Inner flow guide double-layer bottle cap

Abstract

The utility model discloses an inner diversion double-layer bottle cap which comprises an outer cap, the outer cap is provided with an assembly cavity and a liquid outlet, the liquid outlet of the outer cap is provided with a diversion pipe, the portion, protruding out of the top face of the outer cap, of the diversion pipe extends into the assembly cavity from the liquid outlet, the diversion pipe is provided with a diversion channel, and the overflowing area of the diversion channel is gradually increased from top to bottom. The flow guide pipe is elastic so that the flow guide channel can expand and contract in the radial direction of the outer cover. The liquid outlet is provided with the flow guide pipe which partially protrudes out of the top face of the outer cover and partially extends into the assembly cavity from the liquid outlet, the flow guide pipe is provided with the flow guide channel, the flow area of the flow guide channel is gradually increased from top to bottom, and the flow guide channel can expand and shrink in the radial direction of the outer cover, so that the flow guide pipe can shrink to guide products in the flow guide channel back to the bottle body after external force is removed. Meanwhile, due to the fact that the part, protruding out of the top face of the outer cover, of the flow guide pipe extends into the assembly cavity from the liquid outlet, the flow guide pipe has the good flow guide effect, and extrusion and backflow of the product are facilitated.

Description

Technical Field

[0001] This utility model relates to bottle caps, and more particularly to double-layered bottle caps with internal flow guidance. Background Technology

[0002] To fit the bottle shape, double-layered caps mainly consist of an outer cap and an inner cap. The inner cap is located inside the outer cap, the outer cap matches the bottle shape, and the inner cap matches the bottle opening. Existing double-layered caps are commonly used on bottles of daily chemical products, such as shampoos, shower gels, and lotions. Because the products inside the bottle have a certain degree of fluidity, when the product is squeezed out through the bottle opening, it is easy to leave residue at the bottle opening, causing contamination. Utility Model Content

[0003] The purpose of this invention is to provide an internally guided double-layer bottle cap to solve the problem that when existing double-layer bottle caps are applied to the bottle body of daily chemical products, the product inside the bottle is easily left at the bottle opening after being squeezed out.

[0004] This utility model is achieved through the following technical solution:

[0005] A double-layered bottle cap with internal flow guidance includes a cap body and a cap. The cap body has an outer cover, which has an assembly cavity and a liquid outlet. The assembly cavity opens downwards, and the liquid outlet is located on the top of the outer cover and communicates with the assembly cavity. The outer cover has a flow guide tube on the liquid outlet. A portion of the flow guide tube protrudes from the top surface of the outer cover and extends into the assembly cavity from the liquid outlet. The flow guide tube has a flow channel with upper and lower openings and communicates with the assembly cavity. The flow area of ​​the flow channel gradually increases from top to bottom. The flow guide tube is elastic, allowing the flow channel to expand and contract radially on the outer cover. The cap is located on the top surface of the outer cover and can rotate relative to the outer cover to open and close the upper opening of the flow channel.

[0006] Furthermore, the guide tube has an upper guide ring and a lower guide ring. The upper guide ring extends upward from the liquid outlet, and the lower guide ring extends downward from the upper end of the upper guide ring and extends into the assembly cavity from the liquid outlet. The upper guide ring and the lower guide ring are arranged radially spaced on the outer cover, and the lower guide ring has the guide channel.

[0007] Furthermore, the portion of the lower guide ring extending into the assembly cavity occupies 1 / 9 to 1 / 7 of the height of the outer cover.

[0008] Furthermore, the portion of the upper guide ring protruding from the top surface of the outer cover occupies 3 / 5 to 3 / 4 of the height of the cap.

[0009] Furthermore, the upper guide ring and the lower guide ring gradually transition to form a transition arc.

[0010] Furthermore, the cap has a sealing rod that is inserted into the flow channel.

[0011] Furthermore, the flow guide tube is integrally formed on the outer cover, and the flow guide tube is made of silicone.

[0012] Furthermore, the cover also has an inner cover, which is disposed in the assembly cavity and extends downward from the top of the assembly cavity. The inner cover extends circumferentially around the outer cover and is spaced apart from the outer cover. The inner cover has a slot that extends vertically and opens downward. A reinforcing rib is provided between the outer cover and the inner cover. The reinforcing rib and the slot are staggered in the circumferential direction of the inner cover.

[0013] Furthermore, the cover also has an inner plug ring, which is disposed inside the inner cover and extends downward from the top of the assembly cavity. The inner plug extends circumferentially around the inner cover and is spaced apart from the inner cover.

[0014] The advantage of this technical solution is that by configuring a guide tube that protrudes from the top surface of the outer cap and extends into the assembly cavity from the liquid outlet, the guide tube has a flow area that gradually increases from top to bottom and can expand and contract radially in the outer cap. Therefore, the guide tube can contract after the external force is removed, guiding the product in the guide channel back to the bottle body, avoiding product residue at the upper opening of the guide channel from contaminating the bottle cap. At the same time, since the part of the guide tube protrudes from the top surface of the outer cap and extends into the assembly cavity from the liquid outlet, the guide tube has a good guiding effect, which facilitates product extrusion and return. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying 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.

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0017] Figure 1 The three-dimensional internal flow-guiding double-layer bottle cap disclosed in the embodiment is Figure 1 ;

[0018] Figure 2 The three-dimensional internal flow-guiding double-layer bottle cap disclosed in the embodiment is Figure 2 ;

[0019] Figure 3 This is a cross-sectional view of the internally guided double-layer bottle cap disclosed in the embodiment;

[0020] Figure 4 yes Figure 3A magnified view of a section at point A in the middle;

[0021] Figure 5 This is a perspective view of the cover in the embodiment;

[0022] Figure 6 This is a cross-sectional view of the cover in the embodiment;

[0023] Figure 7 yes Figure 6 A magnified view of a section at point B in the middle. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example: Figure 1-7 As shown, the inner-flow double-layer bottle cap includes a cap body 1 and a cap 2. The cap body 1 has an outer cover 100, which has an assembly cavity 101 and a liquid outlet 102. The assembly cavity 101 opens downwards, and the liquid outlet 102 is located on the top of the outer cover 100 and communicates with the assembly cavity 101. The outer cover 100 has an integrally formed flow guide tube 103 on the liquid outlet 102. Part of the flow guide tube 103 protrudes from the top surface of the outer cover 100 and extends into the assembly cavity 101 from the liquid outlet 102. The flow guide tube 103 has a flow channel 104 with upper and lower openings and communicates with the assembly cavity 101. The flow area of ​​the flow channel 104 gradually increases from top to bottom. The flow guide tube 103 is elastic, allowing the flow channel 104 to expand and contract radially on the outer cover 100. The cap 2 is located on the top surface of the outer cover 100 and can rotate relative to the outer cover 100 to open and close the upper opening of the flow channel 104.

[0026] When the internal flow double-layer bottle cap is used in conjunction with the bottle body, the flow channel 104 expands and extrudes the product when the user presses the bottle body to squeeze out the product. When the user releases the external force of pressing the bottle body, the flow channel 104 narrows, causing the product in the flow channel 104 to flow downwards and back, avoiding product residue at the upper opening of the flow channel 104 from contaminating the bottle cap.

[0027] In summary, this embodiment provides an internally guided double-layer bottle cap to solve the problem that when existing double-layer bottle caps are applied to the bottle body of daily chemical products, the product inside the bottle is easily left at the bottle opening after being squeezed out. This is mainly achieved by configuring a guide tube 103 on the liquid outlet 102, which protrudes from the top surface of the outer cap 100 and extends into the assembly cavity 101 from the liquid outlet 102. The guide tube 103 has a guide channel 104 with a flow area that gradually increases from top to bottom and can expand and contract radially in the outer cap 100. Therefore, the guide tube 103 can contract after the external force is removed, guiding the product in the guide channel 104 back to the bottle body, avoiding product residue at the upper opening of the guide channel 104 and contaminating the bottle cap. At the same time, since the part of the guide tube 103 protrudes from the top surface of the outer cap 100 and extends into the assembly cavity 101 from the liquid outlet 102, the guide tube 103 has a good guiding effect, which facilitates product extrusion and return.

[0028] In this embodiment of the invention, the guide tube 103 has an upper guide ring 105 and a lower guide ring 106. The upper guide ring 105 extends upward from the liquid outlet 102, and the lower guide ring 106 extends downward from the upper end of the upper guide ring 105 and extends into the assembly cavity 101 from the liquid outlet 102. The lower guide ring 106 has a flow guiding channel 104. The upper guide ring 105 and the lower guide ring 106 are radially spaced apart on the outer cover 100. By configuring the guide tube 103 with an upper guide ring 105 and a lower guide ring 106, the upper guide ring 105 extends upward from the liquid outlet 102, and the lower guide ring 106 extends downward from the upper end of the upper guide ring 105 and is spaced apart from the upper guide ring 105, thus ensuring that the flow guiding channel 104 has a good flow guiding effect and smooth expansion and contraction.

[0029] In this embodiment of the invention, the portion of the lower guide ring 106 extending into the assembly cavity 101 occupies 1 / 9 to 1 / 7 of the height of the outer cap 100. This arrangement, by configuring the lower guide ring 106 such that the portion extending into the assembly cavity 101 occupies 1 / 9 to 1 / 7 of the height of the outer cap 100, facilitates the lower guide ring 106 in guiding the product within the flow channel 104 back into the bottle body.

[0030] In this embodiment of the invention, the portion of the upper guide ring 105 protruding from the top surface of the outer cover 100 occupies 3 / 5 to 3 / 4 of the height of the cap 2. This arrangement, by configuring the upper guide ring 105 such that the portion protruding from the top surface of the outer cover 100 occupies 3 / 5 to 3 / 4 of the height of the cap 2, sufficiently lengthens the flow channel 104, giving the flow channel 104 a good flow guiding effect, facilitating product extrusion and recirculation.

[0031] In this embodiment of the invention, the upper guide ring 105 and the lower guide ring 106 gradually transition to form a transition arc 107. This arrangement, by configuring the upper guide ring 105 and the lower guide ring 106 to gradually transition to form the transition arc 107, avoids stress concentration and gives the guide tube 103 good structural strength.

[0032] In this embodiment of the invention, the cap 2 has a sealing rod 201 that is inserted into the flow channel 104. This arrangement, by configuring the sealing rod 201 into the flow channel 104 on the cap 2, ensures good sealing when the cap 2 is closed on the outer cover 100.

[0033] In this embodiment of the invention, the guide tube 103 is made of silicone. More preferably, the outer cover 100 is also made of silicone. This arrangement, by configuring the guide tube 103 to be made of silicone, provides excellent expansion and contraction capabilities for the guide channel 104.

[0034] In this embodiment of the invention, the cap 1 further includes an inner cap 108, which is disposed within the assembly cavity 101 and extends downward from the top of the assembly cavity 101. The inner cap 108 extends circumferentially around the outer cap 100 and is spaced apart from the outer cap 100. The inner cap 108 has a slot 109 extending vertically and opening downward. A reinforcing rib 110 is provided between the outer cap 100 and the inner cap 108. The reinforcing rib 110 and the slot 109 are staggered in the circumferential direction of the inner cap 108. Correspondingly, the bottle body that cooperates with the inner flow double-layer bottle cap has an insert at the bottle mouth that engages with the slot 109, so that the inner flow double-layer bottle cap can be fixed to the bottle body. The above configuration enhances the structural strength of the inner cover 108 by providing a reinforcing rib 110 between the inner cover 108 and the outer cover 100, thus compensating for the structural strength weakened by the slot 109 in the inner cover 108. At the same time, the reinforcing rib 110 and the slot 109 are arranged to be staggered in the circumferential direction of the inner cover 108 to avoid the reinforcing rib 110 interfering with the slot 109.

[0035] In this embodiment of the invention, the cap 1 further includes an inner stopper ring 111. The inner stopper ring 111 is located inside the inner cap 108 and extends downward from the top of the assembly cavity 101. The inner stopper ring 111 extends circumferentially around the inner cap 108 and is spaced apart from the inner cap 108. When this inner-flow double-layer bottle cap is used in conjunction with the bottle body, the inner stopper ring 111 is inserted into the bottle opening. The above arrangement, by configuring the inner stopper ring 111, which extends circumferentially around the inner cap 108 and is spaced apart from the inner cap 108, ensures a stable connection between the inner-flow double-layer bottle cap and the bottle body.

[0036] It should be understood that the terms "first," "second," etc., are used in this utility model to describe various information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this utility model, "first" information can also be referred to as "second" information, and similarly, "second" information can also be referred to as "first" information. In addition, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0037] The above description provides one or more embodiments in conjunction with specific content, and does not imply that the specific implementation of this utility model is limited to these descriptions. Any methods or structures that are similar to or identical to those of this utility model, or any technical deductions or substitutions made based on the concept of this utility model, should be considered as protected by this utility model.

Claims

1. An internally guided double-layer bottle cap, comprising a cap body and a cap, wherein the cap body has an outer cap, the outer cap has an assembly cavity and a liquid outlet, the assembly cavity opening downwards, and the liquid outlet is located at the top of the outer cap and communicates with the assembly cavity, characterized in that, The outer cover is provided with a guide tube on the liquid outlet. The guide tube protrudes from the top surface of the outer cover and extends into the assembly cavity from the liquid outlet. The guide tube has a guide channel with upper and lower openings and communicates with the assembly cavity. The flow area of ​​the guide channel gradually increases from top to bottom. The guide tube is elastic, allowing the guide channel to expand and contract radially on the outer cover. The cap is provided on the top surface of the outer cover and can rotate relative to the outer cover to open and close the upper opening of the guide channel.

2. The double-layered bottle cap with internal flow guidance according to claim 1, characterized in that, The guide tube has an upper guide ring and a lower guide ring. The upper guide ring extends upward from the liquid outlet, and the lower guide ring extends downward from the upper end of the upper guide ring and extends into the assembly cavity from the liquid outlet. The upper guide ring and the lower guide ring are arranged radially spaced on the outer cover, and the lower guide ring has the guide channel.

3. The double-layered bottle cap with internal flow guidance according to claim 2, characterized in that, The portion of the lower guide ring extending into the assembly cavity occupies 1 / 9 to 1 / 7 of the height of the outer cover.

4. The double-layered bottle cap with internal flow guidance according to claim 2, characterized in that, The portion of the upper guide ring that protrudes from the top surface of the outer cover occupies 3 / 5 to 3 / 4 of the height of the cap.

5. The double-layered bottle cap with internal flow guidance according to claim 2, characterized in that, The upper guide ring and the lower guide ring gradually transition to form a transition arc.

6. The double-layered bottle cap with internal flow guidance according to claim 1, characterized in that, The cap has a sealing rod that is inserted into the flow channel.

7. The double-layered bottle cap with internal flow guidance according to claim 1, characterized in that, The flow guide tube is integrally mounted on the outer cover and is made of silicone.

8. The double-layered bottle cap with internal flow guidance according to claim 1, characterized in that, The cover also has an inner cover, which is disposed in the assembly cavity and extends downward from the top of the assembly cavity. The inner cover extends circumferentially around the outer cover and is spaced apart from the outer cover. The inner cover has a slot that extends vertically and opens downward. A reinforcing rib is provided between the outer cover and the inner cover. The reinforcing rib and the slot are staggered in the circumferential direction of the inner cover.

9. The double-layered bottle cap with internal flow guidance according to claim 8, characterized in that, The cover also has an inner plug ring, which is located inside the inner cover and extends downward from the top of the assembly cavity. The inner plug extends circumferentially around the inner cover and is spaced apart from the inner cover.

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