A backpack with a flip cover

Abstract

The utility model belongs to the technical field of flip backpack, specifically discloses a flip backpack, is mainly used for outdoor bag and the like backpack, including the bag body with the opening and the flip connected on the bag body to cover the opening, the flip end is provided with the collection rope fixedly connected with the bag body through the adjusting buckle, the collection rope is under the action of first external force, is in the tight state, and the flip covers the opening and is locked with the bag body, the flip is under the action of second external force, drives the collection rope to move and is in the state of loosening, and the flip is away from the bag body and is unlocked with the bag body. The utility model cooperates through the adjusting buckle and the like, makes the flip can be under the action of one external force, and one step is completed locking, improves work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of control technology for flap backpacks, and more particularly to a flap backpack. Background Technology

[0002] Most flap backpacks on the market currently use buckles to secure the flap, while a few use hooks or magnets or other methods. The disadvantage of buckle connections is that you usually need to hold the female buckle with one hand and the female buckle with the other to unlock it, requiring both hands to operate. Hook and loop connections typically require aligning the hook with the webbing or rope loop; when tightening the flap, you need to connect the buckle to the flap first, and then tighten the webbing or rope.

[0003] In summary, when backpacks require adjustment using two common methods, the following issues arise: First, when the backpack flap needs to be tightened, the backpack buckle and flap must be connected first, and then the tightening adjustment must be made. The whole process requires two actions, which is cumbersome.

[0004] Secondly, when the backpack flap needs to be opened, the buttons and flap must be separated first, and then the backpack flap must be opened. This requires two actions, which is inefficient. Utility Model Content

[0005] The purpose of this utility model is to provide a flip-top backpack, which, through the cooperation of the adjustable buckle, allows the drawstring to present different states when subjected to different forces, thereby completing the locking and unlocking of the flip-top.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution.

[0007] A flap backpack includes a bag body with an opening and a flap attached to the bag body to cover the opening. The flap has a drawstring fixed to the bag body via an adjustment buckle at one end. Under the action of a first external force, the drawstring is in a taut state, and the flap covers the opening and locks with the bag body. Under the action of a second external force, the flap moves the drawstring to a loose state, and the flap moves away from the bag body and unlocks from the bag body.

[0008] Furthermore, the edge of the flap forms a pressing surface on the surface of the bag, and the adjustment buckle is located on the pressing surface.

[0009] Furthermore, there are at least two adjustment buckles, and the two adjustment buckles are symmetrically arranged along the width direction of the bag body.

[0010] Furthermore, the adjusting buckle is provided with a pressing part, which forms a downward pressure on the taut drawstring.

[0011] Furthermore, the adjusting buckle is provided with a through hole, and a gap is formed between the through hole and the adjusting buckle. The through hole and the gap form a reverse folding through path.

[0012] Furthermore, under the action of the first external force, the drawstring at the gap moves first to drive the drawstring at the perforation to move, and under the action of the second external force, the drawstring at the perforation moves first to drive the drawstring at the gap to move.

[0013] Furthermore, the perforation width is greater than the gap width.

[0014] Furthermore, there are two holes, and the two ends of the gathering rope pass through the folding-back path and then through the adjusting buckle.

[0015] Furthermore, the area of ​​the covering surface formed by the flip cover is at least 1.3 times the cross-sectional area of ​​the opening.

[0016] Furthermore, the drawstring is positioned near the opening of the bag and on the outside of the bag.

[0017] The beneficial effects of this utility model are as follows: In this invention, by utilizing the function of the adjusting buckle, the drawstring can present different states when subjected to different external forces. For example, by setting the first external force and the second external force in opposite directions, the drawstring is forced to move downward or upward to complete the locking or unlocking. The whole process is simple and easy to control.

[0018] In this invention, the adjustment buckle is set on the flap, which makes the position prominent so that the user can see the drawstring passing through it and apply force. On the other hand, the flap is set on top of the bag body, which itself can generate downward gravity to help lock it. Attached Figure Description

[0019] Figure 1 A schematic diagram of the structure of a flip-top backpack in a locked state provided by this utility model; Figure 2 A schematic diagram of the structure of a flip-top backpack in its unlocked state provided by this utility model; Figure 3 This utility model provides a structural schematic diagram of a flip-top backpack in a single-sided unlocked state. Figure 4 Assembly drawing of the adjusting buckle and the gathering rope provided by this utility model; Figure 5 A schematic diagram of the structure of the adjusting buckle provided by this utility model; In the picture: 100. Bag body; 200. Flap; 210. Press-down side; 300. Adjustment buckle; 310. Press-down part; 320. Perforation; 330. Gap; 400. Drawstring; 500. Shoulder strap. Detailed Implementation

[0020] The present invention will now be described in detail with reference to the embodiments shown in the accompanying drawings. However, it should be noted that these embodiments are not intended to limit the present invention. Equivalent transformations or substitutions in function, method, or structure made by those skilled in the art based on these embodiments are all within the protection scope of the present invention.

[0021] See attached document Figure 1-5 As shown, a flap backpack in this embodiment includes a bag body 100 with an opening and a flap 200 connected to the bag body to cover the opening. The flap 200 has a drawstring 400 fixed to the bag body 100 via an adjusting buckle 300 at its end. Under the action of a first external force, the drawstring 400 is in a taut state, at which time the flap 200 covers the opening and locks with the bag body 100, so that the flap backpack is in a closed and locked state. Under the action of a second external force, the flap 200 drives the drawstring 400 to move and is in a loose state. At this time, the flap 200 can be pulled away from the bag body 100 by pulling force, etc., and unlocked from the bag body 100, thereby realizing the unlocked state of the bag body.

[0022] In the prior art, the drawstring 400 is usually adjusted first and then locked, which takes at least two steps to complete the locking action. However, in this embodiment, by adjusting the buckle, the locking process is completed in one step, which greatly improves the locking efficiency of the flap backpack and makes it more convenient for users.

[0023] In this embodiment, to further assist the locking of the drawstring, a downward pressure surface 210 is formed on the edge of the flap 200, near the locking edge, on the surface of the bag body 100. The adjusting buckle 300 is located on this downward pressure surface. Since the drawstring 400 passes through the adjusting buckle 300, the downward pressure surface causes the adjusting buckle 300 and the drawstring 400 to exert a downward force. In use, the adjusting buckle 300 drives the drawstring 400 to move up and down, and during this downward movement, the drawstring 400 is locked.

[0024] To facilitate symmetrical control and ensure relatively uniform force distribution on both sides of the bag, two adjustment buckles can be symmetrically set on both sides of the bag body 100. These buckles are symmetrically arranged along the horizontal width of the bag body 100, and when the user carries the bag, they form a left-right side arrangement.

[0025] To achieve a single pull-down locking effect of the adjusting buckle, the adjusting buckle 300 is provided with a pressing part 310, which forms a downward pressure acting on the taut drawstring 400. In this embodiment, by setting the downward pressure, the drawstring 400 passing through the adjusting buckle 300 will always have downward pressure even without other external forces. At this time, pulling down the drawstring 400 forms the first external force, causing the drawstring 400 to be naturally locked while being pressed down by the downward pressure, thus completing the locking and fixing effect. Compared with the prior art, which first adjusts to the length of the locking force and then completes the locking through the locking mechanism, the steps are reduced, making it more convenient to use and improving efficiency.

[0026] The adjusting buckle 300 has a through hole 320 on its side for the drawstring 400 to pass through. There is a gap 330 between the through hole 320 and the adjusting buckle 300. Looking at the length of the bag body 100 from top to bottom, the through hole 320 is at the top and the gap 330 is at the bottom. The drawstring 400 at the bag body 100 first extends out through the through hole 320, and then extends into the lower part of the adjusting buckle 300 from the gap 330, forming a back-and-forth drawstring. After being located under the adjusting buckle 300, it is pressed down by the pressing part 310 and is in a relatively locked state. At this time, since the backpack is on the back, the drawstring will not move upward, thus forming a relatively locked state that is not completely locked by the locking mechanism. At this point, the entire adjusting buckle 300 forms a reversible threading path from the package body through the perforation 320 upwards, then through the perforation and gap 330, and then downwards to the package body 100, so as to facilitate the back-and-forth threading of the binding rope 400.

[0027] The movement of the drawstring 400 during locking or unlocking is as follows: Regarding the locking process, the first external force forms a downward pull on the drawstring 400, which causes the drawstring passing through the gap 330 downward to be pulled down, thereby reducing the distance between the bag body 100 and the flap 200. During this process, the drawstring near the gap 330 moves first, and then drives the drawstring at the perforation 320 to move, until the downward force stops or the drawstring 400 can no longer move, thus completing the locking. The unlocking process is caused by a second external force, which increases the distance between the flap 200 and the bag body 100, or increases the length of the drawstring between them. At this time, the drawstring 400 at the perforation 320 moves first, and then drives the drawstring 400 at the gap 330 to move, thus completing the entire control process.

[0028] In this embodiment, since one end of the drawstring 400 is fixed to the bag body 100 and the other end is movably set on the flap through the adjusting buckle 300, the weight of the flap, combined with the relative position of the drawstring, makes the flap relatively locked or fit the bag body. Of course, magnetic or adhesive connection methods can also be added between the flap and the bag body 100 to help improve the connection.

[0029] In this embodiment, to ensure that unlocking is difficult later, the width of the perforation 320 is greater than the width of the gap 330. Because the perforation 320 is wider, the drawstring 400 between the perforation 320 and the bag body 100 can be moved quickly. At this time, the force required to pull the drawstring 400 downward is relatively small, and it can be pulled down easily. However, when unlocking is required, because the gap 330 is narrower, a larger external force is needed to move the drawstring 400 between the gap 330 and the bag body 100 upward to complete the unlocking. Therefore, the second external force is greater than the first external force.

[0030] In use, the two ends of the drawstring 400 pass through the two through holes 320 of the adjusting buckle 300 and are then fixed to the bag body 100, or connected through the through hole located on the lower outer side of the bag body 100. When locked, the structure of the through hole is formed by pulling down. At this time, the two ends of the drawstring 400 extend into the through hole. The drawstring in the middle forms two threading structures, which pass through the two through holes and the gap on the adjusting buckle 300 respectively, and then fold back through the adjusting buckle 300.

[0031] To better cover the opening and prevent items inside the bag 100 from being exposed, the covering area formed by the flap 200 is at least 1.3 times the cross-sectional area of ​​the opening. At this point, the larger covering area of ​​the flap 200 can cover the open opening, and when locked, the opening will also become smaller. By setting an area at least 1.3 times larger than the opening, the items inside the bag 100 are better concealed.

[0032] In this embodiment, the drawstring 400 is positioned near the opening of the bag body 100 and on the outer side of the bag body 100. The purpose of positioning it near the opening is to ensure that the opening can be well covered by the closed flap. Positioning it on the outer side means that the entire drawstring 400 is closer to the outside. When the user uses it, the outer side is closer to the sides of the body, making it easier for the user to operate. If it were positioned closer to the center of the width, it would easily exceed the user's hand operating range, resulting in inconvenience.

[0033] In this embodiment, to facilitate user use of the backpack or similar configuration, a shoulder strap 500 is provided on the inner side of the bag body 100, and the shoulder strap 500 is offset from the drawstring 400. This offset not only avoids interference such as tangling but also achieves relatively independent control of each other, with each exerting different stress on opposite sides of the bag body.

[0034] In this invention, by utilizing the function of the adjusting buckle, the drawstring can present different states when subjected to different external forces. For example, by setting the first external force and the second external force in opposite directions, the drawstring is forced to move downward or upward to complete the locking or unlocking. The whole process is simple and easy to control.

[0035] In this invention, the adjustment buckle is set on the flap, which makes the position prominent so that the user can see the drawstring passing through it and apply force. On the other hand, the flap is set on top of the bag body, which itself can generate downward gravity to help lock it.

[0036] Referring to the accompanying drawings, the adjusting buckle 300 in this embodiment is specifically a housing. The housing has two through holes 320 and a gap 330 along its horizontal direction. The drawstring 400 passing through the two through holes 320 will naturally droop downwards through the same gap 330 onto the package. In this embodiment, the through holes 320 are round holes to reduce friction on the drawstring, and the gap can also be rounded to extend the lifespan of the drawstring. The detailed descriptions listed above are merely specific descriptions of feasible implementations of this utility model, and are not intended to limit the scope of protection of this utility model. All equivalent implementations or modifications made without departing from the spirit of this utility model should be included within the scope of protection of this utility model.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0038] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A flap backpack, comprising a bag body with an opening and a flap attached to the bag body to cover the opening, characterized in that, The flap end is equipped with a drawstring that is fixed to the bag body via an adjustment buckle. Under the action of a first external force, the drawstring is in a taut state, and the flap covers the opening and locks with the bag body. Under the action of a second external force, the flap moves the drawstring to a loose state, and the flap moves away from the bag body and unlocks from the bag body.

2. A flap backpack according to claim 1, characterized in that, The edge of the flap forms a pressing surface on the surface of the bag, and the adjustment buckle is located on the pressing surface.

3. A flap backpack according to claim 2, characterized in that, There are at least two adjustment buckles, and the two adjustment buckles are symmetrically arranged along the width direction of the bag body.

4. A flap backpack according to claim 1, characterized in that, The adjusting buckle is provided with a pressing part, which forms a downward pressure on the taut drawstring.

5. A flap backpack according to claim 1, characterized in that, The adjusting buckle has a through hole, and a gap is formed between the through hole and the adjusting buckle. The through hole and the gap form a reverse folding through path.

6. A flap backpack according to claim 5, characterized in that, Under the action of the first external force, the drawstring at the gap moves first to drive the drawstring at the hole to move. Under the action of the second external force, the drawstring at the hole moves first to drive the drawstring at the gap to move.

7. A flap backpack according to claim 5, characterized in that, The perforation width is greater than the gap width.

8. A flap backpack according to claim 5, characterized in that, There are two holes, and the two ends of the gathering rope pass through the folding-back path and then through the adjusting buckle.

9. A flap backpack according to claim 1, characterized in that, The area of ​​the cover formed by the flip cover is at least 1.3 times the cross-sectional area of ​​the opening.

10. A flap backpack according to claim 1, characterized in that, The drawstring is located near the opening of the bag and is positioned on the outside of the bag.

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