A drip-proof closure device for a cleaning agent bottle

Abstract

The utility model discloses a kind of anti-dripping cleaning agent bottle with screw cap device, it includes screw cap main body, flow guide component and sealing assembly.Screw cap main body is connected with bottle mouth by thread, and is equipped with drainage plate, flow guide ring and elastic sealing ring and other structures inside.Drainage plate and flow guide ring guide liquid flow, reduce residual;Elastic sealing ring and compression ring enhance sealing performance;Guide rib and drainage protrusion reduce liquid adhesion;Annular liquid storage tank collects residual liquid.The present application can effectively solve the liquid residual and dripping problem of existing screw cap device, improve sealing and use convenience, improve user cleaning experience.

Description

Technical Field

[0001] This utility model relates to the field of packaging container sealing technology, and in particular to a screw cap device for a drip-proof cleaning agent bottle. Background Technology

[0002] Cleaning agent bottles are frequently used in daily cleaning work, especially in home and industrial cleaning scenarios. As an important component of cleaning agent bottles, the screw cap's sealing performance and ease of use directly affect the user experience. For liquid cleaning agents, the screw cap design not only needs to ensure ease of opening and closing, but also needs to have good drip-proof performance to avoid liquid residue or leakage that could lead to waste and contamination.

[0003] Because cleaning agent bottles need to be frequently opened and closed during use, existing screw cap devices mostly use a threaded sealing structure to achieve basic functionality. However, in practical applications, liquid can easily remain on the inner wall of the screw cap or at the bottle opening, preventing a complete seal when the cap is closed and leading to leakage. Furthermore, some screw cap designs lack effective drainage measures after opening, further increasing the possibility of liquid spillage, causing considerable inconvenience for users. Utility Model Content

[0004] The purpose of this utility model is to provide a screw cap device for a drip-proof cleaning agent bottle, which solves the problems mentioned in the background art.

[0005] This utility model is implemented as follows: a screw cap device for a drip-proof cleaning agent bottle includes a screw cap body, a flow guiding component, and a sealing component. The screw cap body is a cylindrical shell structure with a through chamber inside for containing liquid cleaning agent. The bottom opening of the screw cap body is threaded to fit into the mouth of the cleaning agent bottle, and the surface of the threaded connection is roughened to increase friction and facilitate user operation.

[0006] The flow guiding assembly includes a flow guiding plate fixedly installed at the top of the inner cavity of the cap body and a flow guiding ring located below the flow guiding plate. The flow guiding plate has an arc-shaped structure with its edges bent downwards and extending to the inner wall of the cap body to form a closed flow guiding channel. A circular through hole is opened at the center of the flow guiding plate, and the diameter of the through hole is slightly smaller than the inner diameter of the flow guiding ring. The flow guiding ring is fixed to the middle position of the inner cavity of the cap body by a snap-fit ​​structure. The inner wall of the flow guiding ring is provided with multiple evenly distributed flow guiding grooves. The cross-section of the flow guiding grooves is trapezoidal, and the upper opening is wider than the lower opening to guide the liquid to flow along the flow guiding grooves and reduce residue.

[0007] The sealing assembly includes an elastic sealing ring located at the bottom of the cap body and a clamping ring located above the elastic sealing ring. The elastic sealing ring is an annular structure made of silicone, which has good elasticity and corrosion resistance. The outer diameter of the elastic sealing ring matches the inner diameter of the cap body and is fixed to the inner bottom of the cap body by an interference fit. The clamping ring is made of metal, and its outer diameter is the same as the inner diameter of the cap body. The bottom of the clamping ring has an annular protrusion that is embedded in the upper surface of the elastic sealing ring to enhance the sealing effect. The clamping ring is fixed to the inner wall of the cap body by three screws, which are evenly distributed along the circumference of the clamping ring to ensure that the clamping ring applies uniform pressure to the elastic sealing ring.

[0008] Preferably, a rotating handle is provided on the top of the cap body. The rotating handle has a disc-shaped structure, and its bottom is fixedly connected to the top of the cap body through a bearing. The inner ring of the bearing is interference-fitted with the bottom journal of the rotating handle, and the outer ring is interference-fitted with the inner wall of the top of the cap body. The outer surface of the rotating handle is provided with anti-slip texture to improve the convenience of operation.

[0009] Preferably, the lower surface of the drainage plate is provided with a plurality of evenly distributed drainage protrusions. The drainage protrusions are hemispherical structures with a diameter of 2 mm and a height of 1 mm. The surface of the drainage protrusions is polished to reduce liquid adhesion. The function of the drainage protrusions is to guide the liquid remaining on the drainage plate to the guide groove of the guide ring when the cap is closed, thereby reducing liquid residue.

[0010] Preferably, the bottom of the guide ring is provided with an annular liquid storage tank, the width of the annular liquid storage tank is 3mm and the depth is 2mm. The inner wall of the annular liquid storage tank is coated with a hydrophobic coating to prevent liquid from accumulating in the tank. The function of the annular liquid storage tank is to collect the liquid flowing out of the guide tank and prevent the liquid from flowing back into the inner cavity of the cap body.

[0011] Preferably, the inner wall of the cap body is provided with a plurality of evenly distributed guide ribs. The guide ribs are elongated structures with their length direction parallel to the axis of the cap body. The cross-section of the guide ribs is rectangular with a width of 2 mm and a height of 1 mm. The function of the guide ribs is to guide the liquid to flow along the direction of the guide ribs during the rotation of the cap, thereby reducing the liquid residue on the inner wall of the cap.

[0012] Preferably, the inner wall of the elastic sealing ring is provided with multiple evenly distributed sealing protrusions. The sealing protrusions are annular structures with a semi-circular cross-section and a height of 1mm. The function of the sealing protrusions is to make tight contact with the mouth of the cleaning agent bottle when the cap is closed, thereby enhancing the sealing effect.

[0013] This utility model provides a capping device for anti-drip cleaning agent bottles, the benefits of which are reflected in the following aspects: First, by setting a flow guide plate and a flow guide ring, the liquid can be effectively guided to flow along a predetermined path, reducing liquid residue in the inner cavity of the cap; second, by setting an elastic sealing ring and a clamping ring, the sealing performance between the cap and the bottle mouth can be enhanced, preventing liquid leakage; third, by setting guide ribs and flow guide protrusions, the adhesion of liquid to the inner wall can be reduced during cap rotation, thereby reducing the risk of dripping; finally, by setting an annular liquid storage tank and a hydrophobic coating, residual liquid can be effectively collected and its backflow prevented, further improving the anti-drip performance. In summary, this utility model, through the synergistic effect of multiple structures, solves the problems of liquid residue and dripping in existing capping devices, improving the user experience. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention, showing the external shape of the capping device and the layout of its main components, including the capping body, the rotating handle, and the threaded connection part.

[0015] Figure 2 This is a cross-sectional view of the internal structure of this utility model, which reveals in detail the structural relationship between the flow guiding component and the sealing component, including the position and connection method of the flow guiding plate, the flow guiding ring, the elastic sealing ring and the compression ring.

[0016] Figure 3 This is a partial enlarged view of the guide ring of this utility model, which focuses on the design details and distribution of the guide groove and the annular liquid storage tank.

[0017] The attached figures are labeled as follows:

[0018] 1. Cap body; 2. Rotating handle; 3. Drain plate; 4. Guide ring; 5. Elastic sealing ring; 6. Pressing ring; 7. Guide groove; 8. Annular liquid storage tank; 9. Guide rib; 10. Sealing protrusion. Detailed Implementation

[0019] This utility model provides a screw cap device for a leak-proof cleaning agent bottle, the specific implementation of which is described in conjunction with the attached diagram. Figure 1 To be continued Figure 3 A detailed description will be provided below. This capping device mainly consists of a capping body 1, a rotating handle 2, a flow guide plate 3, a flow guide ring 4, an elastic sealing ring 5, a clamping ring 6, a flow guide groove 7, an annular liquid storage tank 8, guide ribs 9, and a sealing protrusion 10. The following will detail the overall structural layout, the specific design of each component, and their connection, positional relationships, and mutual cooperation.

[0020] As attached Figure 1As shown, the capping body 1 is a cylindrical shell structure with a through-cavity for containing liquid cleaning agent. A rotating handle 2 is located at the top of the capping body 1. The bottom of the rotating handle 2 is fixedly connected to the top of the capping body 1 via a bearing. The inner ring of the bearing is interference-fitted with the bottom journal of the rotating handle 2, and the outer ring is interference-fitted with the inner wall of the top of the capping body 1, thus achieving stable rotation of the rotating handle 2 on the capping body 1. The outer surface of the rotating handle 2 has anti-slip textures to increase friction during operation. A thread is provided at the bottom opening of the capping body 1, which mates with the mouth of the cleaning agent bottle. The surface of the thread is roughened to increase friction, making it easy for the user to manually tighten or loosen the cap.

[0021] Combined with appendix Figure 2 As can be seen, a flow guiding assembly and a sealing assembly are provided in the inner cavity of the capping body 1. The flow guiding assembly includes a flow guiding plate 3 and a flow guiding ring 4. The flow guiding plate 3 is fixedly installed at the top of the inner cavity of the capping body 1, and its edge bends downward and extends to the inner wall of the capping body 1 to form a closed flow guiding channel. A circular through hole is opened at the center of the flow guiding plate 3. The diameter of the through hole is slightly smaller than the inner diameter of the flow guiding ring 4, so that liquid can flow into the interior of the flow guiding ring 4 through the through hole. The flow guiding ring 4 is fixed to the middle of the inner cavity of the capping body 1 by a snap-fit ​​structure. Multiple evenly distributed flow guiding grooves 7 are provided on its inner wall. The cross-section of the flow guiding grooves 7 is trapezoidal, and the upper opening is wider than the lower opening. This design can guide the liquid to flow along the flow guiding grooves 7 and reduce residue. An annular liquid storage tank 8 is also provided at the bottom of the flow guiding ring 4. The annular liquid storage tank 8 is 3mm wide and 2mm deep. Its inner wall is coated with a hydrophobic coating to prevent liquid from accumulating in the tank. The function of the annular liquid storage tank 8 is to collect the liquid flowing out of the guide tank 7 and prevent the liquid from flowing back into the inner cavity of the capping body 1.

[0022] The lower surface of the drainage plate 3 is provided with multiple evenly distributed drainage protrusions. These protrusions are hemispherical in shape, 2 mm in diameter and 1 mm in height, and their surfaces are polished to reduce liquid adhesion. The function of these protrusions is to guide any remaining liquid on the drainage plate 3 to the guide groove 7 of the guide ring 4 when the cap is closed, thereby further reducing liquid residue. The inner wall of the cap body 1 is provided with multiple evenly distributed guide ribs 9. These guide ribs 9 are elongated strips, their length parallel to the axis of the cap body 1, with a rectangular cross-section, a width of 2 mm, and a height of 1 mm. The purpose of the guide ribs 9 is to guide the liquid to flow along their direction during cap rotation, thereby reducing liquid residue on the inner wall of the cap.

[0023] The sealing assembly includes an elastic sealing ring 5 and a clamping ring 6. The elastic sealing ring 5 is located on the inner side of the bottom of the capping body 1 and is made of silicone, which has good elasticity and corrosion resistance. The outer diameter of the elastic sealing ring 5 matches the inner diameter of the capping body 1 and is fixed to the inner side of the bottom of the capping body 1 by an interference fit. The inner wall of the elastic sealing ring 5 has multiple evenly distributed sealing protrusions 10. The sealing protrusions 10 have an annular structure with a semi-circular cross-section and a height of 1 mm. The purpose of the sealing protrusions 10 is to make tight contact with the mouth of the cleaning agent bottle when the cap is closed, thereby enhancing the sealing effect. The clamping ring 6 is located above the elastic sealing ring 5 and is made of metal. Its outer diameter is the same as the inner diameter of the capping body 1. The bottom of the clamping ring 6 has an annular protrusion that is embedded in the upper surface of the elastic sealing ring 5 to further enhance the sealing performance. The clamping ring 6 is fixed to the inner wall of the cap body 1 by three screws. The screws are evenly distributed along the circumference of the clamping ring 6 to ensure that the clamping ring 6 applies uniform pressure to the elastic sealing ring 5.

[0024] In actual use, when the user needs to open the cleaning agent bottle, they rotate the cap body 1 counterclockwise by rotating the handle 2 to separate it from the bottle opening. At this time, the liquid cleaning agent can flow out through the chamber of the cap body 1. During the outflow process, the liquid is guided by the guide plate 3 and the guide ring 4. The arc-shaped structure and the guide protrusion of the guide plate 3 work together to guide the liquid into the guide groove 7 of the guide ring 4. The trapezoidal cross-section design of the guide groove 7 can effectively reduce liquid residue. After flowing along the guide groove 7, the liquid enters the annular liquid storage tank 8. The hydrophobic coating of the annular liquid storage tank 8 further prevents liquid accumulation and avoids liquid backflow into the inner cavity of the cap body 1.

[0025] When the user needs to close the cleaning agent bottle, they rotate the cap body 1 clockwise by rotating the handle 2, causing it to fit tightly against the bottle opening via a threaded connection. During this process, the elastic sealing ring 5 contacts the bottle opening, and the sealing protrusion 10 further enhances the sealing effect, ensuring that no liquid leakage occurs after the cap is closed. Simultaneously, the compression ring 6 applies uniform pressure via screws, keeping the elastic sealing ring 5 in a stable compressed state, thus achieving reliable sealing performance.

[0026] During the cap rotation process, the design of the guide rib 9 plays a crucial role. The amount of liquid residue on the inner wall of the cap is significantly reduced due to the presence of the guide rib 9, and the liquid flows along the length of the guide rib 9, avoiding disordered distribution of liquid on the inner wall of the cap. Furthermore, the drainage protrusions of the drainage plate 3 and the drainage grooves 7 of the guide ring 4 work together to further reduce the possibility of liquid residue.

[0027] Through the synergistic cooperation of the above structures, the capping device of this utility model achieves efficient diversion and reliable sealing of liquid cleaning agent, solving the problems of liquid residue and leakage in the prior art. To better enable those skilled in the art to fully understand and implement this utility model, the specific implementation principle of this utility model is further explained below in conjunction with a specific application scenario.

[0028] In a household cleaning scenario, when a user needs to use the liquid cleaning agent in the bottle, they first rotate the cap body 1 counterclockwise by rotating the handle 2. At this time, the threads at the bottom of the cap body 1 gradually separate from the bottle opening, allowing the liquid cleaning agent to flow out of the bottle opening and into the chamber of the cap body 1. Inside the chamber, the liquid is guided by the guide plate 3 and the guide ring 4. The arc-shaped structure of the guide plate 3 concentrates the liquid into a circular through-hole at its center, through which the liquid flows into the interior of the guide ring 4. Multiple guide grooves 7 on the inner wall of the guide ring 4 have a trapezoidal cross-section design, with the upper opening wider than the lower opening. This structure effectively reduces the amount of liquid residue in the guide grooves 7. After flowing downwards along the guide grooves 7, the liquid finally enters the annular liquid storage tank 8 at the bottom of the guide ring 4. The inner wall of the annular liquid storage tank 8 is coated with a hydrophobic coating, 3mm wide and 2mm deep, which prevents liquid accumulation and avoids backflow into the inner cavity of the cap body 1. Through the design of the above structure, the liquid is efficiently guided during the outflow process, reducing the disordered distribution of liquid in the inner cavity of the cap.

[0029] When the user finishes using the cleaning agent and needs to close the bottle, they rotate the cap body 1 clockwise by rotating the handle 2, causing the threads at the bottom to re-engage tightly with the bottle opening. During this process, the elastic sealing ring 5 contacts the bottle opening, and the multiple sealing protrusions 10 on the inner wall of the elastic sealing ring 5 further enhance the sealing effect. The sealing protrusions 10 are annular structures with a semi-circular cross-section and a height of 1mm, which can form a tight fit with the bottle opening when the cap is closed, thereby effectively preventing liquid leakage. At the same time, the compression ring 6 is fixed to the inner wall of the cap body 1 by three evenly distributed screws, and its bottom annular protrusion is embedded in the upper surface of the elastic sealing ring 5, applying uniform pressure to the elastic sealing ring 5 to ensure that it always maintains a stable compression state. This structural design not only improves the sealing performance but also ensures the reliability of the capping device after multiple opening and closing operations.

[0030] During the cap rotation process, liquid may remain on the inner wall of the cap body 1. To avoid this, multiple guide ribs 9 are provided on the inner wall of the cap body 1. The guide ribs 9 are elongated structures with their length direction parallel to the axis of the cap body 1, and have a rectangular cross-section with a width of 2 mm and a height of 1 mm. The presence of the guide ribs 9 allows the liquid to flow along its length direction, avoiding disordered distribution of liquid on the inner wall of the cap. In addition, multiple drainage protrusions are provided on the lower surface of the drainage plate 3. These drainage protrusions are hemispherical structures with a diameter of 2 mm and a height of 1 mm, and their surfaces are polished to reduce liquid adhesion. The function of the drainage protrusions is to guide the liquid remaining on the drainage plate 3 to the drainage groove 7 of the guide ring 4 when the cap is closed, thereby further reducing the possibility of liquid residue.

[0031] As can be seen from the above steps, the capping device of this utility model achieves efficient diversion and reliable sealing of liquid cleaning agent during actual use. The diversion plate 3, the guide ring 4, the annular liquid storage tank 8, and the guide rib 9 work together to significantly reduce the amount of liquid residue in the capping cavity; while the structural design of the elastic sealing ring 5, the sealing protrusion 10, and the compression ring 6 effectively solves the problem of liquid leakage. This multi-structure synergy not only improves the user's operational convenience but also greatly reduces the risk of liquid dripping, thereby improving the user experience of the cleaning agent bottle.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A screw cap device for a drip-proof cleaning agent bottle, comprising a screw cap body (1), characterized in that, Also includes: The flow guiding assembly includes a flow guiding plate (3) and a flow guiding ring (4). The flow guiding plate (3) is fixedly set at the top of the inner cavity of the capping body (1). The edge of the flow guiding plate (3) bends downward and extends to the inner wall of the capping body (1) to form a closed flow guiding channel. A circular through hole is opened at the center of the flow guiding plate (3). The flow guiding ring (4) is fixed at the middle position of the inner cavity of the capping body (1) by a snap-fit ​​structure. The inner wall of the flow guiding ring (4) is provided with multiple evenly distributed flow guiding grooves (7). The cross section of the flow guiding grooves (7) is trapezoidal. The sealing assembly includes an elastic sealing ring (5) and a clamping ring (6). The elastic sealing ring (5) is located on the inner side of the bottom of the capping body (1). The outer diameter of the elastic sealing ring (5) matches the inner diameter of the capping body (1) and is fixed by an interference fit. The clamping ring (6) is located above the elastic sealing ring (5) and is fixed to the inner wall of the capping body (1) by screws. The bottom of the clamping ring (6) is provided with an annular protrusion, which is embedded in the upper surface of the elastic sealing ring (5).

2. The screw capping device for an anti-drip cleaning agent bottle according to claim 1, characterized in that, The top of the cap body (1) is provided with a rotating handle (2), the bottom of the rotating handle (2) is fixedly connected to the top of the cap body (1) through a bearing, and the outer surface of the rotating handle (2) is provided with anti-slip texture.

3. The screw cap device for an anti-drip cleaning agent bottle according to claim 1, characterized in that, The lower surface of the drainage plate (3) is provided with a plurality of evenly distributed drainage protrusions. The drainage protrusions are hemispherical structures with a diameter of 2 mm and a height of 1 mm. The surface of the drainage protrusions is polished.

4. The screw capping device for an anti-drip cleaning agent bottle according to claim 1, characterized in that, The bottom of the guide ring (4) is provided with an annular liquid storage tank (8), which has a width of 3 mm and a depth of 2 mm. The inner wall of the annular liquid storage tank (8) is coated with a hydrophobic coating.

5. A screw capping device for an anti-drip cleaning agent bottle according to claim 1, characterized in that, The inner wall of the cap body (1) is provided with a plurality of evenly distributed guide ribs (9). The guide ribs (9) are long strip structures, and their length direction is parallel to the axis of the cap body (1). The cross section of the guide ribs (9) is rectangular, with a width of 2 mm and a height of 1 mm.

6. The screw capping device for an anti-drip cleaning agent bottle according to claim 1, characterized in that, The inner wall of the elastic sealing ring (5) is provided with a plurality of evenly distributed sealing protrusions (10). The sealing protrusions (10) are annular structures with a semi-circular cross section and a height of 1 mm.

7. A screw capping device for an anti-drip cleaning agent bottle according to claim 1, characterized in that, The bottom opening of the cap body (1) is provided with threads, and the surface of the threads is roughened.

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