Water inlet structure of a domestic water tank

By installing a detachable filter assembly and a magnetic sealing structure at the water tank inlet, the problem of lack of filtration at the water tank inlet in remote mountainous areas is solved, achieving water filtration and convenient cleaning, and improving ease of use.

CN224321125UActive Publication Date: 2026-06-05ZHEJIANG ULAIKE WATER TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG ULAIKE WATER TECH CO LTD
Filing Date
2025-07-02
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

When existing domestic water tanks are used in remote mountainous areas, they lack inlet filtration structures, resulting in water with many impurities, complicated operation, and reduced convenience.

Method used

A detachable filter assembly, including a mounting bracket, filter canister, and top-out assembly, is installed at the water tank inlet. Combined with a magnetic sealing structure, it enables preliminary filtration of the water flow and convenient cleaning.

Benefits of technology

It achieves preliminary water filtration, improves ease of use, simplifies cleaning operations, avoids inlet blockage, and is suitable for remote mountainous areas and other scenarios.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224321125U_ABST
    Figure CN224321125U_ABST
Patent Text Reader

Abstract

The utility model discloses a kind of water inlet structure of domestic water tank, including water tank body and the water inlet formed in water tank body, filtering assembly is installed on the water inlet, and sealing structure for sealing water inlet is detachably installed on the water inlet.The utility model has the following advantages and effects: the utility model has filtering function, to meet the use of remote mountainous area etc. scene, improve the convenience of use.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to a domestic water tank, and more particularly to a structure for the inlet of a domestic water tank. Background Technology

[0002] Domestic water tanks are containers used to store and supply domestic water. They are widely used in residential buildings, commercial buildings, hospitals, schools, and remote mountainous areas. The design and use of domestic water tanks require consideration of various factors, including capacity, materials, hygiene, installation location, maintenance, and safety.

[0003] In practical applications in remote mountainous areas, domestic water tanks are equipped with inlet pipes connecting to mountain springs, and also have inlets for manually replenishing domestic water during the dry season. To prevent debris such as fallen leaves from falling into the inlet, a cover is installed. However, the spring water replenished during the dry season often contains a significant amount of debris and particulate impurities. To ensure the cleanliness of the water entering the domestic water tank, preliminary filtration is necessary. However, most existing domestic water tanks lack a filtration system at the inlet, and the preliminary filtration device is often homemade, greatly increasing operational complexity and impacting ease of use. This improvement was developed to address these issues. Utility Model Content

[0004] The purpose of this utility model is to provide a water inlet structure for a domestic water tank, which has a filtration function to meet the needs of use in remote mountainous areas and improve the convenience of use.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a water inlet structure for a domestic water tank, including a water tank body and a water inlet formed on the water tank body, wherein a filter assembly is installed on the water inlet, and a sealing structure for sealing the water inlet is detachably installed on the water inlet.

[0006] By adopting the above technical solution, the filter assembly is installed at the water inlet. When preliminary filtration of water poured into the domestic water tank is required, the sealing structure is removed. The water flow is preliminarily filtered by the filter assembly as it enters the inlet, thus ensuring the cleanliness of the water in the domestic water tank. This design enables convenient filtration of water poured into the inlet, meeting the needs of remote mountainous areas and improving ease of use.

[0007] The filter assembly is further configured such that: the filter assembly includes a mounting bracket installed at the water inlet and extending toward the interior of the water tank body, and a filter barrel installed within the mounting bracket and not protruding from the water inlet; and a push-out assembly for driving the filter barrel to protrude from the water inlet is provided between the filter barrel and the mounting bracket.

[0008] By adopting the above technical solution, the filter canister is installed at the water inlet using a mounting bracket. When the filter canister needs to be cleaned, the ejector component pushes the filter canister out of the water inlet, making it easy to remove. This makes the cleaning operation of the filter canister more convenient, avoids clogging of the water inlet, and also enables the filter canister to be recycled.

[0009] The further configuration includes: the ejector assembly includes a mounting groove formed between the filter barrel and the mounting bracket and an ejector spring installed in the mounting groove, the extension and retraction direction of the ejector spring being parallel to the projection direction of the water inlet, and a locking assembly provided between the mounting bracket and the filter barrel, the locking assembly preventing the filter barrel from protruding from the water inlet.

[0010] By adopting the above technical solution, the ejector spring applies an elastic force to the filter barrel, causing it to protrude from the inlet, thus facilitating easy removal of the filter barrel. Furthermore, a locking component limits the position of the filter barrel, ensuring that the ejector component does not interfere with the normal sealing operation of the sealing structure.

[0011] The mounting slot is further configured such that the mounting groove is disposed in the filter barrel, and the locking assembly includes a connecting column fixedly disposed in the mounting bracket and extending into the mounting slot, a lock hole disposed in the filter barrel and corresponding to the end face of the connecting column, and a locking block rotatably disposed in the connecting column and located on the other side of the lock hole relative to the connecting column. The locking block rotates to have a first position that passes through the lock hole and a second position that does not pass through the lock hole.

[0012] By adopting the above technical solution, when the locking block is in the second position, the filter barrel is not protruding from the water inlet. When the filter barrel needs to be cleaned, the locking block is switched from the second position to the first position, so that the locking hole on the filter barrel can pass through the locking block under the action of the push-out spring and move to the position protruding from the water inlet.

[0013] The sealing structure is further configured as follows: a sealing cap is provided on the water inlet, a first magnetic block is fixedly provided on the sealing cap, and a second magnetic block is fixedly provided on the water inlet and magnetically attracted to the first magnetic block.

[0014] By adopting the above technical solution, the first magnetic block and the second magnetic block work together to achieve the detachable fixing of the sealing cover on the water inlet, which is convenient to operate and lower in cost.

[0015] The configuration is further defined as follows: the first magnetic block is fixedly disposed at the inner bottom of the sealing cover.

[0016] By adopting the above technical solution, this structure can better fix the sealing cover on the water inlet, thus forming a better limit.

[0017] A further configuration is made whereby the mounting bracket is threadedly connected to the water inlet.

[0018] By adopting the above technical solution, the mounting bracket can be easily assembled on the water inlet.

[0019] In summary, this utility model has the following beneficial effects: This utility model has a filtering function, which can meet the needs of use in remote mountainous areas and other scenarios, and improve the convenience of use. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of an embodiment;

[0021] Figure 2 for Figure 1 Enlarged view of section A in the middle;

[0022] Figure 3 for Figure 1 Enlarged view of section B in the middle;

[0023] Figure 4 This is a partial structural diagram of an embodiment;

[0024] Figure 5 This is a partial exploded view of an embodiment.

[0025] In the diagram: 1. Water tank body; 2. Water inlet; 41. Mounting bracket; 42. Filter barrel; 51. Mounting groove; 52. Push-out spring; 61. Connecting column; 62. Lock hole; 63. Locking block; 71. Sealing cover; 72. First magnetic block; 73. Second magnetic block. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to the accompanying drawings.

[0027] refer to Figures 1 to 5 A domestic water tank inlet structure includes a water tank body 1 and an inlet 2 formed on the water tank body 1. A filter assembly is installed on the inlet 2, and a sealing structure for sealing the inlet 2 is detachably installed on the inlet 2.

[0028] The filter assembly includes a mounting bracket 41 installed at the inlet 2 and extending toward the interior of the water tank body 1, and a filter barrel 42 installed in the mounting bracket 41 and not protruding from the inlet 2. An ejection assembly for driving the filter barrel 42 to protrude from the inlet 2 is provided between the filter barrel 42 and the mounting bracket 41.

[0029] The ejector assembly includes a mounting groove 51 formed between the filter canister 42 and the mounting bracket 41, and an ejector spring 52 installed in the mounting groove 51. The extension and retraction direction of the ejector spring 52 is parallel to the projection direction of the inlet 2. A locking assembly is provided between the mounting bracket 41 and the filter canister 42, which prevents the filter canister 42 from protruding from the inlet 2.

[0030] The mounting slot 51 is formed in the filter barrel 42. The locking assembly includes a connecting post 61 integrally mounted on the mounting bracket 41 and extending into the mounting slot 51, a locking hole 62 formed in the filter barrel 42 corresponding to the end face of the connecting post 61, and a locking block 63 rotatably mounted on the connecting post 61 and located on the other side of the locking hole 62 opposite to the connecting post 61. The locking block 63 has a first position where it passes through the locking hole 62 and a second position where it does not pass through the locking hole 62. The ejector spring 52 is fitted onto the connecting post 61 and is electroplated with an anti-rust layer or sprayed with anti-rust paint.

[0031] The sealing structure includes a sealing cover 71 covering the water inlet 2, a first magnetic block 72 fixedly disposed on the sealing cover 71, and a second magnetic block 73 fixedly disposed on the end face of the water inlet 2 and magnetically attracted to the first magnetic block 72. The first magnetic block 72 is fixedly disposed on the inner bottom of the sealing cover 71 and the mounting bracket 41 is threadedly connected to the inner peripheral wall of the water inlet 2.

[0032] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A domestic water tank inlet structure, comprising a water tank body (1) and an inlet (2) formed on the water tank body (1), characterized in that: A filter assembly is installed on the water inlet (2), and a sealing structure for sealing the water inlet (2) is detachably installed on the water inlet (2).

2. The domestic water tank inlet structure according to claim 1, characterized in that: The filter assembly includes a mounting bracket (41) installed at the inlet (2) and extending toward the interior of the water tank body (1), and a filter barrel (42) installed in the mounting bracket (41) and not protruding from the inlet (2). A push-out component is provided between the filter barrel (42) and the mounting bracket (41) to drive the filter barrel (42) to protrude from the inlet (2).

3. The domestic water tank inlet structure according to claim 2, characterized in that: The ejection assembly includes a mounting groove (51) formed between the filter barrel (42) and the mounting bracket (41) and an ejection spring (52) installed in the mounting groove (51). The extension and retraction direction of the ejection spring (52) is parallel to the projection direction of the water inlet (2). A locking assembly is provided between the mounting bracket (41) and the filter barrel (42), and the locking assembly limits the filter barrel (42) from protruding from the water inlet (2).

4. The domestic water tank inlet structure according to claim 3, characterized in that: The mounting groove (51) is provided on the filter barrel (42). The locking assembly includes a connecting post (61) fixedly provided on the mounting bracket (41) and extending into the mounting groove (51), a lock hole (62) provided on the filter barrel (42) and corresponding to the end face of the connecting post (61), and a locking block (63) rotatably provided on the connecting post (61) and located on the other side of the lock hole (62) relative to the connecting post (61). The locking block (63) rotates to have a first position that passes through the lock hole (62) and a second position that does not pass through the lock hole (62).

5. The domestic water tank inlet structure according to claim 4, characterized in that: The sealing structure includes a sealing cover (71) covering the water inlet (2), a first magnetic block (72) fixedly disposed on the sealing cover (71), and a second magnetic block (73) fixedly disposed on the water inlet (2) and magnetically attracted to the first magnetic block (72).

6. The domestic water tank inlet structure according to claim 5, characterized in that: The first magnetic block (72) is fixedly disposed on the inner bottom of the sealing cover (71).

7. The domestic water tank inlet structure according to claim 2, characterized in that: The mounting bracket (41) is threadedly connected to the water inlet (2).