Corrosion-resistant large-diameter bushing ring flange

Abstract

The utility model discloses a corrosion-resistant large-caliber bushing ring flange, which belongs to the technical field of flanges and comprises a flange plate, a sealing groove is arranged in the middle of the inner side of the flange plate, and a group of connecting holes are arranged in the flange plate at equal intervals. An inner bushing and an outer sleeve are fixedly connected to the inner portion and the middle of the outer side of the flange plate respectively, threaded rings are arranged in the middles of the opposite faces of the inner bushing and the outer sleeve, and an anti-corrosion sealing mechanism is arranged on the outer side of the flange plate and close to the side edge and comprises a connecting plate. The connecting piece and the pipe fitting are welded firstly, then the flanges are mounted and dismounted in a rotating mode, follow-up maintenance and replacement of the flanges are facilitated, the sealing assembly is arranged to conduct sealing protection on the connecting position of the two flanges, the anti-corrosion effect is achieved, and the service life of the flanges is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of flanges, and more specifically to a corrosion-resistant large-diameter liner ring flange. Background Art

[0002] Flanges are also called flanges or flanges. There are many types of flanges. Liner ring flanges are one of them. They are a component specially used for pipe connection. The flange usually consists of the flange itself and the built-in gasket. The gasket plays the role of connecting pipes and preventing leakage, so liner ring flanges are widely used in chemical, pharmaceutical, food and other industrial fields.

[0003] Based on the above, the inventors found that the existing large-diameter liner ring flange is mainly connected to the pipeline by welding, which makes it inconvenient to disassemble and replace the flange after problems occur in the later stage, thus affecting the connection of the pipeline. Therefore, in view of this, the existing structure is studied and improved to provide a corrosion-resistant large-diameter liner ring flange, in order to achieve a more practical purpose. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the problems existing in the prior art, the purpose of the utility model is to provide a corrosion-resistant large-diameter liner ring flange. The present scheme sets up an indirect installation structure, firstly welds the connecting parts and the pipe fittings, and then installs and removes the flange by rotation, so as to facilitate the subsequent maintenance and replacement of the flange, and sets a sealing assembly to seal and protect the connection between the two flanges, so as to achieve an anti-corrosion effect and extend the service life of the flange.

[0006] 2. Technical solution

[0007] To solve the above problems, the utility model adopts the following technical solutions.

[0008] A corrosion-resistant large-diameter bushing flange comprises a flange plate, a sealing groove is provided in the center of the inner side of the flange plate, a group of connection holes are provided in the inner side of the flange plate at equal intervals, an inner bushing and an outer bushing are fixedly connected in the inner side and the outer side of the flange plate respectively, a threaded ring is provided in the center of the opposite surface of the inner bushing and the outer bushing, and an anti-corrosion sealing mechanism is provided on the outer side of the flange plate;

[0009] The anti-corrosion sealing mechanism includes a connecting plate, a group of sealing sleeves are fixedly connected to the inner side of the connecting plate, and connecting plates are fixedly connected to both sides and the upper and lower ends of the connecting plate, wherein the end faces of two of the connecting plates are provided with snap-in grooves, and the end faces of the other two connecting plates are fixedly connected with snap-in blocks.

[0010] Furthermore, the sealing groove is arranged in an annular shape, and the connecting hole and the sealing groove are arranged to be connected.

[0011] Furthermore, the outer side of the threaded ring fits with the inner side of the outer sleeve, and the inner side of the threaded ring is threadedly connected with the outer side of the inner sleeve.

[0012] Furthermore, the connecting plate is located on the outer side of the flange plate and close to the side edge, and the sealing sleeve is matched with the connecting hole.

[0013] Furthermore, the positions of the two clamping grooves and the two clamping blocks are staggered.

[0014] Furthermore, a sealing gasket is clamped inside the sealing groove, and one side of the sealing gasket is in contact with the inner surface of the sealing groove.

[0015] Furthermore, a pipe fitting is welded to an outer end of the threaded ring, and a connection between the threaded ring and the pipe fitting is located on the inner side of the opposite surfaces of the inner bushing and the outer sleeve.

[0016] 3. Beneficial effects

[0017] Compared with the prior art, the advantages of the present invention are:

[0018] (1) In this solution, the threaded ring is welded to the pipe fitting, and then the inner sleeve is rotated, so that the flange moves toward the pipe fitting, so that the connection between the threaded ring and the pipe fitting is located on the inner side of the opposite surfaces of the inner sleeve and the outer sleeve, completing the connection between the flange and the pipe fitting. Conversely, the inner sleeve is rotated in the opposite direction to remove the flange. Compared with the prior art, an indirect installation structure is provided, so that the connecting part and the pipe fitting are welded first, and then the flange is installed and removed by rotation, which is convenient for the subsequent maintenance and replacement of the flange.

[0019] (2) By setting up an anti-corrosion sealing mechanism, the two connecting plates are staggered at 90 degrees, and the connecting plates are moved so that the sealing sleeve is arranged on the outer side of the connection between the bolt and the connecting hole. At the same time, two pairs of clamping grooves cooperate with two pairs of clamping blocks to complete the fixing of the two connecting plates. Compared with the prior art, a sealing assembly is set to seal and protect the connection between the two flanges, which has an anti-corrosion effect and prolongs the service life of the flange. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the back structure of the utility model;

[0022] Figure 3 It is a structural schematic diagram of the anti-corrosion sealing mechanism of the utility model;

[0023] Figure 4It is a structural schematic diagram of the utility model in working state.

[0024] Explanation of the numbers in the figure: 1. Flange; 2. Sealing groove; 3. Connecting hole; 4. Inner sleeve; 5. Outer sleeve; 6. Threaded ring; 7. Anti-corrosion sealing mechanism; 8. Connecting plate; 9. Sealing sleeve; 10. Connecting plate; 11. Snap-in groove; 12. Snap-in block. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0026] Example:

[0027] See also Figure 1-4 A corrosion-resistant large-diameter bushing flange comprises a flange 1, a sealing groove 2 is provided in the center of the inner side of the flange 1, and a group of connecting holes 3 are provided in the inner side of the flange 1 at equal intervals, an inner bushing 4 and an outer bushing 5 are fixedly connected to the inner side and the outer side of the flange 1 respectively, a threaded ring 6 is provided in the center of the opposite surface of the inner bushing 4 and the outer bushing 5, and an anti-corrosion sealing mechanism 7 is provided on the outer side of the flange 1;

[0028] The anti-corrosion sealing mechanism 7 includes a connecting plate 8, a group of sealing sleeves 9 are fixedly connected to the inner side of the connecting plate 8, and connecting plates 10 are fixedly connected to both sides and the upper and lower ends of the connecting plate 8, wherein the end faces of two connecting plates 10 are provided with snap-in grooves 11, and the end faces of the other two connecting plates 10 are fixedly connected with snap-in blocks 12. In order to seal and protect the connection between the two flanges and achieve an anti-corrosion effect, an anti-corrosion sealing mechanism 7 is provided.

[0029] See also Figure 1 The sealing groove 2 is arranged in an annular shape, and the connecting hole 3 is arranged to be through the sealing groove 2. The bolts are passed through the two connecting holes 3 and matched with nuts to fix the two flanges 1.

[0030] See also Figure 2 The outer side of the threaded ring 6 fits with the inner side of the outer sleeve 5, and the inner side of the threaded ring 6 is threadedly connected to the outer side of the inner sleeve 4. The inner sleeve 4 is rotated to connect or separate the flange 1 from the pipe fitting, thereby completing the installation and removal of the flange 1.

[0031] See also Figure 3The connecting plate 8 is located on the outer side of the flange 1, and the sealing sleeve 9 is matched with the connecting hole 3. The connecting plate 8 is first sleeved on the outer side of the flange 1. After the flange 1 is fixed, the connecting plate 8 is moved so that the sealing sleeve 9 is sleeved on the outer side of the connection between the bolt and the connecting hole 3.

[0032] See also Figure 3 The two clamping grooves 11 and the two clamping blocks 12 are staggered so that the two connecting plates 8 are staggered at 90 degrees. Then, the two pairs of clamping grooves 11 cooperate with the two pairs of clamping blocks 12 to complete the fixing of the two connecting plates 8.

[0033] See also Figure 4 A sealing gasket is provided inside the sealing groove 2, and one side of the sealing gasket is in contact with the inner surface of the sealing groove 2. The sealing gasket is placed between the two sealing grooves 2, and the bolts pass through the sealing gasket to fix the sealing gasket between the two flanges 1.

[0034] See also Figure 4 A pipe fitting is welded to the outer end of the threaded ring 6, and the connection between the threaded ring 6 and the pipe fitting is located on the inner side of the opposite surfaces of the inner sleeve 4 and the outer sleeve 5. First, the outer ends of the two threaded rings 6 are welded to the two pipe fittings respectively, and then the connecting plate 8 is sleeved on the outer side of the flange plate 1, and then the opposite surfaces of the inner sleeve 4 and the outer sleeve 5 are aligned with the threaded ring 6.

[0035] When in use: first weld the outer ends of the two threaded rings 6 to the two pipe fittings respectively, then sleeve the connecting plate 8 on the outer side of the flange 1, and then align the opposing surfaces of the inner sleeve 4 and the outer sleeve 5 with the threaded ring 6, rotate the inner sleeve 4, and the flange 1 moves toward the pipe fitting, so that the connection between the threaded ring 6 and the pipe fitting is located on the inner side of the opposing surfaces of the inner sleeve 4 and the outer sleeve 5, and the connection between the flange 1 and the pipe fitting is completed. Conversely, the inner sleeve 4 is rotated in the opposite direction to remove the flange 1, and then the sealing gasket is placed between the two sealing grooves 2 to make the two flanges 1 fit together, and then the bolts penetrate the sealing gaskets to fix the two flanges 1, thereby completing the connection of the two pipe fittings, and then the two connecting plates 8 are staggered at 90°, and the connecting plate 8 is moved so that the sealing sleeve 9 is sleeved on the outer side of the connection between the bolt and the connecting hole 3. At the same time, the two pairs of clamping grooves 11 cooperate with the two pairs of clamping blocks 12 to complete the fixing of the two connecting plates 8, and the connection of the two flanges is sealed and protected to achieve an anti-corrosion effect.

[0036] Finally, it should be noted that in the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0037] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A corrosion-resistant large-diameter bushing flange, comprising a flange plate (1), a sealing groove (2) is centrally provided on the inner side of the flange plate (1), and a group of connecting holes (3) are equidistantly provided inside the flange plate (1), characterized in that: An inner sleeve (4) and an outer sleeve (5) are fixedly connected to the inner side and the outer side of the flange (1) respectively, a threaded ring (6) is arranged in the center of the opposing surfaces of the inner sleeve (4) and the outer sleeve (5), and an anti-corrosion sealing mechanism (7) is arranged on the side of the outer side of the flange (1); The anti-corrosion sealing mechanism (7) comprises a connecting plate (8), a group of sealing sleeves (9) are fixedly connected to the inner side of the connecting plate (8), and connecting plates (10) are fixedly connected to both sides and upper and lower ends of the connecting plate (8), wherein the end surfaces of two of the connecting plates (10) are provided with snap-fit ​​grooves (11), and the end surfaces of the other two connecting plates (10) are fixedly connected with snap-fit ​​blocks (12).

2. The corrosion-resistant large-diameter bushing flange according to claim 1, characterized in that: The sealing groove (2) is arranged in an annular shape, and the connecting hole (3) and the sealing groove (2) are arranged to penetrate each other.

3. The corrosion-resistant large-diameter bushing flange according to claim 1, characterized in that: The outer side of the threaded ring (6) is fitted with the inner side of the outer sleeve (5), and the inner side of the threaded ring (6) is threadedly connected with the outer side of the inner sleeve (4).

4. The corrosion-resistant large-diameter bushing flange according to claim 1, characterized in that: The connecting plate (8) is located on the outer side of the flange plate (1) and close to the side edge, and the sealing sleeve (9) is matched with the connecting hole (3).

5. The corrosion-resistant large-diameter bushing flange according to claim 1, characterized in that: The two clamping grooves (11) and the two clamping blocks (12) are arranged in a staggered manner.

6. The corrosion-resistant large-diameter bushing flange according to claim 1, characterized in that: A sealing gasket is clamped inside the sealing groove (2), and one side of the sealing gasket is in contact with the inner surface of the sealing groove (2).

7. The corrosion-resistant large-diameter bushing flange according to claim 1, characterized in that: A pipe fitting is welded to the outer end of the threaded ring (6), and the connection between the threaded ring (6) and the pipe fitting is located on the inner side of the opposite surfaces of the inner liner (4) and the outer liner (5).

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