Cup cover capable of feeding air and relieving pressure and extraction cup with cup cover

Abstract

A cup cover capable of achieving air inlet and pressure relief is characterized in that the cup cover comprises a cover body, a cover plate and a valve block, the upper end face of the cover body is concave downwards to form a concave area, a connecting hole is formed in the middle of a bottom plate of the concave area, and air inlet holes are formed around the connecting hole; the cover plate is arranged on the port of the concave area, the lower end face of the cover plate is provided with a convex column directly facing the connecting hole, and a ventilation gap is formed between the periphery of the cover plate and the port of the concave area; the valve plate is in a bowl shape, the middle of the valve plate is provided with a connecting column protruding upwards, the connecting column is arranged in the connecting hole from bottom to top, the middle of the connecting column is provided with a pressure relief hole, and a pressure relief valve is arranged in the pressure relief hole. The utility model further discloses an extraction cup. Pressure relief and one-way air inlet do not interfere with each other and bear respective functions respectively, the overall structure is compact, and assembling is convenient.

Description

Technical Field

[0001] The utility model relates to a cup cover, in particular to a cup cover used for a brewing and extraction cup. The utility model also relates to a brewing and extraction cup capable of converting a capsule into a capsule drink. Background Art

[0002] With the continuous development of the capsule beverage market (including traditional Chinese medicine, tea, and coffee), and the continuous introduction of various beverages, a large number of capsule beverage production devices have appeared on the market. Capsule Chinese medicine machines or capsule coffee machines have long been popular as simple and convenient brewing devices. Their working principle is to place the capsule cup into the capsule machine chamber, then close the chamber. The two tubular needles in the chamber simultaneously pierce the capsule, and then high-pressure hot water is injected into the capsule, extracting a cup of fresh beverage.

[0003] However, currently, common Chinese medicine capsule machines or coffee capsule machines are generally indoor units. They are large and bulky, making them inconvenient to carry and generally need to be placed in a fixed place for use. They cannot meet the user's demand for brewing drinks anytime and anywhere. To address this situation, some portable capsule beverage making devices have appeared on the market, but most of these devices are manually operated, that is, the high-pressure water required for brewing is provided by manually pressing a piston rod on the machine body multiple times. Since the high-pressure water for brewing needs to be obtained manually by the user, it imposes a certain operational burden on the user. Moreover, the production process of this type of device is relatively complicated and the operation time is long, which also fails to meet people's demand for quickly obtaining the desired drink.

[0004] To this end, several improved brewing cups are disclosed in the prior art, such as the Chinese utility model patent "Portable capsule beverage brewing cup and portable beverage brewing cup" with patent number ZL201621001054.0 (authorization announcement number CN206403624U); you can also refer to the Chinese invention patent "Portable coupled capsule beverage brewing cup and portable coupled beverage brewing cup" with patent number ZL201611129161.6 (authorization announcement number CN106820973B); and the Chinese invention patent "A flexible container and film capsule beverage cup" with patent number ZL201710213672.4 (authorization announcement number CN107048921B).

[0005] The lids of existing brewing cups generally only have opening and closing functions, lacking pressure relief or one-way air intake. Some cups have built-in heating functions. Once the lid is closed, due to its tight seal, air pressure is difficult to release during the heating process, posing a safety hazard. In other cases, water in the cup is pumped out through a built-in pipeline for extraction, creating a negative pressure inside the cup. If air is not replenished in time, subsequent extractions will be cut off, causing inconvenience. Therefore, it is imperative to develop a cup lid that is both airtight and has both one-way air intake and pressure relief functions. Utility Model Content

[0006] The first technical problem to be solved by the present invention is to provide a cup cover with both one-way air intake and pressure relief in response to the above technical status quo.

[0007] The second technical problem to be solved by the present invention is to provide an extraction cup with a cup cover having both one-way air intake and pressure relief functions in response to the above-mentioned technical status quo.

[0008] The technical solution adopted by the utility model to solve the above-mentioned first technical problem is: a cup cover capable of air intake and pressure relief, characterized in that the cup cover includes

[0009] The upper end surface of the cover is concave downward to form a concave area, the middle part of the bottom plate of the concave area has a connecting hole, and an air inlet hole is opened around the connecting hole;

[0010] a cover plate disposed on the port of the recessed area, the lower end surface of the cover plate having a protrusion facing the connection hole, and a ventilation gap formed between the outer periphery of the cover plate and the port of the recessed area; and

[0011] The valve disc can open and close the aforementioned air inlet hole. The valve disc is bowl-shaped and has an upwardly protruding connecting column in the middle. The connecting column is arranged in the aforementioned connecting hole from bottom to top and has a pressure relief hole in the middle. A pressure relief valve is provided in the pressure relief hole; when the cup body is in a normal pressure state, the valve disc flips upward to cover the aforementioned air inlet hole; when the cup body is in a negative pressure state, the valve disc flips downward to open the aforementioned air inlet hole.

[0012] Furthermore, the convex column is concave to form an installation cavity, and the pressure relief valve includes a compression spring and a plug. The compression spring is arranged in the installation cavity, and the plug is placed on the pressure relief hole and resists the compression spring.

[0013] Furthermore, the cover body includes an inner cover, an outer cover and an inner lining ring. The inner cover is annular, the outer cover is arranged on the outside of the inner cover and has the recessed area, the outer cover has an assembly hole on the port of the recessed area, and the inner lining ring is annular and is arranged on the lower end surface of the inner cover. The inner ring of the inner lining ring has an extension portion connected to the assembly hole.

[0014] Furthermore, the inner ring of the inner cover has an internal thread that cooperates with the cup body to open and close, so as to adapt to the external thread of the cup body port.

[0015] Furthermore, the outer periphery of the cover plate has an extension portion that fits the upper edge of the assembly hole, while the extension portion fits the lower edge of the assembly hole. There are at least two assembly holes arranged at intervals, and correspondingly, there are at least two extension portions arranged at intervals.

[0016] The technical solution adopted by the present invention to solve the above-mentioned second technical problem is: an extraction cup, comprising a cup body and a cup cover which is openably and closably arranged at an end of the cup body.

[0017] Compared with the existing technology, the advantages of this utility model are: during pressure relief, the pressure relief valve opens, allowing air inside the cup to be discharged through the pressure relief valve and the vent gap. When negative pressure is established inside the cup, the valve disc flips downward, opening the air inlet. The valve disc and the air inlet cooperate to form a one-way air inlet valve, allowing air to enter through the vent gap and then through the air inlet into the cup. The pressure relief and one-way air inlet functions independently of each other, resulting in a compact overall structure that is easy to assemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of an embodiment.

[0019] Figure 2 for Figure 1 Exploded diagram of .

[0020] Figure 3 for Figure 2 Enlarged exploded view of the medium cup lid.

[0021] Figure 4 for Figure 3 An enlarged view of the middle cover from another angle.

[0022] Figure 5 It is an enlarged three-dimensional cross-sectional view of the cup lid. DETAILED DESCRIPTION

[0023] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0024] like Figure 1 and Figure 2 As shown, the extraction cup in this embodiment includes a cup body 2 and a cup lid 1 that is openably and closably mounted on the end of the cup body 2. A capsule holder 22 and a water receiving cup 21 are detachably mounted at the lower end of the cup body 2. Capsules can be placed on the capsule holder 22. The cup body 2 has a built-in heater and a pressurizing assembly. The heater heats the cup body to produce high-temperature water, and the pressurizing assembly pressurizes the water in the cup body 2 into the capsules in the capsule holder, completing the extraction and producing a capsule beverage.

[0025] like Figure 3 、 Figure 4 and Figure 5 As shown, the cup cover 1 is provided with a pressure relief valve and a one-way air inlet valve; when the cup body 2 is in a heated state, steam needs to be discharged, and the pressure relief valve can be opened to exhaust; during extraction, the pressurizing component works, and a negative pressure state is formed in the cup body 2, and the one-way air inlet valve opens to complete the air intake.

[0026] The cup cover 1 includes a cover body, a cover plate 14 and a valve plate 15. The upper end surface of the cover body is concave downward to form a recessed area 110. The middle part of the bottom plate of the recessed area 110 has a connecting hole 112, and an air inlet hole 113 is opened around the connecting hole 112; the cover plate 14 is arranged on the port of the recessed area 110, and the lower end surface of the cover plate 14 has a convex column 142 facing the connecting hole 112. The convex column 142 is concave to form an installation cavity, and a ventilation gap is formed between the outer periphery of the cover plate 14 and the port of the recessed area 110.

[0027] Valve disc 15 opens and closes the aforementioned air inlet 113. Valve disc 15 is bowl-shaped and features an upwardly protruding connecting post 151 in the middle. Valve disc 15 can be made of silicone, making it easily deformable. Connecting post 151 extends from bottom to top within connecting hole 112 and features a pressure relief hole 152 in the middle. This pressure relief hole 152 houses a pressure relief valve. When the cup 2 is under normal pressure, valve disc 15 flips upward to cover air inlet 113. When the cup 2 is under negative pressure, valve disc 15 flips downward to open air inlet 113. Together, valve disc 15 and air inlet 113 form a one-way air inlet valve.

[0028] The pressure relief valve includes a compression spring 16 and a plug 17 . The compression spring 16 is arranged in the installation cavity, and the plug 17 is placed on the pressure relief hole 152 and abuts against the compression spring 16 .

[0029] The lid body in this embodiment includes an inner lid 12, an outer cover 11, and an inner lining ring 13. The inner lid 12 is annular, and the inner ring of the inner lid 12 has an internal thread 121 that cooperates with the cup body to open and close, so as to adapt to the external thread of the cup body port. The outer cover 11 is arranged on the outside of the inner lid 12 and has a recessed area 110. The outer cover 11 has an assembly hole 111 at the end of the recessed area 110. The inner lining ring 13 is arranged on the lower end surface of the inner lid 12. The inner ring of the inner lining ring 13 has an extension portion 131 connected to the assembly hole 111. The outer periphery of the cover plate 14 has an extension portion 141, which is adapted to the upper edge of the assembly hole 111, and the extension portion 131 is adapted to the lower edge of the assembly hole 111.

[0030] In this embodiment, there are three assembly holes 111 arranged evenly at intervals. Correspondingly, there are three extension portions 131 arranged evenly at intervals, and there are three elongated portions 141 arranged evenly at intervals.

[0031] When the cup is heated, pressure relief is required. The pressure relief valve opens, allowing air inside the cup to escape through the valve and the vent gap. To prepare a drink, the pressurizing assembly pressurizes the water inside the cup into the capsule in the capsule holder. This creates negative pressure in the cup, causing the valve to flip downward, opening the air inlet. This valve and the air inlet form a one-way air inlet valve, allowing air to enter through the vent gap and into the cup through the air inlet. The pressure relief and one-way air inlet functions independently perform their respective functions, resulting in a compact structure that is easy to assemble.

Claims

1. A cup lid capable of air intake and pressure relief, characterized in that The cup lid includes The upper end surface of the cover is concave downward to form a recessed area (110), a connecting hole (112) is provided in the middle of the bottom plate of the recessed area (110), and an air inlet hole (113) is provided around the connecting hole (112); A cover plate (14) is provided on the port of the aforementioned recessed area (110), with a ventilation gap formed between the outer periphery of the cover plate (14) and the port of the recessed area (110); and The valve plate (15) can open and close the aforementioned air inlet hole (113). The valve plate (15) is bowl-shaped and has an upwardly protruding connecting column (151) in the middle. The connecting column (151) is arranged from bottom to top in the aforementioned connecting hole (112) and has a pressure relief hole (152) in the middle. A pressure relief valve is arranged in the pressure relief hole (152); when the cup body is in a normal pressure state, the valve plate (15) turns upward to cover the aforementioned air inlet hole (113); when the cup body is in a negative pressure state, the valve plate (15) turns downward to open the aforementioned air inlet hole (113).

2. The cup cover capable of air intake and pressure relief according to claim 1, characterized in that The lower end surface of the cover plate (14) has a boss (142) facing the aforementioned connecting hole (112), and the aforementioned boss (142) is concave to form a mounting cavity. The pressure relief valve includes a compression spring (16) and a plug (17). The aforementioned compression spring (16) is arranged in the mounting cavity, and the aforementioned plug (17) is placed on the pressure relief hole (152) and abuts against the compression spring (16).

3. The cup cover capable of air intake and pressure relief according to claim 1, characterized in that The cover body includes an inner cover (12), an outer cover (11) and an inner lining ring (13). The inner cover (12) is annular. The outer cover (11) is arranged on the outside of the inner cover (12) and has the recessed area (110). The outer cover (11) is located at the end of the recessed area (110) and has an assembly hole (111). The inner lining ring (13) is arranged on the lower end surface of the inner cover (12). The inner ring of the inner lining ring (13) has an extension portion (131) connected to the assembly hole (111).

4. The cup cover capable of air intake and pressure relief according to claim 3, characterized in that The inner ring of the inner cover (12) has an internal thread (121) that cooperates with the cup body to open and close.

5. The cup cover capable of air intake and pressure relief according to claim 3, characterized in that The outer periphery of the cover plate (14) has an extension portion (141), the extension portion (141) is adapted to the upper edge of the assembly hole (111), and the extension portion (131) is adapted to the lower edge of the assembly hole (111).

6. The cup cover capable of air intake and pressure relief according to claim 5, characterized in that There are at least two assembly holes (111) arranged at intervals, and correspondingly, there are at least two extension portions (131) arranged at intervals, and there are at least two elongated portions (141) arranged at intervals.

7. An extraction cup, comprising a cup body and a cup cover provided on the cup body, characterized in that The cup cover is the cup cover capable of air intake and pressure relief as claimed in any one of claims 1 to 6.

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