Silica gel foam sealing ring with buffering and damping functions

Abstract

The utility model discloses a kind of silica gel foam sealing rings with buffer shock attenuation, belong to sealing ring technical field, including upper sealing ring and lower sealing ring, upper sealing ring is connected with lower sealing ring by buffer piece, and the air buffer layer of sealing is constructed by buffer piece, and the outer edge of lower sealing ring and upper sealing ring is extended with buffer extension edge ring, upper sealing ring is connected with lower sealing ring by hourglass type buffer piece or V type buffer piece, and the air buffer layer of sealing is formed.When axial pressure is received, air layer is compressed to produce elastic deformation, and the structural deformation of buffer piece is combined.

Description

Technical Field

[0001] This utility model relates to a sealing ring, and more particularly to a silicone foam sealing ring with cushioning and shock absorption, belonging to the field of sealing ring technology. Background Technology

[0002] Existing sealing rings are all solid, one-piece molded designs. However, such structures cannot easily form a buffer air layer inside. Moreover, the solid, one-piece molded design results in poor cushioning during compression, as the cushioning relies entirely on the material itself. Therefore, a silicone foam sealing ring with cushioning and shock absorption is designed to solve the above problems. Utility Model Content

[0003] The main purpose of this invention is to provide a silicone foam sealing ring with cushioning and shock absorption.

[0004] The objective of this utility model can be achieved by adopting the following technical solution:

[0005] A silicone foam sealing ring with cushioning and shock absorption, comprising an upper sealing ring and a lower sealing ring;

[0006] The upper and lower sealing rings are connected by a buffer element, which forms a sealed air buffer layer.

[0007] A buffer extension ring extends outward from the outer edge of both the lower and upper sealing rings.

[0008] Preferably, the buffer is an hourglass-shaped buffer, which has an hourglass structure and connects the upper and lower sealing rings to form an air buffer layer.

[0009] Preferably, the buffer is a V-shaped buffer, which has a V-shaped structure and connects two sets of buffer edge rings to form an air buffer layer.

[0010] Preferably, a buffer protrusion is provided on the inner side of the lower sealing ring and the upper sealing ring.

[0011] Preferably, an anti-slip layer is provided on the outer side of both the upper and lower sealing rings.

[0012] Preferably, the upper sealing ring, lower sealing ring, buffer, and buffer edge ring are all made of the same material.

[0013] Preferably, the gas in the air buffer layer is an inert gas.

[0014] Preferably, the two sets of buffer edge rings are outwardly extending structures that are close to each other.

[0015] The beneficial technical effects of this utility model are as follows:

[0016] This utility model provides a silicone foam sealing ring with cushioning and shock absorption. The upper and lower sealing rings are connected by an hourglass-shaped buffer or a V-shaped buffer to form a sealed air buffer layer. When subjected to axial pressure, the air layer is compressed and undergoes elastic deformation, combined with the structural deformation of the buffer (such as hourglass waist contraction or V-shaped folding).

[0017] Buffer extension ring auxiliary buffer:

[0018] The outer ring of the buffer extension ring has a gradually shrinking extension structure. When under pressure, they squeeze each other to generate elastic deformation buffer. At the same time, the extension angle design realizes stress dispersion and avoids material damage caused by local overload.

[0019] The inner buffer rings (semi-cylindrical or trapezoidal) contact each other, and the rigid impact energy dissipation further enhances the buffering effect. The staggered distribution design can reduce stress concentration and extend service life. Attached Figure Description

[0020] Figure 1 A three-dimensional structural schematic diagram of a preferred embodiment of a silicone foam sealing ring with cushioning and shock absorption according to the present invention;

[0021] Figure 2 A three-dimensional structural schematic diagram of a preferred embodiment of a silicone foam sealing ring with cushioning and shock absorption according to the present invention;

[0022] Figure 3 This is a first-view perspective three-dimensional structural diagram of a preferred embodiment three of a silicone foam sealing ring with cushioning and shock absorption according to the present invention;

[0023] Figure 4 This is a second-view perspective three-dimensional structural diagram of a preferred embodiment of a silicone foam sealing ring with cushioning and shock absorption according to the present invention.

[0024] In the diagram: 1-lower sealing ring, 2-hourglass-shaped buffer, 3-buffer extension ring, 4-upper sealing ring, 5-V-shaped buffer, 6-buffer convex ring. Detailed Implementation

[0025] To enable those skilled in the art to understand the technical solution of this utility model more clearly, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of this utility model is not limited thereto.

[0026] Example 1

[0027] like Figure 1As shown, this utility model employs two sealing rings in its structural design: an upper sealing ring 4 and a lower sealing ring 1. Buffer edge rings 3 extend and approach each other at the edges of the upper and lower sealing rings 4 and 1. When pressure is applied to the upper and lower sealing rings 4 and 1, the two sets of buffer edge rings 3 come into contact with each other, providing initial cushioning during this contact. Furthermore, the buffer edge rings 3 extend outwards when pressed together, further improving the sealing performance. Additionally, an integrally formed hourglass-shaped buffer element 2 is designed between the upper and lower sealing rings 4 and 1. The two sets of hourglass-shaped buffer elements 2 suspend the upper and lower sealing rings 4 and 1, forming an air buffer layer. Therefore, when the upper and lower sealing rings 4 and 1 are compressed, the air between the hourglass-shaped buffer element 2, the upper sealing ring 4, and the lower sealing ring 1 is compressed, providing further cushioning and saving material.

[0028] The upper sealing ring (4) and the lower sealing ring (1) are both circular ring structures with an inner diameter ranging from φ50 to φ200 mm and a thickness of 3 to 8 mm.

[0029] The height of a single hourglass-shaped buffer is 4-10mm, the minimum width of the waist is 1.5-3mm, and the diameter of the top and bottom ends is 2.5-5mm.

[0030] 8-24 buffers are evenly distributed along the circumference, with a spacing of 5-15mm between adjacent buffers;

[0031] The buffer extension ring 3 has an extension angle of 30°-60° (angle with the axis of the sealing ring body), a thickness of 0.8-2mm, and a width of 5-12mm;

[0032] The angle between the extension directions of the two sets of extension rings (upper / lower) is 10°-20°, forming a tapered contact structure;

[0033] The initial gas pressure of the air buffer layer is 0.8-1.2 standard atmospheres, and the filling gas is nitrogen or argon with a purity of ≥99.9%.

[0034] The sealing ring is made of silicone foam with the following parameters: Shore hardness 20-40A, density 0.6-0.9 g / cm³. 3 Tensile strength ≥1.5MPa, elongation at break ≥300%;

[0035] Molding process: Compression molding is adopted, with mold temperature of 150-180℃, holding time of 8-15 minutes, and cooling rate of 5-10℃ / min;

[0036] The buffer component and the sealing ring body are vulcanized as a single piece, without the need for secondary bonding.

[0037] Example 2

[0038] like Figure 2 As shown, in this embodiment, the design of the upper sealing ring 4, the buffer edge ring 3, and the lower sealing ring 1 is the same as in Embodiment 1. The difference is that a V-shaped buffer element 5 is designed on the inner edge of the buffer edge ring 3. This V-shaped buffer element 5 connects the two sets of buffer edge rings 3 to form a V-shaped structure. An air buffer layer is formed between the two sets of V-shaped buffer elements 5. Therefore, when the upper sealing ring 4 and the lower sealing ring 1 are compressed, not only will the contact buffer between the buffer edge rings 3 be achieved and the sealing effect be increased, but the folding buffer effect of the V-shaped buffer element 5 and the compressed air buffer layer will also be achieved to achieve the buffering effect.

[0039] The V-shaped buffer 5 has a symmetrical structure: V-angle: 60°-120°, which can be adjusted according to the sealing ring specifications (smaller sizes use a larger angle, and larger sizes use a smaller angle);

[0040] V-shaped buffer 5 thickness: 0.5-1.8mm, tip thickness 0.3-1mm.

[0041] Example 3

[0042] like Figure 3 and 4 As shown, the difference between this embodiment and the first embodiment is that a buffer convex ring 6 is designed between the lower sealing ring 1 and the upper sealing ring 4. When the lower sealing ring 1 and the upper sealing ring 4 are compressed, the two sets of buffer convex rings 6 collide with each other to achieve the buffering effect.

[0043] The above description is only a further embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the scope disclosed by the present utility model, based on the technical solution and concept of the present utility model, shall fall within the protection scope of the present utility model.

Claims

1. A silicone foam sealing ring with cushioning and shock absorption, comprising an upper sealing ring (4) and a lower sealing ring (1); Its features are: The upper sealing ring (4) and the lower sealing ring (1) are connected by a buffer, and a sealed air buffer layer is constructed by the buffer. A buffer extension ring (3) extends outward from the outer edge of the lower sealing ring (1) and the upper sealing ring (4).

2. The silicone foam sealing ring with cushioning and shock absorption according to claim 1, characterized in that: The buffer is an hourglass-shaped buffer (2). The hourglass-shaped buffer (2) has an hourglass structure and connects the upper sealing ring (4) and the lower sealing ring (1) to form an air buffer layer.

3. The silicone foam sealing ring with cushioning and shock absorption according to claim 1, characterized in that: The buffer is a V-shaped buffer (5), which has a V-shaped structure. The V-shaped buffer (5) connects two sets of buffer edge rings (3) to form an air buffer layer.

4. The silicone foam sealing ring with cushioning and shock absorption according to claim 1, characterized in that: A buffer protrusion (6) is provided on the inner side of the lower sealing ring (1) and the upper sealing ring (4).

5. A silicone foam sealing ring with cushioning and shock absorption according to claim 1, characterized in that: An anti-slip layer is provided on the outer side of both the upper sealing ring (4) and the lower sealing ring (1).

6. A silicone foam sealing ring with cushioning and shock absorption according to claim 1, characterized in that: The upper sealing ring (4), the lower sealing ring (1), the buffer and the buffer edge ring (3) are all made of the same material.

7. A silicone foam sealing ring with cushioning and shock absorption according to claim 1, characterized in that: The gas inside the air buffer layer is an inert gas.

8. A silicone foam sealing ring with cushioning and shock absorption according to claim 1, characterized in that: The two sets of buffer extension rings (3) are outward extension structures that are close to each other.

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