CN111301846B

CN111301846B - Disposable lunch box with good heat preservation function

Info

Publication number: CN111301846B
Application number: CN202010186900.5A
Authority: CN
Inventors: 刘同祥
Original assignee: Shenzhen Saizhuo Packing Products Co ltd
Current assignee: Shenzhen Saizhuo Packing Products Co ltd
Priority date: 2020-03-17
Filing date: 2020-03-17
Publication date: 2022-05-13
Anticipated expiration: 2040-03-17
Also published as: CN111301846A

Abstract

The invention discloses a disposable lunch box with a good heat preservation function, which comprises a box body, wherein a containing groove is formed in the side wall of the box body, a heat preservation mechanism is arranged in the box body, the heat preservation mechanism comprises a placing groove arranged at the lower wall of the containing groove, the inner wall of the placing groove is elastically connected with a bottom plate through a plurality of pressure springs, an installation cavity is arranged in the box body, the lower wall of the installation cavity is communicated with the placing groove through a connecting channel, the inner wall of the installation cavity is hermetically and slidably connected with a placing plate, the upper wall of the placing plate is fixedly connected with a U-shaped box, the inner wall of the U-shaped box is hermetically and slidably connected with a moving block, the space of the U-shaped box, which is positioned at the lower end of the moving block, is filled with a thermal expansion medium, the upper wall of the U-shaped box is elastically connected with a lifting block through a tension spring, the containing cavity is arranged in the box, and the upper wall of the containing cavity is fixedly connected with a water bag. The invention can prevent food from being cold, ensure the taste of the food and the health of people.

Description

Disposable lunch box with good heat preservation function

Technical Field

The invention relates to the technical field of tableware, in particular to a disposable lunch box with a good heat preservation function.

Background

Along with the continuous popularization of mobile payment, the takeaway trade is also more and more prosperous, people can take the takeaway through the collection point, then take the goods from the shop and deliver to customer's hand in the takeaway guy, people just can enjoy various food outside without going out, in addition, there are some electric power maintainers outside now, because need work in high altitude for a long time, inconvenient coming to eat on the ground, so, often can directly use the lunch box aloft with the rice, however, current disposable lunch-box has following problem:

1. in the transport process of taking out, because the transport needs a certain time, the food in the lunch box can be gradually cooled, when some customers far away receive the food, the food can be already cooled, thereby affecting the taste and quality of the food, even after the customers eat the very cold food, the health of the customers can be caused to some problems, in addition, because the overhead maintainers work for a long time, the carried meal is also easy to be cooled, and the health of eaters is also easy to be affected;

2. the existing take-out lunch box is generally separated from tableware such as chopsticks, so that the condition that the tableware such as the chopsticks is forgotten to be carried during take-out transportation occurs, and unnecessary troubles are caused to merchants, take-out chicks and customers;

3. the existing disposable lunch box is generally made of plastic stool material, and because the surface of the plastic is smooth, when a customer eats the lunch box, the lunch box is easy to slide on a table, which brings inconvenience to the customer.

Therefore, it is necessary to design a disposable lunch box with good heat insulation function to solve the above problems.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides a disposable lunch box with a good heat preservation function.

In order to achieve the purpose, the invention adopts the following technical scheme:

a disposable lunch box with good heat preservation function comprises a box body, wherein a containing groove is formed in the side wall of the box body, a heat preservation mechanism is arranged in the box body, the heat preservation mechanism comprises a placing groove arranged at the lower wall of the containing groove, the inner wall of the placing groove is elastically connected with a bottom plate through a plurality of pressure springs, an installation cavity is arranged in the box body, the lower wall of the installation cavity is communicated with the placing groove through a connecting channel, the inner wall of the installation cavity is hermetically and slidably connected with a placing plate, the upper wall of the placing plate is fixedly connected with a U-shaped box, the inner wall of the U-shaped box is hermetically and slidably connected with a moving block, the space of the U-shaped box, which is positioned at the lower end of the moving block, is filled with a thermal expansion medium, the upper wall of the U-shaped box is elastically connected with a lifting block through a tension spring, the inside of the box body is provided with a containing cavity, the upper wall of the containing cavity is fixedly connected with a water bag, and the upper wall of the lifting block is fixedly connected with a metal needle, and the metal needle extends to and places the intracavity, the inside annular chamber that is equipped with of box body, the inside packing of annular chamber has quick lime, the annular chamber upper wall passes through the inlet channel and places the chamber intercommunication.

Preferably, the containing groove is of an inverted round platform structure, the placing groove is of a cylindrical structure, and the bottom plate is in sealing sliding connection with the side wall of the placing groove.

Preferably, the box body lateral wall is equipped with the storing groove, storing inslot wall has the sliding plug through spring elastic connection, storing groove lateral wall intercommunication is equipped with the spacing groove, the spacing inslot is equipped with the limiting plate, storing groove lower wall intercommunication is equipped with the negative pressure way.

Preferably, the negative pressure way extends to the middle part of the lower wall of the box body, and one end of the negative pressure way, which is far away from the storage groove, is funnel-shaped.

The invention has the following beneficial effects:

1. compared with the prior art, the water bag is provided with the heat preservation mechanism, after food is cooled, the metal needle punctures the water bag, water in the water bag flows into the annular cavity and is mixed with quicklime, a large amount of heat can be released, the food is heated, the food is prevented from being cooled, the taste of the food is guaranteed, and the health of people is also guaranteed;

2. compared with the prior art, the invention is provided with the storage groove, so that tableware such as disposable chopsticks can be prevented from being in the storage groove, and the problems of forgetting to take the tableware and the like are avoided;

3. compared with the prior art, after the tableware is taken out of the storage groove, the sliding plug moves upwards under the elastic force of the spring, so that the space at the lower end of the sliding plug is enlarged to form negative pressure, the lunch box can be tightly extruded on a table top by external air pressure, the lunch box is prevented from sliding, and the tableware is convenient for customers to use.

Drawings

FIG. 1 is a schematic structural view of a disposable lunch box with a good heat preservation function according to the present invention;

fig. 2 is a schematic structural view of a disposable lunch box with a good heat preservation function according to embodiment 2 of the present invention.

In the figure: 1 box body, 2 hold groove, 3 bottom plates, 4 standing grooves, 5 annular chambers, 6 connecting ways, 7 installation cavities, 8 placing plates, 9 moving blocks, 10 lifting blocks, 11 metal needles, 12 placing chambers, 13 water bags, 14 water inlet ways, 15 storage grooves, 16 limiting grooves, 17 limiting plates, 18 sliding plugs, 19 negative pressure ways and 20U-shaped boxes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Example 1

Referring to fig. 1, a disposable lunch box with good heat preservation function, includes box body 1, and box body 1 is close to the lateral wall of upper end and is equipped with annular arch for match the lid of lunch-box, and box body 1 lateral wall is equipped with holds groove 2, holds groove 2 and is the round platform type structure of invering.

The heat preservation mechanism is arranged in the box body 1 and comprises a placing groove 4 arranged on the lower wall of the containing groove 2, the placing groove 4 is of a cylindrical structure, the inner wall of the placing groove 4 is elastically connected with a bottom plate 3 through a plurality of pressure springs, the bottom plate 3 is connected with the side wall of the placing groove 4 in a sealing and sliding manner, a mounting cavity 7 is arranged in the box body 1, the lower wall of the mounting cavity 7 is communicated with the placing groove 4 through a connecting channel 6, the inner wall of the mounting cavity 7 is connected with a placing plate 8 in a sealing and sliding manner, the placing plate 8 is made of a material with good heat conductivity and is convenient for transferring heat into the U-shaped box 20, the upper wall of the placing plate 8 is fixedly connected with a U-shaped box 20, the U-shaped box 20 is inverted on the upper wall of the placing plate 8, the inner wall of the U-shaped box 20 is connected with a moving block 9 in a sealing and sliding manner, the moving block 9 is positioned at the left part of the inner cavity of the U-shaped box 20, a space at the lower end of the moving block 9 is filled with a thermal expansion medium, and the thermal expansion medium is easy to be heated, can be mercury etc, U type box 20 upper wall has elevator 10 through extension spring elastic connection, elevator 10 is located the right part of U type box 20 inner chamber, 1 inside being equipped with of box body places chamber 12, place 12 upper walls fixedly connected with water pocket 13 in the chamber, water is equipped with in the water pocket 13, elevator 10 upper walls fixedly connected with metal needle 11, and metal needle 11 extends to placing in the chamber 12, furthermore, the department of running through of metal needle 11 and installation cavity 7 upper wall is equipped with the sealing washer, prevent rivers to installation cavity 7 in, 1 inside annular chamber 5 that is equipped with of box body, 5 inside packings of annular chamber have quick lime, 5 upper walls of annular chamber pass through intake channel 14 and place 12 intercommunications in the chamber, place the inclined plane of 12 bottoms in chamber for 14 slopes to the intake channel, be convenient for water flows into in annular chamber 5.

In an initial state, the metal needle 11 is not in contact with the water bag 13, after food is placed in the containing groove 2, under the pressure action of the food, the bottom plate 3 moves downwards, air at the lower end of the bottom plate 3 is squeezed into the mounting cavity 7, the placing plate 8 moves upwards, however, due to the fact that the temperature of the food is high, the temperature is transmitted into the mounting cavity 7 and the U-shaped box 20, the thermal expansion medium expands, the moving block 9 is driven to move upwards, the lifting block 10 is further pushed to move downwards, the annular cavity is stretched, the metal needle 11 is driven to move downwards, at the moment, the metal needle 11 is still not in contact with the water bag 13, after a period of time, the food is gradually cooled, the temperature in the box body 1 is reduced, the thermal expansion medium contracts, the moving block 9 moves downwards, under the pulling force of the lifting block 10 moves upwards under the pulling force of the tension spring, the metal needle 11 is driven to move upwards, the metal needle 11 punctures the water bag 13, water in the water bag 13 flows out, and flows into the water inlet channel 14, the water and the quicklime are mixed to release a large amount of heat, so that the food can be heated, and the food is prevented from being cooled.

It is to be noted that to puncture the water bladder 13, two conditions must be satisfied simultaneously: one is that there is food in holding the groove 2, even place the board 8 and move up, and its second is the temperature of food becomes cold, and thermal expansion medium contracts promptly, and the elevator 10 moves up.

Example 2

Referring to fig. 2, a disposable lunch box with good heat preservation function, 1 lateral wall of box body is equipped with storing groove 15, can place tableware such as disposable chopsticks in the storing groove 15, there is a sliding plug 18 storing groove 15 inner wall through spring elastic connection, it is worth noting, after placing tableware such as chopsticks in storing groove 15, the spring is in compression state, sliding plug 18 and the sealed sliding connection of storing groove 15 inner wall, storing groove 15 lateral wall intercommunication is equipped with spacing groove 16, be equipped with limiting plate 17 in the spacing groove 16, limiting plate 17 is horizontal J style of calligraphy, storing groove 15 lower wall intercommunication is equipped with negative pressure way 19, negative pressure way 19 extends to the middle part of 1 lower wall of box body, the one end that storing groove 15 was kept away from to negative pressure way 19 is for leaking hopper-shaped.

On the basis of embodiment 1, the present embodiment can prevent tableware such as chopsticks from being placed in the storage groove 15, and thus, inconvenience such as inconvenient carrying due to separation of a lunch box and the tableware such as the chopsticks is avoided, when people use the lunch box, the lunch box is placed on a desktop, at this time, the negative pressure channel 19 and the desktop form a closed space, the limiting plate 17 is pulled leftwards, under the elastic force of the spring, the chopsticks can be popped out from the storage groove 15 and the sliding plug 18 is driven to move upwards, so that the volume of the closed space between the lower end of the sliding plug 18 and the desktop is increased, but the amount of air is unchanged, therefore, the pressure in the closed space is reduced, the outside air pressure can tightly press the lunch box on the desktop, people are prevented from sliding freely when having meals, and inconvenience is brought to people.

It should be noted that, in the present embodiment, the elastic force of the spring on the sliding plug 18 is greater than the pressure of the outside air pressure on the sliding plug 18.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The utility model provides a disposable lunch-box with good heat preservation function, includes box body (1), box body (1) lateral wall is equipped with holds groove (2), its characterized in that: the heat preservation device is characterized in that a heat preservation mechanism is arranged in the box body (1), the heat preservation mechanism comprises a placing groove (4) arranged on the lower wall of the placing groove (2), the inner wall of the placing groove (4) is elastically connected with a bottom plate (3) through a plurality of pressure springs, an installation cavity (7) is arranged in the box body (1), the lower wall of the installation cavity (7) is communicated with the placing groove (4) through a connecting channel (6), the inner wall of the installation cavity (7) is hermetically and slidably connected with a placing plate (8), the upper wall of the placing plate (8) is fixedly connected with a U-shaped box (20), the inner wall of the U-shaped box (20) is hermetically and slidably connected with a moving block (9), a space, located at the lower end of the moving block (9), of the U-shaped box (20) is filled with a heat expansion medium, the upper wall of the U-shaped box (20) is elastically connected with a lifting block (10) through a tension spring, a placing cavity (12) is arranged in the box body (1), the upper wall of the placing cavity (12) is fixedly connected with a water bag (13), the upper wall of the lifting block (10) is fixedly connected with a metal needle (11), the metal needle (11) extends into the placing cavity (12), an annular cavity (5) is arranged inside the box body (1), quicklime is filled inside the annular cavity (5), and the upper wall of the annular cavity (5) is communicated with the placing cavity (12) through a water inlet channel (14); the containing groove (2) is of an inverted round platform structure, the placing groove (4) is of a cylindrical structure, and the bottom plate (3) is in sealed sliding connection with the side wall of the placing groove (4); the side wall of the box body (1) is provided with a storage groove (15), the inner wall of the storage groove (15) is elastically connected with a sliding plug (18) through a spring, the side wall of the storage groove (15) is communicated with a limiting groove (16), a limiting plate (17) is arranged in the limiting groove (16), and the lower wall of the storage groove (15) is communicated with a negative pressure channel (19); the negative pressure channel (19) extends to the middle part of the lower wall of the box body (1), and one end, away from the storage groove (15), of the negative pressure channel (19) is funnel-shaped;

the metal needle (11) is not contacted with the water bag (13), after food is placed in the containing groove (2), under the pressure action of the food, the bottom plate (3) moves downwards, air at the lower end of the bottom plate (3) is extruded into the mounting cavity (7), the placing plate (8) moves upwards, however, because the temperature of the food is higher, the temperature is transferred into the mounting cavity (7) and the U-shaped box (20), the thermal expansion medium expands to drive the moving block (9) to move upwards, the lifting block (10) is further pushed to move downwards, the tension spring is stretched to drive the metal needle (11) to move downwards, at the moment, the metal needle (11) is still not contacted with the water bag (13), after a period of time, the food is gradually cooled, the temperature in the box body (1) is reduced, the thermal expansion medium contracts, the moving block (9) moves downwards, under the tension force of the tension spring, the lifting block (10) moves upwards and drives the metal needle (11) to move upwards, the metal needle (11) punctures the water sac (13), water in the water sac (13) flows out and flows into the annular cavity (5) through the water inlet channel (14), and the water and the quick lime are mixed to release a large amount of heat, so that food can be heated, and the food is prevented from being cooled.