Sealing flange device

Abstract

The utility model provides a sealing flange device which comprises a first connecting piece, a second connecting piece and a sealing piece, the first connecting piece comprises a first fixing part and a first cylinder body, the first fixing part is fixed on the first cylinder body, the second connecting piece comprises a second fixing part and a second cylinder body, the second cylinder body is sleeved on the outer side of the first cylinder body, and the sealing piece is arranged on the second fixing part. The second fixing part is fixed to the second barrel and detachably connected with the first fixing part in a sealed mode, the sealing piece is arranged in the second barrel, and the two ends of the sealing piece are connected to the first barrel and the second barrel in a sealed mode respectively. The second barrel is arranged on the first barrel in a sleeving mode, the butt joint position of the two pipelines is located in the first barrel and the second barrel, the butt joint position of the two pipelines does not correspond to the connecting position of the first connecting piece and the second connecting piece, sealing of the interior of the second barrel is achieved through the sealing piece, the sealing performance is improved from multiple aspects, and the possibility of water leakage is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline sealing field especially relates to a sealing flange device. BACKGROUND

[0002] Flange, also called flange flange plate or lug. Basic meaning is to refer to, the convex structure on the object, or the object with convex structure, for example, flange bolt, flange shaft etc. Since the flange structure is often used in the connection between shaft and shaft, between pipe end and pipe end or between equipment and equipment, therefore, the flange generally described, it is generally used in the mechanical field for connecting parts or structure, for example, pipe flange, reducer flange.

[0003] For example, the sealing device of the flange connection provided in patent CN204420392U, including flange, connecting piece connected with the flange, sealing ring is arranged between the flange and the connecting piece, the end of the flange towards the sealing ring is provided with a groove;The flange is provided with a triangular boss downward, a triangular groove is formed in the corresponding position of the connecting piece, a V-shaped sealing ring is installed in the triangular groove, and the V-shaped sealing ring is tightly attached to the two side end faces of the triangular groove.

[0004] The above scheme has the following problems: the butt joint position of the two pipes is often consistent with the contact position of the flange and the connecting piece, and once the sealing ring is aged, the problem of water leakage due to poor sealing is prone to occur. UTILITY MODEL CONTENTS

[0005] Therefore, it is necessary to provide a sealing flange device to solve the problem of water leakage due to poor sealing caused by aging of the sealing ring.

[0006] The utility model provides a sealing flange device, which comprises:

[0007] The first connecting piece comprises a first fixed part and a first cylinder body, and the first fixed part is fixed on the first cylinder body;

[0008] The second connecting piece comprises a second fixed part and a second cylinder body, the second cylinder body is sleeved outside the first cylinder body, the second fixed part is fixed on the second cylinder body and detachably and sealingly connected with the first fixed part;And

[0009] The sealing element is arranged in the second cylinder body and sealingly connected to the first cylinder body and the second cylinder body at both ends.

[0010] In other embodiments, the inner surface of the end of the second cylinder body away from the second fixed part extends to form an abutting ring, and the sealing element abuts against the abutting ring.

[0011] In other embodiments, the seal comprises a first sealing ring, a support ring and a second sealing ring, the support ring is arranged in the second cylinder, one end of the support ring abuts with the end of the first cylinder, the other end of the support ring abuts with the abutting ring, the first sealing ring is arranged on the abutting surface of the support ring and the first cylinder, and the second sealing ring is arranged on the abutting surface of the support ring and the abutting ring.

[0012] In other embodiments, the support ring is formed with a support ring inclined surface inclined to the axis direction of the support ring on one end close to the first cylinder, and the first cylinder is formed with a first cylinder inclined surface inclined to the axis direction of the first cylinder on one end close to the support ring.

[0013] In other embodiments, the support ring is formed with a support ring inclined surface inclined to the axis direction of the support ring on one end close to the abutting ring, and the abutting ring is formed with an abutting ring inclined surface inclined to the axis direction of the abutting ring on one end close to the support ring.

[0014] In other embodiments, the first fixed part comprises a first fixed ring coaxially fixed to one end of the first cylinder, and a plurality of first bolt connecting holes are formed in the first fixed ring.

[0015] In other embodiments, a plurality of elastic sealing elements are arranged on the surface of the first fixed ring in contact with the second fixed part.

[0016] In other embodiments, a plurality of elastic sealing elements are arranged on the surface of the first fixed ring in contact with the second fixed part.

[0017] In other embodiments, the second fixed part comprises a second fixed ring coaxially fixed to one end of the second cylinder, and a plurality of second bolt connecting holes are formed in the second fixed ring.

[0018] In other embodiments, the inner diameter of the second fixed ring is not greater than the inner diameter of the second cylinder and not less than the outer diameter of the first cylinder.

[0019] The beneficial effects of the utility model are as follows:

[0020] In this invention, a first connecting member, a second connecting member, and a sealing member are provided. The first connecting member includes a first fixing part and a first cylindrical body. The first fixing part is fixed to the first cylindrical body. The second connecting member includes a second fixing part and a second cylindrical body. The second cylindrical body is sleeved on the outside of the first cylindrical body. The second fixing part is fixed to the second cylindrical body and detachably and sealingly connected to the first fixing part. The sealing member is disposed inside the second cylindrical body, with its two ends respectively sealingly connected to the first cylindrical body and the second cylindrical body. The second cylindrical body is sleeved on the first cylindrical body, so that the docking position of the two pipes is located inside the first cylindrical body and the second cylindrical body, making the docking position of the two pipes not correspond to the connection position of the first connecting member and the second connecting member. The sealing member achieves a seal inside the second cylindrical body, thereby increasing the sealing performance from multiple aspects and reducing the possibility of water leakage. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a cross-sectional schematic diagram of the sealing flange device in this utility model;

[0023] Figure 2 for Figure 1 A cross-sectional schematic diagram of the first connecting member;

[0024] Figure 3 for Figure 1 A cross-sectional schematic diagram of the second connecting member;

[0025] Figure 4 for Figure 1 A schematic diagram of the cross-section of the central sealing element;

[0026] 1-First connecting member, 11-First fixing part, 111-First fixing ring, 111a-First bolt connection hole, 12-First cylinder, 121-Inclined surface of first cylinder, 2-Second connecting member, 21-Second fixing part, 211-Second fixing ring, 211a-Second bolt connection hole, 22-Second cylinder, 23-Abutting ring, 231-Inclined surface of abutting ring, 3-Sealing member, 31-Supporting ring, 311-Inclined surface of support ring. Detailed Implementation

[0027] The preferred embodiments of the present application are specifically described below with reference to the drawings, which form a part of this application. The drawings and the embodiments together with the specification serve to explain the principles of the present application, and do not limit the scope of the present application.

[0028] As shown in Figures 1-4 The embodiments of the present application provide a sealing flange device, which comprises a first connecting piece 1, a second connecting piece 2 and a sealing piece 3. The first connecting piece 1 comprises a first fixed part 11 and a first cylinder 12. The first fixed part 11 is fixed on the first cylinder 12. The second connecting piece 2 comprises a second fixed part 21 and a second cylinder 22. The second cylinder 22 is sleeved outside the first cylinder 12. The second fixed part 21 is fixed on the second cylinder 22 and detachably and sealingly connected with the first fixed part 11. The sealing piece 3 is arranged in the second cylinder 22 and sealingly connected with the first cylinder 12 and the second cylinder 22 at both ends.

[0029] In the present application, the first cylinder 12, the second cylinder 22 and the sealing piece 3 are arranged. The second cylinder 22 is sleeved outside the first cylinder 12, so that the butt joint position of the two pipes is located inside the first cylinder 12 and the second cylinder 22. The butt joint position of the two pipes does not correspond to the connecting position of the first connecting piece 1 and the second connecting piece 2. The sealing piece 3 realizes the sealing of the inside of the second cylinder 22, so as to increase the sealing performance from multiple aspects and reduce the possibility of water leakage.

[0030] Specifically, the first fixed part 11 comprises a first fixed ring 111. The first fixed ring 111 is coaxially fixed at one end of the first cylinder 12. A plurality of first bolt connecting holes 111a are formed in the first fixed ring 111.

[0031] It should be noted that the inner diameter of the first fixed ring 111 is designed according to the diameter of the connecting pipe. The inner diameter of the first fixed ring 111 is not greater than the inner diameter of the first cylinder 12.

[0032] Further, a plurality of elastic sealing pieces are arranged on the surface of the first fixed ring 111 in contact with the second fixed part 21. When the first fixed ring 111 is in contact with the second fixed part 21, the elastic sealing pieces realize the sealing between the first fixed ring 111 and the second fixed part 21.

[0033] Specifically, the first cylinder body 12 is provided with a plurality of elastic sealing members on the outer surface. When the second cylinder body 22 is sleeved on the first cylinder body 12, the inner wall of the second cylinder body 22 abuts against the elastic sealing members. When the second cylinder body 22 is sleeved on the first cylinder body 12, the elastic sealing members realize the sealing between the second cylinder body 22 and the first cylinder body 12.

[0034] Specifically, the second fixing part 21 comprises a second fixing ring 211 coaxially fixed to one end of the second cylinder body 22, and a plurality of second bolt connecting holes 211a are formed in the second fixing ring 211.

[0035] It should be noted that the inner diameter of the second fixing ring 211 is designed according to the diameter of the connecting pipeline, and the inner diameter of the second fixing ring 211 is not greater than the inner diameter of the second cylinder body 22 and not less than the outer diameter of the first cylinder body 12.

[0036] Specifically, the inner surface of the end of the second cylinder body 22 away from the second fixing part 21 extends to form an abutting ring 23, and the sealing member 3 abuts against the abutting ring 23. The abutting ring 23 functions to bear the sealing member 3 and close the gap between the second cylinder body 22 and the pipeline.

[0037] Specifically, the sealing member 3 comprises a first sealing ring, a support ring 31 and a second sealing ring. The support ring 31 is arranged in the second cylinder body 22, one end of the support ring 31 abuts against the end of the first cylinder body 12, and the other end of the support ring 31 abuts against the abutting ring 23. The first sealing ring is arranged on the abutting surface of the support ring 31 and the first cylinder body 12, and the second sealing ring is arranged on the abutting surface of the support ring 31 and the abutting ring 23.

[0038] Further, the end of the support ring 31 close to the first cylinder body 12 is formed with a support ring inclined surface 311 inclined to the axis direction of the support ring 31, and the end of the first cylinder body 12 close to the support ring 31 is formed with a first cylinder body inclined surface 121 inclined to the axis direction of the first cylinder body 12. The purpose of such design is to form a region accommodating the first sealing ring between the support ring inclined surface and the first cylinder body inclined surface, and to limit the first sealing ring to avoid movement of the first sealing ring.

[0039] Further, the support ring 31 is formed with a support ring inclined surface 311 inclined to the axis direction of the support ring 31 at one end close to the abutting ring 23, and the abutting ring 23 is formed with an abutting ring inclined surface 231 inclined to the axis direction of the abutting ring 23 at one end close to the support ring 31. The purpose of such design is to form a region accommodating the second sealing ring between the support ring inclined surface and the abutting ring inclined surface, and to limit the second sealing ring to avoid movement of the second sealing ring.

[0040] The utility model has the advantages of:

[0041] In the utility model, first connecting piece, second connecting piece and sealing piece are arranged, the first connecting piece includes first fixed part and first cylinder, the first fixed part is fixed on the first cylinder, the second connecting piece includes second fixed part and second cylinder, the second cylinder is sleeved on the outside of the first cylinder, the second fixed part is fixed on the second cylinder and is detachable sealed connection with the first fixed part, the sealing piece is located in the second cylinder, and both ends are sealed and connected to the first cylinder and the second cylinder respectively. The second cylinder is sleeved on the first cylinder, the butt joint position of the two pipes is located in the first cylinder and the second cylinder, the butt joint position of the two pipes does not correspond with the connection position of the first connecting piece and the second connecting piece, and the sealing piece realizes the sealing of the second cylinder, so that the sealing performance is increased from many aspects, and the possibility of water leakage is reduced.

[0042] The above is only the preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A sealed flange arrangement, characterized in that include: The first connector includes a first fixing part and a first cylinder, wherein the first fixing part is fixed to the first cylinder; The second connector includes a second fixing part and a second cylindrical body. The second cylindrical body is sleeved on the outside of the first cylindrical body, and the second fixing part is fixed to the second cylindrical body and detachably and sealingly connected to the first fixing part; and A sealing element is disposed inside the second cylinder, with its two ends respectively sealingly connected to the first cylinder and the second cylinder.

2. The sealed flange arrangement of claim 1, wherein, The inner surface of the second cylinder at the end away from the second fixing part extends to form an abutment ring, and the sealing member abuts against the abutment ring.

3. The sealed flange arrangement of claim 2, wherein, The sealing element includes a first sealing ring, a support ring, and a second sealing ring. The support ring is disposed inside the second cylinder. One end of the support ring abuts against the end of the first cylinder, and the other end of the support ring abuts against the abutting ring. The first sealing ring is disposed on the abutting surface where the support ring abuts against the first cylinder, and the second sealing ring is disposed on the abutting surface where the support ring abuts against the abutting ring.

4. The sealed flange arrangement of claim 3, wherein, The support ring has an inclined surface that is inclined toward the axis of the support ring at one end near the first cylinder, and the first cylinder has an inclined surface that is inclined toward the axis of the first cylinder at one end near the support ring.

5. The sealed flange apparatus of claim 3, wherein, The support ring has a support ring inclined surface that is inclined toward the axis of the support ring at one end near the abutting ring, and the abutting ring has an abutting ring inclined surface that is inclined toward the axis of the abutting ring at one end near the support ring.

6. The sealed flange apparatus of claim 1, wherein, The first fixing part includes a first fixing ring, which is coaxially fixed to one end of the first cylinder, and the first fixing ring is provided with a plurality of first bolt connection holes.

7. The sealed flange arrangement of claim 6, wherein, The surface of the first fixing ring that contacts the second fixing part is provided with several elastic sealing elements.

8. The sealed flange apparatus of claim 1, wherein, The outer surface of the first cylinder is provided with a plurality of elastic sealing elements. When the second cylinder is sleeved on the first cylinder, the inner wall of the second cylinder abuts against the elastic sealing elements.

9. The sealed flange apparatus of claim 1, wherein, The second fixing part includes a second fixing ring, which is coaxially fixed to one end of the second cylinder, and the second fixing ring is provided with a plurality of second bolt connection holes.

10. The sealed flange apparatus of claim 9, wherein, The inner diameter of the second fixing ring is not greater than the inner diameter of the second cylinder and not less than the outer diameter of the first cylinder.

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