Multi-filter installation structure of a water purifier

Abstract

The utility model discloses a kind of water purifier multi-filter element mounting structures, it is related to water purifier equipment technical field, including filter element guide cylinder, the upper and lower ends of filter element guide cylinder symmetrically fixed with first connection square box and second connection square box;Filter element guide cylinder is cylinder, for accommodating filter element;Four side surfaces of first connection square box and second connection square box are each equipped with connecting hole, first connection square box and second connection square box are detachably connected with water purifier shell;Waterway box, it is set on first connection square box, for connecting the water inlet and outlet of filter element, waterway box and filter element between being equipped with check assembly;Wherein, filter element guide cylinder, waterway box, filter element and check assembly form a filter element unit, filter element unit is worn in the connecting hole of adjacent filter element unit by connecting piece, modularization splicing is realized, to form scalable filter element module.The above-mentioned water purifier multi-filter element mounting structure solves the technical problem that existing multi-filter element installation cannot realize modularization and scalable splicing.

Description

Technical Field

[0001] This utility model relates to the field of water purifier equipment technology, and in particular to a multi-filter installation structure for a water purifier. Background Technology

[0002] As people's requirements for drinking water safety and quality continue to increase, household and commercial water purifiers have been widely used in daily life.

[0003] In existing technologies, the filter cartridges of multi-cartridge water purifiers are typically installed inside the main housing of the purifier. There are two main installation methods: one is to directly fix the filter cartridges into pre-set mounting holes in the purifier housing; the other is to position and connect them using a dedicated filter cartridge frame or bracket. For example, Chinese utility model patent CN204778889U discloses a water purifier with a filter cartridge snap-fit ​​connection structure, which uses grooves of different sizes on the filter cartridge frame to adapt to different specifications of filter cartridge housings, achieving rapid installation. However, the above-mentioned traditional structure has obvious technical defects: First, because different models of water purifiers require different numbers, types, and arrangements of filter cartridges, each product often requires a dedicated housing structure and mold design, resulting in high mold costs and long development cycles. Second, the fixed filter cartridge layout cannot flexibly expand or adjust the filter cartridge combination according to actual usage scenarios, limiting the product's applicability and upgrade potential.

[0004] In addition, some modular water purifiers attempt to connect adjacent filter units by means of bolts (such as Chinese utility model patent CN212309153U), but this only achieves simple mechanical splicing and does not solve the problem of arbitrary expansion and assembly of filter units in the front-back and left-right directions.

[0005] Therefore, how to provide a multi-filter installation structure for a water purifier that enables modular and scalable splicing of filter units and supports flexible combinations of different numbers and types of filter elements is a technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0006] The purpose of this invention is to provide a multi-filter installation structure for a water purifier, which solves the technical problem that existing multi-filter installations cannot achieve modularity and expandable splicing.

[0007] To achieve the above objectives, this utility model provides a multi-filter installation structure for a water purifier, comprising:

[0008] The filter element guide tube has a first connecting box and a second connecting box symmetrically fixed at its upper and lower ends. The opening of the first connecting box is vertically upward. The filter element guide tube is cylindrical and is used to accommodate the filter element. The four sides of the first connecting box and the second connecting box are provided with connecting holes. The first connecting box and the second connecting box are used to be detachably connected to the water purifier shell.

[0009] A water channel box is disposed on the first connecting box and is used to connect the inlet and outlet water channels of the filter element. A backflow prevention component is provided between the water channel box and the filter element.

[0010] The filter element guide tube, the water circuit box, the filter element, and the backflow prevention assembly form a filter element unit. The filter element unit is inserted into the connection hole of the adjacent filter element unit through a connector to achieve modular splicing and form an expandable filter element module.

[0011] Preferably, the connector is a connecting buckle, which includes a base, and the end face of the base is provided with a plurality of elastic flaps distributed circumferentially; the elastic flaps are capable of elastic deformation and engaging into the connecting holes of two adjacent filter element guide tubes.

[0012] Preferably, the front end of the elastic flap is provided with a guide slope.

[0013] Preferably, the cavity of the first connecting box is provided with a plurality of first screw posts, and the water box is fixedly connected to the first connecting box by screws cooperating with the first screw posts.

[0014] Preferably, the first connecting box has a plurality of second screw posts in its recess, and the first screw posts are positioned closer to the filter cartridge than the second screw posts. The water purifier housing is fixedly connected to the first connecting box by screws engaging with the second screw posts.

[0015] Preferably, the second connecting box is provided with a countersunk hole, and a fastener is used to connect it to the water purifier housing by engaging with the countersunk hole.

[0016] Preferably, the filter element is any one of PP cotton filter element, activated carbon filter element, RO membrane filter element, ultrafiltration membrane filter element or composite filter element.

[0017] Preferably, the water box is provided with multiple inlet and outlet water interfaces for corresponding connection to the inlet and outlet water channels of the filter element.

[0018] Preferably, the water box is provided with a plug for sealing the unused inlet and outlet water interfaces.

[0019] Preferably, the first connecting box and the second connecting box have the same size and structure, and the cross-sectional area of ​​the first connecting box is larger than the cross-sectional area of ​​the filter element guide tube.

[0020] Compared with the above-mentioned background technology, the multi-filter installation structure for water purifiers provided by this utility model has the following advantages:

[0021] 1. By setting connection holes on the four sides of the first and second connecting boxes, and by cooperating with the connectors and connection holes, the filter element units can be arbitrarily spliced ​​in the front-back and left-right directions, which makes it convenient for users to flexibly combine different types and quantities of filter elements to form a complete filter element module according to actual needs.

[0022] 2. Simple structure, convenient installation and low cost. It adopts a standardized filter element unit design and uses universal connectors to achieve quick assembly and disassembly, shortening the installation time. The filter element guide tube and the connecting box adopt an integrated molding structure, reducing manufacturing costs. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0024] Figure 1 This is an isometric view of the multi-filter installation structure of the water purifier provided in an embodiment of the present utility model;

[0025] Figure 2 This is a schematic diagram of the filter element guide tube structure provided in an embodiment of the present utility model;

[0026] Figure 3 for Figure 2 Another perspective illustration;

[0027] Figure 4 This is a schematic diagram of the water channel box structure provided in an embodiment of the present utility model;

[0028] Figure 5 This is a schematic diagram of the connector structure provided in an embodiment of the present utility model.

[0029] in:

[0030] 1-Filter cartridge guide tube, 2-First connecting box, 21-First screw post, 22-Second screw post, 3-Second connecting box, 31-Counterhead, 4-Connecting hole, 5-Water circuit box, 51-Inlet and outlet water interface, 6-Check component, 7-Connector, 71-Base, 72-Elastic retaining flap, 73-Guide slope. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] See Figure 1 This application provides a multi-filter cartridge installation structure for a water purifier, including a filter cartridge guide cylinder 1. A first connecting box 2 and a second connecting box 3 are symmetrically fixed at the upper and lower ends of the filter cartridge guide cylinder 1. The opening of the first connecting box 2 faces vertically upwards. The filter cartridge guide cylinder 1 is cylindrical and used to accommodate the filter cartridge. Connection holes 4 are provided on all four sides of the first connecting box 2 and the second connecting box 3, which are used for detachable connection to the water purifier housing. A water passage box 5 is disposed on the first connecting box 2 and used to connect the inlet and outlet water passages of the filter cartridge. A backflow preventer 6 is provided between the water passage box 5 and the filter cartridge. The filter cartridge guide cylinder 1, water passage box 5, filter cartridge, and backflow preventer 6 form a filter cartridge unit. The filter cartridge unit is inserted into the connection holes 4 of adjacent filter cartridge units via connectors 7, achieving modular splicing to form an expandable filter cartridge module.

[0034] In other words, the filter element guide tube 1 is cylindrical in shape, providing installation space for the filter element and ensuring that the filter element will not shake or shift during operation. The material of the filter element guide tube 1 in this application can be polypropylene (PP) or acrylonitrile-butadiene-styrene copolymer (ABS) to adapt to the complex working environment of water purifiers and extend service life.

[0035] A first connecting box 2 and a second connecting box 3 are symmetrically fixed at the upper and lower ends of the filter element guide tube 1. The opening of the first connecting box 2 is vertically upward, and the opening of the second connecting box 3 is vertically downward. The four sides of the first connecting box 2 and the second connecting box 3 are provided with connecting holes 4, so that adjacent filter element units can be modularly assembled in any of the four directions: front, back, left, and right. The number of connecting holes 4 on each side can be two. The first connecting box 2 and the second connecting box 3 are detachably connected to the water purifier shell.

[0036] The water passage box 5 is installed on the first connecting box 2 and is used to connect the inlet and outlet water passages of the filter element. A backflow preventer 6 is provided between the water passage box 5 and the filter element. The function of the backflow preventer 6 is to prevent water from flowing back when the filter element is pulled out.

[0037] The connector 7 is used to realize the modular splicing between filter element units. By inserting the connector 7 into the connection hole 4 of adjacent filter element units, multiple filter element units can be tightly connected together to form an expandable filter element module.

[0038] The working principle is as follows:

[0039] When using the multi-filter installation structure of this water purifier, first install each filter element into its corresponding filter element guide tube 1, ensuring that the filter element and water circuit box 5 are correctly connected via the check valve assembly 6. Then, according to the actual water purification needs, multiple filter element units are inserted through the connecting holes 4 of adjacent filter element units via connectors 7, modularly splicing them to form a complete filter element module.

[0040] The beneficial effects are:

[0041] 1. By setting connection holes on the four sides of the first and second connecting boxes, and by cooperating with the connector 7 and the connection hole 4, the filter element unit can be arbitrarily spliced ​​in the front-back and left-right directions, which makes it convenient for users to flexibly combine different types and quantities of filter elements to form a complete filter element module according to actual needs.

[0042] 2. Simple structure, convenient installation and reduced cost: It adopts a standardized filter element unit design and uses universal connectors to achieve quick assembly and disassembly, shortening the installation time. In addition, the filter element guide tube and the connecting box adopt an integrated molding structure, which reduces manufacturing costs.

[0043] Furthermore, the water box 5, the backflow prevention component 6, and the filter element are direct applications of existing mature technologies, therefore this application will not elaborate on their specific structures and connection methods here.

[0044] Based on the above embodiments, see Figure 5 The connector 7 is a connecting buckle, which includes a base 71. The end face of the base 71 is provided with a plurality of elastic flaps 72 distributed circumferentially. The elastic flaps 72 can undergo elastic deformation and be inserted into the connecting holes 4 of two adjacent filter element guide tubes 1.

[0045] Specifically, the base 71 is a circular seat. On the end face of the base 71, multiple elastic latches 72 are evenly distributed circumferentially. The front end of the elastic latches 72 is provided with a guide slope 73, which is used to guide the elastic latches 72 to retract when inserted into the connecting hole 4. The guide slope 73 is conical or wedge-shaped, which makes it easier for the elastic latches 72 to snap into the connecting hole 4 of two adjacent filter element guide cylinders 1. When it is necessary to connect two filter element guide cylinders 1 together, simply align the base 71 of the connecting buckle with the connecting part of the filter element guide cylinder 1, and then apply a certain pressure. The elastic latches 72 will gradually undergo elastic deformation under the pressure, and the conical or wedge-shaped part at its front end will smoothly insert into the connecting hole 4. As the pressure continues to be applied, the elastic latches 72 will be completely snapped into the connecting hole 4 and tightly adhered to the inner wall of the connecting hole 4 under the action of its own elasticity, thereby realizing a quick and stable connection between two adjacent filter element guide cylinders 1.

[0046] When it is necessary to disassemble the filter element guide tube 1, the operation is equally simple and quick. Simply pinch the multiple elastic flaps 72 with your hand and apply an inward squeezing force, causing the elastic flaps 72 to elastically deform again and contract inward. At this time, the friction between the elastic flaps 72 and the inner wall of the connecting hole 4 decreases. When the squeezing force reaches a certain level, the elastic flaps 72 will disengage from the connecting hole 4, thereby easily separating adjacent filter element guide tubes 1.

[0047] Specifically, there are four elastic flaps 72, which ensure the stability and reliability of the connection between adjacent filter element guide tubes 1.

[0048] Based on the above embodiments, see Figure 1 , Figure 2 The first connecting box 2 has a plurality of first screw posts 21 in its recess, preferably four in number. The water box 5 is fixedly connected to the first connecting box 2 by screws cooperating with the first screw posts 21. The first connecting box 2 has a plurality of second screw posts 22 in its recess, preferably four in number. The first screw posts 21 are positioned closer to the filter cartridge 1 than the second screw posts 22. The water purifier shell is fixedly connected to the first connecting box 2 by screws cooperating with the second screw posts 22.

[0049] Specifically, four first screw posts 21 are evenly and symmetrically distributed within the recess of the first connecting box 2. During installation, the water pipe box 5 is placed in the corresponding position within the recess of the first connecting box 2. At this time, the four first screw posts 21 correspond one-to-one with the four pre-set mounting holes on the water pipe box 5. The operator uses screws to sequentially pass through the mounting holes of the water pipe box 5 and the threaded holes on the first screw posts 21, and tightens the screws to make the screws tightly engage with the threads of the first screw posts 21, thereby forming a firm connection between the water pipe box 5 and the first connecting box 2.

[0050] Furthermore, four second screw posts 22 are provided in the recess of the first connecting box 2. Unlike the first screw post 21, the first screw post 21 is positioned closer to the filter cartridge 1 than the second screw post 22. The water purifier shell is fixedly connected to the first connecting box 2 by screws and the four second screw posts 22.

[0051] Based on the above embodiments, see Figure 1 , Figure 3 The second connecting box 3 is provided with a countersunk hole 31. The second connecting box 3 is connected to the water purifier shell by fasteners cooperating with the countersunk hole 31. The fasteners can be screws or bolts. The inner wall of the countersunk hole 31 is provided with internal threads.

[0052] Based on the above embodiments, the filter element is any one of PP cotton filter element, activated carbon filter element, RO membrane filter element, ultrafiltration membrane filter element or composite filter element. That is to say, in order to flexibly adapt and meet diverse needs, the filter elements contained in the filter element guide tube 1 in the filter element module have different sizes and different types.

[0053] Based on the above embodiments, see Figure 4 The water box 5 is equipped with multiple inlet and outlet water interfaces 51 for connecting to the inlet and outlet water paths of various filter cartridges. The water box 5 also has plugs for sealing unused inlet and outlet water interfaces 51. In other words, the multiple inlet and outlet water interfaces 51 on the water box 5 are designed to precisely correspond to the inlet and outlet water paths of various filter cartridges. Different types of filter cartridges, such as PP cotton filters, activated carbon filters, RO membrane filters, ultrafiltration membrane filters, and composite filters, have different requirements for the number and location of their inlet and outlet water interfaces due to their unique filtration principles and purification effects. The multiple inlet and outlet water interfaces 51 on the water box 5 can meet the connection needs of various filter cartridges, ensuring smooth water flow between the filter cartridges and the water box, achieving a highly efficient filtration and purification process.

[0054] Considering that the number of inlet and outlet ports on the filter cartridge may vary depending on the type of filter cartridge, the water box 5 is equipped with plugs for sealing unused inlet and outlet ports 51. When the installed filter cartridge does not need to use the inlet and outlet ports on the water box 5, simply install the corresponding plugs on these ports to effectively prevent water leakage and ensure the sealing and stability of the water system.

[0055] In traditional water purification system designs, the water circuit board is a common component. However, the design of the water circuit board often requires customized production based on different filter cartridge numbers and layouts, leading to increased production costs and extended production cycles. This application uses a water circuit box 5 instead of a water circuit board. Using the water circuit box 5 avoids the need to design and produce different water circuit boards for different filter cartridge numbers; only a standard water circuit box needs to be produced. Different installation methods for the plugs can accommodate different filter cartridge numbers, simplifying the production process and reducing production costs.

[0056] Based on the above embodiments, the first connecting box 2 and the second connecting box 3 have the same size and structure, and the cross-sectional area of ​​the first connecting box 2 is larger than the cross-sectional area of ​​the filter element guide tube 1, which facilitates the fixed installation of the filter element guide tube 1.

[0057] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0058] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A multi-filter cartridge installation structure for a water purifier, characterized in that, include: The filter element guide tube (1) has a first connecting box (2) and a second connecting box (3) symmetrically fixed at its upper and lower ends. The opening of the first connecting box (2) is vertically upward. The filter element guide tube (1) is a cylinder used to accommodate the filter element. The four sides of the first connecting box (2) and the second connecting box (3) are provided with connecting holes (4). The first connecting box (2) and the second connecting box (3) are used to detachably connect to the outer shell of the water purifier. A water channel box (5) is disposed on the first connecting box (2) for connecting the inlet and outlet water channels of the filter element. A backflow prevention component (6) is provided between the water channel box (5) and the filter element. The filter element guide tube (1), the water box (5), the filter element and the backstop assembly (6) form a filter element unit. The filter element unit is inserted into the connection hole (4) of the adjacent filter element unit through the connector (7) to realize modular splicing and form an expandable filter element module.

2. The multi-filter-cartridge mounting structure of the water purifier according to claim 1, wherein The connector (7) is a connecting buckle, which includes a base (71). The end face of the base (71) is provided with a plurality of elastic flaps (72) distributed circumferentially. The elastic flaps (72) can undergo elastic deformation and be inserted into the connecting holes (4) of two adjacent filter element guide tubes (1).

3. The multi-filter-cartridge mounting structure of the water purifier according to claim 2, wherein The front end of the elastic flap (72) is provided with a guide slope (73).

4. The multi-filter-cartridge mounting structure of the water purifier according to claim 1, wherein The first connecting box (2) has a plurality of first screw posts (21) in its cavity. The water box (5) is fixedly connected to the first connecting box (2) by screws cooperating with the first screw posts (21).

5. The multi-filter-cartridge mounting structure of the water purifier according to claim 4, wherein The first connecting box (2) has a plurality of second screw posts (22) in its recess. The first screw post (21) is positioned closer to the filter cartridge (1) than the second screw post (22). The water purifier housing is fixedly connected to the first connecting box (2) by screws cooperating with the second screw post (22).

6. The multi-filter-cartridge mounting structure of the water purifier according to claim 5, wherein The second connecting box (3) is provided with a countersunk hole (31), and the second connecting box (3) is connected to the water purifier shell by fasteners cooperating with the countersunk hole (31).

7. The multi-filter-cartridge mounting structure of the water purifier according to claim 1, wherein The filter element is any one of PP cotton filter element, activated carbon filter element, RO membrane filter element, ultrafiltration membrane filter element or composite filter element.

8. The multi-filter-cartridge mounting structure of the water purifier according to claim 1, wherein The water box (5) is provided with multiple inlet and outlet water interfaces (51) for corresponding connection to the inlet and outlet water channels of the filter element.

9. The multi-filter-cartridge mounting structure of the water purifier according to claim 8, wherein The water box (5) is provided with a plug for sealing the unused inlet and outlet water interfaces (51).

10. The multi-filter-cartridge mounting structure of the water purifier according to claim 1, wherein The first connecting box (2) and the second connecting box (3) have the same size and structure. The cross-sectional area of ​​the first connecting box (2) is larger than that of the filter element guide tube (1).

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