A thermal insulation sandwich structure of a non-slip thermal insulation shock absorbing pad

Abstract

The utility model provides a kind of heat insulation interlayer structure of antiskid heat insulation damping pad, belong to antiskid damping technical field, the heat insulation interlayer structure of this antiskid heat insulation damping pad includes upper layer board body, lower layer board body and the heat insulation layer being set between upper layer board body and lower layer board body, heat insulation layer is made of multiple heat insulation units, each heat insulation unit is honeycomb structure, the lower surface of upper layer board body is equipped with several first protruding structures, the upper surface of lower layer board body is equipped with several second protruding structures, first protruding structure and second protruding structure are mutually staggered arrangement in vertical direction, the wall surface of honeycomb structure of heat insulation layer and first protruding structure and second protruding structure form multiple-point contact connection;The utility model can solve the problem that heat insulation damping pad is in the use process, the heat conduction efficiency is too high due to the contact area between heat insulation layer and upper and lower surface board body being too large at the same time when being subjected to load, heat insulation layer and board body are prone to relative slip between, leading to performance attenuation.

Description

Technical Field

[0001] This utility model belongs to the field of anti-slip and shock absorption technology, specifically, it relates to a heat insulation sandwich structure of an anti-slip, heat-insulating, and shock-absorbing pad. Background Technology

[0002] In industrial production and daily life, heat-insulating and shock-absorbing pads are widely used in the bases of mechanical equipment, supports for household appliances, mats for hot food trays in the catering industry, and various occasions requiring heat insulation, anti-scalding, shock absorption, and anti-slip properties. Traditional heat-insulating and shock-absorbing pads are usually made of a single foam or rubber material. Although these pads have a certain degree of heat insulation and shock absorption, the large planar contact area between the material and the upper and lower surfaces allows heat to be quickly conducted through the large contact area, resulting in unsatisfactory heat insulation performance. Existing technologies also include some solutions that incorporate an insulation layer inside the pad. These solutions typically sandwich the insulation layer between two layers of boards and bond it over the entire surface with adhesive. However, this bonding method creates a continuous heat conduction path between the insulation layer and the boards. Furthermore, when the pad is subjected to impact or long-term load, stress concentration at the large bonding interface can lead to delamination, causing slippage between the insulation layer and the boards, resulting in a significant decrease in the pad's shock absorption performance or even complete failure. Other technical solutions attempt to enhance structural strength by incorporating vertical support columns within the insulation layer. However, these columns also become bridges for heat conduction, ultimately weakening the insulation effect. In practical use, users have also found that traditional insulation mats easily lose their anti-slip properties in humid environments, causing items placed on them to slip and creating safety hazards. Existing solutions mainly involve increasing the mat's thickness or using materials with lower thermal conductivity. However, increasing the thickness makes the mat bulky and inconvenient to use and store, while special materials with low thermal conductivity are often expensive and difficult to process. Therefore, the market urgently needs a heat-insulating and shock-absorbing mat structure that can maintain a lightweight and portable design while simultaneously providing excellent insulation performance, reliable shock absorption, and good anti-slip properties. Utility Model Content

[0003] In view of this, the present invention provides a heat insulation sandwich structure for an anti-slip, heat-insulating, and shock-absorbing pad, which can solve the problem that the heat insulation and shock-absorbing pad has excessively high heat conduction efficiency due to the large contact area between the heat insulation layer and the upper and lower surface plates during use, and that the heat insulation layer and the plate are prone to relative slippage under load, resulting in performance degradation.

[0004] This utility model is implemented as follows:

[0005] This utility model provides a heat-insulating sandwich structure for an anti-slip, heat-insulating, and shock-absorbing pad, including an upper plate, a lower plate, and a heat-insulating layer disposed between the upper and lower plates. The heat-insulating layer is composed of multiple heat-insulating units, each heat-insulating unit having a honeycomb structure. The lower surface of the upper plate has several first protrusions, and the upper surface of the lower plate has several second protrusions. The first and second protrusions are staggered in the vertical direction. The wall surface of the honeycomb structure of the heat-insulating layer forms a multi-point contact connection with the first and second protrusions. The contact area between the top surface of the first protrusion and the heat-insulating layer is smaller than the connection area between the bottom surface of the first protrusion and the upper plate.

[0006] The technical effects of the heat insulation sandwich structure of the anti-slip, heat insulation, and shock-absorbing pad provided by this utility model are as follows: By setting a first protrusion structure and a second protrusion structure on the lower surface of the upper plate and the upper surface of the lower plate respectively, and arranging them staggered in the vertical direction, a multi-point contact connection with the honeycomb structure of the heat insulation layer is formed. This structural design effectively blocks the heat conduction path. At the same time, the frustum design of the top area of ​​the first protrusion structure is smaller than the bottom area, which reduces the contact area with the heat insulation layer and further reduces the heat conduction efficiency. When subjected to pressure, the protrusion structure can generate elastic deformation to absorb impact energy, realizing the dual functions of heat insulation and shock absorption. The multi-point contact structure also increases the stability of the overall structure and prevents interlayer slippage during use.

[0007] Based on the above technical solution, the heat insulation sandwich structure of the anti-slip, heat-insulating, and shock-absorbing pad of this utility model can be further improved as follows:

[0008] The first protrusion is shaped like a truncated cone, and the angle between the side of the truncated cone and the lower surface of the upper plate is 60°~80°.

[0009] The beneficial effects of adopting the above-mentioned improved scheme are as follows: The first protrusion structure adopts the shape of a frustum and sets the angle between the side and the lower surface of the upper plate to 60°~80°. This angle range allows the protrusion structure to decompose part of the force into radial component when subjected to vertical pressure, effectively dispersing stress concentration. The gradual change of the frustum shape from bottom to top enhances the mechanical strength of the protrusion structure and avoids the problem of root fracture during long-term use. At the same time, the inclined design of the frustum side provides a good support surface for the honeycomb wall of the insulation layer, improving the overall compressive strength and service life of the structure.

[0010] Furthermore, the second protrusion is hemispherical, and the radius of curvature of the spherical surface of the second protrusion gradually decreases from the bottom to the top in the radial direction.

[0011] The beneficial effects of adopting the above-mentioned improved scheme are as follows: The second protrusion structure adopts a hemispherical shape and the radius of curvature of the sphere gradually decreases from the bottom to the top in the radial direction, forming a teardrop-like transition structure. This variable curvature design enables the protrusion structure to achieve gradual stress transfer when in contact with the insulation layer, avoiding local damage caused by stress abrupt changes. The spherical top can provide uniform support in multiple directions. When the pad is subjected to lateral shear force, the hemispherical structure can absorb energy through deformation, enhancing the shear resistance and overall stability of the insulation sandwich structure. The variable curvature design also optimizes the material distribution and improves the material utilization rate.

[0012] Furthermore, each cell in the honeycomb structure of the insulation layer is a regular hexagon, and the wall thickness of adjacent cells is less than one-tenth of the diameter of the inscribed circle of the cell.

[0013] The beneficial effects of adopting the above-mentioned improved scheme are as follows: the insulation layer adopts a regular hexagonal honeycomb unit structure and the wall thickness of adjacent honeycomb units is controlled within one-tenth of the diameter of the inscribed circle of the honeycomb. This refined geometric parameter design achieves the best balance between lightweight and strength. The regular hexagonal structure can achieve seamless close-knitting in the plane to form a continuous support network. The thin-wall design maximizes the proportion of air layers and reduces the thermal conductivity coefficient. The multiple closed cavities of the honeycomb structure form a multi-layer thermal insulation barrier to prevent the convection transfer of heat. When subjected to pressure, the honeycomb wall can undergo coordinated deformation to absorb energy. This structure not only ensures thermal insulation performance but also provides good buffering and shock absorption effects.

[0014] Furthermore, the first protrusions are arranged in an array along the surface of the upper plate, and the spacing between two adjacent first protrusions is equal to 2 to 3 times the diameter of the bottom end face of the first protrusion.

[0015] The beneficial effects of adopting the above-mentioned improved scheme are as follows: the first protrusion structure is distributed in an array along the surface of the upper plate and the spacing between adjacent protrusions is set to 2 to 3 times the diameter of the bottom end face of the protrusion. This spacing ratio ensures that the protrusion structure provides sufficient support points while avoiding the stress superposition effect caused by excessively dense arrangement. The uniform array distribution allows the pressure transmitted by the upper plate to be evenly distributed to each protrusion structure, preventing the occurrence of local overload. The appropriate spacing also reserves sufficient deformation space for the honeycomb structure of the insulation layer, so that the honeycomb wall can elastically deform in the direction of the protrusion gap when under pressure, giving full play to the shock absorption effect. The array arrangement method facilitates standardized production and reduces manufacturing difficulty.

[0016] Furthermore, the vertical height between the top of the second protrusion and the upper surface of the lower plate is less than the vertical height between the top of the first protrusion and the lower surface of the upper plate.

[0017] The beneficial effects of adopting the above-mentioned improved scheme are as follows: The design of the second protruding structure having a lower vertical height than the first protruding structure forms an asymmetrical support structure between the upper and lower plates. This height difference causes the insulation layer to form a segmented stress transmission path in the vertical direction. When the pad is subjected to external force, the higher first protruding structure first contacts the insulation layer and deforms to absorb most of the impact energy. Then, the lower second protruding structure begins to participate in bearing the load and provides a secondary buffering effect. This graded buffering mechanism significantly improves the shock absorption performance. The height difference also increases the length of the heat conduction path, further enhancing the heat insulation effect. The asymmetrical structural design makes the pad directional and suitable for different usage scenarios.

[0018] Furthermore, the upper and lower panels are fixedly connected by a sealing strip, and the inner side of the sealing strip forms an embedded connection with the side surfaces of the upper and lower panels.

[0019] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the upper and lower panels are fixedly connected around the perimeter by a sealing connecting strip, and the inner side of the connecting strip forms an embedded connection with the side surface of the panel. This connection method forms a closed sealing structure around the panel to prevent external moisture and pollutants from entering the interior of the insulation layer. The embedded connection increases the connection area and improves the connection strength, ensuring that delamination will not occur during long-term use. The sealing connecting strip can also constrain the relative displacement of the upper and lower panels, maintaining the correct positional relationship between the raised structure and the insulation layer. The closed internal environment protects the honeycomb structure of the insulation layer from the influence of the external environment, maintaining stable heat insulation and shock absorption performance. The embedded design makes the overall structure more compact and the appearance more beautiful.

[0020] Furthermore, the insulation layer is made of polyurethane foam, while the upper and lower panels are made of silicone rubber.

[0021] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the insulation layer is made of polyurethane foam, while the upper and lower panels are made of silicone rubber. Polyurethane foam has excellent thermal insulation properties and lightweight characteristics, which can effectively prevent heat transfer while maintaining the overall lightweight structure. Silicone rubber has good elasticity and weather resistance, and can withstand repeated compression deformation without permanent deformation. The high coefficient of friction of silicone rubber gives the surface of the upper panel good anti-slip properties. This combination of materials achieves the optimized configuration of the performance of each component. The good compatibility and adhesion between polyurethane and silicone rubber ensures a reliable connection between the raised structure and the insulation layer. The temperature resistance of silicone rubber allows the pad to maintain stable performance over a wide temperature range.

[0022] Furthermore, the upper surface of the upper panel is provided with several anti-slip patterns, which are wavy or serrated, and a groove structure is formed between two adjacent anti-slip patterns.

[0023] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the upper surface of the upper board is provided with wavy or sawtooth anti-slip textures and groove structures are formed between adjacent textures. This surface texture design significantly increases the friction between the mat and the contact object, effectively preventing slippage during use. The groove structure can drain the water film between the contact surfaces in a humid environment to maintain a good anti-slip effect. The wavy or sawtooth textures provide uniform grip in different directions, adapting to various placement directions and usage postures. The surface textures also increase the contact area between the mat and the object, improving frictional stability. The presence of grooves enhances the breathability of the upper board, which is conducive to heat dissipation. The combination of anti-slip texture design and heat insulation and shock absorption functions makes the mat have more comprehensive performance and meets multiple needs in practical applications.

[0024] Furthermore, the positional offset distance between the first protrusion structure and the second protrusion structure in the horizontal projection direction is greater than half the diameter of the bottom end face of the first protrusion structure and less than twice the diameter of the bottom end face of the first protrusion structure.

[0025] The beneficial effects of adopting the above-mentioned improved scheme are as follows: The first protruding structure and the second protruding structure form a specific range of positional offset in the horizontal projection direction. This staggered arrangement means that there is no direct heat conduction path between the upper and lower plates. Heat must go through multiple turns and detours to be transferred from the upper layer to the lower layer, which greatly extends the heat transfer path and increases the heat transfer resistance. The staggered structure forms an interlaced support network in the vertical direction. When one side of the protrusion is under pressure, the other side of the protrusion can provide lateral support, which enhances the deformation resistance of the overall structure. The reasonable setting of the offset distance ensures that the honeycomb wall of the insulation layer can obtain support in multiple directions and avoid local instability. This optimized arrangement in three-dimensional space enables the insulation sandwich structure to have stronger mechanical strength and stability while maintaining good insulation performance. The staggered design also increases the complexity of the structure, increases the difficulty of imitation, and has certain technical protection value.

[0026] Compared with existing technologies, the beneficial effects of the heat insulation sandwich structure of the anti-slip, heat-insulating, and shock-absorbing pad provided by this utility model are as follows: By setting protrusions of different shapes and heights on the lower surface of the upper plate and the upper surface of the lower plate, and arranging them in a staggered manner in space, a multi-point contact three-dimensional support network is formed in conjunction with the honeycomb heat insulation layer, fundamentally solving the problem of high heat conduction efficiency caused by the large contact area of ​​traditional heat insulation pads. The conical and hemispherical designs of the protrusions and the height differences between them form a graded buffering mechanism. When the pad is impacted, the elastic deformation of the protrusions and the coordinated deformation of the honeycomb structure of the heat insulation layer can absorb the impact energy, effectively preventing interlayer slippage. The staggered arrangement of the protrusions makes the heat conduction path tortuous, significantly reducing the heat conduction coefficient. At the same time, the staggered support points form a stable mechanical structure, improving the overall shear resistance and structural stability. The lightweight design of the honeycomb heat insulation layer maximizes the air layer ratio while ensuring strength, further enhancing the heat insulation effect. The surrounding sealing connection ensures that the internal structure is not affected by the external environment and maintains long-term stable performance. The anti-slip textured design on the upper surface ensures reliable anti-slip performance even in wet environments, while optimized material selection maximizes the performance of each component. The overall structural design organically combines heat insulation, shock absorption, and anti-slip functions, offering superior overall performance and a longer service life compared to existing technologies. It is particularly suitable for applications requiring both heat insulation and shock absorption. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 A three-dimensional schematic diagram of the heat insulation sandwich structure of an anti-slip, heat-insulating, and shock-absorbing pad;

[0029] Figure 2 A schematic cross-sectional view of the heat insulation sandwich structure of an anti-slip, heat-insulating, and shock-absorbing pad;

[0030] Figure 3 This is a schematic diagram showing the contact between a cellular cell and a raised structure.

[0031] The attached diagram lists the components represented by each number as follows:

[0032] 10. Upper panel; 11. Lower panel; 12. Insulation layer; 13. Insulation unit; 14. First raised structure; 15. Second raised structure; 16. Honeycomb unit. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0034] like Figure 1-3 The image shows an embodiment of the heat insulation sandwich structure of an anti-slip, heat-insulating, and shock-absorbing pad provided by this utility model. In this embodiment, it includes an upper plate 10, a lower plate 11, and a heat insulation layer 12 disposed between the upper plate and the lower plate. The heat insulation layer is composed of multiple heat insulation units 13, each heat insulation unit having a honeycomb structure. The lower surface of the upper plate is provided with several first protrusions 14, and the upper surface of the lower plate is provided with several second protrusions 15. The first protrusions and second protrusions are staggered in the vertical direction. The wall surface of the honeycomb structure of the heat insulation layer forms a multi-point contact connection with the first and second protrusions. The contact area between the top surface of the first protrusion and the heat insulation layer is smaller than the connection area between the bottom surface of the first protrusion and the upper plate.

[0035] In the above technical solution, the first protrusion structure is in the shape of a frustum, and the angle between the side of the frustum of the first protrusion structure and the lower surface of the upper plate is 60°~80°.

[0036] Furthermore, in the above technical solution, the second protrusion structure is hemispherical, and the radius of curvature of the spherical surface of the second protrusion structure gradually decreases from the bottom to the top in the radial direction.

[0037] Furthermore, in the above technical solution, each honeycomb cell 16 of the honeycomb structure of the heat insulation layer is a regular hexagon, and the wall thickness of adjacent honeycomb cells is less than one-tenth of the diameter of the inscribed circle of the honeycomb cell.

[0038] Furthermore, in the above technical solution, the first protrusion structure is distributed in an array along the surface of the upper plate, and the distance between two adjacent first protrusion structures is equal to 2 to 3 times the diameter of the bottom end face of the first protrusion structure.

[0039] Furthermore, in the above technical solution, the vertical height between the top of the second protrusion structure and the upper surface of the lower plate is less than the vertical height between the top of the first protrusion structure and the lower surface of the upper plate.

[0040] Furthermore, in the above technical solution, the periphery of the upper plate and the lower plate are fixedly connected by a sealing connecting strip, and the inner side of the sealing connecting strip forms an embedded connection with the side surfaces of the upper plate and the lower plate.

[0041] Furthermore, in the above technical solution, the heat insulation layer is made of polyurethane foam material, and the upper and lower panels are made of silicone rubber material.

[0042] Furthermore, in the above technical solution, the upper surface of the upper plate is provided with several anti-slip patterns, which are wavy or sawtooth-shaped, and a groove structure is formed between two adjacent anti-slip patterns.

[0043] Furthermore, in the above technical solution, the positional offset distance between the first protrusion structure and the second protrusion structure in the horizontal projection direction is greater than half the diameter of the bottom end face of the first protrusion structure and less than twice the diameter of the bottom end face of the first protrusion structure.

[0044] The method of using this utility model is as follows: Before use, first confirm the up-down direction of the anti-slip, heat-insulating, and shock-absorbing pad. The side with the anti-slip texture should be the top surface facing the direction where the object is placed. Place the pad flat on the location where heat insulation and shock absorption are required, ensuring that the bottom surface of the pad is completely in contact with the bearing surface without any suspended parts. For applications requiring high temperatures, the heat-generating object should be placed directly in the central area of ​​the top surface of the pad. In this case, the upper plate will receive the heat first, and the heat will be conducted through the upper plate to the first raised structure. Since the first raised structure and the heat insulation layer are in point contact and there are air gaps between the raised structures, the downward conduction of heat is effectively blocked. The honeycomb structure of the heat insulation layer further prevents heat diffusion, and the heat finally transferred to the lower plate has been greatly attenuated, thus protecting the bearing surface below from high temperatures. For applications requiring shock absorption, when an item is placed or dropped onto the pad, the impact force first acts on the upper panel. The upper panel then transfers the force to the first raised structure, which undergoes compression deformation to absorb some of the energy. Subsequently, the honeycomb structure of the insulation layer further buffers the impact under pressure through coordinated deformation. Because the first and second raised structures are staggered, a multi-level buffering mechanism is formed, the impact energy is dispersed and dissipated. The force transmitted to the lower panel and the final load-bearing surface is significantly reduced, effectively protecting the load-bearing surface and the item itself from damage. In humid or oily environments, the anti-slip texture on the upper surface effectively increases friction, and the grooves between the textures allow moisture and oil to drain, keeping the contact surface dry and ensuring that placed items do not slip. During use, avoid puncturing the pad with sharp objects and avoid using it at extreme temperatures exceeding the material's temperature resistance range. Regularly check the integrity of the sealing strips around the pad; if damage is found, replace them promptly to maintain the sealing of the internal insulation layer. When cleaning, wipe the surface with a soft, damp cloth and avoid using strong corrosive cleaning agents. When storing, place the pad flat in a dry and ventilated place to avoid long-term pressure deformation.

[0045] The following is a specific embodiment 1 of this utility model: This embodiment provides a heat-insulating sandwich structure for an anti-slip, heat-insulating, and shock-absorbing pad. The upper plate is made of 3mm thick silicone rubber sheet with a Shore A hardness of 60 Shore A and a temperature resistance range of -40°C to 200°C. The upper plate has a square shape with a planar dimension of 200mm × 200mm. 36 first protrusions are evenly distributed on the lower surface of the upper plate, arranged in a 6x6 matrix. Each first protrusion is a truncated cone shape with a bottom diameter of 12mm, a top diameter of 6mm, and a height of 8mm. The angle between the side of the truncated cone and the lower surface of the upper plate is 70°. The distance between the centers of two adjacent first protrusions is 30mm. The first protrusions and the upper plate are integrally molded using injection molding. The lower plate also uses 3mm thick silicone rubber sheet with the same material parameters as the upper plate, and its planar dimension is also 200mm × 200mm. The upper surface of the lower plate has 36 second protrusions arranged in the same way as the first protrusions, but these second protrusions are hemispherical in shape. The bottom diameter of the hemisphere is 10mm, and the maximum height is 5mm. The radius of curvature of the hemisphere is 8mm at the bottom and 4mm at the top, gradually decreasing radially to resemble a teardrop. These second protrusions are also integrally formed with the lower plate. The insulation layer is made of polyurethane foam with an overall thickness of 15mm and a thermal conductivity of 0.025 W / (m·K). The insulation layer has a honeycomb structure, with each honeycomb unit being a regular hexagon with a side length of 5mm and a honeycomb wall thickness of 0.4mm. Adjacent honeycomb units share walls to form a continuous honeycomb network. The first and second protrusions are staggered in horizontal projection by 20mm, meaning the center projection of each first protrusion falls at the center of a square formed by four second protrusions. This staggered arrangement ensures that there are no vertically aligned heat transfer paths between the upper and lower protrusions. The upper panel, insulation layer, and lower panel are secured around their perimeters with a 10mm wide and 2mm thick silicone rubber sealing strip. The inner edge of the sealing strip is embedded in a 1.5mm deep groove pre-cut into the sides of the upper and lower panels, forming a reliable seal through heat pressing. The upper surface of the upper panel features a wavy anti-slip texture with parallel lines spaced 8mm apart. Each line has a peak height of 1.5mm and a trough depth of 1mm, forming a 6.5mm wide groove between adjacent lines for drainage and oil removal. The entire pad is 29mm thick and weighs approximately 180g, offering excellent portability. In practical use, the heat-insulating and shock-absorbing pad was placed flat on a table, and a hot pot at 180°C was placed on its surface. After 5 minutes, the temperature of the lower surface of the pad was only 45°C, while the table surface temperature remained around 30°C, demonstrating excellent heat insulation performance.A 2kg object was dropped from a height of 50cm onto the mat. The mat absorbed most of the impact energy, with only a slight vibration felt on the table below, and the mat structure remained intact. In a humid environment, a glass filled with water was placed on the mat's surface; the glass remained stable without slipping, verifying the effectiveness of the anti-slip function.

[0046] The following is another specific embodiment 2 of this utility model: This embodiment is based on embodiment 1, but the number of the first protrusion structure is increased to 64, the arrangement is changed to 8 rows and 8 columns, the center distance between adjacent protrusions is reduced to 24mm, the bottom diameter of the first protrusion structure is reduced to 10mm, the top diameter is reduced to 5mm, and the height is maintained at 8mm. At the same time, the number of the second protrusion structure is also increased to 64, and they are arranged in a staggered manner corresponding to the first protrusion structure. The hemispherical bottom diameter of the second protrusion structure is reduced to 8mm, and the maximum height is maintained at 5mm. By increasing the density of the protrusion structure, the number of contact points is increased, which further improves the load-bearing capacity and stress distribution uniformity of the pad. It is particularly suitable for use scenarios that need to withstand large loads or place multiple small items. The improved structure maintains the heat insulation performance while making the shock absorption effect more significant, and the load-bearing capacity is increased by about 30%. At the same time, due to the denser distribution of the protrusion structure, the support on the surface of the pad is more uniform, and the stability of irregularly shaped items is also significantly improved.

[0047] The following is another specific embodiment 3 of this utility model: This embodiment is based on embodiment 1, and the honeycomb structure of the heat insulation layer is optimized and improved. The side length of the regular hexagon of the honeycomb unit is increased from 5mm to 8mm, while the thickness of the honeycomb wall remains unchanged at 0.4mm. This change increases the internal cavity volume of a single honeycomb unit, further increases the air layer ratio, and reduces the thermal conductivity of the heat insulation layer to 0.020 W / (m·K). At the same time, the overall thickness of the heat insulation layer is increased from 15mm to 20mm, and correspondingly, the height of the first protrusion structure is increased from 8mm to 10mm, and the height of the second protrusion structure is increased from 5mm to 7mm to accommodate the thickened heat insulation layer. The total thickness of the pad increases to 34mm. In addition, the anti-slip texture on the upper surface of the upper plate is changed from a wave shape to a serrated shape. The tooth tip angle is 60°, the tooth height is 2mm, and the tooth pitch is 6mm. Compared with the wave shape, the serrated texture provides stronger directional anti-slip capability, which is particularly suitable for applications requiring tilting. The improved structure offers approximately 20% better thermal insulation performance. After being subjected to a 200°C object for 5 minutes, the temperature of the lower surface of the pad can be controlled below 40°C, making it more suitable for applications requiring long-term or higher-temperature insulation. The increased thickness also allows for greater deformation space in the honeycomb structure, further enhancing shock absorption and cushioning performance, enabling it to withstand higher-intensity impact loads. The serrated anti-slip texture ensures that the pad maintains good anti-slip performance even when tilted at an angle of 15°, expanding the product's application range and making it suitable for inclined workbenches or special working conditions requiring use on non-horizontal surfaces.

[0048] Specifically, the principle of this invention is as follows: by changing the contact method between the insulation layer and the upper and lower plates from surface contact to multi-point contact, the continuous heat conduction path is fundamentally blocked, and a stable damping support network is constructed. Specifically, a first protruding structure is provided on the lower surface of the upper plate, and a second protruding structure is provided on the upper surface of the lower plate. The tops of these protruding structures form discrete contact points with the honeycomb wall of the insulation layer. Heat can only be conducted through these limited contact points, and there are a large number of air gaps between the contact points. Since the thermal conductivity of air is much lower than that of solid materials, these air gaps become effective thermal resistance layers, significantly reducing the overall heat conduction efficiency. At the same time, the staggered arrangement of the first and second protruding structures in the vertical direction means that even if heat is conducted to the insulation layer through a certain protrusion, it cannot be directly transferred to the protrusion on the opposite side. Instead, it must move a considerable distance laterally along the honeycomb wall to find the next conduction path. This tortuous conduction path further increases the thermal resistance. In terms of vibration damping, the raised structure itself is made of elastic material. When the pad is impacted, the raised structure first undergoes elastic compression to absorb some of the impact energy. Subsequently, the honeycomb structure of the insulation layer undergoes coordinated deformation under pressure, with the honeycomb wall bending and torsion further dissipating energy. Since the raised structure and the honeycomb wall have a point contact relationship, the contact points can slide or roll along the wall when relative displacement occurs, without generating tearing forces like surface bonding. This avoids structural damage caused by interlayer slippage. The first raised structure adopts a frustum shape, while the second raised structure adopts a hemispherical shape. This difference in shape results in different deformation modes when subjected to force. The frustum structure mainly undergoes axial shortening during compression, while the hemispherical structure undergoes radial expansion. This asynchronous deformation can compensate for each other and maintain the stability of the overall structure. The staggered arrangement of the raised structures also forms a spatial support system similar to a truss. When a certain part of the pad is subjected to force, multiple adjacent raised structures can share the load and achieve uniform stress distribution. The honeycomb-shaped insulation layer provides numerous closed cavities. These cavities not only prevent heat convection but also provide buffer space for the deformation of the raised structure. The surrounding sealing strips ensure the airtightness of the internal cavities, preventing moisture intrusion and air convection. The anti-slip texture on the upper surface, through increased friction coefficient and drainage grooves, guarantees anti-slip performance under various environmental conditions. The entire structure, through optimized geometry and a rational combination of material properties, achieves a synergistic effect of multiple functions including heat insulation, shock absorption, and anti-slip, fundamentally solving the core problems of high heat conduction efficiency and easy interlayer slippage inherent in traditional insulation pads.

Claims

1. A heat-insulating sandwich structure for an anti-slip, heat-insulating, and shock-absorbing pad, comprising an upper plate, a lower plate, and a heat-insulating layer disposed between the upper and lower plates, wherein the heat-insulating layer is composed of multiple heat-insulating units, each heat-insulating unit having a honeycomb structure, characterized in that, The lower surface of the upper plate has several first protrusions, and the upper surface of the lower plate has several second protrusions. The first and second protrusions are staggered in the vertical direction. The wall of the honeycomb structure of the insulation layer forms a multi-point contact connection with the first and second protrusions. The contact area between the top surface of the first protrusion and the insulation layer is smaller than the connection area between the bottom surface of the first protrusion and the upper plate.

2. The heat insulation sandwich structure of the anti-slip, heat-insulating, and shock-absorbing pad according to claim 1, characterized in that, The first protrusion is shaped like a truncated cone, and the angle between the side of the truncated cone and the lower surface of the upper plate is 60°~80°.

3. The heat insulation sandwich structure of the anti-slip, heat-insulating, and shock-absorbing pad according to claim 2, characterized in that, The second protrusion is hemispherical, and the radius of curvature of the spherical surface of the second protrusion gradually decreases from the bottom to the top in the radial direction.

4. The heat insulation sandwich structure of the anti-slip, heat-insulating, and shock-absorbing pad according to claim 3, characterized in that, Each cell in the honeycomb structure of the insulation layer is a regular hexagon, and the wall thickness of adjacent cells is less than one-tenth of the diameter of the inscribed circle of the cell.

5. The heat-insulating sandwich structure of the anti-slip, heat-insulating, and shock-absorbing pad according to claim 4, characterized in that, The first protrusion structure is distributed in an array along the surface of the upper plate, and the distance between two adjacent first protrusion structures is equal to 2 to 3 times the diameter of the bottom end face of the first protrusion structure.

6. The heat insulation sandwich structure of the anti-slip, heat-insulating, and shock-absorbing pad according to claim 5, characterized in that, The vertical distance between the top of the second protrusion and the upper surface of the lower plate is less than the vertical distance between the top of the first protrusion and the lower surface of the upper plate.

7. The heat-insulating sandwich structure of the anti-slip, heat-insulating, and shock-absorbing pad according to claim 6, characterized in that, The upper and lower panels are fixedly connected by a sealing strip, and the inner side of the sealing strip forms an embedded connection with the side surfaces of the upper and lower panels.

8. The heat insulation sandwich structure of the anti-slip, heat-insulating, and shock-absorbing pad according to claim 7, characterized in that, The insulation layer is made of polyurethane foam, while the upper and lower panels are made of silicone rubber.

9. The heat-insulating sandwich structure of the anti-slip, heat-insulating, and shock-absorbing pad according to claim 8, characterized in that, The upper surface of the upper panel is provided with several anti-slip patterns, which are wavy or sawtooth in shape, and a groove structure is formed between two adjacent anti-slip patterns.

10. The heat-insulating sandwich structure of the anti-slip, heat-insulating, and shock-absorbing pad according to claim 9, characterized in that, The positional offset between the first protrusion and the second protrusion in the horizontal projection direction is greater than half the diameter of the bottom end face of the first protrusion and less than twice the diameter of the bottom end face of the first protrusion.

Images