Large-capacity storage bag

Abstract

The utility model provides a large-capacity storage bag which comprises a sealed bag body defined by connecting a front main bag surface, a rear main bag surface, a left bag side surface and a right bag side surface, and longitudinal folds are arranged on the bag side surfaces, so that foldable expansion parts are formed on the left side and the right side of the bag body. An opening is formed between one bag side face and the main bag face on one side, an opening and closing type sealing structure is arranged at the opening, and a one-way exhaust valve is arranged on one main bag face. According to the storage bag, the bag body structure is optimized, the foldable expansion parts are arranged on the left side and the right side of the bag body, the internal capacity of the bag body is increased, gas in the bag body can be discharged outwards in a one-way mode due to the arrangement of the one-way exhaust valve, and therefore the packaging size of the whole storage bag after articles are stored in the bag body is greatly reduced, and storage and transportation are facilitated.

Description

A large-capacity storage bag Technical Field

[0001] This utility model relates to a large-capacity storage bag. Background Technology

[0002] When traveling, people typically need to carry a large number of necessities and often add more items during the trip, making large-capacity storage bags particularly important. However, existing storage bags only have a foldable extension at the bottom, and their internal capacity is still insufficient to meet people's needs. Furthermore, excess air can accumulate inside the bag during storage and use, taking up a lot of space; therefore, current technology needs further improvement and development. Summary of the Invention

[0003] To address the shortcomings mentioned above, this utility model provides a large-capacity storage bag.

[0004] To achieve the above objectives, this utility model provides a large-capacity storage bag, comprising a sealed bag body formed by connecting a front and rear main bag face, and left and right bag sides. The bag sides have longitudinal creases to create foldable extensions on both sides of the bag body. One of the bag sides has an opening between itself and one of the main bag faces, with an opening-and-closing sealing structure at the opening. One of the main bag faces has a one-way exhaust valve, which includes a connecting seat, a rotating cover, and an air plug located between the connecting seat and the rotating cover. The connecting seat is provided with a vent hole, and the upper wall surface is provided with a sleeve portion around the vent hole. The rotating cover is rotatably connected to the sleeve portion and is provided with an abutment ring portion corresponding to the air plug. The upper wall surface is provided with multiple exhaust holes around the abutment ring portion. Rotating the rotating cover axially moves it inward until the abutment ring portion abuts against the upper wall surface of the air plug, thereby fixing the relative position of the air plug and the connecting seat to block the flow between the vent hole and the exhaust hole. Rotating the rotating cover axially moves it outward until the abutment ring portion leaves the upper wall surface of the air plug. Under the positive pressure inside the bag, the air plug can move outward to open the flow between the vent hole and the exhaust hole.

[0005] Furthermore, the opening and closing sealing structure includes multiple sealing strips disposed at the opening and cooperating with each other.

[0006] Furthermore, the outer wall of the sleeve portion is uniformly provided with a plurality of threaded grooves, the threaded grooves including a front groove section, a spiral groove section, and a rear groove section. The front groove section and the rear groove section are arranged in parallel and are respectively located at both ends of the spiral groove section. The inner wall of the rotating cover is provided with a threaded protrusion that cooperates with the threaded groove. When the rotating cover is rotated until the threaded protrusion is engaged in the front groove section, the abutting ring moves axially inward to the lowest point and abuts against the upper wall of the air plug. When the rotating cover is rotated until the threaded protrusion is engaged in the rear groove section, the abutting ring moves axially outward to the highest point to maximize the distance between it and the upper wall of the connecting seat.

[0007] Furthermore, the upper end of the outer wall surface of the sleeve portion is provided with an extension portion, and the extension portion is provided with a notch groove corresponding to each screw groove. The notch groove is connected to one end of the spiral groove section. The inner side wall of the rotating cover is provided with an elastic buckle, which cooperates with the extension portion to restrict the rotating cover from disengaging from the connecting seat when rotating.

[0008] Furthermore, the connecting seat is fixedly connected to one side of the bag body with an anti-clogging component. The anti-clogging component includes an inner ring, an outer ring, and multiple connecting strips connecting the two. The center lines of the inner ring, the outer ring, and the vent are on the same straight line. The outer ring is fixedly connected to the connecting seat. There is a flow gap between the inner ring and the connecting seat, and the inner diameter is smaller than the diameter of the vent. The air plug is provided with a connecting cylinder part that cooperates with the inner ring. The connecting cylinder part is in clearance fit with the inner ring.

[0009] Furthermore, the upper wall of the connecting seat is provided with an annular boss between the vent hole and the sleeve portion.

[0010] Furthermore, the upper wall of the connecting seat is provided with an annular groove outside the sleeve portion.

[0011] Furthermore, one of the main bag surfaces is provided with a handle, which is fixed by sewing.

[0012] Furthermore, the main bag surface and the bag side surface each include at least one waterproof plastic layer and one polyester base fabric layer, wherein the waterproof plastic layer is disposed inside the polyester base fabric layer and the two are fixedly connected as one.

[0013] The advantages of this utility model over the prior art are as follows: This utility model optimizes the bag structure, with foldable extensions on the left and right sides of the bag, increasing the internal capacity of the bag, and the one-way exhaust valve allows the gas inside the bag to be discharged outward in one direction, thereby greatly reducing the overall packaging volume of the storage bag after items are stored inside, so as to facilitate storage and transportation. Attached Figure Description

[0014] Figure 1 is a plan view of a large-capacity storage bag according to this utility model;

[0015] Figure 2 is a 3D view of the storage bag (excluding the one-way exhaust valve) involved in this solution;

[0016] Figure 3 is an exploded view of the one-way exhaust valve involved in this scheme;

[0017] Figure 4 is a perspective view of the connector involved in this solution;

[0018] Figure 5 is a perspective view of the rotating cover involved in this solution;

[0019] Figure 6 is a three-dimensional view of the air plug involved in this solution. Detailed Implementation

[0020] As shown in Figures 1 and 2, a large-capacity storage bag according to an embodiment of the present invention includes a sealed bag body 1 formed by connecting a main bag face 2 on the front and back sides and bag side faces 3 on the left and right sides. The main bag face 2 and bag side faces 3 each include at least one waterproof plastic layer and a polyester base fabric layer. The waterproof plastic layer is disposed inside the polyester base fabric layer and the two are fixedly connected as one. The waterproof plastic layer disposed inside makes the bag body 1 waterproof, while the polyester base fabric layer disposed outside makes the bag body 1 wear-resistant and aesthetically pleasing, which better meets the needs of consumers.

[0021] Furthermore, as shown in Figures 1 and 2, the side 3 of the bag in this embodiment has a longitudinal crease, so that the left and right sides of the bag body 1 form foldable extensions. When in use, the extensions on the left and right sides of the bag body 1 can be unfolded to increase the internal capacity of the bag body 1. The longitudinal crease can be selected as the center line of the side 3 of the bag, so that the extensions on the left and right sides are folded between the front and rear main bag surfaces 2. An opening 1-1 is provided between one side 3 of the bag and one side of the main bag surface 2, and an opening and closing sealing structure 4 is provided at the opening 1-1. Users can store items by opening and closing the opening and closing sealing structure 4. The opening and closing sealing structure 4 can be multiple sealing strips provided at the opening 1-1 and cooperating with each other. The structure is simple and easy to use. It can also be a zipper, chain structure, or other existing opening and closing sealing structure.

[0022] Further, as shown in Figures 1, 2, and 3, a one-way exhaust valve 5 is provided on one of the main bag surfaces 2 in this embodiment. The one-way exhaust valve 5 includes a connecting seat 6, a rotating cover 7, and an air plug 8. The connecting seat 6 has a vent hole 6-1, and a sleeve portion 6-2 is provided around the vent hole 6-1 on the upper wall. The connecting seat 6 is heat-fused to the main bag surface 2, and the sleeve portion 6-2 extends out of the bag body 1. The rotating cover 7 is rotatably connected to the sleeve portion 6-2, and a corresponding abutment ring portion 7-1 is provided for the air plug 8. Multiple exhaust holes 7-2 are provided around the abutment ring portion 7-1 on the upper wall. The air plug 8 is located between the connecting seat 6 and the rotating cover 7, and is acted upon by the abutment ring portion 7-1 to allow the vent hole 6-1 and the exhaust hole to pass through. 7-2 Switches between blocking and one-way venting; when in use, rotate the rotating cover 7 axially inward until the abutting ring 7-1 abuts against the upper wall of the air plug 8 to fix the relative position of the air plug 8 and the connecting seat 6, thereby blocking the flow between the vent 6-1 and the exhaust hole 7-2. Rotate the rotating cover 7 axially outward until the abutting ring 7-1 leaves the upper wall of the air plug 8. The air plug 8 can open the flow between the vent 6-1 and the exhaust hole 7-2 by squeezing the bag body 1 and moving outward under the positive pressure inside the bag body 1. If the bag body 1 is not squeezed, the inner wall of the air plug 8 abuts against the connecting seat 6 under atmospheric pressure to block the flow between the vent 6-1 and the exhaust hole 7-2.

[0023] Further, as shown in Figures 1, 3, and 5, the outer wall of the sleeve portion 6-2 in this embodiment is uniformly provided with a plurality of threaded grooves 6-21. The threaded grooves 6-21 include a front groove section 6-211, a spiral groove section 6-212, and a rear groove section 6-213. The front groove section 6-211 and the rear groove section 6-213 are arranged in parallel and are located at both ends of the spiral groove section 6-212, respectively. The inner wall of the rotating cover 7 is provided with a threaded protrusion 7-3 that cooperates with the threaded grooves 6-21. When the rotating cover 7 is rotated until the threaded protrusion 7-3 is engaged in the front groove section 6-211, the abutment ring portion 7-1 moves axially inward to the lowest point and abuts against the upper wall of the air plug 8. The air plug 8 and The relative position of the connecting seat 6 is fixed, and the flow between the vent 6-1 and the exhaust port 7-2 is blocked. Rotating the rotating cover 7 until the screw-in protrusion 7-3 exits the front groove section 6-211 and enters the spiral groove section 6-212 increases the distance between the abutting ring 7-1 and the upper wall of the connecting seat 6. The space for the axial movement of the air plug 8 gradually increases. The air plug 8 can be pushed outward by squeezing the bag body 1 and the positive pressure inside the bag body 1 to exhaust the air. When rotating the rotating cover 7 until the screw-in protrusion 7-3 is locked into the rear groove section 6-213, the abutting ring 7-1 moves axially outward to the highest position to maximize the distance between it and the upper wall of the connecting seat 6, thus ensuring maximum exhaust.

[0024] Further, as shown in Figures 3, 4, and 5, the upper end of the outer wall surface of the sleeve portion 6-2 in this embodiment is provided with an extension portion 6-3. The extension portion 6-3 is provided with a notch 6-31 corresponding to each screw groove 6-21. The notch 6-31 communicates with one end of the spiral groove section 6-212. The inner side wall of the rotating cover 7 is provided with an elastic buckle 7-4, which cooperates with the extension portion 6-3. During assembly, the screw protrusion 7-3 on the rotating cover 7 is aligned with the notch 6-31 one by one, and pressed down so that the elastic buckle 7-4 is fastened to the lower end of the extension portion 6-3. At the same time, the screw protrusion 7-3 slides from the notch 6-31 into the spiral groove section 6-212. The elastic buckle 7 cooperates with the extension portion 422, which can prevent the screw protrusion 6 from sliding out of the notch 4221 when rotating, that is, restrict the rotating cover 5 from disengaging from the connecting seat 4 when rotating.

[0025] Furthermore, as shown in Figures 1 and 3, in this embodiment, the upper wall of the connecting seat 6 is provided with an annular boss 6-4 between the vent hole 6-1 and the sleeve portion 6-2. The outer diameter of the air plug 8 is larger than the outer diameter of the annular boss 6-4, and it cooperates with the annular boss 6-4 to block the flow between the vent hole 6-1 and the exhaust hole 7-2. At the same time, the upper wall of the connecting seat 6 is provided with an annular groove 6-5 outside the sleeve portion 6-2, which increases the heat fusion connection area between the connecting seat 6 and the main bag surface 2 and strengthens the local connection strength.

[0026] Furthermore, as shown in Figures 1, 3, 4, and 6, in this embodiment, the connecting seat 6 is fixedly connected to one side of the bag body 1 with an anti-blocking component 9. The anti-blocking component 9 includes an inner ring 10, an outer ring 11, and multiple connecting strips 12 connecting the two. The axis of the inner ring 10, the outer ring 11, and the vent 6-1 are on the same straight line. The outer ring 11 is fixedly connected to the connecting seat 6. There is a flow gap between the inner ring 10 and the connecting seat 6, and the inner diameter is smaller than the diameter of the vent 6-1. The anti-blocking component 9 can prevent the main bag surface 2 of the bag body 1 from blocking the vent 41 during the exhaust process, ensuring the smoothness of the exhaust. In addition, the air plug 8 is provided with a connecting cylinder part 8-1 that cooperates with the inner ring 10. The connecting cylinder part 8-1 is in clearance fit with the inner ring 10 so that the air plug 8 can move outward along the axial direction of the inner ring 10.

[0027] Furthermore, as shown in Figure 1, a handle 13 is provided on one of the main bag surfaces 2 in this embodiment. The handle 13 is fixed by sewing, which makes it convenient to lift and put down, and is firm and will not break.

[0028] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A large-capacity storage bag, characterized in that: The bag body (1) is a sealed bag formed by connecting the front and rear main bag faces (2) and the left and right bag sides (3). The bag sides (3) are provided with longitudinal creases so that the left and right sides of the bag body (1) form foldable extensions. One of the bag sides (3) is provided with an opening (1-1) between it and one of the main bag faces (2), and an opening and closing sealing structure (4) is provided at the opening (1-1). One of the main bag faces (2) is provided with a one-way exhaust valve (5). The one-way exhaust valve (5) includes a connecting seat (6), a rotating cover (7), and an air plug (8) provided between the connecting seat (6) and the rotating cover (7). The connecting seat (6) is provided with a vent hole (6-1), and the upper wall is provided with a vent hole (6-1). There is a sleeve part (6-2), the rotating cover (7) is rotatably connected to the sleeve part (6-2) and the corresponding air plug (8) is provided with an abutment ring part (7-1), and the upper wall surface is provided with multiple exhaust holes (7-2) around the abutment ring part (7-1); the rotating cover (7) is rotated and moved axially inward until the abutment ring part (7-1) abuts against the upper wall surface of the air plug (8) to fix the relative position of the air plug (8) and the connecting seat (6) to block the flow between the vent hole (6-1) and the exhaust hole (7-2); the rotating cover (7) is rotated and moved axially outward until the abutment ring part (7-1) leaves the upper wall surface of the air plug (8), and the air plug (8) can move outward under the positive pressure inside the bag body (1) to open the flow between the vent hole (6-1) and the exhaust hole (7-2).

2. A large capacity storage bag according to claim 1, wherein: The opening and closing sealing structure (4) includes multiple sealing strips that are provided at the opening (1-1) and cooperate with each other.

3. The large capacity storage bag of claim 1, wherein: The outer wall of the sleeve portion (6-2) is uniformly provided with a plurality of threaded grooves (6-21). The threaded grooves (6-21) include a front groove section (6-211), a spiral groove section (6-212), and a rear groove section (6-213). The front groove section (6-211) and the rear groove section (6-213) are arranged in parallel and are respectively located at both ends of the spiral groove section (6-212). The inner wall of the rotating cover (7) is provided with a groove that cooperates with the threaded grooves (6-21) to... The screw-in protrusion (7-3) is used; when the rotating cover (7) is rotated until the screw-in protrusion (7-3) is engaged in the front groove section (6-211), the abutting ring (7-1) moves axially inward to the lowest point and abuts against the upper wall of the air plug (8); when the rotating cover (7) is rotated until the screw-in protrusion (7-3) is engaged in the rear groove section (6-213), the abutting ring (7-1) moves axially outward to the highest point, so as to maximize the distance between it and the upper wall of the connecting seat (6).

4. A large capacity storage bag according to claim 3, wherein: The upper end of the outer wall surface of the sleeve part (6-2) is provided with an extension part (6-3). The extension part (6-3) is provided with a notch (6-31) corresponding to each screw groove (6-21). The notch (6-31) is connected to one end of the spiral groove section (6-212). The inner side wall of the rotating cover (7) is provided with an elastic buckle (7-4). The elastic buckle (7-4) cooperates with the extension part (6-3) to restrict the rotating cover (7) from disengaging from the connecting seat (6) when rotating.

5. A large-capacity storage bag according to any one of claims 1 to 4, characterized in that: The connecting seat (6) is fixedly connected to an anti-blocking component (9) on one side inside the bag body (1). The anti-blocking component (9) includes an inner ring (10), an outer ring (11), and multiple connecting strips (12) connecting the two. The axis of the inner ring (10), the outer ring (11), and the vent (6-1) are on the same straight line. The outer ring (11) is fixedly connected to the connecting seat (6). There is a flow gap between the inner ring (10) and the connecting seat (6), and the inner diameter is smaller than the diameter of the vent (6-1). The air plug (8) is provided with a connecting cylinder (8-1) that cooperates with the inner ring (10). The connecting cylinder (8-1) is in clearance fit with the inner ring (10).

6. The large capacity storage bag of claim 1, wherein: The upper wall of the connecting seat (6) is provided with an annular boss (6-4) between the vent hole (6-1) and the sleeve part (6-2).

7. A large capacity storage bag according to claim 1 or 6, wherein: The upper wall of the connecting seat (6) is provided with an annular groove (6-5) outside the sleeve part (6-2).

8. The large capacity storage bag of claim 1, wherein: One of the main bag faces (2) is provided with a handle (13), which is fixed by sewing.

9. A large capacity storage bag according to claim 1 or 8, wherein: The main bag surface (2) and the bag side surface (3) each include at least one waterproof plastic layer and one polyester base fabric layer. The waterproof plastic layer is located inside the polyester base fabric layer and the two are fixedly connected as one.

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