Flange sleeve convenient to mount and dismount and good in sealing performance

Abstract

The utility model relates to the technical field of flanges, and discloses a flange sleeve convenient to mount and dismount and good in sealing performance, which comprises a flange plate, a flange sleeve is mounted on the right side of the flange plate, a flange is fixedly connected to the right side of the flange sleeve, a reserved opening is formed in the flange plate, a first sealing ring is mounted in the reserved opening, and a second sealing ring is mounted in the first sealing ring. And a corrosion-resistant ring is fixedly connected to the inner side of the first sealing ring, a filter screen is installed in the flange sleeve, sealing strips are installed on the two sides of the filter screen, and a reinforcing layer is fixedly connected to the interior of the flange sleeve. According to the flange sleeve convenient to mount and dismount and good in sealing performance, the sealing effect of connection can be enhanced through the first sealing ring on the flange plate, the sealing effect of right-side connection can be enhanced through the second sealing ring and the third sealing ring in the flange sleeve, and the sealing strength of flange connection can be enhanced through the three sealing assemblies; according to the structure, the function of good sealing effect is achieved, and the problem of poor sealing effect is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of flanges, in particular to a flange sleeve which is easy to install and disassemble and has good sealing performance. Background Art

[0002] Flanges are also called flanged discs or flanges. Flanges are parts that connect shafts to each other and are used to connect pipe ends. Flanges are also used on equipment inlets and outlets to connect two pieces of equipment. Any connection part that is bolted together and sealed around two planes is generally called a flange. For example, the connection of ventilation ducts can be called a flange part.

[0003] The flange and its flange sleeve have the problem of poor sealing effect when in use. For example, the flange sleeve only relies on the internal structure to achieve sealing, and gaps are likely to appear at the connection between the flange sleeve and the pipeline equipment, thereby affecting the sealing effect of the connection.

[0004] There is an urgent need for a flange sleeve that is easy to install and disassemble and has good sealing performance to solve the technical defects proposed in the above technology. Utility Model Content

[0005] The purpose of the present invention is to provide a flange sleeve that is easy to install and disassemble and has good sealing performance, so as to solve the problem of poor sealing effect mentioned in the above background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a flange sleeve that is easy to install and disassemble and has good sealing performance, comprising a flange plate, a flange sleeve installed on the right side of the flange plate, a flange sleeve fixedly connected to the right side, a reserved opening provided inside the flange plate, a first sealing ring installed inside the reserved opening, a corrosion-resistant ring fixedly connected to the inner side of the first sealing ring, a filter screen installed inside the flange sleeve, sealing strips installed on both sides of the filter screen, a reinforcement layer fixedly connected to the inner side of the flange sleeve, an installation groove provided inside the reinforcement layer, a threaded hole provided inside the flange plate, a second sealing ring installed inside the flange, and a third sealing ring installed inside the second sealing ring.

[0007] Preferably, the exterior of the first sealing ring is tightly fitted with the inner wall of the reserved opening, and the flange is connected to the flange sleeve.

[0008] Preferably, six groups of threaded holes are provided, and the threaded holes are distributed in a ring shape on the flange.

[0009] Preferably, the top and bottom ends of the filter screen are fixedly connected with mounting blocks, the mounting blocks are embedded in the interior of the mounting chute, and the right side of the mounting blocks is fixedly connected with a pull rod.

[0010] Preferably, the filter screen is circular, and the sealing strip is in contact with the inner wall of the flange sleeve.

[0011] Preferably, a connecting block is installed on the outside of the second sealing ring, a connecting slot is provided on the inside of the flange, and the right side of the flange is movably connected to a limiting baffle.

[0012] Preferably, the connecting card block is embedded in the connecting card slot, and the limiting baffle is arranged on the right side of the connecting card block.

[0013] Preferably, a threaded groove is installed on the outside of the flange sleeve.

[0014] Compared with the prior art, the beneficial effects of the present invention are: the flange sleeve which is easy to install and disassemble and has good sealing performance not only realizes the function of enhancing the sealing effect and facilitating filtering, but also realizes the function of being easy to disassemble;

[0015] (1) By providing a first sealing ring, a corrosion-resistant layer, a second sealing ring, and a third sealing ring, the first sealing ring on the flange can enhance the sealing effect of the connection, the second sealing ring and the third sealing ring inside the flange sleeve can enhance the sealing effect of the right connection, and the three sets of sealing components can enhance the sealing strength of the flange connection. This structure realizes the function of easy installation and good sealing effect;

[0016] (2) By providing a filter screen, a sealing strip, an installation chute, an installation block and a pull rod, the filter screen can realize a filtering function. When in use, the installation block on the filter screen needs to be inserted into the interior of the installation chute. The sealing strip on the filter screen can fit tightly with the inner wall of the flange sleeve. The filter screen can prevent external impurities from entering the interior of the pipe. This structure realizes the function of facilitating filtering.

[0017] (3) By providing the flange, the second sealing ring, the connecting block, the connecting slot and the limiting baffle, when the flange sleeve needs to be removed, the second sealing ring is first disassembled and removed, and the limiting baffle is rotated to remove it during disassembly, and then the connecting block on the second sealing ring is removed from the inside of the connecting slot, and then the filter screen is removed from the inside of the flange sleeve. This structure realizes the function of easy disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the front cross-sectional structure of the present utility model;

[0019] Figure 2 It is a left side structural schematic diagram of the present utility model;

[0020] Figure 3 For the utility model Figure 1 A in the middle is an enlarged structural diagram;

[0021] Figure 4 It is a schematic structural diagram of the right side view of the present utility model.

[0022] In the figure: 1. Flange; 2. Reserved opening; 3. First sealing ring; 4. Threaded hole; 5. Flange sleeve; 6. Filter screen; 7. Sealing strip; 8. Flanged edge; 9. Mounting groove; 10. Threaded groove; 11. Corrosion-resistant ring; 12. Reinforcement layer; 13. Mounting block; 14. Pull rod; 15. Second sealing ring; 16. Connecting block; 17. Third sealing ring; 18. Connecting slot; 19. Limit baffle. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Example 1: Please refer to Figure 1-4 , a flange sleeve that is easy to install and disassemble and has good sealing performance, including a flange plate 1, a flange sleeve 5 is installed on the right side of the flange plate 1, and a flange 8 is fixedly connected to the right side of the flange sleeve 5. A reserved opening 2 is provided inside the flange plate 1, a first sealing ring 3 is installed inside the reserved opening 2, and a corrosion-resistant ring 11 is fixedly connected to the inner side of the first sealing ring 3, a filter screen 6 is installed inside the flange sleeve 5, and sealing strips 7 are installed on both sides of the filter screen 6. A reinforcement layer 12 is fixedly connected to the inner side of the flange sleeve 5, and an installation slide groove 9 is provided inside the reinforcement layer 12. A threaded hole 4 is provided inside the flange plate 1, a second sealing ring 15 is installed inside the flange 8, and a third sealing ring 17 is installed inside the second sealing ring 15;

[0025] The outer portion of the first sealing ring 3 is tightly fitted with the inner wall of the reserved opening 2, the flange 1 is connected to the flange sleeve 5, and six groups of threaded holes 4 are provided, and the threaded holes 4 are distributed in an annular shape on the flange 1;

[0026] Specifically, if Figure 1 and Figure 2 As shown, the first sealing ring 3 on the flange 1 can enhance the sealing effect of the connection, the second sealing ring 15 and the third sealing ring 17 inside the flange sleeve 5 can enhance the sealing effect of the right connection, and the three sets of sealing components can enhance the sealing strength of the flange connection.

[0027] Example 2: The top and bottom ends of the filter screen 6 are fixedly connected with mounting blocks 13, which are embedded in the interior of the mounting chute 9. The right side of the mounting block 13 is fixedly connected with a pull rod 14. The filter screen 6 is circular, and the sealing strip 7 is in contact with the inner wall of the flange sleeve 5.

[0028] Specifically, if Figure 1 and Figure 3 As shown, the filter screen 6 can realize the filtering function. When in use, the installation block 13 on the filter screen 6 needs to be inserted into the inside of the installation slide groove 9. The sealing strip 7 on the filter screen 6 can fit tightly with the inner wall of the flange sleeve 5. The filter screen 6 can prevent external impurities from entering the inside of the pipeline.

[0029] Example 3: A connecting block 16 is installed on the outside of the second sealing ring 15, a connecting slot 18 is provided inside the flange 8, a limit baffle 19 is movably connected to the right side of the flange 8, the connecting block 16 is embedded in the connecting slot 18, the limit baffle 19 is provided on the right side of the connecting block 16, and a threaded groove 10 is installed on the outside of the flange sleeve 5;

[0030] Specifically, if Figure 1 and Figure 4 As shown, when the flange sleeve 5 needs to be removed, the second sealing ring 15 is first disassembled and removed. During disassembly, the limit baffle 19 is rotated to remove it, and then the connecting block 16 on the second sealing ring 15 is removed from the inside of the connecting slot 18, and then the filter screen 6 is removed from the inside of the flange sleeve 5.

[0031] Working principle: When using the utility model, the flange 1 needs to be connected to the pipeline equipment first. The first sealing ring 3 on the flange 1 can enhance the sealing effect of the connection. The second sealing ring 15 and the third sealing ring 17 inside the flange sleeve 5 can enhance the sealing effect of the right connection. The three sets of sealing components can enhance the sealing strength of the flange connection. When the flange sleeve 5 needs to be removed, the second sealing ring 15 must be disassembled and removed first. During disassembly, the limit baffle 19 is rotated to remove the second sealing ring 15, and then the connecting block 16 on the second sealing ring 15 is removed from the inside of the connecting slot 18. Then, the filter screen 6 is removed from the inside of the flange sleeve 5. The filter screen 6 can realize the filtering function. When in use, the installation block 13 on the filter screen 6 needs to be inserted into the inside of the installation slide groove 9 first. The sealing strip 7 on the filter screen 6 can fit tightly with the inner wall of the flange sleeve 5, and the filter screen 6 can prevent external impurities from entering the inside of the pipeline. This structure realizes the function of facilitating filtering.

[0032] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A flange sleeve that is easy to install and disassemble and has good sealing performance, comprising a flange plate (1), characterized in that: A flange sleeve (5) is installed on the right side of the flange (1), and a flange (8) is fixedly connected to the right side of the flange sleeve (5). A reserved opening (2) is provided inside the flange (1), and a first sealing ring (3) is installed inside the reserved opening (2). The inner side of the first sealing ring (3) is fixedly connected to a corrosion-resistant ring (11). A filter screen (6) is installed inside the flange sleeve (5), and sealing strips (7) are installed on both sides of the filter screen (6). A reinforcement layer (12) is fixedly connected inside the flange sleeve (5), and a mounting groove (9) is provided inside the reinforcement layer (12). A threaded hole (4) is provided inside the flange (1), and a second sealing ring (15) is installed inside the flange (8). A third sealing ring (17) is installed inside the second sealing ring (15).

2. The flange sleeve according to claim 1, which is easy to install and disassemble and has good sealing performance, is characterized in that: The exterior of the first sealing ring (3) is tightly fitted to the inner wall of the reserved opening (2), and the flange (1) is connected to the flange sleeve (5).

3. The flange sleeve according to claim 1, which is easy to install and disassemble and has good sealing performance, is characterized in that: The threaded holes (4) are provided in six groups, and the threaded holes (4) are distributed in an annular shape on the flange (1).

4. The flange sleeve according to claim 1, which is easy to install and disassemble and has good sealing performance, is characterized in that: The top and bottom ends of the filter screen (6) are fixedly connected with mounting blocks (13), the mounting blocks (13) are embedded in the interior of the mounting chute (9), and the right side of the mounting blocks (13) is fixedly connected with a pull rod (14).

5. The flange sleeve according to claim 1, which is easy to install and disassemble and has good sealing performance, is characterized in that: The filter screen (6) is circular, and the sealing strip (7) is in contact with the inner wall of the flange sleeve (5).

6. The flange sleeve according to claim 1, which is easy to install and disassemble and has good sealing performance, is characterized in that: A connecting block (16) is installed on the outside of the second sealing ring (15), a connecting slot (18) is provided inside the flange (8), and a limit baffle (19) is movably connected to the right side of the flange (8).

7. The flange sleeve according to claim 6, which is easy to install and disassemble and has good sealing performance, is characterized in that: The connecting card block (16) is embedded in the connecting card slot (18), and the limiting baffle (19) is arranged on the right side of the connecting card block (16).

8. The flange sleeve according to claim 1, which is easy to install and disassemble and has good sealing performance, is characterized in that: A thread groove (10) is installed on the outside of the flange sleeve (5).

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