Pressure relief blowout prevention structure of water cup

Abstract

The utility model discloses a pressure relief blowout prevention structure of a water cup, which comprises a cup body and a cup cover, the cup cover is arranged on the cup body, a groove position is arranged on the cup cover, a water drinking component is arranged in the groove position, a dustproof sealing cover positioned in the groove position is arranged on the cup cover, one side of the dustproof sealing cover is hinged with the cup cover, an installation cavity is arranged in the cup cover, and the installation cavity is communicated with the groove position. A sealing hole is formed in the side wall of the mounting cavity, the interior of the cup body is communicated with the mounting cavity through the sealing hole, an air release valve is arranged in the sealing hole and keeps a normally closed state, a key assembly is arranged in the mounting cavity, one end of the key assembly movably extends into the air release valve, and the dustproof sealing cover is connected with the key assembly in a clamped mode. And when the key assembly is pressed to move, the air release valve is converted from closing to opening. Hot steam in the cup body is discharged by pressing the key, liquid is prevented from being directly sprayed out of the drinking water assembly, and safety is improved.

Description

Technical Field

[0001] The utility model relates to a water cup, in particular to a pressure relief and anti - spraying structure of a water cup. Background Art

[0002] Existing water cups include a cup body and a cup cover body. The cup cover body includes a rotary cap, a flip cover, a button assembly, and a straw assembly. The outer side of the opening of the cup body is threadedly connected to the inner side of the rotary cap. One side of the flip cover is hinged to one side of the top of the rotary cap, and the other side of the flip cover is snap - fitted with the other side of the top of the rotary cap through the button assembly. A straw fixing hole is opened on the rotary cap, and the straw assembly is installed in the straw fixing hole. Currently, during the use of these water cups, when hot water is added to the cup body, the steam generated by the hot water increases the air pressure in the cup body. When the flip cover is instantly opened, liquid will spray out, easily causing scalding. Even if anti - spraying air holes are designed on the cup cover body to prevent spraying, it will still leak water when inverted, and dust can easily enter the cup body through the anti - spraying air holes, posing a safety hazard. Summary of the Invention

[0003] In order to solve the above - mentioned technical problems, the present invention provides a pressure relief and anti - spraying structure of a water cup, which improves safety and avoids the liquid in the cup body from directly spraying out from drinking mouths such as straws.

[0004] In order to solve the above - mentioned technical problems, the present invention adopts the following technical solutions:

[0005] A pressure relief and anti - spraying structure of a water cup includes a cup body and a cup cover. The cup cover is installed on the cup body. A slot is provided on the cup cover, and a drinking assembly is provided in the slot. A dust - proof sealing cover is provided on the cup cover in the slot. One side of the dust - proof sealing cover is hinged to the cup cover for installation. An installation cavity is provided inside the cup cover. A sealing hole is provided on the side wall of the installation cavity. The sealing hole communicates the inside of the cup body with the installation cavity. A pressure relief valve is provided in the sealing hole. The pressure relief valve remains in a normally closed state. A button assembly is provided in the installation cavity. One end of the button assembly extends into the pressure relief valve movably. The dust - proof sealing cover is snap - fitted with the button assembly. When the button assembly is pressed and moved, the pressure relief valve is switched from closed to open.

[0006] As a further improvement, the button assembly includes a button frame, a button plate, and a top shaft. The button plate is provided on the outer side of the button frame. The top shaft is installed inside the button frame. Front top blocks and rear top blocks are provided in the button frame at intervals and with a height difference. The front top blocks are in the upper - side area of the rear top blocks. A through - hole is provided at the top of the installation cavity. A clamping plate is provided on the dust - proof sealing cover. A clamping hole is provided on the clamping plate. The clamping plate extends into the button frame from the through - hole. The front top blocks and the rear top blocks are respectively used for snap - fitting with the clamping plate. The top shaft extends into the pressure relief valve movably.

[0007] As a further improvement, the air release valve has a valve structure with one end open and the other end in a V-shaped and normally closed state. After the top shaft extends into the air release valve, there are gaps between the side wall and the end of the top shaft and the air release valve. Or: The air release valve has a valve structure with both ends open and normally open. The end of the top shaft is provided with a sealing protrusion, and an exhaust groove is provided on one side of the top shaft along the axial direction. The exhaust groove extends to one side of the sealing protrusion. After the top shaft extends into the air release valve, the end of the top shaft seals the air release valve to keep the air release valve in a normally closed state.

[0008] As a further improvement, the front top block is horizontally arranged, the rear top block is a wedge-shaped block, and the front top block, the rear top block, the top shaft, the button frame and the button plate are integrally formed structures.

[0009] As a further improvement, a spring is provided in the installation cavity of the cup lid, a positioning shaft is provided on the button frame, one end of the spring is sleeved on the positioning shaft, and the other end of the spring is connected to the inner wall of the installation cavity.

[0010] As a further improvement, a travel rod is provided on the button frame, a convex block protruding upward is provided on the travel rod, and a limit hole is provided on the cup lid. The convex block is movably clamped in the limit hole.

[0011] As a further improvement, an annular groove is provided on the air release valve, and the annular groove is clamped on the side wall of the sealing hole in the installation cavity.

[0012] As a further improvement, the drinking component includes a drinking port and a straw installed in the drinking port.

[0013] Compared with the prior art, the utility model has the following beneficial technical effects:

[0014] By providing a one-way air release valve inside the cup lid and realizing a linkage structure with the button, pressing the button assembly makes the top shaft push open the air release valve. The hot steam inside the cup body will first enter the installation cavity through the air release valve and then be discharged outward from the gap between the installation cavity and the button plate, thereby playing a role in pressure reduction, making the pressure inside and outside the cup body balanced, effectively avoiding the problem that the liquid sprays out from the straw due to the large pressure generated by the relatively high liquid temperature inside the cup body, and improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structure schematic diagram of the utility model;

[0016] Figure 2 It is an exploded structure schematic diagram of the cup lid and the button assembly of the utility model;

[0017] Figure 3 It is a three-dimensional structure schematic diagram of the cup lid of the utility model;

[0018] Figure 4 It is a partial cross-sectional structure schematic diagram of the first embodiment of the air release valve in the utility model;

[0019] Figure 5 This is a schematic diagram of the partial sectional structure of the second embodiment of the air release valve in the present utility model;

[0020] Figure 6 is Figure 5 a schematic diagram of the state where the top shaft passes through the air release valve.

[0021] Reference numerals:

[0022] Cup body 1, cup cover 2, dust-proof sealing cover 3, button assembly 4, drinking assembly 5, slot 6, installation cavity 7, through hole 8, limiting hole 9, clamping plate 10, clamping hole 11, sealing hole 12, air release valve 13, sealing protrusion 14, exhaust groove 15, button plate 41, button frame 42, top shaft 43, front top block 44, rear top block 45, spring 46, stroke rod 47, convex block 48. Detailed implementation manners

[0023] The following details the implementation manners of the present invention. Examples of the implementation manners are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The implementation manners described below with reference to the drawings are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0024] In the description of the present invention, it should be understood that if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present invention, "a plurality" means two or more unless otherwise specifically defined.

[0025] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] As Figures 1-4 shown, a pressure relief and anti-spray structure for a water cup includes a cup body 1 and a cup lid 2. The cup lid 2 is installed on the cup body 1. A slot 6 is provided on the cup lid 2, and a drinking component 5 is provided in the slot 6. A dust-proof sealing cover 3 located in the slot 6 is provided on the cup lid 2. One side of the dust-proof sealing cover 3 is hingedly installed with the cup lid 2. An installation cavity 7 is provided inside the cup lid 2. A sealing hole 12 is provided on the side wall of the installation cavity 7. The sealing hole 12 communicates the inside of the cup body 1 with the installation cavity 7. A pressure relief valve 13 is provided in the sealing hole 12. The pressure relief valve 13 remains in a normally closed state. A button assembly 4 is provided in the installation cavity 7. One end of the button assembly 4 extends into the pressure relief valve 13 movably. The dust-proof sealing cover 3 is snap-connected with the button assembly 4. When the button assembly 4 is pressed and moves, the pressure relief valve will be pushed open. The drinking component can be a straw, and one end of the straw extends into the cup body. When the dust-proof sealing cover is closed, the straw is pressed down to bend the straw, which also forms a barrier seal. The dust-proof sealing cover includes the straw to avoid interference by external dust. The pressure relief valve remains closed when not subjected to external pressing force. At this time, the inside of the cup body is not connected to the installation cavity, and the hot steam inside the cup body cannot enter the installation cavity. After the button is pressed, the pressure relief valve will be pushed open, so that the inside of the cup body is connected to the installation cavity. The hot steam in the cup body can enter the installation cavity through the pressure relief valve and then be discharged out through the gap between the button assembly and the installation cavity, reducing the pressure inside the cup body and maintaining the pressure balance inside and outside the cup body. Then, after the dust-proof sealing cover is fully opened, the pressure inside the cup body tends to be balanced with the outside. At this time, the liquid will not spray out from the straw, improving safety and avoiding scalding the user with the sprayed liquid.

[0027] The button assembly 4 includes a button frame 42, a button plate 41, and a top shaft 43. The button plate 41 is disposed on the outer side surface of the button frame 42. The top shaft 43 is mounted inside the button frame 42 and is used to extend into the air release valve 13. Inside the button frame 42, there are a front top block 44 and a rear top block 45 that are spaced apart and have a height difference. The front top block 44 is in the upper side area of the rear top block 45. A through hole 8 is provided at the top of the installation cavity 7. The dust-proof sealing cover 3 is provided with a clamping plate 10, and the clamping plate 10 is provided with a clamping hole 11. The clamping plate 10 extends into the button frame 42 from the through hole 8. The front top block 44 and the rear top block 45 are respectively used for engagingly connecting with the clamping plate 10. There is a gap between the top shaft 43 and the air release valve 13. The front top block 44 is horizontally arranged, and the rear top block 45 is a wedge-shaped block. The front top block, the rear top block, the top shaft, the button frame, and the button plate are an integrally formed structure. The button frame can move within a certain range in the installation cavity to complete the opening and closing of the dust-proof sealing cover. The clamping hole is usually a rectangular hole with a certain length in the up and down direction and can be respectively connected to the front top block and the rear top block.

[0028] A spring 46 is provided in the installation cavity 7 of the cup cover 2. The button frame 42 is provided with a positioning shaft. One end of the spring 46 is sleeved on the positioning shaft, and the other end of the spring 46 is connected to the inner wall of the installation cavity 7. After pressing, the spring is compressed. After releasing the external acting force, the resilience generated by the spring will cause the button frame to automatically reset.

[0029] The key component has a two-stage operation. When the dust-proof sealing cover 3 is completely closed, the rear top block 45 inside the key frame 42 extends into the card hole 11 of the card board 10, making the dust-proof sealing cover 3 stably closed. In this state, a part of the top shaft 43 extends into the air release valve 13, but does not push open the air release valve 13, and the air release valve 13 remains closed. When pressing the key board 41 to open the dust-proof sealing cover 3 for drinking water, the key frame 42 and the key board 41 move inward synchronously. Since the distance between the front top block 44 and the rear top block 45 is relatively small, the front top block 44 moves towards the card board 10, that is, approaches the card board 10. At the same time, the rear top block 45 disengages from the card hole. After the rear top block 45 disengages from the card hole 11 of the card board 10, within a very short time, the card board bounces up a small distance, and then the front top block 44 extends into the card hole 11 to form a buckle on the card board 10. At this time, the top shaft 43 also opens the air release valve 13, and the hot air in the cup body will enter the installation cavity through the gap between the top shaft and the air release valve, and then be discharged out through the gap between the installation cavity and the key component, reducing the air pressure in the cup body and making the air pressure in the cup body balanced with the outside. After releasing the pressing force on the key board, the compressed spring generates a resilience force, driving the key board and the key frame to move outward and reset. This force is relatively small, and the key frame and the key board move relatively slowly. First, the front top block disengages from the card hole of the card board, and then the key frame and the key board continue to move outward. When moving to the gap between the front top block and the rear top block, the dust-proof sealing cover is not restricted and thus bounces up to complete the opening of the dust-proof sealing cover, and drink water through the drinking component.

[0030] A travel rod 47 is provided on the key frame 42, and a convex block 48 protruding upward is provided on the travel rod 47. A limit hole 9 is provided on the cup cover 2, and the convex block 48 is movably clamped in the limit hole 9 to limit the moving stroke of the key frame and the top shaft.

[0031] An annular groove is provided on the air release valve 13, and the annular groove clamps the side wall of the sealing hole in the installation cavity, which is convenient for the installation of the air release valve and ensures the stability of the assembly of the air release valve.

[0032] There are the following two preferred embodiments for the air release valve.

[0033] Refer to Figure 4 As shown, the air release valve 13 is a valve structure with one end open and the other end in a V shape and normally closed, forming a one-way valve with one end open and one end sealed, and the air release valve forms a self-sealing structure. After the top shaft 43 extends into the air release valve, there is a gap between the side wall and the end of the top shaft 43 and the air release valve 13. Pressing the key board 41 drives the top shaft 43 to move. The top shaft 43 moves towards the closed end of the air release valve 13 and pushes open the closed end of the air release valve 13. At this time, the inside of the cup body 1 is communicated with the installation cavity 7, and the hot steam inside the cup body can enter the installation cavity through the air release valve and then be discharged to the outside, reducing the pressure in the cup body and maintaining the pressure balance inside and outside the cup body.

[0034] Or as Figure 5 shown, the air release valve 13 is a valve structure with both ends open and normally open, that is, the air release valve 13 is a two-way valve instead of a one-way valve. A sealing protrusion 14 is provided at the end of the top shaft 43. The sealing protrusion 14 extends vertically towards one side. An exhaust groove 15 is provided on one side of the top shaft 43 along the axial direction. The exhaust groove 15 extends to one side of the sealing protrusion. After the top shaft 43 extends into the air release valve 13, the sealing protrusion at the end of the top shaft 43 closely adheres to the inner surface of the air release valve 13, thereby sealing the air release valve 13 and keeping the air release valve in a normally closed state. The entire end of the top shaft 43 is used to seal the air release valve 13. When there is no external force, the air release valve is kept in a normally closed state. Refer to Figure 6 shown, as the keypad is pressed, the end of the top shaft extends to the outside of the air release valve, and the exhaust groove communicates with the internal space of the cup body. The hot steam inside the cup body flows to the installation cavity through the exhaust groove and then is discharged outward, playing a role in reducing the air pressure.

[0035] It should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. However, any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A pressure relief and anti - spraying structure for a water cup, comprising a cup body and a cup cover, the cup cover being installed on the cup body, characterized in that, The cup lid is provided with a slot, and a drinking component is arranged in the slot. A dust-proof seal cover is arranged in the slot of the cup lid. One side of the dust-proof seal cover is hinged and installed on the cup lid. An installation cavity is arranged in the cup lid. A sealing hole is arranged on the side wall of the installation cavity. The sealing hole communicates the inside of the cup body with the installation cavity. A pressure relief valve is arranged in the sealing hole. The pressure relief valve remains in a normally closed state. A button assembly is arranged in the installation cavity. One end of the button assembly extends into the pressure relief valve movably. The dust-proof seal cover is snap-connected with the button assembly. When the button assembly is pressed and moves, the pressure relief valve is switched from closed to open.

2. The pressure relief and anti - spraying structure of the water cup according to claim 1, characterized in that, The button assembly includes a button frame, a button plate and a top shaft. The button plate is arranged on the outer side surface of the button frame. The top shaft is installed inside the button frame. A front top block and a rear top block which are spaced apart and have a height difference are arranged in the button frame. The front top block is in the upper side area of the rear top block. A through hole is arranged at the top of the installation cavity. A clamping plate is arranged on the dust-proof seal cover. A clamping hole is arranged on the clamping plate. The clamping plate extends into the button frame from the through hole. The front top block and the rear top block are respectively used for snap-connecting with the clamping plate. The top shaft extends into the pressure relief valve movably.

3. The pressure relief and anti - spraying structure of the water cup according to claim 2, characterized in that, The pressure relief valve is a valve structure with one end open and the other end in a V shape and remaining normally closed. After the top shaft extends into the pressure relief valve, there is a gap between the side wall and the end of the top shaft and the pressure relief valve.

4. The pressure relief and anti-spray structure of the water cup according to claim 2, characterized in that, The pressure relief valve is a valve structure with both ends open and remaining normally open. A sealing protrusion is arranged at the end of the top shaft. An exhaust groove is arranged on one side of the top shaft along the axial direction. The exhaust groove extends to one side of the sealing protrusion. After the top shaft extends into the pressure relief valve, the end of the top shaft seals the pressure relief valve to keep the pressure relief valve in a normally closed state.

5. The pressure relief and anti-spray structure of the water cup according to claim 2, characterized in that, A spring is arranged in the installation cavity of the cup lid. A positioning shaft is arranged on the button frame. One end of the spring is sleeved on the positioning shaft, and the other end of the spring is connected with the inner wall of the installation cavity.

6. The pressure relief and anti-spray structure of the water cup according to claim 2, wherein The front top block is horizontally arranged, and the rear top block is a wedge-shaped block. The front top block, the rear top block, the top shaft, the button frame and the button plate are integrally formed structures.

7. The pressure relief and anti - spray structure of the water cup according to claim 2, characterized in that, A travel rod is arranged on the button frame. A convex block protruding upward is arranged on the travel rod. A limiting hole is arranged on the cup lid. The convex block is movably clamped in the limiting hole.

8. The pressure relief and anti-spray structure of the water cup according to claim 1, characterized in that, An annular groove is arranged on the pressure relief valve. The annular groove is clamped on the side wall of the sealing hole in the installation cavity.

9. The pressure relief and anti-spray structure of the water cup according to claim 1, characterized in that The drinking component includes a drinking port and a straw installed in the drinking port.

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