Rubber sealing ring for flange pipeline joint
By designing a highly elastic and wear-resistant rubber sealing ring, the problems of complex installation and poor sealing effect of traditional sealing rings have been solved, achieving rapid installation and excellent sealing performance, and extending service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-03
- Publication Date
- 2026-04-07
AI Technical Summary
Traditional sealing rings are complex to install in flange pipe joints, have unsatisfactory sealing effects, are prone to wear, and affect their service life.
A rubber sealing ring was designed, comprising a fixed mounting part, a connecting positioning part, a sealing lip, and a joint sealing layer. It is made of highly elastic and wear-resistant material, and the fixed hole facilitates quick installation. The fixed mounting part matches the inner diameter of the flange pipe.
It achieves rapid installation and excellent sealing performance, extending service life.
Smart Images

Figure CN224094019U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sealing ring technology, specifically a rubber sealing ring for flange pipe joints. Background Technology
[0002] In existing flange pipe joints, the design of the sealing ring is crucial to the system's sealing performance. Traditional sealing rings often suffer from problems such as complex installation, unsatisfactory sealing effect, and easy wear. Therefore, developing a new type of rubber sealing ring to improve the sealing performance and service life of flange pipe joints is of significant practical importance. Utility Model Content
[0003] The technical problem solved by this utility model is to provide a rubber sealing ring for flange pipe joints, so as to solve the problems mentioned in the background art.
[0004] The technical problem solved by this utility model is achieved by the following technical solution: a rubber sealing ring for flange pipe joints, comprising: a rubber sealing ring body, a fixed installation part in the middle of the rubber sealing ring body, a connecting positioning part on both sides of the fixed installation part, a plurality of sealing lips on the outer side of the connecting positioning part, the plurality of sealing lips being arranged in parallel between each other, and a joint sealing layer at the outer end of the connecting positioning part.
[0005] Furthermore, the fixed mounting part is provided with a plurality of fixing holes, which are evenly distributed in concentric circles on the fixed mounting part.
[0006] Furthermore, the outer diameter of the fixed mounting part is the same as the inner diameter of the flange pipe, and the fixed mounting part extends into the interior of the flange pipe.
[0007] Furthermore, the fixed mounting part is provided with an arc-shaped mounting guide on the inner and outer sides of its outer end.
[0008] Compared with the prior art, the beneficial effects of this utility model are: the rubber sealing ring of this utility model can achieve quick installation and fixation, while providing excellent sealing performance and extending service life. Attached Figure Description
[0009] Figure 1 This is a schematic diagram of the structure of this utility model.
[0010] Figure 2 for Figure 1 A sectional view along line AA.
[0011] Figure 3 This is a top view schematic diagram of the present invention. Detailed Implementation
[0012] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection" and "connection" should be interpreted broadly. For example, they can be fixed connections, detachable connections, or integral connections; they can be mechanical connections or electrical connections; they can be direct connections or indirect connections through an intermediate medium; and they can be internal connections between two components.
[0013] Example 1
[0014] like Figures 1-3 As shown, a rubber sealing ring for flange pipe joints includes: a rubber sealing ring body 1, a fixed mounting part 2 in the middle of the rubber sealing ring body 1, connecting positioning parts on both sides of the fixed mounting part 2, a plurality of sealing lips 3 on the outer side of the connecting positioning parts, the plurality of sealing lips 3 being arranged parallel to each other, and a joint sealing layer 4 at the outer end of the connecting positioning parts. The fixed mounting part 2 has a plurality of fixing holes 5, which are evenly distributed in concentric circles on the fixed mounting part 2.
[0015] Example 2
[0016] like Figures 1-3 As shown, a rubber sealing ring for a flange pipe joint includes: a rubber sealing ring body 1, a fixing installation part 2 in the middle of the rubber sealing ring body 1, connecting positioning parts on both sides of the fixing installation part 2, a plurality of sealing lips 3 on the outer side of the connecting positioning parts, the plurality of sealing lips 3 being arranged parallel to each other, and a joint sealing layer 4 at the outer end of the connecting positioning parts. The outer diameter of the fixing installation part 2 is the same as the inner diameter of the flange pipe, and the fixing installation part 2 extends into the interior of the flange pipe.
[0017] Example 3
[0018] like Figures 1-3 As shown, a rubber sealing ring for flange pipe joints includes: a rubber sealing ring body 1, a fixed mounting part 2 in the middle of the rubber sealing ring body 1, connecting positioning parts on both sides of the fixed mounting part 2, a plurality of sealing lips 3 on the outer side of the connecting positioning parts, the plurality of sealing lips 3 being arranged in parallel, and a joint sealing layer 4 at the outer end of the connecting positioning parts. An arc-shaped guide part is provided on the inner and outer sides of the outer end of the fixed mounting part 2.
[0019] During installation, first align the outer diameter D1 of the sealing ring with the inner diameter of the flange pipe. Then, fix the sealing ring to the flange through the fixing hole, ensuring a tight seal between the sealing lips. Through a special structural design and material selection, it solves the problems of complex installation, poor sealing effect, and easy wear in existing sealing ring technologies, and has broad application prospects. The rubber sealing ring is made of highly elastic, wear-resistant, and corrosion-resistant rubber material. The fixing hole design facilitates quick installation and fixing, reducing installation time and operational difficulty, and is used for rapid installation and fixation of the sealing ring.
[0020] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A rubber sealing ring for flange pipe joints, comprising: The rubber sealing ring body (1) is characterized in that: a fixed installation part (2) is provided in the middle of the rubber sealing ring body (1), a connecting positioning part is provided on the rubber sealing ring body (1) on both sides of the fixed installation part (2), a plurality of sealing lips (3) are provided on the outer side of the connecting positioning part, the plurality of sealing lips (3) are arranged in parallel between each other, and a joint sealing layer (4) is provided at the outer end of the connecting positioning part.
2. A rubber sealing ring for flange pipe joints according to claim 1, characterized in that: The fixed mounting part (2) is provided with a plurality of fixing holes (5), which are evenly distributed in concentric circles on the fixed mounting part (2).
3. A rubber sealing ring for flange pipe joints according to claim 1, characterized in that: The outer diameter of the fixed mounting part (2) is the same as the inner diameter of the flange pipe, and the fixed mounting part (2) extends into the interior of the flange pipe.
4. A rubber sealing ring for flange pipe joints according to claim 1, characterized in that: The fixed mounting part (2) has an arc-shaped guide on the inner and outer sides of its outer end.