CN111905418A - Filter equipment and washing equipment intake - Google Patents
Filter equipment and washing equipment intake Download PDFInfo
- Publication number
- CN111905418A CN111905418A CN201910390685.8A CN201910390685A CN111905418A CN 111905418 A CN111905418 A CN 111905418A CN 201910390685 A CN201910390685 A CN 201910390685A CN 111905418 A CN111905418 A CN 111905418A
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- Prior art keywords
- water
- filter element
- water inlet
- shell
- diversion
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- 238000005406 washing Methods 0.000 title claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 224
- 238000001914 filtration Methods 0.000 claims abstract description 69
- 238000009826 distribution Methods 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims description 26
- 239000011324 bead Substances 0.000 claims 2
- 238000011045 prefiltration Methods 0.000 claims 1
- 239000012466 permeate Substances 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 7
- 239000002245 particle Substances 0.000 description 5
- 239000004576 sand Substances 0.000 description 5
- 230000002349 favourable effect Effects 0.000 description 4
- 239000012535 impurity Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000004851 dishwashing Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D27/00—Cartridge filters of the throw-away type
- B01D27/08—Construction of the casing
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D27/00—Cartridge filters of the throw-away type
- B01D27/10—Safety devices, e.g. by-passes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/02—Combinations of filters of different kinds
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention discloses a water inlet filtering device and washing equipment, wherein the water inlet filtering device comprises: a housing having a water inlet and a water outlet; the filter element is positioned in the shell and used for filtering water flow flowing through the shell, and the filter element is in a cylindrical shape with an opening; a first inner wall of the shell, which is provided with a water inlet, is provided with a convex water distribution structure, and the water distribution structure is provided with a plurality of water distribution ribs extending along the radial direction of the water inlet; after water flow enters the shell through the water inlet, the water flow can radially and outwards diffuse and flow along the direction of the water dividing ribs, and meanwhile, a part of water flow downwards passes through the bottom surface of the filter element; the water flow which flows radially outwards flows downwards after reaching the side wall of the shell, and is filtered through the side wall surface of the filter element; and part of water flow close to the filter element on the flow path permeates into the filter element to realize filtration, so that the water flow is dispersed to pass through the filter element, the filtration efficiency is improved, and the service life of the filter element is prolonged.
Description
Technical Field
The invention belongs to the technical field of inlet water filtration, and particularly provides an inlet water filtration device and washing equipment.
Background
In australia, new zealand, china and other countries, some users' domestic water comes from groundwater obtained from drilling wells at home or rainwater collected by a rainwater collector and subjected to some purification, which may contain fine sand particles. After the dishwasher is connected with the household water, the fine sand particles can enter the water path circulating system of the dishwasher, and the fine sand particles can cause certain damage to the outer surface of the tableware in the washing process, accelerate the abrasion of the outer surface of the tableware and cause certain damage to the water path system of the dishwasher.
Therefore, the filter screen structure is arranged in the water inlet electromagnetic valve device of the dish-washing machine, sand particles with a certain diameter can be filtered, and fine sand particles smaller than the aperture of the filter screen can enter a water channel of the dish-washing machine; therefore, a water inlet filtering device is needed to be arranged, but the water flow of the existing water inlet filtering device generally passes through part of the position of the filtering device in a concentrated manner, so that the filtering efficiency is not high, and after certain impurities exist on the unit area of the filter element, the filter element also needs to be cleaned or replaced even if most of the positions on the filter element have no impurities or a small amount of impurities; resulting in increased costs for replacing the filter cartridge and increased workload on the user.
The above information disclosed in this background section is only for enhancement of understanding of the background of the application and therefore it may comprise prior art that does not constitute known to a person of ordinary skill in the art.
Disclosure of Invention
The invention provides a water inlet filtering device aiming at the problems in the prior art, which realizes the flow distribution in a shell and improves the filtering efficiency.
In order to realize the purpose of the invention, the invention is realized by adopting the following technical scheme:
an influent water filtration device comprising:
a housing having a water inlet and a water outlet;
the filter element is positioned in the shell and used for filtering water flow flowing through the shell, and the filter element is in a cylindrical shape with an opening;
the water inlet is arranged in the shell, a first inner wall of the shell, provided with a water inlet, is provided with a convex water distribution structure, and the water distribution structure is provided with a plurality of water distribution ribs extending along the radial direction of the water inlet.
Furthermore, a plurality of water diversion ribs are circumferentially and uniformly distributed.
Furthermore, the one end that divides the water muscle to be close to the water inlet has water conservancy diversion portion, water conservancy diversion portion is being close to the width diminishes gradually on the water inlet direction.
Furthermore, the water conservancy diversion portion with the water inlet interval sets up, forms the reposition of redundant personnel passageway between two adjacent water bars, and is a plurality of the water conservancy diversion portion is around forming the reposition of redundant personnel chamber that communicates water inlet and a plurality of reposition of redundant personnel passageway.
Furthermore, the water diversion rib is bent at one end far away from the water inlet and extends towards the direction of the water outlet along the side wall of the shell to form a water diversion extension rib.
Furthermore, the filter element is in a cylindrical shape with a small bottom opening, and the opening is positioned at one end close to the water outlet.
Further, the filter element is a ceramic filter element.
Furthermore, an outward flange is arranged on the edge of the opening, and an annular first sealing gasket is arranged between the flange and the shell.
Furthermore, a fine filter screen which is positioned behind the filter element in the water flow direction is also arranged in the shell, and the fine filter screen is positioned between the filter element and the water outlet.
Furthermore, a coarse filter screen which is positioned in front of the filter element in the water flow direction is also arranged in the shell, and the coarse filter screen is positioned between the filter element and the water dividing rib.
Further, the distance between the coarse filter screen and the side wall of the shell is smaller than or equal to the diameter of the filter hole of the coarse filter screen.
Furthermore, an avoiding notch used for avoiding the water diversion extension rib is formed in the coarse filter screen.
Furthermore, still have the fixed bolster of setting between filter core and coarse filter screen in the casing, the fixed bolster has annular support body, radially extends a plurality of support teeth outward along the support body.
Further, the casing includes an upper casing and a lower casing, the first sealing gasket has a sealing body located between the filter element and the casing, and a sealing edge extending outwards along the lower portion of the outer ring of the sealing body to form a ring shape, and the sealing edge is located between the upper casing and the lower casing.
Furthermore, the thickness of the sealing body is 1.5-2 times of that of the sealing edge.
Based on the inlet water filtering device, the invention also provides a washing device with the inlet water filtering device, and the filtering efficiency is improved.
A washing device is provided with a water inlet pipe, and the water inlet filtering device is arranged on the water inlet pipe.
Compared with the prior art, the invention has the advantages and positive effects that: the water distribution structure is provided with the plurality of water distribution ribs extending along the radial direction of the water inlet, so that after water flows into the shell through the water inlet, the water can radially and outwardly diffuse and flow along the direction of the water distribution ribs, and meanwhile, a part of the water flows downwards pass through the bottom surface of the filter element; the water flow which flows radially outwards flows downwards after reaching the side wall of the shell, and is filtered through the side wall surface of the filter element; the water diversion ribs are arranged to guide the entering water flow, so that a flow path which flows radially and flows downwards is formed; and part of water flow close to the filter element on the flow path permeates into the filter element to realize filtration, so that the water flow is dispersed to pass through the filter element, the filtration efficiency is improved, and the service life of the filter element is prolonged.
Other features and advantages of the present invention will become more apparent from the following detailed description of the invention when taken in conjunction with the accompanying drawings.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural view of a first embodiment of an influent water filtering apparatus according to the present invention;
FIG. 2 is a schematic cross-sectional view of FIG. 1;
FIG. 3 is a schematic view of the water flow of FIG. 2;
FIG. 4 is a schematic view of the influent water filtration unit of FIG. 2;
FIG. 5 is an enlarged schematic view of the upper housing of FIG. 4;
FIG. 6 is an enlarged schematic view of the water inlet of FIG. 5;
FIG. 7 is a schematic structural view of a second mode of the water inlet structure in FIG. 5;
FIG. 8 is an enlarged schematic view of the cartridge of FIG. 4;
FIG. 9 is a cross-sectional schematic view of FIG. 8;
FIG. 10 is an enlarged schematic view of the first gasket of FIG. 4;
FIG. 11 is a schematic structural view of a second embodiment of an influent water filtering apparatus according to the present invention;
FIG. 12 is a schematic structural view of a third embodiment of an influent water filtering apparatus according to the present invention;
FIG. 13 is an enlarged view of the coarse filter screen and the fixing bracket of FIG. 12;
FIG. 14 is a schematic structural view of the fixing bracket of FIG. 13;
fig. 15 is a schematic structural view of a fourth embodiment of the inlet water filter device according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on the positional relationships shown in the drawings, and the directions near the axis of the inner tube are "inner" and vice versa. The terminology is for the purpose of describing the invention only and is for the purpose of simplifying the description, and is not intended to indicate or imply that the device or element so referred to must be in a particular orientation, constructed and operated, and is not to be considered limiting of the invention. Moreover, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1 to 10, a first embodiment of an inlet water filter device 100 according to the present invention is disclosed, which can be used in a washing apparatus such as a dishwasher, a washing machine, a dish washer, etc. An influent water filtration device 100 comprising: the filter comprises a shell 10 and a filter element 20 positioned in the shell 10, wherein the shell 10 is provided with a water inlet 13 and a water outlet 14, and the water inlet 13 and the water outlet 14 are coaxially arranged oppositely. The housing 10 has an upper housing 11 and a lower housing 12 which are detachably sealed, the upper housing 11 is provided with a water inlet 13, and the lower housing 12 is provided with a water outlet 14. The cartridge 20 is a cylindrical body having an opening 23 with a bottom surface 21 and a side wall surface 22. The water inlet filtering device 100 is fixed on the water inlet pipe 200 through threaded connection, wherein the inner diameter of the water inlet pipe 200 is equal to that of the water inlet 13, the inner diameter of the water outlet 14 is larger than that of the water inlet 13, the ratio of the inner diameter of the water outlet 14 to that of the water inlet 13 is 2-4, and the ratio of the inner diameter of the water outlet 14 to that of the water inlet 13 is preferably set to be 3.
Referring to fig. 5, the water inlet 13 is formed in the first inner wall 111 of the upper housing 11, a convex water diversion structure is arranged on the first inner wall 111 near the water inlet 13, the water diversion structure has a plurality of water diversion ribs 113 extending along the radial direction of the water inlet 13, and the plurality of water diversion ribs 113 are uniformly distributed in the circumferential direction; by arranging the water diversion rib 113, after water flow enters the shell 10 through the water inlet 13, the water flow can be diffused and flow outwards along the direction of the water diversion rib 113, and meanwhile, a part of water flow downwards passes through the bottom surface 21 of the filter element 20; the radially outwardly flowing water flows downwardly after reaching the sidewall 112 of the housing 10 and is filtered by the sidewall surface 22 of the filter element 20; the water diversion ribs 113 are arranged to guide the entering water flow to form a flow path which flows radially and flows downwards; and a part of the water flow close to the filter element 20 on the flow path of the water flow permeates through the filter element 20 to realize filtration, so that the water flow is dispersed through the filter element 20, which is beneficial to improving the filtration efficiency and increasing the service time of the filter element 20.
Referring to fig. 6, in order to avoid the blocking of the water flow by the end of the water diversion rib 113 close to the water inlet 13, the end of the water diversion rib 113 close to the water inlet 13 is provided with a flow guide portion 1131, and the width of the flow guide portion 1131 is gradually reduced in the direction close to the water inlet 13; the end of the flow guide portion 1131 near the water inlet 13 is preferably arranged to be arc-shaped or linear, which facilitates the reduction of the size of the end of the flow guide portion 1131 in the circumferential direction and avoids blocking of the water flow, and facilitates the water flow to be guided into the space between the two flow guide portions 1131. The flow guiding parts 1131 are arranged at intervals with the water inlet 13, that is, the flow guiding parts 1131 have a certain distance from the water inlet 13, a diversion channel 15 is formed between two adjacent diversion ribs 113, and the diversion cavities 16 which are communicated with the water inlet 13 and the diversion channels 15 are formed by surrounding the plurality of flow guiding parts 1131; the size of the diversion chamber 16 is larger than that of the water inlet 13, water flow reaches the diversion chamber 16 from top to bottom through the water inlet 13, a part of the water flow flows radially and enters the plurality of diversion channels 15, and a small amount of water flow directly flows downwards to pass through the bottom surface 21 of the filter element 20. By arranging the diversion cavity 16, diversion of water flow which is low after entering is facilitated, and the change of the flow direction of the water flow is facilitated.
As for the arrangement form of the water diversion structure in the housing 10, referring to fig. 5, the first form is that the water diversion structure is only arranged on the first inner wall 111, the first inner wall 111 is circular, and the water diversion rib 113 extends outwards along the radial direction of the water inlet 13 and reaches the edge of the first inner wall 111; the water flow flows along the water diversion rib 113 and then flows backwards, which is beneficial for the water flow to uniformly pass through the bottom surface 21 of the filter element 20. Referring to fig. 7, in the second form, the water diversion structure is continuously disposed on the first inner wall 111 and the side wall 112 of the housing 10, specifically, the water diversion rib 113 is bent at an end away from the water inlet and extends along the side wall 112 of the housing 10 toward the water outlet 14 to form a water diversion extension rib 114, and the water diversion extension rib 114 is disposed along the axial direction; the bottom surface 21 of the filter element 20 is beneficial to uniform water flow passing through, so that the water flow which continues to flow horizontally flows along the water diversion rib 113, and flows downwards along the water diversion extension rib 114 after reaching the edge of the first inner wall 111, and the arrangement of the water diversion extension rib 114 is beneficial to the vertical flow direction, so that the continuous water diversion in the vertical direction can be realized, and the uniform distribution of the water flow is beneficial to passing through the side wall surface 22 of the filter element 20.
Referring to fig. 4 and 8, the filter element 20 is in the shape of a cylinder with a small bottom opening 23 at an end adjacent to the water outlet 14, and water entering the housing 10 is filtered through the bottom surface 21 and the side wall surface 22 of the filter element 20 and then flows out of the filter element 20 through the opening 23. The filter element 20 is in the shape of a cylinder with a small bottom, i.e. the side wall surface 22 is inclined, which is beneficial to increase the area of the side wall surface 22 and is beneficial to passing through the side wall of the filter element 20 when the water flows downwards. The filter element 20 is preferably provided as a ceramic filter element, which is advantageous for improving the filtering accuracy.
An outward flange 24 is arranged at the edge of the opening 23, and an annular first sealing gasket 60 is arranged between the flange 24 and the shell 10, so that unfiltered water flow is prevented from reaching the water outlet 14. The upper shell 11 and the lower shell 12 are connected through threads, and the upper shell 11 and the lower shell 12 are not sealed; arranging a first sealing gasket 60 with a sealing body 61 positioned between the filter element 20 and the shell 10, and a sealing edge 62 extending outwards along the lower part of the outer ring of the sealing body 61 to form a ring shape, wherein the sealing edge 62 is positioned between the upper shell 11 and the lower shell 12; referring to fig. 10, the sealing body 61 and the sealing rim 62 are in a two-step shape, the thickness of the sealing body 61 is greater than that of the sealing rim 62, and the thickness of the sealing body 61 is preferably 1.5-2 greater than that of the sealing rim 62. Through setting up integrative first sealed pad 60, be favorable to reducing the quantity that fills up, be favorable to into water filter equipment 100's assembly efficiency to and reduce material cost, also be favorable to increasing the leakproofness.
In this embodiment, the filter element 20 is assembled in the housing 10, and the filter element 20 is compressed between the water dividing rib 113 and the first seal gasket 60.
Referring to fig. 11, a second embodiment of the inlet water filtering device of the present invention is provided, which is different from the first embodiment mainly in that: a fine filter screen is also arranged in the shell, and other structures can adopt the same structure as the first embodiment.
A fine filter screen 30 located behind the filter element 20 in the water flow direction is further disposed in the casing 10, the fine filter screen 30 is located between the filter element 20 and the water outlet 14, specifically, the fine filter screen 30 is located between the filter element 20 and the first sealing gasket 60, the filtering precision or filtering mesh number of the fine filter screen 30 is higher than that of the filter element 20, and the fine filter screen 30 is a disk-shaped filter screen. By providing the fine filter screen 30, the filtering accuracy is further increased, and the filtering efficiency is improved by the two-stage classification filtering. The fine filter screen 30 is sealed with the casing 10 by the first sealing gasket 60, the filter element 20 is pressed on the fine filter screen 30, no sealing exists between the filter element 20 and the fine filter screen 30, even if a small amount of water permeates through a gap between the filter element 20 and the fine filter screen 30, the permeated water is not filtered by the filter element 20, but is filtered by the fine filter screen, and the amount is extremely small, so that no sealing gasket is arranged between the filter element 20 and the fine filter screen 30.
Referring to fig. 12-14, a third embodiment of the inlet water filtering device of the present invention is provided, which mainly differs from the first embodiment in that: a coarse filter screen is also arranged in the shell, and other structures can adopt the same structure as the first embodiment.
A coarse filter screen 40 is further disposed in the casing 10 and located in front of the filter element 20 in the water flow direction, the coarse filter screen 40 is located between the filter element 20 and the water diversion rib 113, the filtering accuracy or filtering mesh number of the coarse filter screen 40 is much smaller than that of the filter element 20, and the coarse filter screen 40 is a disk-shaped filter screen. By providing the coarse filter screen 40, the water flow entering the housing 10 is preliminarily filtered, and the secondary classification filtering is favorable for improving the filtering efficiency. And the coarse filter screen 40 is attached to the lower side of the water diversion rib 113, so that the water flow entering the diversion cavity 16 and the diversion channel 15 flows down through the filter holes 41 on the coarse filter screen 40.
In order to ensure the filtering precision and facilitate the installation of the coarse filtering screen 40, the distance between the coarse filtering screen 40 and the side wall 112 of the casing 10 is set to be smaller than or equal to the diameter of the filtering hole 41 of the coarse filtering screen 40, so that a gap which is not larger than the diameter of the filtering hole 41 is formed between the coarse filtering screen 40 and the side wall 112 of the casing 10, and a certain gap is formed by the arrangement, or the coarse filtering screen 40 and the side wall 112 are arranged at intervals, so that the assembly of the coarse filtering screen 40 is facilitated, and the coarse filtering screen 40 is convenient to be placed in the casing 10; and the clearance between the coarse filter screen 40 and the side wall 112 of the casing 10 is not larger than the diameter of the filter hole 41, that is, a filter clearance is formed between the coarse filter screen 40 and the side wall 112 of the casing 10, and when water flows down from the filter clearance, the filter precision is larger than or equal to that of the coarse filter screen 40.
In order to further increase the stability of the fixing of the coarse filter screen 40, a fixing bracket 50 is further provided in the housing 10 between the filter cartridge 20 and the coarse filter screen 40, and the fixing bracket 50 is used for supporting the coarse filter screen 40 and for receiving a pressing force from the filter cartridge 20 after the inlet water filter device 100 is assembled. The fixed bracket 50 has an annular bracket body 51, and a plurality of bracket teeth 52 extending radially outward along the bracket body 51. The provision of the bracket teeth 52 facilitates increased structural strength and facilitates assembly. The radial dimension of the fixing bracket 50 is equal to or smaller than the radial dimension of the coarse filter mesh 40.
When the water diversion structure is in the second form, since the side wall 112 is provided with the plurality of convex water diversion extension ribs 114, the coarse filter screen 40 needs to be provided with an avoidance notch for avoiding the water diversion extension ribs 114; setting the distance between the coarse filter screen 40 and the water diversion extension rib 114 to be less than or equal to the diameter of the filter hole 41 of the coarse filter screen 40; the circumferential distribution of the plurality of support teeth 52 of the fixing support 50 and the plurality of convex water diversion extending ribs 114 need not to interfere, and the number of the support teeth 52 on the fixing support 50 is preferably the same as or in a multiple relation with the number of the water diversion extending ribs 114, so as to ensure that the support teeth 52 and the water diversion extending ribs 114 do not interfere.
Referring to fig. 15, a fourth embodiment of the inlet water filtering device of the present invention is provided, and the main difference between this embodiment and the first embodiment is: three-stage filtering is arranged, the filtering precision is increased, and other structures can adopt the same structure as the first embodiment.
A coarse filter screen 40 is further disposed in the casing 10 and located in front of the filter element 20 in the water flow direction, the coarse filter screen 40 is located between the filter element 20 and the water diversion rib 113, the filtering accuracy or filtering mesh number of the coarse filter screen 40 is much smaller than that of the filter element 20, and the coarse filter screen 40 is a disk-shaped filter screen. By providing a coarse filter screen 40, the flow of water entering the housing 10 is initially filtered.
A fine filter screen 30 located behind the filter element 20 in the water flow direction is further disposed in the casing 10, the fine filter screen 30 is located between the filter element 20 and the water outlet 14, specifically, the fine filter screen 30 is located between the filter element 20 and the first sealing gasket 60, the filtering precision or filtering mesh number of the fine filter screen 30 is higher than that of the filter element 20, and the fine filter screen 30 is a disk-shaped filter screen. And the filter precision is improved by setting three-stage classified filtration.
In order to further increase the stability of the fixing of the coarse filter screen 40, a fixing bracket 50 is further provided in the housing 10 between the filter cartridge 20 and the coarse filter screen 40, and the fixing bracket 50 is used for supporting the coarse filter screen 40 and for receiving a pressing force from the filter cartridge 20 after the inlet water filter device 100 is assembled. The fixed bracket 50 has an annular bracket body 51, and a plurality of bracket teeth 52 extending radially outward along the bracket body 51. The provision of the bracket teeth 52 facilitates increased structural strength and facilitates assembly. The radial dimension of the fixing bracket 50 is equal to or smaller than the radial dimension of the coarse filter mesh 40.
For the assembly of the influent water filtration device 10, the following steps are included:
and S10, sequentially placing the components in the shell 10 into the upper shell 11.
Specifically, the coarse filter screen 40, the fixing bracket 50, the filter element 20, the fine filter screen 30, and the first gasket 60 are sequentially placed in the upper case 11.
And S20, screwing and fixing the upper shell 11 and the lower shell 12 to complete the assembly of the water inlet filtering device 10.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions.
Claims (10)
1. An influent water filtration device comprising:
a housing having a water inlet and a water outlet;
the filter element is positioned in the shell and used for filtering water flow flowing through the shell, and the filter element is in a cylindrical shape with an opening;
the water inlet is arranged in the shell, a first inner wall of the shell, provided with a water inlet, is provided with a convex water distribution structure, and the water distribution structure is provided with a plurality of water distribution ribs extending along the radial direction of the water inlet.
2. The influent water filtering device as defined in claim 1 wherein said diverter rib has a flow guide at an end adjacent said inlet opening, said flow guide tapering in width in a direction adjacent said inlet opening.
3. The intake water filter device of claim 2, wherein the diversion part is spaced from the water inlet, a diversion channel is formed between two adjacent diversion ribs, and a plurality of diversion parts surround a diversion cavity which is formed to communicate the water inlet and the plurality of diversion channels.
4. The water inlet filtering device as claimed in claim 1, wherein the diversion rib is bent at an end away from the water inlet and extends along a side wall of the housing in a direction toward the water outlet to form a diversion extension rib.
5. The influent water filtering device as defined in any one of claims 1 to 4 wherein said filter element is in the form of a cylinder having a small bottom opening, said opening being located at an end adjacent said outlet; the edge of the opening is provided with an outward flange, and an annular first sealing gasket is arranged between the flange and the shell.
6. The intake filter assembly of claim 5, further comprising a fine filter screen positioned behind the filter element in the direction of water flow within the housing, the fine filter screen positioned between the filter element and the outlet.
7. The influent water filtering device as defined in claim 6 wherein said housing includes an upper housing and a lower housing, said first gasket having a seal body positioned between said filter cartridge and said housing, a seal bead extending outwardly along a lower portion of an outer race of said seal body to form an annular seal, said seal bead being positioned between said upper and lower housings.
8. The intake water filter device according to any one of claims 1 to 4, wherein a coarse filter screen is further provided in the housing in front of the filter element in the water flow direction, the coarse filter screen is located between the filter element and the water dividing ribs, and the distance between the coarse filter screen and the side wall of the housing is smaller than or equal to the diameter of the filter holes of the coarse filter screen.
9. The influent water filtering device as defined in claim 8 further including a mounting bracket disposed within said housing between the filter cartridge and the prefilter screen, said mounting bracket having an annular bracket body, a plurality of bracket teeth extending radially outwardly of the bracket body.
10. A washing apparatus having a water inlet pipe on which is provided a feed water filtration device as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910390685.8A CN111905418A (en) | 2019-05-10 | 2019-05-10 | Filter equipment and washing equipment intake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910390685.8A CN111905418A (en) | 2019-05-10 | 2019-05-10 | Filter equipment and washing equipment intake |
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| Publication Number | Publication Date |
|---|---|
| CN111905418A true CN111905418A (en) | 2020-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910390685.8A Pending CN111905418A (en) | 2019-05-10 | 2019-05-10 | Filter equipment and washing equipment intake |
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| CN (1) | CN111905418A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113528179A (en) * | 2021-06-30 | 2021-10-22 | 山东佳星环保科技有限公司 | Novel pretreatment device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4689145A (en) * | 1986-08-01 | 1987-08-25 | Mathews Lester R | Dry well filtration system |
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