Double-layer filter screen assembly based on water dispenser

Abstract

The utility model discloses a double-layer type filter screen assembly based on a water dispenser, and aims to solve the problems that an existing filter screen is fixed in structure, an activated carbon filter screen which is short in service life cannot be independently replaced, and the use cost is increased, the following scheme is provided: the double-layer type filter screen assembly comprises a water dispenser case shell and a filter shell arranged in the water dispenser case shell, the filter screen assembly comprises a filter shell, the filter shell is in threaded connection with a water dispenser case shell, a filter element installation bin is arranged in the filter shell, the upper portion of the filter element installation bin is in threaded connection with a first-stage filter bin, and a second-stage filter element is installed between the first-stage filter bin and the filter element installation bin. The secondary filter element which can be replaced according to needs is arranged between the filter element mounting bin and the primary filter bin, daily requirements of users can be met, the secondary filter element can be a ceramic filter element, an activated carbon filter element and the like according to water quality requirements, higher flexibility is achieved, and the use cost of the filter screen assembly is reduced.

Description

Technical Field

[0001] The utility model relates to a filter screen component of a water dispenser, in particular to a double-layer filter screen component based on the water dispenser, belonging to the technical field of filter screens of water dispensers. Background Art

[0002] A water dispenser is a device that heats or cools pure water or mineral water for people to drink. The water dispenser heats the water to the set temperature through the heating body and then discharges the water. The double-layer filter of the water dispenser is a device with two-layer filtering function, which is designed to more effectively remove impurities and harmful substances in the water and provide cleaner and healthier drinking water.

[0003] The working principle of the double-layer filter is to effectively filter impurities and particles in the fluid through the different pore sizes and filter material characteristics of the inner and outer layers of the mesh. The first layer of the filter mainly intercepts large particles of impurities in the water, such as silt, rust, etc., while the second layer of the filter further removes harmful substances in the water, such as lead, arsenic, chlorine, etc. This design not only improves the filtering effect, but also reduces the risk of clogging. In order to avoid a large amount of impurities on the top of the double-layer filter after long-term use, the double-layer filter needs to be cleaned regularly. How to conveniently disassemble and replace the double-layer filter has become an urgent problem that needs to be solved in the filter assembly.

[0004] In the prior art, there is a detachable water dispenser filter structure disclosed in announcement number CN217323711U, in which a mounting screw is added to the filter net and the installation of the filter net is achieved through the mounting screw. The filter net structure is arranged in two layers, the upper layer is a 5,000-mesh filter net and the lower layer is an activated carbon filter net, so as to achieve a filtering effect on pure water.

[0005] However, in actual use, the filter structure is fixed, and the life of the activated carbon filter is short. The activated carbon filter needs to be replaced regularly, which requires replacing the entire filter structure, increasing the cost of use. Utility Model Content

[0006] The utility model provides a double-layer filter assembly based on a water dispenser to solve the problem that the filter structure is fixed and the activated carbon filter with a short life cannot be replaced separately, which increases the use cost.

[0007] The utility model achieves the above-mentioned purpose through the following technical solutions: a double-layer filter screen assembly based on a water dispenser, comprising a water dispenser chassis shell, a positioning ring located on the top of the water dispenser chassis shell for placing bottled water, and a filter screen assembly installed inside the positioning ring for filtering the bottled water;

[0008] The filter assembly includes a filter housing arranged inside the water dispenser chassis housing, and the filter housing is threadedly connected to the water dispenser chassis housing, a filter element installation compartment is arranged inside the filter housing, and a primary filter compartment is threadedly connected above the filter element installation compartment, a secondary filter element is installed between the primary filter compartment and the filter element installation compartment, and a sealing ring is provided on the surface of the filter housing.

[0009] As a further solution of the utility model: filter holes are arranged at the bottom of the primary filter bin and the filter element installation bin, and the filter holes at the bottom of the primary filter bin have a larger aperture than the filter holes at the bottom of the filter element installation bin.

[0010] As a further solution of the utility model: a water inlet cylinder is threadedly connected to the upper part of the first-level filter bin, and water inlet holes with a long strip structure are opened around the water inlet cylinder.

[0011] As a further solution of the utility model: an external thread is provided at the connection between the filter housing and the water dispenser chassis housing, and the sealing ring is located above the external thread on the surface of the filter housing.

[0012] As a further solution of the utility model: an embedding groove is provided at the connection between the sealing ring and the filter housing, and the inner diameter of the sealing ring is smaller than the outer diameter of the filter housing, and the sealing ring is embedded in the outer surface of the filter housing through the embedding groove.

[0013] As a further solution of the utility model: a bottled water docking port for placing a water inlet cylinder is provided inside the positioning ring, and the top of the water inlet cylinder passes through the bottled water docking port, and the bottled water docking port and the filter housing are adapted to each other in size.

[0014] As a further solution of the utility model: fixing screws are arranged on both sides of the bottled water docking port, and the fixing screws penetrate the interior of the positioning ring, and a waterproof cover is arranged on the top of the fixing screws.

[0015] The beneficial effects of the utility model are:

[0016] 1. Through the filter assembly, a secondary filter element that can be replaced as needed is set between the filter element installation compartment and the primary filter compartment, which can meet the daily needs of users, and when the filter assembly needs to be cleaned, only the internal secondary filter element can be replaced according to the usage situation, and the secondary filter element can be selected from ceramic filter elements, activated carbon filter elements, etc. according to water quality requirements, which has higher flexibility. The filter housing, filter element installation compartment and primary filter compartment can be cleaned to ensure normal use requirements, which also greatly reduces the use cost of the filter assembly;

[0017] 2. The filter housing can be directly installed on the top of the water dispenser chassis housing, and is positioned and installed on the top of the filter housing through a positioning ring. The positioning ring can be disassembled and can be easily cleaned. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the filter assembly of the utility model;

[0020] Figure 3 This is a schematic diagram of the exploded structure of the filter assembly of the utility model;

[0021] Figure 4 It is a schematic diagram of the half-section structure of the filter housing of the utility model.

[0022] In the figure: 1. Water dispenser chassis; 2. Positioning ring; 3. Bottled water docking port; 4. Filter assembly; 401. Filter housing; 402. Sealing ring; 403. Filter element installation compartment; 404. Primary filter compartment; 405. Secondary filter element; 406. Embedded groove; 5. Water inlet cylinder; 6. Fixing screws; 7. Water inlet hole. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only 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 creative work are within the scope of protection of the utility model.

[0024] Embodiment 1, as Figures 1 to 4 As shown, a double-layer filter assembly based on a water dispenser includes a water dispenser housing 1, a positioning ring 2 located on the top of the water dispenser housing 1 for placing bottled water, and a filter assembly 4 installed inside the positioning ring 2 for filtering the bottled water;

[0025] The filter assembly 4 includes a filter housing 401 arranged inside the water dispenser chassis housing 1, and the filter housing 401 is threadedly connected to the water dispenser chassis housing 1, a filter element installation compartment 403 is arranged inside the filter housing 401, and a primary filter compartment 404 is threadedly connected above the filter element installation compartment 403, a secondary filter element 405 is installed between the primary filter compartment 404 and the filter element installation compartment 403, a sealing ring 402 is provided on the surface of the filter housing 401, and a filter element 405 can be replaced as needed by setting a filter element installation compartment 403 and the primary filter compartment 404. The secondary filter element 405 improves the fixed structure of the filter screen, and the problem of the short-lived activated carbon filter screen that cannot be replaced separately, which increases the cost of use, can meet the daily needs of users. Only the internal secondary filter element 405 can be replaced according to the usage situation, and the secondary filter element 405 can be selected from ceramic filter elements, activated carbon filter elements, etc. according to water quality requirements, which has higher flexibility. The filter housing 401, the filter element installation compartment 403 and the primary filter compartment 404 can be cleaned to ensure normal use requirements, which greatly reduces the cost of using the filter screen assembly 4.

[0026] Embodiment 2. In addition to all the technical features of Embodiment 1, this embodiment also includes: filter holes are provided at the bottom of the primary filter chamber 404 and the filter element installation chamber 403, and the filter holes at the bottom of the primary filter chamber 404 have a larger aperture than the filter holes at the bottom of the filter element installation chamber 403. Simple filtering requirements can also be met through the filter holes with different apertures on the primary filter chamber 404 and the filter element installation chamber 403, and the primary filter chamber 404 and the filter element installation chamber 403 can be cleaned and reused repeatedly.

[0027] A water inlet cylinder 5 is threadedly connected to the top of the primary filter chamber 404 , and a long strip of water inlet holes 7 are provided around the water inlet cylinder 5 . Bottled water can enter the water inlet cylinder 5 through the water inlet holes 7 and undergo primary filtration through the primary filter chamber 404 .

[0028] An external thread is provided at the connection between the filter housing 401 and the water dispenser chassis housing 1, and the sealing ring 402 is located above the external thread on the surface of the filter housing 401. When the filter housing 401 is installed, the sealing ring 402 will be pressed downward to make the sealing ring 402 seal the filter housing 401 and the water dispenser chassis housing 1.

[0029] An embedding groove 406 is provided at the connection between the sealing ring 402 and the filter housing 401 , and the inner diameter of the sealing ring 402 is smaller than the outer diameter of the filter housing 401 . The sealing ring 402 is embedded in the outer surface of the filter housing 401 through the embedding groove 406 , making it easy to replace the sealing ring 402 .

[0030] Embodiment three, in addition to all the technical features of embodiment one, this embodiment also includes: a bottled water docking port 3 for placing a water inlet cylinder 5 is opened inside the positioning ring 2, and the top of the water inlet cylinder 5 passes through the bottled water docking port 3, the bottled water docking port 3 and the filter housing 401 are adapted to each other in size, and the bottled water docking port 3 is used to dock bottled water.

[0031] Fixing screws 6 are provided on both sides of the bottled water docking port 3 , and the fixing screws 6 pass through the interior of the positioning ring 2 . A waterproof cover is provided on the top of the fixing screws 6 , and the fixing screws 6 can fix the positioning ring 2 .

[0032] When in use, first screw the filter housing 401 onto the water inlet position of the water dispenser chassis housing 1. When the filter housing 401 is screwed, the sealing ring 402 will be pressed downward, so that the sealing ring 402 is completely close to the water dispenser chassis housing 1, and the connection between the filter housing 401 and the water dispenser chassis housing 1 is sealed, and a positioning ring 2 is installed on the top of the filter housing 401. Use a tool to insert the fixing screw 6 into the positioning ring 2 to fix the positioning ring 2. The water in the bottled water can enter the water inlet cylinder 5 through the water inlet hole 7, pass through the primary filter chamber 404 for primary filtration, and then pass through the secondary filter element 405 for secondary filtration. The filtered water can enter the water inlet through the filter element installation chamber 403. The secondary filter element 405 can be selected from ceramic filter elements, activated carbon filter elements, etc. according to water quality requirements.

[0033] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A double-layer filter assembly based on a water dispenser, characterized in that: The water dispenser comprises a housing (1) of the water dispenser, a positioning ring (2) located on the top of the housing (1) of the water dispenser for placing bottled water, and a filter assembly (4) installed inside the positioning ring (2) for filtering the bottled water; The filter screen assembly (4) comprises a filter housing (401) arranged inside a water dispenser housing (1), and the filter housing (401) is threadedly connected to the water dispenser housing (1), a filter element installation chamber (403) is arranged inside the filter housing (401), and a primary filter chamber (404) is threadedly connected above the filter element installation chamber (403), a secondary filter element (405) is installed between the primary filter chamber (404) and the filter element installation chamber (403), and a sealing ring (402) is sleeved on the surface of the filter housing (401).

2. A double-layer filter screen assembly based on a water dispenser according to claim 1, characterized in that: The bottoms of the primary filter chamber (404) and the filter element installation chamber (403) are both provided with filter holes, and the filter holes at the bottom of the primary filter chamber (404) have a larger aperture than the filter holes at the bottom of the filter element installation chamber (403).

3. A double-layer filter screen assembly based on a water dispenser according to claim 1, characterized in that: A water inlet cylinder (5) is threadedly connected to the upper portion of the primary filter chamber (404), and water inlet holes (7) of a long strip structure are provided around the water inlet cylinder (5).

4. A double-layer filter screen assembly based on a water dispenser according to claim 1, characterized in that: An external thread is provided at the connection between the filter housing (401) and the water dispenser chassis housing (1), and the sealing ring (402) is located above the external thread on the surface of the filter housing (401).

5. A double-layer filter screen assembly based on a water dispenser according to claim 4, characterized in that: An embedding groove (406) is provided at the connection between the sealing ring (402) and the filter housing (401), and the inner diameter of the sealing ring (402) is smaller than the outer diameter of the filter housing (401). The sealing ring (402) is embedded in the outer surface of the filter housing (401) through the embedding groove (406).

6. A double-layer filter screen assembly based on a water dispenser according to claim 1, characterized in that: The interior of the positioning ring (2) is provided with a bottled water docking port (3) for placing a water inlet cylinder (5), and the top of the water inlet cylinder (5) passes through the bottled water docking port (3), and the bottled water docking port (3) and the filter housing (401) are compatible in size.

7. A double-layer filter screen assembly based on a water dispenser according to claim 6, characterized in that: The left and right sides of the bottled water docking port (3) are both provided with fixing screws (6), and the fixing screws (6) penetrate the interior of the positioning ring (2), and the top of the fixing screws (6) is provided with a waterproof cover.

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