High-strength multilayer silicone seal

By combining a multi-layer structure design with elastic sleeves, gaskets, and beads, the problems of single-layer silicone sealant's uniform hardness and poor pressure resistance and resilience are solved, achieving diversified sealing performance and stable installation.

CN224315476UActive Publication Date: 2026-06-02DONGGUAN INJECTION RUBBER IND
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN INJECTION RUBBER IND
Filing Date
2025-06-16
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Most existing silicone seals are single-layer structures with uniform hardness, making it difficult to meet the requirements of different sealing properties, and their pressure resistance and resilience are poor.

Method used

It adopts a multi-layer structure design. The inner sealing ring is made of 70-degree silicone with a lower hardness, while the outer sealing ring is made of 30-degree silicone with a higher hardness. Elastic sleeves, elastic pads, and elastic beads are set in the inner and outer rings respectively. Combined with the internal and external thread structure, it can achieve stable installation and improve pressure resistance and resilience.

Benefits of technology

It achieves stable installation and diverse sealing performance of multi-layer silicone seals, improves pressure resistance and resilience, and adapts to different sealing needs.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224315476U_ABST
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Abstract

The utility model discloses high strength multilayer silica gel sealing element, including sealing inner ring, the surface fixed setting of sealing inner ring has sealing outer ring, the bottom fixed setting of sealing outer ring surface has annular protruding, annular protruding and sealing inner ring fixed connection, sealing outer ring includes first base layer, the utility model discloses high strength multilayer silica gel sealing element, and this sealing element is composed of sealing inner ring and sealing outer ring, wherein the sealing inner ring is made of 70 degrees silica gel of lower hardness, and the sealing outer ring is made of 30 degrees silica gel of higher hardness, and is provided with internal thread in the inboard of sealing element, and the outside of sealing element is provided with external thread, and then it is convenient to install stably to sealing element, and can satisfy the requirement of different sealing performance, through setting up second elastic cover, second elastic pad and a plurality of second elastic beads on the surface of sealing inner ring, and setting up first elastic cover, first elastic pad and a plurality of first elastic beads on the inboard of sealing outer ring, can improve the compression resistance of sealing element.
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Description

Technical Field

[0001] This utility model relates to the field of silicone seals, specifically high-strength multilayer silicone seals. Background Technology

[0002] Silicone seals are primarily used for waterproofing and food preservation in everyday items such as food containers, rice cookers, water dispensers, lunch boxes, insulated boxes, thermos boxes, water cups, ovens, magnetized cups, and coffee makers. They offer excellent sealing performance, preventing leaks. Silicone rubber has significantly better heat resistance than ordinary rubber, remaining virtually unchanged at 150°C, and can be used continuously for 10,000 hours at 200°C. It can also be used for a period at 350°C. Widely used in applications requiring heat resistance, such as thermos flask sealing rings and heat-resistant handles for pressure cookers, silicone seals have an extremely wide range of applications and are very common in daily life. However, many existing silicone seals are designed as single-layer structures with uniform hardness, making them unsuitable for meeting diverse sealing requirements. Furthermore, the pressure resistance and resilience of existing silicone seals are poor.

[0003] To address the aforementioned issues, a high-strength multilayer silicone sealant is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a high-strength multilayer silicone seal to solve the problems mentioned in the background art, where many existing silicone seals are designed as single-layer structures with uniform hardness, which is not convenient to meet different sealing requirements, and the existing silicone seals have poor pressure resistance and resilience.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-strength multilayer silicone sealant, comprising a sealing inner ring, a sealing outer ring fixedly disposed on the surface of the sealing inner ring, an annular protrusion fixedly disposed at the bottom of the surface of the sealing outer ring, the annular protrusion being fixedly connected to the sealing inner ring, the sealing outer ring comprising a first base layer, a first elastic sleeve fixedly disposed on the inner side of the first base layer, a plurality of first elastic beads disposed inside the first elastic sleeve, a first elastic pad fixedly disposed on the inner side of the first base layer, the sealing inner ring comprising a second base layer, a second elastic sleeve fixedly disposed on the surface of the second base layer, a second elastic pad fixedly disposed on the surface of the second elastic sleeve, and a plurality of second elastic beads disposed inside the second elastic sleeve.

[0006] The seal consists of an inner sealing ring and an outer sealing ring. The inner sealing ring is made of low-hardness silicone, while the outer sealing ring is made of high-hardness silicone. Internal threads are provided on the inner side of the seal, and external threads are provided on the outer side, facilitating secure installation and meeting different sealing performance requirements. By providing a second elastic sleeve, a second elastic pad, and several second elastic beads on the surface of the inner sealing ring, and a first elastic sleeve, a first elastic pad, and several first elastic beads on the inner side of the outer sealing ring, the seal's pressure resistance and resilience are improved.

[0007] Preferably, the surface of the first base layer is provided with an anti-aging coating, which can improve the sealing performance of the silicone sealant.

[0008] Preferably, a plurality of annular grooves are provided at the connection between the inner sealing ring and the outer sealing ring, and a plurality of annular clips are fixedly provided at the connection between the outer sealing ring and the inner sealing ring. The plurality of annular clips are respectively engaged with the plurality of annular grooves. The limiting engagement of the plurality of annular clips with the plurality of annular grooves facilitates the initial connection between the inner sealing ring and the outer sealing ring.

[0009] Preferably, the sealing outer ring and the annular protrusion are an integral structure, which can ensure the overall structural strength.

[0010] Preferably, the inner side of the sealing inner ring is provided with an internal thread, which facilitates the installation of the silicone seal.

[0011] Preferably, the outer side of the sealing ring is provided with external threads, which facilitates the installation of the silicone seal.

[0012] Preferably, the inner sealing ring is made of 70-degree silicone and the outer sealing ring is made of 30-degree silicone. The 70-degree silicone has a lower hardness, while the 30-degree silicone has a higher hardness.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: The sealing element is composed of an inner sealing ring and an outer sealing ring. The inner sealing ring is made of silicone with a lower hardness of 70 degrees, and the outer sealing ring is made of silicone with a higher hardness of 30 degrees. An internal thread is provided on the inner side of the sealing element, and an external thread is provided on the outer side of the sealing element, which facilitates the secure installation of the sealing element and can meet the requirements of different sealing performance. By providing a second elastic sleeve, a second elastic pad, and several second elastic beads on the surface of the inner sealing ring, and a first elastic sleeve, a first elastic pad, and several first elastic beads on the inner side of the outer sealing ring, the pressure resistance and resilience performance of the sealing element can be improved. Attached Figure Description

[0014] Figure 1This is the first perspective view of the present invention;

[0015] Figure 2 This is a second perspective view of the present invention;

[0016] Figure 3 This is a front sectional view of the present invention;

[0017] Figure 4 This is a cross-sectional view of the sealing outer ring of this utility model;

[0018] Figure 5 This is a cross-sectional view of the sealing inner ring of this utility model.

[0019] In the diagram: 1. Inner sealing ring; 11. Second base layer; 12. Second elastic sleeve; 13. Second elastic bead; 14. Second elastic pad; 2. Outer sealing ring; 21. First base layer; 22. First elastic sleeve; 23. First elastic bead; 24. First elastic pad; 25. Anti-aging coating; 3. Annular protrusion; 4. External thread; 5. Internal thread; 6. Annular groove; 7. Annular retainer. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] Please see Figures 1-5 This utility model provides a high-strength multilayer silicone sealant, including a sealing inner ring 1, a sealing outer ring 2 fixedly disposed on the surface of the sealing inner ring 1, an annular protrusion 3 fixedly disposed on the bottom of the surface of the sealing outer ring 2, the annular protrusion 3 being fixedly connected to the sealing inner ring 1, the sealing outer ring 2 including a first base layer 21, a first elastic sleeve 22 fixedly disposed on the inner side of the first base layer 21, a plurality of first elastic beads 23 disposed inside the first elastic sleeve 22, a first elastic pad 24 fixedly disposed on the inner side of the first base layer 21, the sealing inner ring 1 including a second base layer 11, a second elastic sleeve 12 fixedly disposed on the surface of the second base layer 11, a second elastic pad 14 fixedly disposed on the surface of the second elastic sleeve 12, the second elastic sleeve 12... The seal is internally provided with several second elastic beads 13. The seal consists of an inner sealing ring 1 and an outer sealing ring 2. The inner sealing ring 1 is made of silicone with a lower hardness of 70 degrees, and the outer sealing ring 2 is made of silicone with a higher hardness of 30 degrees. The inner side of the seal is provided with an internal thread 5, and the outer side of the seal is provided with an external thread 4, which facilitates the secure installation of the seal and can meet the requirements of different sealing performance. By providing a second elastic sleeve 12, a second elastic pad 14 and several second elastic beads 13 on the surface of the inner sealing ring 1, and a first elastic sleeve 22, a first elastic pad 24 and several first elastic beads 23 on the inner side of the outer sealing ring 2, the pressure resistance and resilience of the seal can be improved.

[0022] The surface of the first base layer 21 is provided with an anti-aging coating 25. Several annular grooves 6 are provided at the connection between the sealing inner ring 1 and the sealing outer ring 2. Several annular clips 7 are fixedly provided at the connection between the sealing outer ring 2 and the sealing inner ring 1. Several annular clips 7 are respectively engaged and connected with several annular grooves 6. The sealing outer ring 2 and the annular protrusion 3 are an integral structure.

[0023] In use, the anti-aging coating 25 can improve the sealing performance of the silicone seal. The locking engagement of several annular clips 7 with several annular slots 6 facilitates the initial connection between the inner sealing ring 1 and the outer sealing ring 2.

[0024] The inner sealing ring 1 has an internal thread 5 on its inner side, and the outer sealing ring 2 has an external thread 4 on its outer side. The inner sealing ring 1 is made of 70-degree silicone, and the outer sealing ring 2 is made of 30-degree silicone.

[0025] When in use, the internal thread 5 facilitates the installation of the silicone seal, and the external thread 4 facilitates the installation of the silicone seal. 70-degree silicone has a lower hardness, while 30-degree silicone has a higher hardness.

[0026] In use, the seal in this embodiment consists of an inner sealing ring 1 and an outer sealing ring 2. The inner sealing ring 1 is made of silicone with a lower hardness of 70 degrees, and the outer sealing ring 2 is made of silicone with a higher hardness of 30 degrees. An internal thread 5 is provided on the inner side of the seal, and an external thread 4 is provided on the outer side of the seal, which facilitates the secure installation of the seal and can meet the requirements of different sealing performance. By providing a second elastic sleeve 12, a second elastic pad 14 and several second elastic beads 13 on the surface of the inner sealing ring 1, and a first elastic sleeve 22, a first elastic pad 24 and several first elastic beads 23 on the inner side of the outer sealing ring 2, the pressure resistance and resilience of the seal can be improved.

[0027] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-strength multilayer silicone seal, including a sealing inner ring (1), characterized in that: A sealing outer ring (2) is fixedly disposed on the surface of the sealing inner ring (1). An annular protrusion (3) is fixedly disposed on the bottom of the surface of the sealing outer ring (2). The annular protrusion (3) is fixedly connected to the sealing inner ring (1). The sealing outer ring (2) includes a first base layer (21). A first elastic sleeve (22) is fixedly disposed on the inner side of the first base layer (21). A plurality of first elastic beads (23) are disposed inside the first elastic sleeve (22). A first elastic pad (24) is fixedly disposed on the inner side of the first base layer (21). The sealing inner ring (1) includes a second base layer (11). A second elastic sleeve (12) is fixedly disposed on the surface of the second base layer (11). A second elastic pad (14) is fixedly disposed on the surface of the second elastic sleeve (12). A plurality of second elastic beads (13) are disposed inside the second elastic sleeve (12).

2. The high-strength multilayer silicone sealant according to claim 1, characterized in that: The surface of the first base layer (21) is provided with an anti-aging coating (25).

3. The high-strength multilayer silicone sealant according to claim 1, characterized in that: Several annular slots (6) are provided at the connection between the inner sealing ring (1) and the outer sealing ring (2). Several annular clips (7) are fixedly provided at the connection between the outer sealing ring (2) and the inner sealing ring (1). Several annular clips (7) are respectively engaged with several annular slots (6).

4. The high-strength multilayer silicone sealant according to claim 1, characterized in that: The sealing outer ring (2) and the annular protrusion (3) are an integral structure.

5. The high-strength multilayer silicone sealant according to claim 1, characterized in that: The inner side of the sealing inner ring (1) is provided with an internal thread (5).

6. The high-strength multilayer silicone sealant according to claim 1, characterized in that: The outer side of the sealing outer ring (2) is provided with an external thread (4).

7. The high-strength multilayer silicone sealant according to claim 1, characterized in that: The inner sealing ring (1) is made of 70-degree silicone, and the outer sealing ring (2) is made of 30-degree silicone.