Liquid inlet filtering structure of washing liquid box

By installing a separately installable circular connector and an arched filter structure at the inlet of the washing liquid box, the problem of particulate impurities clogging the one-way valve during the filling process of the washing liquid box is solved, achieving efficient filtration without increasing production costs.

CN224180421UActive Publication Date: 2026-05-01GUANGZHOU SAIGE SMART HOUSEHOLD PROD CO
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGZHOU SAIGE SMART HOUSEHOLD PROD CO
Filing Date
2025-05-28
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing detergent dispensers are prone to getting particulate impurities in when adding detergent, which can clog the one-way valve of the negative pressure suction device and affect the sealing effect. In addition, the existing detergent dispenser manufacturing process is mature, and designing a separate structure with a filter screen would increase costs.

Method used

Design a separately installable liquid inlet filter structure, including a circular connector, a U-shaped frame and an arched filter screen. The arched filter screen covers the U-shaped cavity and is used to filter particulate matter in the washing liquid. The structure is simple and does not affect the production cost of the washing liquid box.

Benefits of technology

It achieves effective filtration of particulate matter without changing the manufacturing process of the detergent dispenser, preventing it from entering the negative pressure suction device and ensuring the normal use of the detergent dispenser.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of washing liquid boxes, and particularly relates to a liquid inlet filtering structure of a washing liquid box, and a liquid inlet is formed in a liquid storage cavity of the washing liquid box; the liquid inlet filtering structure is mounted on the liquid inlet; the liquid inlet filtering structure comprises a circular connecting plug, a U-shaped frame and an arched filter screen; a U-shaped opening of the U-shaped frame faces upwards and is connected to the upper end of the circular connecting plug, and the circular connecting plug is communicated with a U-shaped cavity of the U-shaped frame; the circular inserting head is matched with the liquid inlet in an inserting manner; the arched filter screen is mounted on the U-shaped frame and covers the U-shaped cavity, and the edge of the arched filter screen is connected with the edge of the U-shaped frame. According to the scheme, the liquid inlet filtering structure is simple in structure, can be mounted on washing liquid boxes with different capacities, and can be independently dismounted and mounted; moreover, the liquid inlet filtering structure adopts the arched filter screen, so that the filtering efficiency of the washing liquid can be improved, and particles in the washing liquid can be filtered, and are prevented from entering the negative pressure liquid suction device to influence the normal use of the washing liquid box.
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Description

Technical Field

[0001] This utility model belongs to the technical field of detergent dispenser, specifically relating to a filter structure for the inlet of a detergent dispenser. Background Technology

[0002] A detergent dispenser is a device that provides detergent to users. It typically dispenses detergent by mechanical pressing to facilitate personal hygiene. Common detergent dispensers include hand soap dispensers and shower gel dispensers. Although they differ in capacity, their usage and working principle are largely the same.

[0003] Existing detergent dispensers are generally reusable. After the detergent is used up, it needs to be manually refilled. However, during the refilling process, particulate impurities can easily get mixed into the detergent. If these particulate impurities enter the negative pressure suction device, they can clog the one-way valve in the device, thus affecting its sealing performance.

[0004] Existing detergent dispenser manufacturers offer a wide variety of products with mature production processes. Designing a separate detergent dispenser with a filter would require altering the manufacturing process and increasing costs. Therefore, it is necessary to design an inlet filter structure that can be installed independently on the detergent dispenser. Utility Model Content

[0005] To address the aforementioned problems in the existing technology, this solution provides an inlet filter structure for a washing liquid box.

[0006] The technical solution adopted in this utility model is as follows:

[0007] A liquid inlet filter structure for a detergent dispenser, wherein the detergent dispenser has a liquid inlet in its storage chamber; the liquid inlet filter structure is installed on the liquid inlet.

[0008] The inlet filter structure consists of a circular plug, a U-shaped frame, and an arched filter screen. The U-shaped opening of the U-shaped frame faces upward and is connected to the upper end of the circular plug. The circular plug communicates with the U-shaped cavity of the U-shaped frame. The circular plug is inserted into the inlet. The arched filter screen is installed on the U-shaped frame and covers the U-shaped cavity. The edge of the arched filter screen is connected to the edge of the U-shaped frame.

[0009] As an alternative or supplement to the above structure: the outer wall of the circular connector is provided with several anti-slip protrusions.

[0010] As an alternative or supplement to the above structure: the outer diameter of the U-shaped frame is larger than the outer diameter of the circular connector.

[0011] As an alternative or supplement to the above structure: the washing liquid box is a wall-mounted structure.

[0012] As an alternative or supplement to the above structure: the top of the liquid storage chamber of the washing liquid box is provided with an openable and closable lid.

[0013] As an alternative or supplement to the above structure: a negative pressure suction device is provided below the liquid storage chamber of the washing liquid box; a three-way channel is provided inside the negative pressure suction device, the first port of the three-way channel is connected to the liquid inlet, the second port is connected to the liquid outlet, and a piston head is provided at the third port; a first one-way valve is provided at the first port, and a second one-way valve is provided at the second port.

[0014] As an alternative or supplement to the above structure: a pressing plate is provided on the front side of the negative pressure aspirator. The pressing plate is rotatably connected to the main body and is used to push the piston head to move.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. The inlet filter structure in this solution has a simple structure. When the inlet size is appropriate, it can be installed on washing liquid boxes of different capacities. Furthermore, since the inlet filter structure is an independently installable structure, there is no need to change the structure of the washing liquid box itself, and it does not affect the manufacturing cost of the washing liquid box.

[0017] 2. In addition, the inlet filtration structure in this solution adopts an arched filter screen, which can increase the filtration efficiency of the washing liquid and filter out particulate matter in the washing liquid, preventing particulate matter from entering the negative pressure suction device and affecting the normal use of the washing liquid box. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this scheme or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0019] Figure 1 This is a three-dimensional structural diagram of the liquid inlet filter structure;

[0020] Figure 2 This is a cross-sectional structural diagram of the liquid inlet filter structure;

[0021] Figure 3 This is a 3D structural diagram of the detergent dispenser;

[0022] Figure 4 This is a cross-sectional structural diagram of the detergent dispenser;

[0023] Figure 5 This is a schematic diagram of the negative pressure suction device;

[0024] Figure 6 This is a cross-sectional view of a negative pressure suction device.

[0025] In the diagram: 1-Main box body; 2-Box cover; 3-Pressing plate; 4-Inlet filter structure; 41-Circular connector; 42-U-shaped frame; 43-Arched filter screen; 5-Negative pressure suction device; 51-Second check valve; 52-Piston head; 53-Outlet; 54-First check valve. Detailed Implementation

[0026] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are only a part of the embodiments, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments in this solution without creative effort are within the protection scope of this solution.

[0027] Example 1

[0028] like Figures 1 to 2 As shown, this embodiment designs a liquid inlet filter structure 4 for a washing liquid box, including a circular plug 41, a U-shaped frame 42, and an arched filter screen 43.

[0029] The U-shaped frame 42 has a U-shaped structure, with each end of the U-shaped frame 42 being arc-shaped. The U-shaped opening of the U-shaped frame 42 faces upward and is connected to the upper end of the circular connector 41.

[0030] The circular connector 41 is in the shape of a cylindrical tube, and its cavity is connected to the U-shaped cavity of the U-shaped frame 42. In use, the circular connector 41 is inserted into the liquid inlet. The outer wall of the circular connector 41 is provided with several anti-slip protrusions to prevent slipping when inserted into the liquid inlet of the liquid storage cavity of the detergent box.

[0031] An arched filter screen 43 is fixedly mounted on a U-shaped frame 42, covering the U-shaped cavity. The edge of the arched filter screen 43 is connected to the edge of the U-shaped frame 42.

[0032] The liquid storage chamber of the detergent box is equipped with an inlet; the inlet filter structure 4 can be plugged into the inlet during use.

[0033] The outer diameter of the U-shaped bracket 42 is larger than the outer diameter of the circular connector 41, thereby preventing the U-shaped bracket 42 from being inserted into the liquid inlet and affecting the safety of the use of the U-shaped bracket 42.

[0034] Example 2

[0035] like Figures 1 to 6 As shown, this embodiment designs a detergent dispenser, including a main body 1, a lid 2, a pressing plate 3, a liquid inlet filter structure 4, a negative pressure liquid suction device 5, and other components. The detergent dispenser can be wall-mounted.

[0036] The liquid storage chamber of the washing liquid box is provided with an openable and closable lid 2 at the top. When the lid 2 is opened, the washing liquid can be easily added to the main box 1.

[0037] The liquid storage chamber of the detergent box has an inlet at its inner bottom; the inlet filter structure 4 is simply plugged into the inlet during use. The inlet filter structure 4 adopts the structure in Example 1.

[0038] A negative pressure suction device 5 is provided below the liquid storage chamber of the washing liquid box; a three-way channel is provided inside the negative pressure suction device 5, the first port of the three-way channel is connected to the liquid inlet, the second port is connected to the liquid outlet 53, and a piston head 52 is provided at the third port; a first one-way valve 54 is provided at the first port, and a second one-way valve 51 is provided at the second port.

[0039] A pressing plate 3 is provided on the front side of the negative pressure suction device 5. The pressing plate 3 is rotatably connected to the main box 1 and is used to push the piston head 52 to move.

[0040] When the pressing plate 3 is pressed down, the piston head 52 is pressed down, and some of the air or washing liquid in the three-way channel is pushed from the second one-way valve 51 to the outlet 53. When the pressing plate 3 is released, the piston head 52 is reset under the elastic force of the spring, and the washing liquid in the storage chamber is drawn into the three-way channel through the inlet filter structure 4 and the first one-way valve 54.

[0041] The above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation; it is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom remain within the scope of this technology.

Claims

1. A filter structure for the inlet of a detergent dispenser, characterized in that: The liquid storage chamber of the detergent box is provided with an inlet; the inlet filter structure (4) is installed on the inlet: The inlet filter structure (4) consists of a circular connector (41), a U-shaped frame (42), and an arched filter screen (43); the U-shaped opening of the U-shaped frame (42) faces upward and is connected to the upper end of the circular connector (41), and the circular connector (41) communicates with the U-shaped cavity of the U-shaped frame (42); the circular connector (41) is plugged into the inlet; the arched filter screen (43) is installed on the U-shaped frame (42) and covers the U-shaped cavity, and the edge of the arched filter screen (43) is connected to the edge of the U-shaped frame (42).

2. The inlet filter structure of the detergent box according to claim 1, characterized in that: The outer wall of the circular connector (41) is provided with several anti-slip protrusions.

3. The inlet filter structure of the detergent box according to claim 1, characterized in that: The outer diameter of the U-shaped bracket (42) is larger than the outer diameter of the circular connector (41).

4. The inlet filter structure of the detergent box according to claim 1, characterized in that: The detergent dispenser is a wall-mounted type.

5. The inlet filter structure of the detergent box according to claim 1, characterized in that: The liquid storage chamber of the washing liquid box is provided with an openable and closable lid (2).

6. The inlet filter structure of the detergent box according to claim 1, characterized in that: A negative pressure suction device (5) is provided below the liquid storage chamber of the washing liquid box; a three-way channel is provided inside the negative pressure suction device (5), the first port of the three-way channel is connected to the liquid inlet, the second port is connected to the liquid outlet (53), and a piston head (52) is provided at the third port; a first one-way valve (54) is provided at the first port, and a second one-way valve (51) is provided at the second port.

7. The inlet filter structure of the detergent box according to claim 6, characterized in that: A pressing plate (3) is provided on the front side of the negative pressure suction device (5). The pressing plate (3) is rotatably connected to the main box (1) and is used to push the piston head (52) to move.