Bottle opening structure with U-shaped one-way valve

Abstract

The utility model discloses a bottle opening structure with a U-shaped one-way valve. The bottle opening structure comprises the one-way valve sleeved on the inner wall of a bottle neck part and an inner plug sleeved on the inner wall of the one-way valve, the one-way valve is of a tubular structure with an upper opening and a lower opening, a shifting piece capable of being ejected upwards is arranged at the opening of the lower end of the one-way valve, and the shifting piece covers the bottle opening. A vertically-communicated channel is arranged in the middle of the inner plug, the inner plug extends into the one-way valve from an opening in the upper end of the one-way valve, a cavity allowing the shifting piece to move is formed between the inner plug and the shifting piece, one end of the channel is communicated with the outside, and the other end of the channel is communicated with the cavity. By arranging the one-way valve and the inner plug structure, when the material body is extruded, the material body ejects the one-way valve to flow out, the one-way valve automatically resets after extrusion, a bottle opening is blocked, the material body is prevented from flowing back, and then the external material body and the external environment are prevented from polluting the internal material body.

Description

Technical Field

[0001] The utility model belongs to the field of hose bottle mouths, and in particular relates to a bottle mouth structure with a U-shaped one-way valve. Background Art

[0002] The materials of the hose bottle mouth usually use plastic or rubber materials with certain flexibility and durability. These materials need to meet food safety standards and be compatible with the stored liquids or substances without causing contamination or deterioration. The design of the hose bottle mouth must take into account the convenience of use and sealing performance, including leak-proof design, rotation-opening or push-opening mechanisms to ensure that there will be no accidental leakage or contamination during use. At the same time, it can also be adapted to different types of hoses or nozzles according to the size and shape of the bottle mouth. In the production process, processes such as injection molding, extrusion molding or compression molding are included to ensure the production of high-quality bottle mouths that meet design requirements and ensure production efficiency and cost control.

[0003] In the modern hose bottle mouth design, the sealing performance of the hose bottle mouth is crucial for the preservation of liquids or substances. When using a hose container, the material in the tube is usually squeezed out, but this will cause the material that has not flowed out of the bottle mouth channel to flow back into the tube. This part of the material is exposed to the external environment and then mixed with the material in the tube, which will cause pollution to the internal material. Especially for some special material needs, it is necessary to prevent pollutants from entering the tube and prevent the extruded material from flowing back to pollute the internal material, which cannot achieve long-term "freshness lock". For some anti-backflow designs, the cost is relatively high and cannot be reused, and there are high costs and environmental problems in the production and processing process.

[0004] The Chinese patent with announcement number CN 216453835U discloses an embedded eye cream packaging hose, which improves the convenience of use by setting a slanted discharge port at the top, while avoiding waste of cosmetics and bacterial infection, but does not solve the problems of material reflux and sealing.

[0005] Therefore, in view of the problems existing in the prior art, it is urgently necessary to provide a bottle mouth structure with a U-shaped one-way valve to solve the problems existing in the prior art. Summary of the invention

[0006] In response to the problems in the related technology, the utility model proposes a bottle mouth structure with a U-shaped one-way valve. By arranging the one-way valve and the inner plug structure, when the material body is squeezed, the material body can push the one-way valve open and flow out to the outside. After squeezing, the one-way valve automatically resets to block the bottle mouth and prevent the material body from flowing back, thereby preventing the external material body and the external environment from contaminating the internal material body.

[0007] The utility model is achieved in this way:

[0008] A bottle mouth structure with a U-shaped one-way valve is arranged at the upper end of the bottle body, comprising a bottle neck portion with a middle portion penetrating therethrough, the bottle neck portion is connected to the inner cavity of the bottle body, and a bottle mouth is formed at the connection point; the inner wall of the bottle neck portion is sleeved with a one-way valve;

[0009] The one-way valve is a tubular structure with upper and lower openings, and a paddle that can be pushed upward is provided at the lower opening of the one-way valve, and the paddle covers the bottle mouth;

[0010] It also includes an inner plug, wherein a channel communicating with each other from top to bottom is provided in the middle of the inner plug, the inner plug extends from the opening at the upper end of the one-way valve into the one-way valve, and a cavity is formed between the inner plug and the paddle for the paddle to move, one end of the channel is communicated with the outside, and the other end is communicated with the cavity;

[0011] When the material in the bottle is squeezed, the paddle is pushed open from the bottle mouth and enters the inner plug, and flows out to the outside through the channel.

[0012] Preferably, an annular groove is provided on the inner wall of the bottleneck, and the side wall of the one-way valve protrudes toward the side where the annular groove is located, forming a first buckling member adapted to the annular groove;

[0013] The one-way valve is sleeved and fixed to the inner wall of the bottleneck portion through a first buckle piece.

[0014] Specifically, the first buckle member adopts an annular buckle rib structure, which has a simple structure and high sealing performance, that is, it can play the role of socketing and fixing the one-way valve and the bottleneck of the bottle, and can also effectively prevent pollutants from entering the packaging. At the same time, it can also ensure that the material inside the bottle is isolated from the outside, achieving the effect of long-term freshness, thereby meeting the needs of some special materials, and the overall structure can be reused, which not only improves the use efficiency, but also is more environmentally friendly.

[0015] Preferably, a recessed portion is formed at a position corresponding to the inner side wall of the one-way valve and the first buckle piece, and a second buckle piece adapted to the recessed portion is provided on the outer side wall of the inner plug;

[0016] The inner plug is fixed to the inner wall of the one-way valve by sleeve connection with a second buckle piece.

[0017] Specifically, the same annular buckle rib structure is used between the inner plug and the one-way valve, which not only realizes the sleeve fixing effect between the inner plug and the one-way valve, but also ensures the sealing so that the material can only flow out through the channel; at the same time, its overall structure can also be reused like the one-way valve, thereby improving the utilization efficiency.

[0018] Preferably, a connecting portion is provided between the paddle and the opening at the lower end of the one-way valve, and the paddle is integrally connected to the one-way valve via the connecting portion.

[0019] Specifically, through the connection part, the paddle can be pushed open when the material in the bottle is squeezed. After the squeezing is completed, the paddle will automatically return to its original position and continue to cover the bottle mouth. The connection part can ensure that the paddle will automatically return to its original position after being pushed open within a certain range.

[0020] Preferably, the upper opening of the one-way valve is flush with the upper opening of the bottleneck; an annular platform protrudes inward from the bottle mouth, and the paddle covers the annular platform of the bottle mouth.

[0021] Specifically, the height of the one-way valve is the same as the height of the bottleneck; that is, the upper opening of the one-way valve is flush with the upper opening of the bottleneck, and the lower end of the one-way valve is against the annular support platform; so that the paddle can cover the bottle mouth to ensure its sealing; the outer wall of the bottleneck is provided with threads, and is connected with the bottle cap through the threads.

[0022] Preferably, an annular gap is provided between the paddle and the side wall of the one-way valve; the annular gap corresponds to the position of the annular support.

[0023] Specifically, the annular gap is a non-closed ring, and the connecting portion is located at a non-closed position of the annular gap, connecting the paddle and the one-way valve together; the annular gap ensures that the paddle can be pushed open and reset; the annular gap does not overlap with the opening part of the bottle mouth, thereby ensuring its sealing.

[0024] Preferably, the portion of the paddle covering the bottle mouth is a frustum structure that is narrow at the top and wide at the bottom, and the coverage area of ​​the lower surface is larger than the opening area of ​​the bottle mouth.

[0025] Specifically, the size of the upper surface of the paddle is adapted to the opening at the lower end of the channel, and with the frustum structure that is narrow at the top and wide at the bottom, when the extruded material pushes the paddle open, the paddle can be prevented from blocking the channel, preventing the material from being squeezed out of the channel.

[0026] Preferably, the inner plug comprises a sleeve portion and an extension portion from bottom to top, and an annular skirt extending outward is provided between the sleeve portion and the extension portion, and the annular skirt covers the opening at the upper end of the bottleneck;

[0027] The sleeve connection portion is sleeved with the inner wall of the one-way valve.

[0028] Specifically, the annular skirt covers the upper opening of the bottleneck and the upper opening of the one-way valve at the same time, ensuring the sealing of the channel; the upper edge of the annular skirt is an arc structure, which is both beautiful and can avoid the bottleneck blocking the bottle cap when the bottle cap is closed.

[0029] Preferably, the height of the sleeve portion is smaller than the height of the one-way valve, and the size of the channel corresponding to the lower end of the sleeve portion is adapted to the size of the paddle.

[0030] Specifically, the height of the sleeve portion is smaller than the height of the one-way valve, so that there is a certain distance between the lower end of the channel and the paddle, so that the paddle has a moving space to be pushed open, and the formed cavity can also prevent excessive extrusion of the material body.

[0031] Preferably, the extension portion is a columnar structure that gradually narrows from bottom to top, and a through hole is provided at the upper end thereof, which is connected to the channel.

[0032] Specifically, the channel corresponding to the region of the extension portion has a portion close to the through hole that gradually narrows from bottom to top;

[0033] The through hole can control the amount of material extruded, and the through hole can cooperate with the bottle cap to form a closed space between the channel and the paddle, thereby preventing the material from overflowing.

[0034] Compared with the prior art, the utility model achieves the following beneficial effects:

[0035] The utility model provides a bottle mouth structure with a U-shaped one-way valve, comprising a one-way valve and an inner plug which are sequentially sleeved in the neck of the bottle. By arranging the one-way valve, a paddle is blocked at the bottle mouth. When a material body is squeezed, the material body pushes the paddle open and flows out. After squeezing, the paddle is automatically reset to block the bottle mouth, so that the material body squeezed outside cannot flow back, thereby avoiding the external material body and the external environment from polluting the internal material body; the one-way valve has a simple structure and high sealing performance, which can effectively prevent pollutants from entering the packaging container, so as to achieve the long-term freshness of the internal material body, thereby meeting the needs of some special materials, and at the same time, the one-way valve and the inner plug structure for locking freshness can be reused, which is both environmentally friendly and improves the use efficiency; the sleeve sealing structure of the one-way valve and the inner plug and the neck of the bottle not only meets the fixing effect of the one-way valve and the inner plug, but also plays a sealing role, thereby ensuring the airtightness of the one-way valve and the inside of the packaging container, and the overall structural design is simple and beautiful. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a product schematic diagram of a bottle mouth structure with a U-shaped one-way valve in an embodiment of the utility model;

[0037] Figure 2 It is a cross-sectional schematic diagram of a bottle mouth structure with a U-shaped one-way valve in an embodiment of the utility model;

[0038] Figure 3 A bottle mouth structure with a U-shaped one-way valve in the embodiment of the utility model Figure 2 A partial enlarged schematic diagram of the middle A part;

[0039] Figure 4 It is a cross-sectional schematic diagram of a one-way valve and an inner plug in a bottle mouth structure with a U-shaped one-way valve in an embodiment of the utility model;

[0040] Figure 5This is one of the schematic diagrams of a one-way valve of a bottle mouth structure with a U-shaped one-way valve in an embodiment of the utility model;

[0041] Figure 6 This is a second schematic diagram of a one-way valve of a bottle mouth structure with a U-shaped one-way valve in an embodiment of the utility model;

[0042] Figure 7 This is a third schematic diagram of a one-way valve of a bottle mouth structure with a U-shaped one-way valve in an embodiment of the utility model;

[0043] Figure 8 This is one of the schematic diagrams of the inner plug structure of a bottle mouth structure with a U-shaped one-way valve in an embodiment of the utility model;

[0044] Fig. 9 This is a second schematic diagram of an inner plug structure of a bottle mouth structure with a U-shaped one-way valve in an embodiment of the utility model.

[0045] Reference numerals:

[0046] 101, one-way valve; 102, first buckle member; 103, recessed portion; 104, paddle; 105, connecting portion; 106, cavity; 107, annular gap;

[0047] 201, inner plug; 202, second buckle piece; 203, channel; 204, sleeve portion; 205, extension portion; 206, annular skirt; 207, through hole;

[0048] 301, bottleneck; 302, annular groove; 303, bottle mouth; 304, annular support; 305, thread; 306, bottle cap. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0050] Example:

[0051] like Figures 1 to 9 A bottle mouth structure with a U-shaped one-way valve 101 is arranged at the upper end of the bottle body, including a bottleneck portion 301 that passes through the middle, the bottleneck portion 301 is connected to the inner cavity of the bottle body, and a bottle mouth 303 is formed at the connection point; the inner wall of the bottleneck portion 301 is sleeved with the one-way valve 101;

[0052] Specifically, the bottle mouth structure with the U-shaped one-way valve 101 is applied to the bottle mouth structure of a hose, such as a hose for daily chemical products.

[0053] The inner wall of the bottleneck portion 301 is provided with an annular groove 302, and the side wall of the one-way valve 101 is convex toward the side where the annular groove 302 is located, forming a first buckling member 102 adapted to the annular groove 302;

[0054] The one-way valve 101 is sleeved and fixed to the inner wall of the bottleneck portion 301 through the first buckle 102 .

[0055] The first buckle member 102 adopts an annular buckle rib structure, which has a simple structure and high sealing performance, that is, it can play the role of socketing and fixing the one-way valve 101 and the bottleneck portion 301, and can also effectively prevent pollutants from entering the packaging. At the same time, it can also ensure that the internal material of the bottle is isolated from the outside, achieving the effect of long-term freshness, thereby meeting the needs of some special materials, and the overall structure can be reused, which not only improves the use efficiency, but also is more environmentally friendly.

[0056] A recessed portion 103 is formed at the corresponding position of the inner wall of the one-way valve 101 and the first buckle piece 102, and a second buckle piece 202 adapted to the recessed portion 103 is provided on the outer wall of the inner plug 201;

[0057] The inner plug 201 is sleeved and fixed to the inner wall of the one-way valve 101 through the second buckle member 202 .

[0058] The same annular buckle rib structure is used between the inner plug 201 and the one-way valve 101, which not only realizes the sleeve fixing effect between the inner plug 201 and the one-way valve 101, but also ensures the sealing, so that the material can only flow out through the channel 203; at the same time, its overall structure can also be reused like the one-way valve 101, thereby improving the utilization efficiency.

[0059] The one-way valve 101 is a tubular structure with upper and lower openings. A paddle 104 that can be pushed upward is provided at the lower opening of the one-way valve 101, and the paddle 104 covers the bottle mouth 303;

[0060] A connecting portion 105 is provided between the paddle 104 and the opening at the lower end of the one-way valve 101 , and the paddle 104 is connected to the one-way valve 101 as a whole through the connecting portion 105 .

[0061] The connecting portion 105 can enable the paddle 104 to be pushed open when the material in the bottle is squeezed. After the squeezing is completed, the paddle 104 will automatically return to its original position and continue to cover the bottle mouth 303. The connecting portion 105 can ensure that the paddle 104 will automatically return to its original position after being pushed open within a certain range.

[0062] The inner plug 201 further comprises an inner plug 201, wherein a channel 203 communicating with each other from top to bottom is provided in the middle of the inner plug 201, wherein the inner plug 201 extends from the opening at the upper end of the one-way valve 101 into the one-way valve 101, and a cavity 106 for the movement of the paddle is formed between the inner plug 201 and the paddle 104, wherein one end of the channel 203 is communicated with the outside, and the other end is communicated with the cavity 106;

[0063] When the material body is squeezed, it pushes the paddle 104 away from the bottle mouth 303 and enters the inner plug 201 , and flows out to the outside through the channel 203 .

[0064] The upper opening of the one-way valve 101 is flush with the upper opening of the bottleneck 301 ; the bottle mouth 303 has an annular support 304 protruding inwardly, and the paddle 104 covers the annular support 304 of the bottle mouth 303 .

[0065] The height of the one-way valve 101 is the same as that of the bottleneck 301; that is, the upper opening of the one-way valve 101 is flush with the upper opening of the bottleneck 301, and the lower end of the one-way valve 101 is against the annular support 304; so that the paddle 104 can cover the bottle mouth 303 to ensure its sealing; the outer wall of the bottleneck 301 is provided with a thread 305, and is connected with the bottle cap 306 through the thread 305.

[0066] An annular gap 107 is provided between the paddle 104 and the side wall of the one-way valve 101 ; the annular gap 107 corresponds to the position of the annular support 304 .

[0067] The annular gap 107 is a non-closed ring, and the connecting portion 105 is located at a non-closed position of the annular gap 107, connecting the paddle 104 and the one-way valve 101 as one; the annular gap 107 ensures that the paddle 104 can be pushed open and reset; the annular gap 107 does not overlap with the opening part of the bottle mouth 303, thereby ensuring its sealing.

[0068] The portion of the paddle 104 covering the bottle mouth 303 is a truncated cone structure that is narrow at the top and wide at the bottom, and the coverage area of ​​the lower surface thereof is larger than the opening area of ​​the bottle mouth 303 .

[0069] The size of the upper surface of the paddle 104 is adapted to the opening at the lower end of the channel 203 . At the same time, with the frustum structure that is narrow at the top and wide at the bottom, when the paddle 104 is pushed open by the extruded material, the paddle 104 can be prevented from blocking the channel 203 , preventing the material from being squeezed out of the channel 203 .

[0070] The inner plug 201 comprises a sleeve portion 204 and an extension portion 205 from bottom to top. An annular skirt 206 extending outward is provided between the sleeve portion 204 and the extension portion 205. The annular skirt 206 covers the opening at the upper end of the bottleneck portion 301.

[0071] The sleeve portion 204 is sleeved with the inner wall of the one-way valve 101 .

[0072] The annular skirt 206 covers the upper opening of the bottleneck 301 and the upper opening of the one-way valve 101 at the same time, ensuring the sealing of the channel 203; the upper edge of the annular skirt 206 is an arc structure, which is both beautiful and can avoid the bottleneck 301 blocking the bottle cap 306 when the bottle cap 306 is closed.

[0073] The height of the sleeve portion 204 is smaller than that of the one-way valve 101 , and the size of the channel 203 corresponding to the lower end of the sleeve portion 204 is adapted to the size of the paddle 104 .

[0074] The height of the sleeve portion 204 is smaller than that of the one-way valve 101, so that there is a certain distance between the lower end of the channel 203 and the paddle 104. This allows the paddle 104 to have a moving space to be pushed open, and the formed cavity 106 can also prevent excessive extrusion of the material.

[0075] The extension portion 205 is a columnar structure that gradually narrows from bottom to top, and a through hole 207 is provided at the upper end thereof, which is communicated with the channel 203 .

[0076] The channel 203 corresponding to the region of the extension portion 205, whose portion close to the through hole 207 gradually narrows from bottom to top;

[0077] The through hole 207 can control the amount of material extruded, and the through hole 207 can cooperate with the bottle cap 306 to form a closed space between the channel 203 and the paddle 104, thereby preventing the material from overflowing.

[0078] The utility model provides a bottle mouth structure with a U-shaped one-way valve 101, and its structure and use principle are as follows: a material body in a tube is squeezed out of a bottle mouth 303 by squeezing a hose, a paddle 104 of the one-way valve 101 is pushed open to enter a channel 203 of an inner plug 201, and the material body is squeezed out through the channel 203; after the extrusion is completed, the paddle 104 automatically returns to its original position to cover and close the bottle mouth 303, so as to prevent the material body squeezed out by the paddle 104 from flowing back into the tube, thereby preventing the external material body and the external environment from contaminating the material body in the tube.

[0079] The utility model provides a bottle mouth structure with a U-shaped one-way valve 101. Through the structural arrangement of the one-way valve 101 and the inner plug 201, the extruded material cannot return to the hose, preventing the material from flowing back, thereby effectively realizing the non-return function of the material. The one-way valve 101 has a simple structure and high sealing performance, effectively preventing pollutants from entering and the material from flowing back, and the overall bottle mouth structure can be reused, which is both environmentally friendly and improves the use efficiency.

[0080] According to the disclosure and teaching of the above description, those skilled in the art to which the utility model belongs can also change and modify the above implementation. Therefore, the utility model is not limited to the specific implementation methods disclosed and described above, and some modifications and changes to the utility model should also fall within the scope of protection of the claims of the utility model. In addition, although some specific terms are used in this specification, these terms are only for the convenience of description and do not constitute any limitation to the utility model.

Claims

1. A bottle mouth structure with a U-shaped one-way valve, arranged at the upper end of the bottle body, comprising a bottle neck portion with a through-hole in the middle, the bottle neck portion is connected to the inner cavity of the bottle body, and the connection portion forms a bottle mouth; the inner wall of the bottle neck portion is sleeved with a one-way valve; characterized in that: The one-way valve is a tubular structure with upper and lower openings, and a paddle that can be pushed upward is provided at the lower opening of the one-way valve, and the paddle covers the bottle mouth; It also includes an inner plug, wherein a channel communicating with each other from top to bottom is provided in the middle of the inner plug, the inner plug extends from the opening at the upper end of the one-way valve into the one-way valve, and a cavity is formed between the inner plug and the paddle for the paddle to move, one end of the channel is communicated with the outside, and the other end is communicated with the cavity; When the material in the bottle is squeezed, the paddle is pushed open from the bottle mouth and enters the inner plug, and flows out to the outside through the channel.

2. A bottle mouth structure with a U-shaped one-way valve according to claim 1, characterized in that: The inner wall of the bottleneck is provided with an annular groove, and the side wall of the one-way valve is convex toward the side where the annular groove is located, forming a first buckle member adapted to the annular groove; The one-way valve is sleeved and fixed to the inner wall of the bottleneck portion through a first buckle piece.

3. A bottle mouth structure with a U-shaped one-way valve according to claim 2, characterized in that: A recessed portion is formed at the corresponding position of the inner side wall of the one-way valve and the first buckle piece, and a second buckle piece adapted to the recessed portion is provided on the outer side wall of the inner plug; The inner plug is fixed to the inner wall of the one-way valve by sleeve connection with a second buckle piece.

4. The bottle mouth structure with a U-shaped one-way valve according to claim 1, characterized in that: A connecting portion is provided between the paddle and the opening at the lower end of the one-way valve, and the paddle is connected to the one-way valve as a whole through the connecting portion.

5. The bottle mouth structure with a U-shaped one-way valve according to claim 1, characterized in that: The upper opening of the one-way valve is flush with the upper opening of the bottleneck; An annular support platform is protruded inwardly from the bottle mouth, and the paddle covers the annular support platform of the bottle mouth.

6. The bottle mouth structure with a U-shaped one-way valve according to claim 5, characterized in that: An annular gap is provided between the paddle and the side wall of the one-way valve; the annular gap corresponds to the position of the annular support platform.

7. The bottle mouth structure with a U-shaped one-way valve according to claim 5, characterized in that: The portion of the paddle covering the bottle mouth is a truncated cone structure that is narrow at the top and wide at the bottom, and the coverage area of ​​the lower surface is larger than the opening area of ​​the bottle mouth.

8. The bottle mouth structure with a U-shaped one-way valve according to claim 5, characterized in that: The inner plug is composed of a sleeve portion and an extension portion from bottom to top, and an annular skirt extending outward is provided between the sleeve portion and the extension portion, and the annular skirt covers the opening at the upper end of the bottleneck portion; The sleeve connection portion is sleeved with the inner wall of the one-way valve.

9. The bottle mouth structure with a U-shaped one-way valve according to claim 8, characterized in that: The height of the sleeve portion is smaller than the height of the one-way valve, and the size of the channel corresponding to the lower end of the sleeve portion is adapted to the size of the paddle.

10. The bottle mouth structure with a U-shaped one-way valve according to claim 8, characterized in that: The extension part is a columnar structure that gradually narrows from bottom to top, and a through hole is provided at the upper end thereof, which is communicated with the channel.

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