A seamless thermal pack

Abstract

The utility model relates to a seamless heat preservation bag belongs to the field of luggage technology, the heat preservation bag includes a heat preservation bag cavity and the opening of cavity is equipped with, the opening is equipped with the left and right heat preservation sheet structure that can make the opening close to close the heat preservation bag cavity opening and prevent the air circulation of heat preservation bag inside and outside, the left and right heat preservation sheet structure includes the left heat preservation sheet and the right heat preservation sheet that can be separated or can be connected together, the heat preservation bag cavity is formed by a piece of heat preservation sheet material or is formed by the cohering of several pieces of heat preservation sheet material, the heat preservation bag provided by the utility model sets up the left and right heat preservation sheet structure that can be mutually magnetic attraction and blocks the air passage of opening close place, can obtain better heat preservation effect compared with the prior art.

Description

Technical Field

[0001] This utility model relates to a seamless insulated bag, belonging to the field of luggage technology. Background Technology

[0002] Insulated bags are common items in daily life, widely used for purchasing necessities, business trips, and travel. Existing technologies commonly employ insulation methods for insulated bags, including using insulating materials to manufacture the bag body, coating the inner surface of the bag with insulating materials, using a fixed insulating layer on the bag body, or incorporating special insulating designs at the bag opening. For example, Chinese patent CN208129621U, entitled "A Zipper Strap and Insulated Zipper," discloses a zipper strap with a coating and protective layer on its body to block infrared radiation, effectively preventing infrared rays from passing through the strap and achieving insulation. However, air can still flow between the inside and outside of the bag through the gaps in the zipper teeth, leading to a decrease in insulation effectiveness. For example, Chinese patent CN222751583U, entitled "A Waterproof and Thermal Insulation Non-woven Tote Bag," discloses a waterproof and thermal insulation non-woven tote bag. It uses a sealing strip and Velcro to secure the bag to the inner wall's folds for insulation. However, since the Velcro itself is not an insulating material, and air can still flow between the inside and outside of the bag through the gaps, the insulation effect is reduced. Therefore, although most existing bag designs use insulating materials to ensure insulation, how to design an insulating structure at the bag opening to further ensure insulation remains a pressing technical problem. Furthermore, existing bags typically use stitching to fix the bag's perimeter and bottom, and air inevitably flows between the inside and outside through the stitches, reducing insulation. Therefore, there is an urgent need in this field for a seamless (sewn) thermal bag that can effectively prevent heat exchange between the air inside the bag and the outside through gaps or stitches at the bag's opening. Utility Model Content

[0003] The purpose of this invention is to solve the technical problem of how to obtain a seamless (sewn) insulated bag that can effectively prevent air inside the bag from exchanging heat with the outside through gaps or needle holes at the bag opening.

[0004] To address the aforementioned problems, the present invention provides a seamless thermal insulation bag, comprising a cavity and an opening thereon; the opening is provided with left and right thermal insulation sheet-like structures that can be closed to shut off the cavity and prevent airflow between the inside and outside of the bag; the left and right thermal insulation sheet-like structures include a detachable or connectable left and right thermal insulation sheet; the cavity is formed from a single thermal insulation sheet or from several thermal insulation sheets bonded together.

[0005] Preferably, a left insulation sheet and a right insulation sheet are provided on both sides of the opening, and a magnetic layer is provided on each side of the left insulation sheet and the right insulation sheet.

[0006] Preferably, the left and right insulation sheets are disposed on the same plane, and magnetic layers are provided on the corresponding sides of the left and right insulation sheets, and the left and right insulation sheets are connected to each other as a plane by magnetic attraction.

[0007] Preferably, the left and right insulation sheets are configured as an upper and lower layer structure; each of the corresponding sides of the left and right insulation sheets is provided with a magnetic layer; the left and right insulation sheets are magnetically connected to form an overlapping structure.

[0008] Preferably, the left and right insulation sheets are multi-layer composite materials, which include an insulation layer and a magnetic absorption layer.

[0009] Preferably, the magnetic layer comprises neodymium iron boron magnetic material.

[0010] Preferably, the insulation layer material comprising the multilayer composite material includes a polyurethane layer and an aerogel cloth.

[0011] Preferably, the opening is provided with other closing structures for closing the insulation pack cavity; the other closing structures are located on the side of the left and right insulation sheet structures away from the insulation pack cavity; the types of the other closing structures include zippers, Velcro, or magnetic strips.

[0012] Preferably, the left and right insulation sheets are provided with flexible support portions to prevent the insulation sheets from sagging.

[0013] Preferably, the insulation bag includes an insulation bag cavity formed by molding a single insulation sheet; or an insulation bag cavity formed by bonding and molding several insulation sheets; the entire cavity is seamless.

[0014] Preferably, the lengths of the left and right insulation sheets are not less than the length of the opening.

[0015] Preferably, the insulated bag can be used independently or as an accessory structure to other bags.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] This invention provides a seamless insulated bag with an insulation layer inside and a closable insulation sheet structure at the opening. By closing the insulation sheet, heat loss can be prevented by the air inside the bag exchanging heat with the outside through the gap at the opening after the bag is closed. Compared with the prior art, this invention can achieve better insulation effect. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the opening of the insulated bag with a zipper in this utility model;

[0019] Figure 2 This is a side view of the structure of the opening of the insulated bag with a zipper in this utility model. Figure 1 ;

[0020] Figure 3 This is a side view of the structure of the opening of the insulated bag with a zipper in this utility model. Figure 2 ;

[0021] Reference numerals: 1. Chain belt body; 2. Zipper teeth; 3. Left insulation sheet; 4. Right insulation sheet; 5. Flexible support part; 6. Magnetic layer. Detailed Implementation

[0022] To make this utility model more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings:

[0023] like Figure 1-3As shown, the present utility model provides a seamless thermal insulation bag, the thermal insulation bag comprises a thermal insulation bag cavity and an opening arranged on the cavity; the opening is provided with left and right thermal insulation sheet structures that can close the opening of the thermal insulation bag cavity and prevent air circulation between the inside and outside of the thermal insulation bag; the left and right thermal insulation sheet structures comprise a left thermal insulation sheet 3 and a right thermal insulation sheet 4 that can be separated or connected together; the thermal insulation bag cavity is formed by one thermal insulation sheet or bonded by a plurality of thermal insulation sheets. The two sides of the opening are respectively provided with a left thermal insulation sheet 3 and a right thermal insulation sheet 4, and the corresponding side of the left thermal insulation sheet 3 and the right thermal insulation sheet 4 is each provided with a magnetic attraction layer 6. The left thermal insulation sheet 3 and the right thermal insulation sheet 4 are arranged on the same plane, the corresponding side surfaces of the left thermal insulation sheet 3 and the right thermal insulation sheet 4 are provided with magnetic attraction layers 6, and the left thermal insulation sheet 3 and the right thermal insulation sheet 4 are connected into a plane by magnetic attraction. The left thermal insulation sheet 3 and the right thermal insulation sheet 4 are arranged in an upper-lower layer structure; the corresponding side surfaces of the left thermal insulation sheet 3 and the right thermal insulation sheet 4 are each provided with a magnetic attraction layer 6; the left thermal insulation sheet 3 and the right thermal insulation sheet 4 are connected by magnetic attraction into a structure with upper and lower parts overlapping. The left thermal insulation sheet 3 and the right thermal insulation sheet 4 are multi-layer composite materials, and the multi-layer composite materials comprise a thermal insulation layer and the magnetic attraction layer 6. The magnetic attraction layer 6 comprises neodymium iron boron magnetic material. The material types of the thermal insulation layer constituting the multi-layer composite material include polyurethane layer and aerogel cloth. The opening is provided with other closing structures for closing the cavity of the thermal insulation bag; the other closing structures are arranged on the side of the left and right thermal insulation sheet structures away from the cavity of the thermal insulation bag; the types of the other closing structures include zippers, hook and loop fasteners, or magnetic strips. The left thermal insulation sheet 3 and the right thermal insulation sheet 4 are provided with flexible supporting parts 5 for preventing the thermal insulation sheets from sagging. The thermal insulation bag comprises a thermal insulation bag cavity formed by compression molding of one thermal insulation sheet; or a thermal insulation bag cavity formed by bonding and compression molding of a plurality of thermal insulation sheets; there are no sewing stitches around the entire cavity. The length of the left thermal insulation sheet 3 and the right thermal insulation sheet 4 is not less than the length of the opening. The thermal insulation bag can be used independently or as an accessory structure of other bags.

[0024] Example

[0025] As Figure 1-3 As shown, the present utility model provides a seamless thermal insulation bag; an opening is arranged on the surface of the thermal insulation bag; a bag inner cavity wrapped by sheet-shaped thermal insulation materials is arranged inside the bag body of the thermal insulation bag;

[0026] In one embodiment, the cavity of the thermal insulation bag is formed by compression molding of one thermal insulation sheet, and there are no sewing stitches around the entire cavity; the thermal insulation sheet extends to the opening to form the opening on the surface of the thermal insulation bag;

[0027] In another embodiment, the cavity of the thermal insulation bag is formed by bonding and compression molding of a plurality of thermal insulation sheets, and there are no sewing stitches around the entire cavity; the thermal insulation sheet extends to the opening to form the opening on the surface of the thermal insulation bag;

[0028] As Figure 1 , Figure 2As shown, a zipper is provided at the opening of the insulated bag. The zipper includes a zipper body 1 and zipper teeth 2. Below the zipper, near the cavity of the insulated bag, there are left insulation sheet 3 and right insulation sheet 4 that allow the bag to close seamlessly (without gaps).

[0029] In one embodiment, the left insulation sheet 3 and the right insulation sheet 4 can overlap each other to block the airflow between the inside of the package and the outside.

[0030] The overlapping portions of the left insulation sheet 3 and the right insulation sheet 4 block the air passage formed between the inside of the bag and the outside through the gap between the closed zipper teeth 2; the insulation sheet material constituting the bag body is fixedly connected to the zipper body 1.

[0031] In one embodiment, the insulation sheet constituting the package is bonded to the left insulation sheet 3 and the right insulation sheet 4;

[0032] In another embodiment, the chain belt bodies 1 on both sides are bonded to the left insulation sheet 3 and the right insulation sheet 4, respectively.

[0033] The left insulation sheet 3 and the right insulation sheet 4 are multi-layer composite materials, which include an insulation layer and a magnetic layer 6. The magnetic layer 6 includes neodymium iron boron magnetic material. The insulation layer materials that make up the multi-layer composite material include a polyurethane layer and aerogel cloth; the left insulation sheet 3 and the right insulation sheet 4 overlap each other through magnetic adsorption.

[0034] In one embodiment, the left insulation sheet 3 and the right insulation sheet 4 may be provided with flexible support parts 5 to prevent the insulation sheets from sagging as needed; the flexible support parts 5 are elastic, short strip-shaped, and parallel to the zipper plane, and are intermittently arranged along the length direction of the left insulation sheet 3 and the right insulation sheet 4; the flexible support parts 5 are bonded to one side of the left insulation sheet 3 and the right insulation sheet 4.

[0035] The lengths of the left insulation sheet 3 and the right insulation sheet 4 are greater than the length of the opening;

[0036] The above-mentioned thermal insulation bag structure can be used independently or as an auxiliary structure for other bags.

[0037] In another embodiment, such as Figure 3 The left insulation sheet 3 and the right insulation sheet 4 are located on the same plane. The corresponding sides of the left insulation sheet 3 and the right insulation sheet 4 are provided with magnetic layers 6. The left insulation sheet 3 and the right insulation sheet 4 are connected to the same plane by magnetic attraction.

[0038] In another embodiment, a Velcro closure is provided at the opening of the thermal pack, and a left thermal pack 3 and a right thermal pack 4, which are magnetically connected and allow the pack to be closed seamlessly, are provided on the side below the Velcro closure near the cavity of the thermal pack.

[0039] Use of this utility model:

[0040] When using, first unzip the insulated bag, reach in to separate the left insulation panel 3 and the right insulation panel 4, then enter the bag to retrieve the item. When you take out the desired item, remove your hand from the bag, and the left insulation panel 3 and the right insulation panel 4 will close magnetically. Then, pull the zipper closed. The left insulation panel 3 and the right insulation panel 4 overlap each other to block air from passing through the gaps in the zipper teeth 2, thereby improving the insulation effect.

[0041] The above description is merely a preferred embodiment of this utility model and is not intended to limit this utility model in any form or substance. It should be noted that those skilled in the art can make various improvements and additions without departing from this utility model, and these improvements and additions should also be considered within the protection scope of this utility model. Any modifications, alterations, and equivalent changes made by those skilled in the art without departing from the spirit and scope of this utility model using the disclosed technical content are equivalent embodiments of this utility model. Furthermore, any modifications, alterations, and evolutions made to the above embodiments based on the essential technology of this utility model are still within the scope of the technical solution of this utility model.

Claims

1. A seamless thermal insulation bag, characterized in that, The thermal insulation pack includes a thermal insulation pack cavity and an opening on the cavity; the opening is provided with left and right thermal insulation sheet-like structures that can be closed to shut off the opening of the thermal insulation pack cavity and prevent air circulation between the inside and outside of the thermal insulation pack; the left and right thermal insulation sheet-like structures include a left thermal insulation sheet and a right thermal insulation sheet that can be separated or connected together; the thermal insulation pack cavity is formed by a single thermal insulation sheet or by bonding several thermal insulation sheets together.

2. The seamless thermal insulation bag according to claim 1, characterized in that, The opening is provided with a left insulation sheet and a right insulation sheet on both sides, and a magnetic layer is provided on each side of the left insulation sheet and the right insulation sheet.

3. The seamless thermal insulation bag according to claim 1, characterized in that, The left and right insulation sheets are located on the same plane, and magnetic layers are provided on the corresponding sides of the left and right insulation sheets. The left and right insulation sheets are connected to each other on the same plane by magnetic attraction.

4. A seamless thermal insulation bag according to claim 2, characterized in that, The left and right insulation sheets are configured as an upper and lower layer structure; each of the corresponding sides of the left and right insulation sheets is provided with a magnetic layer; the left and right insulation sheets are connected by magnetic attraction to form an overlapping structure.

5. A seamless thermal insulation bag according to claim 1, characterized in that, The left and right insulation sheets are multi-layer composite materials, which include an insulation layer and a magnetic absorption layer.

6. A seamless thermal insulation bag according to claim 2, characterized in that, The magnetic layer includes neodymium iron boron magnetic material.

7. A seamless thermal insulation bag according to claim 5, characterized in that, The insulation layer materials that make up the multilayer composite material include a polyurethane layer and aerogel cloth.

8. A seamless thermal insulation bag according to claim 1, characterized in that, The opening is provided with other closing structures for closing the insulation pack cavity; the other closing structures are located on the side of the left and right insulation sheet structures away from the insulation pack cavity; the types of the other closing structures include zippers, Velcro, or magnetic strips.

9. A seamless thermal insulation bag according to claim 1, characterized in that, The left and right insulation sheets are provided with flexible support parts to prevent the insulation sheets from sagging.

10. A seamless thermal insulation bag according to claim 1, characterized in that, The insulation pack includes an insulation pack cavity formed by molding a single insulation sheet; or an insulation pack cavity formed by bonding and molding several insulation sheets; the entire cavity is seamless.

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