Leak-proof sealing structure

Abstract

The utility model relates to a leakproof sealing structure, which belongs to the technical field of resin sealing, and comprises a sealing sleeve body, an external annular bulge is arranged on the outer surface of the end part of the sealing sleeve body, which is used for being inserted into an external component, and an anti-retraction support rib is arranged on the inner side of the end part. The sealing device can achieve the efficient and reliable sealing effect, is suitable for static sealing and dynamic sealing, and can keep stable sealing performance under various working conditions.

Description

Technical Field

[0001] This utility model relates to an improved leak-proof sealing structure, belonging to the field of resin sealing technology. Background Technology

[0002] Sealing technology plays a crucial role in modern industrial production and daily life, especially in situations where preventing liquid or gas leaks is necessary. Traditional resin sealing technologies, such as silicone or rubber seals, while effective in many applications, can suffer from compromised sealing performance under specific structural conditions or extreme environments, leading to leakage problems.

[0003] Currently, resin sealing technologies on the market primarily rely on physical contact to achieve sealing, such as compression or interference fits to ensure tight contact between the seal and the sealed surface. While this method can provide a good seal under ideal conditions, in practice, due to structural specifics, or factors such as material aging, temperature changes, and pressure fluctuations, poor contact between the seal and the sealed surface may occur, leading to leakage and affecting the sealing performance. Utility Model Content

[0004] The technical problem to be solved by this utility model is: an improved leak-proof sealing structure that can achieve a reliable leak-proof sealing effect even under special circumstances.

[0005] To achieve the above objectives, the present invention provides a leak-proof sealing structure, including a sealing sleeve body. The sealing sleeve body has an external annular protrusion on the outer surface of the end for inserting an external component, and an anti-retraction support rib on the inner side of the end.

[0006] Preferably, there are two external annular protrusions on the same end.

[0007] Preferably, the two outer annular protrusions are spaced apart.

[0008] Preferably, the anti-retraction support rib is located between two opposite sidewalls on the inner side of the end.

[0009] Preferably, the anti-retraction support rib extends further and fits against the inner sidewall of the end.

[0010] Preferably, the anti-retraction support rib has an axial length along the center of the sealing sleeve body that is greater than or equal to the length of the end of the sealing sleeve body used for inserting the external component.

[0011] Preferably, the sealing sleeve body is made of silicone or rubber.

[0012] Preferably, the sealing sleeve body is made with a Shore hardness of 60±5HA / HD.

[0013] In summary, this utility model has the following beneficial technical effects:

[0014] This invention achieves a highly efficient and reliable sealing effect through a meticulously designed sealing sleeve body, an outer annular protrusion, and an internal anti-retraction support rib. This structure is suitable not only for static sealing but also for dynamic sealing, maintaining stable sealing performance under various operating conditions. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the leak-proof sealing structure of this utility model applied to the external body and external components;

[0016] Figure 2 This is a front view of a leak-proof sealing structure according to the present invention;

[0017] Figure 3 This is a side view of a leak-proof sealing structure according to the present invention;

[0018] Figure 4 This is a top view of a leak-proof sealing structure according to the present invention;

[0019] Figure 5 This is a cross-sectional view of a leak-proof sealing structure according to the present invention.

[0020] Figure 6 This is a perspective view of a leak-proof sealing structure according to the present invention;

[0021] Figure 7 This is a perspective view of another angle of the leak-proof sealing structure of this utility model.

[0022] Reference numerals: 1. Sealing sleeve body; 2. External component; 3. External body; 4. External annular protrusion; 5. Anti-retraction support rib. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] This utility model discloses a leak-proof sealing structure used in an insertion-type sealing structure, comprising a sealing sleeve body 1, an outer annular protrusion 4, and an anti-retraction support rib 5. The sealing sleeve body 1 is made of silicone or rubber with a Shore hardness of 60±5HA / HD, enabling the sealing sleeve to achieve a certain supporting force. The outer annular protrusion 4 allows for an interference fit between the inner sealing sleeve body 1 and the outer component 2, thereby achieving a sealing effect. The inner anti-retraction support rib 5 prevents leakage when the sealing sleeve body 1 is inserted into the outer component 2, as the interference fit caused by the outer annular protrusion 4 forces the sealing sleeve to bend inward and retract, creating a gap.

[0025] This utility model features an ingenious structural design that effectively prevents liquid or gas leakage, making it suitable for various industrial and everyday applications. Details are as follows:

[0026] Sealing sleeve body 1: The sealing sleeve body 1 is the core component of this utility model, and its material selection is crucial. This design uses silicone or rubber as the material for the sealing sleeve body 1, both of which are widely used due to their excellent elasticity and wear resistance. To ensure that the sealing sleeve body 1 has both good elasticity and sufficient support, its manufacturing hardness is precisely controlled within a Shore hardness of 60±5HA / HD. This hardness range allows the sealing sleeve to maintain its shape under pressure while also adapting to external components 2 of different shapes, ensuring a sealing effect.

[0027] External annular protrusion 4: The external annular protrusion 4 is a key design feature on the sealing sleeve body 1. It is located on the outside of the sealing sleeve and consists of two protrusions spaced vertically. This protrusion design allows the sealing sleeve body 1 to form an interference fit with the external component 2, meaning the size of the sealing sleeve body 1 is slightly larger than the inner diameter of the external component 2. This generates a certain pressure during assembly, ensuring there are no gaps between them and achieving a seal. This interference fit not only improves the sealing performance but also resists external pressure to a certain extent, preventing the sealing sleeve body 1 from shifting under high pressure.

[0028] Internal anti-retraction support rib 5: The internal anti-retraction support rib 5 is another innovation of this utility model. It fits the inner sidewall of the end of the sealing sleeve body 1, and the length of the anti-retraction support rib 5 along the central axis of the sealing sleeve body 1 is greater than or equal to the length of the end of the sealing sleeve body 1 used for inserting the external component 2. During the process of inserting the sealing sleeve body 1 into the external component 2, due to the action of the external annular protrusion 4, the sealing sleeve body 1 will be subjected to an outward pushing force, which may cause the sealing sleeve body 1 to bend and retract inward, thereby forming a gap between the sealing sleeve body 1 and the external component 2, causing leakage. In order to solve this problem, the internal anti-retraction support rib 5 is designed to resist this retraction force, maintain the shape and position of the sealing sleeve body 1, and avoid leakage caused by retraction.

[0029] In summary, this improved leak-proof sealing structure achieves a highly efficient and reliable sealing effect through its carefully designed sealing sleeve body 1, external annular protrusion 4, and internal anti-retraction support rib 5. This structure is suitable for both static and dynamic sealing, maintaining stable sealing performance under various operating conditions.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A leak-proof sealing structure, characterized in that, It includes a sealing sleeve body (1), which has an external annular protrusion (4) on the outer surface of the end for inserting the external component (2), and an anti-retraction support rib (5) on the inner side of the end.

2. The leak-proof sealing structure according to claim 1, characterized in that, The external annular protrusion (4) on the same end is provided as two.

3. The leak-proof sealing structure according to claim 2, characterized in that, The two external annular protrusions (4) are spaced apart.

4. The leak-proof sealing structure according to claim 1, characterized in that, The anti-retraction support rib (5) is located between two opposite sidewalls on the inner side of the end.

5. The leak-proof sealing structure according to claim 4, characterized in that, The anti-retraction support rib (5) extends and fits the inner sidewall of the end.

6. The leak-proof sealing structure according to claim 4, characterized in that, The anti-retraction support rib (5) has an axial length along the center of the sealing sleeve body (1) that is greater than or equal to the length of the end of the sealing sleeve body (1) used to insert the external component (2).

7. The leak-proof sealing structure according to claim 1, characterized in that, The sealing sleeve body (1) is made of silicone or rubber.

8. The leak-proof sealing structure according to claim 7, characterized in that, The sealing sleeve body (1) is made with a Shore hardness of 60±5HA / HD.

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