Liquid control type bottle brush bottle mouth sealing structure

Abstract

The utility model discloses a kind of bottle mouth sealing structures of liquid control type bottle brush, including with the brush head threaded connection liquid storage cylinder, the liquid storage cylinder is prepared by soft material, the opening is provided on the liquid storage cylinder, soft inner plug is covered in the opening, the center of the soft inner plug is provided with the boss that protrudes outward, the center of the boss is provided with through hole one, the one side of the boss towards liquid storage cylinder interior is provided with the soft inner plug sealing valve in through hole one, the soft inner plug sealing valve includes valve seat and valve core, the valve seat is clamped in the boss, the valve core is clamped in the valve seat, and the center of the valve core is provided with the liquid outlet of cross-shaped structure, the liquid outlet is in closed state under initial state, when liquid storage cylinder is extruded, liquid outlet opens and constitutes cross opening. By the structure setting, liquid outlet can be in closed state when not being used, further improve sealing effect, avoid leakage when not being used.

Description

Technical Field

[0001] This utility model relates to the technical field of brushes that handle liquids or gels, specifically a bottle mouth sealing structure for a liquid-control bottle brush. Background Technology

[0002] For cleaning brushes or coating brushes, a typical structure includes a reservoir and a brush head connected to the reservoir's outlet. Existing reservoirs and brush heads generally employ two methods: a fixed structure and a detachable structure. For detachable structures, such as the foam brush disclosed in patent application number 202421759134.7, the reservoir and brush head are connected by a connecting rod, and the connecting rod and reservoir are driven by a pump body. The pump body and reservoir are screwed together. However, this structure has two problems: 1. Using a pump body is relatively expensive; 2. With a threaded connection, the sealing effect deteriorates after prolonged use, and leakage is likely even when not in use. Therefore, improvements are needed. Utility Model Content

[0003] The purpose of this invention is to provide a bottle mouth sealing structure for a liquid-controlling bottle brush to solve the problem mentioned in the background art that the sealing effect of existing bottle mouths deteriorates after long-term use and is prone to leakage even when not in use.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a bottle mouth sealing structure for a liquid-controlling bottle brush, comprising a liquid storage cylinder threadedly connected to the brush head, the liquid storage cylinder being made of a soft material, an opening being provided on the liquid storage cylinder, a soft inner plug being covered inside the opening, a protruding boss being provided at the center of the soft inner plug, a through hole being provided at the center of the boss, a soft inner plug sealing valve being provided on the side of the boss facing the inside of the liquid storage cylinder, the soft inner plug sealing valve comprising a valve seat and a valve core, the valve seat being engaged in the boss, the valve core being engaged in the valve seat, and a cross-shaped liquid outlet being provided at the center of the valve core, the liquid outlet being in a closed state initially, and opening to form a cross opening when the liquid storage cylinder is squeezed.

[0005] Preferably, in order to further improve the sealing performance, the valve seat is provided with a limiting platform, the limiting platform is provided with a trapezoidal platform with a through hole in the center, the valve core includes a valve body that passes through the through hole in the center of the trapezoidal platform, the valve body is provided with an extension platform that is stuck between the trapezoidal platform and the limiting platform, and the liquid outlet is located at the center of the valve body.

[0006] Preferably, in order to improve the clamping effect after installation and improve the sealing performance, a limiting platform 2 is provided on the outer side of the soft inner plug, which abuts against the end face of the liquid storage cylinder opening, and the outer wall of the soft inner plug abuts against the inner wall of the liquid storage cylinder opening.

[0007] Preferably, for ease of gripping, the front and rear sides of the liquid storage cylinder are planar.

[0008] Preferably, the liquid storage cylinder is made of high-elasticity PE polyethylene.

[0009] Preferably, the soft inner plug is made of thermoplastic elastomer (TPE).

[0010] Preferably, the soft inner plug sealing valve is made of medical-grade silicone.

[0011] Compared with the prior art, the beneficial effects of this utility model are: this structure adds a soft inner plug sealing valve at the opening of the liquid storage cylinder to replace the traditional aluminum foil sealing method, which can further ensure that there will be no liquid leakage during the drop test. Compared with the traditional aluminum foil sealing method, this structure can further improve the sealing performance.

[0012] Moreover, compared to existing large-mouth direct liquid storage, this structure can automatically control the liquid flow based on the pressure applied to the liquid storage cylinder, ultimately allowing the liquid output to be controlled according to requirements. Attached Figure Description

[0013] Figure 1 This is a perspective view of the bottle mouth sealing structure of a liquid-controlling bottle brush in Embodiment 1;

[0014] Figure 2 This is a three-dimensional view of the front structure of the soft inner plug in Embodiment 1;

[0015] Figure 3 This is a perspective view of the back structure of the soft inner plug in Embodiment 1;

[0016] Figure 4 This is a three-dimensional view of the front structure of the valve core in Embodiment 1.

[0017] Figure 5 This is a perspective view of the back structure of the valve core in Embodiment 1;

[0018] Figure 6 This is a perspective view of the front structure of the valve seat in Embodiment 1.

[0019] Figure 7 This is a schematic diagram of the combined structure of the soft inner plug and the soft inner plug sealing valve in Example 1;

[0020] Figure 8 for Figure 7 Cross-sectional view along the BB direction;

[0021] Figure 9 for Figure 8Enlarged view of point A.

[0022] In the figure: 1. Liquid storage cylinder; 2. Soft inner plug; 201. Limiting platform 2; 3. Boss; 301. Through hole 1; 4. Soft inner plug sealing valve; 401. Valve seat; 402. Valve core; 403. Liquid outlet; 5. Limiting platform 1; 6. Trapezoidal platform; 7. Valve body; 8. Extension platform. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0025] Example 1

[0026] Please see Figures 1-9 As shown in the figure, this embodiment discloses a bottle mouth sealing structure for a liquid-controlling bottle brush, including a liquid storage cylinder 1 threadedly connected to the brush head. The liquid storage cylinder 1 is made of a soft material, specifically high-elasticity PE polyethylene. For ease of grip, the front and rear sides of the liquid storage cylinder 1 are planar. An opening is provided on the liquid storage cylinder 1, and a soft inner plug 2 is fitted inside the opening. The soft inner plug 2 is made of thermoplastic elastomer TPE. A protruding boss 3 is provided at the center of the soft inner plug 2, and a through hole is provided at the center of the boss 3. 301. A soft inner plug sealing valve 4 is provided on the side of the boss 3 facing the inside of the liquid storage cylinder 1, located in the through hole 1. The soft inner plug sealing valve 4 is made of medical grade silicone. The soft inner plug sealing valve 4 includes a valve seat 401 and a valve core 402. The valve seat 401 is locked in the boss 3, and the valve core 402 is locked in the valve seat 401. The center of the valve core 402 is provided with a cross-shaped liquid outlet 403. The liquid outlet 403 is in a closed state in the initial state. When the liquid storage cylinder 1 is squeezed, the liquid outlet 403 opens to form a cross opening.

[0027] Preferably, in order to further improve the sealing performance, the valve seat 401 is provided with a limiting platform 5, the limiting platform 5 is provided with a trapezoidal platform 6 with a through hole in the center, the valve core 402 includes a valve body 7 that passes through the through hole in the center of the trapezoidal platform 6, the valve body 7 is provided with an extension platform 8 that is stuck between the trapezoidal platform 6 and the limiting platform 5 on the outside, and the liquid outlet 403 is located at the center of the valve body 7.

[0028] Preferably, in order to improve the clamping effect after installation and improve the sealing performance, a limiting platform 201 is provided on the outer side of the soft inner plug 2, which abuts against the end face of the opening of the liquid storage cylinder 1. The outer wall of the soft inner plug 2 abuts against the inner wall of the opening of the liquid storage cylinder 1. By providing a limiting platform 201 on the outer side of the soft inner plug 2 that abuts against the end face of the opening of the liquid storage cylinder 1, the problem of liquid leakage inside the liquid storage cylinder 1 can be further avoided.

[0029] This structure features a flexible inner plug 2 covering the opening of the liquid storage cylinder 1. A raised boss 3 is located inside the flexible inner plug 2, and a flexible inner plug sealing valve 4 is fitted into the through-hole 301 of the boss 3. This flexible inner plug sealing valve 4 consists of a detachable valve seat 401 and a valve core 402, facilitating cleaning of the valve core 402. The valve seat 401 has a centrally located outlet 403 that is initially closed but opens when the liquid storage cylinder 1 is compressed, forming a cross-shaped opening. This ensures that the outlet 403 is sealed when the liquid storage cylinder 1 is compressed (forming a seal, replacing the traditional aluminum foil sealing method), preventing leakage. Furthermore, it facilitates subsequent storage... After a sealing cap is screwed onto the threaded hole on the liquid cylinder 1, the liquid storage cylinder 1 is also convenient for transportation. Therefore, this structure adds a soft inner plug sealing valve 4 at the opening of the liquid storage cylinder 1 to replace the traditional aluminum foil sealing method. This further ensures that there will be no liquid leakage during the drop test. Compared with the traditional aluminum foil sealing method (which is prone to liquid leakage if the traditional aluminum foil vent is not in place or has gaps), this structure can further improve the sealing performance. Moreover, compared with the existing large bottle openings that directly store liquid, this structure can achieve automatic liquid control operation based on the pressure of squeezing the liquid storage cylinder 1, and ultimately achieve the control of the liquid output according to requirements; such as Figure 9 As shown, the outlet 403 has a built-in reinforcing rib structure distributed in a cross shape along the outlet 403, which further ensures that the outlet 403 opens when the pressure exceeds 3.5N and closes quickly after the pressure is released, without leakage.

[0030] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A bottle mouth sealing structure for a liquid-controlling bottle brush, comprising a liquid storage cylinder (1) threadedly connected to the brush head, wherein the liquid storage cylinder (1) is made of a soft material, characterized in that: The liquid storage cylinder (1) is provided with an opening, and a soft inner plug (2) is covered inside the opening. A protruding boss (3) is provided at the center of the soft inner plug (2). A through hole (301) is provided at the center of the boss (3). A soft inner plug sealing valve (4) is provided in the through hole (301) on the side of the boss (3) facing the inside of the liquid storage cylinder (1). The soft inner plug sealing valve (4) includes a valve seat (401) and a valve core (402). The valve seat (401) is locked in the boss (3), and the valve core (402) is locked in the valve seat (401). A cross-shaped liquid outlet (403) is provided at the center of the valve core (402). The liquid outlet (403) is in a closed state in the initial state. When the liquid storage cylinder (1) is squeezed, the liquid outlet (403) opens to form a cross opening.

2. The bottle mouth sealing structure of the liquid-controlling bottle brush according to claim 1, characterized in that: The valve seat (401) is provided with a limiting platform (5), and the limiting platform (5) is provided with a trapezoidal platform (6) with a through hole in the center. The valve core (402) includes a valve body (7) that passes through the through hole in the center of the trapezoidal platform (6). An extension platform (8) is provided on the outside of the valve body (7) and is locked between the trapezoidal platform (6) and the limiting platform (5). The liquid outlet (403) is located at the center of the valve body (7).

3. The bottle mouth sealing structure of the liquid-controlling bottle brush according to claim 1, characterized in that: The outer side of the soft inner plug (2) is provided with a limiting platform (201) that abuts against the end face of the opening of the liquid storage cylinder (1), and the outer wall of the soft inner plug (2) abuts against the inner wall of the opening of the liquid storage cylinder (1).

4. The bottle mouth sealing structure of a liquid-controlling bottle brush according to claim 1, 2, or 3, characterized in that: The front and rear sides of the liquid storage cylinder (1) are planar structures.

5. The bottle mouth sealing structure of a liquid-controlling bottle brush according to claim 1, 2, or 3, characterized in that: The liquid storage cylinder (1) is made of high-elasticity PE polyethylene.

6. The bottle mouth sealing structure of a liquid-controlling bottle brush according to claim 1, 2, or 3, characterized in that: The soft inner plug (2) is made of thermoplastic elastomer TPE.

7. The bottle mouth sealing structure of a liquid-controlling bottle brush according to claim 1, 2, or 3, characterized in that: The soft inner plug sealing valve (4) is made of medical-grade silicone.

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