A high pressure resistant pipe fitting seal

Abstract

The utility model relates to the technical field of pipe fittings, especially to a high-pressure-resistant pipe fitting sealing element, which comprises two long sealing strips, the inside of the sealing strip is provided with a hollow cavity, the hollow cavity penetrates through both ends of the sealing strip, and connecting ribs are fixed between the two sealing strips, the connecting ribs are integrally formed with the two sealing strips, and the connecting ribs extend from one end of the sealing strip to the other end, the sealing element formed by the two sealing strips and the connecting ribs has double sealing performance, better sealing performance, and reduced leakage; the setting of the connecting ribs can strengthen the strength of the sealing element, increase the compression rate, and avoid the defect that the sealing element is not easy to restore under the condition of large deformation; the setting of the hollow cavity can enhance the elasticity of the sealing element, tolerate large-area deformation of the sealing element, increase the compression rate, control the deformation of the sealing element under pressure, reduce the material usage, and reduce carbon emission to protect the environment.

Description

Technical Field

[0001] This utility model relates to the field of pipe fittings technology, and in particular to a high-pressure resistant pipe sealing component. Background Technology

[0002] Sealing elements are widely used in the stainless steel pipe fitting industry, typically installed between two contact surfaces to provide a seal. Patent application CN202421026120.4 discloses a sealing ring; however, this sealing ring has the following drawbacks when sealing the connection between two pipe fittings: poor sealing performance, accelerated compression aging due to the sealing method, faster decline in sealing elasticity and permanent deformation, and susceptibility to negative pressure cavitation, leading to leakage at the seal. Therefore, there is an urgent need for a pipe fitting seal that can enhance sealing performance, reduce compression aging and permanent deformation rates, and prevent cavitation. Utility Model Content

[0003] (a) Technical problems to be solved To address the shortcomings of existing technologies, the present invention aims to provide a high-pressure resistant pipe fitting seal, which solves the problems existing in the prior art. This structure reduces compression aging and extends the product's service life. The hollow seal reduces material usage, reduces carbon emissions, and plays a good role in protecting the environment. It also reduces the permanent deformation rate, enhances sealing performance, and provides timely air compensation to the pipeline system when negative pressure is generated, thus avoiding cavitation.

[0004] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a high-pressure resistant pipe sealing component, comprising two long strip-shaped sealing strips, each sealing strip having a hollow cavity inside, the hollow cavity penetrating both ends of the sealing strip, and a connecting rib fixed between the two sealing strips, the connecting rib being integrally formed with the two sealing strips, and the connecting rib extending from one end of the sealing strip to the other end.

[0005] Preferably, the end face of the sealing strip at the same end and the end face of the connecting rib form a joint adhesive surface, and the joint adhesive surface is set to be inclined.

[0006] Preferably, the inner wall of the sealing strip has several grooves evenly distributed, and the grooves are not connected to the hollow cavity.

[0007] Preferably, the groove is set to be arc-shaped.

[0008] Preferably, the cross-section of the hollow cavity is circular, elliptical, or polygonal.

[0009] Preferably, the sealing strip has a cylindrical structure.

[0010] (III) Beneficial Effects 1. This utility model provides a dual-seal performance by using a sealing element formed by two sealing strips and connecting ribs, resulting in better sealing performance and reduced leakage. Furthermore, the connecting ribs enhance the strength of the sealing element, increase the compressibility, and prevent the sealing element from being difficult to restore under large deformation. The hollow cavity design enhances the elasticity of the sealing element, tolerates large-area deformation, increases the compressibility, controls deformation under pressure, reduces material usage, and lowers carbon emissions to protect the environment.

[0011] 2. By setting the bonding or welding surface of the connection to be inclined, this utility model can increase the contact area, increase friction, strengthen the bonding ability, and make the seal more stable.

[0012] 3. By setting the groove, this utility model ensures that after the sealing element is rolled into a circular structure and then connected by pasting or welding, the groove is tightly attached to the outer wall of the pipe, which can improve the sealing performance of the sealing element and eliminate noise generated during negative pressure and pressure relief. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall design of this utility model.

[0014] Figure 2 This is a schematic diagram of the bonding surface of this utility model.

[0015] Figure 3 This is a cross-sectional schematic diagram of the groove of this utility model.

[0016] In the diagram: 1-Sealing strip, 2-Hollow cavity, 3-Connecting rib, 4-Jointing adhesive surface, 5-Groove. Detailed Implementation

[0017] The following will refer to the appendix in the embodiments of this utility model. Figure 1-3 The technical solutions in the embodiments of this utility model are clearly and completely described. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0018] This utility model provides a technical solution: a high-pressure resistant pipe sealing element, see reference. Figure 1The system includes two elongated sealing strips 1, each with a hollow cavity 2 extending through both ends. A connecting rib 3 is fixed between the two sealing strips 1, integrally formed with the two sealing strips 1 and extending from one end of the sealing strip 1 to the other. The elongated sealing strips 1 and the connecting rib 3 are made of elastic materials, including but not limited to rubber, polytetrafluoroethylene rubber (ethylene), polyurethane rubber, silicone rubber, and fluororubber. When assembling with pipe fittings, a section of the required length is cut from the elongated sealing element using a tool, and the end face of the sealing strip 1 and the end face of the connecting rib 3 at the same end form a bonding surface 4. The bonding surface 4 is inclined, and the sealing element is bonded and fused together through the bonding surfaces 4 at both ends to form a ring-shaped structure for the pipe fitting to pass through. The ring-shaped sealing element is then installed into the corresponding position on the pipe fitting. The bonding surface 4 can also be a welding surface, and the connection can be achieved by welding. The seal formed by the two sealing strips 1 and the connecting ribs 3 has dual sealing performance, achieving better sealing performance and reducing leakage. Furthermore, the connecting ribs 3 enhance the strength of the seal, increase the compressibility, and prevent the seal from being difficult to restore under large deformation. The inclined bonding surface 4 increases the contact area, friction, and bonding strength, resulting in better seal stability. The hollow cavity 2 enhances the elasticity of the seal, tolerates large-area deformation, increases the compressibility, controls deformation under pressure, reduces material usage, and lowers carbon emissions, protecting the environment. In this embodiment, when negative pressure is generated, the presence of the hollow cavity 2 causes the seal to shift, allowing air to compensate, thus preventing cavitation and protecting the seal itself. Compared to traditional solid sealing structures, which age quickly and have poor elasticity, the sealing strips 1 of this application are freely deformable, age slowly, and have better elasticity.

[0019] Several grooves 5 are evenly distributed on the inner wall of the sealing strip 1. The grooves 5 are not connected to the hollow cavity 2. After the sealing element is rolled into a ring-shaped structure, the grooves 5 are tightly attached to the outer wall of the pipe, which can make the sealing element have better sealing performance and eliminate noise generated during negative pressure and pressure relief.

[0020] The groove 5 is designed to be arc-shaped. This arc-shaped design enhances the adhesion between the sealing strip 1 and the outer wall of the pipe, further improving the sealing effect.

[0021] The cross-section of the hollow cavity 2 is circular, elliptical, or polygonal.

[0022] The sealing strip 1 has a cylindrical structure.

[0023] Working Principle: During assembly with pipe fittings, a section of the required length is cut from the elongated sealing element using a cutting tool, according to actual needs. The end face of the sealing strip 1 and the end face of the connecting rib 3 at the same end form a bonding surface 4. The bonding surface 4 is set at an angle. The sealing element is bonded and fused together through the bonding surfaces 4 at both ends to form a ring-shaped structure for the pipe fitting to pass through. Then, the ring-shaped sealing element is installed in the corresponding position of the pipe fitting. The sealing element formed by the two sealing strips 1 and the connecting rib 3 has dual sealing performance, achieving better sealing performance and reducing leakage. Furthermore, the setting of the connecting rib 3 can strengthen the strength of the sealing element, increase the compression ratio, and avoid the defect that the sealing element is not easy to restore under large deformation. The angled bonding surface 4 can increase the contact area, increase friction, and strengthen the bonding ability, making the sealing element more stable. The hollow cavity 2 can enhance the elasticity of the sealing element, tolerate large-area deformation of the sealing element, increase the compression ratio, and control the deformation of the sealing element under pressure, reducing material usage, reducing carbon emissions, and protecting the environment. In this embodiment, when negative pressure is generated, the presence of the hollow cavity 2 causes the sealing displacement of the seal to be compensated by air, thus reducing the likelihood of cavitation and protecting the seal itself. Compared with traditional solid sealing structures, traditional structures age quickly and have poor elasticity. The sealing strip 1 of this application can deform freely, ages slowly, and has better elasticity.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-pressure resistant pipe fitting seal, characterized in that, It includes two long strip-shaped sealing strips (1), and the interior of each sealing strip (1) is provided with a hollow cavity (2). The hollow cavity (2) passes through both ends of the sealing strip (1). A connecting rib (3) is fixed between the two sealing strips (1). The connecting rib (3) is integrally formed with the two sealing strips (1), and the connecting rib (3) extends from one end of the sealing strip (1) to the other end.

2. The high-pressure resistant pipe fitting seal according to claim 1, characterized in that, The end face of the sealing strip (1) and the end face of the connecting rib (3) at the same end form a joint adhesive surface (4), and the joint adhesive surface (4) is set to be inclined.

3. The high-pressure resistant pipe fitting seal according to claim 1, characterized in that, The inner wall of the sealing strip (1) has several grooves (5) evenly distributed, and the grooves (5) are not connected to the hollow cavity (2).

4. A high-pressure resistant pipe fitting seal according to claim 3, characterized in that, The groove (5) is set to be arc-shaped.

5. A high-pressure resistant pipe fitting seal according to claim 1, characterized in that, The cross-section of the hollow cavity (2) is circular, elliptical, or polygonal.

6. A high-pressure resistant pipe fitting seal according to claim 1, characterized in that, The sealing strip (1) has a cylindrical structure.

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