Composite filter element capable of improving utilization rate of filter material

Abstract

The composite filter element comprises a filter bottle, a water inlet and a water outlet are formed in the upper portion of the filter bottle, a water guide piece and a filter element assembly are arranged in the filter bottle, the water guide piece can be located above the filter element assembly, a flow guide pipe capable of being located in the middle of the filter element assembly is arranged on the water guide piece, and the filter element assembly is arranged in the filter bottle. The flow guide pipe can be communicated with the water inlet; a filter layer is arranged at the bottom of the filter bottle, water in the water guide pipe can flow to the position below the filter layer, the portion, located above the filter layer and / or on the periphery of the filter element assembly, of the filter bottle is filled with bulk filter materials, and water entering from the water inlet can flow to the water outlet after being filtered through the filter layer, the filter materials and the filter element assembly in sequence. According to the composite filter element, parts used for water path partition in the filter bottle are reduced, under the condition of the same size, the placing space of bulk filter materials is increased, the purification efficiency is greatly improved, and the service life is greatly prolonged.

Description

Technical Field

[0001] The utility model relates to a composite filter element which can improve the utilization rate of filter materials. Background Art

[0002] As people's requirements for water quality increase, municipal water used in daily household use will be processed by purifiers to fully meet the standards for cooking and drinking in the kitchen. Such purification equipment can be called a water purifier. This equipment is directly installed on the water pipe entering the room, and can freely switch between tap water and purified water. The main component of the water purifier is the filter element, and in the current use of the filter element, in order to achieve a better purification effect, a composite filter element is used. The existing composite filter element waterway is filtered from top to bottom. In order to ensure the filtering order, each filtering area will have different filter materials, especially when bulk filter materials are used. In this way, it is necessary to design a part that separates the filter material from the filter material. After adding this part, the bulk filter material will not be washed by the water flow to the area of ​​other filter materials, but this will increase the parts in the filter bottle and reduce the space for placing the filter material in the filter bottle. Summary of the invention

[0003] In order to solve the above technical problems, the purpose of the utility model is to provide a composite filter element which improves the utilization rate of filter materials.

[0004] The utility model is realized by the following technical solutions:

[0005] A composite filter element for improving the utilization rate of filter materials, comprising a filter bottle with a water inlet and a water outlet on the top, a water guide member and a filter element assembly are arranged in the filter bottle, the water guide member can be located above the filter element assembly, a guide pipe that can be located in the middle of the filter element assembly is arranged on the water guide member, and the guide pipe can be connected with the water inlet; a filter layer is arranged at the bottom of the filter bottle, water in the guide pipe can flow to the bottom of the filter layer, the filter bottle located above the filter layer and / or the periphery of the filter element assembly is filled with bulk filter materials, and water entering the water inlet can be filtered by the filter layer, the filter material and the filter element assembly in sequence and then flow to the water outlet.

[0006] In an embodiment of the utility model, an upper cover is further provided in the filter bottle, and the upper cover is provided with a water inlet and a water outlet, the water inlet can be sealedly connected to the water inlet, the water outlet can be sealedly connected to the water outlet, an upper groove is provided at the upper end of the water guide member, the peripheral wall of the upper groove is sealedly connected to the outer peripheral wall of the upper cover, a transverse flow channel is provided on the water guide member, and the water inlet can be connected to the guide pipe through the flow channel.

[0007] In an embodiment of the utility model, the water guide member also includes a connecting pipe, which is located at the outer periphery of the guide pipe. A water outlet is formed between the connecting pipe and the guide pipe, and the water outlet end of the filter element assembly can be connected to the water outlet nozzle through the water outlet.

[0008] In the embodiment of the utility model, a first polyester cotton is arranged between the upper cover and the filter layer, and a second polyester cotton is arranged between the water outlet nozzle and the water outlet end of the filter element assembly.

[0009] In an embodiment of the utility model, a water diffuser is further provided at the bottom of the filter bottle, and the water diffuser is located below the filter layer; it also includes a center tube, and the center tube is located between the filter element assembly and the water diffuser. The water diffuser includes a water distribution plate located below the filter layer, and a first pipe fitting which can be plugged and matched with the center tube is provided in the middle of the water distribution plate. A water inlet cavity is formed in the filter bottle below the water distribution plate, and the water inlet can reach the water inlet cavity through the guide pipe and the center tube. A water outlet which can be connected with the water outlet cavity is arranged on the water distribution plate, and the outer peripheral side of the filter layer is abutted and matched with the inner peripheral wall of the filter element, so that the water in the water outlet cavity can only flow upward through the filter layer after passing through the water outlet.

[0010] In the embodiment of the utility model, a notch is provided on the outer peripheral wall below the first pipe member, and the water flow entering the first pipe member can flow to the outer periphery through the notch to the water inlet cavity.

[0011] In an embodiment of the utility model, the filter element assembly includes a carbon rod, a hollow portion is provided in the middle of the carbon rod, and the connecting pipe and the guide pipe are located in the hollow portion of the carbon rod; it also includes a lower cover, a second pipe fitting is provided in the middle of the lower cover, the upper end of the second pipe fitting is sealed with the water outlet end of the guide pipe, and the lower end of the second pipe fitting is sealed with the water inlet end of the center pipe.

[0012] In an embodiment of the utility model, the filter element assembly also includes an origami filter material and a charged membrane, the origami filter material is located at the periphery of the charged membrane, the charged membrane is located at the periphery of the carbon rod, the lower cover is buckled on the periphery of the lower end of the origami filter material, a lower groove is provided at the lower end of the water guide, and the upper end of the origami filter material is located in the lower groove.

[0013] In the embodiment of the utility model, the filter layer is a third polyester cotton.

[0014] The utility model discloses a composite filter element for improving the utilization rate of filter materials, which has the following beneficial effects: by directly passing the water inlet through the top and bottom of the filter bottle, the parts used for water channel partition in the filter bottle are reduced, and under the condition of the same volume, the placement space and filtering performance of bulk filter materials are increased, which greatly improves the purification efficiency and service life, and also reduces the development cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 creative work.

[0016] Figure 1 It is a schematic diagram of the utility model.

[0017] Figure 2 It is a matching schematic diagram of the filter element assembly in the utility model.

[0018] Figure 3 It is a schematic diagram of the water guide in the utility model Figure 1 .

[0019] Figure 4 It is a schematic diagram of the water guide in the utility model Figure 2 .

[0020] Figure 5 It is a schematic diagram of a water diffuser in the utility model.

[0021] The arrows in the figure indicate the direction of water flow. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0025] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0027] Referring to the drawings of the specification, a composite filter element for improving the utilization rate of filter materials comprises a filter bottle 10 with a water inlet 11 and a water outlet 12 on the top, a water guide 20 and a filter element assembly 30 are arranged in the filter bottle, a plurality of filter materials are integrated on the filter element assembly, the water guide can be located above the filter element assembly, the water guide and the filter element assembly can be combined into one assembly, a guide tube 21 which can be located in the middle of the filter element assembly is arranged on the water guide, and the guide tube can be connected with the water inlet; a filter layer is arranged at the bottom of the filter bottle, water in the guide tube can flow to the bottom of the filter layer, the filter bottle located above the filter layer and / or the periphery of the filter element assembly is filled with bulk filter materials (not marked in the figure), water entering the water inlet can be filtered through the filter layer, the filter material and the filter element assembly in turn, and can be discharged through the filter. The middle part of the filter element assembly and the outer periphery of the guide tube then flow to the water outlet. During use, water entering the filter bottle from the water inlet will directly flow from the middle part of the filter element to its bottom, that is, below the filter layer, and then flow to the water outlet after being filtered through the filter layer, filter material and filter element assembly in turn; and: in addition to the parts (filter element assembly, upper cover, water guide, etc.) shown in the figure, a cavity 13 is formed in the filter bottle above the filter layer. All the space in this cavity can be used to fill bulk filter material. Preferably, the cavity can be used to hold resin, and the outermost periphery of the filter element assembly is origami filter material, which will not flush the bulk filter material out of the filter bottle, and the bulk filter material can only be in the cavity and will not run to other areas. At the same time, no other parts are used in the filter bottle to separate separate areas.

[0028] Preferably, an upper cover 40 is further provided in the filter bottle, and the upper cover is provided with a water inlet nozzle 41 and a water outlet nozzle 42, the water inlet nozzle can be sealedly connected to the water inlet, and the water outlet nozzle can be sealedly connected to the water outlet, an upper groove 22 is provided at the upper end of the water guide member, and the peripheral wall of the upper groove is sealedly connected to the outer peripheral wall of the upper cover, and a transverse flow channel 23 is provided on the water guide member, and the water inlet nozzle can be connected to the guide pipe through the flow channel. Through the sealed connection, the single direction of the water flow can be guaranteed, and at the same time, it is also guaranteed that the bulk filter material will not run out of the cavity. The sealed connection shell includes the form of plug-in and sealing ring, which will not be elaborated here.

[0029] Furthermore, the water guide also includes a connecting pipe 24, which is located at the periphery of the flow guide pipe, and a water outlet 25 is formed between the connecting pipe and the flow guide pipe. The water outlet end of the filter element assembly can be connected to the water outlet nozzle through the water outlet, and the connecting pipe and the flow guide pipe form a tube-in-tube structure. The flow guide pipe of the inner tube is used for water inlet, and the connecting pipe of the outer tube is used for water outlet, so that the water purified by the filter element assembly is transported to the water outlet. A first polyester cotton 61 is arranged between the upper cover and the filter layer, and a second polyester cotton 62 is arranged between the water outlet nozzle and the water outlet end of the filter element assembly. In use, the first polyester cotton is arranged at the front end of the flow channel, that is, the connection between the water inlet nozzle and the upper groove, and the second polyester cotton is arranged at the connection between the water outlet and the water outlet nozzle.

[0030] Preferably, a water diffuser 50 is further provided at the bottom of the filter bottle, and the water diffuser is located below the filter layer; a central tube 14 is also provided, and the central tube is also located in the middle of the filter bottle and is connected to the flow guide tube, and the central tube is located between the filter element assembly and the water diffuser, and the central tube can also play a supporting role, and the filter element assembly is set in the filter bottle, and the water diffuser includes a water distribution plate 51 located below the filter layer, and a first pipe 52 that can be plugged and matched with the central tube is provided in the middle of the water distribution plate, so as to realize With the flow of current, a water inlet cavity 15 is formed in the filter bottle below the water dividing plate. The water inlet can reach the water inlet cavity through the guide pipe and the central pipe. A water inlet 53 which can communicate with the water inlet cavity is arranged on the water dividing plate. The outer peripheral side of the filter layer abuts against the inner peripheral wall of the filter element, so that the water in the water inlet cavity can only flow upward through the filter layer after passing through the water inlet. This ensures that the bottom of the cavity is in a "sealed" state, and there will be no other outlets at the upper end, so that the bulk filter material can only be in the cavity.

[0031] Furthermore, a notch 54 is provided on the outer peripheral wall below the first pipe fitting, and the water flow entering the first pipe fitting can flow to the water inlet chamber through the notch. The notches are distributed in a ring shape on the side wall of the first pipe fitting, so that the water flows from the first pipe fitting in the middle of the filter bottle to the surrounding areas to the water inlet chamber, and then passes through the filter layer from the water outlet.

[0032] In a preferred embodiment of the utility model, the filter element assembly includes a carbon rod 31, a hollow portion 32 is provided in the middle of the carbon rod, the connecting tube and the guide tube are located in the hollow portion of the carbon rod, and the inner peripheral wall of the carbon rod can be connected and matched with the outer peripheral wall of the connecting tube; it also includes a lower cover 33, a second pipe 34 is provided in the middle of the lower cover, the upper end of the second pipe is sealed with the water outlet end of the guide tube, and the lower end of the second pipe is sealed with the water inlet end of the center tube. The filter element assembly also includes an origami filter material 35 and a charged membrane 36, the origami filter material is located at the periphery of the charged membrane, the charged membrane is located at the periphery of the carbon rod, the lower cover is buckled on the periphery of the lower end of the origami filter material, the lower end of the water guide is provided with a lower groove 26, and the upper end of the origami filter material is located in the lower groove. The filter layer is a third polyester cotton 63.

[0033] The water channel direction of the utility model in use is: raw water (municipal water) → upper cover → first polyester cotton → flow guide pipe of water guide member → central pipe → water diffuser → third polyester cotton → cavity → origami filter material → charged membrane → carbon rod → water outlet → second polyester cotton) → filter element upper cover → water outlet; water enters through the flow guide pipe and central pipe in the middle of the filter bottle to pump water into the water inlet cavity at the bottom, and under the action of the water diffuser, the water is evenly distributed in the cavity from bottom to top, and the water softened by the bulk filter material (such as resin particles) is filtered by the filter element assembly and flows out from the center of the carbon rod to the water outlet.

[0034] Compared with the existing structure, the utility model has the following specific advantages: 1. Bulk filter materials (such as resins) do not need to be placed in a separate cavity. The existing filter element is used to form a chamber for placing the filter material (that is, the formed cavity), which greatly increases the volume for placing bulk filter materials and reduces the internal parts of the filter element; thus maximizing the space. 2. During use, the water flows from bottom to top during softening, so that the water can flow from bottom to top through all the resins and then enter the filter element assembly, maximizing the amount of softened water. This structure can achieve the goal of water flowing through the resin first and then entering the filter element assembly, greatly improving the utilization rate of the resin. 3. There is a water diffuser at the bottom. When the water flows from the bottom to the top, the water diffuser will disperse the water so that the resin cavity can flow more evenly.

[0035] Moreover, there is a gap 16 between the outer wall of the water guide and the filter bottle, so that the bulk filter material can be filled above the water guide. At the same time, in order to ensure the stability of the structure, a support sheet 27 is arranged in an annular shape on the outer wall of the water guide, and the support sheet can abut and cooperate with the inner wall of the filter bottle.

[0036] More specifically, the utility model avoids the traditional water channel method, and makes the water inlet and outlet water channels in the middle of the filter bottle while ensuring that the filtering order remains unchanged. In this way, the hollow part in the middle of the carbon rod itself can be used to realize the direction of the two-way water channel, thereby maximizing the space. At the same time, the water channel is the water guide and the central tube in the middle, and the water flows from bottom to top. In this way, the filter material with bulk materials does not need to be installed in a specific chamber, but can be directly bulked in the cavity of the filter bottle, so that the internal space of the filter bottle is maximized, and the water flow from bottom to top can also maximize the filtering performance of the bulk materials. Water passes through the water inlet through the upper cover, the first polyester cotton, and then through the water guide to enter the central tube downwards. The upper cover and the water guide are separated by a seal to separate the water path. The water guide and the lower cover of the filter element are separated by a seal to separate the water path. After that, the water passes through the water diffuser, and the second polyester cotton evenly enters the cavity that can be used to hold bulk filter materials upwards, and then passes through the filter element assembly to form the final filtered water. The filtered water passes through the middle of the filter element assembly and then goes upwards through the water outlet of the water guide to reach the water outlet. The utility model is a water path direction that can improve the utilization rate of filter materials in a composite filter element, has a compact structure, and improves the filtering effect of the filter material arrangement scheme; the water flow from the water inlet flows to the bottom of the filter bottle, and the water flow is dispersed by the function of the water diffuser so that the water can evenly cover the bulk filter material below to improve the filtering effect; and the filtering order is not changed, and different filter materials do not need to add partition materials to isolate the water flow. Place the filter layer with the highest priority at the bottom, and arrange the remaining filter materials upwards according to the water flow. This arrangement enables the assembly process to be filled with bulk filter materials last, thus achieving assemblability.

[0037] When assembling the utility model, the upper cover, the water guide, the filter element assembly and the central tube are first placed into the upper shell of the filter bottle from below, and then the upper shell is filled with bulk filter materials, and then the lower opening of the upper shell is sealed with a third polyester cotton, and then the water diffuser is connected with the central tube, and finally the lower shell of the filter bottle is connected with the upper shell (which can be welded).

[0038] The above description shows and describes the preferred embodiments of the utility model. As mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not depart from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A composite filter element for improving filter material utilization, comprising a filter bottle with a water inlet and a water outlet on the top, characterized in that: The filter bottle is provided with a water guide member and a filter element assembly, the water guide member can be located above the filter element assembly, the water guide member is provided with a flow guide tube that can be located in the middle of the filter element assembly, and the flow guide tube can be connected with the water inlet; a filter layer is provided at the bottom of the filter bottle, the water in the flow guide tube can flow to the bottom of the filter layer, the filter bottle located above the filter layer and / or the periphery of the filter element assembly is filled with bulk filter material, and the water entering the water inlet can be filtered by the filter layer, the filter material and the filter element assembly in sequence and then flow to the water outlet.

2. A composite filter element for improving filter material utilization according to claim 1, characterized in that: An upper cover is also provided in the filter bottle, and the upper cover is provided with a water inlet and a water outlet, the water inlet can be sealedly connected to the water inlet, and the water outlet can be sealedly connected to the water outlet, an upper groove is provided at the upper end of the water guide member, and the peripheral wall of the upper groove is sealedly connected to the outer peripheral wall of the upper cover, a transverse flow channel is provided on the water guide member, and the water inlet can be connected to the guide pipe through the flow channel.

3. A composite filter element for improving filter material utilization according to claim 2, characterized in that: The water guide member also includes a connecting pipe, which is located at the outer periphery of the flow guide pipe. A water outlet is formed between the connecting pipe and the flow guide pipe, and the water outlet end of the filter element assembly can be connected to the water outlet nozzle through the water outlet.

4. A composite filter element for improving filter material utilization according to claim 3, characterized in that: A first polyester cotton is arranged between the upper cover and the filter layer, and a second polyester cotton is arranged between the water outlet nozzle and the water outlet end of the filter element assembly.

5. A composite filter element for improving filter material utilization according to any one of claims 3-4, characterized in that: A water diffuser is also provided at the bottom of the filter bottle, and the water diffuser is located below the filter layer; the filter bottle also includes a central tube, and the central tube is located between the filter element assembly and the water diffuser. The water diffuser includes a water distribution plate located below the filter layer, and a first pipe fitting that can be plugged and matched with the central tube is provided in the middle of the water distribution plate. A water inlet cavity is formed in the filter bottle below the water distribution plate, and the water inlet can reach the water inlet cavity through the guide pipe and the central tube. A water outlet that can be connected to the water outlet cavity is arranged on the water distribution plate, and the outer peripheral side of the filter layer is abutted and matched with the inner peripheral wall of the filter element, so that the water in the water outlet cavity can only flow upward through the filter layer after passing through the water outlet.

6. A composite filter element for improving filter material utilization according to claim 5, characterized in that: A notch is arranged on the outer peripheral wall below the first pipe member, and water entering the first pipe member can flow toward the water inlet cavity through the notch toward the outer periphery.

7. A composite filter element for improving filter material utilization according to claim 6, characterized in that: The filter element assembly includes a carbon rod, a hollow portion is provided in the middle of the carbon rod, and the connecting pipe and the guide pipe are located in the hollow portion of the carbon rod; it also includes a lower cover, a second pipe fitting is provided in the middle of the lower cover, the upper end of the second pipe fitting is sealed with the water outlet end of the guide pipe, and the lower end of the second pipe fitting is sealed with the water inlet end of the center pipe.

8. A composite filter element for improving filter material utilization according to claim 7, characterized in that: The filter element assembly also includes an origami filter material and a charged membrane, wherein the origami filter material is located at the periphery of the charged membrane, the charged membrane is located at the periphery of the carbon rod, the lower cover is buckled on the periphery of the lower end of the origami filter material, a lower groove is provided at the lower end of the water guide, and the upper end of the origami filter material is located in the lower groove.

9. A composite filter element for improving filter material utilization according to claim 8, characterized in that: The filter layer is the third polyester cotton.

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