Filtering piece, filtering assembly and bathtub

Abstract

The invention discloses a filtering piece, a filtering assembly and a bathtub. The filtering piece comprises a flexible strip and a connecting part. A plurality of flexible strips are arranged around the first axis to define a water passing cavity, the flexible strips are arranged at intervals to form water passing gaps, water passes through the water passing gaps and the water passing cavity in sequence, impurities are blocked through the flexible strips to be filtered, the water passing gaps are used for achieving water passing, and due to the fact that the flexible strips are strip-shaped, the water passing gaps formed by the flexible strips at intervals are also strip-shaped, the water passing cavity is provided with the water passing cavity. Compared with a net-shaped water passing gap, production is convenient, and cleaning is convenient. And each flexible strip is suitable for deforming when being pressed, so that the area of the water passing gap is increased, the passing ability of water flow is improved, the displacement of the water flow is increased through the deformation, and blockage is prevented. And when the pressure is not applied, the deformation is recovered so as to allow the water passing gap to recover, so that when the pressure is relieved, the water passing gap becomes smaller, and foreign matters such as hair are prevented from leaking from the water passing gap. And at least one end part of each flexible strip is fixedly connected with the connecting part, so that the integrity of the filtering piece is ensured.

Description

Technical Field

[0001] The invention relates to the field of filtering products, and in particular to a filtering element, a filtering assembly and a bathtub. Background Art

[0002] The existing filter structures are mostly mesh structures, which intercept debris through the mesh structure entity and realize water flow through the mesh structure water holes. However, the mesh structure filter is difficult to produce due to its complex structure. At the same time, when the mesh structure filters hair, each mesh water hole may be entangled with hair, and each water hole needs to be cleaned. In addition, hair is easily entangled with the mesh filter and is difficult to remove during cleaning. Tools such as scissors are required, which makes cleaning more troublesome. Summary of the invention

[0003] The object of the present invention is to overcome the above-mentioned defects or problems existing in the background technology and to provide a filter element, a filter assembly and a bathtub.

[0004] To achieve the above objectives, the present invention and its preferred embodiments adopt the following technical solutions, but the embodiments are not limited to the following solutions:

[0005] Solution 1: A filter element, comprising a connecting portion and a plurality of flexible strips,

[0006] The connecting portion is a ring-shaped structure, and at least one end of each of the flexible strips is fixedly connected to the connecting portion;

[0007] The flexible strips are arranged around the first axis and enclose a water flow cavity with the connecting portion. The flexible strips are arranged at intervals to form a water flow gap that flows water in sequence with the water flow cavity. Each flexible strip is suitable for deforming when under pressure to increase the area of ​​the water flow gap, and is suitable for restoring the deformation when not under pressure to allow the water flow gap to recover.

[0008] Solution 2, based on Solution 1, each of the flexible strips is suitable for deforming in a direction away from the first axis when under pressure so as to increase the volume of the water passage cavity, and allowing the deformation of the flexible strip to recover when not under pressure.

[0009] Solution 3, based on Solution 2, along the water flow direction of the water flow cavity, each of the flexible strips gradually approaches the first axis;

[0010] And / or the flexible strip bends in a direction away from the first axis when not under pressure.

[0011] Solution 4: Based on Solution 1, the width of each of the flexible strips gradually decreases or increases along the water flow direction of the water flow cavity.

[0012] And / or along the water flow direction of the water flow cavity, the width of each water flow gap gradually decreases.

[0013] Solution 5: Based on Solution 2, the wall surface of the flexible strip facing away from the water passage cavity is a non-slip surface.

[0014] Solution 6, based on Solution 1, the connecting part has two, namely a first connector and a second connector, and both ends of each of the flexible strips are connected to the first connector and the second connector respectively, and the end of the flexible strip connected to the first connector is defined as the first end, and the end connected to the second connector is defined as the second end; the parameters of the filter element are one or more of the following:

[0015] The angle between the line connecting the first end and the second end and the horizontal plane is α, 0°≤α<90°;

[0016] Define the angle between the tangent line of the first end and the tangent line of the second end as β, 90°≤β<180°;

[0017] Define the distance between adjacent first ends as S1, the distance between adjacent second ends as S2, S2 / S1≤1;

[0018] The number of the flexible strips is defined as C1, 3≤C1≤30;

[0019] The maximum diameter of the first connector is defined as D2, the maximum diameter of the second connector is defined as D3, and 0<D3 / D2≤1;

[0020] Define the thickness of the first end as L2, the thickness of the second end as L1, and 0.2≤L2 / L1≤5.

[0021] Option seven, a filter assembly, which is suitable for being installed in an installation space, comprises a fixed seat and a filter element as described in any one of Options one to six, the connecting portion comprises a first connecting body, the fixed seat, the first connecting body and the flexible strip are arranged in sequence along the water flow direction, the fixed seat is fixedly connected to the first connecting body and is suitable for being detachably connected to the installation space, the fixed seat is provided with a water flow hole connected to the water flow cavity, and the flexible strip is suitable for being deformed when pressed against the bottom of the hole of the installation space.

[0022] Solution eight, based on solution seven, further includes a friction ring, which is installed on the outer wall of the fixing seat and is suitable for abutting against the installation space, and the fixing seat is plugged into the installation space.

[0023] Option nine, based on Option seven or Option eight, further includes a pressing assembly, which is installed on the fixed seat, and the pressing assembly includes a pressing piece, which is suitable for sliding between a first position and a second position relative to the fixed seat, when in the first position, the pressing piece seals the water hole, and when in the second position, there is a water-passing gap between the pressing piece and the installation space that is connected to the water hole.

[0024] Solution 10, based on Solution 9, the pressing member is provided with a lifting surface, the lifting surface faces the fixed seat and is suitable for being operated at least when the pressing member is in the second position.

[0025] Solution eleven, a bathtub, comprising a mounting seat and a filter assembly as described in any one of Solutions seven to ten, wherein the mounting seat is provided with the mounting space.

[0026] Solution 12, based on Solution 11, the installation space is provided with a limiting surface, and the fixing seat is suitable for being located on the limiting surface to control the deformation degree of the flexible strip.

[0027] Solution 13, based on Solution 11, defines the maximum diameter of the installation space as D1, the height of the flexible strip as H1, 0.5≤H1 / D1≤3;

[0028] The maximum diameter of the first connector is defined as D2, where D2≤D1.

[0029] From the above description of the present invention and its preferred embodiments, it can be seen that, compared with the prior art, the technical solution of the present invention and its preferred embodiments have the following beneficial effects due to the adoption of the following technical means:

[0030] 1. In scheme 1 and its preferred embodiment, a filter element includes a plurality of flexible strips and connecting parts.

[0031] There are a number of flexible strips, which are arranged around the first axis and enclosed with the connecting part to form a water flow cavity. The flexible strips are arranged at intervals to form water flow gaps that flow water in sequence with the water flow cavity. The flexible strips are used to block debris for filtering, and the water flow gaps are used to achieve water flow. Since the flexible strips are strip-shaped, the water flow gaps formed by the intervals are also strip-shaped. Compared with the mesh-shaped water flow gaps, it is convenient to produce, and fewer places need to be cleaned, and hair is not easy to be entangled, so it is convenient to clean.

[0032] Furthermore, each flexible strip is adapted to deform when under pressure to increase the area of ​​the water gap, thereby increasing the water flow area and improving the water flow through the strip. The deformation increases the water flow discharge and prevents blockage. The strip is adapted to recover the deformation when not under pressure to allow the water gap to recover, so that when the pressure is released, generally when the strip is removed for cleaning, the water gap can be reduced to prevent foreign matter such as hair from leaking out of the water gap.

[0033] At least one end of each flexible strip is fixedly connected to the connecting part to ensure the integrity of the filter element, so that each flexible strip can be transported or installed and disassembled together. The connecting part is an annular structure. For example, the two ends of the flexible strip are respectively connected to the first connector and the second connector. The first connector, the flexible strip, and the second connector are arranged successively along the water flow direction of the water flow cavity. If the first connector is an annular structure, it can have a larger water flow area to communicate with the water flow cavity. If the second connector is an annular structure, it is a non-enclosed structure for quickly cleaning the intercepted filter material in the internal water flow cavity. Of course, only the first connector or the second connector can be provided to achieve the corresponding effect.

[0034] 2. In the second scheme and its preferred embodiment, each flexible strip is adapted to deform in a direction away from the first axis when under pressure, so that the volume of the water passage cavity and the area of ​​the water passage gap are increased, so that the water passage area of ​​the water passage cavity is increased, and more debris can be stored in the water passage cavity to prevent easy clogging. When not under pressure, the deformation of the flexible strip is allowed to recover, and the volume of the water passage cavity becomes smaller, so that the debris gathers inside for uniform cleaning.

[0035] 3. In the third scheme and its preferred embodiment, along the water flow direction of the water flow cavity, each flexible strip gradually approaches the first axis, so that each flexible strip is suitable for being more easily deformed in the direction away from the first axis when under pressure, and when each flexible strip is not under pressure, each flexible strip restores to form a claw-like structure, and the area of ​​the water flow cavity along its water flow direction gradually decreases, which can make it easier to clamp debris and prevent it from falling. And / or when the flexible strip is not under pressure, it bends in the direction away from the first axis, so that when under pressure, the flexible strip can be more likely to deform in the direction away from the first axis, ensuring that the volume of the water flow cavity increases.

[0036] 4. In the fourth scheme and its preferred embodiment, along the water flow direction of the water flow cavity, the width of each flexible strip gradually decreases or increases, so that the end with a smaller width can be more easily deformed, while the end with a larger width can have better strength to ensure the stability of the structure. And / or along the water flow direction of the water flow cavity, the width of each water flow gap gradually decreases, so that the upper part is easy to flow water and the lower part is easy to retain debris.

[0037] 5. In scheme five and its preferred embodiments, when the flexible strip is under pressure, the wall surface of the flexible strip facing away from the water chamber may come into contact with other objects. In order to prevent the flexible strip from being severely deformed and damaged under the action of water pressure, the wall surface of the flexible strip facing away from the water chamber is made into an anti-slip surface to increase the friction with other objects, so that the flexible strip can withstand a certain water pressure.

[0038] 6. In scheme six and its preferred embodiment, there are two connecting parts, which are defined as a first connecting body and a second connecting body respectively. Both ends of each flexible strip are connected to the first connecting body and the second connecting body respectively, so as to ensure the strength of the filter net.

[0039] The end of the flexible strip connected to the first connector is defined as the first end, and the end connected to the second connector is defined as the second end; the parameters of the filter element are one or more of the following:

[0040] The angle between the line from the first end to the second end and the horizontal plane is α, 0°≤α<90°,

[0041] The included angle between the tangent line of the first end and the tangent line of the second end is defined as β, 90°≤β<180°.

[0042] The spacing between the first ends is defined as S1, the spacing between the second ends is defined as S2, S2 / S1≤1, and the shape is such that water can easily flow through the top and debris can easily accumulate at the bottom;

[0043] The number of flexible strips is defined as C1, 3≤C1≤30, to ensure water flow and filtering capacity;

[0044] The maximum diameter of the first connector is defined as D2, the maximum diameter of the second connector is defined as D3, 0<D3 / D2≤1, and the structure is similar to a clamping claw.

[0045] The thickness of the first end is defined as L2, the thickness of the second end is defined as L1, and 0.2≤L2 / L1≤5, so that one end is easy to deform and the other end ensures strength.

[0046] 7. Scheme 7 and its preferred embodiment, a filter assembly, which is suitable for installation in the installation space, includes a fixed seat and the above-mentioned filter element, and has the beneficial effects brought by the above-mentioned filter element. The connecting part includes a first connector, the fixed seat, the first connector and the flexible strip are arranged in sequence along the water flow direction, the fixed seat is fixedly connected to the first connector, and is suitable for detachable connection with the installation space, the fixed seat is provided with a water flow hole connected to the water flow cavity, the flexible strip is suitable for deformation when pressing against the bottom of the hole of the installation space, and the position of the fixed seat is fixed relative to the installation space through the detachable connection between the fixed seat and the installation space. Since the two ends of the flexible strip respectively apply force to the bottom of the hole of the installation space and the fixed seat, the flexible strip will not change its position, and the flexible strip will not recover, thereby ensuring the stability of the filter element when in use. When it is necessary to clean up debris, the fixed seat is disassembled relative to the installation space to realize the disassembly of the filter assembly, thereby cleaning the filter element.

[0047] 8. In scheme eight and its preferred embodiments, the fixing seat is plugged into the installation space to achieve a detachable connection, which is more convenient. Since the flexible strip has restoring force and there will be buoyancy of water in the usage scenario, the gravity of the filter assembly may not be able to ensure the stability of the installation. By setting a friction ring, the friction ring is installed on the outer wall of the fixing seat and is suitable for offsetting the installation space, thereby increasing friction and ensuring installation stability.

[0048] 9. In scheme nine and its preferred embodiments, a pressing assembly is installed on a fixed seat, and the pressing assembly includes a pressing piece, which is suitable for sliding between a first position and a second position relative to the fixed seat. When in the first position, the pressing piece seals the water hole, and when in the second position, there is a water-passing gap between the pressing piece and the installation space that is connected to the water hole, so as to realize the functions of water passing and water storage by pressing.

[0049] 10. In scheme 10 and its preferred embodiment, the pressing member is provided with a lifting surface, which faces the fixing seat and is suitable for being operated at least when the pressing member is in the second position, so that the fixing seat can be detached from the insertion in the installation space by lifting the lifting surface.

[0050] 11. In scheme 11 and its preferred embodiment, a bathtub includes a mounting seat and the above-mentioned filter assembly, the mounting seat is provided with a mounting space, and has the beneficial effects of the above-mentioned filter assembly.

[0051] 12. In Scheme 12 and its preferred embodiments, the installation space is provided with a limiting surface, and the fixing seat is suitable for being seated on the limiting surface to control the deformation degree of the flexible strip, to prevent excessive deformation and damage, and to prevent insufficient deformation and the area of ​​the water gap from increasing significantly.

[0052] 13. In the thirteenth solution and its preferred embodiment, the maximum diameter of the installation space is defined as D1, the height of the flexible strip is defined as H1, and 0.5≤H1 / D1≤3;

[0053] The maximum diameter of the first connector is defined as D2, where D2≤D1, so as to prevent the filter assembly from being difficult to plug into the installation space. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0055] Figure 1 This is a diagram of the use state of the pressing member of the bathtub in the first embodiment when it is in the first position;

[0056] Figure 2 This is a diagram of the use state of the pressing member of the bathtub in the first embodiment when it is in the second position;

[0057] Figure 3 It is a schematic diagram of disassembling the filter assembly of the bathtub in Example 1;

[0058] Figure 4 It is a guarantee diagram of the filter assembly in the first embodiment;

[0059] Figure 5 is a three-dimensional diagram of the filter element in Example 1;

[0060] Figure 6 is a three-dimensional diagram of the filter element in Embodiment 1 from another perspective;

[0061] Figure 7 It is a structural schematic diagram of the filter element in Example 1;

[0062] Figure 8 Schematic diagram of the flexible strip of the filter element before and after deformation in Example 1;

[0063] Fig. 9 Schematic diagram of the water gap of the filter element before and after deformation in Example 1;

[0064] Fig.10 It is a structural schematic diagram of the fixing base in the first embodiment;

[0065] Fig.11 It is a structural schematic diagram of the filter assembly in Example 1;

[0066] Fig.12 for Fig.11 Enlarged view of the indicated area;

[0067] Fig.13 The size of the filter assembly in Example 1 is shown in FIG. Figure 1 ;

[0068] Fig.14 The size of the filter assembly in Example 1 is shown in FIG. Figure 2 ;

[0069] Fig.15 The size of the filter assembly in Example 1 is shown in FIG. Figure 3 ;

[0070] Fig.16 The size of the filter assembly in Example 1 is shown in FIG. Figure 4 ;

[0071] Description of main reference numerals:

[0072] Filter element 1; flexible strip 11; connecting part 12; first connecting body 121; slot 1211; second connecting body 122; water gap 13; water cavity 14; fixing seat 2; water hole 21; mounting slot 22; snap-on protrusion 23; guide slope 231; friction ring 3; pressing assembly 4; pressing member 41; lifting surface 411; sealing ring 42; spring core 43; mounting seat 5; mounting space 51; limiting surface 511; first axis 6; water gap 7; DETAILED DESCRIPTION

[0073] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are preferred embodiments of the present invention and should not be regarded as excluding other embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0074] In the claims, description and the above-mentioned drawings of the present invention, unless otherwise clearly defined, the use of terms such as "first", "second" or "third" etc. are for distinguishing different objects rather than for describing a specific order.

[0075] In the claims, specification and the above-mentioned drawings of the present invention, unless otherwise explicitly defined, directional words, such as the terms "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inside", "outside", "up", "down", "front", "back", "left", "right", "clockwise", "counterclockwise", etc., indicating directions or positional relationships are based on the directions and positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the specific protection scope of the present invention.

[0076] In the claims, specification and the above drawings of the present invention, unless otherwise clearly defined, if the term "fixed connection" or "fixed connection" is used, it should be understood in a broad sense, that is, any connection method without a displacement relationship and relative rotation relationship between the two, that is to say, including non-detachable fixed connection, detachable fixed connection, integrated connection and fixed connection through other devices or elements.

[0077] In the claims, description and drawings of the present invention, if the terms "include", "have" and their variations are used, they are intended to mean "including but not limited to".

[0078] The bathtub can be used in scenarios where medium and filtration are required, such as sink drains, bathtub drains, shower room drains, or wind tunnels, and the medium can be either gas or liquid. This embodiment takes the bathtub scenario as an example.

[0079] refer to Figure 1-Figure 16 , the bathtub includes a mounting seat 5 and a filter assembly.

[0080] refer to Figure 1-Figure 4The mounting seat 5 is installed at the drain of the bathtub and is connected to the sink in the bathtub accordingly. The way in which the mounting seat 5 is installed to the drain is not limited, and it can be connected by threaded connection, bonding, etc. The mounting seat 5 is provided with a mounting space 51. The longitudinal section of the mounting space 51 is roughly L-shaped in this embodiment. The mounting space 51 has an opening facing upward to communicate with the sink of the bathtub, and another opening is connected to the drain. The bottom of the hole of the mounting space 51 is a non-slip surface, thereby increasing the friction force. The implementation method can be through the texture structure of the bottom of the hole (surface pattern, surface protrusion), non-slip material, etc. The mounting space 51 is provided with a limiting surface 511, and the limiting surface 511 is facing upward and is located above the bottom of the hole of the mounting space 51.

[0081] refer to Figure 1-Figure 4 , Fig.11 The filter assembly is suitable for installation in the installation space 51, and the filter assembly mainly plays the role of water passing and filtering. The filter assembly includes a fixing seat 2, a filter element 1, a friction ring 3 and a pressing assembly 4.

[0082] refer to Fig.10 and Fig.11 The fixing seat 2 is fixedly connected to the filter element 1 and is suitable for being detachably connected to the installation space 51. The fixing seat 2 is provided with a water hole 21. The outer wall of the fixing seat 2 is provided with an installation groove 22 for installing the friction ring 3. In this embodiment, the fixing seat 2 is detachably connected to the installation space 51 by plugging, and the friction ring 3 is abutted against the installation space 51. The friction ring 3 is suitable for deformation and the inner and outer rings are respectively abutted against the fixing seat 2 and the installation space 51 to increase the friction between the two, so that after the fixing seat 2 is installed, it will not easily shake relative to the installation space 51. In other embodiments, the fixing seat 2 can also be threadedly connected to the installation space 51, snap-fitted, etc. to achieve corresponding detachable installation. The bottom outer wall of the fixing seat 2 is also provided with a snap-fit ​​protrusion 23. In this embodiment, the number of the snap-fit ​​protrusions 23 is two, and they have a guiding inclined surface 231.

[0083] refer to Figure 1-Figure 4The pressing assembly 4 is mounted on the fixing seat 2. The pressing assembly 4 includes a pressing member 41. The pressing member 41 is adapted to slide relative to the fixing seat 2 between a first position and a second position. In the first position, the pressing member 41 seals the connection between the water hole 21 and the bathtub sink to achieve water storage in the bathtub sink. In this embodiment, the sealing ring 42 on the pressing member 41 abuts against the wall of the installation space 51 to seal the connection between the water hole 21 and the bathtub sink. In the second position, a water gap 7 connected to the water hole 21 is provided between the pressing member 41 and the installation space 51. The water gap 7 is connected to the bathtub sink to achieve drainage of the bathtub sink. In this embodiment, the sealing ring 42 is provided on the pressing member 41 to seal the water hole 21. The pressing member 41 is provided with a lifting surface 411, which faces the fixing seat 2 and is suitable for being operated at least when the pressing member 41 is in the second position. In this embodiment, the filter assembly is plugged into the installation space 51, and the user can act on the lifting surface 411 to apply a force to the filter assembly to separate from the installation space 51 to separate from the plug-in state.

[0084] In this embodiment, since both states of the pressing member 41 need to be maintained for a long time, the pressing assembly 4 in this embodiment also includes a spring core 43, the pressing member 41 is fixed to the driving end of the spring core 43, the shell of the spring core 43 is fixed to the fixing seat 2, and the spring core 43 is a prior art and will not be described in detail. Of course, in other embodiments, other types of structures can also be used to enable the pressing member 41 to slide and dock.

[0085] refer to Figure 5-Figure 9 , the filter element 1 includes a flexible strip 11 and a connecting portion 12. There are a number of flexible strips 11, which are arranged around the first axis 6 and enclosed with the connecting portion 12 to form a water passage cavity 14. Each flexible strip 11 is also connected to the connecting portion 12. The top of the water passage cavity 14 is connected to the water passage hole 21. In this embodiment, the water passage cavity 14 is used for water passage, but in other embodiments, such as in the wind passage, it is used for wind passage, and the same is true for other scenes for water passage. Among them, each flexible strip 11 is arranged at intervals to form a water passage gap 13 connected to the water passage cavity 14. The water passage cavity 14 and the water passage gap 13 pass water in turn, and the water passage gap 13 is connected to the sewer through the opening of the installation space 51. The distances from the points at the same height of each flexible strip 11 to the first axis 6 can be the same, so that the water passage gap 13 passes water in a divergent manner relative to the water passage cavity 14. The distances from the points at the same height of each flexible strip 11 to the first axis 6 can be different, so that part of the water passage gap 13 is tangential water passage.

[0086] Each flexible strip 11 is adapted to deform when under pressure so as to increase the area of ​​the water gap 13, and to recover the deformation when not under pressure so as to allow the water gap 13 to recover. Specifically, the flexible strip 11 is adapted to deform when pressed against the bottom of the hole of the installation space 51. In this embodiment, the fixing seat 2 is adapted to be seated on the limiting surface 511 to control the degree of deformation of the flexible strip 11. It should be understood that the distance from the limiting surface 511 to the bottom of the installation space 51 should be less than the height of the flexible strip 11, so that the flexible strip 11 is deformed before the fixing seat 2 is seated on the limiting surface 511.

[0087] refer to Figure 5 , Figure 6 , at least one end of each flexible strip 11 is fixedly connected to the connecting part 12, so that each flexible strip 11 is connected as a whole at the end, and the flexible strip 11 can be fixedly connected to the connecting part 12 by plugging, integral manufacturing, snap-on, etc. Preferably, the connecting part 12 is an annular structure, which can be a circular ring, or other shapes such as a square ring. In this embodiment, both ends of the flexible strip 11 have a connecting part 12, so that the ends of each flexible strip 11 are fixed to each other. Specifically, the two connecting parts 12 are respectively a first connecting body 121 and a second connecting body 122. The fixing seat 2, the first connecting body 121, the flexible strip 11, and the second connecting body 122 are arranged in sequence along the water flow direction of the water flow chamber 14 (from top to bottom). The first connecting body 121 is fixedly connected to the fixing seat 2. In this embodiment, refer to Figure 7 , Fig.10 , Fig.11 The first connector 121 is provided with a slot 1211, which is sleeved on the outside of the fixing seat 2 and guided by the guide slope 231 so that the slot 1211 passes over the clamping protrusion 23 and is clamped with the clamping protrusion 23. Of course, in other embodiments, other fixing methods such as threaded connection can also be used. The first connector 121 and the second connector 122 are respectively connected to the two ends of each flexible strip 11.

[0088] In this embodiment, the material of the flexible strip 11 is EPDM or NBR, and the hardness parameter is 80-100, and the compression deformation of the flexible strip 11 can be controlled by changing the hardness. In this embodiment, the filter element 1 is made in one piece, which is convenient for manufacturing and does not require assembly, and the first connector 121 is also flexible, which facilitates the clamping of the first connector 121 and the fixing seat 2.

[0089] In this embodiment, the flexible strips 11 have the same size, and the water gaps 13 have the same size. Of course, in other embodiments, flexible strips 11 or water gaps 13 of different sizes may be provided to achieve a larger water flow in a certain position than in other areas.

[0090] refer to Figure 13-Figure 16, define the end of the flexible strip 11 connected to the first connector 121 as the first end, and the end connected to the second connector 122 as the second end;

[0091] The angle between the line connecting the first end and the second end and the horizontal plane is α, 0°≤α<90°;

[0092] The angle between the tangent line of the first end and the tangent line of the second end is defined as β (when not under pressure), 90°≤β<180°;

[0093] The maximum diameter of the installation space 51 is defined as D1, the height of the flexible strip 11 is defined as H1, and 0.5≤H1 / D1≤3;

[0094] The distance between adjacent first ends (i.e., the water gap 13 at the first end) is defined as S1, and the distance between adjacent second ends (i.e., the water gap 13 at the second end) is defined as S2, and S2 / S1≤1;

[0095] The number of the flexible strips 11 is defined as C1, 3≤C1≤30;

[0096] The maximum diameter of the filter element 1 is defined as D2 (in this embodiment, the outer diameter of the first connector 121 ), and D2 ≤ D1;

[0097] The maximum diameter of the second connector 122 is defined as D3, 0<D3 / D2≤1;

[0098] Define the thickness of the first end as L2, the thickness of the second end as L1, and 0.2≤L2 / L1≤5.

[0099] Based on the above, preferably, the inner ring size of the first connector 121 is larger than the inner ring size of the second connector 122, and each flexible strip 11 is suitable for deforming in a direction away from the first axis 6 when under pressure, so that the volume of the water passage cavity 14 and the area of ​​the water passage gap 13 are increased. Specifically, when the flexible strip 11 is not under pressure, it bends in a direction away from the first axis 6, and along the water passage direction of the water passage cavity 14, each flexible strip 11 gradually approaches the first axis 6, generally in a cone shape, so that the flexible strip 11 has a tendency to deform more easily in a direction away from the first axis 6. Along the water passage direction of the water passage cavity 14, the width of each flexible strip 11 gradually decreases, and the width of the water passage gap 13 gradually decreases. The wall surface of the flexible strip 11 away from the water passage cavity 14 is a non-slip surface, which can be realized by a texture structure (surface pattern, surface protrusion), non-slip material, etc. In this embodiment, since the flexible strips 11 gradually approach the first axis 6 , the second connecting body 122 can also be regarded as being formed by connecting the ends of the flexible strips 11 away from the fixing base 2 .

[0100] During installation, the filter element 1 and the friction ring are first installed on the fixing seat 2, and then the pressing assembly 4 is installed on the fixing seat 2 to complete the filter assembly.

[0101] Then, the filter assembly is inserted into the installation space 51 of the mounting seat 5, the friction ring cooperates with the installation space 51, the second connector 122 first contacts the bottom of the hole of the installation space 51, and then the filter assembly is pressed down. At this time, the flexible strip 11 begins to deform from a cone-like structure to a lantern-like structure, and the water passage cavity 14 and the water passage gap 13 both become larger until the mounting seat 5 is seated on the limiting surface 511. At this time, the flexible strip 11 no longer deforms and the installation is completed. At this time, although the flexible strip 11 has the force to restore the deformation, under the action of the gravity of the filter assembly and the friction of the friction ring, the flexible strip 11 will not restore the deformation, and the fixed seat 2 will not be displaced.

[0102] When in use, the switching between the water discharge state and the water storage state is achieved by pressing the pressing member 41 .

[0103] During the drainage process, although buoyancy is generated on the filter assembly, the filter assembly will not move upward due to the gravity of the filter assembly and the friction of the friction ring.

[0104] When cleaning is needed, you can put your hand into the water gap 7 between the installation space 51 and the pressing piece 41, apply force to the lifting surface 411, and pull out the entire filter assembly. At this time, the flexible strips 11 gradually move away from the bottom of the hole of the installation space 51 and restore to the cone-like structure. The water gap 13 and the water cavity 14 become smaller, and debris gathers inside the filter net for unified cleaning. In addition, the water gap 13 becomes smaller, and debris is not easy to fall out from the water gap 13, and can be brought out by the filter net at the same time.

[0105] During cleaning, since the water gap 13 is formed by the gaps between the flexible strips 11 and is in a strip shape, debris is not easily entangled compared to a mesh structure. Debris can be pushed from the upper end of the water gap 13 to the lower end of the debris and pulled out from the inner circle of the second connector 122 (of course, debris can also be pulled out from the water gap 13) to remove the debris.

[0106] Compared with the prior art, this embodiment has the following beneficial effects:

[0107] In an exemplary embodiment, a filter element 1 includes a flexible strip 11 and a connecting portion 12 .

[0108] There are a number of flexible strips 11, which are arranged around the first axis 6 and enclosed with the connecting portion 12 to form a water passage cavity 14. The flexible strips 11 are arranged at intervals to form water passage gaps 13 that are sequentially connected to the water passage cavity 14. The flexible strips 11 are used to block debris for filtering, and the water passage gaps 13 are used to achieve water passage. Since the flexible strips 11 are strip-shaped, the water passage gaps 13 formed by the intervals are also strip-shaped. Compared with the mesh-shaped water passage gaps 13, it is convenient to produce, and fewer locations need to be cleaned, and hair is not easy to be entangled, so it is convenient to clean.

[0109] Furthermore, each flexible strip 11 is adapted to deform when under pressure to increase the area of ​​the water gap 13, thereby increasing the water flow area and improving the water flow through the deformation. The water flow discharge is increased through this deformation to prevent blockage. The flexible strip 11 is adapted to recover the deformation when not under pressure to allow the water gap 13 to recover, so that when the pressure is released, generally when it is removed for cleaning, the water gap 13 can be reduced to prevent foreign matter such as hair from leaking out of the water gap 13.

[0110] At least one end of each flexible strip 11 is fixedly connected to the connecting part 12 to ensure the integrity of the filter element 1, so that each flexible strip 11 can be transported or installed and disassembled together. The connecting part 12 is an annular structure. Taking the example that the two ends of the flexible strip 11 are respectively connected to the first connector 121 and the second connector 122, the first connector 121, the flexible strip 11, and the second connector 122 are successively arranged along the water flow direction of the water flow chamber 14. If the first connector 121 is an annular structure, it can have a larger water flow area to communicate with the water flow chamber 14. If the second connector 122 is an annular structure, it is used to quickly clean the intercepted filter material in the internal water flow chamber 14. Of course, only the first connector 121 or the second connector 122 can be provided to achieve the corresponding effect.

[0111] In an exemplary embodiment, each flexible strip 11 is adapted to deform in a direction away from the first axis 6 when under pressure, so that the volume of the water passage cavity 14 and the area of ​​the water passage gap 13 are increased, so that the water passage cavity 14 has a larger water passage area, and more debris can be stored in the water passage cavity 14 to prevent easy clogging. When not under pressure, the water passage cavity 14 is allowed to recover, so that the debris gathers inside for uniform cleaning.

[0112] In an exemplary embodiment, along the water flow direction of the water cavity 14, each flexible strip 11 gradually approaches the first axis 6, so that each flexible strip 11 is suitable for being more easily deformed in the direction away from the first axis 6 when under pressure, and when each flexible strip 11 is not under pressure, each flexible strip 11 recovers to form a claw-like structure, and the area of ​​the water cavity 14 gradually decreases along its water flow direction, which can make it easier to clamp debris and prevent the debris from falling.

[0113] And / or the flexible strip 11 bends in a direction away from the first axis 6 when not under pressure, so that when under pressure, the flexible strip 11 tends to deform in a direction away from the first axis 6, thereby ensuring that the volume of the water cavity 14 increases.

[0114] In an exemplary embodiment, along the water flow direction of the water flow cavity 14, the width of each flexible strip 11 gradually decreases or increases, so that the end with a smaller width can be more easily deformed, while the end with a larger width can have better strength to ensure the stability of the structure. And / or along the water flow direction of the water flow cavity 14, the width of each water flow gap 13 gradually decreases, so that the upper part is easy to pass water and the lower part is easy to retain debris.

[0115] In an exemplary embodiment, when the flexible strip 11 is under pressure, the wall surface of the flexible strip 11 facing away from the water chamber 14 may come into contact with other objects. In order to prevent the flexible strip 11 from being severely deformed and damaged under the action of water pressure, the wall surface of the flexible strip 11 facing away from the water chamber 14 is set as an anti-slip surface to increase the friction with other objects, so that the flexible strip 11 can withstand a certain water pressure.

[0116] In an exemplary embodiment, the connecting portion 12 includes a first connecting body 121 and a second connecting body 122 , and both ends of each flexible strip 11 are respectively connected to the first connecting body 121 and the second connecting body 122 , so as to ensure the strength of the filter screen.

[0117] In an exemplary embodiment, the end of the flexible strip 11 connected to the first connector 121 is defined as the first end, and the end connected to the second connector 122 is defined as the second end;

[0118] The angle between the line from the first end to the second end and the horizontal plane is α, 0°≤α<90°,

[0119] Define the angle between the tangent line of the first end and the tangent line of the second end as β, 90°≤β<180°,

[0120] The spacing between the first ends is defined as S1 (i.e., the water gap 13 at the first end), and the spacing between the second ends is defined as S2 (i.e., the water gap 13 at the second end), S2 / S1≤1, and the shape is such that water can easily pass through the upper part and debris can easily accumulate at the lower part;

[0121] The number of the flexible strips 11 is defined as C1, 3≤C1≤30, to ensure the water flow rate and filtering capacity;

[0122] The maximum diameter of the first connector 121 is defined as D2, the maximum diameter of the second connector 122 is defined as D3, 0<D3 / D2≤1, and the structure is similar to a clamping claw.

[0123] The thickness of the first end is defined as L2, the thickness of the second end is defined as L1, and 0.2≤L2 / L1≤5, so that one end is easy to deform and the other end ensures strength.

[0124] In an exemplary embodiment, a filter assembly is suitable for installation in an installation space 51, comprising a fixing seat 2 and the above-mentioned filter element 1, and has the beneficial effects brought by the above-mentioned filter element 1. The connecting portion 12 comprises a first connecting body 121, the fixing seat 2, the first connecting body 121 and the flexible strip 11 are arranged in sequence along the water flow direction, the fixing seat 2 is fixedly connected to the first connecting body 121, and is suitable for being detachably connected to the installation space 51, the fixing seat 2 is provided with a water flow hole 21 connected to the water flow chamber 14, the flexible strip 11 is suitable for being deformed when pressing against the bottom of the hole of the installation space 51, and the position of the fixing seat 2 is fixed relative to the installation space 51 through the detachable connection between the fixing seat 2 and the installation space 51, because the two ends of the flexible strip 11 respectively apply force to the bottom of the hole of the installation space 51 and the fixing seat 2, the flexible strip 11 will not change its position, and the deformation of the flexible strip 11 will not be restored, thereby ensuring the stability of the filter element 1 when in use, when it is necessary to clean up debris, the fixing seat 2 is disassembled relative to the installation space 51, and the filter assembly can be disassembled, thereby cleaning the filter element 1.

[0125] In an exemplary embodiment, the fixing seat 2 is plugged into the installation space 51 to achieve a detachable connection, which is more convenient. Since the flexible strip 11 has restoring force and there will be buoyancy of water in the usage scenario, the gravity of the filter assembly may not be able to ensure the stability of the installation. By setting a friction ring 3, the friction ring 3 is installed on the outer wall of the fixing seat 2 and is suitable for resisting the installation space 51, thereby increasing friction and ensuring installation stability.

[0126] In an exemplary embodiment, the pressing component 4 is installed on the fixing base 2, and the pressing component 4 includes a pressing piece 41. The pressing piece 41 is suitable for sliding between a first position and a second position relative to the fixing base 2. When in the first position, the pressing piece 41 seals the water hole 21. When in the second position, there is a water gap 7 between the pressing piece 41 and the installation space 51 that is connected to the water hole 21, so as to realize the functions of water passing and water storage by pressing.

[0127] In an exemplary embodiment, the pressing member 41 is provided with a lifting surface 411, which faces the fixing seat 2 and is suitable for being operated at least when the pressing member 41 is in the second position, so that the fixing seat 2 can be detached from the connection with the installation space 51 by lifting the lifting surface 411.

[0128] In an exemplary embodiment, a bathtub includes a mounting seat 5 and the above-mentioned filter assembly, wherein the mounting seat 5 is provided with a mounting space 51 and has the beneficial effects of the above-mentioned filter assembly.

[0129] In an exemplary embodiment, the bottom of the hole of the installation space 51 is a non-slip surface, so as to increase the friction with the flexible strip 11, so that the flexible strip 11 can withstand a certain water pressure.

[0130] In an exemplary embodiment, the installation space 51 is provided with a limiting surface 511, and the fixing seat 2 is suitable for being located on the limiting surface 511 to control the deformation degree of the flexible strip 11, to prevent excessive deformation and damage, and to prevent insufficient deformation and the area of ​​the water gap 13 from increasing significantly.

[0131] In an exemplary embodiment, the maximum diameter of the installation space 51 is defined as D1, the height of the flexible strip 11 is defined as H1, and 0.5≤H1 / D1≤3;

[0132] The maximum diameter of the first connector 121 is defined as D2, where D2≤D1, so as to prevent the filter assembly from being difficult to be plugged into the installation space 51.

[0133] The description of the above specification and embodiments is used to explain the protection scope of the present invention, but does not constitute a limitation on the protection scope of the present invention. Through the enlightenment of the present invention or the above embodiments, ordinary technicians in this field can obtain modifications, equivalent substitutions or other improvements to the embodiments of the present invention or part of the technical features thereof through logical analysis, reasoning or limited experiments, which should be included in the protection scope of the present invention.

Claims

1. A filter element, characterized in that: It comprises a connecting portion (12) and a plurality of flexible strips (11), The connecting portion (12) is an annular structure, and at least one end of each of the flexible strips (11) is fixedly connected to the connecting portion (12); The flexible strips (11) are arranged around the first axis (6) and enclose the connecting portion (12) to form a water-passing cavity (14). The flexible strips (11) are arranged at intervals to form a water-passing gap (13) through which water passes in sequence with the water-passing cavity (14). The flexible strips (11) are adapted to deform when under pressure so as to increase the area of ​​the water-passing gap (13), and to recover the deformation when not under pressure so as to allow the water-passing gap (13) to recover.

2. A filter element according to claim 1, characterized in that: Each of the flexible strips (11) is adapted to deform in a direction away from the first axis (6) when under pressure, so as to increase the volume of the water passage cavity (14), and to allow the deformation of the flexible strip (11) to recover when not under pressure.

3. A filter element according to claim 2, characterized in that: Along the water flow direction of the water flow cavity (14), each of the flexible strips (11) gradually approaches the first axis (6); And / or the flexible strip (11) bends in a direction away from the first axis (6) when not under pressure.

4. A filter element according to claim 1, characterized in that: Along the water flow direction of the water flow cavity (14), the width of each of the flexible strips (11) gradually decreases or increases. And / or along the water flow direction of the water flow cavity (14), the width of each water flow gap (13) gradually decreases.

5. A filter element according to claim 2, characterized in that: The wall surface of the flexible strip (11) facing away from the water passage chamber (14) is a non-slip surface.

6. A filter element according to claim 1, characterized in that: The connecting part (12) has two parts, namely a first connecting body (121) and a second connecting body (122); two ends of each of the flexible strips (11) are connected to the first connecting body (121) and the second connecting body (122), respectively; the end of the flexible strip (11) connected to the first connecting body (121) is defined as the first end, and the end connected to the second connecting body (122) is defined as the second end; the parameters of the filter element are one or more of the following: The angle between the line connecting the first end and the second end and the horizontal plane is α, 0°≤α<90°; Define the angle between the tangent line of the first end and the tangent line of the second end as β, 90°≤β<180°; Define the distance between adjacent first ends as S1, the distance between adjacent second ends as S2, S2 / S1≤1; The number of the flexible strips (11) is defined as C1, 3≤C1≤30; The maximum diameter of the first connector (121) is defined as D2, the maximum diameter of the second connector (122) is defined as D3, and 0<D3 / D2≤1; Define the thickness of the first end as L2, the thickness of the second end as L1, and 0.2≤L2 / L1≤5.

7. A filter assembly, suitable for installation in an installation space (51), characterized in that: It comprises a fixing seat (2) and a filter element (1) as described in any one of claims 1 to 6, wherein the connecting portion (12) comprises a first connecting body (121), the fixing seat (2), the first connecting body (121) and the flexible strip (11) are arranged in sequence along the water flow direction, the fixing seat (2) is fixedly connected to the first connecting body (121), and is suitable for being detachably connected to the installation space (51), the fixing seat (2) is provided with a water flow hole (21) connected to the water flow chamber (14), and the flexible strip (11) is suitable for being deformed when pressed against the bottom of the hole of the installation space (51).

8. A filter assembly according to claim 7, characterized in that: It also comprises a friction ring (3), wherein the friction ring (3) is mounted on the outer wall of the fixing seat (2) and is suitable for abutting against the installation space (51), and the fixing seat (2) is plugged into the installation space (51).

9. A filter assembly according to claim 7 or 8, characterized in that: The invention also comprises a pressing assembly (4), wherein the pressing assembly (4) is mounted on the fixing seat (2), and the pressing assembly (4) comprises a pressing piece (41), wherein the pressing piece (41) is adapted to slide between a first position and a second position relative to the fixing seat (2), wherein when in the first position, the pressing piece (41) seals the water hole (21), and when in the second position, a water-passing gap (7) communicating with the water hole (21) is provided between the pressing piece (41) and the mounting space (51).

10. A filter assembly according to claim 9, characterized in that: The pressing member (41) is provided with a lifting surface (411), the lifting surface (411) faces the fixing seat (2) and is suitable for being operated at least when the pressing member (41) is in the second position.

11. A bathtub, characterized in that: It comprises a mounting seat (5) and a filter assembly as claimed in any one of claims 7 to 10, wherein the mounting seat (5) is provided with the mounting space (51).

12. A bathtub according to claim 11, characterized in that: The installation space (51) is provided with a limiting surface (511), and the fixing seat (2) is suitable for being seated on the limiting surface (511) to control the degree of deformation of the flexible strip (11).

13. The bathtub according to claim 11, characterized in that: The maximum diameter of the installation space (51) is defined as D1, the height of the flexible strip (11) is defined as H1, and 0.5≤H1 / D1≤3; The maximum diameter of the first connector (121) is defined as D2, where D2≤D1.

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