Packaging buffer structure and packaging box

Abstract

The present invention provides a packaging buffer structure and a packaging box. The packaging buffer structure includes a memory seat and a pre-tightening belt device. The memory seat has a supporting surface, and at least part of the edge of the memory seat can be bent forward towards the supporting surface. The pre-tightening belt device is arranged on the memory seat, and the pre-tightening belt of the pre-tightening belt device is used to enclose with the supporting surface to form a pre-tightening space for placing a product. The technical solution of this application can improve the applicability of the packaging buffer structure.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging, and particularly relates to a packaging buffer structure and a packaging box. Background Art

[0002] Currently, products of the same type on the market have different size types. For example, drones have different sizes according to different models, so different sizes of packaging boxes and packaging buffer structures adapted to the corresponding sizes are required for packaging. However, due to the fixed size of the existing packaging buffer structures, their applicability is poor and they cannot be applied to the packaging of products with different sizes. In addition, when packaging products, a pre-tightening belt is also used to tie the product to the packaging buffer structure. However, when taking out the product, the disassembled pre-tightening belt is mostly scattered and entangled, which takes time to sort out and is inconvenient to use. Summary of the Invention

[0003] The main object of the present invention is to provide a packaging buffer structure and a packaging box, aiming to improve the applicability of the packaging buffer structure.

[0004] To achieve the above object, a packaging buffer structure proposed by the present invention includes:

[0005] A memory seat, the memory seat has a support surface, and at least part of the edge of the memory seat can be bent forward towards the support surface; and

[0006] A pre-tightening belt device, the pre-tightening belt device is arranged on the memory seat, and the pre-tightening belt of the pre-tightening belt device is used to enclose a pre-tightening space for placing the product with the support surface.

[0007] In an embodiment of the packaging buffer structure of the present application, the memory seat includes:

[0008] A variable-direction skeleton, one side of the variable-direction skeleton forms the support surface; and

[0009] A variable-direction bracket, the variable-direction bracket is arranged on the support surface and surrounds the edge of the support surface to enclose a limiting groove with the variable-direction skeleton.

[0010] In an embodiment of the packaging buffer structure of the present application, the variable-direction skeleton includes a fixed section, a bent section and a first variable-direction structure, at least one side of the fixed section is provided with the bent section, and the first variable-direction structure is arranged between the fixed section and the bent section, so that the bent section can be bent towards the support surface relative to the fixed section.

[0011] In an embodiment of the packaging buffer structure of the present application, the first deflection structure includes an elastic plate and at least one reinforcing rib. The elastic plate is disposed between the fixed section and the bending section and has a part of the supporting surface. The thickness of the elastic plate is less than the thicknesses of the fixed section and the bending section. The reinforcing rib protrudes from a side of the elastic plate facing away from the supporting surface, and the extending direction of the reinforcing rib is perpendicular to the arranging direction of the fixed section and the bending section;

[0012] And / or, each side edge of the fixed section is provided with a bending section, and the first deflection structure is provided between the fixed section and each bending section;

[0013] And / or, the pre-tightening belt device is disposed on the fixed section;

[0014] And / or, the packaging buffer structure further includes a locking and releasing structure, and the locking and releasing structure is disposed on the memory seat to lock the bending section when the bending section is bent in place.

[0015] In an embodiment of the packaging buffer structure of the present application, the deflection bracket includes;

[0016] Two second deflection structures, the second deflection structures extend along the arranging direction of the fixed section and the bending section, and the two second deflection structures are disposed on both sides of the supporting surface; and

[0017] Two surrounding edges, the two surrounding edges are disposed between the two second deflection structures, two ends of the surrounding edge are respectively connected to the two second deflection structures, and one of the surrounding edges is disposed on the bending section.

[0018] In an embodiment of the packaging buffer structure of the present application, the second deflection structure is a wavy structure;

[0019] And / or, each side edge of the fixed section is provided with a bending section, each surrounding edge and each second deflection structure are respectively disposed on a bending section, and the surrounding edge includes two fixing columns and a third deflection structure disposed between the two fixing columns.

[0020] In an embodiment of the packaging buffer structure of the present application, the pre-tightening belt device further includes a winding shaft and a pre-tightening unit. The winding shaft is rotatably disposed on the memory seat, the pre-tightening belt is wound around the winding shaft, and the pre-tightening unit is in transmission connection with the winding shaft and can provide a reverse pre-tightening force when the pre-tightening belt is pulled out to make the pre-tightening belt have a retracting tendency so as to bind the product tightly;

[0021] And / or, the memory seat is provided with an installation groove, the pre-tightening belt device is disposed in the installation groove, and the pre-tightening belt can extend outwards from the notch of the installation groove;

[0022] And / or, the packaging buffer structure further includes an elastic sleeve that covers the outer surface of the memory seat, and the pre-tightening belt passes through the elastic sleeve and extends outward;

[0023] And / or, the packaging buffer structure further includes a packaging bag, the bottom of the packaging bag is connected to the memory seat, and the packaging bag can be reversely sleeved on the memory seat and the pre-tightening belt device.

[0024] In an embodiment of the packaging buffer structure of the present application, when the packaging buffer structure includes a packaging bag, a receiving groove is provided on the side of the memory seat. The packaging bag has a folded state and a packaging state. When the packaging bag is in the folded state, it is received in the receiving groove.

[0025] In an embodiment of the packaging buffer structure of the present application, the packaging buffer structure is provided with a rotating shaft, and the rotating shaft is rotatably arranged in the receiving groove;

[0026] The bottom of the packaging bag is fixedly connected to the rotating shaft, and when the packaging bag is in the folded state, it is wound around the rotating shaft.

[0027] In an embodiment of the packaging buffer structure of the present application, the packaging buffer structure further includes a retracting unit, and the retracting unit is in transmission connection with the rotating shaft to provide a retracting force to the rotating shaft in a direction opposite to the rotation direction of the rotating shaft when the packaging bag is pulled out;

[0028] And / or, the packaging buffer structure further includes a rotation stopping unit, and the rotation stopping unit is arranged on the memory seat to lock the rotating shaft when the packaging bag is in the packaging state.

[0029] The present application also provides a packaging box, which includes a box body and the packaging buffer structure as described in any one of the foregoing items. The packaging buffer structure is arranged in the box body, and the packaging buffer structure includes:

[0030] A memory seat, the memory seat has a supporting surface, and at least part of the edge of the memory seat can be bent forward toward the supporting surface; and

[0031] A pre-tightening belt device, the pre-tightening belt device is arranged on the memory seat, and the pre-tightening belt of the pre-tightening belt device is used to enclose a pre-tightening space for placing the product with the supporting surface.

[0032] The technical solution of the present invention enables the memory seat in the packaging buffer structure to be bent, so that when packaging products of different sizes, the memory seat can be twisted and bent to adapt to products of different sizes, improving the applicability of the buffer packaging structure.

[0033] Meanwhile, the pre-tightening belt is fixed on the memory seat through the pre-tightening belt device. When the product needs to be strapped, only the pre-tightening belt needs to be pulled out to strap the product on the memory seat, and the retraction force provided by the pre-tightening belt device can make the pre-tightening belt press tightly against the product, preventing the product from falling off the memory seat, so that the memory seat can provide better buffer protection for the product; when the product is removed, the pre-tightening belt device can automatically retract the pre-tightening belt or make the pre-tightening belt tighten on the support surface, avoiding the pre-tightening belt from scattering and winding, and improving the convenience of using the pre-tightening belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.

[0035] Figure 1 It is a structural diagram of the packaging buffer structure of an embodiment of the present invention when packaging a product;

[0036] Figure 2 It is Figure 1 a structural diagram of the packaging buffer structure removing the elastic sleeve;

[0037] Figure 3 It is Figure 2 a structural diagram of another perspective of the memory seat;

[0038] Figure 4 It is a structural diagram of an embodiment of the pre-tightening belt device in the packaging buffer structure of the present invention;

[0039] Figure 5 It is Figure 4 a cross-sectional view of the pre-tightening belt device removing the pre-tightening belt;

[0040] Figure 6 It is Figure 5 an exploded view of;

[0041] Figure 7 It is a structural diagram of the packaging buffer structure of the present invention in the state of the packaging bag being wrapped;

[0042] Figure 8 It is Figure 7 a cross-sectional view of;

[0043] Figure 9 It is a structural diagram of the cooperation of the retraction unit, the rotating shaft and the packaging bag in the packaging buffer structure of the present invention;

[0044] Figure 10 It is Figure 9 a cross-sectional view of removing the packaging bag;

[0045] Figure 11 is Figure 10 an exploded view of

[0046] Explanation of the reference numerals in the drawings:

[0047]

[0048] The realization of the object of the present invention, its functional features and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings. Specific embodiments

[0049] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0050] It should be noted that all the directional indications (such as up, down, left, right, front, back,...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0051] In the present invention, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0052] In addition, in the present invention, descriptions such as "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions appears to be contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0053] The present invention provides a packaging buffer structure 100, which can improve the applicability of the packaging buffer structure 100.

[0054] Please refer to Figure 1 , in some embodiments of the packaging buffer structure 100 of the present application, the packaging buffer structure 100 includes:

[0055] A memory seat 10, the memory seat 10 has a supporting surface, and at least part of the edge of the memory seat 10 can be bent forward towards the supporting surface; and

[0056] A pre-tightening belt device 20, the pre-tightening belt device 20 is arranged on the memory seat 10, and the pre-tightening belt 21 of the pre-tightening belt device 20 is used to enclose with the supporting surface to form a pre-tightening space for placing the product 200.

[0057] The packaging buffer structure 100 proposed in the present application is applied to the packaging structure of the product 200, and is mostly built into storage containers such as packaging boxes and packaging bags 40 to provide buffer protection for the product 200. Specifically, the packaging buffer structure 100 includes a memory seat 10 and a pre-tightening belt device 20 arranged on the memory seat 10. The memory seat 10 has a supporting surface for placing the product 200, and at the same time, the memory seat 10 can be bent. In this way, when the packaging buffer structure 100 is used for packaging different products 200, the memory seat 10 can be deformed by bending the memory seat 10 to wrap the product 200, and it can be applicable to the packaging of different products 200, and can also be placed in packaging boxes of different sizes, so that the applicability of the packaging buffer structure 100 is improved. Among them, the bendable setting of the memory seat 10 can be made of blow-molded materials, paper-plastic materials, EPE foam and other materials. By setting it as a wavy structure or grooved in the following embodiments, the memory seat 10 can be bent. In this embodiment, the specific setting method of the memory seat 10 is not limited here. When the product 200 is placed on the memory seat 10, the pre-tightening belt 21 in the pre-tightening belt device 20 is pulled out and connected to the opposite sides of the memory seat 10, so that the product 200 can be tied to the memory seat 10 to prevent the product 200 from falling off the memory seat 10. Among them, the pre-tightening belt device 20 can provide a pre-tightening force for the pre-tightening belt 21 to retract, so as to firmly press the product 200 on the supporting surface. The generation of the pre-tightening force can be such that the pre-tightening belt 21 is an elastic belt and the pre-tightening belt 21 is in an elastically elongated state when tying the product 200, or, the pre-tightening belt device 20 can provide a retracting force for the pre-tightening belt 21, and can also make the pre-tightening belt 21 better fit and press the product 200.

[0058] When the product 200 is taken out, the pre-tightening belt device 20 can also automatically retract the pre-tightening belt 21 or make the pre-tightening belt 21 tense on the supporting surface, avoiding the pre-tightening belt 21 from scattering and winding, and improving the convenience of using the pre-tightening belt 21.

[0059] Therefore, it can be understood that the technical solution of the present invention enables the memory seat 10 in the packaging buffer structure 100 to be bent, so that when packaging products 200 of different sizes, the memory seat 10 can be twisted and bent to adapt to products 200 of different sizes, improving the applicability of the buffer packaging structure.

[0060] Meanwhile, the pre-tightening belt 21 is fixed on the memory seat 10 through the pre-tightening belt device 20. When it is necessary to tie the product 200, only the pre-tightening belt 21 needs to be pulled out to tie the product 200 on the memory seat 100, and the retraction force provided by the pre-tightening belt device 20 can make the pre-tightening belt 21 press the product 200 to prevent the product 200 from falling off the memory seat 10, so that the memory seat 10 can provide better buffer protection for the product 200; when the product 200 is removed, the pre-tightening belt device 20 can automatically retract the pre-tightening belt 21 or make the pre-tightening belt 21 taut on the support surface, preventing the pre-tightening belt 21 from scattering and winding, improving the convenience of using the pre-tightening belt 21.

[0061] Please refer to Figure 2 and Figure 3 , in some embodiments of the packaging buffer structure 100 of the present application, it is defined that the support surface has a length direction and a width direction, and at least one end of the two ends of the memory seat 10 arranged along the length direction of the support surface can be bent towards the positive direction of the support surface, and / or, at least one end of the two ends of the memory seat 10 arranged along the width direction of the support surface can be bent towards the positive direction of the support surface.

[0062] In this embodiment, it is defined that the support surface has a length direction and a width direction. At this time, the memory seat 10 can bend the end portions in the length direction and / or the width direction towards one side of the support surface. Among them, it can be that both end portions in the length direction can be bent towards one side of the support surface, or it can be that one end can be bent. Similarly, it can be that both end portions in the width direction can be bent towards one side of the support surface, or it can be that one end can be bent. Preferably, when the memory seat 10 can be bent in both the first direction and the second direction, the bending deformation ability of the memory seat 10 is improved, so that the memory seat 10 can be applied to the packaging of products 200 with more shapes and sizes, and for products 200 with smaller sizes, the four sides of the memory seat 10 can be bent upwards to wrap the product 200, improving the buffer protection effect on the product 200.

[0063] Please refer to Figure 2 , in some embodiments of the packaging buffer structure 100 of the present application, the memory seat 10 includes:

[0064] A direction-changing skeleton 11, on one side of the direction-changing skeleton 11, the support surface is formed; and

[0065] The direction-changing bracket 12 is provided on the support surface and is arranged around the edge of the support surface to enclose the limiting groove 121 with the direction-changing skeleton 11.

[0066] In this embodiment, the memory seat 10 includes a direction-changing skeleton 11 and a direction-changing bracket 12. The direction-changing skeleton 11 has the aforementioned support surface. The direction-changing bracket 12 is provided on the support surface and is arranged around the circumference of the support surface to jointly define the limiting groove 121 with the direction-changing skeleton 11, so as to limit the product 200, further prevent the product 200 from falling off the memory seat 10, improve the stability of the overall structure, and ensure that the packaging buffer structure 100 can provide a buffering and protecting effect for the product 200.

[0067] Please refer to Figure 3 , in some embodiments of the packaging buffer structure 100 of the present application, the direction-changing skeleton 11 includes a fixed section 111, a bent section 112, and a first direction-changing structure 113. The bent section 112 is provided on at least one side of the fixed section 111, and the first direction-changing structure 113 is provided between the fixed section 111 and the bent section 112, so that the bent section 112 can be bent relative to the fixed section 111 towards the support surface.

[0068] In this embodiment, the memory seat 10 includes a fixed section 111, a bent section 112, and a first direction-changing structure 113 provided between the fixed section 111 and the bent section 112. The setting of the first direction-changing structure 113 enables the bent section 112 to be bent relative to the fixed section 111. The support surface corresponding to the fixed section 111 is used to place the product 200 to avoid pressing the product 200 when bending the memory seat 10. In this embodiment, the first direction-changing structure 113 can be a wavy structure or an elastic plate 1131, or a combined structure of the elastic plate 1131 and the reinforcing rib 1132 in the following embodiment, which is not limited herein.

[0069] It should be noted that in this embodiment, the bent section 112 is provided on at least one side of the fixed section 111. Defining that the direction-changing skeleton 11 has a length direction and a width direction, at this time, the bent section 112 can be provided on one side of the fixed section 111 in the length direction or at both ends of the fixed section 111 in the length direction, or the bent section 112 can be provided on one side of the fixed section 111 in the width direction or at both ends of the fixed section 111 in the width direction, or the bent section 112 can be respectively provided on the sides in the length direction and the width direction, which is not limited herein.

[0070] Please refer to Figure 2, in some embodiments of the packaging buffer structure 100 of the present application, the first deflection structure 113 includes an elastic plate 1131. The elastic plate 1131 is disposed between the fixed section 111 and the bent section 112 and has a part of the support surface. The thickness of the elastic plate 1131 is less than the thicknesses of the fixed section 111 and the bent section 112.

[0071] In this embodiment, the first deflection structure 113 is an elastic plate 1131. The elastic plate 1131 is arranged between the fixed section 111 and the bent section 112. The thickness of the elastic plate 1131 is less than the thicknesses of the fixed section 111 and the bent section 112. The elastic plate 1131 can be bent and deformed so that the bent section 112 can be bent toward the support surface side. In this embodiment, the elastic plate 1131 can be made of blow-molded material, paper-plastic material, EPE foam, etc., and itself also has a certain elastic deformation ability.

[0072] Please refer to Figure 2 , in some embodiments of the packaging buffer structure 100 of the present application, the first deflection structure 113 further includes at least one reinforcing rib 1132. The reinforcing rib 1132 protrudes from a side of the elastic plate 1131 facing away from the support surface, and the extending direction of the reinforcing rib 1132 is perpendicular to the arrangement direction of the fixed section 111 and the bent section 112.

[0073] In this embodiment, the first deflection structure 113 further includes at least one reinforcing rib 1132. The reinforcing rib 1132 protrudes from the surface of the elastic plate 1131 facing away from the support surface. Such a setting can make the reinforcing rib 1132 support on the placement surface of the deflection skeleton 11, improve the overall support strength, and does not affect the deformation of the elastic plate 1131. When multiple reinforcing ribs 1132 are provided, the multiple reinforcing ribs 1132 are arranged at intervals along the arrangement direction of the fixed section 111 and the bent section 112 to further enhance the support strength and the overall structural stability.

[0074] Please refer to Figure 2 , in some embodiments of the packaging buffer structure 100 of the present application, two opposite surfaces of the reinforcing rib 1132 gradually approach each other in a direction away from the elastic plate 1131.

[0075] In this embodiment, the two surfaces of the reinforcing rib 1132 gradually approach each other in a direction away from the elastic plate 1131. Such a setting makes the adjacent two reinforcing ribs 1132 arranged at intervals when multiple reinforcing ribs 1132 are provided, so as to reduce the influence on the bending deformation of the elastic plate 1131 while improving the support strength.

[0076] Please refer to Figure 3, in some embodiments of the packaging buffer structure 100 of the present application, a bending section 112 is provided on each side of the fixed section 111, and a first direction-changing structure 113 is provided between the fixed section 111 and each bending section 112.

[0077] In this embodiment, the fixed section 111 is arranged in the middle of the memory base 10, and the bending sections 112 are arranged on the four side parts of the memory base 10 respectively. In this way, when there are intervals between the product 200 and each side of the memory base 10, at this time, the four sides of the memory base 10 are bent upward to wrap the product 200, which can better play a role in buffering and protecting the product 200.

[0078] Please refer to Figure 2 , in some embodiments of the packaging buffer structure 100 of the present application, the pre-tightening belt device 20 is arranged on the fixed section 111.

[0079] In this embodiment, the pre-tightening belt device 20 is arranged on the fixed section 111. At this time, the pre-tightening belt 21 can cross the fixed section 111 and be fixed on two opposite side edges of the support surface. In this way, when the memory base 10 is bent, the pre-tightening belt device 20 on the fixed section 111 will not be bent synchronously, resulting in deformation and damage of the pre-tightening belt device 20.

[0080] Please refer to Figure 2 and Figure 3 , in some embodiments of the packaging buffer structure 100 of the present application, the packaging buffer structure 100 further includes a locking and releasing structure 14, and the locking and releasing structure 14 is arranged on the memory base 10 to lock the bending section 112 when the bending section 112 is bent in place.

[0081] In this embodiment, the packaging buffer structure 100 further includes a locking and releasing structure 14, and the locking and releasing structure 14 is arranged on the memory base 10. In this way, when the bending section 112 is bent in place, the bending section 112 can be locked by the locking and releasing structure 14 so that the memory base 10 maintains the structural state after bending deformation for subsequent packaging, and to avoid the automatic reset of the bending section 112 after the bending section 112 is released. Among them, the locking and releasing structure 14 can be, but is not limited to, a binding belt, a magic tape or a lock buckle in the following embodiments, or a combination of multiple structures, which is not limited here.

[0082] In some embodiments of the packaging buffer structure 100 of the present application, the locking and releasing structure 14 includes a lock buckle, the lock buckle extends along the arrangement direction of the bending section 112 and the fixed section 111, and is telescopically inserted into the bending section 112;

[0083] Among them, when the memory base 10 is bent in place, the lock buckle extends inward and is inserted into the fixed section 111 to be fixedly connected with the fixed section 111 to lock the memory base 10.

[0084] In this embodiment, the locking and releasing structure 14 includes a locking buckle, which is telescopically inserted into the bent section 112. At this time, after the bent section 112 is bent in place, the locking buckle is continuously inserted toward the fixed section 111 side, so that the locking buckle is fixedly connected to the fixed section 111. In this way, the bent section 112 can maintain the bent angle, and the structure of the memory seat 10 after bending and deforming is stable.

[0085] Please refer to Figure 2 , in some embodiments of the packaging buffer structure 100 of the present application, the deflection bracket 12 includes;

[0086] Two second deflection structures 121, the second deflection structures 121 extend along the arrangement direction of the fixed section 111 and the bent section 112, and the two second deflection structures 121 are arranged on both sides of the support surface; and

[0087] Two surrounding edges 122, the two surrounding edges 122 are arranged between the two second deflection structures 121, both ends of the surrounding edge 122 are respectively connected to the two second deflection structures 121, and one of the surrounding edges 122 is arranged on the bent section 112.

[0088] It can be understood that when the memory seat 10 is bent, the deflection skeleton 11 and the deflection bracket 12 need to be bent synchronously. In this embodiment, the deflection bracket 12 includes two second deflection structures 121 arranged oppositely, and the two second deflection structures 121 are respectively arranged on the opposite sides of the support surface and both extend along the arrangement direction of the bent section 112 and the fixed section 111. One surrounding edge 122 is arranged on each of the other two opposite sides of the support surface to enclose a limiting groove 121 with the two second deflection structures 121 and the support surface, and one of the surrounding edges 122 is arranged on the bent section 112. Thus, when the bent section 112 is bent toward the support surface side, the two second deflection structures 121 are bent synchronously so that the surrounding edge 122 moves toward the support surface side together with the bent section 112. Among them, the second deflection structure 121 can be a wavy structure or an elastic plate 1131, which is not limited herein.

[0089] Please refer to Figure 2 , in some embodiments of the packaging buffer structure 100 of the present application, the second deflection structure 121 is a wavy structure.

[0090] In this embodiment, the second deflection structure 121 is a wavy structure, which can be a zigzag wave, a circular arc wave, a rectangular wave or other regular or irregular wavy structures, or a combined structure of waves with different shapes. It is not limited herein, as long as the side of the deflection bracket 12 extending along the bendable direction of the deflection skeleton 11 has an up-and-down bent structure, which is not specifically limited herein.

[0091] Please refer to Figure 3 In some embodiments of the packaging buffer structure 100 of the present application, a bending section 112 is provided on each side of the fixed section 111, and each surrounding edge 122 and each second deflection structure 121 are respectively provided on a bending section 112. The surrounding edge 122 includes two fixing columns 1221 and a third deflection structure 1222 provided between the two fixing columns 1221.

[0092] In this embodiment, a bending section 112 is provided on each side of the fixed section 111, so that the fixed section 111 can be bent towards the support surface at each end in the length direction and the width direction. At this time, the surrounding edge 122 in the deflection bracket 12 includes the fixing columns 1221 as the fixing basis and the third deflection structure 1222 provided between the two fixing columns 1221. The third deflection structure 1222 can be a wavy structure like the second deflection structure 121, or a structure such as the elastic plate 1131 of the first deflection structure 113, etc., so that the deflection bracket 12 can be bent towards the support surface in all directions, improving the deformation ability of the deflection bracket 12 and the memory seat 10, and improving the applicability of the memory seat 10.

[0093] Please refer to Figure 4 In some embodiments of the packaging buffer structure 100 of the present application, the pre-tightening belt device 20 further includes:

[0094] A winding shaft 22, which is rotatably provided on the memory seat 10, and the pre-tightening belt 21 is wound around the winding shaft 22; and

[0095] A pre-tightening unit 23, which is in transmission connection with the winding shaft 22 and can provide a reverse pre-tightening force when the pre-tightening belt 21 is pulled out to make the pre-tightening belt 21 have a retraction tendency to tie the product 200.

[0096] In this embodiment, the pre-tightening belt device 20 further includes a winding shaft 22 and a pre-tightening unit 23. Among them, the winding shaft 22 is rotatably arranged on the memory seat 10, and one end of the pre-tightening belt 21 is connected to the winding shaft 22. When the pre-tightening belt 21 does not need to bind the product 200, the pre-tightening belt 21 is wound around the winding shaft 22. When it is necessary to bind the product 200, the free end of the pre-tightening belt 21 can be pulled, and the winding shaft 22 can be rotated to pull out the pre-tightening belt 21. Further, the pre-tightening unit 23 is arranged to be in transmission connection with the winding shaft 22 to provide a reverse pre-tightening force when the pre-tightening belt 21 is pulled out, so that the pre-tightening belt 21 has a retraction tendency. It can be understood that the free end of the pre-tightening belt 21 straddles the memory seat 10 and is bound to the other side of the memory seat 10. At this time, the pre-tightening unit 23 pulls the pre-tightening belt 21 to make it have a retraction tendency, so that the pre-tightening belt 21 can be tightened to press the product 200 on the memory seat 10, so that the product 200 is firmly bound to the memory seat 10. The setting of the pre-tightening unit 23 in this embodiment can make the pre-tightening belt 21 bind the product 200 tightly and also make the pre-tightening belt 21 automatically recoverable, improving safety guarantee and use convenience.

[0097] Among them, the pre-tightening unit 23 can be a volute spring, so that the outer end of the volute spring is fixed to the memory seat 10, and the inner end is connected to the winding shaft 22 and thus rotates with the winding shaft 22; the pre-tightening unit 23 can also be the air column pre-tightening unit 23 in the following embodiment, and various pre-tightening units 23 can also be combined with each other, which is not limited here.

[0098] Please refer to Figure 5 , in some embodiments of the packaging buffer structure 100 of the present application, the pre-tightening unit 23 includes:

[0099] A first air column 231, the first air column 231 is elastic and has a hollow structure. One end of the first air column 231 is provided with a ventilation hole 2311, and the other end of the first air column 231 is connected to the winding shaft 22; and

[0100] A second air column 232, the second air column 232 is elastic and has a hollow structure. One end of the second air column 232 facing the first air column 231 is provided with a through hole 2321, and the through hole 2321 is communicated with the ventilation hole 2311;

[0101] Among them, the second air column 232 is fixed. When the pre-tightening belt 21 is pulled out to rotate the winding shaft 22, one end of the first air column 231 is driven to rotate to twist the first air column 231, so as to discharge the gas in the first air column 231 into the second air column 232.

[0102] In this embodiment, the preload unit 23 for providing reverse preload force for the winding shaft 22 includes a first air column 231 and a second air column 232, wherein the first air column 231 and the second air column 232 are both elastic hollow structures and can be made of materials such as rubber or silicone, and an air vent 2311 connected to the second air column 232 is provided at the end of the first air column 231 facing the second air column 232, and the end of the first air column 231 facing away from the second air column 232 is fixedly connected to the winding shaft 22. With such arrangement, when the pre-tensioning band 21 is pulled outward, the winding shaft 22 drives the first air column 231 to rotate, causing the first air column 231 to twist, and the air in the first air column 231 is discharged to the second air column 232 through the vent hole 2311, causing the second air column 232 to expand. At this time, the second air column 232 will generate an elastic restoring force, thereby having a tendency to discharge the air back to the first air column 231, so that the first air column 231 has a tendency to rotate and restore, and drive the winding shaft 22 to reset and the pre-tensioning band 21 to retract; at this time, since the free end of the pre-tensioning band 21 is fixed to the other side of the memory seat 10, the pre-tensioning force will cause the pre-tensioning band 21 to press the product 200, thereby improving the stability of the binding product 200. When the free end of the pre-tightening band 21 is loosened, the second air column 232 shrinks back to its original shape under the action of the elastic restoring force, so that the gas in the second air column 232 can be discharged back to the first air column 231, so that the first air column 231 expands and reverses, thereby driving the winding shaft 22 to rotate and recycle the pre-tightening band 21. If the pre-tightening band 21 is pulled quickly, for example, when the product 200 is inverted and there is a risk of falling, the air vent 2311 is not enough to quickly discharge the gas in the first air column 231 into the second air column 232, resulting in the air flow output in the first air column 231 being blocked, which will hinder the rotation of the winding shaft 22, thereby preventing the pre-tightening band 21 from loosening and causing the product 200 to fall off, thereby reducing the risk of the product 200 falling and being damaged, so that the packaging buffer structure 100 can always be tied to the product 200 as a whole, so as to better protect the product 200.

[0103] That is, the setting of the pre-tightening unit 23 in this embodiment can make the pre-tightening belt 21 tighten the product 200 and also make the pre-tightening belt 21 automatically retractable, thereby improving safety and convenience of use; the use of the gas column pre-tightening structure can also effectively prevent the pre-tightening belt 21 from loosening and reduce the risk of the product 200 falling off. When a mechanical structure such as a volute spring is used as the pre-tightening unit 23, the volute spring may be permanently deformed and lose its original elastic force after long-term use or when too much force is applied, or the mechanical structure may be fatigued and damaged. The use of an elastic gas column can delay the fatigue loss of the pre-tightening unit 23, increase its service life, and ensure stable performance.

[0104] Please refer to Figure 5 and Figure 6, in some embodiments of the packaging buffer structure 100 of the present application, the pre-tightening belt device 20 further includes a fixed cylinder 233, the fixed cylinder 233 is disposed on the memory seat 10 and is located at the end of the winding shaft 22. The winding shaft 22 is a hollow structure and is rotatably sleeved on the fixed cylinder 233;

[0105] The first air column 231 is disposed inside the winding shaft 22, and the second air column 232 is disposed inside the fixed cylinder 233 and fixedly connected to the fixed cylinder 233.

[0106] In this embodiment, the pre-tightening belt device 20 includes a fixed cylinder 233 for rotatably connecting the winding shaft 22. The fixed cylinder 233 is fixedly connected to the memory seat 10, and the end of the winding shaft 22 is sleeved on the fixed cylinder 233 so that the winding shaft 22 can rotate around the fixed cylinder 233, and the structure is simple. At this time, the first air column 231 is disposed inside the hollow winding shaft 22, and the second air column 232 is disposed inside the fixed cylinder 233 and fixedly connected to the fixed cylinder 233. On the one hand, it can protect the first air column 231 and the second air column 232. On the other hand, integrating the first air column 231 and the second air column 232 into the inside of the winding shaft 22 and the fixed cylinder 233 can reduce the size of the pre-tightening belt device 20 in the length direction of the winding shaft 22, thereby reducing the overall size of the pre-tightening belt device 20 and facilitating installation and storage.

[0107] Please refer to Figure 5 , in some embodiments of the packaging buffer structure 100 of the present application, the internal cavity of the first air column 231 is larger than the internal cavity of the second air column 232.

[0108] In this embodiment, the internal cavity of the first air column 231 is made larger than that of the second air column 232. This setting can ensure that when the pre-tightening belt 21 is pulled out, the first air column 231 can discharge sufficient gas into the second air column 232 to cause the second air column 232 to expand and deform, so that the second air column 232 can generate a large elastic restoring force, so that the pre-tightening belt 21 has a large pre-tightening force to tightly press the bundled product 200 and improve the stability of the bundled product 200.

[0109] Please refer to Figure 6 , in some embodiments of the packaging buffer structure 100 of the present application, the outer surface of the first air column 231 has a first spiral structure 2313, and the spiral direction of the first spiral structure 2313 is the same as the twisting direction of the first air column 231 when the pre-tightening belt 21 is pulled out.

[0110] In this embodiment, the outer surface of the first air column 231 has a first spiral structure 2313, and the spiral direction of the first spiral structure 2313 is the same as the twisting direction of the first air column 231 when the pre-tightening belt 21 is pulled out. With such a setting, when the pre-tightening belt 21 is pulled out, the first spiral structure 2313 itself will not hinder the twisting of the first air column 231. When the pre-tightening belt 21 is released and recovered, during the process that the gas in the second air column 232 is discharged back into the first air column 231 to inflate and restore the first air column 231, since the first spiral structure 2313 is also in a deformed state, a corresponding restoring force will be generated during the restoration process to promote the structural restoration of the first air column 231, accelerate the recovery of the pre-tightening belt 21, and ensure that the pre-tightening belt 21 is recovered in place.

[0111] Please refer to Figure 6 , in some embodiments of the packaging buffer structure 100 of the present application, the outer surface of the second air column 232 has a second spiral structure 2322.

[0112] In this embodiment, a second spiral structure 2322 is provided on the outer surface of the second air column 232. It can be understood that during the process of pulling out the pre-tightening belt 21, the winding shaft 22 will drive the first air column 231 to twist to discharge the gas in the first air column 231 into the second air column 232 to make the second air column 232 expand and thicken. At this time, the second spiral structure 2322 on the outer surface of the second air column 232 will gradually become shallower or disappear due to the expansion of the second air column 232; when the pre-tightening belt 21 is released and recovered, the second air column 232 will contract and restore to discharge the gas back into the first air column 231. During this process, since the second spiral structure 2322 is in a deformed state, a corresponding restoring force will be generated during the restoration process to promote the structural restoration of the second air column 232, so that the gas can be quickly discharged back into the first air column 231, accelerate the restoration speed of the first air column 231, and make the pre-tightening belt 21 quickly recovered.

[0113] Please refer to Figure 5 , in some embodiments of the packaging buffer structure 100 of the present application, the pre-tightening unit 23 further includes a rotating blade 234. The rotating blade 234 is disposed inside the winding shaft 22 and connected to the winding shaft 22, and the twisting end of the first air column 231 is connected to the rotating blade 234.

[0114] In this embodiment, the pre-tightening unit 23 further includes a rotating blade 234. The rotating blade 234 is disposed inside the winding shaft 22 and connected to the inner wall of the winding shaft 22. At this time, the torsion end of the first air column 231 is fixed on the rotating blade 234, so that the first air column 231 can be driven to twist by the rotating blade 234 when the winding shaft 22 rotates; and the circumferential edges of the rotating blade 234 are all connected to the inner wall of the winding shaft 22, so that the rotating blade 234 is uniformly stressed. To ensure that the rotating blade 234 and the winding shaft 22 rotate synchronously, avoiding the situation of force imbalance resulting in the misaligned rotation of the rotating blade 234 and the winding shaft 22 and the loss of force, thereby avoiding the problem that the pulling distance of the pre-tightening belt 21 does not match the twisting angle of the first air column 231, and the problems of loosening and incomplete recovery when the pre-tightening belt 21 is tied, and improving the stability of the overall structure operation of the pre-tightening belt device 20.

[0115] Please refer to Figure 5 , in some embodiments of the packaging buffer structure 100 of the present application, the pre-tightening unit 23 further includes a fixed blade 235. The fixed blade 235 is horizontally disposed inside the fixed cylinder 233 and connected to the fixed cylinder 233, and is located between the first air column 231 and the second air column 232. The fixed blade 235 is provided with a through hole 2351. One end of the first air column 231 and the second air column 232 that are connected is fixed to the fixed blade 235, and the air passing hole 2321 and the ventilation hole 2311 are communicated through the through hole 2351.

[0116] In this embodiment, the pre-tightening unit 23 further includes a fixed blade 235. The fixed blade 235 is horizontally disposed between the first air column 231 and the second air column 232 and is fixedly connected inside the fixed cylinder 233. At this time, the connected ends of the first air column 231 and the second air column 232 are both fixed to the fixed blade 235, and the ventilation hole 2311 on the first air column 231 is communicated with the through hole 2351 on the fixed blade 235, and the air passing hole 2321 on the second air column 232 is communicated with the through hole 2351, so that gas can flow between the first air column 231 and the second air column 232 through the through hole 2351. In some embodiments, a gas guiding joint 236 is inserted through the through hole 2351. The two ends of the gas guiding joint 236 protrude from the two surfaces of the fixed blade 235 respectively and are inserted into the ventilation hole 2311 of the first air column 231 and the air guiding hole of the second air column 232 and the air guiding hole and the ventilation hole 2311 are communicated, thereby improving the connection stability between the first air column 231 and the fixed blade 235 and between the second air column 232 and the fixed blade 235.

[0117] In addition, in some embodiments, the circumferential sides of the fixed vanes 235 are all connected to the fixed cylinder 233, which improves the connection strength between the fixed vanes 235 and the fixed cylinder 233, thereby preventing the fixed vanes 235 from rotating together with the first air column 231 when the first air column 231 twists, and further preventing the second air column 232 from rotating together, which may result in too small a restoring force of the second air column 232, making the pre-tightening belt 21 unable to tightly press the product 200 or be recovered incompletely. This improves the structural and performance stability.

[0118] Please refer to Figure 5 , in some embodiments of the packaging buffer structure 100 of the present application, there are two fixed cylinders 233, two first air columns 231, and two second air columns 232. Both ends of the winding shaft 22 are respectively sleeved on the two fixed cylinders 233. Each second air column 232 is fixed in one of the fixed cylinders 233. The two first air columns 231 are arranged side by side in the winding shaft 22 and are respectively communicated with one second air column 232. The adjacent ends of the two first air columns 231 are fixedly connected to the winding shaft 22.

[0119] In this embodiment, there are two fixed cylinders 233, which are respectively arranged at both ends of the winding shaft 22 to improve the rotational stability of the winding shaft 22. Further, there are two first air columns 231 and two second air columns 232. The two first air columns 231 are arranged side by side in the winding shaft 22. The two second air columns 232 are respectively arranged in the fixed cylinders 233 at both ends. The adjacent ends of the two first air columns 231 are fixedly connected to the winding shaft 22. They can be fixed to the rotating vanes 234 as in the above embodiment at the same time, or two rotating vanes 234 can be respectively provided, or the first air columns 231 can be fixed through other frame structures. Each first air column 231 is communicated with its adjacent second air column 232. With such an arrangement, when the pre-tightening belt 21 is pulled out, the winding shaft 22 will simultaneously drive the two first air columns 231 to twist, so as to discharge the gas in the two first air columns 231 to the second air columns 232 at both ends, causing the two second air columns 232 to generate elastic restoring forces simultaneously, and causing the two first air columns 231 to generate reverse pre-tightening forces. It can be understood that increasing the number of the first air columns 231 and the second air columns 232 can increase the pre-tightening force and the recovery force applied to the pre-tightening belt 21, making the pre-tightening belt 21 more tightly press the product 200 and accelerating the recovery speed during recovery. In addition, arranging the two second air columns 232 and the two first air columns 231 symmetrically along the length direction of the winding shaft 22 can apply approximately equal forces at both ends of the winding shaft 22, improving the stability of the movement process of the winding shaft 22.

[0120] Please refer to Figure 5 , in some embodiments of the packaging buffer structure 100 of the present application, the two first air columns 231 are communicated with each other.

[0121] In this embodiment, the two first air columns 231 are made to communicate with each other. Such a setting can balance the air pressures in the two first air columns 231 and the two second air columns 232, so as to ensure that the same acting force is applied to both ends of the winding shaft 22, avoiding uneven stress at both ends of the winding shaft 22 and causing a torsional phenomenon inside the winding shaft 22, resulting in fatigue damage of the winding shaft 22 due to torsion after long-term use. Making the two first air columns 231 communicate with each other can apply the same acting force to both ends of the winding shaft 22, making the overall rotation of the winding shaft 22 consistent, reducing the risk of damage, and ensuring stable performance and service life.

[0122] In some embodiments, a rotating blade 234 is provided inside the winding shaft 22. At this time, through holes 2312 can be formed in the rotating blade 234, so that the two first air columns 231 communicate with each other through the through holes 2312; further, a connecting joint can be inserted through the through holes 2312, and both ends of the connecting joint protrude from the two surfaces of the rotating blade 234 respectively and are inserted into the two first air columns 231 respectively to conduct the two first air columns 231. Such a setting can improve the connection stability of the first air column 231 and the overall structural stability of the pre-tightening belt device 20.

[0123] Please refer to Figure 2 , the memory seat 10 is provided with an installation groove 13, the pre-tightening belt device 20 is arranged in the installation groove 13, and the pre-tightening belt 21 can extend outwards from the notch of the installation groove 13.

[0124] In this embodiment, the memory seat 10 is provided with an installation groove 13, and the pre-tightening belt device 20 is arranged in the installation groove 13, which can play a role in protecting the pre-tightening belt device 20 and improving the use safety. And in some embodiments, the notch of the accommodation groove 15 is relatively small, which can play a role in guiding the pulling direction of the pre-tightening belt 21.

[0125] Please refer to Figure 1 , in some embodiments of the packaging buffer structure 100 of the present application, the packaging buffer structure 100 further includes an elastic sleeve 16, the elastic sleeve 16 covers the outer surface of the memory seat 10, and the pre-tightening belt 21 passes through the elastic sleeve 16 and extends outwards.

[0126] In this embodiment, the packaging buffer structure 100 further includes an elastic sleeve 16. The elastic sleeve 16 is sleeved on the surface of the memory seat 10, which can protect the memory seat 10 and prevent the product 200 from directly contacting the memory seat 10 and causing wear. The elastic sleeve 16 can be made of materials such as silica gel or rubber, and has the ability of elastic deformation itself. It can generate adaptive deformation along with the bending of the memory seat 10 without affecting the bending deformation of the memory seat 10. In addition, the pre-tightening belt device 20 is arranged in the memory seat 10. At this time, an outlet can be opened on the elastic sleeve 16 so that the pre-tightening belt 21 can extend outwards from the outlet.

[0127] Please refer to Figure 7 and Figure 8 , in some embodiments of the packaging buffer structure 100 of the present application, the packaging buffer structure 100 further includes a packaging bag 40. The bottom of the packaging bag 40 is connected to the memory seat 10, and the packaging bag 40 can be reversely sleeved on the memory seat 10 and the pre-tightening belt device 20.

[0128] In this embodiment, the packaging buffer structure 100 further includes a packaging bag 40. The bottom of the packaging bag 40 is connected to the memory seat 10. After the packaging bag 40 is unfolded, the opening faces away from the memory seat 10. At this time, the packaging bag 40 can be reversely sleeved on the memory seat 10 and the pre-tightening belt device 20 to accommodate the memory seat 10, the pre-tightening belt device 20 and even the product 200 in the packaging bag 40, so that the packaging bag 40 can be used as a portable bag, facilitating the user to carry and store the packaging buffer structure 100.

[0129] Please refer to Figure 3 , in some embodiments of the packaging buffer structure 100 of the present application, a receiving groove 15 is formed in the side of the memory seat 10. The packaging bag 40 has a folded state and a packaging state. When the packaging bag 40 is in the folded state, it is received in the receiving groove 15.

[0130] In this embodiment, a receiving groove 15 is formed in the side of the memory seat 10, and the packaging bag 40 has a folded state and a packaging state. When the packaging bag 40 is in the packaging state, the packaging bag 40 is fully unfolded and can be directly reversely sleeved on the memory seat 10 and the pre-tightening belt device 20; when the packaging bag 40 is in the folded state, it can be received in the receiving groove 15 of the memory seat 10 to prevent the packaging bag 40 from being scattered outside and avoid interference with each other when packaging the product 200, so that the overall structure is cleaner and more concise when the packaging bag 40 is not needed.

[0131] Please refer to Figure 2 and Figure 3 , in some embodiments of the packaging buffer structure 100 of the present application, the packaging bag 40 and the pre-tightening belt device 20 are respectively arranged on adjacent sides of the memory seat 10.

[0132] In this embodiment, the packaging bag 40 and the pre-tightening belt device 20 are respectively arranged on adjacent sides of the memory seat 10, which can make full use of the space of the memory seat 10 to arrange each component, and can avoid interference from another component when using the packaging bag 40 or the pre-tightening belt device 20.

[0133] Please refer to Figure 9 , in some embodiments of the packaging buffer structure 100 of the present application, the packaging buffer structure 100 is provided with a rotating shaft 50, and the rotating shaft 50 is rotatably arranged in the accommodating groove 15;

[0134] The bottom of the packaging bag 40 is fixedly connected to the rotating shaft 50, and when the packaging bag 40 is in a folded state, it is wound around the rotating shaft 50.

[0135] In this embodiment, the packaging buffer structure 100 further includes a rotating shaft 50. The rotating shaft 50 is rotatably arranged in the accommodating groove 15, and the bottom of the packaging bag 40 is fixedly connected to the rotating shaft 50. When the packaging bag 40 is not needed and is in a folded state, the rotating shaft 50 can be rotated so that the packaging bag 40 is wound around the rotating shaft 50. When the packaging bag 40 needs to be used, only the open end of the packaging bag 40 needs to be pulled to take out the packaging bag 40 from the accommodating groove 15. With such a setting, the process of taking and storing the packaging bag 40 is more convenient, and there is no need for the user to manually fold the packaging bag 40 into a size that can be placed in the accommodating groove 15, improving the convenience of using the packaging bag 40.

[0136] Please refer to Figure 9 , in some embodiments of the packaging buffer structure 100 of the present application, the packaging buffer structure 100 further includes a retraction unit 60, and the retraction unit 60 is in transmission connection with the rotating shaft 50 to provide a retraction force opposite to the rotation direction of the rotating shaft 50 when the packaging bag 40 is pulled out to the rotating shaft 50.

[0137] In this embodiment, the packaging buffer structure 100 further includes a retraction unit 60. The retraction unit 60 is arranged in the memory seat 10 and is in transmission connection with the rotating shaft 50. It can be understood that when the packaging bag 40 needs to be used, the open end of the packaging bag 40 is pulled to take out the packaging bag 40 from the accommodating groove 15. At this time, the rotating shaft 50 rotates accordingly. The setting of the retraction unit 60 can apply a rotational force to the rotating shaft 50 when the packaging bag 40 is not needed and is released, so as to automatically rewind the packaging bag 40. The structure is simple, making the recycling of the packaging bag 40 more convenient.

[0138] It should be noted that in this embodiment, the retraction unit 60 can be a volute spring, with the outer end of the volute spring fixed to the memory seat 10 and the inner end connected to the rotating shaft 50 to rotate with the rotating shaft 50; the retraction unit 60 can also be an air column retraction unit 60 similar to the air column pre-tightening unit 23 in the above embodiment, or a combination of multiple retraction units 60, which is not limited herein.

[0139] Among them, please refer to Figure 10 , when the air column retraction unit 60 is adopted, the rotating shaft 50 has a hollow structure inside, and a connecting cylinder 63 similar to the fixed cylinder 233 in the aforementioned pre-tightening unit 23 is provided at the end of the structure of the rotating shaft 50, so that the end of the rotating shaft 50 is sleeved on the connecting cylinder 63 to enable the rotating shaft 50 to rotate around the connecting cylinder 63, and a torsion air column 61 and an expansion air column 62 are respectively arranged in the rotating shaft 50 and the connecting cylinder 63. The torsion air column 61 and the expansion air column 62 are both elastic hollow structures and are interconnected. One end of the torsion air column 61 facing away from the expansion air column 62 is fixedly connected to the rotating shaft 50, and the expansion air column 62 is fixedly connected to the connecting cylinder 63. With such a setting, when the packaging bag 40 is pulled out, the traction rotating shaft 50 drives one end of the torsion air column 61 to rotate, causing the torsion air column 61 to twist, so as to discharge the gas in the torsion air column 61 into the expansion air column 62. At this time, the expansion air column 62 will generate an elastic restoring force, thus having a tendency to discharge the air back into the torsion air column 61, so that the torsion air column 61 has a tendency to rotate back to its original position and drive the rotating shaft 50 to reset and the packaging bag 40 to retract; when the packaging bag 40 is not needed and the open end of the packaging bag 40 is released, the expansion air column 62 shrinks back to its original shape under the action of the elastic restoring force, so that the gas in the expansion air column 62 can be discharged back into the torsion air column 61, causing the torsion air column 61 to expand and reverse-twist, and then driving the rotating shaft 50 to rotate back to recycle the packaging bag 40.

[0140] Please refer to Figure 10 , in some embodiments of the packaging buffer structure 100 of the present application, the torsion air column 61 is thicker than the expansion air column 62, and the internal cavity of the torsion air column 61 is larger than the internal cavity of the expansion air column 62.

[0141] In this embodiment, the torsion air column 61 is made thicker than the expansion air column 62, and the internal cavity of the torsion air column 61 is made larger than the internal cavity of the expansion air column 62. With such a setting, it can be ensured that when the packaging bag 40 is pulled out, the torsion air column 61 can discharge sufficient gas into the expansion air column 62 to cause the expansion air column 62 to expand and deform, so that the expansion air column 62 can generate a larger elastic restoring force, enabling the packaging bag 40 to be recycled faster and improving the recycling speed of the packaging bag 40.

[0142] Please refer to Figure 11, in some embodiments of the packaging buffer structure 100 of the present application, the outer surface of the torsion air column 61 has a torsion spiral structure 611, and the spiral direction of the torsion spiral structure 611 is the same as the torsion direction of the torsion air column 61 when the packaging bag 40 is pulled out.

[0143] In this embodiment, the outer surface of the torsion air column 61 has a torsion spiral structure 611, and the spiral direction of the torsion spiral structure 611 is the same as the torsion direction of the torsion air column 61 when the packaging bag 40 is pulled out. With such a setting, when the packaging bag 40 is pulled out, the torsion spiral structure 611 itself will not hinder the torsion of the torsion air column 61. When the packaging bag 40 is released and recovered, during the process that the gas in the expansion air column 62 is discharged back into the torsion air column 61 to inflate and restore the torsion air column 61, since the torsion spiral structure 611 is also in a deformed state, a corresponding restoring force will be generated during the restoration process to promote the structural restoration of the torsion air column 61, accelerate the recovery of the packaging bag 40, and ensure that the packaging bag 40 is recovered in place.

[0144] Please refer to Figure 11 , in some embodiments of the packaging buffer structure 100 of the present application, the outer surface of the expansion air column 62 has an expansion spiral structure 621.

[0145] In this embodiment, an expansion spiral structure 621 is provided on the outer surface of the expansion air column 62. It can be understood that during the process of pulling out the packaging bag 40, the rotating shaft 50 will drive the torsion air column 61 to twist to discharge the gas in the torsion air column 61 into the expansion air column 62 to make the expansion air column 62 expand and thicken. At this time, the expansion spiral structure 621 on the outer surface of the expansion air column 62 will gradually become shallower or disappear due to the expansion of the expansion air column 62; when the packaging bag 40 is released and recovered, the expansion air column 62 will contract and restore to discharge the gas back into the torsion air column 61. During this process, since the expansion spiral structure 621 is in a deformed state, a corresponding restoring force will be generated during the restoration process to promote the structural restoration of the expansion air column 62, so that the gas can be quickly discharged back into the torsion air column 61, accelerate the restoration speed of the torsion air column 61, and enable the packaging bag 40 to be quickly recovered.

[0146] Please refer to Figure 10 , in some embodiments of the packaging buffer structure 100 of the present application, the retraction unit 60 further includes a rotating piece 64, the rotating piece 64 is disposed inside the rotating shaft 50 and connected to the rotating shaft 50, and the torsion end of the torsion air column 61 is connected to the rotating piece 64.

[0147] In this embodiment, the retraction unit 60 further includes a rotating piece 64. The rotating piece 64 is arranged inside the rotating shaft 50 and connected to the inner wall of the rotating shaft 50. At this time, the twisted end of the torsion air column 61 is fixed on the rotating piece 64, so that the torsion air column 61 can be driven to twist by the rotating piece 64 when the rotating shaft 50 rotates; and the circumferential edges of the rotating piece 64 are all connected to the inner wall of the rotating shaft 50, so that the rotating piece 64 is evenly stressed. To ensure that the rotating piece 64 and the rotating shaft 50 rotate synchronously, avoiding the situation of unbalanced force resulting in misaligned rotation of the rotating piece 64 and the rotating shaft 50 and force unloading, thereby avoiding the problem that the pulling distance of the packaging bag 40 does not match the torsion angle of the torsion air column 61 and the problem that the packaging bag 40 cannot be recovered properly, and improving the stability of the overall structure operation of the packaging bag 40 device.

[0148] Please refer to Figure 10 , in some embodiments of the packaging buffer structure 100 of the present application, the retraction unit 60 further includes a fixing piece 65. The fixing piece 65 is horizontally arranged inside the connecting cylinder 63 and connected to the connecting cylinder 63, and is located between the torsion air column 61 and the expansion air column 62. The fixing piece 65 is provided with a guiding through hole 2351. One end of the torsion air column 61 and the expansion air column 62 that are connected is fixed to the fixing piece 65, and the air passing hole 2321 and the ventilation hole 2311 are communicated through the guiding through hole 2351.

[0149] In this embodiment, the retraction unit 60 further includes a fixing piece 65. The fixing piece 65 is horizontally arranged between the torsion air column 61 and the expansion air column 62 and is fixedly connected inside the connecting cylinder 63. At this time, the connected ends of the torsion air column 61 and the expansion air column 62 are both fixed to the fixing piece 65, and the ventilation hole 2311 on the torsion air column 61 is communicated with the guiding through hole 2351 on the fixing piece 65, and the air passing hole 2321 on the expansion air column 62 is communicated with the guiding through hole 2351, so that gas can flow between the torsion air column 61 and the expansion air column 62 through the guiding through hole 2351. In some embodiments, a ventilation joint 66 is arranged through the guiding through hole 2351. The two ends of the ventilation joint 66 respectively protrude from the two surfaces of the fixing piece 65 and are respectively inserted into the ventilation hole 2311 of the torsion air column 61 and the air guiding hole of the expansion air column 62 and are communicated with the air guiding hole and the ventilation hole 2311, thereby improving the connection stability between the torsion air column 61 and the fixing piece 65 and between the expansion air column 62 and the fixing piece 65.

[0150] In addition, in some embodiments, the peripheral sides of the fixing piece 65 are all connected to the connecting cylinder 63, improving the connection strength between the fixing piece 65 and the connecting cylinder 63, thereby avoiding the fixing piece 65 rotating together with the torsion air column 61 when the torsion air column 61 twists, and thus avoiding the problem that the expansion air column 62 rotates together resulting in too small restoring force of the expansion air column 62 and the packaging bag 40 not being recovered properly, thereby improving the structural and performance stability.

[0151] Please refer to Figure 10 , in some embodiments of the packaging buffer structure 100 of the present application, there are two connecting cylinders 63, two torsion air columns 61 and two expansion air columns 62. Both ends of the rotating shaft 50 are respectively sleeved in the two connecting cylinders 63. Each expansion air column 62 is fixed in one of the connecting cylinders 63. The two torsion air columns 61 are arranged side by side in the rotating shaft 50 and are respectively communicated with one expansion air column 62. The adjacent ends of the two torsion air columns 61 are fixedly connected to the rotating shaft 50.

[0152] In this embodiment, there are two connecting cylinders 63, which are respectively arranged at both ends of the rotating shaft 50 to improve the rotation stability of the rotating shaft 50. Further, there are two torsion air columns 61 and two expansion air columns 62. The two torsion air columns 61 are arranged side by side in the rotating shaft 50. The two expansion air columns 62 are respectively arranged in the connecting cylinders 63 at both ends. The adjacent ends of the two torsion air columns 61 are fixedly connected to the rotating shaft 50. They can be fixedly connected to the rotating piece 64 as in the above embodiment at the same time, or two rotating pieces 64 can be respectively arranged, or the torsion air columns 61 can be fixed through other skeleton structures. Each torsion air column 61 is communicated with the adjacent expansion air column 62. With such an arrangement, when the packaging bag 40 is pulled out, the rotating shaft 50 will drive the two torsion air columns 61 to twist at the same time, so as to discharge the gas in the two torsion air columns 61 to the expansion air columns 62 at both ends, so that the two expansion air columns 62 generate elastic restoring forces at the same time, and the two torsion air columns 61 generate reverse rotation forces. It can be understood that increasing the number of the torsion air columns 61 and the expansion air columns 62 can increase the recovery force applied to the packaging bag 40, make the packaging bag 40 press the product 200 more tightly, and speed up the recovery speed during recovery. In addition, arranging the two expansion air columns 62 and the two torsion air columns 61 symmetrically along the length direction of the rotating shaft 50 can apply approximately equal forces at both ends of the rotating shaft 50 and improve the stability of the rotating shaft 50 during the movement process.

[0153] Please refer to Figure 10 , in some embodiments of the packaging buffer structure 100 of the present application, the two torsion air columns 61 are communicated with each other.

[0154] In this embodiment, the two torsion air columns 61 are communicated with each other. With such an arrangement, the air pressures in the two torsion air columns 61 and the two expansion air columns 62 can be balanced to ensure that the same force is applied to both ends of the rotating shaft 50, and to avoid the torsion phenomenon in the rotating shaft 50 due to uneven forces at both ends of the rotating shaft 50, resulting in fatigue damage of the rotating shaft 50 after long-term use. The two torsion air columns 61 are communicated with each other to apply the same force at both ends of the rotating shaft 50, so that the whole rotating shaft 50 rotates uniformly, reducing the damage risk and ensuring stable performance and service life.

[0155] In some embodiments, a rotating piece 64 is disposed inside the rotating shaft 50. At this time, through holes 2312 can be formed in the rotating piece 64 so that two torsion air columns 61 communicate with each other through the through holes 2312. Further, a connecting joint can be inserted through the through holes 2312. Both ends of the connecting joint protrude from the two surfaces of the rotating piece 64 and are respectively inserted into the two torsion air columns 61 to conduct the two torsion air columns 61. With such a setting, the connection stability of the torsion air columns 61 and the overall structural stability of the packaging bag 40 device can be improved.

[0156] Please refer to Figure 3 , in some embodiments of the packaging buffer structure 100 of the present application, the packaging buffer structure 100 further includes a rotation stopping unit 70, and the rotation stopping unit 70 is disposed on the memory seat 10 to lock the rotating shaft 50 when the packaging bag 40 is in a packaging state.

[0157] In this embodiment, a rotation stopping unit 70 is further provided in the packaging buffer structure 100. The rotation stopping unit 70 can lock the rotating shaft 50 in the packaging state, avoiding the passive recovery of the packaging bag 40 caused by the rotation of the rotating shaft 50, thereby preventing the memory seat 10 and the product 200 from falling out of the packaging bag 40. The setting of the rotation stopping unit 70 can improve the structural stability when the packaging bag 40 packages the memory seat 10 and the product 200.

[0158] Among them, the rotation stopping unit 70 can be a rotation stopping valve, and the rotation stopping valve can be a clamping structure. When it is necessary to lock the rotating shaft 50, the end of the rotating shaft 50 is clamped and fixed. It can also be a friction plate structure similar to a bicycle brake pad, so that the friction plate abuts against the side wall of the rotating shaft 50, and the rotating shaft 50 is locked by using friction. It can also be a structure similar to an electromagnet, so that a magnetic attraction structure is provided on the rotating shaft 50, and when it is necessary to lock the rotating shaft 50, the rotation stopping valve is energized to generate a magnet to attract and lock the rotating shaft 50.

[0159] The present application also proposes a packaging box, which includes a box body and the packaging buffer structure 100 as described in any one of the foregoing items. The packaging buffer structure 100 is disposed inside the box body. The packaging buffer structure 100 includes a memory seat 10 and a pre-tightening belt device 20. The memory seat 10 is bendable, and a supporting surface is provided on the memory seat 10. The pre-tightening belt device 20 is disposed on the memory seat 10, and the pre-tightening belt device 20 is provided with a pre-tightening belt 21. The pre-tightening belt 21 can cross the supporting surface to be respectively connected to the two opposite side edges of the memory seat 10. Among them, the box body can be selected according to actual needs. Since the packaging buffer structure 100 of the present application can be bent and deformed, while being applicable to the packaging of products 200 of different sizes, it can also be placed in boxes of different sizes, having high applicability. Among them, the product 200 can be, but is not limited to, electronic products 200 such as unmanned aerial vehicles, display screens, virtual reality devices, mobile phones, etc., and can also be products such as ceramics or glass.

[0160] Since the packaging box proposed in this application applies all the technical solutions of the foregoing all embodiments, it inevitably has all the beneficial effects brought by the foregoing all technical solutions, which will not be elaborated one by one herein.

[0161] The foregoing are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made by using the content of the specification and drawings of the present invention under the inventive concept of the present invention, or direct / indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims

1. A packaging buffer structure, characterized in that, include: A memory seat, wherein the memory seat has a support surface, and at least a portion of an edge of the memory seat can be bent toward the support surface; and A pre-tensioning belt device, the pre-tensioning belt device is arranged on the memory seat, and the pre-tensioning belt of the pre-tensioning belt device is used to enclose with the supporting surface to form a pre-tensioning space for placing the product; The memory seat comprises: a direction-changing frame, wherein the support surface is formed on one side of the direction-changing frame; and A direction-changing bracket, which is arranged on the support surface and is arranged around the edge of the support surface to form a limiting groove with the direction-changing frame; The direction-changing skeleton comprises a fixed section, a bending section and a first direction-changing structure, wherein the bending section is provided on at least one side of the fixed section, and the first direction-changing structure is provided between the fixed section and the bending section, so that the bending section can be bent relative to the fixed section toward the supporting surface; The first direction-changing structure comprises an elastic plate and at least one reinforcing rib, wherein the elastic plate is arranged between the fixed section and the bending section and has a portion of the supporting surface, the thickness of the elastic plate is smaller than the thickness of the fixed section and the bending section, the reinforcing rib is convexly arranged on a side of the elastic plate away from the supporting surface, and the extending direction of the reinforcing rib is perpendicular to the arrangement direction of the fixed section and the bending section; And / or, each side of the fixed section is provided with a bending section, and a first direction-changing structure is provided between the fixed section and each bending section; And / or, the pre-tensioning belt device is provided at the fixing section; And / or, the packaging buffer structure further comprises a lock-release structure, wherein the lock-release structure is arranged on the memory seat to lock the bending section when the bending section is bent into place; The direction-changing bracket comprises: Two second direction-changing structures, the second direction-changing structures extending along the arrangement direction of the fixed section and the bending section, the two second direction-changing structures being arranged on both sides of the supporting surface; and Two surrounding edges, the two surrounding edges are arranged between the two second direction-changing structures, the two ends of the surrounding edges are respectively connected to the two second direction-changing structures, and one of the surrounding edges is arranged at the bending section.

2. The packaging buffer structure according to claim 1, wherein The second direction-changing structure is a wave-like structure; And / or, each side of the fixed section is provided with a bending section, each of the surrounding edges and each of the second direction-changing structures are respectively provided on a bending section, and the surrounding edge includes two fixed columns and a third direction-changing structure provided between the two fixed columns.

3. The packaging buffer structure according to claim 1 or 2, characterized in that, The pre-tensioning belt device further comprises a winding shaft and a pre-tensioning unit, wherein the winding shaft is rotatably arranged on the memory seat, the pre-tensioning belt is wound around the winding shaft, and the pre-tensioning unit is drivingly connected with the winding shaft, and can provide a reverse pre-tensioning force when the pre-tensioning belt is pulled out, so that the pre-tensioning belt has a tendency to retract, so as to tie the product; And / or, the memory seat is provided with a mounting groove, the pre-tensioning belt device is arranged in the mounting groove, and the pre-tensioning belt can extend outward from a notch of the mounting groove; And / or, the packaging buffer structure further comprises an elastic sleeve, the elastic sleeve is coated on the outer surface of the memory seat, and the pre-tightening belt is passed through the elastic sleeve and extends outward; And / or, the packaging buffer structure further includes a packaging bag, the bottom of the packaging bag is connected to the memory seat, and the packaging bag can be reversely sleeved on the memory seat and the pre-tightening belt device.

4. The packaging buffer structure according to claim 3, characterized in that, When the packaging buffer structure includes a packaging bag, a receiving groove is formed on the side of the memory seat. The packaging bag has a folded state and a packaging state, and is received in the receiving groove when in the folded state.

5. The packaging buffer structure according to claim 4, wherein, The packaging buffer structure is provided with a rotating shaft, and the rotating shaft is rotatably arranged in the receiving groove; The bottom of the packaging bag is fixedly connected to the rotating shaft, and the packaging bag is wound around the rotating shaft when in the folded state.

6. The packaging buffer structure according to claim 5, wherein The packaging buffer structure further includes a retracting unit, and the retracting unit is in transmission connection with the rotating shaft to provide a retracting force opposite to the rotating direction of the rotating shaft when pulling out the packaging bag to the rotating shaft; And / or, the packaging buffer structure further includes a rotation stopping unit, and the rotation stopping unit is arranged on the memory seat to lock the rotating shaft when the packaging bag is in the packaging state.

7. A packaging box, characterized in that, It includes a box body and the packaging buffer structure according to any one of claims 1 to 6, and the packaging buffer structure is arranged in the box body.

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