Milk tea cup cover with thermal expansion and overflow prevention function

Abstract

The utility model relates to a cup cover, in particular to a milk tea cup cover with a heat expansion and overflow prevention function, which comprises a cover body, a thin-wall circular truncated cone structure, a groove arranged at the upper end of the cover body, an opening structure arranged at one end of the groove to form a sipping opening, a large straw hole and a small straw hole axially arranged on the inner bottom surface of the groove, and the small straw hole is close to the sipping opening. A diaphragm for sealing is arranged in the large suction pipe hole, and an air hole for discharging water vapor is formed in the diaphragm; the shape of the turning cover is matched with that of the groove, one end of the turning cover is rotationally arranged in the groove so as to be embedded into the groove to cover the large straw hole and the small straw hole, a blocking protrusion used for blocking the small straw hole is arranged on the turning cover, and an exhaust hole matched with the air hole to exhaust water vapor is formed in the turning cover. According to the design, the big and small straw holes in the groove are covered through the flip cover, the diaphragm seals the big straw hole, the anti-overflow and anti-leakage functions are achieved, the air hole is matched with the exhaust hole to exhaust water vapor, the internal and external pressure difference of the cup body tends to be consistent, and thermal expansion of the cup body can be effectively prevented.

Description

Technical Field

[0001] The utility model relates to a cup cover, in particular to a milk tea cup cover with the function of preventing thermal expansion and leakage. Background Art

[0002] Milk tea cup is a general term for cup-shaped containers for holding hot milk tea, hot coffee, hot soup, cold drinks or room temperature drinks; hot milk tea, hot coffee and hot soup are referred to as hot drinks hereinafter; the lid of the closed milk tea cup is called the milk tea cup lid; hotels, restaurants and fast food factories widely use milk tea cups to hold hot drinks and deliver them to customers by express order.

[0003] After the milk tea cup lid of the prior art closes the milk tea cup containing hot beverage, due to the effect of thermal expansion, the pressure difference inside and outside the closed milk tea cup increases, and the thermally expanded gas in the cup will open the joint between the milk tea cup and the milk tea cup lid, causing the hot beverage to overflow along the joint between the milk tea cup and the milk tea cup lid along with the thermally expanded gas, especially when the food is delivered to the customer through the bumpy express delivery, making the fast food takeout look filthy and causing customer complaints. Utility Model Content

[0004] The utility model aims to solve the above defects and provides a milk tea cup cover with the function of preventing thermal expansion and leakage.

[0005] In order to overcome the defects existing in the background technology, the technical solution adopted by the utility model to solve the technical problem is: a milk tea cup cover with a function of preventing thermal expansion and leakage, comprising a cover body, a thin-walled truncated cone structure, a groove is provided at the upper end, one end of the groove is an open structure to form a sipping mouth, a large straw hole and a small straw hole are axially provided on the inner bottom surface of the groove, the small straw hole is close to the sipping mouth, a diaphragm for sealing is provided in the large straw hole, and an air hole for discharging water vapor is provided on the diaphragm;

[0006] The flip cover is matched with the shape of the groove, and one end is rotatably arranged in the groove and then embedded in the groove to cover the large straw hole and the small straw hole. The flip cover is provided with a blocking protrusion for blocking the small straw hole, and the flip cover is provided with an exhaust hole that cooperates with the air hole to discharge water vapor.

[0007] A further improvement includes the air hole being located at the center of the diaphragm.

[0008] A further improvement includes providing a bendable folded edge on the flip cover so that the flip cover is divided into a section A for covering the large straw hole and a section B for covering the small straw hole, and the blocking protrusion is located on the section B and the exhaust hole is located on the section A.

[0009] Further improvements include that the covering area of the sub - part A is a low bottom surface, the covering area of the sub - part B is a high bottom surface, and the distance from the low bottom surface to the top surface of the cover is greater than the distance from the high bottom surface to the top surface of the cover. The folded edge is located at the junction of the high bottom surface and the low bottom surface, and both the high bottom surface and the low bottom surface are the bottom surfaces of the groove.

[0010] Further improvements include that a sealing protrusion is formed by the sub - part B denting towards the side of the small straw hole, the sealing protrusion is embedded in the small straw hole, a buckling protrusion is formed by the sub - part A denting towards the side opposite to the large straw hole, and the sub - part B is rotated to make the buckling protrusion embedded in the dented side of the sealing protrusion.

[0011] Further improvements include that a cavity boss matching the large straw hole is formed by the sub - part A denting towards the side opposite to the large straw hole, and the exhaust hole is located on the cavity boss.

[0012] Further improvements include that a boss fence with a boss structure is formed at the upper end of the cover, and the groove is located on the boss fence.

[0013] Further improvements include that rotating shafts are oppositely arranged on the side surface of one end of the flip - cover, and the rotating shafts are snapped into the connecting - shaft card slots oppositely opened on the inner side wall of the groove so that one end of the flip - cover rotates in the groove.

[0014] The beneficial effects of the present utility model are as follows: In this design, the flip - cover covers the large straw hole and the small straw hole in the groove. While blocking the small straw hole, the diaphragm seals the large straw hole, thus playing a role in preventing overflow and leakage. The air hole and the exhaust hole cooperate to discharge water vapor, making the pressure difference inside and outside the cup body tend to be consistent, which can effectively prevent the cup body from expanding due to heat. This design is simple and convenient to operate and can be stacked in multiple layers. Description of the Drawings

[0015] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0016] Figure 1 is the top view of the cover in the present utility model;

[0017] Figure 2 is Figure 1 the A - A cross - sectional view in

[0018] Figure 3 is the top view of the flip - cover in the present utility model;

[0019] Figure 4 is Figure 3 the B - B cross - sectional view in

[0020] In the figure: 1 - lid body, 2 - small straw hole, 3 - high bottom surface, 4 - air hole, 5 - diaphragm, 6 - low bottom surface, 7 - groove, 8 - large straw hole, 9 - coupling card slot, 10 - boss fence, 11 - flip cover part A, 12 - cavity boss, 13 - exhaust hole, 14 - snap projection, 15 - hem, 16 - sealing projection, 17 - rotating shaft, 18 - flip cover part B, 19 - flip cover. Detailed implementation mode

[0021] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art without creative efforts based on the embodiments in the present utility model belong to the scope of protection of the present utility model.

[0022] According to Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a milk tea cup lid with a function of preventing thermal expansion and overflow includes a lid body 1, which is a thin-walled frustum structure and is covered on the cup body. A groove 7 is opened at the upper end. One end of the groove 7 is an open structure to form a sipping port for the user to drink directly by putting the mouth against it. A large straw hole 8 for inserting a large straw for drinking and a small straw hole 2 for inserting a small straw or for direct drinking are axially opened on the inner bottom surface of the groove 7. The small straw hole 2 is close to the sipping port, and the tea drink flowing out of the small straw hole 2 can be directly drunk through the sipping port. A diaphragm 5 for sealing is provided in the large straw hole 8, and air holes 4 for discharging water vapor are opened on the diaphragm 5. This design facilitates the penetration of water vapor. The diaphragm 5 has a certain role in buffering thermal expansion. Further, the air holes 4 are located at the center of the diaphragm 5. Opening the air holes 4 facilitates the penetration of the tip of the straw, thereby reducing the difficulty of piercing. Moreover, the diaphragm 5 also plays a role in preventing overflow for the large straw hole 8, avoiding the liquid in the cup body from spilling out of the large straw hole 8 when the cup body shakes. The air holes 4 are small, and it is not easy for the liquid to spill out of the air holes 4 when the cup body shakes. And the groove 7 plays a certain role in preventing leakage and overflow;

[0023] A flip cover 19, which fits the shape of the groove 7. One end is rotatably arranged in the groove 7 and then embedded in the groove 7 to cover the large straw hole 8 and the small straw hole 2. A sealing projection 16 for blocking the small straw hole 2 is provided on the flip cover 19 to avoid the liquid in the cup body from spilling out through the small straw hole 2. An exhaust hole 13 for discharging water vapor in cooperation with the air holes 4 is opened on the flip cover 19 to ensure that the pressure difference inside and outside the cup body is the same and avoid the cup body from swelling due to high temperature.

[0024] The flip cover 19 is provided with a bendable hem 15, so that the flip cover 19 is divided into a part A11 for covering the large straw hole 8 and a part B18 for covering the small straw hole 2. The blocking protrusion 16 is located on the part B18, and the exhaust hole 13 is located on the part A11. The part A11 and the part B18 can be bent through the hem 15. When drinking with the small straw or drinking through the sipping port, only the part B18 needs to be folded to open the small straw hole 2. When using the large straw, the part A11 is opened again.

[0025] The covering area of the part A11 is the low bottom surface 6, and the covering area of the part B18 is the high bottom surface 3. The distance from the low bottom surface 6 to the top surface of the cover body 1 is greater than the distance from the high bottom surface 3 to the top surface of the cover body 1. The hem 15 is located at the junction of the high bottom surface 3 and the low bottom surface 6. Both the high bottom surface 3 and the low bottom surface 6 are the bottom surfaces of the groove 7. Due to the height difference between the high bottom surface 3 and the low bottom surface 6, the liquid overflowing from the small straw hole 2 or the air hole 4 flows into the receiving groove formed by the low bottom surface 6 and then flows back into the cup body through the air hole 4.

[0026] A blocking protrusion 16 is recessed on the part B18 toward the small straw hole 2. The blocking protrusion 16 is inserted into the small straw hole 2 for sealing to prevent the liquid in the cup from spilling out. A buckling protrusion 14 is recessed on the part A11 toward the side opposite to the large straw hole 8. The part B18 is rotated so that the buckling protrusion 14 is inserted into the recessed side of the blocking protrusion 16 to achieve buckling, avoiding that the part B18 will hinder the user from drinking when the user drinks through the sipping port.

[0027] A cavity boss 12 matching the large straw hole 8 is recessed on the part A11 toward the side opposite to the large straw hole 8. The exhaust hole 13 is located on the cavity boss 12. The internal space of the cavity boss 12 is communicated with the air hole 4. The water vapor discharged from the air hole 4 enters the cavity boss 12 and is then discharged from the exhaust hole 13. This design effectively solves the problem that when the pressure difference inside and outside the cup is inconsistent, the diaphragm 5 bulges and adheres to the flip cover 19, resulting in the inability of the water vapor to be discharged outward through the air hole 4.

[0028] A boss fence 10 with a boss structure is formed at the upper end of the cover body 1, and the groove 7 is located on the boss fence 10.

[0029] Rotating shafts 17 are oppositely arranged on the side surface of one end of the flip cover 19. The rotating shafts 17 are clamped into the coaxial card slots 9 oppositely opened on the inner side wall of the groove 7, so that one end of the flip cover 19 rotates in the groove 7. The flip cover 19 is embedded in the groove 7. This structure is beneficial to prevent liquid leakage.

[0030] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present utility model.

Claims

1. A milk tea cup cover with anti-heat expansion and leakage function, characterized in that: The invention comprises a cover body (1) with a thin-walled truncated cone structure, a groove (7) being provided at the upper end, one end of the groove (7) being an open structure so as to form a drinking opening, a large straw hole (8) and a small straw hole (2) being axially provided on the inner bottom surface of the groove (7), the small straw hole (2) being close to the drinking opening, a diaphragm (5) for sealing being provided in the large straw hole (8), and an air hole (4) for discharging water vapor being provided on the diaphragm (5); The flip cover (19) is matched with the shape of the groove (7), one end of which is rotatably arranged in the groove (7) and then embedded in the groove (7) to cover the large straw hole (8) and the small straw hole (2). The flip cover (19) is provided with a blocking protrusion (16) for blocking the small straw hole (2), and the flip cover (19) is provided with an exhaust hole (13) for cooperating with the air hole (4) to exhaust water vapor.

2. The milk tea cup cover with anti-thermal expansion and leakage function as claimed in claim 1, characterized in that: The pore (4) is located at the center of the diaphragm (5).

3. The milk tea cup cover with anti-thermal expansion and leakage function as claimed in claim 1, characterized in that: The flip cover (19) is provided with a bendable folded edge (15) so that the flip cover (19) is divided into a section A (11) for covering the large straw hole (8) and a section B (18) for covering the small straw hole (2), and the blocking protrusion (16) is located on the section B (18), and the exhaust hole (13) is located on the section A (11).

4. The milk tea cup cover with anti-heat expansion and leakage function as claimed in claim 3, characterized in that: The coverage area of ​​the section A (11) is the low bottom surface (6), the coverage area of ​​the section B (18) is the high bottom surface (3), and the distance between the low bottom surface (6) and the top surface of the cover body (1) is greater than the distance between the high bottom surface (3) and the top surface of the cover body (1), the folded edge (15) is located at the junction of the high bottom surface (3) and the low bottom surface (6), and the high bottom surface (3) and the low bottom surface (6) are both the bottom surfaces of the groove (7).

5. The milk tea cup cover with anti-heat expansion and leakage function as claimed in claim 4, characterized in that: The section B (18) is recessed toward one side of the small straw hole (2) to form a blocking protrusion (16), and the blocking protrusion (16) is embedded in the small straw hole (2). The section A (11) is recessed toward the side opposite to the large straw hole (8) to form a buckling protrusion (14), and the section B (18) is rotated so that the buckling protrusion (14) is embedded in one side of the recessed blocking protrusion (16).

6. The milk tea cup cover with anti-heat expansion and leakage function as claimed in claim 3, characterized in that: The section A (11) is recessed on the side opposite to the large straw hole (8) to form a cavity boss (12) matching the large straw hole (8), and the exhaust hole (13) is located on the cavity boss (12).

7. The milk tea cup cover with anti-heat expansion and leakage function as claimed in claim 1, characterized in that: A boss fence (10) of a boss structure is formed at the upper end of the cover body (1), and the groove (7) is located on the boss fence (10).

8. The milk tea cup cover with anti-heat expansion and leakage function as claimed in claim 1, characterized in that: A rotating shaft (17) is disposed opposite to the side surface of one end of the flip cover (19), and the rotating shaft (17) is inserted into a connecting shaft slot (9) opposite to the inner wall of the groove (7) so that one end of the flip cover (19) can rotate in the groove (7).

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