Cold and hot compress bag with recessed lid

Abstract

Provided is a cold and hot compress bag with a recessed lid, comprising: a bag body (1), the bag body (1) having a filling port with internal threads; and a lid (2) having external threads (4) on an outer wall of the lid (2) for engaging with the internal threads in the filling port. The lid (2) is screwed into the filling port by means of the external threads (4) and the internal threads in the filling port. An upper surface of the lid (2) is provided with a recessed groove (2-1), and the recessed groove (2-1) is provided with a handle portion (2-4). Beneficial effects are that by means of designing the handle portion (2-4) of the lid (2) in a recessed manner, the handle portion (2-4) can protrude minimally from or does not protrude from the lid (2) while enabling convenient rotation of the lid (2) by the handle portion (2-4). When the lid (2) is adapted to the cold and hot compress bag designed with the filling port flush with or recessed relative to the bag body (1), the entire cold and hot compress bag exhibits no significant protrusions, thereby improving user experience and aesthetic appearance.

Description

Hot and cold packs with recessed lids Technical Field

[0001] The present invention relates to the technical field of hot and cold compress bags, in particular to a hot and cold compress bag with an inwardly concave cover. Background Art

[0002] The injection port of the hot and cold compress bag is sealed by a lid 2, which is threadedly matched with the injection port. The lid 2 includes a lid ring portion 2-2, and an outer thread 4 is provided on the outer wall of the lid ring portion 2-2 for matching with the inner thread in the injection port. In order to facilitate the rotation operation of the lid 2, a rotating operation structure for rotating the lid 2 needs to be designed on the upper surface of the lid 2.

[0003] According to the different rotation operation structures, in the prior art, the covers 2 of hot and cold compress bags are of the following three types.

[0004] The cover 2 of the first hot and cold compress bag is shown in FIG1 , and has a high raised handle portion 2-4 on the upper surface of the cover 2 for rotating the cover 2. The high raised handle portion 2-4 is not only unfavorable for appearance, but also affects the user experience of hot and cold compress.

[0005] The lid 2 of the second type of hot and cold compress pack, as shown in Figures 2 and 3, has a handle 2-4 hingedly connected to the lid 2 at its bottom. When the lid 2 is not rotating, the handle 2-4 can be folded to one side, lowering the height of the lid 2 from the bag body. Although this type of lid 2 can fold the handle 2-4 when not in use, the hinged design complicates the structure of the lid 2, reduces reliability, and increases cost.

[0006] The third type of hot or cold compress bag lid 2, shown in Figure 4, has a radially protruding, partially enlarged portion on the outside of the lid 2, which facilitates rotation by gripping the partially enlarged portion. This type of lid 2, with its rotational position located on the side of the lid 2, is only suitable for hot or cold compress bags whose inlet protrudes from the bag body. If the inlet is flush or substantially flush with the bag body, it becomes difficult to grip the partially enlarged portion on the outside of the lid 2, making it difficult to rotate the lid 2. Summary of the Invention

[0007] The technical problem to be solved by the present invention is that the lid of the existing hot and cold compress bag has a high raised handle for rotating the lid. The high raised handle not only affects the user experience of the hot and cold compress bag, but also is not conducive to the appearance.

[0008] The technical solution adopted by the present invention to solve its technical problems is: a hot and cold compress bag with an inwardly concave lid, comprising: a bag body, the bag body having an injection port, the injection port having an internal thread; a lid, the outer wall of the lid having an external thread for cooperating with the internal thread in the injection port, the lid being screwed into the injection port through the external thread and the internal thread, the upper surface of the lid having an internal groove, the internal groove having a handle portion.

[0009] It is further defined that the lid includes a cover ring portion, an end cover portion and a handle portion, the cover ring portion is in a circular ring shape, the external thread is located on the outer wall of the cover ring portion, and the end cover portion is located in the inner hole of the cover ring portion. While closing the inner hole of the cover ring portion, an inner groove is separated in the inner hole of the cover ring portion.

[0010] It is further defined that the upper end of the outer wall of the lid ring portion has an outwardly protruding flange, which contacts and seals the bag body when the lid is tightened.

[0011] It is further defined that the handle portion is a straight or curved flat handle extending upward from the bottom of the inner groove.

[0012] It is further defined that two ends of the handle portion are connected to the inner wall of the inner groove as a whole.

[0013] It is further defined that the center of the inner groove, the center of the handle portion and the rotation center of the cover are concentric.

[0014] It is further defined that the handle portion is a straight flat handle extending upward from the bottom of the inner groove, dividing the inner cavity of the inner groove into two independent and symmetrical inner cavities.

[0015] It is further defined that the cover ring portion, the end cover portion and the handle portion are indivisible and integral.

[0016] It is further defined that the handle portion has a hollow inner cavity, and the opening of the hollow inner cavity is located on the lower surface of the end cover portion.

[0017] It is further defined that the hollow inner cavity also has reinforcing ribs.

[0018] The beneficial effects of the present invention are as follows: the handle portion of the lid is designed to be concave, and while the lid can be rotated conveniently by the handle portion, the handle portion can protrude as little as possible or even not protrude from the lid. After adapting to the hot and cold compress bag with the injection port flush or concave in the bag body, the hot and cold compress bag as a whole has no particularly protruding parts, which provides a better user experience and a more beautiful appearance. In order to provide an external thread, the lid of the hot and cold compress bag must have a cover ring portion of sufficient height. The design of the present invention fully utilizes the inner hole space of the cover ring portion, has a reasonable structure, and is convenient for injection molding. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings and examples;

[0020] FIG1 is a schematic structural diagram of a first type of cover in the prior art;

[0021] FIG2 is a schematic structural diagram of a second type of lid in the prior art, with the handle portion in an open state;

[0022] FIG3 is a schematic structural diagram of a second type of lid in the prior art, wherein the handle portion is in a folded state;

[0023] FIG4 is a schematic structural diagram of a third type of lid in the prior art;

[0024] FIG5 is a schematic structural diagram of the cover of the present invention from a three-dimensional perspective;

[0025] FIG6 is a schematic structural diagram of the cover of the present invention from another three-dimensional perspective;

[0026] FIG7 is a schematic structural diagram of the cover of the present invention from a top view;

[0027] FIG8 is a cross-sectional view taken along line AA of FIG7 ;

[0028] FIG9 is a schematic structural diagram of a hot or cold compress bag equipped with a cover of the present invention;

[0029] In the figure, 1. bag body, 2. lid, 2-1. inner groove, 2-2. lid ring, 2-3. end cover, 2-4. handle, 2-4-1. hollow inner cavity, 2-5. flange, 3. reinforcing ribs, 4. external thread, 5. sealing convex ring. DETAILED DESCRIPTION

[0030] As shown in Figures 5 to 9, a hot and cold compress bag with an inwardly concave lid comprises: a bag body 1, the bag body 1 having an injection port, and the injection port having an internal thread; a lid 2, the outer wall of the lid 2 having an external thread 4 for cooperating with the internal thread in the injection port, the lid 2 being screwed into the injection port via the external thread 4 and the internal thread in the injection port, the upper surface of the lid 2 having an internal groove 2-1, and the internal groove 2-1 having a handle portion 2-4.

[0031] The lid 2 includes a lid ring portion 2-2, an end cover portion 2-3 and a handle portion 2-4. The lid ring portion 2-2 is annular, and the external thread 4 is located on the outer wall of the lid ring portion 2-2. The end cover portion 2-3 is located in the inner hole of the lid ring portion 2-2. While closing the inner hole of the lid ring portion 2-2, an inner groove 2-1 is separated in the inner hole of the lid ring portion 2-2.

[0032] The upper end of the outer wall of the cover ring 2-2 has an outwardly protruding flange 2-5. When the lid 2 is tightened, a contact seal is formed between the lower surface of the flange 2-5 and the bag body 1. The lower surface of the flange 2-5 has a sealing convex ring 5 for ensuring the sealing effect.

[0033] The handle portion 2-4 is a straight or curved flat handle extending upward from the bottom of the inner groove 2-1. The handle portion 2-4 shown in Figures 5 to 9 is a straight flat handle, and the top of the handle portion 2-4 slightly protrudes from the upper end of the cover ring portion 2-2.

[0034] Preferably, both ends of the handle portion 2-4 are integrally connected to the inner wall of the inner groove 2-1. The center of the inner groove 2-1, the center of the handle portion 2-4, and the rotation center of the lid 2 are concentric. The straight flat handle portion divides the inner cavity of the inner groove 2-1 into two independent and symmetrical inner cavities.

[0035] The cover ring portion 2-2, the end cover portion 2-3 and the handle portion 2-4 are indivisible and integrally formed and can be integrally formed by injection molding.

[0036] In Figures 5 to 8, the handle portion 2-4 has a hollow inner cavity 2-4-1, and the opening of the hollow inner cavity 2-4-1 is located on the lower surface of the end cover portion 2-3.

[0037] The hollow inner cavity 2-4-1 also has vertical reinforcing ribs 3 for reinforcing the strength of the hollow handle portion 2-4.

[0038] The outer end of the inlet of the cold and hot compress bag of the present invention, shown in Figure 9, is flush with the outer wall of the bag. It is designed for use around the neck for applying cold or hot compresses. The cold and hot compress bag has no prominent protruding parts, providing a better user experience and a more aesthetically pleasing appearance. The inlet of the bag can also be recessed into the outer wall of the bag.

[0039] The hot and cold compress bag with an inlet of the present invention is also known as a hot and cold compress water bag, hot water bag, or ice pack. Cold water or an ice-water mixture, a phase-change material, or hot water can be injected into the bag through the inlet to apply a cold or hot compress. The phase-change material in the cold compress absorbs heat and becomes liquid upon contact with human body temperature, achieving a cooling effect. After cooling in a refrigerator or air-conditioned environment, it becomes solid again, storing cold energy.

[0040] The above embodiments are only preferred embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the protection scope of the present invention.

[0041] For example, the two ends of the handle portion 2-4 are not connected to the inner wall of the inner groove 2-1, and are disconnected from each other. For another example, the handle portion 2-4 is not hollow, and so on.

Claims

1. A hot or cold compress bag with a concave cover, characterized in that: include: A bag body (1), wherein the bag body (1) has an injection port, and the injection port has an internal thread; A cover (2) is provided with an external thread (4) on the outer wall of the cover (2) for cooperating with the internal thread in the injection port. The cover (2) is screwed into the injection port via the external thread (4) and the internal thread. The upper surface of the cover (2) has an internal groove (2-1), and the internal groove (2-1) has a handle portion (2-4).

2. The hot and cold compress bag with a concave cover according to claim 1, characterized in that: The lid (2) comprises a lid ring portion (2-2), an end cover portion (2-3) and the handle portion (2-4). The cover ring portion (2-2) is annular, and the external thread (4) is located on the outer wall of the cover ring portion (2-2). The end cover portion (2-3) is located in the inner hole of the cover ring portion (2-2), and while closing the inner hole of the cover ring portion (2-2), an inner groove (2-1) is separated in the inner hole of the cover ring portion (2-2).

3. The hot and cold compress bag with a concave cover according to claim 2, characterized in that: The upper end of the outer wall of the cover ring portion (2-2) is provided with a flange (2-5) protruding outward.

4. The hot and cold compress bag with a concave cover according to claim 1, characterized in that: The handle portion (2-4) is a straight or curved flat handle, extending upward from the bottom of the inner groove (2-1).

5. The hot and cold compress bag with a concave cover according to claim 1, characterized in that: Both ends of the handle portion (2-4) are integrally connected to the inner wall of the inner groove (2-1).

6. The hot and cold compress bag with a concave cover according to claim 1, characterized in that: The center of the inner groove (2-1), the center of the handle portion (2-4) and the rotation center of the cover (2) are concentric.

7. The hot and cold compress bag with a concave cover according to claim 1, characterized in that: The handle portion (2-4) is a straight flat handle, extending upward from the bottom of the inner groove (2-1), dividing the inner cavity of the inner groove (2-1) into two independent and symmetrical inner cavities.

8. The hot and cold compress bag with a concave cover according to claim 2, characterized in that: The cover ring portion (2-2), the end cover portion (2-3) and the handle portion (2-4) are in an inseparable integral form.

9. The hot and cold compress bag with a concave cover according to claim 2, characterized in that: The handle portion (2-4) has a hollow inner cavity (2-4-1), and the opening of the hollow inner cavity (2-4-1) is located on the lower surface of the end cover portion (2-3).

10. The hot and cold compress bag with a concave cover according to claim 9, characterized in that: The hollow inner cavity (2-4-1) also has reinforcing ribs (3).

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