Rotary sealing bottle cap

Abstract

The utility model provides a rotary sealing bottle cap which comprises a cap and an inner cap, and the cap and the inner cap are matched through a sliding groove and a clamping block to achieve opening or closing of a liquid outlet hole. The inner cover comprises a first step, a second step, a third step and a second inner cover ring wall, and the third step is connected with the bottom of the second inner cover ring wall. The first step is provided with a liquid inlet hole and a sealing plug. The periphery of the top of the second step extends upwards to form an inner cap first ring wall, the inner cap first ring wall surrounds the outer side of the cap inner ring wall, a liquid inlet cavity is defined by the inner cap first ring wall and the cap inner ring wall, and a backflow hole is formed in the bottom of the liquid inlet cavity and used for enabling a solution to flow back into the container bottle body through the backflow hole. The outer side of the second inner cover ring wall is provided with a sliding groove used for sliding of the clamping blocks, the sliding groove is spirally arranged along the outer wall face of the second inner cover ring wall and provided with a plurality of check blocks, the check blocks are arranged at intervals and used for adjusting the unscrewing gear of the cover cap, and the check blocks limit the clamping blocks, so that multi-gear adjustment is achieved, and the liquid outlet amount is controlled.

Description

Technical Field

[0001] The utility model relates to the technical field of bottle caps, in particular to a screw-sealed bottle cap. Background Art

[0002] The bottle cap of a container is a component used to seal the bottle mouth. The bottle cap is used to seal the bottle. According to different functions, there are different shapes and different operation methods of bottle caps. Bottle cap sealing methods are generally divided into flip-up type, pry-up type, press-on type, twist-off type, etc. For liquid or semi-liquid solutions, small-diameter twist-off sealing caps are usually used. Such sealing caps on the market, such as the one with announcement number CN 220164619 The lid is capped on the outer wall of the bottle and has a bottom surface which is fixed to the lid on the lip, and the lid is capped on the outer wall of the bottle and has a bottom surface which is fixed to the lid on the lip. The problem is that the amount of liquid outflow cannot be controlled, and after the liquid enters the liquid inlet, the solution cannot flow back, which easily leads to leakage and the problem that bacteria are easily grown in the solution cavity. Utility Model Content

[0003] The purpose of the utility model is to solve the shortcomings of the prior art and to provide a screw-on bottle cap.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A screw-on bottle cap comprises a cap and an inner cap, wherein the cap and the inner cap are sealed by rotating together.

[0006] The top of the cap is provided with a liquid outlet hole, and the inner wall of the cap top is located on the outer periphery of the liquid outlet hole and extends downwardly from the inner wall of the cap; a clamping block is provided on the inner circumferential wall of the cap;

[0007] The inner cover is arranged in a stepped shape, including a first step, a second step and a third step with increasing diameters in sequence, the outer side of the third step is surrounded by the second ring wall of the inner cover, and the third step is connected to the bottom of the second ring wall of the inner cover; the first step is provided with a liquid inlet hole and a sealing plug, and the liquid inlet hole is arranged around the outer circumference of the sealing plug; the first ring wall of the inner cover extends upward on the circumference of the top of the second step, and the first ring wall of the inner cover surrounds the outer side of the inner ring wall of the cap and forms a liquid inlet cavity connected to the liquid inlet hole; a reflux hole is provided at the bottom of the liquid inlet cavity; the outer side of the second ring wall of the inner cover is provided with a sliding groove for the sliding of the card block, and the sliding groove is spirally arranged along the outer wall surface of the second ring wall of the inner cover and is provided with a plurality of blocks, and the blocks are arranged at intervals for adjusting the gear position of the cap to be unscrewed.

[0008] Furthermore, the block divides the slide into a sealing gear, a first gear, a second gear, a third gear and a fourth gear, and the sealing plug adjusts the distance from the liquid outlet according to the size of the gear.

[0009] Furthermore, an annular sealing rib and an annular sealing wall are provided on the inner wall of the cap at the outer periphery of the liquid outlet; the sealing plug includes a sealing mouth and a sealing platform; the sealing mouth movably blocks the liquid outlet; the annular sealing rib movably abuts against the upper end face of the sealing platform; and the annular sealing wall surrounds the circumference of the sealing platform.

[0010] Furthermore, the sealing nozzle is in a "hemispherical" shape, and a liquid guiding surface is provided on its surface.

[0011] Furthermore, a plurality of reinforcing ribs are provided between the third step and the second annular wall of the inner cover, and two sides of the reinforcing ribs are respectively connected to the third step and the second annular wall of the inner cover.

[0012] Furthermore, an anti-backward convex piece is provided at the bottom of the inner wall of the third step 23, and the anti-backward convex piece is inclined in the same direction.

[0013] Furthermore, an introduction groove is provided on the outer wall of the second ring wall of the inner cover above the sliding groove, and an introduction slope is provided at the bottom of the introduction groove.

[0014] Furthermore, a rib is provided at the bottom of the outer wall of the inner ring wall of the cap, and the rib is closely attached to the inner wall of the first ring wall of the inner cover.

[0015] The utility model has the following beneficial effects:

[0016] 1. The cover cap and the inner cover cooperate with the slide and the block to realize the opening or closing of the liquid outlet. There are multiple blocks in the slide. The blocks limit the blocks to achieve multi-level adjustment and control the liquid output.

[0017] 2. A liquid inlet cavity is provided, and a reflux hole is provided at the bottom of the liquid inlet cavity for the solution to flow back into the container bottle through the reflux hole.

[0018] 3. There are annular sealing ribs and annular sealing walls around the liquid outlet, and the sealing plug cooperates with them to form a triple seal to ensure that the solution will not leak. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of the overall structure of an embodiment of the present utility model.

[0020] Figure 2 This is an exploded view of the overall structure of an embodiment of the present utility model.

[0021] Figure 3 This is a structural stereogram of the inner cover according to an embodiment of the present invention.

[0022] Figure 4 This is a side exploded sectional view of the overall structure of an embodiment of the present utility model.

[0023] Figure 5 This is a side sectional view of the sealing block according to an embodiment of the present invention.

[0024] Figure 6 This is a side sectional view of the first gear of an embodiment of the present utility model.

[0025] Figure 7 This is a side sectional view of the second gear of an embodiment of the present utility model.

[0026] Figure 8 This is a side sectional view of the third gear of an embodiment of the present utility model.

[0027] Figure 9 This is a side sectional view of the fourth gear of an embodiment of the present utility model.

[0028] Reference numerals in the figures:

[0029] Cover cap 1, liquid outlet 11, cover cap inner ring wall 12, clamping block 13, annular sealing rib 14, annular sealing wall 15, rib 16.

[0030] Inner cover 2.

[0031] The first step 21 , the liquid inlet hole 211 , the sealing plug 212 , the sealing mouth 213 , the sealing platform 214 , and the liquid guide surface 216 .

[0032] The second step 22 , the first annular wall 221 of the inner cover, the liquid inlet cavity 222 , and the reflux hole 223 .

[0033] The third step 23 , the reinforcing rib 231 , and the anti-backward protrusion 232 .

[0034] The second ring wall 24 of the inner cover, the sliding groove 241, the stopper 242, the sealing gear 243, the first gear 244, the second gear 245, the third gear 246, the introduction groove 247, the introduction inclined surface 248, and the fourth gear 249. DETAILED DESCRIPTION

[0035] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0037] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0038] like Figures 1-9 The following figure shows a screw-on bottle cap, which is installed on a container for liquids or liquid solutions to seal or open the container. It includes a cap 1 and an inner cap 2. The cap 1 is completely wrapped around the inner cap 2, and the cap 1 and the inner cap 2 are sealed by rotating together. The inner cap 2 is internally threaded and screwed onto the container.

[0039] The top of the cap 1 is provided with a liquid outlet 11 connected to the outside, and the inner cover 2 is arranged in a stepped shape, including a first step 21, a second step 22 and a third step 23 with increasing diameters from top to bottom. The outer side of the third step 23 is surrounded by an inner cover second ring wall 24, and the third step 23 is connected to the bottom of the inner cover second ring wall 24.

[0040] A liquid inlet hole 211 and a sealing plug 212 are provided on the upper end surface of the first step 21 . The liquid inlet hole 211 is provided around the outer periphery of the sealing plug 212 .

[0041] A block 13 is provided on the inner circumferential wall of the cap 1. A chute 241 for the block 13 to slide is provided on the outer side of the second annular wall 24 of the inner cover, corresponding to the position of the block 13. The chute 241 is spirally arranged along the outer wall surface of the second annular wall 24 of the inner cover. The block 13 slides in the chute 241, thereby rotating the cap 1 upward or downward. Specifically, when the cap 1 rotates counterclockwise, the block 13 moves upward along the chute 241. At this time, the liquid outlet 11 gradually moves away from the sealing plug 212, so that the liquid inlet 211 is connected to the liquid outlet 11, and liquid can also be discharged outward from the liquid outlet 11. On the contrary, when the cap 1 rotates clockwise, the block 13 moves downward along the slide groove 241. At this time, the liquid outlet 11 is sheathed on the outside of the sealing plug 212 and fits tightly with the sealing plug 212 to block the liquid outlet 11 so that the liquid cannot be discharged outward from the liquid outlet 11.

[0042] like Figure 5-Figure 9 As shown, in order to further improve the sealing between the sealing plug 212 and the liquid outlet 11. An annular sealing rib 14 is provided on the inner wall of the cap 1 at the outer periphery of the liquid outlet 11, and an annular sealing wall 15 is provided on the periphery of the annular sealing rib 14. The sealing plug 212 includes a sealing mouth 213 and a sealing platform 214. The outer diameter of the sealing mouth 213 is equal to the inner diameter of the liquid outlet 11. When the sealing mouth 213 is pushed into the liquid outlet 11, the sealing mouth 213 realizes the first sealing of the liquid outlet 11. At this time, the annular sealing rib 14 abuts against the upper end face of the sealing platform 214, and the annular sealing rib 14 cooperates with the sealing platform 214 to realize the second sealing of the liquid outlet 11. At the same time, the annular sealing wall 15 is tightly surrounded by the circumference of the sealing platform 214. The cooperation between the annular sealing wall 15 and the sealing platform 214 realizes the third seal of the liquid outlet 11. The triple seal ensures that when the cap 1 and the inner cover 2 are tightened, the solution can be sealed in the container, and at the same time ensures that the solution in the container is isolated from the external atmosphere, reducing dust pollution and bacterial growth.

[0043] Furthermore, to help the liquid concentrate during discharge and reduce bifurcation and splashing, the sealing nozzle 213 is hemispherical and has a liquid guide surface 216 on its surface. Due to the tension of the solution, the solution flows along the surface of the liquid guide surface 216 and converges with each other. When extruded, it condenses into droplets or streamlines, which is less likely to cause bifurcation and splashing, thereby reducing waste and effectively keeping the surrounding environment clean.

[0044] Furthermore, in order to allow the user to continuously output the solution during use without interruption, a cap inner ring wall 12 extends downward from the inner wall of the top of the cap 1, and the cap inner ring wall 12 is located on the outer periphery of the annular sealing wall 15. Correspondingly, an inner cover first ring wall 221 that cooperates with the cap inner ring wall 12 extends upward from the circumference of the top of the second step 22. The inner cover first ring wall 221 surrounds the outer side of the cap inner ring wall 12 and forms a liquid inlet cavity 222 that is connected to the liquid inlet hole 211. A reflux hole 223 is provided at the bottom of the liquid inlet cavity 222. The liquid inlet hole 211 is arranged in an arc shape to facilitate the rapid delivery of solution to the liquid inlet cavity 222. When the user inverts the container to squeeze out the solution, a large amount of solution quickly enters the liquid inlet cavity 222 from the liquid inlet hole 21, filling the liquid inlet cavity 222. At the same time, the air originally stored in the liquid inlet cavity 222 enters the container through the reflux hole 223, preventing the container from deflation. At this time, because the liquid inlet cavity 222 is full of solution, the solution can be continuously squeezed out from the liquid outlet hole 11, without being intermittently squeezed out due to the presence of air in the liquid inlet cavity 222, providing a better user experience. Conversely, when the user finishes taking the liquid, the solution buffered in the liquid inlet cavity 222 can also flow back into the container through the reflux hole 233.

[0045] In order to further improve the sealing performance of the liquid inlet cavity 222 , ribs 16 are provided on the outer wall of the annular sealing wall 15 . The ribs 16 are arranged in an annular shape to seal the liquid inlet cavity 222 .

[0046] Furthermore, in order to enable the user to control the amount of liquid discharged from the liquid outlet 11, a plurality of blocks 242 for limiting the block 13 are provided on the slide groove 241. The blocks 242 are arranged at intervals to adjust the gear position of the cap 1 to be unscrewed.

[0047] The block 242 includes but is not limited to three or more. Specifically, in this embodiment, there are four blocks 242. The block 242 divides the chute 241 into a sealing gear 243, a first gear 244, a second gear 245, a third gear 246 and a fourth gear 249 from left to right, and the sealing plug 212 adjusts the distance from the liquid outlet 11 according to the size of the gear. Specifically, when the block 13 stays in the sealing gear 243, the sealing plug 212 seals and blocks the liquid outlet 11, and the solution cannot flow out of the liquid outlet 11. When the block 13 slides to the right along the chute 241 to the first gear 244, the sealing plug 212 is slightly separated from the liquid outlet 11, and the liquid outlet 11 is opened and a small amount of liquid can be squeezed out. As the block 13 slides to the second gear 245 , the third gear 246 and the fourth gear 249 respectively, the distance between the sealing plug 212 and the liquid outlet 11 increases, thereby adjusting the liquid outlet volume.

[0048] Furthermore, in order to facilitate the installation of the cap 1 and the inner cover 2 so that the block 13 can quickly and smoothly enter the slide groove 241, an introduction groove 247 is provided on the outer wall of the second ring wall 24 of the inner cover above the slide groove 241. Specifically, the introduction groove 247 is located directly above the sealing block 243, and the introduction groove 247 has an upper opening to facilitate the entry of the block 13.

[0049] Furthermore, in order to facilitate the block 13 to slide quickly and smoothly from the introduction groove 247 into the slide groove 241, an introduction slope 248 is provided at the bottom of the introduction groove 247. The upper end of the introduction slope 248 is connected to the inner wall of the introduction groove 247, and the lower end is connected to the top outer edge of the sealing block 243. When the block 13 slides downward in the introduction groove 247, the introduction slope 248 generates an outward thrust on the block 13, so that it can quickly be stuck in the sealing block 243 when it moves downward.

[0050] Furthermore, a plurality of reinforcing ribs 231 are provided between the third step 23 and the second annular wall 24 of the inner cover. The two sides of the reinforcing ribs 231 are respectively connected to the third step 23 and the second annular wall 24 of the inner cover, so as to strengthen the connection rigidity between the third step 23 and the second annular wall 24 of the inner cover.

[0051] Furthermore, the bottom of the inner wall of the third step 23 is provided with anti-backward tabs 232, spaced along the inner wall and tilted in a uniform direction. Specifically, the anti-backward tabs 232 are arranged like leaves, tilted toward their left side. When the inner lid 2 is tightened clockwise, the anti-backward tabs 232 provide a tactile vibration prompt. Conversely, when the inner lid 2 is twisted in the opposite direction, the anti-backward tabs 232 engage the step at the container's mouth, preventing the inner lid 2 from rotating backward, thereby preventing the inner lid 2 from loosening and causing solution leakage.

[0052] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features. Any technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning or limited experiments on the basis of existing technologies should be within the scope of protection determined by the claims.

Claims

1. A screw-on bottle cap, comprising a cap (1) and an inner cap (2), wherein the cap (1) and the inner cap (2) are sealed by rotating together, characterized in that: The top of the cap (1) is provided with a liquid outlet hole (11), and the top of the cap (1) is provided with a cap inner ring wall (12) extending downward from the inner wall of the outer periphery of the liquid outlet hole (11); a clamping block (13) is provided on the circumferential inner wall of the cap (1); The inner cover (2) is arranged in a stepped shape, comprising a first step (21), a second step (22) and a third step (23) with diameters increasing in sequence, the outer side of the third step (23) is surrounded by a second inner cover ring wall (24), and the third step (23) is connected to the bottom of the second inner cover ring wall (24); the first step (21) is provided with a liquid inlet hole (211) and a sealing plug (212), and the liquid inlet hole (211) is arranged around the outer circumference of the sealing plug (212); the inner cover first ring wall (221) is extended upward on the circumference of the top of the second step (22) The first annular wall (221) of the inner cover surrounds the outer side of the inner annular wall (12) of the cap and forms a liquid inlet cavity (222) connected to the liquid inlet hole (211); a reflux hole (223) is provided at the bottom of the liquid inlet cavity (222); a slide groove (241) for sliding the block (13) is provided on the outer side of the second annular wall (24) of the inner cover, the slide groove (241) is spirally arranged along the outer wall surface of the second annular wall (24) of the inner cover and is provided with a plurality of blocks (242); the blocks (242) are arranged at intervals and are used to adjust the gear position of the cap (1) when it is unscrewed.

2. The screw-on bottle cap according to claim 1, characterized in that: The block (242) divides the slide groove (241) into a sealing gear (243), a first gear (244), a second gear (245), a third gear (246) and a fourth gear (249), and the sealing plug (212) adjusts the distance from the liquid outlet (11) according to the size of the gear.

3. The screw-on bottle cap according to claim 1, characterized in that: An annular sealing rib (14) and an annular sealing wall (15) are provided on the inner wall of the cap (1) at the outer periphery of the liquid outlet hole (11); the sealing plug (212) comprises a sealing nozzle (213) and a sealing platform (214); the sealing nozzle (213) movably blocks the liquid outlet hole (11); the annular sealing rib (14) movably abuts against the upper end surface of the sealing platform (214); and the annular sealing wall (15) surrounds the circumference of the sealing platform (214).

4. The screw-on bottle cap according to claim 3, characterized in that: The sealing nozzle (213) is in a "hemispherical" shape, and a liquid guiding surface (216) is provided on its surface.

5. The screw-on bottle cap according to claim 1, characterized in that: A plurality of reinforcing ribs (231) are provided between the third step (23) and the second annular wall (24) of the inner cover, and two sides of the reinforcing ribs (231) are respectively connected to the third step (23) and the second annular wall (24) of the inner cover.

6. The screw-on bottle cap according to claim 1, characterized in that: The bottom of the inner wall of the third step (23) is provided with an anti-backward convex piece (232), and the anti-backward convex piece (232) is inclined in a uniform direction.

7. The screw-on bottle cap according to claim 1, characterized in that: An introduction groove (247) is provided on the outer wall of the second ring wall (24) of the inner cover above the slide groove (241), and an introduction inclined surface (248) is provided at the bottom of the introduction groove (247).

8. The screw-on bottle cap according to claim 1, characterized in that: A rib (16) is provided at the bottom of the outer wall of the inner ring wall (12) of the cap, and the rib (16) is in close contact with the inner wall of the first ring wall (221) of the inner cover.

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