Heatable disposable paper pulp meal box

Abstract

The utility model discloses a heatable disposable paper pulp meal box which comprises a box body, a cover body is movably arranged at the upper end of the box body, an exhaust pipe is fixedly arranged at the upper end of the cover body, a cover plate is fixedly arranged at the upper end of the exhaust pipe, a plurality of exhaust holes are formed in the outer side of the exhaust pipe, and a limiting ring is fixedly arranged at the lower end of the exhaust pipe. A limiting ring is fixedly arranged on the outer side of the cover plate, an air inlet hole is formed in the center of the limiting ring, a pushing plate is movably arranged in the exhaust pipe, a sealing ring is fixedly arranged on the outer side of the pushing plate and movably connected with the exhaust pipe, and a spring is fixedly connected between the pushing plate and the cover plate. And internal redundant hot air is exhausted from the plurality of exhaust holes, so that the phenomenon that the bottom of the box body is broken due to the fact that hot air pressure of the lunch box is dense in the lunch box is avoided, food contained in the lunch box cannot be spilled out, and normal dining is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of disposable paper pulp lunch boxes, and more specifically, to a heatable disposable paper pulp lunch box. Background Art

[0002] The pulp lunch box is an environmentally friendly lunch box, mainly made of pulp. With the improvement of people's environmental awareness and the continuous growth of the green packaging market, disposable pulp lunch boxes have been widely used. When the existing disposable pulp lunch boxes are closed and heated, the hot air cannot be discharged in the lunch box, causing the hot air pressure to be concentrated in the lunch box, which causes the bottom of the lunch box to break when heated, and the food in the lunch box to spill out, thus affecting normal dining and wasting resources; secondly, after the existing disposable pulp lunch boxes are filled with food, the fixing block on the lid is inserted into the fixing groove of the box body to cover the lid on the box body. This fixing method has a simple structure and can be opened and closed at will during the delivery process. It cannot guarantee that the food has not been opened during the process from the restaurant to the customer's hands, and there is a food safety hazard. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the problems existing in the prior art, the utility model provides a heatable disposable pulp lunch box to solve the technical problem mentioned in the background technology that when the existing disposable pulp lunch box is closed and heated, the hot air cannot be discharged in the lunch box, causing the hot air pressure to be concentrated in the lunch box, thereby causing the bottom of the lunch box to rupture when heated.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a disposable paper pulp lunch box that can be heated, comprising a box body, a cover body movably provided on the upper end of the box body, an exhaust pipe fixedly provided on the upper end of the cover body, a cover plate fixedly provided on the upper end of the exhaust pipe, a plurality of exhaust holes provided on the outer side of the exhaust pipe, a limiting ring fixedly provided on the lower end of the exhaust pipe, an air inlet hole provided at the center of the limiting ring, a push plate movably provided in the exhaust pipe, a sealing ring fixedly provided on the outer side of the push plate, the sealing ring movably connected to the exhaust pipe, and a spring fixedly connected between the push plate and the cover plate;

[0007] A locking assembly is provided on the outside of the box body, and the locking assembly includes a plurality of L-shaped fixing blocks fixedly arranged on the lower end of the cover body. A first supporting ring is fixedly provided on the outside of the box body.

[0008] The utility model is further configured that a second supporting ring is fixedly provided on the outer side of the box body to facilitate supporting the tear strip.

[0009] The utility model is further configured such that a tear strip is point-contact connected between the first support ring and the second support ring, and a pulling block is fixedly provided at one end of the tear strip to facilitate tearing of the tear strip.

[0010] The utility model is further configured that a fixing strip matched with the fixing block is provided on one side of the tear strip, and the fixing block and the fixing strip are respectively provided with inclined surfaces used in coordination, so as to facilitate fixing the fixing block.

[0011] The utility model is further configured such that the first support ring is provided with a plurality of through holes matched with the fixing block, so that the fixing block can pass through the first support ring easily.

[0012] The utility model is further configured that the cover body is provided with a placement chamber for facilitating the placement of tableware.

[0013] The utility model is further configured that the lower end of the placement chamber is fixedly connected with a mounting frame through the cover body, so as to facilitate the placement of the partition plate.

[0014] The utility model is further configured that a partition plate is slidably provided in the installation frame, and one end of the partition plate passes through the installation frame and is fixedly connected with a handle to facilitate the movement of the partition plate.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a disposable paper pulp lunch box that can be heated, which has the following beneficial effects:

[0017] 1. Through the cooperation of the box body, the cover body, the exhaust pipe, the cover plate, the exhaust hole, the limit ring, the air inlet hole, the push plate, the sealing ring and the spring, when the entire closed lunch box containing food is heated, the excess hot air inside can be discharged from the multiple exhaust holes, thereby avoiding the phenomenon that the hot air pressure in the lunch box is intensively pressed in the lunch box and the bottom of the box body is broken, and the food in the lunch box will not spill out, ensuring normal dining and saving resources. At the same time, when heating is not required, the push plate and the sealing ring can close the air inlet hole, thereby avoiding the phenomenon of soup spilling during the delivery process.

[0018] 2. By cooperating with the fixing block, the first support ring, the second support ring, the tear strip, the pulling block, the fixing strip, the inclined surface and the through hole, the cover body can be fixed to the box body after the food is placed in the box body, and the cover body can be opened only when the tear strip is torn off, so that the customer can judge whether the lunch box has been opened during the delivery process by observing whether the tear strip is torn off, thereby reducing food safety hazards.

[0019] 3. Through the coordination of the placement room, installation frame, partition plate and handle, the tableware can be placed together in the lunch box, making it convenient for customers to take. At the same time, the partition plate can separate the tableware from the food to ensure the cleanliness of the tableware. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of a disposable heatable pulp lunch box in use;

[0021] Figure 2 It is a schematic diagram of a partial cross-sectional structure of an exhaust pipe and its connecting parts when the exhaust pipe is not exhausting air;

[0022] Figure 3 for Figure 2 A is a partial enlarged schematic diagram;

[0023] Figure 4 It is a schematic diagram of the partial cross-sectional structure of the box body and its connecting parts when the cover body is fixed;

[0024] Figure 5 It is a schematic diagram of the partial cross-sectional structure of the box body and its connecting parts when the cover body is not fixed.

[0025] In the figure, 1 is a box body; 2 is a cover body; 3 is an exhaust pipe; 4 is a cover plate; 5 is an exhaust hole; 6 is a limit ring; 7 is an air inlet; 8 is a push plate; 9 is a sealing ring; 10 is a spring; 11 is a fixing block; 12 is a first supporting ring; 13 is a second supporting ring; 14 is a tear strip; 15 is a pulling block; 16 is a fixing strip; 17 is a slope; 18 is a through hole; 19 is a placement chamber; 20 is a mounting frame; 21 is a partition plate; 22 is a handle. DETAILED DESCRIPTION

[0026] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0028] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0029] See also Figure 1-5A disposable paper pulp lunch box that can be heated comprises a box body 1, a cover body 2 is movably provided at the upper end of the box body 1, an exhaust pipe 3 is fixedly provided at the upper end of the cover body 2, a cover plate 4 is fixedly provided at the upper end of the exhaust pipe 3, a plurality of exhaust holes 5 are provided on the outer side of the exhaust pipe 3, a limiting ring 6 is fixedly provided at the lower end of the exhaust pipe 3, an air inlet hole 7 is provided at the center of the limiting ring 6, a push plate 8 is movably provided in the exhaust pipe 3, a sealing ring 9 is fixedly provided on the outer side of the push plate 8, the sealing ring 9 is movably connected to the exhaust pipe 3, and a spring 10 is fixedly connected between the push plate 8 and the cover plate 4;

[0030] A locking assembly is disposed on the outside of the box body 1 , and the locking assembly includes a plurality of L-shaped fixing blocks 11 fixedly disposed on the lower end of the cover body 2 . A first supporting ring 12 is fixedly disposed on the outside of the box body 1 .

[0031] In the present embodiment, when the lunch box containing food is heated, the heat generated by the food will gather between the cover body 2 and the box body 1. When the air pressure increases, the hot air will enter the exhaust pipe 3 from the air inlet 7. Since the push plate 8 is sealed with the exhaust pipe 3 through the sealing ring 9, the hot air entering the exhaust pipe 3 will push the push plate 8 upward, so that the push plate 8 drives the sealing ring 9 to move upward, and the spring 10 is compressed. When the push plate 8 moves to above the exhaust hole 5, the hot air in the exhaust pipe 3 will be discharged from the multiple exhaust holes 5, thereby preventing the bottom of the box body 1 from being broken due to excessive hot air pressure between the box body 1 and the cover body 2. When heating is not required, the push plate 8 and the sealing ring 9 are moved to the bottom of the exhaust pipe 3 to seal the exhaust pipe 3 under the push of the spring 10, thereby preventing food soup from spilling out of the exhaust pipe 3 during transportation.

[0032] More specifically, when the lunch box containing food is heated, the internal hot air will push the push plate 8 to move upward, so that the exhaust hole 5 is aligned with the air inlet 7, thereby exhausting the excessive hot air and avoiding excessive hot air pressure inside the lunch box. When the food is required to be placed in the box body 1, the cover body 2 is placed on the box body 1, so that the fixing block 11 passes through the first support ring 12, thereby covering the cover body 2 on the box body 1.

[0033] See also Figure 1-5 As an implementation method for fixing the cover body 2: a second support ring 13 is fixedly provided on the outer side of the box body 1, a tear strip 14 is point-contactedly connected between the first support ring 12 and the second support ring 13, a pulling block 15 is fixedly provided at one end of the tear strip 14, a fixing strip 16 cooperating with the fixing block 11 is provided on one side of the tear strip 14, and a matching inclined surface 17 is respectively provided on the fixing block 11 and the fixing strip 16, and a plurality of through holes 18 cooperating with the fixing block 11 are provided on the first support ring 12.

[0034] Specifically, the restaurant staff puts the food into the box body 1, moves the cover body 2 to the upper end of the box body 1, and the cover body 2 drives the multiple fixing blocks 11 to move. The multiple fixing blocks 11 are respectively passed through the multiple through holes 18 and continue to press the cover body 2 downward. The cover body 2 drives the fixing blocks 11 to move downward, so that the inclined surface 17 of the fixing block 11 and the inclined surface 17 of the fixing strip 16 first contact each other. In the process of the fixing block 11 continuing to move downward, the fixing block 11 and the tear strip 14 are slightly deformed, so that the fixing block 11 moves to the bottom of the fixing strip 16 and is engaged with it, thereby fixing the cover body 2 to the box body. 1, when the entire lunch box containing food is delivered to the customer and needs to be opened, the pulling block 15 is pulled, so that the pulling block 15 drives the tear strip 14 to be torn off along the point contact connection with the first support ring 12 and the second support ring 13, and the tear strip 14 drives the fixing strip 16 to be torn off, thereby releasing the clamping of the fixing block 11. At this time, the cover body 2 can be moved upward, so that the cover body 2 drives the fixing block 11 to pass through the through hole 18, thereby opening the cover body 2. The customer can judge whether the lunch box has been opened during the delivery process by whether the tear strip 14 on the received lunch box is torn off.

[0035] See also Figure 1-5 As an implementation method for placing tableware: the utility model is further configured as follows: a placement chamber 19 is provided on the cover body 2, the lower end of the placement chamber 19 passes through the cover body 2 and is fixedly connected to a mounting frame 20, a partition plate 21 is slidably provided in the mounting frame 20, and one end of the partition plate 21 passes through the mounting frame 20 and is fixedly connected to a handle 22.

[0036] Specifically, by pulling the handle 22, the handle 22 drives the partition plate 21 to be moved out of the installation frame 20, thereby opening the placement chamber 19. Restaurant staff can place tableware in the placement chamber 19, and then insert the partition plate 21 into the installation frame 20. When the cover body 2 is fixed to the upper end of the box body 1, the partition plate 21 can prevent food from contaminating the tableware, so that the tableware remains clean.

[0037] To sum up, when the overall equipment is in use:

[0038] When the restaurant staff needs to put the tableware into the lunch box, they pull the handle 22 so that the handle 22 drives the partition plate 21 to move out of the installation frame 20, thereby opening the placement chamber 19. The restaurant staff can put the tableware into the placement chamber 19 and then insert the partition plate 21 into the installation frame 20. When the cover body 2 is fixed to the upper end of the box body 1, the partition plate 21 can prevent food from contaminating the tableware, so that the tableware remains clean.

[0039] When the restaurant staff is packing the food, they put the food into the box body 1 and move the cover body 2 to the upper end of the box body 1. The cover body 2 drives the multiple fixing blocks 11 to move. The multiple fixing blocks 11 pass through the multiple through holes 18 respectively and continue to press the cover body 2 downward. The cover body 2 drives the fixing blocks 11 to move downward, so that the inclined surface 17 of the fixing blocks 11 and the inclined surface 17 of the fixing strip 16 contact first. In the process of the fixing blocks 11 continuing to move downward, the fixing blocks 11 and the tear strip 14 are slightly deformed, so that the fixing blocks 11 move to the bottom of the fixing strip 16 and engage with it, thereby the cover is closed. The cover body 2 is fixed to the box body 1. When the entire lunch box containing food is delivered to the customer and needs to be opened, the pulling block 15 is pulled, so that the pulling block 15 drives the tear strip 14 to be torn off along the point contact connection with the first support ring 12 and the second support ring 13, and the tear strip 14 drives the fixing strip 16 to be torn off, thereby releasing the clamping of the fixing block 11. At this time, the cover body 2 can be moved upward, so that the cover body 2 drives the fixing block 11 to pass through the through hole 18 to open the cover body 2. The customer can judge whether the lunch box has been opened during the delivery process by whether the tear strip 14 on the received lunch box is torn off.

[0040] When the lunch box containing food is heated, the heat generated by the food will gather between the cover 2 and the box body 1. When the air pressure increases, the hot air will enter the exhaust pipe 3 from the air inlet 7. Since the push plate 8 is sealed with the exhaust pipe 3 through the sealing ring 9, the hot air entering the exhaust pipe 3 will push the push plate 8 upward, so that the push plate 8 drives the sealing ring 9 to move upward, and the spring 10 is compressed. When the push plate 8 moves to above the exhaust hole 5, the hot air in the exhaust pipe 3 will be discharged from the multiple exhaust holes 5, thereby preventing the bottom of the box body 1 from being broken due to excessive hot air pressure between the box body 1 and the cover 2. When heating is not required, the push plate 8 and the sealing ring 9 are moved to the bottom of the exhaust pipe 3 to seal the exhaust pipe 3 under the push of the spring 10, thereby preventing food soup from spilling out of the exhaust pipe 3 during the delivery process.

[0041] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A disposable heatable paper pulp lunch box, comprising a box body (1), wherein a cover body (2) is movably provided on the upper end of the box body (1), wherein: An exhaust pipe (3) is fixedly provided at the upper end of the cover body (2), a cover plate (4) is fixedly provided at the upper end of the exhaust pipe (3), a plurality of exhaust holes (5) are provided on the outer side of the exhaust pipe (3), a limiting ring (6) is fixedly provided at the lower end of the exhaust pipe (3), an air inlet hole (7) is provided at the center of the limiting ring (6), a push plate (8) is movably provided in the exhaust pipe (3), a sealing ring (9) is fixedly provided on the outer side of the push plate (8), the sealing ring (9) is movably connected to the exhaust pipe (3), and a spring (10) is fixedly connected between the push plate (8) and the cover plate (4); A locking assembly is provided on the outside of the box body (1), the locking assembly comprising a plurality of L-shaped fixing blocks (11) fixedly arranged on the lower end of the cover body (2), and a first supporting ring (12) is fixedly arranged on the outside of the box body (1).

2. A disposable heatable paper pulp lunch box according to claim 1, characterized in that: A second supporting ring (13) is fixedly provided on the outer side of the box body (1).

3. A disposable heatable paper pulp lunch box according to claim 2, characterized in that: A tear strip (14) is point-contact-connected between the first support ring (12) and the second support ring (13), and a pulling block (15) is fixedly provided at one end of the tear strip (14).

4. A disposable heatable paper pulp lunch box according to claim 3, characterized in that: A fixing strip (16) matched with the fixing block (11) is provided on one side of the tear strip (14), and a matching inclined surface (17) is provided on the fixing block (11) and the fixing strip (16).

5. A disposable heatable paper pulp lunch box according to claim 4, characterized in that: The first supporting ring (12) is provided with a plurality of through holes (18) which match the fixing block (11).

6. A heatable disposable pulp lunch box according to any one of claims 1 or 2, characterized in that: The cover body (2) is provided with a placement chamber (19).

7. A disposable heatable paper pulp lunch box according to claim 6, characterized in that: The lower end of the placement chamber (19) passes through the cover body (2) and is fixedly connected to a mounting frame (20).

8. The heatable disposable pulp lunch box according to claim 7, characterized in that: A partition plate (21) is slidably disposed in the installation frame (20), and one end of the partition plate (21) passes through the installation frame (20) and is fixedly connected to a pull handle (22).

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