Cup cover with automatic pressure relief function and electric heating cup with cup cover

Abstract

The utility model discloses a cup cover with an automatic pressure relief function and an electric heating cup with the cup cover, and relates to the technical field of electric heating cups. The middle part of the lower cover is provided with an air hole; the upper cover is detachably installed at the top end of the lower cover, and exhaust holes are formed in the positions, corresponding to the air holes, of the upper cover; the supporting seat is detachably mounted between the upper cover and the lower cover, a pressure release valve assembly mounting hole communicating with the air hole and the exhaust hole is formed in the middle of the supporting seat, and a pressure release hole communicating with the air hole and the exhaust hole is formed in the peripheral side, corresponding to the pressure release valve assembly mounting hole, of the supporting seat; the waterproof breathable film is installed at the position, corresponding to the pressure relief hole, of the bottom of the supporting base; and the pressure release valve assembly is detachably mounted in the pressure release valve assembly mounting hole. According to the electric heating cup, air can be exhausted outwards through the waterproof breathable film and the pressure release valve assembly, the dual pressure release effect is achieved, the pressure release capacity is improved, and the safety performance of the electric heating cup during heating is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric heating cup technical field, more specifically, it relates to a cup cover with automatic pressure relief function and electric heating cup with same. BACKGROUND

[0002] With the improvement of people's living standards, people hope to drink a mouthful of safe hot water at any time whether at home or at work, or on a business trip or travel, so various electric heating vacuum cups have emerged on the market, although these electric heating vacuum cups emphasize that users must open the cover to boil water when using, but for some careless customers, such electric heating vacuum cups still bring great safety hazards, because if the user closes the cover to boil water, the boiling process will form a large air pressure in the closed space in the cup, which will cause the cup to explode and burn the user due to excessive air pressure.

[0003] Therefore, how to provide a cup cover with automatic pressure relief function and electric heating cup with same with high safety performance is a problem that those skilled in the art need to solve. SUMMARY

[0004] Therefore, the utility model aims at providing a cup cover with automatic pressure relief function and electric heating cup with same to at least solve the technical problem of safety hazards caused by air pressure rising when the electric heating cup heats in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A cup cover with automatic pressure relief function comprises:

[0007] A lower cover is provided with a gas permeable hole in the middle;

[0008] An upper cover is detachably installed at the top end of the lower cover and is provided with an exhaust hole corresponding to the gas permeable hole;

[0009] A support seat is detachably installed between the upper cover and the lower cover and is provided with a pressure relief valve assembly mounting hole in the middle, which communicates with the gas permeable hole and the exhaust hole, and a pressure relief hole corresponding to the outer peripheral side of the pressure relief valve assembly mounting hole, which communicates with the gas permeable hole and the exhaust hole;

[0010] A waterproof and breathable film is installed at the bottom of the support seat corresponding to the pressure relief hole;

[0011] A pressure relief valve assembly is detachably installed in the pressure relief valve assembly mounting hole.

[0012] The beneficial effects that the utility model can achieve are: when the air pressure in the cup is too high during heating, the gas in the cup passes through the waterproof breathable membrane and is discharged from the exhaust hole; when the pores of the waterproof breathable membrane are blocked by water molecules in the steam due to continuous heating, the air is discharged to the exhaust hole through the pressure relief valve assembly, which plays a dual pressure relief role, improves the pressure relief capacity, and enhances the safety performance of the electric heating cup during heating.

[0013] Furthermore, a snap ring is formed on the inner wall surface of the top of the lower cover corresponding to the outer peripheral side of the air vent, and a snap ring groove is provided at the bottom of the support seat to fit and snap with the snap ring.

[0014] Furthermore, a lower sealing ring is installed in the snap ring groove and is sealed with the snap ring.

[0015] Furthermore, a support ring is fixed on the outer peripheral side of the exhaust hole corresponding to the top of the support seat, and the top of the support ring abuts against the bottom of the upper cover to form an air circulation cavity on the inner ring side of the support ring, and the pressure relief valve assembly mounting hole, the pressure relief hole and the exhaust hole are all connected to the air circulation cavity.

[0016] Furthermore, a sealing groove is provided on the top of the support ring, and an upper sealing ring sealed with the upper cover is installed in the sealing groove.

[0017] Furthermore, the pressure relief valve assembly includes a valve cover and a spring. The valve cover is arranged at the mounting hole of the pressure relief valve assembly, and there is a gap between its top end and the upper cover. The top end of the spring is connected to the upper cover, and the bottom end is connected to the valve cover to drive the valve cover to slide along the axial direction of the mounting hole of the pressure relief valve assembly to open or close.

[0018] Furthermore, it also includes an upper cover connecting component, which includes a plurality of hooks and a plurality of blocks. The plurality of hooks are fixed at circumferential intervals on the bottom of the upper cover corresponding to the outer peripheral side of the support seat. The plurality of blocks correspond one-to-one with the plurality of hooks and are fixed on the top of the lower cover, and each of the blocks is engaged with the corresponding hook.

[0019] Furthermore, it also includes an outer cover, which is arranged on the outside of the upper cover and has a lower end detachably connected to the lower cover.

[0020] Furthermore, multiple groups of outer cover connecting components are fixed at evenly spaced intervals around the top of the lower cover, and each group of the outer cover connecting components includes a pressure plate and a limiting protrusion. A limiting slot is provided on the inner side wall of the outer cover, and the pressure plate surface is arranged perpendicular to the lower cover and fixed to the top of the lower cover. The limiting protrusion is fixed on the upper side of the pressure plate away from the center of the lower cover and is engaged with the limiting slot.

[0021] An electric cup comprises a cup body and a cup cover with automatic pressure relief function as described above, and the lower cover covers the top end of the cup body.

[0022] Through the technical scheme, compared with the prior art, the electric cup with the cup cover with automatic pressure relief function can discharge air to the outside through the waterproof and breathable film, reduce the air pressure in the cup body, and when the waterproof and breathable film loses the air permeability, air is discharged to the outside through the pressure relief valve assembly, the device performs pressure relief work through the double protection of the waterproof and breathable film and the pressure relief valve assembly, improves the pressure relief capacity, and strengthens the safety performance of the electric cup during heating, so that safety hazards are avoided. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of the provided drawings.

[0024] Figure 1 A three-dimensional structure schematic diagram of the electric cup is provided.

[0025] Figure 2 A cross-sectional structure schematic diagram of the electric cup is provided.

[0026] Figure 3 A cross-sectional structure schematic diagram of the cup cover with automatic pressure relief function is provided.

[0027] Figure 4 A Figure 3 A structure schematic diagram of part A is provided.

[0028] Figure 5 A Figure 3 A structure schematic diagram of part B is provided.

[0029] Figure 6 A Figure 3 A structure schematic diagram of part C is provided.

[0030] Figure 7 An explosion structure schematic diagram of the cup cover with automatic pressure relief function is provided.

[0031] Figure 8 A lower cover structure schematic diagram is provided.

[0032] In the figure: 1. Lower cover, 11. Air vent, 12. Snap ring, 2. Upper cover, 21. Exhaust hole, 3. Support seat, 31. Pressure relief valve assembly mounting hole, 32. Pressure relief hole, 33. Snap groove, 34. Support ring, 4. Waterproof breathable membrane, 5. Pressure relief valve assembly, 51. Valve cover, 52. Spring, 6. Lower sealing ring, 7. Upper sealing ring, 8. Upper cover connecting assembly, 81. Hook, 82. Block, 9. Outer cover, 91. Limiting slot, 10. Outer cover connecting assembly, 101. Press plate, 102. Limiting protrusion, 100. Cup cover, 200. Cup body, 300. Handle. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention.

[0035] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0036] Example 1:

[0037] See also Figures 1-8 The present invention discloses a cup cover with an automatic pressure relief function, comprising:

[0038] The lower cover 1 has a ventilation hole 11 in the middle;

[0039] The upper cover 2 is detachably mounted on the top of the lower cover 1 and has an exhaust hole 21 corresponding to the air vent 11;

[0040] The support base 3 is detachably mounted between the upper cover 2 and the lower cover 1 , and a pressure relief valve assembly mounting hole 31 is provided in the center thereof, communicating with the air vent 11 and the exhaust hole 21 , and a pressure relief hole 32 is provided on the outer periphery of the pressure relief valve assembly mounting hole 31 , communicating with the air vent 11 and the exhaust hole 21 ;

[0041] The waterproof and breathable membrane 4 is installed at the bottom of the support base 3 corresponding to the pressure relief hole 32;

[0042] The pressure relief valve assembly 5 is detachably mounted in the pressure relief valve assembly mounting hole 31 .

[0043] The beneficial effects that can be achieved by the present invention are as follows: when the air pressure in the cup is too high during heating, the gas in the cup passes through the waterproof breathable membrane 4 and is discharged from the exhaust hole 21; and when the pores of the waterproof breathable membrane are blocked by water molecules in the steam due to continued heating, the air is discharged to the exhaust hole 21 through the pressure relief valve assembly 5, which plays a dual pressure relief role, improves the pressure relief capacity, and enhances the safety performance of the electric heating cup during heating.

[0044] In order to further optimize the above technical solution, a snap ring 12 is formed on the outer peripheral side of the air vent 11 corresponding to the top of the lower cover 1, and a snap ring groove 33 is provided at the bottom of the support base 3 to fit with the snap ring 12, so as to facilitate the disassembly and assembly of the support base 3.

[0045] The top of the lower cover 1 is concave downwardly to form a cup body connecting portion on the outer peripheral side corresponding to the clamping ring 12, and the cup body connecting portion is provided with an external thread.

[0046] In order to further optimize the above technical solution, a lower sealing ring 6 is installed in the snap ring groove 33 and is sealed with the snap ring 12 to enhance the sealing performance between the support base 3 and the lower cover 1.

[0047] The top surface of the lower cover 1 corresponding to the inner ring side of the snap ring 12 is a concave structure with a height gradually decreasing from the center of its side, so that water condensed on the top of the lower cover 1 can flow back into the cup body through the air vent 11.

[0048] In order to further optimize the above technical solution, a support ring 34 is fixed to the outer peripheral side of the exhaust hole 21 at the top of the support seat 3, and the top of the support ring 34 abuts against the bottom of the upper cover 2 to form an air circulation cavity on the inner ring side of the support ring 34 between the support seat 3 and the upper cover 2. The pressure relief valve assembly mounting hole 31, the pressure relief hole 32 and the exhaust hole 21 are all connected to the air circulation cavity, so that the air flowing out from the pressure relief valve assembly 5 or the waterproof breathable membrane 4 can enter the air circulation cavity and finally be discharged through the exhaust hole 21.

[0049] In order to further optimize the above technical solution, a sealing groove is opened on the top of the support ring 34, and an upper sealing ring 7 sealed with the upper cover 2 is installed in the sealing groove to achieve a sealed connection between the support seat 3 and the upper cover 2.

[0050] To further optimize the above technical solution, the pressure relief valve assembly 5 includes a valve cover 51 and a spring 52. The valve cover 51 is positioned over the pressure relief valve assembly mounting hole, with a gap between its top end and the upper cover 2. The spring 52 is connected to the upper cover 2 at its top end and to the valve cover 51 at its bottom end, driving the valve cover 51 to slide axially along the pressure relief valve assembly mounting hole 31 to open or close it. Specifically, a valve cover connecting ring is formed on the outer periphery of the pressure relief valve mounting hole at the top of the support base 3. The bottom of the valve cover 51 has an annular slot that plugs into the valve cover connecting ring. When there is too much water in the cup body, the waterproof breathable membrane 4 is soaked in water and becomes ineffective, or when there is too much condensed water on the surface of the waterproof breathable membrane 4, the air permeability of the waterproof breathable membrane 4 decreases, and the air cannot be discharged in time. At this time, the air pressure inside the cup body will become larger and larger. When the pressure reaches a certain level, the pressure of the air in the cup acting on the valve cover 51 is greater than the elastic force of the spring 52, and the valve cover 51 will be lifted up. At this time, the air is discharged into the air circulation cavity through the pressure relief valve assembly 5 and discharged from the exhaust hole 21, thereby reducing the air pressure inside the cup body, eliminating safety hazards, and ensuring the safety performance of the product.

[0051] In order to further optimize the above technical solution, it also includes an upper cover connecting component 8, which includes multiple hooks 81 and multiple blocks 82. The multiple hooks 81 are fixed at circumferential intervals on the bottom of the upper cover 2 on the outer peripheral side of the corresponding support seat, and the multiple blocks 82 correspond one-to-one to the multiple hooks 81 and are fixed on the top of the lower cover 1. Each block 82 is engaged with the corresponding hook 81, so that the upper cover 2 and the lower cover 1 can be detachably connected, and disassembly and assembly are convenient.

[0052] In order to further optimize the above technical solution, an outer cover 9 is further included. The outer cover 9 is a double-layer structure. The outer cover 9 is arranged on the outside of the upper cover 2 and its lower end is detachably connected to the lower cover 1. After the outer cover 9 is removed, it can be used as a drinking cup. The water in the cup can be poured into the outer cover 9 for convenient drinking.

[0053] To further optimize the above technical solution, multiple sets of outer cover connecting assemblies 10 are fixed to the top of the lower cover 1 at evenly spaced intervals along the circumference. Each set of outer cover connecting assemblies 10 includes a pressure plate 101 and a limiting protrusion 102. A limiting slot 91 is defined on the inner sidewall of the outer cover 9. The pressure plate 101 is arranged perpendicular to the lower cover 1 and fixed to the top of the lower cover 1. The limiting protrusion 102 is fixed to the upper part of the pressure plate 101 on a side away from the center of the lower cover 1 and engages with the limiting slot 91. The edge of the limiting slot 91 is an arcuate surface, and the limiting protrusion 102 is a spherical protrusion. The outer cover 9 is fixed to the lower cover 1 by the engagement of the limiting protrusion 102 with the limiting slot 91, making it easy to use.

[0054] The various structures of the present invention are all detachable, easy to repair and replace, and have good sealing performance, which can effectively prevent water leakage.

[0055] Example 2:

[0056] See also Figure 1-Figure 2 This embodiment provides an electric heating cup, including a cup body 200 and a cup cover 100 with automatic pressure relief function in Example 1. The cup body connecting portion of the lower cover 1 is threadedly connected to the upper end of the cup body 200, and a sealing ring is installed at the connection between the lower cover 1 and the cup body 200. A handle 300 is hinged on the upper part of the cup body 200, making the electric heating cup more portable.

[0057] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Reference can be made to the common and similar parts between the various embodiments. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple, and the relevant parts can be referred to the method description.

[0058] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A cup lid with automatic pressure relief function, characterized in that: include: A lower cover (1), wherein a ventilation hole (11) is provided in the middle of the lower cover (1); An upper cover (2), the upper cover (2) being detachably mounted on the top of the lower cover (1) and having an exhaust hole (21) corresponding to the air vent (11); A support seat (3), the support seat (3) is detachably mounted between the upper cover (2) and the lower cover (1), and a pressure relief valve assembly mounting hole (31) communicating with the air vent (11) and the exhaust hole (21) is provided in the center thereof, and a pressure relief hole (32) communicating with the air vent (11) and the exhaust hole (21) is provided on the outer peripheral side of the pressure relief valve assembly mounting hole (31); A waterproof and breathable membrane (4), the waterproof and breathable membrane (4) being mounted on the bottom of the support seat (3) corresponding to the pressure relief hole (32); A pressure relief valve assembly (5) is detachably mounted in the pressure relief valve assembly mounting hole (31).

2. The cup cover with automatic pressure relief function according to claim 1, characterized in that: A snap ring (12) is formed on the inner wall surface of the top of the lower cover (1) and is convexly formed on the outer peripheral side of the air vent (11), and a snap ring groove (33) adapted to snap into engagement with the snap ring (12) is provided at the bottom of the support seat (3).

3. The cup cover with automatic pressure relief function according to claim 2, characterized in that: A lower sealing ring (6) sealedly connected to the snap ring (12) is installed in the snap ring groove (33).

4. The cup cover with automatic pressure relief function according to claim 1, characterized in that: A support ring (34) is fixed on the outer peripheral side of the top of the support seat (3) corresponding to the exhaust hole (21), and the top of the support ring (34) abuts against the bottom of the upper cover (2) so that an air circulation cavity is formed on the inner ring side of the support ring (34), and the pressure relief valve assembly mounting hole (31), the pressure relief hole (32) and the exhaust hole (21) are all connected to the air circulation cavity.

5. The cup cover with automatic pressure relief function according to claim 4, characterized in that: A sealing groove is provided on the top of the support ring (34), and an upper sealing ring (7) sealedly connected to the upper cover (2) is installed in the sealing groove.

6. The cup cover with automatic pressure relief function according to claim 1, characterized in that: The pressure relief valve assembly (5) comprises a valve cover (51) and a spring (52). The valve cover (51) is arranged at the pressure relief valve assembly mounting hole (31), and a gap is formed between the top end thereof and the upper cover (2). The top end of the spring (52) is connected to the upper cover (2), and the bottom end is connected to the valve cover (51), so as to drive the valve cover (51) to slide along the axial direction of the pressure relief valve assembly mounting hole (31) to open or close.

7. The cup cover with automatic pressure relief function according to claim 1, characterized in that: The invention also includes an upper cover connecting assembly (8), wherein the upper cover connecting assembly (8) includes a plurality of hooks (81) and a plurality of blocks (82), wherein the plurality of hooks (81) are fixed at circumferential intervals on the bottom of the upper cover (2) corresponding to the outer peripheral side of the support seat, and the plurality of blocks (82) correspond one-to-one with the plurality of hooks (81) and are fixed on the top of the lower cover (1), and each of the blocks (82) is engaged with the corresponding hook (81).

8. The cup cover with automatic pressure relief function according to any one of claims 1 to 7, characterized in that: It also includes an outer cover (9), which is arranged outside the upper cover (2) and has a lower end detachably connected to the lower cover (1).

9. The cup cover with automatic pressure relief function according to claim 8, characterized in that: A plurality of groups of outer cover connection assemblies (10) are fixed at even intervals around the top of the lower cover (1), and each group of the outer cover connection assemblies (10) includes a pressure plate (101) and a limiting protrusion (102). A limiting slot (91) is provided on the inner side wall of the outer cover (9). The pressure plate (101) is arranged perpendicular to the lower cover (1) and is fixed to the top of the lower cover (1). The limiting protrusion (102) is fixed to the upper part of the pressure plate (101) on a side away from the center of the lower cover (1) and is engaged with the limiting slot (91).

10. An electric heating cup, characterized in that: It comprises a cup body (200) and a cup cover with automatic pressure relief function according to any one of claims 1 to 9, wherein the lower cover (1) covers the top of the cup body (200).

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