Lamination assembly, filter element and pre-filter

Abstract

The utility model discloses a lamination assembly, a filter element and a prefilter, which are applied to the technical field of filtration, the lamination assembly comprises a plurality of annular lamination monomers, the first surface of each lamination monomer is provided with a plurality of first grooves, and the second surface of each lamination monomer is provided with a plurality of second grooves; a plurality of filtering teeth are arranged on the outer edges of the lamination single bodies and are circumferentially arranged along the outer edges of the lamination single bodies; the first grooves extend to the first sides of the filtering teeth, the second grooves extend to the second sides of the filtering teeth, and the filtering teeth of the adjacent lamination single bodies are arranged in a staggered mode in the circumferential direction of the lamination single bodies. According to the lamination assembly disclosed by the utility model, the lamination monomers are arranged in a staggered manner, so that the filtering teeth on each lamination monomer form an uneven columnar surface, impurity particles with specific sizes cannot be attached to the groove inlets of the first groove and the second groove, blockage is avoided, the filtering effect is good, a filter screen is not needed, the cost is saved, and the production efficiency is improved. The assembly is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of filtration, in particular to a laminate assembly, a filter element and a pre-filter. Background Art

[0002] The city's water supply pipes will cause water-using equipment to malfunction due to rust, mud and other impurities. Therefore, it is necessary to install a filtering device on the water-using equipment. The pre-filter is the first coarse filtration device for the water used in the whole house. It can filter mud, rust and large particles in tap water.

[0003] In the related art, the filter element of the pre-filter includes a frame and a stack of laminations, which are mounted on the frame and used together with a matching filter screen. A channel is provided in the frame, and water flows through the filter screen and the laminations before entering the frame. The laminations in the related art require a matching filter screen design, which is costly and involves many steps. It is difficult to rinse clean during use, resulting in many impurities being blocked between the laminations, greatly reducing the recovery rate and preventing the machine from returning to its optimal functional state. In addition, the pre-filter in the related art generally uses a stainless steel filter screen, which can easily clog the filter screen in areas with poor water quality, making it difficult to rinse, affecting the life of the machine and the user experience.

[0004] Therefore, how to improve the filtering effect of the filter element is a technical problem that those skilled in the art currently need to solve. Utility Model Content

[0005] The utility model aims to provide a laminated component, a filter element and a pre-filter, which can prolong the service life of the filter element and make flushing more thorough.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A laminate assembly comprises a plurality of annular laminate monomers, wherein the first surface of the laminate monomers is provided with a plurality of first grooves, and the second surface is provided with a plurality of second grooves; the outer edge of the laminate monomers is provided with a plurality of filter teeth, and the filter teeth are arranged circumferentially along the outer edge of the laminate monomers; the first grooves extend to the first side of the filter teeth, and the second grooves extend to the second side of the filter teeth, and the filter teeth of adjacent laminate monomers are staggered along the circumference of the laminate monomers.

[0008] On the other hand, the first groove and the second groove are both inclined relative to the radial direction of the laminated monomer, and the inclination directions of the first groove and the second groove are opposite; and the inclination angles of the first grooves are the same, and / or the inclination angles of the second grooves are the same.

[0009] On the other hand, the number of the first grooves, the second grooves and the filter teeth is the same and corresponds one to one; and the circumferential misalignment angles between adjacent laminated units at different positions are different.

[0010] The utility model also provides a filter element, comprising a frame, a bottom cover and the above-mentioned laminated assembly, wherein the laminated assembly is sleeved on the frame, and the bottom cover is installed at one end of the frame.

[0011] On the other hand, it also includes an elastic component for resetting the stacking assembly, and the elastic component is located between the stacking assembly and the bottom cover; the stacking assembly includes a plurality of stacking monomers, and the inner edges of the stacking monomers are provided with conical surfaces so that the stacking monomers are separated from each other in the backwash state and compress the elastic component.

[0012] On the other hand, it also includes a pressure cover, which is sleeved on the frame and located between the elastic component and the laminate assembly.

[0013] On the other hand, a first groove is provided on the side of the pressure cover close to the stacking assembly, and the size of the first groove is adapted to the size of the stacking assembly to limit the stacking assembly; and / or, a second groove is provided on the side of the pressure cover close to the elastic component, and the size of the second groove is adapted to the size of the elastic component to allow one end of the elastic component to be placed therein.

[0014] On the other hand, a third groove is provided on a side of the bottom cover close to the elastic component. The size of the third groove matches the size of the elastic component so as to accommodate the other end of the elastic component.

[0015] On the other hand, the conical surface includes a first conical surface and a second conical surface, the first conical surface and the second conical surface are inclined in opposite directions, and the first conical surface and the second conical surface are away from each other, and the width of the first conical surface is greater than the width of the second conical surface.

[0016] The utility model also provides a pre-filter, comprising the filter element.

[0017] The stacking assembly provided by the present invention is characterized in that a plurality of filter teeth are provided on the outer edge of the stacking monomer, and the filter teeth are arranged circumferentially along the outer edge of the stacking monomer; the first groove extends to the first side of the filter tooth, and the second groove extends to the second side of the filter tooth, that is, the first groove and the second groove extend from different directions of the filter tooth, so as to meet the requirements of water flows in different directions from the outer edge of the stacking monomer to the inner edge of the stacking monomer; and the filter teeth of adjacent stacking monomers are staggered along the circumference of the stacking monomer. By staggering the stacking monomers, the filter teeth on each stacking monomer form an uneven columnar surface, so that impurity particles of a specific size cannot fit into the groove entrances of the first groove and the second groove, thereby avoiding blockage, having a good filtering effect, and no need to use a filter screen, thus saving costs and facilitating assembly.

[0018] The filter element provided by the present invention is provided with an elastic component between the stacking assembly and the bottom cover, and the elastic component is used to reset the stacking assembly; and a conical surface is provided on the inner edge of the stacking monomer. When the filter element is in a backwashing state, water flows to flush the conical surface of the stacking monomer. After being subjected to radial impact force, the conical surface generates a certain axial component force, thereby pushing each stacking monomer to separate, which can effectively disperse the stacked stacking assembly, increase the gap between adjacent stacking monomers, and effectively remove impurities and dirt; when the stacking monomers separate from each other, the elastic component is compressed. After the backwashing is completed, the conical surface is no longer subjected to radial impact force, and the elastic component pushes the stacking monomer to reset, return to the initial state, and restore the filtering effect. The filter element provided by the present invention can separate each stacking monomer during backwashing through the provision of the elastic component and the conical surface, thereby making the backwashing more sufficient and thorough.

[0019] The pre-filter provided by the present invention is provided with the above-mentioned filter element. Since the filter element has the above-mentioned technical effects, the pre-filter provided with the filter element should also have corresponding technical effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 This is a structural schematic diagram of a specific embodiment of a laminated unit in a laminated assembly provided by the present invention;

[0022] Figure 2 This is a structural diagram of a specific embodiment of the lamination assembly provided by the present invention;

[0023] Figure 2-1 for Figure 2 A partial enlarged view of the lamination assembly shown;

[0024] Figure 3 Schematic diagram of the structure of the tapered surface in the laminated monomer;

[0025] Figure 4 It is a schematic diagram of the force on the conical surface under backwashing state;

[0026] Figure 5 This is a structural diagram of a specific embodiment of the filter element provided by the utility model;

[0027] Figure 6 for Figure 5 A schematic diagram of the structure of the skeleton in the filter element shown;

[0028] Figure 7 for Figure 5 Schematic diagram of water flow direction when the filter element is in boiler state;

[0029] Figure 8 for Figure 5 Schematic diagram of water flow direction when the filter element is in backwash state.

[0030] Reference numerals:

[0031] Lamination assembly 1; lamination unit 11; first groove 12; second groove 13; filter teeth 14; first side 141; second side 142; conical surface 15; cylindrical surface 16; skeleton 2; outer wall 21; water hole 22; external thread 23; bottom cover 3; elastic component 4; pressure cover 5. DETAILED DESCRIPTION

[0032] The core of the utility model is to provide a laminated component, a filter element and a pre-filter, which can save costs and facilitate assembly.

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] Please refer to Figures 1 to 4 , Figure 1 This is a structural schematic diagram of a specific embodiment of a laminated unit in a laminated assembly provided by the present invention; Figure 2This is a structural schematic diagram of a specific embodiment of the lamination assembly provided by the utility model; Figure 3 Schematic diagram of the structure of the tapered surface in the laminated monomer; Figure 4 Schematic diagram of the force on the conical surface under backwashing state.

[0035] In this embodiment, the laminate assembly 1 includes a plurality of annular laminate monomers 11, a plurality of first grooves 12 are provided on the first surface of the laminate monomer 11, and a plurality of second grooves 13 are provided on the second surface. The first grooves 12 and the second grooves 13 extend from the inner edge of the laminate monomer 11 to the outer edge. The first grooves 12 contact the plurality of second grooves 13 of the adjacent laminate monomers 11 in sequence, and the second grooves 13 contact the plurality of first grooves 12 of the adjacent laminate monomers 11 in sequence, thereby forming a complex water flow path, which is conducive to blocking foreign particles; the outer edge of the laminate monomer 11 is provided with a plurality of filter teeth 14, and the filter teeth 14 can be right-angled teeth, that is, the outer edge of the filter teeth 14 forms a right-angled corner to block the magazine particles of a specific size, of course The outer edge of the filter teeth 14 can also form an obtuse angle or an acute angle; the filter teeth 14 are arranged circumferentially along the outer edge of the laminated monomer 11, and can be evenly arranged to ensure the uniformity of the filtering effect; the first groove 12 extends to the first side 141 of the filter tooth 14, and the second groove 13 extends to the second side 142 of the filter tooth 14, that is, the first groove 12 and the second groove 13 extend from different directions of the filter tooth 14; and the filter teeth 14 of adjacent laminated monomers 11 are staggered along the circumference of the laminated monomer 11. Specifically, when the laminated monomers 11 are stacked, irregular stacking is selected to form irregular protrusions on the surface of the laminated assembly 1, which effectively prevents impurity particles of a specific size from entering the first groove 12 or the second groove 13.

[0036] The stacking assembly 1 is provided with a plurality of filter teeth 14 on the outer edge of the stacking monomer 11, and the filter teeth 14 are arranged circumferentially along the outer edge of the stacking monomer 11; the first groove 12 extends to the first side 141 of the filter tooth 14, and the second groove 13 extends to the second side 142 of the filter tooth 14, so that water flows in different directions flow from the outer edge of the stacking monomer 11 to the inner edge of the stacking monomer 11; and the filter teeth 14 of adjacent stacking monomers 11 are staggered along the circumference of the stacking monomer 11. By staggering the stacking monomers 11, the filter teeth 14 on each stacking monomer 11 form an uneven columnar surface 16, so that impurity particles of a specific size cannot fit into the groove entrances of the first groove 12 and the second groove 13, thereby avoiding blockage, achieving good filtering effect, eliminating the need for a filter screen, saving costs, and facilitating assembly.

[0037] In some embodiments, the first groove 12 and the second groove 13 are both inclined relative to the radial direction of the laminated body 11, and the inclination directions of the first groove 12 and the second groove 13 are opposite, so as to achieve water flow in different directions into the laminated assembly 1;

[0038] In some embodiments, the first grooves 12 have the same inclination angle, and / or the second grooves 13 have the same inclination angle; processing is convenient and water flow is stable.

[0039] In some embodiments, the number of the first grooves 12, the second grooves 13 and the filter teeth 14 is the same and corresponds one to one; specifically, the first side 141 and the second side 142 of the filter tooth 14, that is, the two side surfaces of the filter tooth 14, correspond to a first groove 12 and a second groove 13 respectively, so that the first groove 12 and the second groove 13 extend from different directions of the filter tooth 14; the first groove 12, the second groove 13 and the filter teeth 14 can be evenly arranged along the circumference of the laminated monomer 11 to ensure the uniformity of the filtering effect.

[0040] In some embodiments, the circumferential misalignment angles between adjacent laminated cells 11 at different locations vary. Specifically, by stacking the laminated cells 11 unevenly, the filter teeth 14 form an uneven cylindrical surface 16 on the outer periphery of the laminated assembly 1, similar to a filter screen covering the outer ends of the inlets of the first and second grooves 12, 13. This prevents impurity particles of a certain size from adhering to the inlets of the first and second grooves 12, 13, thereby preventing blockage. Furthermore, because the laminated cells 11 are stacked in different annular directions, the first and second grooves 12, 13 cooperate to form a plurality of channels with different cross-sectional shapes, thereby filtering impurity particles above a certain size.

[0041] Please refer to Figures 5 to 8 , Figure 5 This is a structural diagram of a specific embodiment of the filter element provided by the utility model; Figure 6 for Figure 5 A schematic diagram of the structure of the skeleton 2 in the filter element shown; Figure 7 for Figure 5 Schematic diagram of water flow direction when the filter element is in boiler state; Figure 8 for Figure 5 Schematic diagram of water flow direction when the filter element is in backwash state.

[0042] The present invention also provides a filter element including the above-mentioned laminated assembly 1. In this embodiment, the filter element includes a skeleton 2, a bottom cover 3 and the above-mentioned laminated assembly 1. The laminated assembly 1 is sleeved on the skeleton 2, and the bottom cover 3 is installed at one end of the skeleton 2.

[0043] In some embodiments, the lamination assembly 1 is sleeved on the outer wall 21 of the skeleton 2, and a plurality of neatly arranged water holes 22 are provided around the periphery of the skeleton 2 for water to flow between the outer and inner sides of the skeleton 2. An external thread 23 is provided at the lower end, which is connected with the internal thread of the bottom cover 3.

[0044] Furthermore, the filter element further includes an elastic component 4 for resetting the stacking assembly 1. The elastic component 4 is located between the stacking assembly 1 and the bottom cover 3. One end of the elastic component 4 abuts against the stacking assembly 1, and the other end abuts against the bottom cover 3. When the elastic component 4 is in the initial state, the elastic component 4 is in a compressed state, that is, when the stacking assembly 1 is gathered and in a filtering state, the elastic component 4 has a certain elongation force, thereby ensuring that the stacking monomers 11 in the stacking assembly 1 fit together. Of course, the elastic component 4 can be appropriately compressed to avoid the subsequent stacking monomers 11 from being unable to retract during backwashing. Method of separation; the laminate assembly 1 includes a plurality of laminate monomers 11, and the inner edge of the laminate monomer 11 is provided with a tapered surface 15. In the laminate assembly 1, the tapered surface 15 of each laminate monomer 11 is inclined from the side close to the skeleton 2 to the side away from the skeleton 2 toward the direction close to and away from the elastic component 4. This arrangement is to ensure that when the backwash water flows through the laminate assembly 1, the laminate monomers 11 all move toward the direction of the elastic component 4, and can quickly disperse the laminate monomers 11 so that the laminate monomers 11 are separated from each other in the backwash state and compress the elastic component 4.

[0045] The filter element provided by the present invention has an elastic component 4 disposed between the lamination assembly 1 and the bottom cover 3, the elastic component 4 being used to reset the lamination assembly 1; and a tapered surface 15 disposed on the inner edge of the lamination unit 11. When the filter element is in a backwashing state, water flows through the tapered surface 15 of the lamination unit 11. After being subjected to a radial impact force F, the tapered surface 15 is decomposed into a force F1 along the tapered surface 15 and a certain axial component force F2, thereby pushing the lamination units 11 to separate, effectively dispersing the stacked lamination assembly 1, increasing the gap between adjacent lamination units 11, and effectively removing impurities and dirt. When the lamination units 11 separate from each other, the elastic component 4 is compressed. After the backwash is completed, the tapered surface 15 is no longer subjected to the radial impact force, and the elastic component 4 pushes the lamination units 11 to reset, returning to their initial state, and restoring the filtering effect. The filter element provided by the present invention can separate the lamination units 11 during backwashing through the provision of the elastic component 4 and the tapered surface 15, thereby making the backwash more sufficient and thorough.

[0046] In some embodiments, a pressure cover 5 is also included. The pressure cover 5 is mounted on the frame 2 and is located between the elastic component 4 and the laminated assembly 1. The upper end of the pressure cover 5 squeezes the laminated assembly 1 and the lower end abuts against the spring, thereby providing good support for the laminated assembly 1 and facilitating the limiting of the elastic component 4.

[0047] In some embodiments, a first groove is provided on one side of the pressure cover 5 close to the stacking assembly 1. The size of the first groove is adapted to the size of the stacking assembly 1 to limit the stacking assembly 1. Some stacking units 11 in the stacking assembly 1 are located in the first groove. The first groove is an annular groove with a good limiting effect.

[0048] In some embodiments, a second groove is provided on one side of the pressure cover 5 close to the elastic component 4. The size of the second groove is adapted to the size of the elastic component 4 so that one end of the elastic component 4 can be placed therein. The second groove can limit the elastic component 4 to ensure that the position of the elastic component 4 is stable.

[0049] In some embodiments, a third groove is provided on the side of the bottom cover 3 close to the elastic component 4, and the size of the third groove is adapted to the size of the elastic component 4 so that the other end of the elastic component 4 can be placed therein; similarly, by setting the second groove and the third groove, the two ends of the elastic component 4 are limited to ensure that the position of the elastic component 4 is stable during the extension and contraction process.

[0050] In some embodiments, the elastic component 4 is a spring and is sleeved on the skeleton 2; the second groove and the third groove are both annular grooves.

[0051] In some embodiments, the conical surface 15 includes a first conical surface 15 and a second conical surface 15. The inclination directions of the first conical surface 15 and the second conical surface 15 are opposite, and the first conical surface 15 and the second conical surface 15 are away from each other. The first conical surface 15 and the second conical surface 15 face different directions. The width of the first conical surface 15 is greater than the width of the second conical surface 15. Of course, the width of the first conical surface 15 can also be smaller than the width of the second conical surface 15. Therefore, when the first conical surface 15 and the second conical surface 15 are flushed with water, after being subjected to radial impact force, axial components of different sizes are generated in two directions, which can effectively disperse the stacked laminated monomers 11, increase the gap between the laminated monomers 11, and effectively remove impurities and dirt.

[0052] Specifically, such as Figure 7 As shown, in the filtering state: the source water is filtered by the laminated assembly 1 and other components of the filter element, and the clean water reaches the inside of the skeleton 2, and is then transported to the water-using rear end through the water outlet; in the sewage discharge state: the water flows out from the inside of the skeleton 2, the filter element enters the reverse flushing state, the laminated body spreads out, and the water flows from the inside of the skeleton 2 to the outside, which also drives impurities, mud, etc. to be quickly discharged.

[0053] This filter element, through an upgraded design on the laminated body, combines the laminated body with multiple overlapping and irregular patterns, so that the cross-sections of the water holes 22 are different, thereby forming an intricate network of water holes 22 to meet the filtering requirements; at the same time, the pre-filter can meet the requirements of pure laminated filtration, and the laminated body is loosened during backwashing, so the flushing is more sufficient and thorough.

[0054] In addition to the above-mentioned filter element, the present invention also provides a pre-filter including the above-mentioned filter element. For the structure of other parts of the pre-filter, please refer to the relevant technology and will not be described in detail in this article.

[0055] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0056] The filter element provided by the present invention has been introduced in detail above. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above examples is only intended to help understand the method and core concept of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications also fall within the scope of protection of the present invention.

Claims

1. A lamination assembly, characterized in that: The invention comprises a plurality of annular laminated monomers (11), wherein a first surface of the laminated monomers (11) is provided with a plurality of first grooves (12), and a second surface thereof is provided with a plurality of second grooves (13); a plurality of filter teeth (14) are provided on the outer edge of the laminated monomers (11), and the filter teeth (14) are arranged circumferentially along the outer edge of the laminated monomers (11); the first grooves (12) extend to the first side (141) of the filter teeth (14), and the second grooves (13) extend to the second side (142) of the filter teeth (14), and the filter teeth (14) of adjacent laminated monomers (11) are arranged in a staggered manner along the circumference of the laminated monomers (11).

2. The lamination assembly according to claim 1, wherein: The first groove (12) and the second groove (13) are both arranged to be inclined relative to the radial direction of the laminated monomer (11), and the inclination directions of the first groove (12) and the second groove (13) are opposite; and the inclination angles of the first grooves (12) are the same, and / or the inclination angles of the second grooves (13) are the same.

3. The lamination assembly according to claim 2, wherein: The first grooves (12), the second grooves (13) and the filter teeth (14) are of the same number and correspond one to one; and the circumferential misalignment angles between adjacent laminated monomers (11) at different positions are different.

4. A filter element, characterized in that: It comprises a frame (2), a bottom cover (3) and a lamination assembly (1) according to any one of claims 1 to 3, wherein the lamination assembly (1) is sleeved on the frame (2), and the bottom cover (3) is installed at one end of the frame (2).

5. The filter element according to claim 4, characterized in that The invention also includes an elastic component (4) for resetting the lamination assembly (1), wherein the elastic component (4) is located between the lamination assembly (1) and the bottom cover (3); the lamination assembly (1) includes a plurality of lamination monomers (11), and the inner edges of the lamination monomers (11) are provided with conical surfaces (15) so that the lamination monomers (11) are separated from each other in a backwashing state and compress the elastic component (4).

6. The filter element according to claim 5, characterized in that It also includes a pressure cover (5), which is sleeved on the frame (2) and located between the elastic component (4) and the laminate assembly (1).

7. The filter element according to claim 6, characterized in that The pressure cover (5) is provided with a first groove on a side close to the lamination assembly (1), and the size of the first groove is adapted to the size of the lamination assembly (1) so as to limit the lamination assembly (1); and / or, the pressure cover (5) is provided with a second groove on a side close to the elastic component (4), and the size of the second groove is adapted to the size of the elastic component (4) so ​​as to allow one end of the elastic component (4) to be placed therein.

8. The filter element according to claim 7, characterized in that A third groove is provided on one side of the bottom cover (3) close to the elastic component (4), and the size of the third groove is adapted to the size of the elastic component (4) so ​​as to allow the other end of the elastic component (4) to be placed therein.

9. The filter element according to any one of claims 5 to 8, characterized in that: The conical surface (15) comprises a first conical surface (15) and a second conical surface (15), wherein the first conical surface (15) and the second conical surface (15) are inclined in opposite directions, and the first conical surface (15) and the second conical surface (15) are separated from each other, and the width of the first conical surface (15) is greater than the width of the second conical surface (15).

10. A pre-filter, characterized in that: Comprising the filter element according to any one of claims 4 to 9.

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