CN216220565U - Food heat preservation knapsack - Google Patents

Abstract

The application relates to the field of heat preservation equipment, in particular to a food heat preservation knapsack. The application provides a food heat-preservation backpack, which comprises a backpack body and a backpack assembly, wherein the backpack body comprises a backpack body and a backpack cover, and the backpack assembly is arranged on the back of the backpack; the top of the backpack body is provided with a handle; the bag body is a cuboid surrounded by a rectangular bottom surface and 4 side surfaces, the shape of the bag cover is the same as that of the rectangular bottom surface, and the bag body and the bag cover are closed through a waterproof zipper; the 4 side surfaces comprise an inner layer, a middle heat-insulating layer and an outer layer; the middle heat-insulating layer comprises two heat-insulating parts which are arranged at intervals, the heat-insulating parts are made of polyurethane extruded foam, and the inner layer and the outer layer are both waterproof fabrics. The utility model provides a food heat preservation knapsack has the technical advantage that the interior capacity is big, the heat preservation effect is showing, can place two inner containers, holds different types of hot food, can satisfy the hot food supply of 15 ~ 20 people's a meal.

Description

Food heat preservation knapsack

Technical Field

The application relates to the field of heat preservation equipment, in particular to a food heat preservation knapsack.

Background

The backpack is a necessary article for outdoor activities, and as design concepts and technological levels are continuously developed, the backpack is endowed with more functions on the detailed design.

For workers working outdoors for a long time, the simple meal carried by the plastic bag is mainly adopted, such as: steamed stuffed buns, steamed buns, biscuits and the like are not insulated and cannot carry other foods, so that the working personnel have inconvenience in eating, the foods cannot be heated, and the nutrition is single. The existing backpack can only transport food, but cannot effectively preserve heat of the food, and has the technical problems that the internal capacity is small, and a large amount of hot food cannot be transported.

In view of this, the present application is specifically made.

SUMMERY OF THE UTILITY MODEL

The invention aims to provide a food heat-preservation knapsack.

In order to achieve the purpose of the invention of the application, the technical scheme is as follows:

the application provides a food heat-preservation knapsack, which comprises a knapsack body and a knapsack assembly, wherein the knapsack body comprises a knapsack body and a knapsack cover; the top of the backpack body is provided with a handle; the backpack assembly comprises a shoulder strap and a waist support and is fixedly arranged on the rear side surface of the bag body; the bag body is a cuboid surrounded by a rectangular bottom surface and 4 side surfaces, the shape of the bag cover is the same as that of the rectangular bottom surface, and the bag body and the bag cover are closed through a waterproof zipper; the 4 side surfaces comprise an inner layer, a middle heat-insulating layer and an outer layer; the middle heat-insulating layers comprise two heat-insulating parts which are arranged at intervals; the heat preservation part is made of polyurethane extruded foam, and the inner layer and the outer layer are both waterproof fabrics.

Optionally, a first interval area of 40-60 mm is arranged between the two heat preservation parts, the heat preservation part is away from a second interval area of 40-80 mm in width is arranged between the lower edges of the side faces, and the heat preservation part is away from a third interval area of 40-80 mm in width is arranged between the upper edges of the side faces.

Optionally, the two heat preservation components have a movement range of 5-10 mm in the vertical direction.

Optionally, a first reinforcing plate is arranged in the back of the bag body, the height of the first reinforcing plate is smaller than that of the bag body, and the first reinforcing plate is arranged between the outer layer and the middle heat-insulating layer.

Optionally, a second reinforcing plate is arranged in the bottom surface of the bag body, the size of the second reinforcing plate is the same as that of the bottom surface of the bag body, and the second reinforcing plate is arranged between the outer layer and the inner layer.

Optionally, the waist support comprises a mesh fabric layer, a PE plate, a pearl cotton layer, a sponge layer and a waterproof fabric layer from inside to outside in sequence, and the shoulder belt comprises the mesh fabric layer, the pearl cotton layer, the sponge layer and the waterproof fabric layer from inside to outside in sequence.

Optionally, a part of the surface of the back of the bag body is provided with a first shock absorption pad, and the bottom surface of the bag body is provided with a second shock absorption pad.

Optionally, the capsule body and the capsule cover are further provided with plastic buckles.

Optionally, the food heat preservation backpack further comprises a warming component, a temperature sensor and a power supply, wherein the warming component is a strip warming belt and is arranged in the second interval region on three sides except the back of the backpack body, and the power supply is arranged in the second interval region on the back of the backpack body.

Optionally, the temperature sensor is located in the center of the rectangular bottom surface.

The application has at least the following beneficial effects:

the utility model provides a food heat preservation knapsack has the technical advantage that the interior capacity is big, the heat preservation effect is showing, can place two inner containers, holds different types of hot food, can satisfy the hot food supply of 15 ~ 20 people's a meal.

Drawings

FIG. 1 is a schematic structural view of a thermal knapsack for preserving food in accordance with a specific embodiment of an example of the present application;

FIG. 2 is a rear view of a thermal backpack for food according to an embodiment of the present application;

FIG. 3 is a top view of a thermal backpack for food according to an embodiment of the present application;

FIG. 4 is a schematic diagram of a portion tray body of an inner container according to one embodiment of the present disclosure;

FIG. 5 is a schematic view of the construction of the serving tray lid of the inner container according to one embodiment of the present application;

FIG. 6 is a schematic view of an assembled inner container according to an embodiment of the present disclosure;

FIG. 7 is a side view of a thermally insulating backpack for food according to one embodiment of the present application;

FIG. 8 is a bottom view of a thermal backpack for food according to an embodiment of the present application;

wherein:

1-a backpack body;

11-a capsule body;

12-a capsule cover;

13-a first cushion;

14-a second cushion;

2-a piggyback component;

21-shoulder straps;

22-waist support;

3-a handle;

41-serving tray body;

411-an extension;

42-share pan cover;

43-a gas permeable valve;

44-fixing a buckle;

45-lifting the belt.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms also include the plural forms unless the context clearly dictates otherwise, and further, it is understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of the stated features, steps, operations, devices, components, and/or combinations thereof.

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The embodiment of the application provides a food heat preservation knapsack, which is structurally and schematically shown in figure 1, in a back view, in a plan view, in a figure 2, in a top view. As shown in fig. 1 to 3, the food heat preservation knapsack comprises a knapsack body 1 and a knapsack component 2, wherein the knapsack body 1 comprises a knapsack body 11 and a knapsack cover 12; the top of the backpack body 1 is provided with a handle 3; the bag body 11 is a cuboid surrounded by a rectangular bottom surface and 4 side surfaces, and the bag cover 12 is the same as the rectangular bottom surface in shape to form a rectangular solid structure. The backpack component 2 comprises a shoulder strap 21 and a waist support 22, and is fixedly arranged on the rear side surface of the bag body 11; the bag body 11 and the bag cover 12 are closed by a waterproof zipper to form a sealing structure. The food heat preservation knapsack of this application embodiment is straight body structure promptly, can show the volume that increases the knapsack like this for place two inner containers, can satisfy the hot food supply of 15 ~ 20 people's a meal. The two inner containers are stacked up and down in the backpack. The size of the food heat-preservation knapsack is matched with the size of the inner container.

Specifically, the inner container has a structure as shown in fig. 4 and 5, and includes a serving tray body 41 and a serving tray cover 42, which are made of food-grade 304 stainless steel material and formed by a stamping process. The serving cover is provided with a sealing ring, a groove is arranged at the joint of the serving cover body and the sealing ring, the vent valve 43 is arranged at the top of the serving cover, and the sealing ring and the vent valve are made of food-grade silica gel materials. An expansion part 411 is arranged at the upper part of the tray body, and the area of the expansion part 411 is larger than the bottom area of the tray body 41, so that the tray is convenient to carry.

As shown in fig. 6, when the inner container is placed in the food heat-preservation knapsack, a fixing buckle 44 and a lifting belt 45 are also installed; the serving tray body 41 and the serving tray cover 42 are firmly fixed by the fixing buckle 44 from the side, and the lifting belt 45 is fixedly arranged below the 411, so that the inner container can be conveniently taken out of the food heat preservation knapsack.

In order to increase the heat preservation characteristic of this application embodiment food heat preservation knapsack, this application embodiment has carried out following improvement to the knapsack: placing heat insulation materials in the 4 side surfaces, wherein the 4 side surfaces comprise an inner layer, a middle heat insulation layer and an outer layer; the material of middle heat preservation is polyurethane extrusion molding foam, and the thickness of middle heat preservation is 10 ~ 20mm, and inlayer and skin are waterproof surface fabric, and the purpose that the inlayer adopted waterproof surface fabric is to avoid the inner container to spill after leaking some hot water juice, and the seepage comes out, also is convenient for wash simultaneously. The inner layer is made of waterproof fabric, so that rainwater and the like can permeate into the food heat-preservation backpack when the backpack is used in a rainy or humid environment. The outer layer is preferably 300D waterproof oxford fabric, and the fabric has the technical advantages of firmness and wear resistance.

In order to facilitate taking and placing of the inner container, the middle heat-insulating layer comprises two heat-insulating parts which are arranged at intervals, a first interval area of 40-60 mm is arranged between the two heat-insulating parts, and a third interval area of which the width is 40-80 mm is arranged between the heat-insulating parts and the upper edge of the side face. As can be seen from fig. 2, the inner container is not vertically as high for easy handling and taking in and out, but is provided with an expanded portion for handling, and in the food warming backpack, the expanded portion of the lower inner container is provided with a first partition, and the expanded portion of the upper inner container is provided with a third partition.

The food heat-preservation backpack disclosed by the embodiment of the application is used for containing hot food (more than 80 ℃) at the ambient temperature of-40 ℃ to-50 ℃ and preserving heat for 1 hour, and the temperature of the hot food is not lower than 65 ℃. There are three ways thermal power can be transmitted: radiation, convection, and conduction. The metal inner container of the food heat preservation series product of the embodiment of the application can reflect heat radiation, the heat preservation layer can block thermal conduction, and the waterproof sealing zipper can prevent heat convection, so that long-time heat preservation can be realized.

Meanwhile, a second interval area with the width of 40-80 mm is arranged between the lower edge of the heat preservation part and the lower edge of the side face. In order to further increase the heat preservation efficiency of the food heat preservation backpack, a temperature increasing component, a temperature sensor, a power supply and a controller are added in the food heat preservation backpack, and the temperature increasing component, the temperature sensor, the power supply and the controller are in communication connection or electrical connection. The temperature increasing component is a strip-shaped temperature increasing belt and is arranged in the second interval zones of the three sides except the back of the bag body, and the back part is tightly attached to the back of a user of the backpack in the using process of the backpack and has certain temperature increasing and preserving effects. Further, a temperature sensor is positioned in the center of the rectangular bottom surface. When the temperature sensor detects that the temperature is lower than the threshold value, the controller starts the temperature increasing component to heat and increase the temperature of the inner container, and the power supply provides energy for the temperature increasing component.

In order to facilitate taking and placing of the inner container, the two heat preservation components have a movement range of 5-10 mm in the vertical direction as an improvement of the technical scheme of the embodiment of the application.

As an improvement of this application embodiment technical scheme, in order to further strengthen the intensity of knapsack, be provided with first reinforcing plate in the back of bag body, the height that highly is less than the bag body of first reinforcing plate, first reinforcing plate sets up between skin and middle heat preservation. Furthermore, a second reinforcing plate is arranged in the bottom surface of the bag body, the size of the second reinforcing plate is the same as that of the bottom surface of the bag body, and the second reinforcing plate is arranged between the outer layer and the inner layer. Therefore, the reinforcing plate is additionally arranged on the back face and the bottom face of the backpack, and the reinforcing plate is a polypropylene plate (PP plate) with the thickness of 1mm, so that the backpack has the technical advantages of high strength and light weight. Because the food heat preservation knapsack of this application embodiment is used for holding two inner containers, and the volume of two inner containers is 25L, consequently the knapsack load two fill with behind the inner container of hot food, weight is great, can increase the intensity of bag body through the design of reinforcing plate, improves load weight, improves the life of knapsack.

As an improvement of this application embodiment technical scheme, bear the subassembly including baldric and waist support, fixed the setting in the trailing flank of knapsack body, the waist holds in the palm by inside to outside in proper order including the tennis layer, polyethylene board (PE board), the cotton layer of pearl, sponge layer and waterproof precoat, increases the intensity that the PE board can further increase the waist and hold in the palm in the waist holds in the palm. The shoulder belt sequentially comprises a mesh fabric layer, a pearl cotton layer, a sponge layer and a waterproof fabric layer from inside to outside. The pearl cotton layer and the sponge layer are arranged in the shoulder straps and the waist support, so that the comfort and the sweat absorption of the waist support are further improved, and meanwhile, the surfaces of the shoulder straps and the waist support are provided with the mesh fabric layers, so that the air permeability can be improved. The pearl cotton layer is also called polyethylene foam cotton, is formed by countless independent bubbles generated by physically foaming low-density polyethylene resin, and has the advantages of water resistance, moisture resistance, shock resistance, sound insulation, heat preservation, good plasticity, strong toughness, cyclic reconstruction, environmental protection, strong impact resistance and the like. The thickness of the pearl wool layer is 5-15 mm, preferably 10 mm. The thickness of the sponge layer is 5-15 mm, preferably 10 mm. Two groups of buckles are further arranged on the waist support and used for firmly fixing the waist support on the waist.

As a modification of the technical solution of the embodiment of the present application, as shown in fig. 7, in order to increase the comfort of the user, a first cushion pad 13 is provided on the surface of the back surface of the bag body. Meanwhile, as shown in fig. 8, in order to prevent the contents from leaking out due to the bumping of the backpack when it is placed on a vehicle, a second cushion 14 is provided on the bottom surface of the bag body. Specifically, the first cushion 13 includes two shoulder cushions and a waist cushion, the two shoulder cushions are respectively located at the left and right corners of the upper portion of the back of the bag body, and the waist cushion is located at the lower portion of the back of the bag body. The first shock pad 13 comprises a mesh layer, a pearl wool layer and a sponge layer from outside to inside in sequence. The thickness of the pearl wool layer is 5-15 mm, preferably 10 mm. The thickness of the sponge layer is 5-15 mm, preferably 10 mm. The second shock pad 14 comprises two strip-shaped shock pads which are symmetrically arranged at the bottom of the bag body, and the second shock pad sequentially comprises chlorosulfonated polyethylene fabric, a pearl cotton layer and chlorosulfonated polyethylene fabric from outside to inside. The thickness of the pearl wool layer is 5-15 mm, preferably 10 mm. The chlorosulfonated polyethylene is a chlorine-containing special elastomer material with a high saturated chemical structure, which is prepared by chlorination and chlorosulfonation reactions of polyethylene main raw materials, has outstanding performances of chemical medium corrosion resistance, ozone oxidation resistance, oil corrosion resistance, flame retardance and the like, and also has excellent mechanical properties of weather resistance, heat resistance, ion radiation resistance, low temperature resistance, abrasion resistance, electrical insulation and the like.

As an improvement of the technical scheme of the embodiment of the application, in order to further increase the stability of the food heat-preservation knapsack, the knapsack body and the knapsack cover are further provided with plastic buckles, and then the knapsack body and the knapsack cover are further fixed.

In addition, two cloth bags for placing tableware and other accessories are arranged on the inner side surface of the bag cover. The braces of the knapsack are also provided with buckles for further fixing the shoulder straps at the positions of the breasts, so that the knapsack is more stable to bear.

Although the present application has been described with reference to preferred embodiments, it is not intended to limit the scope of the claims, and many possible variations and modifications may be made by one skilled in the art without departing from the spirit of the application.

Claims (10)

1. A food heat-preservation knapsack which is characterized in that,

the food heat-preservation knapsack comprises a knapsack body and a knapsack component, wherein the knapsack body comprises a knapsack body and a knapsack cover; the top of the backpack body is provided with a handle; the backpack assembly comprises a shoulder strap and a waist support and is fixedly arranged on the rear side surface of the bag body; the bag body is a cuboid surrounded by a rectangular bottom surface and 4 side surfaces, the shape of the bag cover is the same as that of the rectangular bottom surface, and the bag body and the bag cover are closed through a waterproof zipper;

the 4 side surfaces comprise an inner layer, a middle heat-insulating layer and an outer layer; the middle heat-insulating layers comprise two heat-insulating parts which are arranged at intervals;

the heat preservation part is made of polyurethane extruded foam, and the inner layer and the outer layer are both waterproof fabrics.

2. The food warming backpack of claim 1 wherein a first spacing zone of 40 to 60mm is provided between the two warming members, a second spacing zone of 40 to 80mm in width is provided between the warming members and the lower edges of the side surfaces, and a third spacing zone of 40 to 80mm in width is provided between the warming members and the upper edges of the side surfaces.

3. The food warming backpack according to claim 1 or 2, wherein the two warming members have a moving range of 5 to 10mm in a vertical direction.

4. The food warming backpack of claim 1, wherein a first reinforcing plate is disposed in a back of the backpack body, the first reinforcing plate having a height less than a height of the backpack body, the first reinforcing plate being disposed between the outer layer and the intermediate warming layer.

5. The food warming backpack of claim 1, wherein a second reinforcing plate is disposed in the bottom surface of the backpack body, the second reinforcing plate being the same size as the bottom surface of the backpack body, the second reinforcing plate being disposed between the outer layer and the inner layer.

6. The food heat-preservation backpack according to claim 1, wherein the waist support comprises a mesh fabric layer, a PE plate, a pearl cotton layer, a sponge layer and a waterproof fabric layer from inside to outside in sequence, and the shoulder strap comprises the mesh fabric layer, the pearl cotton layer, the sponge layer and the waterproof fabric layer from inside to outside in sequence.

7. The thermal knapsack as claimed in claim 1, wherein a first cushion is provided on a part of the surface of the back of said knapsack body, and a second cushion is provided on the bottom surface of said knapsack body.

8. The food warming backpack of claim 1, wherein the body and the cover are further provided with plastic snaps.

9. The food warming backpack of claim 2, further comprising a warming member, a temperature sensor and a power supply, wherein the warming member is a strip warming strip disposed in the second partitioned area of three sides except the back of the backpack body, and the power supply is disposed in the second partitioned area of the back of the backpack body.

10. The thermal backpack of claim 9 wherein said temperature sensor is centrally located on said rectangular bottom surface.

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