Multi-dimensional damping protection packaging buffer device for vulnerable products

Abstract

The invention relates to the technical field of packaging, in particular to a multi-dimensional damping protective packaging buffer device for vulnerable products, which comprises a box body, a buffer frame is arranged in the box body, a multi-dimensional damping structure is arranged in the buffer frame, and a vulnerable product fixing assembly is arranged in the multi-dimensional damping structure. A vulnerable product body is arranged in the vulnerable product fixing assembly; the multi-dimensional damping structure comprises angular buffer blocks, the angular buffer blocks are located at the four corners of the inner wall of the box body respectively and matched with the corners of the buffer frame, a plurality of elastic ribs arranged in a crossed mode are arranged on the inner walls of the angular buffer blocks, and the sides, close to the buffer frame, of the elastic ribs are fixedly connected with the inner walls of the angular buffer blocks. The multi-dimensional damping protection packaging buffering device for the vulnerable products has the advantage that all-dimensional damping protection of the vulnerable products in a three-dimensional space is achieved through radial, axial and angular multi-dimensional damping.

Description

TECHNICAL FIELD

[0001] The present application relates to the packaging technical field, specifically to a multi-dimensional shock absorption protective packaging buffer device for fragile goods. BACKGROUND

[0002] It is known that packaging refers to the general name of containers, materials and auxiliary materials used according to certain technical methods to protect products in the flow process, facilitate storage and transportation, and promote sales. Some fragile goods (such as glassware, precision electronic components, and ceramic handicrafts) are prone to damage due to external impact, jolt and vibration during storage and transportation, resulting in economic losses, so it is necessary to use packaging buffer devices to protect fragile goods.

[0003] The existing fragile goods packaging buffer device mainly designs a shock absorption structure only for a single direction (such as the vertical direction), ignoring the horizontal and angular vibration and impact, while the fragile goods often bear multiple directions of force in actual transportation, resulting in poor protection effect. For example, some traditional foam packaging boxes can only buffer the vertical impact, and the horizontal jolt can easily cause the fragile goods to collide with the inner wall of the packaging box and be damaged. Moreover, a single buffer material (such as ordinary foam and bubble film) is used, which has weak absorption capacity for high-frequency vibration and is prone to permanent deformation after being extruded, and cannot be reused. SUMMARY

[0004] (I) Technical problems solved In view of the shortcomings of the prior art, the present application provides a multi-dimensional shock absorption protective packaging buffer device for fragile goods, which has the advantages of multi-dimensional shock absorption in radial, axial and angular directions, and realizes full-range shock absorption protection of fragile goods in three-dimensional space.

[0005] (II) Technical scheme The above technical purpose of the present application is realized by the following technical scheme: a multi-dimensional shock absorption protective packaging buffer device for fragile goods, comprising a box body, a buffer frame is arranged in the inside of the box body, a multi-dimensional shock absorption structure is arranged in the inside of the buffer frame, and a fragile goods fixing assembly is arranged in the inside of the multi-dimensional shock absorption structure, and a fragile goods body is arranged in the inside of the fragile goods fixing assembly. The multi-dimensional shock absorption structure comprises angular buffer blocks, the angular buffer blocks are respectively arranged at the four corners of the inner wall of the box body, and the angular buffer blocks are matched with the edge corners of the buffer frame, the inner wall of the angular buffer block is provided with a plurality of elastic ribs arranged in cross, and the side close to the buffer frame of the elastic rib is fixedly connected with the buffer frame, an axial shock absorption assembly is bolted in the inside of the buffer frame, a radial shock absorption assembly is arranged in the inside of the axial shock absorption assembly, and the inner side of the radial shock absorption assembly is in contact with the fragile goods body.

[0006] By adopting the technical scheme, the multidimensional shock absorption structure is arranged, the angular buffering, axial shock absorption and radial protection mechanisms are designed, the fragile goods are protected in all directions in three-dimensional space, the angular buffering block and the X-shaped elastic rib form the first edge and corner protection, the angular impact force during the falling or collision of the device can be directly absorbed, the corner damage of the fragile goods is avoided, the axial shock absorption assembly accurately buffers the vertical direction vibration, the up and down extrusion damage of the fragile goods is reduced, the radial shock absorption assembly surrounds the horizontal direction impact, the lateral displacement and collision of the fragile goods are prevented, the three form a three-dimensional shock absorption system, the impact energy absorption is more comprehensive, and the damage rate of the fragile goods is reduced.

[0007] The radial shock absorption assembly comprises a plurality of arc-shaped elastic air bags and a ring-shaped buffer cotton sleeve, the arc-shaped elastic air bags are uniformly distributed on the outer circumferential side of the fragile goods body, the concave surface of the arc-shaped elastic air bag faces the fragile goods body and is in contact with the fragile goods body, the ring-shaped buffer cotton sleeve is arranged on the outer side of the plurality of arc-shaped elastic air bags, and the outer wall of the ring-shaped buffer cotton sleeve is attached to the inner wall of the buffer frame, the inside of the arc-shaped elastic air bag is filled with inert gas, the concave surface of the arc-shaped elastic air bag is provided with a plurality of protruding elastic contacts, the elastic contacts are in contact with the outer wall of the fragile goods body, a plurality of grooves are formed in the inner side of the ring-shaped buffer cotton sleeve, and a micro spring is arranged in each groove.

[0008] By adopting the technical scheme, when the device is subjected to horizontal impact (such as vehicle turning and rolling), the fragile goods have a lateral displacement trend, first extruding the arc-shaped elastic air bag, the inert gas in the air bag is compressed to absorb part of the energy, at the same time, the micro spring is synchronously stretched and contracted to further buffer the impact force, part of the energy that is not absorbed is transmitted to the ring-shaped buffer cotton sleeve, the ring-shaped buffer cotton sleeve absorbs energy through its own deformation, and finally reduces the impact to the tolerance range of the fragile goods; the arc-shaped elastic air bag and the ring-shaped buffer cotton sleeve form a surrounding protection, any angle of horizontal impact can be absorbed, the lateral displacement and collision of the fragile goods are prevented, and the fragile goods are especially suitable for glass, ceramic and other fragile materials, the inert gas, the air bag and the elastic contact are all flexible contacts, rigid extrusion damage to the surface of the fragile goods is avoided, the air bag is compressed and deformed more uniformly, the impact force is dispersed more thoroughly, and local stress concentration is reduced.

[0009] The ring-shaped buffer cotton sleeve is made of open-cell polyurethane foam, and a plurality of holes are formed in the ring-shaped buffer cotton sleeve, and the holes are filled with elastic fiber bundles.

[0010] The technical scheme is adopted, the open-cell polyurethane foam is adopted for the annular buffer cotton cover, the elastic fiber bundle is filled in the internal annular hole, when the horizontal impact is transmitted to the annular buffer cotton cover, the foam hole first absorbs energy by compression deformation, and meanwhile the elastic fiber bundle in the hole is stretched or extruded, further consuming the remaining impact force, forming the secondary protection of foam buffering and fiber energy consumption.

[0011] The application is further provided that: the outer side of the annular buffer cotton cover is annularly bonded with a plurality of connecting sleeves, a plurality of connecting rods are penetrated through the inside of the connecting sleeves, and the top of the connecting rod is connected with the axial damping assembly, the top of the fragile product fixing assembly is bolted with a positioning sleeve, and the bottom of the connecting rod is inserted into the inside of the positioning sleeve.

[0012] The technical scheme is adopted, the open-cell polyurethane foam is adopted for the annular buffer cotton cover, the elastic fiber bundle is filled in the internal annular hole, when the horizontal impact is transmitted to the annular buffer cotton cover, the foam hole first absorbs energy by compression deformation, and meanwhile the elastic fiber bundle in the hole is stretched or extruded, further consuming the remaining impact force, forming the secondary protection of foam buffering and fiber energy consumption.

[0013] The application is further provided that: the axial damping assembly comprises an upper buffer seat, a lower buffer seat and axial damping springs, the upper buffer seat and the lower buffer seat are bolted to the inner side of the top and the inner side of the bottom of the buffer frame respectively, the opposite sides of the upper buffer seat and the lower buffer seat are both provided with flexible buffer pads, the top of the bottom flexible buffer pad is in contact with the fragile product body, the top flexible buffer pad is in contact with the fragile product fixing assembly, the axial damping springs are uniformly distributed in the inside of the upper buffer seat and the lower buffer seat, and the side of the axial damping spring close to the flexible buffer pad is bolted thereto, the outside of the axial damping spring is sleeved with an elastic sleeve, and both ends of the elastic sleeve are bolted with the upper buffer seat, the lower buffer seat and the flexible buffer pad respectively, an annular air damping cavity is arranged in the inside of the elastic sleeve, and an annular oil storage ring is arranged in the inside of the annular air damping cavity, the top and the bottom of the annular oil storage ring are both in contact with a T-shaped transmission piece, and the opposite sides of the two transmission pieces are connected with the inner wall of the annular air damping cavity.

[0014] The technical scheme is adopted, the axial damping assembly is arranged, when the device bears vertical jolt (such as when a vehicle drives through a speed bump), the easily-damaged product generates up-and-down moving tendency, first, the flexible buffer pad is extruded, the buffer pad transmits force to the axial damping spring, the axial damping spring and the elastic sleeve compress and absorb part of energy, simultaneously, the transmission piece formed in T shape extrudes the annular air damping cavity along with the elastic sleeve expansion and contraction, air in the cavity is compressed to form secondary buffering, and the oil liquid filled in the annular oil storage ring plays a damping effect, axial vibration can be reduced, through cooperation of the spring, oil liquid damping and the air damping cavity, compared with single spring buffering, the device is softer, high-frequency vertical vibration can be effectively absorbed, up-and-down extrusion damage of the easily-damaged product can be reduced, and the device is especially suitable for precision electronic components or thin-walled glass products.

[0015] The application is further provided as follows: the two ends of the elastic rib are fixedly connected with the inner wall of the angular buffer block and the buffer frame respectively, and the cross-arranged elastic ribs form an X-shaped support structure.

[0016] The technical scheme is adopted, the elastic rib is cross-arranged to connect the angular buffer block and the buffer frame, forming an X-shaped support structure, when the side angle of the device is impacted or falls (such as when one corner of the box body impacts the ground), the angular buffer block first contacts force, transmits the impact force to the X-shaped elastic rib, the elastic rib absorbs energy through tensile deformation, and simultaneously disperses the force to the buffer frame as a whole, so that the impact force is not concentrated on the side angle of the easily-damaged product.

[0017] The application is further provided as follows: the four corners of the inner wall of the box body are all bonded with positioning plates, and the outer shape of the positioning plate is adapted to the side angle of the angular buffer block, the surface of the angular buffer block is provided with a positioning block integrated with the angular buffer block, and the inner wall of the positioning plate is provided with a positioning groove, and the positioning groove is used in cooperation with the positioning block.

[0018] The technical scheme is adopted, the outer shape of the positioning plate at the four corners of the box body is adapted to the angular buffer block, the positioning block of the angular buffer block is embedded in the positioning groove of the positioning plate, when the angular buffer block is installed, the positioning block of the angular buffer block is aligned with the positioning groove and inserted, so that the angular buffer block can be quickly positioned, and additional adjustment is not needed, when the device bears angular impact, the positioning groove and the positioning block cooperate to limit the transverse displacement of the angular buffer block, so that the angular buffer block is always in the protection position of the four corners of the box body, and protection failure caused by angular buffer block offset is avoided.

[0019] The application is further provided with: the fragile product fixing assembly comprises a fixing seat, the fixing seat is bolted on the top of the bottom flexible buffer pad, the inside of the fixing seat is provided with a mounting hole matched with the use of the fragile product body, and the bottom of the fragile product body penetrates through the mounting hole and contacts the bottom flexible buffer pad, the two sides of the inside of the fixing seat are slidably provided with clamping plates, the side of the clamping plate close to the fragile product body is in close contact with the fragile product body, the elastic pressing spring is fixedly connected between the clamping plate and the inner wall of the fixing seat, the top of the fixing seat is provided with a protective cover plate, the protective cover plate is in contact with the top flexible buffer pad, the front side and the rear side of the bottom of the protective cover plate are connected with the tension rod through the bearing seat, the two sides of the top of the fixing seat are bolted with the screw sleeve, and the surface of the bottom end of the tension rod is provided with a thread, and the tension rod is screw-connected with the screw sleeve through the thread.

[0020] By adopting the above technical scheme, the bottom end of the fragile product body penetrates through the mounting hole of the fixing seat and contacts the bottom flexible buffer pad, the clamping plate in the fixing seat is clamped and attached to the outer wall of the fragile product in the direction of the fragile product under the action of the elastic pressing spring, the protective cover plate covers the top of the fragile product, the tension rod is screw-connected with the screw sleeve on the fixing seat, the height of the protective cover plate is adjusted by rotating the tension rod, the anti-skid cover plate is in close contact with the top of the fragile product, the clamping force of the clamping plate is maintained under the action of the spring during the transportation process, the protective cover plate is fixed through the tension rod, the fragile product has no displacement space in the up-down and left-right directions, the fragile product has no loosening or displacement risk during the transportation process, and the breakage probability is further reduced.

[0021] The application is further provided with: the side of the clamping plate close to the fragile product body is provided with an anti-skid buffer pad, and the inner side of the anti-skid buffer pad is provided with a plurality of anti-skid convex points.

[0022] By adopting the above technical scheme, the anti-skid buffer pad is pasted on the side of the clamping plate close to the fragile product, the anti-skid convex points on the inner side of the buffer pad directly contact the outer wall of the fragile product, when the fragile product has a displacement trend under the transverse vibration, the anti-skid convex points increase the friction force with the surface of the fragile product, prevent the fragile product from sliding relative to the clamping plate, and the flexible material of the buffer pad can absorb the slight vibration between the clamping plate and the fragile product, so that the surface damage of the fragile product caused by rigid contact is avoided.

[0023] The application is further provided with: the bottom of the protective cover plate is provided with a plurality of elastic pressing blocks, the elastic pressing blocks contact the top of the fragile product body, and the inside of the elastic pressing block is provided with a pressure relief cavity.

[0024] Using the above technical solution, the elastic pressure block at the bottom of the protective cover is aligned with the top of the vulnerable item. The tension rod is rotated to press the protective cover down, and the elastic pressure block contacts the surface of the vulnerable item and produces a slight deformation. The flexible material of the elastic pressure block conforms to the top contour of the vulnerable item through its own deformation. Even if the top of the vulnerable item is not flat, it can achieve close contact. At the same time, the pressure-reducing cavity inside the elastic pressure block can reduce local pressure and prevent the top of the vulnerable item from cracking due to excessive compression.

[0025] (III) Beneficial Effects Compared with the prior art, the present invention provides a multi-dimensional shock-absorbing and protective packaging cushioning device for fragile goods, which has the following beneficial effects: This multi-dimensional shock-absorbing protective packaging cushioning device for fragile items achieves all-round shock absorption and protection of fragile items in three-dimensional space through the design of a multi-dimensional shock-absorbing structure, including angular buffering, axial shock absorption, and radial protection. The angular buffer blocks and X-shaped elastic ribs form the first line of protection at the corners, which can directly absorb the angular impact force when the device is dropped or collided, preventing damage to the corners of fragile items. The axial shock absorption components accurately buffer vertical bumps and vibrations, reducing vertical squeezing damage to fragile items. The radial shock absorption components absorb horizontal impacts in a surrounding manner, preventing lateral displacement and collision of fragile items. The three components form a three-dimensional shock absorption system, which absorbs impact energy more comprehensively and reduces the breakage rate of fragile items. By incorporating a fragile item securing component, the clamping plate, under the action of a compression spring, can adapt to fragile items of different diameters, ensuring that the items are not loosened or shifted during transportation. The protective cover, through the engagement of a tension rod and a threaded sleeve, allows for adjustment of the clamping force according to the height of the fragile item. The design of the elastic pressure block and the pressure-reducing cavity not only secures the top of the fragile item with flexible pressure but also prevents excessive local pressure from damaging the fragile surface of the item. The overall structure is suitable for various sizes of cylindrical and near-cylindrical fragile items (such as glass jars and ceramic bottles), and has high stability after being secured, further reducing the probability of breakage. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram showing the connection of the buffer frame, multi-dimensional shock absorption structure, and vulnerable item fixing components in this invention; Figure 3 This is a schematic diagram of the multi-dimensional vibration reduction structure in this invention; Figure 4 This is a schematic diagram of the radial damping component structure in this invention; Figure 5 This is a schematic diagram of the axial damping component structure in this invention; Figure 6 This is a top view of the buffer frame and the angular buffer block in this invention; Figure 7This is a schematic diagram of the structure of the vulnerable item fixing component in this invention.

[0027] In the diagram: 1. Housing; 2. Buffer frame; 3. Multi-dimensional shock absorption structure; 31. Angular buffer block; 32. Elastic rib; 33. Axial shock absorption assembly; 331. Upper buffer seat; 332. Lower buffer seat; 333. Axial shock absorption spring; 334. Flexible buffer pad; 335. Elastic sleeve; 336. Annular oil reservoir ring; 337. Transmission component; 34. Radial shock absorption assembly; 341. Arc-shaped elastic airbag; 342. Annular buffer cotton sleeve; 343. Groove; 344. Miniature spring; 4. Vulnerable item fixing assembly; 41. Fixing seat; 42. Clamping plate; 43. Compression spring; 44. Protective cover plate; 45. Tensioning rod; 46. Screw sleeve; 5. Connecting sleeve; 6. Connecting rod; 7. Positioning sleeve; 8. Positioning plate; 9. Positioning block; 10. Positioning groove; 11. Elastic pressure block; 12. Pressure relief cavity. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Example 1 Please see Figures 1-6 A multi-dimensional shock-absorbing protective packaging cushioning device for fragile items includes a box body 1, a cushioning frame 2 is provided inside the box body 1, a multi-dimensional shock-absorbing structure 3 is provided inside the cushioning frame 2, and a fragile item fixing component 4 is provided inside the multi-dimensional shock-absorbing structure 3, and a fragile item body is provided inside the fragile item fixing component 4. The multi-dimensional shock absorption structure 3 includes corner buffer blocks 31, which are located at the four corners of the inner wall of the housing 1 and are adapted to the corners of the buffer frame 2. Multiple intersecting elastic ribs 32 are provided on the inner wall of the corner buffer blocks 31, and the side of the elastic ribs 32 closest to the buffer frame 2 is fixedly connected to them. An axial damping component 33 is bolted inside the buffer frame 2, and a radial damping component 34 is provided inside the axial damping component 33. The inner side of the radial damping component 34 contacts the vulnerable product body. By setting up the multi-dimensional shock absorption structure 3, the corner buffer blocks 31 effectively absorb shocks and prevent damage to the product. The design of the buffer, axial damping, and radial protection mechanism achieves all-round shock absorption and protection for vulnerable items in three-dimensional space. The corner buffer block 31 and the X-shaped elastic rib 32 form the first line of protection at the corners, which can directly absorb the angular impact force when the device falls or collides, avoiding damage to the corners of vulnerable items. The axial damping component 33 accurately buffers vertical bumps and vibrations, reducing vertical squeezing damage to vulnerable items. The radial damping component 34 absorbs horizontal impacts in a surrounding manner, preventing the vulnerable items from shifting and colliding laterally. The three components form a three-dimensional shock absorption system, which absorbs impact energy more comprehensively and reduces the breakage rate of vulnerable items.

[0030] The radial damping assembly 34 includes several arc-shaped elastic airbags 341 and an annular cushioning cotton sleeve 342. The arc-shaped elastic airbags 341 are evenly distributed on the outer periphery of the vulnerable item body, with their concave surfaces facing and contacting the vulnerable item body. The annular cushioning cotton sleeve 342 is fitted over the outer side of the arc-shaped elastic airbags 341, with its outer wall fitting against the inner wall of the buffer frame 2. The arc-shaped elastic airbags 341 are filled with inert gas, and their concave surfaces have several raised elastic contacts that contact the outer wall of the vulnerable item body. The inner side of the annular cushioning cotton sleeve 342 has several slots 343, and each slot 343 contains a miniature spring 344. The two ends of the miniature spring 344 are fixedly connected to the inner wall of the annular cushioning cotton sleeve 342 and the arc-shaped elastic airbags 341, respectively. The radial shock absorption component 34 is configured so that when the device is subjected to a horizontal impact (such as a vehicle turning and bumping), the vulnerable part tends to shift laterally. First, the arc-shaped elastic airbag 341 is compressed, and the inert gas inside the airbag absorbs part of the energy. At the same time, the micro spring 344 expands and contracts synchronously to further buffer the impact force. Some of the unabsorbed energy is transferred to the annular buffer cotton sleeve 342. The annular buffer cotton sleeve 342 dissipates energy through its own deformation, and finally reduces the impact to the range that the vulnerable part can withstand. The arc-shaped elastic airbag 341 and the annular buffer cotton sleeve 342 form a surrounding protection, and impacts at any angle in the horizontal direction can be absorbed to prevent the vulnerable part from shifting and colliding laterally. It is especially suitable for fragile materials such as glass and ceramics. Moreover, the inert gas, airbag and elastic contact are all in flexible contact to avoid rigid compression damage to the surface of the vulnerable part. At the same time, the airbag compression deformation is more uniform, the impact force is more thoroughly dispersed, and local stress concentration is reduced.

[0031] The annular cushioning cotton sleeve 342 is made of open-cell polyurethane foam, and the interior of the annular cushioning cotton sleeve 342 has several holes in a ring shape. The holes are filled with elastic fiber bundles. Because the annular cushioning cotton sleeve 342 is made of open-cell polyurethane foam and the internal annular holes are filled with elastic fiber bundles, when a horizontal impact is transmitted to the annular cushioning cotton sleeve 342, the foam holes first absorb energy through compression deformation. At the same time, the elastic fiber bundles in the holes are stretched or squeezed to further consume the remaining impact force, forming a secondary protection of foam cushioning plus fiber energy consumption.

[0032] The annular cushioning cotton sleeve 342 has several connecting sleeves 5 bonded to its outer side in a ring shape. Several connecting rods 6 pass through the inside of the connecting sleeves 5, and the top of the connecting rods 6 is connected to the axial damping component 33. The top of the vulnerable item fixing component 4 is bolted with a positioning sleeve 7, and the bottom of the connecting rods 6 is inserted into the positioning sleeve 7. Through the cooperation between the connecting sleeves 5 on the outer side of the annular cushioning cotton sleeve 342 and the connecting rods 6, the top of the connecting rods 6 is fixed to the bottom of the upper buffer seat 331, and the bottom is inserted into the positioning sleeve 7 on the vulnerable item fixing component 4. When the device is subjected to a combined impact (such as simultaneously bearing horizontal and vertical vibration), the connecting rods 6 can synchronously transmit axial and radial damping forces, so that the radial damping component 34 and the axial damping component 33 form a linkage. During axial vibration, the connecting rods 6 move up and down with the axial damping component 33, driving the annular cushioning cotton sleeve 342 to adjust synchronously, avoiding misalignment between the radial component and the axial component. During horizontal impact, the connecting rods 6 limit the excessive displacement of the annular cushioning cotton sleeve 342, ensuring more stable radial cushioning.

[0033] The axial damping assembly 33 includes an upper buffer seat 331, a lower buffer seat 332, and an axial damping spring 333. The upper buffer seat 331 and the lower buffer seat 332 are respectively bolted to the inner sides of the top and bottom of the buffer frame 2. Flexible buffer pads 334 are provided on opposite sides of the upper buffer seat 331 and the lower buffer seat 332. The top of the bottom flexible buffer pad 334 contacts the vulnerable item body, and the top flexible buffer pad 334 contacts the vulnerable item fixing assembly 4. The axial damping springs 333 are evenly distributed inside the upper buffer seat 331 and the lower buffer seat 332, and the side of the axial damping spring 333 closest to the flexible buffer pad 334 is bolted to it. An elastic sleeve 335 is sleeved on the outer side of the axial damping spring 333, and both ends of the elastic sleeve 335 are respectively bolted to the upper buffer seat 331, the lower buffer seat 332, and the flexible buffer pad 334. An annular air damping cavity is formed inside the elastic sleeve 335, and an annular air damping cavity is provided inside the annular air damping cavity. The oil reservoir ring 336 has T-shaped transmission members 337 at both its top and bottom. The opposite sides of the two transmission members 337 are connected to the inner wall of the annular air damping chamber. By setting the axial damping component 33, when the device is subjected to vertical bumps (such as a vehicle driving over a speed bump), the vulnerable items tend to move up and down. First, the flexible buffer pad 334 is squeezed, and the buffer pad transmits the force to the axial damping spring 333. The axial damping spring 333 and the elastic sleeve 335 compress and absorb part of the energy. At the same time, the T-shaped transmission members 337 expand and contract with the elastic sleeve 335 to squeeze the annular air damping chamber. The air in the chamber is compressed to form a secondary buffer. In addition, the oil filled in the annular oil reservoir ring 336 has a damping effect to reduce axial vibration. Through the cooperation of the spring, oil damping and air damping chamber, it is gentler than the single spring buffer and can effectively absorb high-frequency vertical vibration, reduce the damage of vulnerable items by up and down squeezing. It is especially suitable for precision electronic components or thin-walled glass products.

[0034] The two ends of the elastic ribs 32 are fixedly connected to the inner wall of the corner buffer block 31 and the buffer frame 2, respectively. The cross-arranged elastic ribs 32 form an X-shaped support structure. The corner buffer block 31 and the buffer frame 2 are connected by the cross-arranged elastic ribs 32 to form an X-shaped support structure. When the corner of the device is hit or dropped (such as when a corner of the box 1 hits the ground), the corner buffer block 31 is the first to be in contact with the force and transmits the impact force to the X-shaped elastic ribs 32. The elastic ribs 32 absorb energy through stretching and deformation, and at the same time disperse the force to the entire buffer frame 2, so as to avoid the impact force being concentrated on the corner of the vulnerable product.

[0035] Positioning plates 8 are bonded to the four corners of the inner wall of the housing 1. The shape of the positioning plates 8 is adapted to the corners of the corner buffer block 31. The surface of the corner buffer block 31 is provided with a positioning block 9 integrated with it. The inner wall of the positioning plate 8 is provided with a positioning groove 10, and the positioning groove 10 works in conjunction with the positioning block 9. By matching the shape of the positioning plates 8 at the four corners of the housing 1 with the corner buffer block 31, the positioning block 9 of the corner buffer block 31 is embedded in the positioning groove 10 of the positioning plate 8. During installation, the positioning block 9 of the corner buffer block 31 is aligned with the positioning groove 10 and inserted to complete the quick positioning of the corner buffer block 31 without additional adjustment. When the device is subjected to angular impact, the positioning groove 10 and the positioning block 9 work together to limit the lateral displacement of the corner buffer block 31, ensuring that the corner buffer block 31 is always in the protective position at the four corners of the housing 1, and avoiding the failure of protection due to the displacement of the corner buffer block 31.

[0036] The working principle of this embodiment is as follows: Through the combined use of positioning block 9 and positioning groove 10, the buffer frame 2, multi-dimensional shock absorption structure 3, and the fragile item body are installed into the box 1. When the device is subjected to corner impact (such as a corner of box 1 falling to the ground) or lateral compression, the corner buffer block 31 first comes into contact with the external force and absorbs the initial impact energy through its own deformation. The unabsorbed energy is transferred to the X-shaped elastic rib 32. The elastic rib 32 is stretched and undergoes elastic deformation, dispersing the concentrated corner impact force to the entire buffer frame 2, thus avoiding impact. The force acts directly on the sharp edges of vulnerable items. When the device experiences vertical bumps (such as a vehicle driving over a speed bump or being crushed by stacked goods in a warehouse), the vulnerable items tend to move up and down. First, the flexible buffer pad 334 at the top or bottom is compressed. The buffer pad absorbs small vibrations through its own deformation. If the vibration amplitude is large, the force is transmitted to the axial damping spring 333. The damping spring 333 and the elastic sleeve 335 compress and deform to absorb most of the energy. Simultaneously, the transmission component 337 extends and retracts with the spring, compressing the annular air damping chamber. The air inside the chamber is compressed, forming a secondary buffer. The oil in the oil reservoir ring 336 slows down the movement speed of the transmission component 337 through damping, avoiding secondary impact caused by excessive spring rebound. The flexible buffer pad 334 maintains close contact with the vulnerable item, continuously providing vertical protection. When the device is subjected to a horizontal impact (such as centrifugal force during vehicle turning or lateral collision during handling), the vulnerable item tends to shift laterally. First, it compresses the arc-shaped elastic airbag 341, compressing the inert gas inside the airbag and absorbing the initial impact energy through gas damping. At the same time, the elastic contacts on the surface of the airbag adapt to the surface contour of the vulnerable item, avoiding excessive local pressure. The unabsorbed energy is transferred to the micro spring 344, which further buffers the impact force through extension and contraction. The remaining energy is transferred to the annular buffer cotton sleeve 342. The open-cell foam and elastic fiber bundles inside the annular buffer cotton sleeve 342 dissipate energy through compression and stretching deformation, achieving three-stage buffering. If the impact is accompanied by vertical vibration, the connecting rod 6 moves up and down synchronously with the axial damping component 33, driving the annular buffer cotton sleeve 342 and the airbag to adjust in coordination, avoiding protection failure caused by radial and axial structural misalignment.

[0037] Example 2 refer to Figure 7A multi-dimensional shock-absorbing protective packaging cushioning device for fragile items also includes a fragile item fixing component 4. The fragile item fixing component 4 includes a fixing seat 41, which is bolted to the top of a bottom flexible cushioning pad 334. The fixing seat 41 has an internal mounting hole for use with the fragile item body, and the bottom of the fragile item body passes through the mounting hole and contacts the bottom flexible cushioning pad 334. Clamping plates 42 are slidably arranged on both sides inside the fixing seat 41, with the clamping plate 42 in close contact with the fragile item body. A compression spring 43 is fixedly connected between the clamping plate 42 and the inner wall of the fixing seat 41. A protective cover plate 44 is provided on the top of the fixing seat 41, and the protective cover plate 44 contacts the top flexible cushioning pad 334. A tensioning rod 45 is connected to the front and rear sides of the bottom of the protective cover plate 44 via bearing seats. Screw sleeves 46 are bolted to both sides of the top of the fixing seat 41 for tensioning. The bottom surface of the rod 45 is threaded, and the tension rod 45 is threadedly connected to the screw sleeve 46. By setting the vulnerable item fixing component 4, the bottom end of the vulnerable item body passes through the mounting hole of the fixing seat 41 and contacts the bottom flexible buffer pad 334. The clamping plate 42 in the fixing seat 41 is clamped towards the vulnerable item and fits against the outer wall of the vulnerable item under the action of the compression spring 43. Then, the protective cover plate 44 covers the top of the vulnerable item, so that the tension rod 45 is threadedly connected to the screw sleeve 46 on the fixing seat 41. Rotating the tension rod 45 can adjust the height of the protective cover plate 44, so that the anti-slip cover plate is in close contact with the top of the vulnerable item. During transportation, the clamping plate 42 always maintains the clamping force under the action of the spring. The protective cover plate 44 is fixed by the tension rod 45, so that the vulnerable item has no room for displacement in the up, down, left and right directions, so that the vulnerable item has no risk of loosening or displacement during transportation, and further reduces the probability of damage.

[0038] The clamping plate 42 has an anti-slip buffer pad on the side near the vulnerable item body, and several anti-slip protrusions on the inner side of the anti-slip buffer pad. The anti-slip buffer pad is attached to the side of the clamping plate 42 near the vulnerable item, and the anti-slip protrusions on the inner side of the buffer pad directly contact the outer wall of the vulnerable item. When the vulnerable item is subjected to lateral vibration and tends to shift, the anti-slip protrusions increase the friction with the surface of the vulnerable item, preventing the vulnerable item from sliding relative to the clamping plate 42. At the same time, the flexible material of the buffer pad can absorb the small vibrations between the clamping plate 42 and the vulnerable item, avoiding damage to the surface of the vulnerable item caused by rigid contact.

[0039] The protective cover 44 has several elastic pressure blocks 11 at its bottom. The elastic pressure blocks 11 are in contact with the top of the vulnerable item body, and the elastic pressure blocks 11 have a pressure-reducing cavity 12 inside. By aligning the elastic pressure blocks 11 at the bottom of the protective cover 44 with the top of the vulnerable item, rotating the tension rod 45 causes the protective cover 44 to press down. The elastic pressure blocks 11 come into contact with the surface of the vulnerable item and undergo slight deformation. The flexible material of the elastic pressure blocks 11 conforms to the top contour of the vulnerable item through its own deformation. Even if the top of the vulnerable item is not flat, it can still achieve close contact. At the same time, the pressure-reducing cavity 12 inside the elastic pressure blocks 11 can reduce local pressure and prevent the top of the vulnerable item from cracking due to excessive compression.

[0040] The working principle of this embodiment is as follows: The fixing base 41 is pre-attached to the top of the bottom flexible buffer pad 334. The bottom of the vulnerable product body is aligned with the mounting hole of the fixing base 41, and it is slowly lowered until the bottom of the vulnerable product contacts the bottom flexible buffer pad 334, completing the initial positioning. During the lowering process, the outer wall of the vulnerable product presses against the clamping plates 42 on both sides. The clamping plates 42 slide towards the inner wall of the fixing base 41 and compress the pressure spring 43. The pressure spring 43 generates a reverse elastic force, pushing the clamping plate 42 to tightly fit against the outer wall of the vulnerable product. Meanwhile, the anti-slip protrusions of the anti-slip buffer pad contact the surface of the vulnerable product, increasing the coefficient of friction and preventing the vulnerable product from sliding laterally. At this time, the bottom of the vulnerable product is supported by the flexible buffer pad 334, and the sides are elastically clamped by the clamping plates 42, achieving initial fixation in the horizontal and vertical directions. Then, the protective cover plate 44 is placed on top of the vulnerable product to ensure that the cover... The elastic pressure block 11 at the bottom of the cover is aligned with the center area of ​​the top of the vulnerable item. The position of the cover is adjusted so that the tension rods 45 on the front and rear sides of the bottom are aligned with the screw sleeves 46 on both sides of the top of the fixed base 41. By rotating the tension rods 45, the threads on the surface of the rods cooperate with the screw sleeves 46 to drive the protective cover 44 to press down slowly. During the pressing process, the elastic pressure block 11 gradually contacts the top of the vulnerable item and produces a slight deformation. It fits the top contour of the vulnerable item through flexible deformation. Then, the tension rods 45 are rotated until the elastic pressure block 11 produces a suitable clamping force (preferably so that the vulnerable item does not loosen). At this time, the bottom of the protective cover 44 contacts the top flexible buffer pad 334, forming a double protection of top flexible buffer and clamping fixation, ensuring that the vulnerable item has no room to move up, down, left, or right, so that the vulnerable item has no risk of loosening or shifting during transportation.

[0041] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. Those skilled in the art can make modifications to this embodiment without contributing any inventive step after reading this specification. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-dimensional shock-absorbing and protective packaging cushioning device for fragile goods, comprising a box body (1), characterized in that: The box (1) is provided with a buffer frame (2) inside, the buffer frame (2) is provided with a multi-dimensional shock absorption structure (3) inside, and the multi-dimensional shock absorption structure (3) is provided with a fragile item fixing component (4) inside, and the fragile item fixing component (4) is provided with a fragile item body inside. The multi-dimensional shock absorption structure (3) includes corner buffer blocks (31), which are located at the four corners of the inner wall of the box (1) and are adapted to the corners of the buffer frame (2). The inner wall of the corner buffer block (31) is provided with multiple elastic ribs (32) arranged in a cross pattern, and the elastic ribs (32) are fixedly connected to the side of the buffer frame (2) near it. An axial shock absorption assembly (33) is bolted inside the buffer frame (2), and a radial shock absorption assembly (34) is provided inside the axial shock absorption assembly (33), and the inner side of the radial shock absorption assembly (34) is in contact with the fragile product body.

2. The multi-dimensional shock-absorbing and protective packaging cushioning device for fragile goods according to claim 1, characterized in that: The radial damping assembly (34) includes several arc-shaped elastic airbags (341) and an annular cushioning sleeve (342). The arc-shaped elastic airbags (341) are evenly distributed on the outer periphery of the vulnerable product body, and the concave surface of the arc-shaped elastic airbags (341) faces and contacts the vulnerable product body. The annular cushioning sleeve (342) is sleeved on the outside of the several arc-shaped elastic airbags (341), and the outer wall of the annular cushioning sleeve (342) fits against the inner wall of the cushioning frame (2). The airbag (341) is filled with inert gas. The concave surface of the arc-shaped elastic airbag (341) is provided with several raised elastic contacts, and the elastic contacts are in contact with the outer wall of the fragile item body. The inner side of the annular cushioning cotton sleeve (342) is provided with several slots (343), and the slots (343) are provided with miniature springs (344). The two ends of the miniature springs (344) are fixedly connected to the inner wall of the annular cushioning cotton sleeve (342) and the arc-shaped elastic airbag (341), respectively.

3. A multi-dimensional shock-absorbing and protective packaging cushioning device for fragile goods according to claim 2, characterized in that: The annular cushioning cotton sleeve (342) is made of open-cell polyurethane foam, and the interior of the annular cushioning cotton sleeve (342) has several holes in a ring shape, and the holes are filled with elastic fiber bundles.

4. A multi-dimensional shock-absorbing and protective packaging cushioning device for fragile goods according to claim 2, characterized in that: The outer side of the annular cushioning cotton sleeve (342) is bonded with several connecting sleeves (5) in an annular shape. Several connecting rods (6) pass through the inside of the connecting sleeves (5). The top of the connecting rods (6) is connected to the axial damping component (33). The top of the vulnerable item fixing component (4) is bolted with a positioning sleeve (7), and the bottom of the connecting rods (6) is inserted into the inside of the positioning sleeve (7).

5. A multi-dimensional shock-absorbing and protective packaging cushioning device for fragile goods according to claim 1, characterized in that: The axial damping assembly (33) includes an upper buffer seat (331), a lower buffer seat (332), and axial damping springs (333). The upper buffer seat (331) and the lower buffer seat (332) are respectively bolted to the inner side of the top and the inner side of the bottom of the buffer frame (2). Flexible buffer pads (334) are provided on opposite sides of the upper buffer seat (331) and the lower buffer seat (332). The top of the bottom flexible buffer pad (334) contacts the vulnerable item body, and the top flexible buffer pad (334) contacts the vulnerable item fixing assembly (4). The axial damping springs (333) are evenly distributed inside the upper buffer seat (331) and the lower buffer seat (332). An axial damping spring (333) is bolted to the side of the flexible buffer pad (334). An elastic sleeve (335) is sleeved on the outside of the axial damping spring (333), and the two ends of the elastic sleeve (335) are bolted to the upper buffer seat (331), the lower buffer seat (332), and the flexible buffer pad (334), respectively. An annular air damping cavity is opened inside the elastic sleeve (335), and an annular oil reservoir ring (336) is provided inside the annular air damping cavity. The top and bottom of the annular oil reservoir ring (336) are in contact with a T-shaped transmission member (337), and the opposite sides of the two transmission members (337) are connected to the inner wall of the annular air damping cavity.

6. A multi-dimensional shock-absorbing and protective packaging cushioning device for fragile goods according to claim 1, characterized in that: The two ends of the elastic ribs (32) are fixedly connected to the inner wall of the angular buffer block (31) and the buffer frame (2), respectively, and the cross-arranged elastic ribs (32) form an X-shaped support structure.

7. A multi-dimensional shock-absorbing and protective packaging cushioning device for fragile goods according to claim 1, characterized in that: Positioning plates (8) are glued to the four corners of the inner wall of the box (1), and the shape of the positioning plates (8) is adapted to the corners of the corner buffer block (31). The surface of the corner buffer block (31) is provided with a positioning block (9) integrated with it. The inner wall of the positioning plate (8) is provided with a positioning groove (10), and the positioning groove (10) and the positioning block (9) are used together.

8. A multi-dimensional shock-absorbing and protective packaging cushioning device for fragile goods according to claim 5, characterized in that: The fragile item fixing assembly (4) includes a fixing base (41), which is bolted to the top of the bottom flexible buffer pad (334). The fixing base (41) has an installation hole inside that is used to fit the fragile item body, and the bottom of the fragile item body passes through the installation hole and contacts the bottom flexible buffer pad (334). Clamping plates (42) are slidably arranged on both sides inside the fixing base (41). The clamping plates (42) are in close contact with the side of the fragile item body that is close to it. The clamping plates (42) are fixed to the fixing base. A pressure spring (43) is fixedly connected between the inner walls of the seat (41). A protective cover plate (44) is provided on the top of the fixed seat (41), and the protective cover plate (44) is in contact with the top flexible buffer pad (334). The front and rear sides of the bottom of the protective cover plate (44) are connected to a tension rod (45) through a bearing seat. Threaded sleeves (46) are bolted to both sides of the top of the fixed seat (41). The bottom surface of the tension rod (45) is threaded, and the tension rod (45) is threaded to the threaded sleeve (46).

9. A multi-dimensional shock-absorbing and protective packaging cushioning device for fragile goods according to claim 8, characterized in that: The clamping plate (42) has an anti-slip buffer pad on the side near the fragile item body, and the inner side of the anti-slip buffer pad has several anti-slip protrusions.

10. A multi-dimensional shock-absorbing and protective packaging cushioning device for fragile goods according to claim 8, characterized in that: The bottom of the protective cover (44) is provided with several elastic pressure blocks (11), the elastic pressure blocks (11) are in contact with the top of the fragile item body, and the interior of the elastic pressure blocks (11) is provided with a pressure-reducing cavity (12).

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