Steam exhaust device for cup cover

Abstract

The present invention discloses a steam exhaust device for a cup lid, comprising a cup lid seat, a cup lid outer cover and a steam cover; wherein: the cup lid seat and the cup lid outer cover enclose a steam exhaust chamber, the cup lid seat is provided with a steam exhaust port connected to the steam exhaust chamber; the steam cover is arranged in the steam exhaust chamber, and has a steam circulation pipe, a bypass airway and a pressure relief valve, the steam circulation pipe is used to connect the steam exhaust port; the bypass airway is provided with an opening connected to the steam exhaust chamber; the pressure relief valve is arranged in a limited space where the steam circulation pipe is connected to the bypass airway, so as to control the internal air pressure of the cup lid seat; the present invention proposes a steam exhaust device for a cup lid, aiming to improve the reliability and stability of steam exhaust and solve the problem of water leakage at the same time.

Description

Technical Field

[0001] The present application relates to a cup cover, and in particular to a steam exhaust device of the cup cover. Background Art

[0002] Heating containers are a common type of electrical appliance, including electric cups, car heating cups, rice cookers, etc. With the increasing level of science and technology, heating cups are being used more and more widely. In addition to boiling water, heating cups can also be used to make coffee, milk, instant noodles, etc. They combine the functions of ordinary cups and electric kettles, are very convenient and fast, and fully adapt to the fast-paced lifestyle of most people in today's society.

[0003] Cup lids on the market generally use direct through holes for venting when boiling water. Such cup lids will leak when the cup is filled with cold water or warm water. Some cup lids have no through holes and cannot vent air normally, which not only makes it difficult to open the lid of the heated cup after the liquid cools down, but also poses a safety hazard when boiling water. Summary of the invention

[0004] The present invention mainly aims at the above problems and proposes a steam exhaust device for a cup cover, aiming to improve the reliability and stability of steam exhaust and solve the problem of water leakage at the same time.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] The present invention provides a steam exhaust device for a cup cover, comprising a cup cover seat, a cup cover outer cover and a steam cover; wherein:

[0007] The cup cover seat and the cup cover outer cover enclose a steam discharge cavity, and the cup cover seat is provided with a steam discharge port connected to the steam discharge cavity;

[0008] The steam hood is arranged in the steam discharge chamber, and has a steam circulation pipe, a bypass air duct and a pressure relief valve. The steam circulation pipe is used to connect with the steam discharge port; the bypass air duct is provided with an opening that leads to the steam discharge chamber; the pressure relief valve is arranged in the limited space where the steam circulation pipe and the bypass air duct are connected, so as to control the internal air pressure of the cup cover seat.

[0009] As an improvement of the steam discharge device of a cup lid of the present invention, the pressure relief valve is a temperature control spring, and the temperature control spring has an elastic portion and a mounting portion, wherein the elastic portion includes two states: concave and convex. In the concave state, the top end surface of the steam circulation pipe is sealed with the protruding surface of the temperature control spring; in the convex state, the top end surface of the steam circulation pipe opens and closes with the protruding surface of the temperature control spring, so that the steam circulation pipe is connected with the bypass air duct.

[0010] As an improvement of the steam exhaust device of a cup cover of the present invention, a movable connection part is provided on one side enclosed by the cup cover seat and the cup cover outer cover, so that the cup cover outer cover can rotate in the vertical direction relative to the cup cover seat.

[0011] As an improvement to the steam exhaust device of a cup lid of the present invention, the cross-section of the steam hood has a U-shaped groove with an opening in the middle, the steam circulation pipe is arranged at the opening, extends in the groove, and is integrally formed with the steam hood, and a temperature control bracket is arranged at the upper end of the steam circulation pipe to form a limiting space for installing a temperature control spring and a bypass air duct.

[0012] As an improvement of the steam exhaust device of a cup cover of the present invention, a protrusion is provided on the inner side wall of the cup cover outer cover corresponding to the position of the U-shaped groove of the steam cover, the interior of which encloses a sealed cavity for installing circuit components and the exterior forms a connecting portion for installing the steam cover.

[0013] As an improvement of the steam exhaust device of the cup cover of the present invention, the cup cover seat has a first connecting portion, and the first connecting portion is used for threaded connection with the cup body.

[0014] As an improvement of the steam exhaust device of a cup cover of the present invention, the cup cover seat has a second connecting portion, and a sealing ring is arranged on the inner side wall of the second connecting portion corresponding to the position of the cup mouth.

[0015] As an improvement of the steam exhaust device of a cup cover of the present invention, the cup cover seat also has a third connecting part, one end of the third connecting part and the outer wall are connected to the second connecting part, and the other end extends outward along the rotation direction of the steam cover to form an inclined arc flow channel, and the steam exhaust port is arranged on the arc flow channel.

[0016] As an improvement of the steam exhaust device of a cup lid of the present invention, the cup lid seat is an elastomer, a clamping portion is provided at the end of the extended arc-shaped flow channel, a bayonet matching the clamping portion is provided at the opening and closing end of the cup lid outer cover, so that the cup lid outer cover is snap-connected with the cup lid seat, and a switch button for separating the clamping portion from the bayonet is provided on the outer wall of the first connecting portion.

[0017] As an improvement of the steam exhaust device of the cup cover of the present invention, the steam cover is made of silica gel.

[0018] According to the above technical scheme, it can be known that the steam exhaust device of the cup cover proposed by the present invention has the following beneficial effects compared with the prior art: the present invention adopts a metal temperature control spring to be fixed on the temperature control bracket, and is compressed and sealed with the steam cover made of silicone material. When the cup generates high-temperature steam when boiling water, the temperature control spring begins to deform due to the influence of temperature. At this time, the temperature control spring changes from the original compressed and sealed state to the developed state, and the steam is discharged from this gap, thereby reducing the pressure in the cup and achieving the effect of safe pressure relief. Other beneficial effects of the present invention are further explained in the specific implementation method. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the top view of the cup cover and cup body.

[0020] Figure 2 for Figure 1 Right view of .

[0021] Figure 3 for Figure 1 Cross-sectional view at AA in the middle.

[0022] Figure 4 This is a schematic diagram of the internal structure of the cup lid of this application.

[0023] Figure 5 Schematic diagram of the structure of the steam hood.

[0024] Figure 6 Schematic diagram of the deformation structure of the temperature control spring.

[0025] Reference numerals shown in the figures:

[0026] 100, cup cover seat; 10, movable connection part; 11, sealing ring; 12, switch button; 101, steam discharge chamber; 102, steam discharge port; 103, first connection part; 104, second connection part; 105, third connection part; 106, arc flow channel; 107, clamping part;

[0027] 200, cup cover; 20, protrusion; 201, sealing cavity; 202, bayonet;

[0028] 300, steam hood; 30, steam circulation pipe; 31, bypass airway; 32, temperature control spring; 33, temperature control bracket; 301, limited space; 302, opening; 310, opening; 320, elastic part; 321, mounting part;

[0029] 400. Cup body. DETAILED DESCRIPTION

[0030] The present invention is further described in detail below by specific embodiments in conjunction with the accompanying drawings. Wherein similar elements in different embodiments adopt associated similar element numbers. In the following embodiments, many detailed descriptions are for making the present application better understood. However, those skilled in the art can easily recognize that some features can be omitted in different situations, or can be replaced by other elements, materials, methods. In some cases, some operations related to the present application are not shown or described in the specification, this is to avoid the core part of the present application being overwhelmed by too much description, and for those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations according to the description in the specification and the general technical knowledge in the art.

[0031] The serial numbers of the components in this document, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings).

[0032] Embodiment 1:

[0033] The present invention is about the technology of regulating the internal pressure steam discharge device of the cup cover and the cup body 400. For details, please refer to Figure 1-Figure 6 As shown, this embodiment provides a steam exhaust device for a cup lid, and the cup lid is composed of a cup lid outer cover 200, a cup lid seat 100, a steam cover 300, a metal temperature control spring 32, a temperature control bracket 33, and a switch button 12; wherein, the cup lid seat 100 and the cup lid outer cover 200 enclose a steam exhaust cavity 101, and the cup lid seat 100 is provided with a steam exhaust port 102 connected to the steam exhaust cavity 101, and an air outlet hole (not shown) connected to the external environment is provided in the steam exhaust port 102, so that the steam in the cup body 400 is discharged from the steam exhaust cavity 101 to the external environment.

[0034] The steam cover 300 is made of silicone, which can improve the service life and safety level and increase the sealing effect due to its softness, non-toxicity and high temperature resistance. Figure 4 , Figure 5 As shown, the cross-section of the steam cover 300 made of silicone material is roughly a U-shaped groove structure with a central opening 302. The inner wall of the cup lid outer cover 200 is provided with a protrusion 20 corresponding to the position of the U-shaped groove of the steam cover 300. At the same time, the interior thereof encloses a sealed cavity 201 for installing circuit components, and the outside forms a connecting portion for installing the steam cover 200, so that the steam cover 200 is installed outside the protrusion 20 extending from the inner side of the cup lid outer cover 200, so that it can be replaced in case of poor sealing effect or poor exhaust.

[0035] The steam hood 300 is arranged in the steam discharge chamber 101, and has a steam circulation pipe 30, a bypass air channel 31 and a pressure relief valve. The steam circulation pipe 30 is used to connect to the steam discharge port 102; the bypass air channel 31 is provided with an opening 310 that is connected to the steam discharge chamber 101; the pressure relief valve is arranged in a limited space 301 where the steam circulation pipe 30 and the bypass air channel 31 are connected, so as to control the internal air pressure of the cup cover seat 100.

[0036] The pressure relief valve of this implementation is Figure 6 The metal temperature control spring 32 shown in the figure comprises an elastic part 320 and a mounting part 321, wherein the mounting part 321 is placed on the temperature control bracket 33 by welding or other fixing methods; when the cup is boiling water, the elastic part 320 has two states, namely, an inner concave state and an outer convex state, due to the change in temperature. In the inner concave state, the top end surface of the steam circulation pipe 30 is sealed with the protruding surface of the temperature control spring 32; in the outer convex state, the top end surface of the steam circulation pipe 30 is opened and closed with the protruding surface of the temperature control spring 32, so that the steam circulation pipe 30 is connected with the bypass air duct 31.

[0037] Specifically, for example, when the water temperature is greater than 80 degrees, the metal temperature control spring 32 begins to deform and rebound to the reverse side due to the influence of temperature. At this time, the metal temperature control spring 32 changes from the original compressed and sealed state to the developed state, and the steam is discharged into the bypass air duct 31 from the gap in the limited space 301. Part of it becomes condensed water and accumulates in the bypass air duct 31, and the other part flows into the steam discharge chamber 101 from the opening 310 and is finally discharged to the outside, thereby reducing the pressure in the cup and achieving the effect of safe pressure relief. At the same time, high-temperature condensed water is accumulated in the bypass air duct 31, which can prevent the user from throwing out the condensed water and scalding people when opening the lid due to excessive speed.

[0038] As a further preferred embodiment of the above embodiment, the cup cover seat 100 has a first connecting portion 103 and a second connecting portion 104, the first connecting portion 103 is used to threadedly connect the cup body 400, and a sealing ring 11 is arranged on the inner wall of the second connecting portion 104 corresponding to the cup mouth position; it can be understood that the cup cover seat 100 and the cup cover outer cover 200 are connected in an integrated manner, and when in use, the whole is screwed out for the user to drink water or pour water, and when heated, the first connecting portion 103 is threadedly connected to the cup body 400, and the sealing ring 11 can effectively seal the cup mouth.

[0039] Embodiment 2:

[0040] The difference from the first embodiment is that a movable connection part 10 is provided on one side enclosed by the cup cover seat 100 and the cup cover outer cover 200 in the second embodiment, so that the cup cover outer cover 200 can rotate in the vertical direction relative to the cup cover seat 100 .

[0041] As a further preferred embodiment of the above embodiment, the cup cover seat 100 also has a third connecting portion 105, one end of the third connecting portion 105 and the outer wall are connected to the second connecting portion 104, and the other end extends outward along the rotation direction of the steam cover 300 to form an inclined arc flow channel 106, and the steam exhaust port 102 is arranged on the arc flow channel 106.

[0042] Preferably, the cup cover seat 100 is elastic, a clamping portion 107 is provided at the end of the extended arc-shaped flow channel 106, a bayonet 202 cooperating with the clamping portion 107 is provided at the opening and closing end of the cup cover outer cover 200, so that the cup cover outer cover 200 and the cup cover seat 100 are snap-connected after closing, and a switch button 12 for separating the clamping portion 107 from the bayonet 202 is provided on the outer wall of the first connecting portion 103.

[0043] In this embodiment, after heating the water, the user can manually press the switch button 12. Since the cover base 100 is elastic, after applying force, the third connecting portion 105 will be deformed, so that the clamping portion 107 will be disengaged from the clamping port 202. The cup cover 200 is automatically opened by setting a torsion spring or opened manually. During the opening process, the steam cover 300 made of silicone material moves out along the arc flow channel 106. The inclined arc flow channel 106 can drain the heating medium and facilitate the residual medium to flow back to the cup body 400. After use, rotate the cup cover 200 until a "click" sound is heard, and the locking state is completed. At this time, the semicircular surface of the steam cover 300 and the cup cover base 100 are in a compressed and sealed state after the cover is closed, and the steam discharge port 102 is connected to the opening 302.

[0044] The present technical invention is not limited to the above-mentioned implementation modes, and all solutions mentioned in the specification fall within the protection scope of the present invention.

[0045] The above specific examples are used to illustrate the present invention, which is only used to help understand the present invention and is not intended to limit the present invention. For those skilled in the art, according to the concept of the present invention, some simple deductions, modifications or substitutions can be made.

Claims

1. A steam exhaust device for a cup cover, characterized in that: It includes a cup cover seat, a cup cover outer cover and a steam cover; wherein: The cup cover seat and the cup cover outer cover enclose a steam discharge cavity, and the cup cover seat is provided with a steam discharge port connected to the steam discharge cavity; The steam hood is arranged in the steam discharge chamber, and has a steam flow pipe, a bypass airway and a pressure relief valve. The steam flow pipe is used to connect with the steam discharge port; the bypass airway is provided with an opening that leads to the steam discharge chamber; the pressure relief valve is arranged in a limited space where the steam flow pipe and the bypass airway are connected, so as to control the internal air pressure of the cup cover seat; The pressure relief valve is a temperature control spring, which has an elastic part and a mounting part, wherein the elastic part includes two states: concave and convex. In the concave state, the top end surface of the steam flow pipe is sealed with the protruding surface of the temperature control spring; in the convex state, the top end surface of the steam flow pipe opens and closes with the protruding surface of the temperature control spring, so that the steam flow pipe is connected with the bypass airway. A movable connection portion is provided on one side surrounded by the cup cover seat and the cup cover outer cover, so that the cup cover outer cover can rotate in a vertical direction relative to the cup cover seat; The cross section of the steam hood has a U-shaped groove with an opening in the middle. The steam circulation pipe is arranged at the opening, extends in the groove, and is integrally formed with the steam hood. A temperature control bracket is arranged at the upper end of the steam circulation pipe to form a limiting space for installing a temperature control spring and a bypass air duct.

2. The steam exhaust device of a cup cover according to claim 1, characterized in that: A protrusion is provided on the inner side wall of the cup cover outer cover at a position corresponding to the U-shaped notch of the steam cover, the interior of which encloses a sealed cavity for installing circuit components, and the exterior forms a connecting portion for installing the steam cover.

3. The steam exhaust device of a cup cover according to claim 1 or 2, characterized in that: The cup cover seat has a first connecting portion, and the first connecting portion is used for threaded connection with the cup body.

4. The steam exhaust device of a cup cover according to claim 3, characterized in that: The cup cover seat has a second connecting portion, and a sealing ring is arranged on the inner side wall of the second connecting portion corresponding to the position of the cup mouth.

5. The steam exhaust device of a cup cover according to claim 4, characterized in that: The cup cover seat also has a third connection part, one end of the third connection part and the outer wall are connected to the second connection part, and the other end extends outward along the rotation direction of the steam cover to form an inclined arc flow channel, and the steam discharge port is arranged on the arc flow channel.

6. The steam exhaust device of a cup cover according to claim 5, characterized in that: The cup cover seat is an elastic body, a clamping portion is arranged at the end of the extended arc-shaped flow channel, a bayonet matching the clamping portion is arranged at the opening and closing end of the cup cover outer cover, so that the cup cover outer cover is snap-connected with the cup cover seat, and a switch button for separating the clamping portion from the bayonet is arranged on the outer wall of the first connecting portion.

7. The steam exhaust device of a cup cover according to any one of claims 4 to 6, characterized in that: The steam cover is made of silica gel material.

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