A liquid bottle cap assembly with a sliding dust cover and a container

Abstract

This application relates to a liquid bottle cap assembly and container with a sliding dust cover. By setting independent gas and liquid flow channels, the liquid and gas flow channels do not interfere with each other, thus making the flow rate of the liquid flow channel easier to control. The length of the gas flow channel is longer than that of the liquid flow channel. When pouring liquid, a larger pressure difference is generated between the liquid outlet and the gas inlet, resulting in a more stable and controllable liquid flow rate; when dispensing stops, the liquid backflow is more rapid. A through-hole assembly is provided on the upper inner cover. The first through-hole of the through-hole assembly fixes the liquid outlet, and the second through-hole communicates with the gas flow channel, preventing the backflow of a very small amount of liquid that may occur accidentally when dispensing stops. The backflowing liquid can still fall into the bottle cap assembly and flow back into the bottle body, making the backflow more reliable. The through-hole assembly, together with the sliding cover for protection, facilitates operation. The area of ​​the sliding cover is larger than the area of ​​the sliding window to prevent the sliding cover from falling off. A stroke block is set inside the upper cover to limit the sliding of the sliding cover, making the sliding cover slide smoothly and the operation more convenient.

Description

Technical Field

[0001] This application relates to the field of liquid bottle caps and containers, and more particularly to a liquid bottle cap assembly and container with a sliding dust cover. Background Technology

[0002] In daily life, household and commercial liquid condiments (such as soy sauce, vinegar, and cooking oil), cleaning agents, and care solutions are often stored and dispensed in bottles or jugs with pouring spouts. The design of the dispensing spout in these containers typically has the following significant drawbacks:

[0003] 1. An excessively large or poorly designed outlet can cause interference between the gas and liquid channels. Existing devices commonly use large circular or elongated open outlets. When pouring liquid, air needs to enter the bottle simultaneously to balance the pressure. However, an excessively large or poorly shaped outlet causes the liquid outflow channel to highly overlap or even completely merge with the air inflow channel. This interference between the gas and liquid channels leads to instability in the liquid flow, making it difficult for users to achieve a smooth, low-flow pour. Fluctuations in flow rate, such as sudden increases or decreases, or interruptions and surges, make precise flow control difficult. The unstable liquid flow and air disturbances cause the liquid to easily flow down the outer wall of the bottle opening upon leaving the outlet, contaminating the bottle body, opening, and the surface on which it is placed, resulting in easy dripping / leaking.

[0004] 2. Bottle opening contamination and hygiene issues. The aforementioned liquid spillage directly leads to long-term liquid residue at and around the bottle opening. This residue attracts dust and breeds bacteria, not only affecting aesthetics but also posing significant hygiene risks. Especially in damp environments such as kitchens, residual grease and sauces are more prone to spoilage and mold.

[0005] 3. Inconvenient operation of protective caps. To prevent leakage and contamination during transportation and storage, these bottles are usually equipped with protective caps such as screw caps, flip caps, or snap caps. However, existing protective caps are cumbersome to open / close, requiring both hands (such as unscrewing the screw cap), or requiring the user to use their fingers to push open or hold the cap while pouring, making operation inconvenient and inefficient. Additionally, caps removed during pouring (such as screw caps) need to be temporarily stored, making them prone to loss or contamination; flip caps or snap caps, although attached to the bottle, may obstruct pouring or require continuous force to secure, affecting the user experience and being prone to loss or contamination. Furthermore, some caps are difficult to maintain a good seal after repeated use, leading to liquid leakage or evaporation; while others are difficult to operate due to excessive opening and closing resistance, resulting in insufficient or excessive sealing.

[0006] Therefore, existing liquid pouring devices suffer from significant drawbacks, including difficulty in controlling the pouring flow, easy leakage and contamination of the bottle mouth, poor hygiene, and inconvenient operation of the protective cap. There is an urgent need for a structurally improved liquid pouring device that can effectively solve the gas-liquid separation problem, achieve stable and controllable pouring, prevent liquid leakage and contamination, and improve the ease of operation of the protective cap. Utility Model Content

[0007] The technical problem this application aims to solve is that existing liquid pouring devices suffer from significant drawbacks, such as difficulty in controlling the pouring flow, easy leakage and contamination of the bottle mouth, poor hygiene, and inconvenient operation of the protective cap. To address these shortcomings, this application provides a liquid bottle cap assembly with a sliding dust cover.

[0008] To solve the above-mentioned technical problems, the technical solution adopted in this application is:

[0009] A liquid bottle cap assembly with a sliding dust cover is constructed, comprising an outer cap, a lower inner cap disposed within the outer cap, and an upper inner cap disposed between the outer cap and the lower inner cap. The lower inner cap, upper inner cap, and outer cap are connected by a locking structure, allowing the lower inner cap and upper inner cap to rotate synchronously with the outer cap. The lower inner cap has independent liquid and gas flow channels, which are respectively located on both sides of the lower inner cap.

[0010] Preferably, the length of the gas flow channel is greater than the length of the liquid flow channel, the liquid flow channel includes a liquid inlet and a liquid outlet located above the liquid inlet, the gas flow channel includes an air inlet and an air outlet located below the air inlet, and the liquid inlet and the air inlet are located on the same horizontal plane.

[0011] Preferably, the upper inner cover is provided with a through hole group, the through hole group includes a first through hole and multiple sets of second through holes, the liquid flow channel is placed in the first through hole, a flow guide cavity is left between the inner wall of the upper inner cover and the upper end face of the lower inner cover, and the second through hole is connected to the air inlet through the flow guide cavity to allow gas flow.

[0012] Preferably, the second through hole is arranged around the first through hole, and a recess is also provided at the through hole group, with both the second through hole and the second through hole located at the recess.

[0013] Preferably, the outer cover is provided with a sliding window, and the sliding window is provided with a sliding cover. The sliding cover is placed between the upper inner cover and the outer cover and can move within the sliding window to open or close the sliding window. When the sliding window is closed, the liquid flow channel and the gas flow channel are closed. When the sliding window is opened, the liquid flow channel and the gas flow channel are open.

[0014] Preferably, the outer cover has a travel block inside, and the sliding cover cannot continue to slide when it contacts the side of the travel block. The area of ​​the sliding cover is larger than the area of ​​the sliding window, and the sliding cover has an upper convex surface, which contacts the side of the sliding window when the sliding cover slides.

[0015] Preferably, the locking structure includes a locking post disposed on the lower inner cover, the locking post having a through hole for the lower inner cover, the locking structure also includes a cross hole disposed on the upper inner cover, and a cross post disposed on the outer cover, the cross hole being inserted into the cross post to cause the upper inner cover and the outer cover to move synchronously, the cross post having a locking hole, and the locking structure also includes a locking screw passing through the through hole of the lower inner cover and connected to the locking hole, the end of the locking screw being placed inside the locking post.

[0016] Preferably, the outer cover has a step inside, the lower inner cover has an outer flange corresponding to the step, the outer flange has a positioning groove, and the step has a positioning block corresponding to the positioning groove. When the lower inner cover is connected to the outer cover, the positioning block is placed at the positioning groove, and the lower inner cover rotates synchronously with the outer cover when the outer cover rotates.

[0017] A container is constructed comprising a bottle body with an opening only at the top, a liquid storage chamber being formed inside the bottle body, and a liquid bottle cap assembly with a sliding dust cover as described above being connected to the opening, the bottle cap assembly being detachably connected to the bottle body.

[0018] Preferably, the bottle body and the bottle cap assembly are detachably connected by threads, and a sealing ring is provided at the connection between the bottle body and the bottle cap assembly.

[0019] The beneficial effects of this application are as follows: By setting independent gas and liquid flow channels, the liquid and gas flow channels do not interfere with each other, thus making it easier to control the flow rate of the liquid flow channel. Furthermore, the length of the gas flow channel is greater than that of the liquid flow channel, resulting in a larger pressure difference between the liquid outlet and the gas inlet when pouring liquid, leading to a more stable and controllable liquid flow rate. When dispensing stops, the liquid backflow is more rapid, preventing liquid from flowing around the outlet. Simultaneously, a through-hole assembly is provided on the upper inner cover. The first through-hole of the assembly fixes the liquid outlet, and the second through-hole communicates with the gas flow channel, preventing accidental backflow of a very small amount of liquid when dispensing stops. This backflowed liquid can still fall into the cap assembly and flow back into the bottle body, resulting in higher reliability of backflow. The through-hole assembly is also protected by a sliding cover for easy operation. The sliding cover area is larger than the sliding window area to prevent the sliding cover from falling off, and the stroke block inside the upper cover limits the sliding of the sliding cover, facilitating its movement and making operation more convenient. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the present application will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a three-dimensional structural diagram of the container according to a preferred embodiment of this application;

[0022] Figure 2 This is a cross-sectional view of the container according to a preferred embodiment of this application;

[0023] Figure 3 This is a three-dimensional structural diagram of the bottle cap assembly according to a preferred embodiment of this application;

[0024] Figure 4 This is an exploded view of the bottle cap assembly according to a preferred embodiment of this application;

[0025] Figure 5 This is a three-dimensional structural diagram of the outer cover according to a preferred embodiment of this application;

[0026] Figure 6 This is a three-dimensional structural diagram of the lower inner cover according to a preferred embodiment of this application;

[0027] Figure 7 This is another perspective structural diagram of the lower inner cover according to a preferred embodiment of this application;

[0028] Figure 8 This is a three-dimensional structural diagram of the upper inner cover according to a preferred embodiment of the present application;

[0029] Figure 9 This is a three-dimensional structural diagram of the sliding cover according to a preferred embodiment of this application. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, a clear and complete description will be provided below in conjunction with the technical solutions in the embodiments of this application. Obviously, the described embodiments are some embodiments of this application, but not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this application.

[0031] A preferred embodiment of this application provides a liquid bottle cap assembly and container with a sliding dust cover; such as... Figures 1-2As shown, the device includes a bottle body 1 with an opening at the top and a liquid storage chamber 10 inside. The outer wall of the bottle body opening is provided with external threads, and a bottle cap assembly 2 connected to the external threads is also provided at the bottle body opening. The bottle cap assembly is detachably connected to the bottle body via threads, which makes it convenient to pour liquid into the liquid chamber after removing the bottle cap assembly for subsequent use.

[0032] Specifically, such as Figures 2-4 As shown, the bottle cap assembly 2 includes an outer cap 20 threadedly connected to the bottle body, and a lower inner cap 23 disposed inside the outer cap. An upper inner cap 22 is also disposed between the lower inner cap and the outer cap. The upper inner cap, lower inner cap, and outer cap are connected by locking screws 24 and rotate synchronously. The lower inner cap 23 is also provided with a liquid flow channel 230 and a gas flow channel 231 communicating with the liquid storage chamber 10. The gas flow channel and liquid flow channel are independently configured, thereby separating the air inlet and liquid outlet channels to prevent interference between them. This avoids mutual interference between air inlet and liquid outlet when pouring liquid, making the liquid flow rate easier to control. It also prevents liquid from flowing around the bottle opening during pouring, resulting in a more aesthetically pleasing and hygienic appearance. A sliding cover 21 is provided corresponding to the liquid flow channel and gas flow channel. Pushing the sliding cover to move it can close or open the liquid flow channel and gas flow channel to protect the cleanliness of the liquid outlet channel and facilitate operation.

[0033] Furthermore, such as Figures 2-9As shown, the lower inner cover 23 is provided with a liquid flow channel 230 and a gas flow channel 231, which are respectively located on the left and right sides of the lower inner cover. The lower end of the liquid flow channel 230 is connected to the liquid storage chamber 10, with one end being a liquid inlet 2300 and the other end being a liquid outlet 2301. The lower end of the gas flow channel 231 is connected to the liquid storage chamber 10, with one end being a gas outlet 2310 and the other end being a gas inlet 2311. At the same time, the gas inlet is located on the upper surface of the lower inner cover. To facilitate gas intake, a guide cavity 25 is left between the upper end face 236 of the lower inner cover and the inner wall of the upper inner cover 23. The system is equipped with a through-hole group 220, including a first through-hole 222. The outlet of the liquid flow channel 230 is located at the first through-hole. Multiple sets of second through-holes 223 are arranged around the first through-hole, creating airflow between the second through-holes and the guide cavity. Gas enters the guide cavity through the first through-hole, then enters the gas flow channel through the air inlet, and finally enters the liquid storage cavity through the air outlet. This ensures that the air pressure above the liquid in the liquid storage cavity is the same as the external air pressure. When pouring the liquid, it enters the liquid inlet 2300, then flows into the liquid flow channel, and finally exits through the liquid outlet. To better facilitate liquid pouring, the height of the air outlet is lower than the height of the liquid inlet in the vertical direction. That is, the distance between the air outlet and the bottom of the liquid storage cavity is less than the distance between the liquid inlet and the bottom of the liquid storage cavity. This results in the length of the gas flow channel being greater than the length of the liquid flow channel. When pouring the liquid, a large pressure difference is generated between the liquid outlet and the air inlet, ensuring a stable and controllable liquid flow rate. Furthermore, when dispensing stops, the liquid can quickly flow back without overflowing around the liquid outlet. By separating the gas flow channel and the liquid flow channel to prevent interference, the liquid pouring flow rate is easier to control, avoiding liquid spillage around the outlet. Simultaneously, a recessed portion 224 is provided at the through-hole assembly, with both the first and second through-holes located within this recessed portion. When a small amount of liquid remains at the outlet, it will flow through the outer wall of the liquid flow channel into the recessed portion, and then through the first through-hole into the guide cavity. The upper surface of the lower inner cover can be designed in a conical shape, with the air inlet located at the bottom of the cone (not shown in the figure). This allows liquid in the recessed portion to still flow into the storage cavity through the gas flow channel, enhancing the possibility of liquid backflow and preventing liquid waste.

[0034] Furthermore, such as Figures 2-5 and Figures 8-9As shown, the outer cover 20 is provided with a sliding window 201, and the through hole group 220 is located at the sliding window, that is, the liquid outlet 2301 and the second through hole 223 are also located at the sliding window. The bottle cap assembly 2 is provided with a sliding cover 21 corresponding to the sliding window. The sliding cover is located between the outer cover 20 and the upper inner cover 22, and can slide on the sliding window to open or close the sliding window. When the sliding window is opened, the liquid outlet and the second through hole are exposed, so that gas and liquid can flow. When the sliding window is closed, the liquid outlet and the second through hole are blocked. At this time, a relatively sealed space is formed inside the bottle cap assembly to prevent dust and other impurities from falling into the bottle cap assembly through the liquid outlet or the second through hole. In order to facilitate the sliding of the sliding cover, a stroke block 204 is also provided inside the outer cover. When the side of the sliding window contacts the side of the stroke plate 205, it indicates that the sliding cover is fully open or fully closed. Therefore, the distance between the sides of the stroke plate 205 is the sliding stroke of the sliding cover. To prevent the sliding cap from slipping off, the sliding cap 21 is provided with a smooth surface 210, the area of ​​which is larger than the area of ​​the sliding window. The smooth surface is also provided with a raised surface 211. When the raised surface is on the left side of the sliding window, it indicates that the cap assembly is closed. When the raised surface slides to the right side of the sliding window, it indicates that the cap assembly is open, and the liquid can be poured out. Corresponding open and closed marks can also be set on the outer cap to facilitate the sliding of the cap. The cap assembly can be opened or closed with one hand, making the operation more convenient. It also prevents insects and dust.

[0035] Furthermore, such as Figures 3-8As shown, the lower inner wall of the outer cap 20 is provided with an internal thread 200, which connects the cap assembly 2 to the bottle body 1. An inner step 202 is formed above the internal thread, and a sealing ring 3 is provided at the inner step to improve the sealing performance when the cap assembly is connected to the bottle body. The lower inner cap 23 is provided with an outer flange 232 corresponding to the inner step. When the lower inner cap is connected to the outer cap, the outer flange is placed between the sealing ring and the inner step. At the same time, in order to prevent the lower inner cap and the outer cap from sliding relative to each other when the outer cap is rotated, multiple sets of positioning blocks 203 are provided on the inner step 202, and positioning grooves 233 are provided on the outer flange corresponding to the positioning blocks. When the lower inner cap is connected to the outer cap, the positioning blocks are placed in the positioning grooves, and the lower inner cap and the outer cap are kept rotating synchronously when the outer cap is rotated. In order to ensure that the inner cover and the outer cover rotate synchronously, a cross post 206 is provided inside the outer cover, and a cross hole 221 is provided at the upper end of the inner cover corresponding to the cross post. When the inner and outer covers are connected, the cross post is inserted into the cross hole to ensure that the inner cover rotates synchronously with the outer cover. Meanwhile, a locking post 234 is provided at the upper end of the lower inner cover 23, and a lower inner cover through hole 235 is provided on the locking post. A corresponding locking hole 207 is provided on the cross post of the outer cover. After aligning the cross post with the cross hole, the upper inner cover is connected to the outer cover, and the lower inner cover is inserted into the outer cover, so that the outer flange is placed at the inner step. At this time, the locking post and the cross post are in the same axial direction, and the locking hole 207 is aligned with the lower inner cover through hole 235. The locking screw 24 is placed in the locking post, passes through the lower inner cover through hole, and locks with the locking hole. This achieves the connection and locking of the outer cover with the lower inner cover and the upper inner cover. At this time, when the outer cover rotates, the lower inner cover and the upper inner cover rotate synchronously with the outer cover, and the connection is more stable.

[0036] It should be understood that this application has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this application. Furthermore, based on the teachings of this application, these features and embodiments can be modified to suit specific circumstances and materials without departing from the spirit and scope of this application. Therefore, this application is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this application.

Claims

1. A liquid bottle cap assembly with a sliding dustproof cover, comprising an outer cap, a lower inner cap arranged in the outer cap, and an upper inner cap arranged between the outer cap and the lower inner cap, characterized in that: The lower inner cover, the upper inner cover and the outer cover are connected through the locking structure, so that the lower inner cover and the upper inner cover rotate synchronously with the outer cover, the lower inner cover is provided with independent liquid flow channel and gas flow channel, and the liquid flow channel and the gas flow channel are arranged on the two sides of the lower inner cover.

2. The liquid bottle cap assembly of claim 1, wherein: The length of the gas flow channel is greater than that of the liquid flow channel, the liquid flow channel comprises a liquid inlet and a liquid outlet arranged above the liquid inlet, the gas flow channel comprises a gas inlet and a gas outlet arranged below the gas inlet, and the liquid inlet and the gas inlet are arranged on the same horizontal plane.

3. The liquid bottle cap assembly of claim 2, wherein: The upper inner cover is provided with a group of through holes, the group of through holes comprises a first through hole and a plurality of second through holes, the liquid flow channel is arranged in the first through hole, a flow guide cavity is left between the inner wall of the upper inner cover and the upper end surface of the lower inner cover, and the second through hole communicates with the gas inlet through the flow guide cavity and conducts gas flow.

4. The liquid bottle cap assembly of claim 3, wherein: The second through hole is arranged around the first through hole, and the second through hole and the second through hole are arranged at the lower recess.

5. The liquid bottle cap assembly of claim 1, wherein: The outer cover is provided with a sliding window, the sliding cover is arranged between the upper inner cover and the outer cover and can move in the sliding window to open or close the sliding window, when the sliding window is closed, the liquid flow channel and the gas flow channel are closed, and when the sliding window is opened, the liquid flow channel and the gas flow channel are opened.

6. The liquid bottle cap assembly of claim 5, wherein: The outer cover is provided with a travel block, the sliding cover cannot continue to slide when the sliding cover slides and contacts the side surface of the travel block, the area of the sliding cover is greater than that of the sliding window, the sliding cover is provided with an upper convex surface, and the upper convex surface contacts the side surface of the sliding window when the sliding cover slides.

7. The liquid bottle cap assembly according to any one of claims 1-6, wherein: The locking structure comprises a locking column arranged on the lower inner cover, the locking column is provided with a lower inner cover through hole, the locking structure further comprises a cross hole arranged in the upper inner cover and a cross column arranged in the outer cover, the cross hole is inserted into the cross column to make the upper inner cover and the outer cover move synchronously, the cross column is provided with a locking hole, and the locking structure further comprises a locking screw penetrating through the lower inner cover through hole and connected with the locking hole, and the end of the locking screw is arranged in the locking column.

8. The liquid bottle cap assembly of claim 7, wherein: The outer cover is provided with a step, the outer cover is provided with an outer flange corresponding to the step, the outer flange is provided with a positioning groove, the step is provided with a positioning block corresponding to the positioning groove, and the positioning block is arranged in the positioning groove when the lower inner cover is connected with the outer cover, so that the lower inner cover and the outer cover rotate synchronously when the outer cover rotates.

9. A container comprising a bottle body provided with an opening only at an upper end, a liquid storage cavity being formed in the bottle body, characterized in that: The opening is connected with the liquid bottle cap assembly with a sliding dustproof cover as claimed in any one of claims 1-8, and the bottle cap assembly and the bottle body are detachably connected.

10. The container of claim 9, wherein: The bottle body and the bottle cap assembly are detachably connected through threads, and the bottle body and the bottle cap assembly are provided with a sealing ring at the connection position.

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