Segmented shock absorbing sponge

Abstract

The utility model relates to the technical field of shock absorbing sponge, concretely is a sectional shock absorbing sponge, including multiple groups of sponge body, still include wedge butt joint strip, wedge butt joint groove, shock attenuation layer and buffer layer, and the top of arbitrary one group of sponge body is fixed with several groups of equidistance arrangement's wedge butt joint strip, butt joint locking structure, and the convenience and stability are given full play to, adapt to multi -scene assembly demand, and arbitrary two groups of sponge body realize preliminary positioning through wedge butt joint strip and wedge butt joint groove, need not help additional tool just can quick embedding, and the assembly efficiency is greatly promoted, especially adapt to batch production or on -the -spot quick splicing scene, simultaneously, the cross section of wedge butt joint strip is isosceles trapezoid, and with wedge butt joint groove inner wall completely sticks together, utilize the self -locking characteristic of trapezoidal structure, can obviously enhance the longitudinal anti -separation ability of two groups of sponge butt joint after, effectively avoid the problem that the butt joint place loosens, misplacement because of external force pulling during use, guarantee the stability of the overall structure after splicing.

Description

Technical Field

[0001] This utility model relates to the field of shock-absorbing sponge technology, specifically to a segmented shock-absorbing sponge. Background Technology

[0002] In many fields such as mattresses, sofas, office chairs, and equipment protective pads, shock-absorbing foam is a core component for achieving cushioning, shock absorption, improving user comfort, or protecting equipment. As the market continues to demand product customization, large-scale production, and comprehensive performance, traditional shock-absorbing foam has gradually exposed technical pain points that make it difficult to adapt to actual application scenarios.

[0003] Existing segmented damping foam has the following shortcomings: 1. Existing segmented shock-absorbing foams mostly adopt flat bonding or simple convex-concave interlocking methods. The former requires additional consumables such as glue, and cannot be disassembled and adjusted after bonding. Not only is the assembly efficiency low, but it is also difficult to meet the needs of mass production or rapid on-site splicing. Although the latter does not require additional tools, its convex-concave structure is mostly rectangular or square, without self-locking characteristics, and has weak longitudinal anti-separation ability. When subjected to external force during use, the joint is very easy to loosen and misalign, which seriously affects the overall performance and life of the product.

[0004] 2. The buffer layer of existing shock-absorbing foam is mostly a block structure with uniform density, which can only achieve buffering of a single force. It cannot reduce the force in a gradient according to the magnitude of the external force. The impact force will also be transmitted to the human body or the object in contact, causing problems such as pain and impact damage. It is difficult to meet the dual needs of internal structural protection and contact comfort. Utility Model Content

[0005] The purpose of this invention is to provide a segmented shock-absorbing sponge.

[0006] To achieve this objective, the present invention adopts the following technical solution: A segmented shock-absorbing sponge is provided, comprising multiple sets of sponge bodies, wedge-shaped connecting strips, wedge-shaped connecting grooves, a shock-absorbing layer, and a buffer layer. Each set of sponge bodies has several sets of equidistantly arranged wedge-shaped connecting strips fixed to its top, and each set of sponge bodies has a wedge-shaped connecting groove at its bottom that matches the wedge-shaped connecting strips. Two sets of flame-retardant layers are respectively bonded to the inner wall of the cavity within the sponge body. The shock-absorbing layer, the buffer layer, and the sound-absorbing layer are all located inside the sponge body. The flame-retardant layer, the shock-absorbing layer, the buffer layer, and the sound-absorbing layer are all tightly bonded together using a polymer adhesive to ensure a strong interlayer connection and prevent delamination during use.

[0007] Preferably, locking seats are fixed at both ends of the sponge body near the wedge-shaped docking groove. The locking seats have a concave disc structure. A rotating shaft is rotatably connected inside the locking seat. A flipping seat is connected to the outer end of the rotating shaft. A pull lug is movably connected in the flipping groove inside the flipping seat. A locking plate is fixed at the end of the rotating shaft away from the flipping seat. Locking grooves that match the locking plates are opened inside the two sets of docking sponge bodies. After the two sets of sponge bodies are initially connected in place by the wedge-shaped docking strip and the wedge-shaped docking groove, the locking grooves of the two sets of sponge bodies are docked and together form a fan-shaped locking cavity.

[0008] Preferably, the cross-section of the wedge-shaped connecting strip is an isosceles trapezoidal structure, and the top width of the wedge-shaped connecting strip is smaller than the bottom width. The inner wall of the wedge-shaped connecting groove is completely fitted with the outer wall of the wedge-shaped connecting strip. Through the self-locking characteristic of the trapezoidal structure, the longitudinal anti-separation ability of the two sets of sponge bodies after docking is enhanced, and the loosening of the docking point is prevented due to external force during use.

[0009] Preferably, the rotating shaft and the flip seat are connected by an interference fit to ensure that the flip seat and the rotating shaft rotate synchronously, avoid relative slippage, and ensure the accuracy of the rotation angle of the locking plate. The surface of the locking plate is provided with anti-slip texture. The locking plate fits against the inner wall of the locking groove through the anti-slip texture. The friction can prevent the locking plate from loosening due to external vibration after locking. The surface of the pull ear is covered with a silicone anti-slip sleeve. When the pull ear is stored inside the locking seat, the top of the pull ear is flush with the top of the locking seat, which not only avoids snagging on the external covering of the sponge body during use, but also ensures the flatness of the surface of the sponge body.

[0010] Preferably, the corrugated buffer protrusions of the buffer layer have a semi-circular cross-section. When subjected to external pressure, they can achieve graded buffering through the gradual deformation of the protrusions, avoiding the concentrated transmission of impact force. When subjected to external pressure, they can achieve initial buffering through compression, effectively absorbing slight impact force. The sound-absorbing layer has irregular honeycomb-shaped sound-absorbing holes inside, which are arranged in an alternating pattern. The porous structure reflects and absorbs sound waves multiple times, consuming sound energy.

[0011] Preferably, the damping layer includes two sets of plates, support seats, elastic balls and springs. The two sets of plates are respectively bonded to the opposite side of the flame-retardant layer and the buffer layer. Multiple sets of support seats are fixed in an equidistant array on the surface of one set of plates. The elastic balls are filled in the receiving grooves opened inside the support seats. The springs are arranged between the two sets of plates.

[0012] Preferably, the support base has a hexagonal honeycomb structure, which mainly bears the main load-bearing support. The hexagonal honeycomb structure has excellent structural stability and load-bearing capacity, which can effectively disperse external impact force, prevent local collapse of the sponge body, and improve the deformation resistance of the shock-absorbing layer. The main function of the elastic ball is to transmit the force to the shock-absorbing layer after the sponge is compressed by external force, and quickly restore the original shape through the deformation of the elastic ball, ensuring the long-term elasticity of the sponge. It can significantly improve the elastic recovery speed and recovery ability of the sponge, avoid permanent deformation, and prevent problems such as edge collapse and curling of the sponge during use.

[0013] Preferably, the spring is a cylindrical helical compression spring, which is installed inside the honeycomb unit of the support, and at least one set of springs is installed in each honeycomb unit. The two ends of the spring abut against the opposite side of the two sets of plates of the damping layer, and the fatigue resistance of the damping layer is improved through the synergistic effect of the spring and the elastic ball.

[0014] The beneficial effects of this utility model are: 1. This utility model discloses a segmented shock-absorbing sponge with a docking locking structure, which combines convenience and stability and is suitable for assembly needs in multiple scenarios. Any two sets of sponge bodies can be initially positioned by wedge-shaped docking strips and wedge-shaped docking grooves, and can be quickly fitted together without the need for additional tools, which greatly improves assembly efficiency. It is especially suitable for mass production or on-site rapid splicing scenarios. At the same time, the cross-section of the wedge-shaped docking strip is an isosceles trapezoid and is completely fitted with the inner wall of the wedge-shaped docking groove. Utilizing the self-locking characteristics of the trapezoidal structure, it can significantly enhance the longitudinal anti-separation ability of the two sets of sponges after docking, effectively avoiding the problem of loosening and misalignment at the docking point caused by external force during use, and ensuring the stability of the overall structure after splicing.

[0015] 2. This utility model provides a segmented shock-absorbing sponge with secondary locking reinforcement to cope with complex external force environments. After initial docking, a secondary reinforcement structure is formed by components such as locking seats, rotating shafts, and locking plates. This solves the problem that traditional segmented sponges are prone to loosening due to vibration when they are simply interlocked. The rotating shaft rotates precisely to drive the locking plate into the fan-shaped locking cavity formed by the docking of the two sets of sponges, avoiding locking failure due to relative slippage of components. The anti-slip texture on the surface of the locking plate fits tightly with the inner wall of the locking groove, using friction to resist external vibration and further enhance the locking effect. Even under long-term dynamic stress environment, the docking stability can be maintained.

[0016] 3. This utility model discloses a segmented shock-absorbing sponge with gradient force relief, protecting the internal structure and contact experience. The buffer layer is designed with semi-circular wave-shaped buffer protrusions as the core, realizing the buffering effect of force distribution and staged distribution. It not only improves the comfort when the human body or object comes into contact with it, but also provides protection for the internal shock-absorbing layer. When external force is applied, the buffer layer first absorbs the impact force. When the external force is small, it directly absorbs the impact force through its own compression, avoiding the impact force from being directly transmitted to the internal shock-absorbing layer, reducing the ineffective force loss of internal components, and extending the service life of the shock-absorbing layer. When the external force is large, the semi-circular wave-shaped protrusions gradually deform from the top to the bottom, dispersing the concentrated impact force into multiple smaller forces, realizing gradient force relief, and preventing the impact force from being concentrated and transmitted to the shock-absorbing layer, resulting in excessive local stress. This not only avoids the collapse of the support of the shock-absorbing layer and the excessive compression and deformation of the spring, but also makes the external force application more gradual, improving the comfort when the human body comes into contact with it.

[0017] 4. This utility model discloses a segmented shock-absorbing sponge that balances efficient shock absorption and rapid rebound in its shock-absorbing layer, achieving a balance between performance and service life. The hexagonal honeycomb support enhances support and distributes force, preventing the sponge body from collapsing or denting due to excessive local stress, thus improving its resistance to deformation. The honeycomb units can evenly distribute the received impact force in all directions, preventing external force from concentrating at a certain point or area, further protecting the internal elastic balls and springs, and reducing wear on local components. The springs and elastic balls work together to improve the shock absorption effect and fatigue resistance. The springs and elastic balls work together to achieve secondary shock absorption. When receiving the remaining impact force transmitted by the buffer layer, the springs absorb part of the impact force through compression deformation, while the elastic balls absorb the other part of the impact force through simultaneous compression deformation, converting the impact force into elastic potential energy. Compared with a single shock-absorbing component, the shock absorption effect is more significant, effectively weakening the impact of strong external forces on the sponge and the objects or people it contacts. At the same time, the synergistic effect of the springs and elastic balls can improve the fatigue resistance of the shock-absorbing layer, preventing the damping effect from decaying due to long-term repeated stress, and extending the overall service life of the sponge. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments of the present invention will be briefly described below.

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the structure of the sponge body and locking seat of this utility model; Figure 3 This is a schematic diagram of the structure of the locking seat and locking plate of this utility model; Figure 4 This is a cross-sectional view of the sponge body of this utility model; Figure 5 This is a cross-sectional view of the shock-absorbing layer of this utility model; In the diagram: 1. Sponge body; 2. Wedge-shaped connecting strip; 3. Wedge-shaped connecting groove; 4. Locking seat; 5. Rotating shaft; 6. Flip seat; 7. Pull lug; 8. Locking plate; 9. Locking groove; 10. Flame retardant layer; 11. Shock-absorbing layer; 12. Buffer layer; 13. Sound-absorbing layer; 14. Support seat; 15. Elastic ball; 16. Spring. Detailed Implementation

[0020] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0021] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product.

[0022] Reference Figures 1 to 5 The illustrated segmented damping sponge includes multiple sets of sponge bodies 1, wedge-shaped connecting strips 2, wedge-shaped connecting grooves 3, damping layers 11, and buffer layers 12. Several sets of equidistantly arranged wedge-shaped connecting strips 2 are fixed to the top of each set of sponge bodies 1, and wedge-shaped connecting grooves 3 adapted to the wedge-shaped connecting strips 2 are opened at the bottom of each set of sponge bodies 1. Two sets of flame-retardant layers 10 are respectively bonded to the inner wall of the cavity within the sponge body 1. The damping layer 11, the buffer layer 12, and the sound-absorbing layer 13 are all disposed inside the sponge body 1. All layers—flame-retardant layer 10, damping layer 11, buffer layer 12, and sound-absorbing layer 13—are interconnected. High-molecular-weight adhesives are used for tight bonding to ensure strong interlayer connections and prevent delamination during use. The sponge body 1 has an internal cavity with two sets of flame-retardant layers 10 bonded to the inner wall. Inside, a shock-absorbing layer 11, a buffer layer 12, and a sound-absorbing layer 13 are sequentially arranged. Each layer is tightly bonded with a high-molecular-weight adhesive to prevent delamination during use. The two sets of flame-retardant layers 10 are directly attached to the inner wall of the cavity of the sponge body 1, forming an internal and external protective barrier. When the sponge body 1 comes into contact with high temperature, open flame, or sparks, it can prevent the spread of flames through its own flame-retardant properties, while reducing the damage of high temperature to the internal shock-absorbing layer 11, buffer layer 12, and sound-absorbing layer 13, ensuring that the overall structure and protective function of the sponge do not fail.

[0023] Reference Figures 1 to 3Both ends of the sponge body 1 near the wedge-shaped docking groove 3 are fixed with locking seats 4. The locking seats 4 have a concave disc structure. A rotating shaft 5 is rotatably connected inside the locking seat 4. A flipping seat 6 is connected to the outer end of the rotating shaft 5. A pull lug 7 is movably connected in the flipping groove inside the flipping seat 6. A locking plate 8 is fixed at the end of the rotating shaft 5 away from the flipping seat 6. The interior of both sets of docking sponge bodies 1 is provided with locking grooves 9 that are adapted to the locking plates 8. When the two sets of sponge bodies 1 are initially connected in place by the wedge-shaped docking strip 2 and the wedge-shaped docking groove 3, the locking grooves 9 of the two sets of sponge bodies 1 are docked and together form a fan-shaped locking cavity. When the two sets of sponge bodies 1 are initially docked by the wedge-shaped docking strip 2 and the wedge-shaped docking groove 3... After positioning, the locking grooves 9 of the two sets of sponge bodies 1 near the docking end are simultaneously docked to form a fan-shaped locking cavity, providing space for subsequent reinforcement. By pulling the pull lug 7 inside the locking seat 4 of the sponge body 1, the surface of the pull lug 7 is covered with a silicone anti-slip sleeve to improve grip stability and drive the flip seat 6 to rotate. Since the flip seat 6 and the rotating shaft 5 are connected by an interference fit, the flip seat 6 will drive the rotating shaft 5 to rotate in the concave locking seat 4. The end of the rotating shaft 5 away from the flip seat 6 is fixed with a locking plate 8. When the rotating shaft 5 rotates, the locking plate 8 will rotate into the fan-shaped locking cavity. The anti-slip texture on the surface of the locking plate 8 is tightly attached to the inner wall of the locking groove 9, using friction to prevent the locking plate 8 from loosening due to external vibration after locking.

[0024] Reference Figure 1 The wedge-shaped connecting strip 2 has an isosceles trapezoidal cross-section, with the top width being smaller than the bottom width. The inner wall of the wedge-shaped connecting groove 3 is completely fitted with the outer wall of the wedge-shaped connecting strip 2. Through the self-locking characteristic of the trapezoidal structure, the longitudinal anti-separation ability of the two sets of sponge bodies 1 after docking is enhanced, preventing the docking point from loosening due to external force during use. When any two sets of sponge bodies 1 are docked, the wedge-shaped connecting groove 3 opened at the bottom of the upper sponge body 1 is aligned with the wedge-shaped connecting strip 2 fixed at the top of the lower sponge body 1 for initial positioning. Because the cross-section of the wedge-shaped connecting strip 2 is an isosceles trapezoid with a top width smaller than the bottom width, and the inner wall of the wedge-shaped connecting groove 3 is completely fitted with the outer wall of the wedge-shaped connecting strip 2, the self-locking characteristic of the trapezoidal structure can directly enhance the longitudinal anti-separation ability of the two sets of sponge bodies 1 after docking, preventing the docking point from loosening due to external force during use.

[0025] Reference Figures 2 to 3The rotating shaft 5 and the flip seat 6 are connected by an interference fit to ensure that the flip seat 6 and the rotating shaft 5 rotate synchronously, avoiding relative slippage and ensuring the accuracy of the rotation angle of the locking plate 8. The surface of the locking plate 8 is provided with anti-slip texture. The locking plate 8 fits against the inner wall of the locking groove 9 through the anti-slip texture. The friction can prevent the locking plate 8 from loosening due to external vibration after locking. The surface of the pull ear 7 is covered with a silicone anti-slip sleeve. When the pull ear 7 is stored inside the locking seat 4, the top of the pull ear 7 is flush with the top of the locking seat 4. This avoids snagging on the outer covering of the sponge body 1 during use and ensures the flatness of the surface of the sponge body 1. After locking, the pull ear 7 is stored in the flip groove of the flip seat 6 and inside the locking seat 4. At this time, the top of the pull ear 7 is flush with the top of the locking seat 4. This avoids snagging on the outer covering of the sponge body 1 during use and ensures the flatness of the surface of the sponge body 1, without affecting the subsequent user experience.

[0026] Reference Figure 4 The wave-shaped buffer protrusions of the buffer layer 12 have a semi-circular cross-section. When subjected to external pressure, they can achieve graded buffering through gradual deformation of the protrusions, avoiding concentrated transmission of impact force. They can also achieve initial buffering through compression when subjected to external pressure, effectively absorbing minor impact force. The sound-absorbing layer 13 has irregular honeycomb-shaped sound-absorbing holes arranged in a staggered pattern. This porous structure allows for multiple reflections and absorption of sound waves, dissipating sound energy. The surface of the buffer layer 12 has semi-circular wave-shaped buffer protrusions. When external force acts on the sponge body 1, the force is first transmitted to the buffer layer 12. When the external force is small, the buffer layer... 12 achieves initial buffering through self-compression, directly absorbing minor impact forces and preventing the impact forces from being directly transmitted to the internal structure. When the external force is large, the semi-circular wave-shaped protrusions of the buffer layer 12 gradually deform and compress sequentially from the top of the protrusion to the bottom, dispersing the concentrated impact force into multiple small forces, achieving gradient force relief, preventing the impact force from being concentrated and transmitted to the damping layer 11, and reducing the stress load on the internal structure. The sound-absorbing layer 13 has irregular honeycomb-shaped interlaced sound-absorbing holes. When external sound waves enter the sponge body 1, the sound waves enter the sound-absorbing layer 13 and are continuously reflected in the irregular honeycomb-shaped sound-absorbing holes, gradually consuming the sound energy.

[0027] Reference Figures 4 to 5The shock-absorbing layer 11 includes two sets of plates, support seats 14, elastic balls 15, and springs 16. The two sets of plates are respectively bonded to the opposite side of the flame-retardant layer 10 and the buffer layer 12. Multiple sets of support seats 14 are fixed in an equidistant array on the surface of one set of plates. The elastic balls 15 are filled in the receiving grooves opened inside the support seats 14. The springs 16 are placed between the two sets of plates. The shock-absorbing layer 11 is composed of two sets of plates, hexagonal honeycomb support seats 14, elastic balls 15, and cylindrical spiral compression springs 16. It bears the remaining impact force transmitted by the buffer layer 12 and ensures the elastic recovery of the sponge. The two sets of plates are respectively bonded to the flame-retardant layer 10 and the buffer layer 12. The support seats 14 are fixed in an equidistant array on the surface of one set of plates and have a hexagonal honeycomb structure. When the impact force is transmitted to the shock-absorbing layer 11, the support seats 14 first bear the main force and disperse the impact force to the surroundings through the honeycomb units to avoid excessive local stress on the sponge body 1, which would lead to collapse and improve the deformation resistance.

[0028] Reference Figure 5 The support seat 14 has a hexagonal honeycomb structure, which mainly bears the main force support. The hexagonal honeycomb structure has excellent structural stability and load-bearing capacity, which can effectively disperse external impact force, prevent local collapse of the sponge body 1, and improve the deformation resistance of the shock-absorbing layer 11. The main function of the elastic ball 15 is to transmit the force to the shock-absorbing layer 11 after the sponge is compressed by external force. The elastic ball 15 can quickly restore the original shape through deformation, ensuring the long-term elasticity of the sponge. It can significantly improve the elastic recovery speed and recovery ability of the sponge, avoid permanent deformation, and prevent problems such as edge collapse and curling of the sponge during use.

[0029] Reference Figure 5 Spring 16 is a cylindrical helical compression spring. Spring 16 is installed inside the honeycomb unit of support 14, and at least one set of spring 16 is installed in each honeycomb unit. The two ends of spring 16 abut against the opposite sides of the two sets of plates of damping layer 11. Through the synergistic effect of spring 16 and elastic ball 15, the fatigue resistance of damping layer 11 is improved. At least one set of spring 16 is installed in each honeycomb unit of support 14, and the two ends of spring 16 abut against the two sets of plates. At the same time, elastic ball 15 is filled in the receiving groove of the honeycomb unit. When impact force is applied, spring 16 is compressed. The spring 16 further absorbs the impact force, and the elastic ball 15 deforms under pressure. The two work together to convert the remaining impact force into elastic potential energy, achieving secondary shock absorption. At the same time, it improves the fatigue resistance of the shock-absorbing layer 11 and extends the service life of the sponge. After the external force disappears, the elastic ball 15 quickly returns to its original shape through its own deformation. At the same time, the spring 16 releases elastic potential energy and rebounds. The two work together to drive the support seat 14 and the two sets of plates to return to their original positions, thereby pushing the buffer layer 12 and the sponge body 1 to return to their original shape as a whole, avoiding permanent deformation of the sponge and preventing problems such as edge collapse and curling during use.

[0030] The shock-absorbing layer 11, buffer layer 12, sound-absorbing layer 13, and flame-retardant layer 10 are all tightly bonded together with a polymer adhesive, which solves the problem of delamination that is common in traditional multi-layered sponges due to weak connections. On the one hand, the layers are seamless and tightly connected, ensuring that external forces and sound waves can be transmitted in an orderly manner between the layers, avoiding the reduction of buffering, shock absorption, and sound absorption effects due to gaps between layers. On the other hand, even under long-term repeated pressure and vibration, the layers will not separate or fall off, maintaining the integrity of the overall sponge structure and preventing the failure of a certain layer due to delamination, further extending the product's service life and reducing maintenance and replacement costs.

Claims

1. A segmented shock-absorbing sponge, comprising multiple sets of sponge bodies (1), characterized in that: It also includes wedge-shaped docking strips (2), wedge-shaped docking grooves (3), shock-absorbing layer (11) and buffer layer (12). Several sets of wedge-shaped docking strips (2) are fixed at the top of any set of sponge bodies (1). A wedge-shaped docking groove (3) that matches the wedge-shaped docking strips (2) is opened at the bottom of any set of sponge bodies (1). Two sets of flame-retardant layers (10) are respectively bonded to the inner wall surface of the cavity opened inside the sponge body (1). The shock-absorbing layer (11) is set inside the sponge body (1). The buffer layer (12) is set inside the sponge body (1). The sound-absorbing layer (13) is set inside the sponge body (1). The flame-retardant layer (10), shock-absorbing layer (11), buffer layer (12) and sound-absorbing layer (13) are all tightly bonded with polymer adhesive to ensure that the interlayer connection is firm and to avoid delamination during use.

2. The segmented shock-absorbing sponge according to claim 1, characterized in that: The two ends of the sponge body (1) near the wedge-shaped docking groove (3) are fixed with locking seats (4). The locking seats (4) are concave disc-shaped structures. The locking seats (4) are rotatably connected to a rotating shaft (5). The outer end of the rotating shaft (5) is connected to a flipping seat (6). The flipping groove inside the flipping seat (6) is movably connected to a pull ear (7). The end of the rotating shaft (5) away from the flipping seat (6) is fixed with a locking plate (8). The interior of the two sets of docking sponge bodies (1) is provided with locking grooves (9) that are compatible with the locking plate (8). When the two sets of sponge bodies (1) are initially connected in place through the wedge-shaped docking strip (2) and the wedge-shaped docking groove (3), the locking grooves (9) of the two sets of sponge bodies (1) are docked and together form a fan-shaped locking cavity.

3. The segmented shock-absorbing sponge according to claim 1, characterized in that: The cross-section of the wedge-shaped docking strip (2) is an isosceles trapezoidal structure, and the top width of the wedge-shaped docking strip (2) is smaller than the bottom width. The inner wall of the wedge-shaped docking groove (3) is completely attached to the outer wall of the wedge-shaped docking strip (2). Through the self-locking characteristics of the trapezoidal structure, the longitudinal anti-separation ability of the two sets of sponge bodies (1) after docking is enhanced, and the docking point is prevented from loosening due to external force during use.

4. The segmented shock-absorbing sponge according to claim 2, characterized in that: The rotating shaft (5) and the flip seat (6) are connected by an interference fit to ensure that the flip seat (6) and the rotating shaft (5) rotate synchronously, avoid relative slippage, and ensure the accuracy of the rotation angle of the locking plate (8). The surface of the locking plate (8) is provided with anti-slip texture. The locking plate (8) fits against the inner wall of the locking groove (9) through the anti-slip texture. The friction can prevent the locking plate (8) from loosening due to external vibration after locking. The surface of the pull ear (7) is covered with a silicone anti-slip sleeve. When the pull ear (7) is stored inside the locking seat (4), the top of the pull ear (7) is flush with the top of the locking seat (4), which avoids snagging on the outer covering of the sponge body (1) during use and ensures the flatness of the surface of the sponge body (1).

5. The segmented shock-absorbing sponge according to claim 1, characterized in that: The wave-shaped buffer protrusion of the buffer layer (12) has a semi-circular cross section. When subjected to external pressure, it can achieve graded buffering through the gradual deformation of the protrusion, avoiding the concentrated transmission of impact force. When subjected to external pressure, it can achieve initial buffering through compression, effectively absorbing slight impact force. The sound-absorbing layer (13) has irregular honeycomb-shaped sound-absorbing holes inside. The sound-absorbing holes are arranged in an alternating pattern. The porous structure reflects and absorbs sound waves multiple times, consuming sound energy.

6. The segmented shock-absorbing sponge according to claim 1, characterized in that: The damping layer (11) includes two sets of plates, support seats (14), elastic balls (15) and springs (16). The two sets of plates are respectively bonded to the opposite side of the flame-retardant layer (10) and the buffer layer (12). Multiple sets of support seats (14) are fixed in an equidistant array on the surface of one set of plates. The elastic balls (15) are filled in the receiving grooves opened inside the support seats (14). The springs (16) are set between the two sets of plates.

7. A segmented shock-absorbing sponge according to claim 1, characterized in that: The support (14) has a hexagonal honeycomb structure and mainly bears the main force support. The hexagonal honeycomb structure has excellent structural stability and load-bearing capacity, which can effectively disperse external impact force, avoid local collapse of the sponge body, and improve the deformation resistance of the damping layer (11). The main function of the elastic ball (15) is to transmit the force to the damping layer (11) after the sponge is compressed by external force, and quickly restore the original shape through the deformation of the elastic ball (15).

8. The segmented shock-absorbing sponge according to claim 1, characterized in that: The spring (16) is a cylindrical helical compression spring. The spring (16) is set inside the honeycomb unit of the support (14), and at least one set of springs (16) is set in each honeycomb unit. The two ends of the spring (16) abut against the opposite side of the two sets of plates of the damping layer (11). Through the synergistic effect of the spring (16) and the elastic ball (15), the fatigue resistance of the damping layer (11) is improved.

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