CN112998502B

CN112998502B - Beverage cup

Info

Publication number: CN112998502B
Application number: CN202110342391.5A
Authority: CN
Inventors: 丁椒平; 丁宇凡
Original assignee: Kraftpack Hubei Industrial Co ltd
Current assignee: Kraftpack Hubei Industrial Co ltd
Priority date: 2021-03-30
Filing date: 2021-03-30
Publication date: 2024-01-09
Anticipated expiration: 2041-03-30
Also published as: CN112998502A

Abstract

The invention provides a beverage cup, and belongs to the technical field of disposable beverage containers. It has solved the problem that current environmental protection paper cup can't observe in the cup through the cup body. The beverage cup comprises a cup body, wherein the cup body comprises an upper cup body and a lower cup body, the upper cup body is made of paper materials, the lower cup body is made of transparent materials, a connecting portion which is turned inwards is arranged on the side wall of the bottom of the upper cup body, a connecting groove I is formed between the connecting portion which is turned inwards and the side wall of the upper cup body, a connecting portion II which is turned outwards is arranged on the side wall of the top of the lower cup body, a connecting groove II is formed between the connecting portion II and the side wall of the lower cup body, the connecting portion I is inserted into the connecting groove II, the connecting portion II is inserted into the connecting groove I, a waterproof layer is arranged on the inner wall of the upper cup body, the connecting portion II is welded with the waterproof layer, and the connecting portion I and the connecting portion II are overlapped and form at least four layers of laminated portions with the side wall of the upper cup body and the side wall of the lower cup body. The invention has the advantages of simple structure and ingenious design, reduces the consumption of plastic, ensures the structural stability and environmental protection, and is convenient for observing the inside of the cup body.

Description

Beverage cup

Technical Field

The invention belongs to the technical field of disposable beverage containers, and relates to a beverage cup.

Background

With the widespread use of plastics, environmental pollution problems are also increasing. For this reason, reducing the use of plastics has become a common public knowledge, and paper cups are increasingly used in the market to replace conventional plastic cups in view of this.

However, because the paper plastic cup is made of non-transparent materials, people cannot intuitively observe the condition inside the cup body through the cup body and can only observe through the cup opening. In order to solve the above problems, a method that a person skilled in the art can think is to open an observation port on a paper cup and then fill the observation port with a transparent material, however, if the observation port is simply filled by sticking the transparent material to the side wall of the paper cup, leakage is likely to occur at the sticking position of the observation port and the transparent material due to poor sealing connection effect between the transparent material and the paper cup.

Therefore, the solution in the market at present mainly adopts a double-layer cup structure with an inner transparent plastic cup sleeve and an outer paper cup, such as a windowed transparent paper plastic cup disclosed in Chinese patent application (application number: 201120327033.9), and the solution comprises a paper cup and a transparent plastic cup, wherein the windowed side surface of the paper cup is provided with a windowed transparent plastic cup, and the transparent plastic cup is arranged at the inner side of the paper cup and is adhered with the paper cup, so that people can observe the inner part of the cup through the windowed transparent paper cup. Another example is a paper plastic cup disclosed in chinese patent application (application number: 201520113437.6), which comprises an inner plastic cup, a middle paper cup and an outer plastic film, wherein the bottom of the inner plastic cup is transparent, the middle paper cup is arranged inside the middle paper cup, the middle paper cup is barrel-shaped without bottom, the outer plastic film is fused outside the middle paper cup by ultrasonic wave, so that people can observe the inside of the cup through the bottom. However, the paper plastic cup still needs a large amount of plastic because of the need of a complete plastic cup as an inner cup, which cannot meet the environmental protection requirement, and the observation openings of the two structures are smaller, so that people cannot observe the inside of the cup conveniently.

Disclosure of Invention

The invention aims at solving the problems in the prior art, and provides a beverage cup, which aims at solving the technical problems that: the plastic usage amount of the beverage cup is reduced, and meanwhile, the inside of the beverage cup is convenient to observe.

The aim of the invention can be achieved by the following technical scheme: the utility model provides a beverage cup, includes the cup, its characterized in that, the cup includes cup and lower cup, go up the cup and be the cavity tube-shape that link up from top to bottom and adopt paper material to make, lower cup is the cavity tube-shape that the bottom was sealed, go up the lateral wall of cup bottom and have the connecting portion one of turning over inwards, and form spread groove one between the lateral wall of connecting portion one and the last cup, the lateral wall at lower cup top has the connecting portion two of turning over outwards, and forms spread groove two between connecting portion two and the lateral wall of lower cup, connecting portion one inserts in the spread groove two and connecting portion two inserts in spread groove one, the inner wall of going up the cup has the waterproof layer, lower cup adopts transparent material to make, connecting portion two and waterproof layer welding form sealing connection, connecting portion one and connecting portion two overlap and form at least four layers of lamination portion with the lateral wall of last cup and the lateral wall of lower cup.

The cup body of the beverage cup is composed of an upper cup body and a lower cup body, wherein the upper cup body is made of degradable paper materials, the lower cup body is made of waterproof plastics or other degradable transparent materials, and a cup-shaped whole is formed by welding the waterproof layer on the inner wall of the upper cup body and the lower cup body to contain liquid such as beverage and avoid leakage. Therefore, the use of non-paper materials can be greatly reduced, and people can visually see the inside of the cup through the transparent lower cup body, and the cup is more attractive.

The upper cup body and the lower cup body form a mutual buckling structure through the first connecting part and the second connecting part, so that people can form traction on the lower cup body when holding the upper cup body, the situation that the welding part of the lower cup body and the waterproof layer generates excessive tearing force is avoided, and the sealing stability of the welding part of the lower cup body and the waterproof layer is ensured. The structure of buckling each other of going up the cup and lower cup forms labyrinth waterproof construction, further avoids taking place the seepage, and moreover, buckling each other the structure and forming the range upon range of portion of at least four layers and range upon range of portion is located the middle part of cup roughly, can improve the structural strength of cup circumference by a wide margin, avoids the cup to be pinched flat by the people when holding, and the heat-proof quality of cup can also be improved to the four-layer design of range upon range of portion in addition, makes the people avoid scalding when holding range upon range of portion.

In the beverage cup, the waterproof layer on the inner wall of the upper cup body extends to the side wall of the first connecting portion, and two sides of the second connecting portion are welded with the waterproof layer respectively. Therefore, the welding area of the second connecting part and the waterproof layer can be further increased, and the connection strength and the sealing effect are improved.

In the beverage cup, the waterproof layer is also arranged on the outer wall of the upper cup body and extends to the side wall of the first connecting portion, and the waterproof layer extending to the side wall of the first connecting portion is welded with the adjacent outer wall of the lower cup body. Therefore, the waterproof effect of the upper cup body can be improved, and the connection strength of the upper cup body and the lower cup body can be improved.

In the beverage cup, the waterproof layer is made of the same material as the lower cup body, and the waterproof layer and the lower cup body are made of PLA, PBS or degradable plastics. The waterproof layer and the lower cup body are made of the same material, so that welding between the waterproof layer and the lower cup body is facilitated, the connection strength and stability of the waterproof layer and the lower cup body after welding can be improved, the use of plastics in the beverage cup can be further reduced or completely avoided, and the beverage cup is more environment-friendly and sanitary.

In the beverage cup, the upper cup body and the lower cup body are in a flaring cone shape, and the side wall of the upper cup body, the first connecting part, the side wall of the lower cup body and the connecting part are parallel.

In the beverage cup described above, the lamination portion protrudes from the lower cup body side wall and is formed in a stepped shape. Thus, when the beverage cup is inserted into the annular cup seat in an automobile or other places, the step surface at the bottom of the upper cup body can be abutted against the top surface of the cup seat, so that the beverage cup is placed more stably.

In the beverage cup, the side wall of the bottom of the upper cup body is provided with a plurality of folds extending along the length direction. The structural strength of the side wall of the cup body can be improved through the arrangement of the folds, so that the cup body is not easy to deform.

In the beverage cup, the height of the lower cup body is less than or equal to one half of the height of the beverage cup.

In the beverage cup, the width of the laminated part is one fourth to one third of the height of the cup body, so that the structural strength of the cup body can be improved, and the cup is convenient to prevent scalding.

Compared with the prior art, the invention has the following advantages:

1. the cup body of the beverage cup is composed of an upper cup body and a lower cup body, the upper cup body is made of paper materials, the lower cup body is made of transparent materials, the consumption of plastics is reduced, the inside of the cup body can be conveniently observed, and moreover, a cup-shaped whole body can be formed after the waterproof layer of the upper cup body and the lower cup body are welded and used for containing beverages, and leakage is not easy to occur.

2. The upper cup body and the lower cup body are connected through the interlocking structure, so that the connection stability is better, the lower cup body can bear load better, the waterproof layer of the upper cup body and the welding stability between the lower cup body can be guaranteed, and the structural strength of the cup body can be improved, and the anti-scalding effect can be improved through the lamination part formed by the interlocking structure.

3. The bottom of the upper cup body and the lower cup body form a step shape, so that the bottom of the upper cup body can be abutted with the top surface of the cup seat to form the cup body when the cup body is inserted into the annular cup seat, and the stability of the cup body during placement is improved.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is an enlarged view of a portion a of FIG. 1;

fig. 3 is a schematic view of the present invention when welded.

In the figure, 1, an upper cup body; 11. a first connecting part; 12. a first connecting groove; 2. a lower cup body; 21. a second connecting part; 22. a second connecting groove; 3. a waterproof layer; 4. an inner mold; 5. an outer mold; 6. ultrasonic film pressing; 7. and a lamination section.

Detailed Description

The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.

Example 1

As shown in fig. 1, a beverage cup comprises an upper cup body 1 and a lower cup body 2, wherein the upper cup body 1 is in a hollow cylinder shape which is penetrated up and down, the upper cup body 1 is mainly made of paper materials, a waterproof layer 3 is arranged on the inner wall of the upper cup body 1, the waterproof layer 3 is made of PLA, PBS or degradable plastics and other materials, the lower cup body 2 is made of waterproof transparent materials, the lower cup body 2 is in a hollow cylinder shape with a closed bottom, and the bottom of the upper cup body 1 and the top of the lower cup body 2 are integrally formed through ultrasonic welding or bonding.

Specifically, as shown in fig. 1 and 2, in this embodiment, the upper cup body 1 and the lower cup body 2 are both in a flared cone shape, and the outer diameter of the lower portion of the upper cup body 1 is larger than the outer diameter of the top portion of the lower cup body 2. The side wall of the bottom of the upper cup body is outwards turned to form a first connecting part 11, and a first connecting groove 12 is formed between the first connecting part 11 and the side wall of the bottom of the upper cup body 1; the side wall at the top of the lower cup body 2 is turned outwards to form a second connecting part 21, a second connecting groove 22 is formed between the second connecting part 21 and the side wall at the top of the lower cup body 2, the first connecting part 11 is inserted into the second connecting groove 22, and the second connecting part 21 is inserted into the first connecting groove 12, so that the bottom of the upper cup body 1 and the top of the lower cup body 2 form a mutually buckled structure. The waterproof layer 3 of lower cup 2 inner wall extends to the lateral wall of connecting portion two, makes the inner wall of spread groove 1 all have waterproof layer 3, and through ultrasonic welding, connecting portion two 21 lateral walls can be in the same place with the waterproof layer 3 welding of last cup 1 inner wall, make and form stable connection between cup 1 and the lower cup 2, simultaneously, can form a cup form wholly between the waterproof layer 3 of last cup 1 inner wall and the lower cup 2, make the beverage homoenergetic hold in the whole of the cup form that waterproof layer 3 formed, avoid beverage liquid infiltration. Moreover, the first connecting part 11 and the second connecting part 21 are overlapped and form a four-layer laminated part 7 with the side wall of the upper cup body 1 and the side wall of the lower cup body 2, the laminated part 7 is approximately positioned in the middle of the cup body and is arranged around the circumference of the cup body, the structural strength of the cup body can be greatly improved, the cup body is prevented from being pinched and deformed during holding, and the laminated part 7 also has a good heat insulation effect, so that a person is not easy to scald when holding the laminated part 7. In order to further improve the structural strength and the heat insulation effect of the laminated part 7, the overall width of the laminated part 7 may be about one fourth to one third of the height of the cup body, and the first connecting part 11 and the second connecting part 21 in the laminated part 7 may be folded again, so that the laminated part 7 forms a five-layer or six-layer structure.

In this embodiment, the material of the lower cup body 2 may be made of common plastic, or may be made of PLA, PBS, or degradable materials such as degradable plastic, so that in order to ensure the welding effect between the waterproof layer 3 and the lower cup body 2, the waterproof layer 3 and the lower cup body 2 are preferably made of the same material, and in this embodiment, the lower cup body 2 and the waterproof layer 3 are both made of PLA materials.

In this embodiment, the outer diameter of the bottom of the upper cup 1 is larger than the outer diameter of the top of the lower cup 2, so that the lamination portion 7 protrudes from the side wall of the lower cup 2 and forms a step shape, and when the beverage cup is inserted into an annular cup seat in an automobile or other places, the step surface of the bottom of the upper cup 1 can be abutted against the top surface of the cup seat.

Further, the waterproof layer 3 of the inner wall of the upper cup body 1 extends to the side wall of the first connecting part, the waterproof layer 3 is arranged outside the upper cup body 1, the waterproof layer 3 of the outer wall of the upper cup body 1 extends to the side wall of the first connecting part 11, and the waterproof layer 3 on the adjacent side of the side wall of the first connecting part 11 and the side wall of the lower cup body 2 is welded with the side wall of the lower cup body 2 through ultrasonic waves, so that the side wall of the upper cup body 1, the second connecting part 21, the first connecting part 11 and the side wall of the lower cup body 2 are connected, and the connection stability between the upper cup body 1 and the lower cup body 2 is further ensured. Preferably, in this embodiment, the side wall of the upper cup 1, the first connecting portion 11, the side wall of the lower cup 2, and the second connecting portion 21 are parallel.

Further, in this embodiment, the height of the lower cup 2 is less than or equal to half of the height of the beverage cup, so that the occupancy rate of the upper cup 1 is increased while the inside of the cup can be observed, thereby improving the use ratio of the paper material.

Example two

As shown in fig. 3, the structure of this embodiment is basically the same as that of the first embodiment, and is different in that, in this embodiment, the welding device for welding the beverage cup includes an inner mold 4, an outer mold 5, and an ultrasonic pressing mold 6, where the shape of the inner mold 4 is adapted to the inner cavity of the beverage cup body, the shape of the outer mold 5 is adapted to the outer wall of the upper cup body 1, the number of the ultrasonic pressing molds 6 is two, and the shape of the joint between the upper cup body and the lower cup body after the two ultrasonic pressing molds are surrounded is adapted to the shape of the joint between the upper cup body and the lower cup body. During welding, the upper cup body 1 and the lower cup body 2 are prefabricated and formed firstly, the caliber of the joint of the upper cup body 1 and the lower cup body 2 can be slightly larger than the outer diameter of the lower cup body 2, assembly is facilitated, after the upper cup body 1 is spliced and matched with the lower cup body 2, the combination of the upper cup body 1 and the lower cup body 2 is sleeved on the inner die 4 of the welding device and fixed through the outer die 5, and then the two ultrasonic pressing dies 6 are folded and press and weld the outer side of the joint of the upper cup body 1 and the lower cup body 2, so that a plurality of folds extending along the length direction are formed on the side wall of the bottom of the upper cup body 1. The structural strength of the joint of the upper cup body 1 and the lower cup body 2 is improved, and meanwhile, the caliber of the bottom of the upper cup body 1 is reduced and is tightly matched with the lower cup body 2, so that the stability of the upper cup body 1 and the lower cup body 2 after welding is further improved.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms of the upper cup 1, the lower cup 2, the waterproof layer 3, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely for convenience in describing and explaining the nature of the invention; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present invention.

Claims

1. The utility model provides a beverage cup, includes the cup, its characterized in that, the cup includes cup (1) and lower cup (2), go up cup (1) and be the cavity tube-shape that link up from top to bottom and adopt paper material to make, lower cup (2) are the confined cavity tube-shape in bottom, the lateral wall of going up cup (1) bottom has the connecting portion one (11) of turning up, and forms spread groove one (12) between the lateral wall of connecting portion one (11) and last cup (1), the lateral wall at lower cup (2) top has the connecting portion two (21) of turning up outwards, and forms spread groove two (22) between the lateral wall of connecting portion two (21) and lower cup (2), connecting portion two (11) insert in spread groove two (22) and in connecting portion two (21) insert in connecting groove one (12), the inner wall of going up cup (1) has waterproof layer (3), lower cup (2) adopt transparent material to make, connecting portion two (21) and waterproof layer (3) and form the laminating portion two (21) and the lateral wall of lower cup (2) and at least one side wall (7) of forming the layer (7).

2. The beverage cup according to claim 1, wherein the waterproof layer (3) of the inner wall of the upper cup body (1) extends to the side wall of the first connecting portion (11), and two sides of the second connecting portion (21) are welded with the waterproof layer (3) respectively.

3. The beverage cup according to claim 1 or 2, wherein the outer wall of the upper cup body (1) is also provided with a waterproof layer (3), the waterproof layer (3) extends to the side wall of the first connecting part (11), and the waterproof layer (3) of the outer wall of the upper cup body (1) extending to the side wall of the first connecting part (11) is welded with the outer wall of the adjacent lower cup body (2).

4. A drinking cup according to claim 1 or 2, characterized in that the water-proof layer (3) is of the same material as the lower cup (2), the water-proof layer (3) and the lower cup (2) being made of PLA, PBS or degradable plastic.

5. The beverage cup according to claim 1 or 2, wherein the upper cup body (1) and the lower cup body (2) are in a flaring cone shape, and the side wall of the upper cup body (1), the first connecting part (11), the side wall of the lower cup body (2) and the second connecting part (21) are parallel.

6. A drinking cup according to claim 1 or 2, wherein the laminate (7) protrudes from the lower cup (2) side wall and is stepped.

7. A drinking cup according to claim 1 or 2, characterized in that the side wall of the bottom of the upper cup body (1) is provided with a number of folds extending in the length direction.

8. A drinking cup according to claim 1, wherein the height of the lower cup (2) is less than or equal to half the height of the present drinking cup.

9. A beverage cup according to claim 1, wherein the width of the laminate (7) is one quarter to one third of the height of the cup.