Annular flange with embedded sealing ring

Abstract

The utility model discloses an annular flange with an embedded sealing ring, which belongs to the field of annular flange sealing rings and comprises a first flange body, a second flange body and an annular sealing ring arranged between the first flange body and the second flange body. The annular sealing ring is provided with at least two annular convex hulls, and the first flange body and the second flange body are correspondingly provided with at least two annular grooves; and the annular convex hulls are embedded into the annular grooves of the first flange body and the second flange body correspondingly. The compression amount of the sealing ring in the annular flange can be completely controlled, the sealing performance is guaranteed, and the service life is prolonged.

Description

Technical Field

[0001] The utility model belongs to the field of annular flange sealing, and in particular relates to an annular flange with an embedded sealing ring. Background Art

[0002] The existing annular flange sealing ring connection structure includes the flat sealing ring, annular flange, and bolts shown in the figure. The bolts apply pressure to the two annular flanges, causing the sealing ring to deform and seal. However, this approach has significant drawbacks: 1. The compression of the sealing ring is difficult to control. For example, for the sealing ring made of silicone, a compression of 25% is optimal to ensure sealing and longevity. Improper compression can shorten the lifespan by over 50%. 2. During assembly, the sealing ring moves between the flanges, causing uneven force or blocking portions of the flange inner diameter, increasing flow resistance.

[0003] In the prior art, China Patent Authorization Announcement No.: CN215522361U, Publication Date: January 14, 2022,

[0004] Disclosed is a flange structure with a sealing ring function, comprising a first pipe, and characterized in that: a first flange is fixed to the outer side of the first pipe, a first clamping groove is provided on the outer side of the first flange, a first sealing ring is provided on the inner side of the first clamping groove, a second clamping groove is provided on the outer side of the first sealing ring, a second flange is provided on the outer side of the first flange, a third clamping groove is provided on the outer side of the second flange, a second sealing ring is provided on the inner side of the third clamping groove, and a fixed clamping block is fixed to the outer side of the second sealing ring.

[0005] However, the above existing technologies have obvious deficiencies:

[0006] 1. When the bolts apply pressure to the flange body, it is easy to cause uneven force, resulting in large deformation of the sealing ring and reduced sealing effect.

[0007] 2. Since there is no limiting structure between the flange body and the sealing ring, the compression of the sealing ring is difficult to control, making the sealing ring prone to displacement and wrinkling, greatly shortening the service life of the sealing ring. Utility Model Content

[0008] The purpose of the present invention is to solve the above-mentioned problems of the prior art and to provide an annular flange with an embedded sealing ring, so as to improve the stability and service life of the sealing ring.

[0009] In order to achieve the above purpose, the technical solution adopted by the present utility model is as follows:

[0010] An annular flange with an embedded sealing ring is characterized in that it includes a first flange body, a second flange body and an annular sealing ring arranged between the first flange body and the second flange body; at least two annular bulges are provided on the annular sealing ring, and at least two annular grooves are correspondingly provided on the first flange body and the second flange body; the annular bulges are respectively embedded in the annular grooves of the first flange body and the second flange body.

[0011] There are two annular grooves on the first flange body and the second flange body, and two annular convex hulls on the annular sealing ring.

[0012] The annular grooves on the first flange body and the second flange body are hemispherical annular grooves.

[0013] The first flange body and the second flange body are completely identical in size and shape.

[0014] The first flange body and the second flange body are locked by screwing bolts into the bolt openings.

[0015] The annular convex hull is a spherical annular convex hull.

[0016] The annular grooves correspond to the annular convex hulls one by one.

[0017] When the annular flange is locked, the annular convex bumps are respectively embedded in the corresponding adapted annular grooves.

[0018] The annular sealing ring is a silicone annular sealing ring.

[0019] The advantages of adopting the utility model are:

[0020] 1. Compared with the prior art, the annular sealing ring in the utility model is limited by the annular convex bulge in the annular flange, so that the compression amount of the contact surface between the sealing ring and the flange body is completely controlled when the bolts are tightened, the deformation of the annular sealing ring is stable, the force is evenly distributed, and the sealing performance is enhanced.

[0021] Second, the sealing ring of the utility model is completely embedded in the annular groove in the annular flange through the annular convex package, so that the annular sealing ring does not move between the flange body and does not wrinkle, thereby extending the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the annular flange with an embedded sealing ring before installation of the utility model;

[0023] Figure 2 This is a schematic diagram of the annular flange with an embedded sealing ring after installation;

[0024] Figure 3 This is a schematic front view of an annular flange sealing ring with an embedded sealing ring according to the present invention;

[0025] Figure 4 It is a side view schematic diagram of an annular flange sealing ring with an embedded sealing ring according to the present invention.

[0026] Markings in the figure are: 1. first flange body, 2. first flange body, 3. annular sealing ring, 4. annular convex hull, 5. annular groove, 6. bolt mouth. DETAILED DESCRIPTION

[0027] Example 1

[0028] This embodiment further illustrates the structure and principle of the present invention with reference to the accompanying drawings:

[0029] A ring flange with an embedded sealing ring includes a first flange body 1, a second flange body 2 and an annular sealing ring 3 arranged between the first flange body 1 and the second flange body 2; the annular sealing ring 3 is provided with at least two annular bulges 4, and the first flange body 1 and the second flange body 2 are correspondingly provided with at least two annular grooves 5; the annular bulges 4 are respectively embedded in the annular grooves 5 of the first flange body 1 and the second flange body.

[0030] There are two annular grooves 5 on each of the first flange body 1 and the second flange body 2 , and two annular convex bumps 4 on the annular sealing ring 3 .

[0031] The annular grooves 5 on the first flange body 1 and the second flange body 2 are hemispherical annular grooves.

[0032] The first flange body 1 and the second flange body 2 are completely identical in size and shape.

[0033] The first flange body 1 and the second flange body are locked by screwing bolts into the bolt openings 6 .

[0034] The annular convex hull 4 is a spherical annular convex hull.

[0035] The annular groove 5 corresponds to the annular convex hull 4 one by one.

[0036] When the annular flange is locked, the annular convex bumps 4 are respectively embedded in the corresponding adapted annular grooves 5 .

[0037] The annular sealing ring 3 is a silicone annular sealing ring.

[0038] Example 2

[0039] like Figure 1 、 2As shown, an annular flange with an embedded sealing ring is shown, in which the first annular bulge of the outer ring of the annular sealing ring 3 is installed in the annular groove 5 at the first position of the outer layer of the first flange body 1. After complete fitting, the second annular bulge of the annular sealing ring 3 is passed through the position that has been determined for the first time and placed in the first flange body 1. Then, the outer groove of the second flange body 2 is correspondingly installed under the outer annular bulge 4 of the annular sealing ring 3, and through the positioning of the outer annular sealing ring 3, the inner annular groove 5 of the second flange body 2 is aligned with the inner annular bulge 4 of the annular sealing ring 3. After the two flange bodies are locked by screws, as the flange bodies fit together, the annular sealing ring 3 is deformed and pressed, thereby playing a sealing role.

[0040] There is a double semicircular sink structure on the contact surface between the annular flange body and the annular sealing ring 3. There are two such structures, corresponding to the two annular convex hulls 4 on the annular sealing ring 3. The size just matches and fits with the plane of the annular sealing ring 3 and the annular convex hull 4. When the two annular flange bodies clamp the embedded annular sealing ring 3, it is only necessary to completely lock the two annular flange bodies with bolts. The deformation and position of the annular sealing ring 3 are completely determined by the annular flange body. The compression amount of the annular sealing ring 3 in the annular flange body is completely controlled, ensuring the sealing performance. At the same time, the compression amount of the annular sealing ring 3 is stable and the service life is long; the annular sealing ring 3 is completely positioned in the annular flange, does not move, does not wrinkle, is easy and quick to operate, and has low requirements for installation personnel; the weight of the sealing ring of the same specification and model can be reduced by more than 50%, and the cost is significantly reduced.

Claims

1. An annular flange with an embedded sealing ring, characterized in that: The invention comprises a first flange body (1), a second flange body (2), and an annular sealing ring (3) arranged between the first flange body (1) and the second flange body (2); the annular sealing ring (3) is provided with at least two annular convex hulls (4); the first flange body (1) and the second flange body (2) are correspondingly provided with at least two annular grooves (5); the annular convex hulls (4) are respectively embedded in the annular grooves (5) of the first flange body (1) and the second flange body.

2. The annular flange with an embedded sealing ring according to claim 1, characterized in that: There are two annular grooves (5) on each of the first flange body (1) and the second flange body (2), and there are two annular convex hulls (4) on the annular sealing ring (3).

3. The annular flange with an embedded sealing ring according to claim 2, characterized in that: The annular grooves (5) on the first flange body (1) and the second flange body (2) are hemispherical annular grooves.

4. The annular flange with an embedded sealing ring according to claim 1, characterized in that: The first flange body (1) and the second flange body (2) are completely identical in size and shape.

5. The annular flange with an embedded sealing ring according to claim 1, characterized in that: The first flange body (1) and the second flange body are locked by screwing bolts into the bolt openings (6).

6. The annular flange with an embedded sealing ring according to claim 3, characterized in that: The annular convex hull (4) is a spherical annular convex hull.

7. The annular flange with an embedded sealing ring according to claim 1, characterized in that: The annular groove (5) corresponds one to one with the annular convex hull (4).

8. The annular flange with an embedded sealing ring according to claim 1, characterized in that: When the annular flange is locked, the annular convex bumps (4) are respectively embedded in the corresponding adapted annular grooves (5).

9. The annular flange with an embedded sealing ring according to claim 1, characterized in that: The annular sealing ring (3) is a silicone annular sealing ring.

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