Anti-falling buffering packaging box

Abstract

The invention discloses an anti-falling buffering packaging box. Comprising a side plate piece and two pop-up assemblies, the two pop-up assemblies and the connecting shaft assemblies are arranged in a one-to-one correspondence mode, each pop-up assembly comprises a sliding piece, an elastic piece, a support and an elastic module, the sliding pieces are arranged on the side plate piece in a sliding mode, one ends of the sliding pieces abut against the side walls of the two first sections, and the other ends of the sliding pieces are connected with the elastic pieces; the end, away from the sliding piece, of the elastic piece is connected to the side plate piece, the support is rotationally connected to the connecting shaft, the support is provided with an extending position extending out of the side, away from the inner space of the box body, of the connecting shaft assembly on the rotating path of the support and a closing position clamped to the sliding piece, and when the support rotates to the closing position from the extending position, the elastic module can store energy. When the connecting shaft is impacted, the axial movement of the connecting shaft can enable the second section to extrude the sliding piece to move so as to release the clamping between the sliding piece and the bracket. The packaging box solves the technical problem that the corners and the edges of an existing packaging box are prone to being damaged by multiple times of impact in the falling process, and consequently internal objects are damaged.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging boxes, and in particular to a fall-proof cushioning packaging box. Background Art

[0002] In modern logistics and transportation, packaging boxes are the core carriers of cargo protection, and their performance directly affects the safety and efficiency of commodity transportation.

[0003] At present, the mainstream packaging materials in the market mainly include wood (thick boards, plywood), corrugated cardboard and plastic systems, but all of them have significant technical defects. Wooden packaging boxes are easy to become pest carriers due to their natural pore structure, and are strictly restricted by international plant quarantine measures standards; the formaldehyde adhesives used in the preparation of plywood have the risk of VOCs release, and the non-degradable materials lead to increasing environmental protection costs. Although plastic boxes avoid biosafety and chemical pollution issues, they face environmental pressures and high raw material costs of non-degradable materials. As an alternative, corrugated boxes have environmental advantages, but due to the mechanical properties of fiber materials, their compressive strength is positively correlated with thickness. It is difficult to break through the compressive limit of 3kN / m² while maintaining a reasonable cost. At the same time, there are technical bottlenecks such as low buffering energy absorption efficiency (energy absorption rate under dynamic impact is less than 40%), and weak corners and edges under multiple impacts. According to statistics, the cargo damage rate due to insufficient packaging protection during the logistics process is as high as 1.2%-3.5%. Among them, the instantaneous acceleration exceeding 50G caused by rigid collision is the main cause of damage to precision instruments and fragile items. Summary of the invention

[0004] In view of this, the present invention provides a fall-proof cushioning packaging box, which is used to solve the technical problem that the corners and edges of the existing packaging box are easily damaged by multiple impacts during falling, thereby causing damage to the internal items.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: A fall-proof cushioning packaging box, comprising four side panel mechanisms, two flat plate members, and a plurality of coupling assemblies for connecting the side panel mechanisms with the flat plate members, and the corners of the box structure are all provided with notches; The side plate mechanism is provided with two first protrusions at two ends relative to the two flat pieces, and the side walls around each of the flat pieces are provided with two second protrusions that can extend into between the two first protrusions; a shaft coupling assembly includes two connecting shafts, each of the connecting shafts passes through one of the first protrusions and one of the second protrusions, one end of the connecting shaft is located in the notch, and the other end is located between the two second protrusions; the end of the connecting shaft away from the notch is detachably connected with a protrusion, and the protrusion has a first section and a second section whose radial size is larger than the first section; The side panel mechanism includes a side panel and two pop-up assemblies, and the two pop-up assemblies are arranged in a one-to-one correspondence with each of the connecting shaft assemblies. The pop-up assembly includes a sliding member, an elastic member, a bracket and an elastic module. The sliding member is slidably arranged on the side panel, one end of the sliding member abuts against the side walls of the two first sections, and the other end is connected to the elastic member, the end of the elastic member away from the sliding member is connected to the side panel, the bracket is rotatably connected to the connecting shaft, and the bracket has an expenditure position on the side of the connecting shaft assembly away from the internal space of the box body on its rotation path, and a closed position engaged with the sliding member, when the bracket is rotated from the expenditure position to the closed position, the elastic module can store energy, and the axial movement of the connecting shaft when being hit can cause the second section to squeeze the sliding member to move and release the engagement between the sliding member and the bracket.

[0006] In some embodiments of the anti-fall cushioning packaging box, the packaging box also includes a plurality of expansion bags, the expansion bags include a mounting frame, a puncture needle, a first box and a second box, the mounting frame is fixedly connected to the inner wall of the notch, the first box is accommodated in the second box and fixedly connected to the bottom of the second box, water is stored in the first box, water-absorbing and expanding material is stored in the second box, the second box is fixedly connected to the mounting frame, the puncture needle is fixedly connected to the mounting frame, and the extension direction of the puncture needle points to the second box so that the second box and the first box can be punctured in sequence when impacted to cause the water-absorbing and expanding material to absorb water and expand.

[0007] In some embodiments of the anti-fall cushioning packaging box, the distance between the end of the needle away from the second box and the second box is a first distance, and the distance between the end of the connecting shaft extending into the notch and the second box is a second distance, and the first distance is smaller than the second distance.

[0008] In some embodiments of the anti-fall cushioning packaging box, each of the brackets includes a support rod and two rotating rods, each of the rotating rods in a bracket is rotatably connected to each of the connecting shafts one by one, and both ends of the support rod are respectively connected to the ends of the rotating rod away from the connecting shaft.

[0009] In some embodiments of the anti-fall cushioning packaging box, each of the brackets includes a support plate and two rotating rods, each of the rotating rods in a bracket is rotatably connected to each of the connecting shafts one by one, and both ends of the support plate are respectively connected to the ends of the rotating rod away from the connecting shaft.

[0010] In some embodiments of the fall-proof cushioning packaging box, a groove is provided on the surface of the side panel, the sliding member is slidably connected to the bottom of the groove, and the bracket is accommodated in the groove when located in the closed position.

[0011] In some embodiments of the anti-fall cushioning packaging box, the elastic module includes a first telescopic rod, a second telescopic rod and two sets of torsion springs, the first telescopic rod is rotatably connected to the side wall of the groove, and the other end is rotatably connected to the second telescopic rod through the torsion spring, the end of the second telescopic rod away from the first telescopic rod is fixedly connected to the support plate, and the other side of the support plate away from the second telescopic rod is rotatably connected to the rotating rod through the torsion spring.

[0012] In some embodiments of the fall-proof cushioning packaging box, mesh holes are provided on the support plate.

[0013] In some embodiments of the anti-fall cushioning packaging box, the side panel mechanism further includes a connecting pipe, an inner panel, a first honeycomb airbag and a second honeycomb airbag, one side of the first honeycomb airbag is bonded to the inner side of the side panel, and the other side is bonded to the inner panel, and the side of the inner panel facing away from the first honeycomb airbag is bonded to the second honeycomb airbag; The side panel is provided with an air vent, the inner panel is provided with an air passage, the air inlet of the air passage is connected with the air vent through a connecting pipe, and the air outlet of the air passage is connected with each unit on the first honeycomb airbag and the second honeycomb airbag.

[0014] Implementing the embodiments of the present invention will have at least the following beneficial effects: The above-mentioned anti-falling buffer packaging box has the final effect of buffering and anti-collision. Specifically, the anti-falling buffer packaging box of the present invention, after falling and causing the corners of the box to collide, the connecting shaft will move axially with the protrusion thereon, and the axial movement of the protrusion will cause the sliding part to be pushed by the second section and compress the elastic part. After the sliding part moves, the clamping relationship between the sliding part and the bracket will be released, and then the bracket in contact with the clamping relationship will be turned from the closed position to the extended position under the action of the elastic module, and the bracket in the extended position will play a role similar to a leg to prop up the box structure to avoid further damage to the box, and the combination of the elastic module and the bracket can also play a certain elastic buffering role, thereby solving the technical problem that the corners and edges of the existing packaging box are easily damaged by multiple impacts during falling, resulting in damage to the internal items. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 is an overall schematic diagram of a packaging box when the bracket is in a closed position in one embodiment; Figure 2 is an overall schematic diagram of a packaging box when the bracket is in the extended position in one embodiment; Figure 3 for Figure 1 Schematic diagram of the structural section of the AA part; Figure 4 for Figure 3 A schematic diagram of the structure of part B in the middle; Figure 5 A top view of a packaging box in one embodiment; Figure 6 for Figure 5 Schematic diagram of the structural cross section of the CC part; Figure 7 for Figure 2 A schematic diagram of the structure of the D part; Figure 8 for Figure 2 The enlarged schematic diagram of the structure of part E in the middle; Fig. 9 A schematic diagram of an expansion bag and its connection structure in one embodiment; Fig.10 for Fig. 9 A front view of the structure shown; Fig.11 for Fig.10 Schematic diagram of the structural cross-section of the FF part.

[0017] in: 1. Side panel mechanism; 11. Side panel member; 111. First protrusion; 112. Groove; 113. Ventilation hole; 12. Pop-up assembly; 121. Sliding member; 1211. Clamping claw; 122. Elastic member; 1231. Support plate; 12311. Clamping groove; 1232. Rotating rod; 1241. First telescopic rod; 1242. Second telescopic rod; 1243. Torsion spring; 13. Inner panel member; 131. Airway; 14. First honeycomb airbag; 15. Second honeycomb airbag; 2. Flat plate; 21. Second protrusion; 3. Coupling assembly; 31. Connecting shaft; 32. Protrusion; 321. First section; 322. Second section; 4. expansion pack; 41. mounting frame; 42. puncture needle; 43. second box; 44. first box; 45. third box; 100. Gap. DETAILED DESCRIPTION

[0018] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Preferred embodiments of the present invention are provided in the drawings. However, the present invention can be implemented in many other different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0019] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0021] It should be noted here that the various connection methods involved in the present invention can be arbitrary unless specifically stated. For example, the fixed connection can be achieved by bolts and nuts through detachable fixation, welding or one-piece molding, the sliding connection can be achieved through grooves and guide rail structures of various shapes, and the rotating connection can be achieved through hinges, rotating shafts, etc., as long as the existing method can achieve the corresponding connection relationship.

[0022] Combine the following Figure 1-Figure 11 The anti-falling cushioning packaging box involved in the present invention is further described.

[0023] In an embodiment of a fall-proof cushioning packaging box, Figure 1-Figure 6The packaging box includes four side panel mechanisms 1, two flat members 2, and a plurality of coupling assemblies 3 for connecting the side panel mechanisms 1 with the flat members 2. The corners surrounding the box structure are provided with notches 100. Two first protrusions 111 are provided at the two ends of the side panel mechanism 1 relative to the two flat members 2, and two second protrusions 21 are provided on the surrounding side walls of each flat member 2, which can extend between the two first protrusions 111. A coupling assembly 3 includes two connecting shafts 31, each connecting shaft 31 passes through a first protrusion 111 and a second protrusion 21, one end of the connecting shaft 31 is located at the notch 100, and the other end is located between the two second protrusions 21. The end of the connecting shaft 31 away from the notch 100 is detachably connected with a protrusion 32, and the protrusion 32 has a first section 321 and a second section 322 whose radial dimension is larger than the first section 321. The side panel mechanism 1 includes a side panel member 11 and two pop-up components 12. The two pop-up components 12 are arranged in a one-to-one correspondence with each coupling component 3. The pop-up component 12 includes a sliding member 121, an elastic member 122, a bracket and an elastic module. The sliding member 121 is slidably arranged on the side panel member 11. One end of the sliding member 121 abuts against the side walls of the two first sections 321, and the other end is connected to the elastic member 122. The end of the elastic member 122 away from the sliding member 121 is connected to the side panel member 11. The bracket is rotatably connected to the connecting shaft 31. The bracket has an expenditure position on the side of the coupling component 3 away from the internal space of the box body on its rotation path, and a closed position clamped to the sliding member 121. When the bracket is rotated from the expenditure position to the closed position, the elastic module can store energy. The axial movement of the connecting shaft 31 when being hit can cause the second section 322 to squeeze the sliding member 121 to move and release the clamping between the sliding member 121 and the bracket.

[0024] In this embodiment, after the box corners collide due to falling, the connecting shaft 31 will move axially with the protrusion 32 thereon, and the axial movement of the protrusion 32 will cause the sliding member 121 to be pushed by the second section 322 and compress the elastic member 122. After the sliding member 121 moves, the clamping relationship between the sliding member 121 and the bracket will be released, and then the bracket in contact with the clamping relationship will be transferred from the closed position to the extended position under the action of the elastic module, and the bracket in the extended position will play a role similar to a leg to prop up the box structure to avoid further damage to the box, and the combination of the elastic module and the bracket can also play a certain elastic buffering role, thereby solving the technical problem that the corners and edges of the existing packaging box are easily damaged by multiple impacts during falling, resulting in damage to the internal items.

[0025] By applying the anti-falling cushioning packaging box of the present invention, high-value items can be better protected.

[0026] Specifically, holes are provided on the first protrusion 111 and the second protrusion 21 for the shaft to pass through so that the flat plate 2 can be connected to the side plate mechanism 1. The protrusion 32 can be installed after the connecting shaft 31 passes through the first protrusion 111 and the second protrusion 21, and the protrusion 32 and the connecting shaft 31 can be fixed by being sleeved on the end of the connecting shaft 31 and then inserting a screw from the side of the protrusion 32 to abut against the connecting shaft 31. Furthermore, the shape of the protrusion 32 can be a combination of a cylindrical shape and a conical shape, the cylindrical part is the second section 322, and the conical part is the first section 321.

[0027] More specifically, the elastic module can be a spring or an elastic body made of elastic material such as silicone, one end of which is connected to the bracket and the other end is connected to the side plate 11. When the bracket is turned from the extended position to the closed position, the elastic module is compressed. The bracket and the sliding member 121 can be connected in the form of a slot 12311 and a claw 1211, and the supported component can be a rod-shaped structure or a plate-shaped structure.

[0028] It should also be noted that when the side panel mechanism 1 and the two flat plate members 2 are arranged to form a box structure with a notch 100, the notch 100 can be used to detachably install three panels by bolting and connecting the shaft 31, thereby closing the box.

[0029] It is understandable that when the side wall of the packaging box collides, it will not cause much damage due to the large contact area. The present invention is aimed at the corners and edges of the packaging box.

[0030] In an embodiment of a fall-proof cushioning packaging box, Figure 1 , Figure 9-11 The packaging box also includes a plurality of expansion packs 4, which include a mounting frame 41, a puncture needle 42, a first box 44 and a second box 43. The mounting frame 41 is fixedly connected to the inner wall of the notch 100, the first box 44 is received in the second box 43 and fixedly connected to the bottom of the second box 43, water is stored in the first box 44, and water-absorbing and expanding material is stored in the second box 43. The second box 43 is fixedly connected to the mounting frame 41, and the puncture needle 42 is fixedly connected to the mounting frame 41. The extension direction of the puncture needle 42 points to the second box 43, so that the second box 43 and the first box 44 can be punctured in sequence when impacted to make the water-absorbing and expanding material absorb water and expand.

[0031] In this embodiment, the first box 44 and the second box 43 can be punctured by the needle 42, and the needle 42 can also destroy the effect of the first box 44 and the second box 43, which can facilitate the contact between water and the water-swellable material. Specifically, the water-swellable material can be a hydrogel or a water-absorbent resin.

[0032] Specifically, the thorn needle 42 can be a columnar structure with a pointed end at one end facing the box. When the pointed end of the thorn needle 42 pierces the box, the hole pierced by the columnar structure is expanded to form damage, which can promote the water in the first box 44 to flow out and avoid being blocked by the thorn needle 42. Preferably, the thorn needle 42 can also be a hollow structure with a plurality of small holes opened around it, so that even if it is blocked, the water can flow out through the small holes.

[0033] Preferably, additional structures such as air bags and bags may be provided to hold water and expand objects after contact with the water-swellable material, thereby better protecting the edges and corners.

[0034] In addition, the water-swellable material can also use an existing foaming agent, and a third box 45 can be added to contain compressed gas. The compressed gas breaks down the water and then reacts with the foaming agent to form a buffer foam and expand.

[0035] In an embodiment of a fall-proof cushioning packaging box, as Figure 1 , Figure 5 , Figure 9-11 As shown, the distance between the end of the needle 42 away from the second box 43 and the second box 43 is a first distance, and the distance between the end of the connected shaft 31 extending into the notch 100 and the second box 43 is a second distance, and the first distance is smaller than the second distance.

[0036] In this embodiment, as shown in the accompanying drawings, the needle 42 is closer to the box body than the end of the connecting shaft 31, that is, the end of the connecting shaft 31 is blocked outside the expansion bag 4 as a whole. After a fall and collision, the connecting shaft 31 is first moved axially to open the bracket, and further collision will trigger the expansion bag 4 to expand.

[0037] In combination with the above embodiments, the specific structure of the bracket can be the following two embodiments: In an embodiment of a fall-proof cushioning packaging box, each bracket includes a support rod and two rotating rods 1232. Each rotating rod 1232 in a bracket is rotatably connected to each connecting shaft 31 one by one, and the two ends of the support rod are respectively connected to the end of the rotating rod 1232 away from the connecting shaft 31.

[0038] In an embodiment of a fall-proof cushioning packaging box, as Figure 1 , Figure 2 , Figure 7 and Figure 8 Each bracket includes a support plate 1231 and two rotating rods 1232. Each rotating rod 1232 in a bracket is rotatably connected to each connecting shaft 31 one by one. The two ends of the support plate 1231 are respectively connected to the ends of the rotating rod 1232 away from the connecting shaft 31.

[0039] In the above two embodiments, the difference lies in whether it is a support rod or a support plate 1231, and both a rod-shaped structural member and a plate-shaped structural member are acceptable.

[0040] In an embodiment of a fall-proof cushioning packaging box, a groove 112 is opened on the surface of the side panel 11, and a sliding member 121 is slidably connected to the bottom of the groove 112. When the bracket is in the closed position, it is accommodated in the groove 112.

[0041] In this embodiment, by providing the groove 112 , the bracket and the elastic module can be better placed, so that the bracket and the elastic module will not protrude outside the side panel 11 when in the closed position.

[0042] It can be understood that the number of the grooves 112 is also multiple, corresponding to the number of the brackets.

[0043] In an embodiment of a fall-proof cushioning packaging box, as Figure 2 , Figure 7 and Figure 8 The elastic module includes a first telescopic rod 1241, a second telescopic rod 1242 and two sets of torsion springs 1243. The first telescopic rod 1241 is rotatably connected to the side wall of the groove 112, and the other end is rotatably connected to the second telescopic rod 1242 through the torsion spring 1243. The end of the second telescopic rod 1242 away from the first telescopic rod 1241 is fixedly connected to the support plate 1231, and the other side of the support plate 1231 away from the second telescopic rod 1242 is rotatably connected to the rotating rod 1232 through the torsion spring 1243.

[0044] In this embodiment, two telescopic rods are provided, and the connection between them is achieved by rotating through a rotating shaft, so that a connecting rod combination can be formed, and two sets of torsion springs 1243 are also provided. The torsion spring 1243 is an elastic component that rotates in a rotational direction, so that the support rod or support plate 1231 can be unfolded more smoothly.

[0045] It can be understood that when the bracket is buckled from the extended position to the closed position and is engaged with the sliding member 121, the two sets of torsion springs 1243 store energy, and when the connecting shaft 31 is released after being collided, the two sets of torsion springs 1243 act to cause the two telescopic rods and the bracket to unfold and extend.

[0046] Preferably, combined Figure 1 and Figure 2 The number of elastic modules is also multiple groups, one group consists of two, and the two correspond to the two rotating rods 1232 respectively.

[0047] The shaft for installing the torsion spring 1243 can also directly adopt a torsion spring shaft or a torque hinge.

[0048] like Figure 4 The diagram shows the clamping mode between the support plate 1231 and the sliding member 121 .

[0049] In an embodiment of a fall-proof cushioning packaging box, mesh holes are provided on the support plate 1231 .

[0050] In an embodiment of a fall-proof cushioning packaging box, as Figure 3 The side panel mechanism 1 further includes a connecting pipe, an inner panel 13, a first honeycomb airbag 14 and a second honeycomb airbag 15. One side of the first honeycomb airbag 14 is bonded to the inner side of the side panel 11, and the other side is bonded to the inner panel 13. The side of the inner panel 13 facing away from the first honeycomb airbag 14 is bonded to the second honeycomb airbag 15. A vent hole 113 is provided on the side panel 11, and an air passage 131 is provided in the inner panel 13. The air inlet of the air passage 131 is connected to the vent hole 113 through the connecting pipe, and the air outlet of the air passage 131 is connected to each unit of the first honeycomb airbag 14 and the second honeycomb airbag 15.

[0051] In this embodiment, by installing the first honeycomb airbag 14 and the second honeycomb airbag 15 on both sides of the inner panel 13, they can be inflated to protect the internal objects, and by opening an airway 131 on the inner panel 13, the two honeycomb airbags can be inflated at the same time through the vent 113. Each honeycomb airbag has an independent small unit, and after all of them are inflated, the relative position of the inner panel 13 and the side panel 11 can be ensured.

[0052] It is understandable that after the inflation is completed, the vent hole 113 can be sealed by a plug.

[0053] Preferably, the flat plate 2 may also be provided with an inner plate 13, a first honeycomb airbag 14 and a second honeycomb airbag 15 as the side plate 11. Further preferably, the four side walls of the inner plate 13 are all inclined surfaces, and the inclined surfaces face away from the side plate 11 and the flat plate 2, so that the inclined side walls of the six inner plates 13 can abut against each other.

[0054] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0055] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A fall-proof cushioning packaging box, characterized in that: The packaging box includes four side panel mechanisms, two flat plate members, and a plurality of coupling assemblies for connecting the side panel mechanisms with the flat plate members, and the corners surrounding the box structure are all provided with notches; The side plate mechanism is provided with two first protrusions at two ends relative to the two flat pieces, and the side walls around each of the flat pieces are provided with two second protrusions that can extend into between the two first protrusions; a shaft coupling assembly includes two connecting shafts, each of the connecting shafts passes through one of the first protrusions and one of the second protrusions, one end of the connecting shaft is located in the notch, and the other end is located between the two second protrusions; the end of the connecting shaft away from the notch is detachably connected with a protrusion, and the protrusion has a first section and a second section whose radial size is larger than the first section; The side panel mechanism includes a side panel and two pop-up assemblies, and the two pop-up assemblies are arranged in a one-to-one correspondence with each of the connecting shaft assemblies. The pop-up assembly includes a sliding member, an elastic member, a bracket and an elastic module. The sliding member is slidably arranged on the side panel, one end of the sliding member abuts against the side walls of the two first sections, and the other end is connected to the elastic member, the end of the elastic member away from the sliding member is connected to the side panel, the bracket is rotatably connected to the connecting shaft, and the bracket has an expenditure position on the side of the connecting shaft assembly away from the internal space of the box body on its rotation path, and a closed position engaged with the sliding member, when the bracket is rotated from the expenditure position to the closed position, the elastic module can store energy, and the axial movement of the connecting shaft when being hit can cause the second section to squeeze the sliding member to move and release the engagement between the sliding member and the bracket.

2. The anti-falling cushioning packaging box according to claim 1, characterized in that: The packaging box also includes a plurality of expansion bags, which include a mounting frame, a puncture needle, a first box and a second box. The mounting frame is fixedly connected to the inner wall of the notch, the first box is accommodated in the second box and fixedly connected to the bottom of the second box, water is stored in the first box, and water-absorbing and expanding material is stored in the second box. The second box is fixedly connected to the mounting frame, and the puncture needle is fixedly connected to the mounting frame. The extension direction of the puncture needle points to the second box so that the second box and the first box can be punctured in sequence when impacted to cause the water-absorbing and expanding material to absorb water and expand.

3. The anti-falling cushioning packaging box according to claim 2, characterized in that: The distance between the end of the needle away from the second box and the second box is a first distance, and the distance between the end of the connecting shaft extending into the notch and the second box is a second distance, and the first distance is smaller than the second distance.

4. The anti-falling cushioning packaging box according to claim 1, characterized in that: Each of the brackets comprises a support rod and two rotating rods. Each of the rotating rods in one of the brackets is rotatably connected to each of the connecting shafts one by one. Both ends of the support rod are respectively connected to the ends of the rotating rod away from the connecting shaft.

5. The anti-falling cushioning packaging box according to claim 1, characterized in that: Each of the brackets comprises a support plate and two rotating rods. Each of the rotating rods in one of the brackets is rotatably connected to each of the connecting shafts one by one. Both ends of the support plate are respectively connected to the ends of the rotating rods away from the connecting shafts.

6. The anti-falling cushioning packaging box according to claim 5, characterized in that: A groove is provided on the surface of the side plate, the sliding member is slidably connected to the bottom of the groove, and the bracket is accommodated in the groove when located at the closed position.

7. The anti-falling cushioning packaging box according to claim 6, characterized in that: The elastic module includes a first telescopic rod, a second telescopic rod and two groups of torsion springs. The first telescopic rod is rotatably connected to the side wall of the groove, and the other end is rotatably connected to the second telescopic rod through the torsion spring. The end of the second telescopic rod away from the first telescopic rod is fixedly connected to the support plate, and the other side of the support plate away from the second telescopic rod is rotatably connected to the rotating rod through the torsion spring.

8. The anti-falling cushioning packaging box according to claim 6, characterized in that: The support plate is provided with mesh holes.

9. The anti-falling cushioning packaging box according to claim 1, characterized in that: The side panel mechanism further includes a connecting pipe, an inner panel, a first honeycomb airbag and a second honeycomb airbag, wherein one side of the first honeycomb airbag is bonded to the inner side of the side panel, and the other side is bonded to the inner panel, and the side of the inner panel facing away from the first honeycomb airbag is bonded to the second honeycomb airbag; The side panel is provided with an air vent, the inner panel is provided with an air passage, the air inlet of the air passage is connected with the air vent through a connecting pipe, and the air outlet of the air passage is connected with each unit on the first honeycomb airbag and the second honeycomb airbag.

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