Foam for damping and sealing

Abstract

The utility model relates to the technical field of foam, in particular to foam for damping and sealing, which comprises a first foam area, a second foam area, a third foam area and a fourth foam area which are sequentially arranged around a central axis, a tensile mechanism and an elastic mechanism are clamped among the four foam areas, and a sealing layer is arranged on the periphery of the four foam areas. The tensile mechanism comprises four layers of laminated tensile belts, one ends of the four layers of tensile belts surround a peripheral rolling area of the elastic mechanism to form a barrel shape, the other ends of the four layers of tensile belts are scattered towards four corners in the sealing layer, the upper and lower surfaces of the sealing layer are viscous planes, and the left and right side surfaces of the sealing layer are wrinkled surfaces; according to the foam for shock absorption and sealing, the four foam base bodies are arranged and separated through the tensile belts, the shock absorption bead chains can effectively disperse and absorb impact force, the shock absorption performance and elasticity of the foam are improved, the tensile belts can bear most tensile force, the foam base bodies are prevented from being broken due to tension, the compressible deformation space of the sealing layer is large, and the sealing effect is good. And the sealing device can adapt to sealing parts in different shapes.

Description

Technical Field

[0001] The utility model relates to the technical field of foam, in particular to a foam for shock absorption and sealing. Background Art

[0002] Foam has good performance in buffering, shock absorption, sealing, etc., and is widely used in the fields of electrical appliances, automobiles, packaging, etc. However, there are some deficiencies in the existing foam in actual use. On the one hand, the shock absorption performance of some foam needs to be improved. When facing a large impact force, it cannot well protect the packaged items or equipment. On the other hand, the sealing performance of some foam is not ideal, and it is easy to have air leakage, water seepage and other situations, affecting its use effect. Therefore, it is necessary to develop a new type of foam material that can not only effectively absorb shock but also maintain good sealing performance. Summary of the Invention

[0003] The purpose of the utility model is to provide a foam for shock absorption and sealing, and its shock absorption and sealing performance are improved compared with the prior art.

[0004] To solve the above technical problems, the technical solution adopted by the utility model is as follows:

[0005] A foam for shock absorption and sealing includes a first foam area, a second foam area, a third foam area and a fourth foam area arranged in sequence around the central axis. A tensile mechanism and an elastic mechanism are sandwiched between the above four, and a sealing layer is arranged on the periphery;

[0006] The tensile mechanism includes four layers of tensile belts stacked together. One end of the four layers of tensile belts forms a cylinder around the outer winding area of the elastic mechanism, and the other end spreads out to the inner four corners of the sealing layer. The upper and lower surfaces of the sealing layer are viscous planes, and the left and right side surfaces are wrinkled surfaces.

[0007] Further, the elastic mechanism is a shock-absorbing bead chain, which includes spherical segments and welded segments arranged adjacent to each other one by one, and inert gas is filled in the spherical segments.

[0008] Further, the tensile belts separate the first foam area, the second foam area, the third foam area and the fourth foam area from each other one by one.

[0009] Further, the cross-sectional shapes of the first foam area and the third foam area are the same, and the cross-sectional shapes of the second foam area and the fourth foam area are the same.

[0010] Further, a pressure-sensitive adhesive layer and a release paper layer are sequentially arranged on the upper surface of the sealing layer from bottom to top, and a pressure-sensitive adhesive layer and a release paper layer are sequentially arranged on the lower surface of the sealing layer from top to bottom.

[0011] Further, the tensile belt is woven from nylon filaments, and it connects the first foam area, the second foam area, the third foam area, the fourth foam area and the shock-absorbing bead chain through adhesion.

[0012] The beneficial effects produced by adopting the technical solution of the present utility model are as follows:

[0013] A foam for shock absorption and sealing according to the present utility model is provided with a four-zone foam matrix separated by a tensile belt, and a shock-absorbing bead chain is arranged in the middle, which can effectively disperse and absorb impact force, improve the shock-absorbing performance and elasticity of the foam. The tensile belt can bear most of the tensile force, avoiding the tensile fracture of the foam matrix. The upper and lower surfaces of the sealing layer are viscous planes for bonding with objects, and the left and right side surfaces are corrugated surfaces with a large compressible deformation space, which can adapt to different-shaped sealing parts, making the use of the foam more convenient and fast. Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model;

[0016] Figure 2 It is Figure 1 the sectional structural schematic diagram in the A-A direction in

[0017] Figure 3 It is Figure 2 the enlarged schematic diagram at C in

[0018] Figure 4 It is Figure 1 the sectional structural schematic diagram in the B-B direction in

[0019] Figure 5 It is the structural schematic diagram of the elastic mechanism in the present utility model;

[0020] In the figure: 1: the first foam area; 2: the second foam area; 3: the third foam area; 4: the fourth foam area; 5: the tensile mechanism; 6: the elastic mechanism; 6a: the spherical section; 6b: the welding section; 7: the sealing layer; 8: the pressure-sensitive adhesive layer; 9: the release paper layer. Detailed Embodiments

[0021] The present utility model will be further described in detail below with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner. Therefore, they only show the components related to the present utility model and should not limit the scope of protection of the present utility model.

[0022] Please refer to Figures 1 to 5 , a foam for shock absorption and sealing, which includes a first foam area 1, a second foam area 2, a third foam area 3, and a fourth foam area 4 arranged in sequence around the central axis. A tensile mechanism 5 and an elastic mechanism 6 are interposed between the above four, and a sealing layer 7 is arranged on the periphery; the upper and lower surfaces of the sealing layer 7 are viscous planes for bonding with objects, and the left and right side surfaces are corrugated surfaces with a large compressible deformation space.

[0023] Specifically, the elastic mechanism 6 is a shock-absorbing bead chain, which includes spherical segments 6a and welding segments 6b arranged adjacent to each other one by one. The spherical segments 6a are hollow inside and filled with inert gas. The shock-absorbing bead chain can effectively disperse and absorb impact force, improve the shock absorption performance and elasticity of the foam, and at most only one spherical segment 6a will be broken when cut at any position.

[0024] Combined with Figure 2 As shown, the tensile mechanism 5 includes four layers of tensile belts stacked together. One end of the four layers of tensile belts winds around the outer winding area of the elastic mechanism 6 to form a cylinder, and the other end spreads out to the inner four corners of the sealing layer 7. The tensile belts separate the first foam area 1, the second foam area 2, the third foam area 3, and the fourth foam area 4 one by one. The cross-sectional shapes of the first foam area 1 and the third foam area 3 are the same, and the cross-sectional shapes of the second foam area 2 and the fourth foam area 4 are the same. The tensile belts are woven from nylon filaments, which are adhesively connected to the first foam area 1, the second foam area 2, the third foam area 3, the fourth foam area 4, and the shock-absorbing bead chain through glue. The glue fully penetrates between the nylon filament bundles and the connection is firm. The tensile belts made of nylon material have a tensile strength much higher than that of the foam matrix and can bear most of the tensile force, avoiding the tensile fracture of the foam matrix.

[0025] Specifically, the sealing layer 7 is made of a polymer sealing material, has good flexibility and sealing performance, and can effectively prevent the penetration of gas and liquid. The upper surface of the sealing layer 7 is sequentially provided with a connected pressure-sensitive adhesive layer 8 and a release paper layer 9 from bottom to top, and the lower surface of the sealing layer 7 is sequentially provided with a connected pressure-sensitive adhesive layer 8 and a release paper layer 9 from top to bottom. The release paper layer 9 can be torn off from the pressure-sensitive adhesive layer 8. The pressure-sensitive adhesive layer 8 is convenient for fixing the foam in the required position. The release paper layer 9 can protect the pressure-sensitive adhesive layer 8 from contamination before use, and only needs to tear off the release paper layer 9 during use. Only by applying a slight pressure, the pressure-sensitive adhesive layer 8 can quickly generate an adhesive force with the surface of the adhered object to achieve rapid bonding without a long curing process.

[0026] For a further optimized solution, the first foam area 1, the second foam area 2, the third foam area 3 and the fourth foam area 4 are the foam main body. A series of micro-connected holes are designed within the foam main body layer. These pores can effectively disperse and absorb impact energy when subjected to external forces, further enhancing the shock absorption performance. In actual production, parameters such as the thickness of the foam main body 1, the diameter and quantity of the shock-absorbing bead chains, and the number of layers of the tensile belts can be adjusted according to different usage requirements to meet the application needs in different fields.

[0027] In summary of the above technical solutions, when a foam for shock absorption and sealing of the present utility model is in use, it has good elastic recovery performance. It can quickly return to its original state when subjected to external extrusion, ensuring that the sealing effect is always maintained during long-term use and preventing the penetration of gases, liquids, etc. It has good elasticity, compressible deformability, and high tensile strength, and can adapt to sealing parts of different shapes.

[0028] The above is only the preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. It should be noted that for those of ordinary skill in the art, any changes, modifications or additions made without departing from the concept of the present utility model should be covered within the protection scope of the present utility model.

Claims

1. A foam for shock absorption and sealing, characterized in that: It includes a first foam area (1), a second foam area (2), a third foam area (3) and a fourth foam area (4) arranged in sequence around the central axis. A tensile mechanism (5) and an elastic mechanism (6) are clamped between the above four, and a sealing layer (7) is arranged on the periphery. The tensile mechanism (5) includes four layers of tensile belts stacked together. One end of the four layers of tensile belts winds around the outer winding area of the elastic mechanism (6) to form a cylinder, and the other end spreads out to the inner four corners of the sealing layer (7). The upper and lower surfaces of the sealing layer (7) are viscous planes, and the left and right side surfaces are corrugated surfaces.

2. The foam for shock absorption and sealing according to claim 1, wherein: The elastic mechanism (6) is a shock-absorbing bead chain, which includes spherical segments (6a) and welding segments (6b) arranged adjacent to each other one by one. Inert gas is filled in the spherical segments (6a).

3. The foam for shock absorption and sealing according to claim 1, characterized in that: The tensile belts separate the first foam area (1), the second foam area (2), the third foam area (3) and the fourth foam area (4) one by one.

4. A foam for shock absorption and sealing according to claim 3, characterized in that: The cross-sectional shapes of the first foam area (1) and the third foam area (3) are the same, and the cross-sectional shapes of the second foam area (2) and the fourth foam area (4) are the same.

5. A foam for shock absorption and sealing according to claim 1, characterized in that: A pressure-sensitive adhesive layer (8) and a release paper layer (9) connected in sequence are arranged on the upper surface of the sealing layer (7) from bottom to top, and a pressure-sensitive adhesive layer (8) and a release paper layer (9) connected in sequence are arranged on the lower surface of the sealing layer (7) from top to bottom.

6. The foam for shock absorption and sealing according to claim 1, wherein: The tensile belts are woven from nylon filaments, and they connect the first foam area (1), the second foam area (2), the third foam area (3), the fourth foam area (4) and the shock-absorbing bead chain through adhesion.

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