A pipe connecting flange

Abstract

This utility model relates to the field of flange technology and discloses a pipe connection flange, including a first pipe, a second pipe disposed on the left side of the first pipe, a first flange fixedly connected to the outer left side of the first pipe, a second flange fixedly connected to the outer right side of the second pipe, a sealing ring fixedly connected to the right side of the second flange, a sealing groove formed on the left side of the first flange, bolts evenly arranged around the inner perimeter of the second flange, and nuts threaded onto the outer sides of the bolts, and a connecting assembly disposed on the opposite side of the first and second flanges for connecting the two flanges. In this utility model, through the cooperation between the first flange, connecting block, mounting block, mounting groove, sealing ring, seal, sliding groove, second flange, bolts, and nuts, the pipe connection flange achieves easy assembly while ensuring connection strength, thus improving the practicality of the connection flange.

Description

Technical Field

[0001] This utility model relates to the field of flange technology, and in particular to a pipe connection flange. Background Technology

[0002] Pipeline flanges are important components in industrial piping systems used to connect different pipe assemblies. They are widely used in petroleum, chemical, power, pharmaceutical, and food processing industries. The main function of pipeline flanges is to firmly connect pipe assemblies together with bolts while ensuring sealing and preventing media leakage. Currently, pipeline flanges on the market have some common problems, such as cumbersome assembly process, unstable connection strength, and unsatisfactory sealing effect. Especially in high temperature, high pressure, and corrosive environments, the wear and leakage of connecting components are more prominent. Utility Model Content

[0003] To overcome the above shortcomings, this utility model provides a pipe connection flange, which aims to improve the problems of cumbersome assembly process and unstable connection strength of pipe connection flanges in the prior art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a pipe connection flange, comprising a first pipe, a second pipe disposed on the left side of the first pipe, a first flange fixedly connected to the outer left side of the first pipe, a second flange fixedly connected to the outer right side of the second pipe, a sealing ring fixedly connected to the right side of the second flange, a sealing groove opened on the left side of the first flange, bolts evenly inserted around the inner perimeter of the second flange, nuts threaded onto the outer side of the bolts, and a connecting assembly disposed on the opposite side of the first flange and the second flange for connecting the two flanges.

[0005] As a further description of the above technical solution:

[0006] The connecting assembly includes a connecting block, which is fixedly connected to the left side of the first flange. An installation block is fixedly connected to the side of the connecting block away from the first flange. A sliding groove is provided in the middle of the right side of the second flange, and installation grooves are provided on all four sides of the outer side of the sliding groove.

[0007] As a further description of the above technical solution:

[0008] Both the first flange and the second flange are made of cast steel, the sealing ring is made of polytetrafluoroethylene, and the bolts are made of alloy steel.

[0009] As a further description of the above technical solution:

[0010] The sealing ring is slidably connected inside the sealing groove.

[0011] As a further description of the above technical solution:

[0012] The mounting block is slidably connected inside the mounting groove, and the connecting block is slidably connected inside the sliding groove.

[0013] As a further description of the above technical solution:

[0014] The bolt passes through the second flange, the mounting block, and the first flange, and the mounting block is slidably connected inside the second flange.

[0015] As a further description of the above technical solution:

[0016] Both the connecting block and the mounting block are made of stainless steel.

[0017] This utility model has the following beneficial effects:

[0018] 1. In this utility model, by pushing the first flange to move the connecting block, the connecting block drives the mounting block to slide into the mounting groove, and at the same time the sealing ring slides into the sealing groove, the first flange is rotated to drive the connecting block to slide in the groove, and the connecting block drives the mounting block to slide in the second flange. Finally, the bolt is pushed to pass through the first flange, the second flange and the mounting block, and the nut is rotated to tighten the bolt. This realizes that the pipeline connection flange is easy to assemble while ensuring the connection strength, and improves the practicality of the connection flange.

[0019] 2. In this utility model, the strength and high pressure and high temperature resistance of the first and second flanges are ensured by using cast steel material, the high temperature and corrosion resistance of the sealing ring is improved by using polytetrafluoroethylene material, and the bolts are ensured to maintain good mechanical properties in high temperature, pressure or corrosive environments by using alloy steel material, thereby improving the applicability of the pipe connection flange. Attached Figure Description

[0020] Figure 1 This is a perspective view of a pipe connection flange proposed in this utility model;

[0021] Figure 2 This is a schematic diagram of the second flange of a pipe connection flange proposed in this utility model;

[0022] Figure 3 This is a schematic diagram of the first flange of a pipe connection flange proposed in this utility model.

[0023] Legend:

[0024] 1. First pipe; 2. Second pipe; 3. First flange; 4. Second flange; 5. Bolt; 6. Nut; 7. Slide groove; 8. Mounting groove; 9. Sealing ring; 10. Sealing groove; 11. Connecting block; 12. Mounting block. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Reference Figures 1-3 This utility model provides an embodiment of a pipe connection flange, including a first pipe 1, a second pipe 2 disposed on the left side of the first pipe 1, a first flange 3 fixedly connected to the outer left side of the first pipe 1, a second flange 4 fixedly connected to the outer right side of the second pipe 2, a sealing ring 9 fixedly connected to the right side of the second flange 4, the sealing ring 9 being slidably connected inside a sealing groove 10, a sealing groove 10 being opened on the left side of the first flange 3, bolts 5 being evenly inserted around the inner perimeter of the second flange 4, nuts 6 being threadedly connected to the outer side of the bolts 5, a connecting assembly being disposed on the opposite side of the first flange 3 and the second flange 4 for connecting the two flanges, the connecting assembly including a connecting block 11, the connecting block 11 being fixedly connected around the left perimeter of the first flange 3, an mounting block 12 being fixedly connected to the side of the connecting block 11 away from the first flange 3, a sliding groove 7 being opened in the middle of the right side of the second flange 4, mounting grooves 8 being opened around the outer perimeter of the sliding groove 7, the mounting block 12 being slidably connected inside the mounting groove 8, the connecting block 11 being slidably connected inside the sliding groove 7, the bolts 5 passing through the second flange 4, the mounting block 12 and the first flange 3, the mounting block 12 being slidably connected inside the second flange 4.

[0027] When assembling the pipe connection flange, first pull the bolt 5 to disengage it from the second flange 4. Then, push the first pipe 1 to fit tightly against the second pipe 2. The first pipe 1 causes the first flange 3 to fit tightly against the second flange 4. The first flange 3 causes the connecting block 11 to move. The connecting block 11 causes the mounting block 12 to slide into the mounting groove 8. The sealing ring 9 slides into the sealing groove 10 to ensure the integrity and effectiveness of the seal. Rotate the first flange 3 to make the connecting block 11 slide inside the sliding groove 7. The connecting block 11 causes the mounting block 12 to slide inside the second flange 4. Finally, push the bolt 5 to pass through the first flange 3, the second flange 4, and the mounting block 12. Tighten the bolt 5 by rotating the nut 6 to ensure the tightness and firmness of the flange connection. This achieves convenient assembly of the pipe connection flange, ensures the strength of the connection, and improves the practicality and durability of the pipe connection flange.

[0028] Reference Figures 1-3 Both the first flange 3 and the second flange 4 are made of cast steel, the sealing ring 9 is made of polytetrafluoroethylene, the bolt 5 is made of alloy steel, and the connecting block 11 and the mounting block 12 are made of stainless steel.

[0029] By using cast steel, the strength and high-pressure and high-temperature resistance of the first flange 3 and the second flange 4 are guaranteed, thus ensuring safety and reliability in complex working environments. The robustness of cast steel also greatly enhances the stability of the flange connection. By using polytetrafluoroethylene (PTFE), the high-temperature and corrosion resistance of the sealing ring 9 is improved, ensuring long-term stability of the sealing effect and avoiding leakage problems caused by high temperature or corrosion. By using alloy steel, the bolts 5 maintain good mechanical properties in high-temperature, high-pressure, or corrosive environments, thus ensuring the firmness and durability of the bolt connection. By using stainless steel, the strength and durability of the connecting block 11 and the mounting block 12 are guaranteed, improving the pressure resistance of the connecting block 11 and the mounting block 12 and extending their service life. This improves the applicability and overall performance of the pipeline connection flange, ensuring its stable operation for a long time under high temperature and high pressure conditions.

[0030] Working principle: When assembling the pipe connection flange, pull bolt 5 to disengage it from the second flange 4, then push the first pipe 1 to fit against the second pipe 2. The first pipe 1 drives the first flange 3 to fit against the second flange 4. The first flange 3 drives the connecting block 11 to move. The connecting block 11 drives the mounting block 12 to slide into the mounting groove 8. At the same time, the sealing ring 9 slides into the sealing groove 10. Then rotate the first flange 3 to drive the connecting block 11 to slide inside the sliding groove 7. The connecting block 11 drives the mounting block 12 to slide inside the second flange 4. Finally, push bolt 5 to pass through the first flange 3, the second flange 4 and the mounting block 12. Turn nut 6 to tighten bolt 5. This makes the pipe connection flange easy to assemble while ensuring connection strength, thus improving the practicality of the pipe connection flange.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pipe connection flange, comprising a first pipe (1), characterized in that: A second pipe (2) is provided on the left side of the first pipe (1). A first flange (3) is fixedly connected to the left side of the first pipe (1). A second flange (4) is fixedly connected to the right side of the second pipe (2). A sealing ring (9) is fixedly connected to the right side of the second flange (4). A sealing groove (10) is provided on the left side of the first flange (3). Bolts (5) are evenly inserted around the inside of the second flange (4). Nuts (6) are threaded on the outside of the bolts (5). A connecting assembly is provided on the opposite side of the first flange (3) and the second flange (4) for connecting the two flanges.

2. A pipe connection flange according to claim 1, characterized in that: The connecting assembly includes a connecting block (11), which is fixedly connected to the left side of the first flange (3). A mounting block (12) is fixedly connected to the side of the connecting block (11) away from the first flange (3). A sliding groove (7) is provided in the middle of the right side of the second flange (4), and mounting grooves (8) are provided on all four sides of the outer side of the sliding groove (7).

3. A pipe connection flange according to claim 1, characterized in that: The first flange (3) and the second flange (4) are both made of cast steel, the sealing ring (9) is made of polytetrafluoroethylene, and the bolt (5) is made of alloy steel.

4. A pipe connection flange according to claim 1, characterized in that: The sealing ring (9) is slidably connected inside the sealing groove (10).

5. A pipe connection flange according to claim 2, characterized in that: The mounting block (12) is slidably connected inside the mounting groove (8), and the connecting block (11) is slidably connected inside the sliding groove (7).

6. A pipe connection flange according to claim 2, characterized in that: The bolt (5) passes through the second flange (4), the mounting block (12) and the first flange (3), and the mounting block (12) is slidably connected inside the second flange (4).

7. A pipe connection flange according to claim 2, characterized in that: Both the connecting block (11) and the mounting block (12) are made of stainless steel.

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