposed on the water inlet side of the base. The flow limiting channel is located within the axial projection range of the filter element along the flow controller.

6. A flow controller according to claim 5, characterized in that, The flow-limiting channel includes a limiting groove and a water passage hole. The base has the limiting groove along the axial direction, and the bottom wall of the limiting groove has the water passage hole. The elastic element is embedded in the limiting groove; In the radial direction of the base, one side of the elastic member abuts against the inner wall of one side of the limiting groove, and the other side of the elastic member forms a water passage gap with the inner wall of the other side of the limiting groove, which communicates with the water passage hole.

7. A flow controller according to claim 5, characterized in that, There is a gap between the end edge of the water outlet surface of the filter element and the end edge of the water inlet side of the base.

8. A flow controller according to claim 5, characterized in that, The base is surrounded by an elastic wall. The top of the elastic wall is higher than the water inlet side of the base.

9. A flow controller according to claim 8, characterized in that, A deformation groove is formed between the inner side of the elastic wall and the side wall of the base.

10. A bubbler, characterized in that, Includes the flow controller as described in any one of claims 5 to 9.

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