Combined sealing flange

Abstract

The utility model discloses a combined sealing flange, which relates to the technical field of flange combination, aims to solve the technical problems that the sealing performance of two connected flanges is influenced and leakage is easily caused by the influence of the vibration of a pipeline at present, and comprises a first flange main body and a second flange main body, connecting grooves are formed in the opposite faces of the first flange body and the second flange body, a sealing part is connected between the connecting grooves in the two sides in a clamped mode, and the sealing part is arranged in one connecting groove through a sealing piece with a plurality of first arc-shaped faces and a plurality of second arc-shaped faces and abuts against the other connecting groove in the assembling process. The first flange body and the second flange body are sealed when being extruded, and gaps in the connecting grooves are filled with the first clamping corners and the second clamping corners when being extruded. The utility model has the advantages that the installation position of the sealing element is stable, the sealing element is not easy to fall off in the assembly process, the position can be kept fixed during fixed combination, and the connection sealing performance is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flange combination, and more specifically to a combined sealing flange. Background Art

[0002] Combined sealing flange is a highly efficient sealing joint formed by a combination of multiple sealing methods or materials. This flange takes advantage of the advantages of different sealing materials and designs to improve sealing performance and application flexibility.

[0003] When assembling existing combined sealing flanges, a sealing structure is usually set between the two flanges. The sealing structure is generally an annular sealing gasket, which is fixed in position by an annular groove on the flange. The ring shape lacks a limiting effect, and there is a risk of deviation and falling off during the assembly process, which affects the sealing of the flange assembly. In view of this, we propose a combined sealing flange. Utility Model Content

[0004] The utility model aims to overcome the deficiencies of the prior art, meet practical needs, and provide a combined sealing flange to solve the current technical problem of affecting the sealing of two flanges after connection and being easily affected by the vibration of the pipeline itself and causing leakage.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a combined sealing flange, comprising a first flange body and a second flange body, wherein the first flange body and the second flange body are both provided with connecting grooves on the facing surfaces, and a sealing portion is clamped and connected between the connecting grooves on both sides, and the connecting groove and the sealing portion have the same shape;

[0006] The sealing part comprises a sealing member, wherein a plurality of first arcuate surfaces are arranged in an annular array on the inner side surface of the sealing member, and a first clamping angle is formed integrally between two adjacent first arcuate surfaces, and a plurality of second arcuate surfaces are arranged in an annular array on the outer side surface of the sealing member, and a second clamping angle is formed integrally between two adjacent second arcuate surfaces;

[0007] A plurality of the first arc-shaped surfaces and a plurality of the second arc-shaped surfaces are arranged alternately, and a plurality of the first clamping angles and a plurality of the second clamping angles are distributed in the connecting groove in a circular array.

[0008] A sealing member having a plurality of first arcuate surfaces and a plurality of second arcuate surfaces is arranged in a connecting groove and is pressed into another connecting groove during assembly. The sealing between the first flange body and the second flange body is achieved by being squeezed. When being squeezed, the plurality of first clamping angles and the plurality of second clamping angles fill the gap in the connecting groove. When vibrated, the vibration can be absorbed, thereby achieving an energy-absorbing effect, ensuring the sealing of the two flanges after connection, and avoiding the problem of leakage caused by the vibration of the pipeline itself.

[0009] Preferably, a sealing ring is centrally disposed on the plurality of first arc-shaped surfaces and the plurality of first positioning angles, and the shape of the outer surface of the sealing ring is consistent with the plurality of first arc-shaped surfaces and the plurality of first positioning angles.

[0010] Preferably, a cavity is provided inside the sealing member, and an elastic ring is arranged in the cavity, and the cross section of the elastic ring is honeycomb-shaped.

[0011] Preferably, a hollow cavity is provided inside the sealing ring, and the cross-sectional shape of the sealing ring is circular.

[0012] Preferably, the thickness of the sealing portion is greater than the sum of the depths of the two connecting grooves, and there is an interference fit between the sealing portion and the two connecting grooves.

[0013] Preferably, one side of the first flange body and the second flange body are provided with a plurality of through holes in a circular array, and connecting sleeves are fixedly provided in the plurality of through holes provided on the first flange body, and the connecting sleeves are inserted into the corresponding through holes provided on the second flange body.

[0014] Preferably, an annular groove is provided on the outer wall of the side end of the connecting sleeve, and the groove surface of the annular groove is an arc surface.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. A sealing member having a plurality of first arcuate surfaces and a plurality of second arcuate surfaces is arranged in a connecting groove, and is pressed into another connecting groove during assembly, so as to realize sealing between the first flange body and the second flange body under compression, and when under compression, the plurality of first clamping angles and the plurality of second clamping angles fill the gap in the connecting groove, and when vibrated, the vibration can be absorbed, so as to achieve the effect of energy absorption, thereby ensuring the sealing of the two flanges after connection, and avoiding the problem of leakage caused by the vibration of the pipeline itself.

[0017] 2. The utility model also designs a sealing ring structure that can be squeezed and contracted when the first flange body and the second flange body are combined to achieve the effect of filling the connection gap. The design of the internal hollow cavity can increase the compression space and improve the elasticity of the sealing ring. The cavity groove composed of hexagonal holes inside the seal can improve the overall elasticity, facilitate deformation when squeezed, strengthen the fit between the connection groove, and further enhance the assembly sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the exploded structure of the utility model;

[0020] Figure 3 It is a schematic diagram of the local structure of the utility model;

[0021] Figure 4 It is a partial structural decomposition schematic diagram of the utility model;

[0022] Figure 5 It is a schematic diagram of the partial structure of the utility model;

[0023] Figure 6 It is an enlarged schematic diagram of the structure of part A in the utility model.

[0024] Explanation of the numbers in the figure: 1. first flange body; 101. connecting sleeve; 102. annular groove; 2. second flange body; 3. connecting groove; 4. sealing part; 401. sealing member; 402. first arcuate surface; 403. second arcuate surface; 404. first positioning angle; 405. second positioning angle; 406. cavity groove; 5. sealing ring; 501. hollow cavity. DETAILED DESCRIPTION

[0025] like Figures 1 to 6 As shown, the utility model relates to a combined sealing flange, including a first flange body 1 and a second flange body 2, the first flange body 1 and the second flange body 2 are provided with connecting grooves 3 on the facing surfaces, a sealing portion 4 is clamped and connected between the connecting grooves 3 on both sides, and the connecting grooves 3 and the sealing portion 4 have the same shape; by setting the connecting grooves 3 on both sides, the installation position of the sealing portion 4 can be fixed, thereby improving the sealing performance of the combination between the first flange body 1 and the second flange body 2.

[0026] The sealing portion 4 includes a sealing member 401, wherein a plurality of first arcuate surfaces 402 connected in a circular array are arranged on the inner side surface of the sealing member 401, and a first positioning angle 404 is integrally formed between two adjacent first arcuate surfaces 402; and a plurality of second arcuate surfaces 403 connected in a circular array are arranged on the outer side surface of the sealing member 401, and a second positioning angle 405 is integrally formed between two adjacent second arcuate surfaces 403; the first positioning angle 404 and the second positioning angle 405 formed by the cooperation between the plurality of first arcuate surfaces 402 and the second arcuate surfaces 403 can form a limiting angle when combined with the connecting groove 3, and when squeezed, the plurality of first positioning angles 404 and the plurality of second positioning angles 405 fill the gap in the connecting groove 3, and can absorb vibration when vibrated, thereby achieving an energy absorbing effect and ensuring the sealing performance after the two flanges are connected.

[0027] A plurality of first arcuate surfaces 402 and a plurality of second arcuate surfaces 403 are arranged alternately, and a plurality of first positioning angles 404 and a plurality of second positioning angles 405 are distributed in a circular array in the connecting groove 3; the staggered arrangement can improve the compression surface, and the multiple arrangements can increase the extrusion force range and enhance the stability of the installation position.

[0028] In an embodiment of the utility model, a sealing ring 5 is centrally arranged on the plurality of first arcuate surfaces 402 and the plurality of first clamping angles 404, and the outer surface shape of the sealing ring 5 is consistent with the plurality of first arcuate surfaces 402 and the plurality of first clamping angles 404; the arrangement of the sealing ring 5 can increase the sealing performance at the junction of the sealing portion 4 and the connecting grooves 3 on both sides.

[0029] In an embodiment of the utility model, a cavity 406 is opened inside the seal 401, and an elastic ring is arranged in the cavity 406, and the cross-section of the elastic ring is honeycomb-shaped; the arrangement of the cavity 406 can improve the deformation effect of the seal 401 when under pressure, and the honeycomb-shaped elastic ring can maintain good pressure resistance, so that the elastic support of the seal 401 remains stable when squeezed.

[0030] In the embodiment of the utility model, a hollow cavity 501 is provided inside the sealing ring 5, and the cross-sectional shape of the sealing ring 5 is circular; the setting of the hollow cavity 501 can increase the shrinkage range of the sealing ring 5 and enhance the fit between the two flange sides.

[0031] In an embodiment of the utility model, the thickness of the sealing part 4 is greater than the sum of the depths of the two connecting grooves 3, and the sealing part 4 and the two connecting grooves 3 are interference fit; the interference fit has a certain extrusion space, which is convenient for the sealing part 4 to shrink and deform, and after extrusion, the tightness of the connection with the flange can be strengthened.

[0032] In an embodiment of the utility model, a plurality of through holes are provided in a circular array on one side of the first flange body 1 and the second flange body 2, and connecting sleeves 101 are fixedly provided in the plurality of through holes provided on the first flange body 1, and the connecting sleeves 101 are inserted into corresponding through holes provided on the second flange body 2; the setting of the connecting sleeves 101 can achieve a positioning connection effect when the two flanges are combined, and it is not easy to have deviations during the assembly process, thereby improving the effect of alignment connection.

[0033] In an embodiment of the utility model, an annular groove 102 is provided on the outer wall of the side end of the connecting sleeve 101, and the groove surface of the annular groove 102 is an arc surface; the setting of the annular groove 102 can reduce the diameter of the side end of the connecting sleeve 101, making it easy to insert it into the through hole of the second flange body 2, thereby facilitating the docking operation.

[0034] Working principle: This embodiment provides a combined sealing flange. When assembling and connecting the first flange body 1 and the second flange body 2, the sealing part 4 is first placed in the connecting groove 3 on the side wall of the first flange body 1. The first positioning angle 404 and the second positioning angle 405 are combined with the convex angle in the connecting groove 3 to increase the limiting effect, so that after the sealing part 4 is installed in the connecting groove 3, the stability of the position can be improved and it is not easy to fall off. Then the first flange body 1 and the second flange body 2 are docked, and the connecting sleeve 101 can be inserted into the through hole on the second flange body 2 to locate the combined position, so that the position can be kept aligned during docking, so that the sealing part 4 on the first flange body 1 can be aligned and combined with the connecting groove 3 on the second flange body 2, and it is not easy to deviate. After the docking is completed, the positions of the two flanges can be fixed by passing the bolts through the connecting sleeve 101 and combining with the nuts, so that the sealing connection operation can be completed. Through such structural coordination, the probability of the sealing part 4 offset and falling off can be reduced, the convenience of assembly is improved, and the sealing of the connection is also enhanced.

[0035] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A combined sealing flange, characterized in that: The invention comprises a first flange body (1) and a second flange body (2), wherein the first flange body (1) and the second flange body (2) are provided with connecting grooves (3) on the facing surfaces, and a sealing portion (4) is clamped and connected between the connecting grooves (3) on both sides, and the connecting grooves (3) and the sealing portion (4) have the same shape; The sealing portion (4) comprises a sealing member (401), wherein a plurality of first arcuate surfaces (402) connected to each other are arranged in an annular array on the inner side surface of the sealing member (401), and a first positioning angle (404) is integrally formed between two adjacent first arcuate surfaces (402); and a plurality of second arcuate surfaces (403) connected to each other are arranged in an annular array on the outer side surface of the sealing member (401), and a second positioning angle (405) is integrally formed between two adjacent second arcuate surfaces (403); A plurality of the first arcuate surfaces (402) and a plurality of the second arcuate surfaces (403) are arranged in an alternating manner, and a plurality of the first clamping angles (404) and a plurality of the second clamping angles (405) are distributed in the connecting groove (3) in a circular array.

2. A combined sealing flange according to claim 1, characterized in that: A sealing ring (5) is centrally arranged on the plurality of first arcuate surfaces (402) and the plurality of first clamping angles (404), and the shape of the outer surface of the sealing ring (5) is consistent with the plurality of first arcuate surfaces (402) and the plurality of first clamping angles (404).

3. The combined sealing flange according to claim 1, characterized in that: The sealing member (401) is provided with a cavity (406) inside, and an elastic ring is arranged inside the cavity (406), and the cross section of the elastic ring is honeycomb-shaped.

4. A combined sealing flange according to claim 2, characterized in that: The sealing ring (5) is provided with a hollow cavity (501) inside, and the cross-sectional shape of the sealing ring (5) is circular.

5. The combined sealing flange according to claim 1, characterized in that: The thickness of the sealing portion (4) is greater than the sum of the depths of the two connecting grooves (3), and there is an interference fit between the sealing portion (4) and the two connecting grooves (3).

6. The combined sealing flange according to claim 1, characterized in that: A plurality of through holes are provided in a circular array on one side of the first flange body (1) and the second flange body (2), and connecting sleeves (101) are fixedly provided in the plurality of through holes provided on the first flange body (1), and the connecting sleeves (101) are inserted into the corresponding through holes provided on the second flange body (2).

7. A combined sealing flange according to claim 6, characterized in that: An annular groove (102) is provided on the outer wall of the side end of the connecting sleeve (101), and the groove surface of the annular groove (102) is an arc surface.

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