Large flange connecting equipment between double pipelines

Abstract

The utility model provides large flange connecting equipment between double pipelines, which relates to the technical field of flanges and comprises a first pipeline, a second pipeline is arranged on one side of the first pipeline, flange plates are arranged at one end of the first pipeline and one end of the second pipeline, four mounting blocks are arranged on the surface of the first pipeline in a surrounding manner, and mounting ports are formed in the surfaces of the four mounting blocks. The flange plate of the second pipeline and the flange plate of the first pipeline can be perfectly attached together to prevent the two flange plates from deviating during attachment, after the two flange plates are attached, the second pipeline is slowly rotated, so that the clamping blocks installed on the second pipeline abut against the supporting rods on the first pipeline, and then the first pipeline and the second pipeline are fixed. Due to the fact that the positions of the supporting rod and the clamping block are calculated in advance, when the clamping block abuts against the supporting rod, the flange holes of the flange plate of the second pipeline can be matched with the flange holes of the flange plate of the first pipeline in a one-to-one mode, slow adjustment is not needed, and the defect that when the two flanges are attached, the flange holes of the two flanges cannot be matched is overcome.

Description

Technical Field

[0001] This utility model relates to the field of flange technology, and in particular to a large flange connection device between two pipes. Background Technology

[0002] A multi-pipe connection flange disclosed in Chinese Publication No. CN106247058B includes a first flange, a second flange, a sealing gasket, fastening bolts, and a nut. The sealing gasket is disposed between the first and second flanges. At least two pipe receiving holes are respectively provided at corresponding positions on the first and second flanges. At least two fastening through holes are also respectively provided at corresponding positions on the first and second flanges. The fastening bolts pass through the fastening through holes of the first and second flanges and are threadedly connected to the nut. Because the multi-pipe connection flange of this invention has at least two pipe receiving holes at corresponding positions on the first and second flanges, it can connect multiple pipes simultaneously, which greatly improves engineering efficiency, saves manpower and resources, and accelerates construction progress.

[0003] When connecting pipes using the aforementioned and existing technologies with flanges, the flanges of the two pipes need to be aligned and the flange holes of the two flanges need to be aligned before they can be fixed with bolts. However, with the existing technology, after the two flanges are fitted together, they need to be manually adjusted little by little to align the flange holes of the two flanges, making it impossible to align the flange holes of the two flanges when they are fitted together. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies that cannot align the flange holes of two flanges when they are fitted together, and to propose a large flange connection device for two pipes.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a large flange connection device between two pipes, comprising a first pipe, a second pipe provided on one side of the first pipe, a flange provided at one end of both the first pipe and the second pipe, four mounting blocks surrounding the surface of the first pipe, each of the four mounting blocks having a mounting opening on its surface, a support rod provided on one side of each of the four mounting openings, sixteen flange holes provided on the surface of each of the two flanges, four limiting holes provided on the surface of the flange of the second pipe, locking blocks provided on both sides of the second pipe, two limiting blocks provided on the bottom surface of each of the two locking blocks, and a screw provided on one side of each of the two locking blocks.

[0006] Preferably, both flanges are welded to the first pipe and the second pipe, and the two flanges fit together.

[0007] Preferably, the sixteen flange holes are equally spaced on the surface of the flange, and the four limiting holes are arranged in pairs around the second pipe as a mirror image, with each pair of limiting holes evenly arranged on both sides of the flange holes.

[0008] Preferably, the four mounting blocks are arranged around the surface of the first pipe at equal intervals, and the mounting blocks are welded to the first pipe. All four mounting blocks are located at the end of the first pipe near the flange.

[0009] Preferably, one end of each of the four support rods is installed in the mounting opening on the surface of the mounting block, and the support rods are threadedly connected to the mounting block.

[0010] Preferably, both of the clamping blocks are mounted on the surface of the flange of the second pipe by two screws, and both screws pass through the flange hole of the flange.

[0011] Preferably, the positions of the two card blocks correspond one-to-one with the positions of the limiting holes, the four limiting blocks are integrally formed with the two card blocks, and the positions of the four limiting blocks correspond one-to-one with the positions of the four limiting holes, and the four limiting blocks are installed in the limiting holes.

[0012] Beneficial effects

[0013] In this invention, when fitting the two flanges together, four support rods are screwed into the mounting holes of four mounting blocks on the outer surface of the first pipe. The support rods are L-shaped, and two clamping blocks are installed on the flange of the second pipe using two screws. After the support rods and clamping blocks are installed, the flanges of the first and second pipes are slowly fitted together. During fitting, the flange of the second pipe is pushed towards the middle of the four support rods of the first pipe. The four support rods restrict the flange of the second pipe during fitting, ensuring a perfect fit between the flanges of the second and first pipes and preventing misalignment. After the two flanges are fitted together, the second pipe is slowly rotated so that the clamping blocks installed on the second pipe abut against the support rods on the first pipe. Since the positions of the support rods and clamping blocks are pre-calculated, when the clamping blocks abut against the support rods, the flange holes of the flange of the second pipe align one-to-one with the flange holes of the flange of the first pipe, eliminating the need for further adjustment and solving the problem of not being able to align the flange holes of the two flanges during fitting. Attached Figure Description

[0014] Figure 1 This is an isometric drawing of the present invention;

[0015] Figure 2 This is the left view of the present invention;

[0016] Figure 3 For the present utility model Figure 2Sectional view at point AA;

[0017] Figure 4 This is a partial right view of the present invention;

[0018] Figure 5 This is a partial part drawing of the present invention.

[0019] Legend:

[0020] 1. First pipe; 2. Second pipe; 3. Flange; 4. Mounting block; 5. Support rod; 6. Mounting port; 7. Limiting hole; 8. Locking block; 9. Screw; 10. Limiting block; 11. Flange hole. Detailed Implementation

[0021] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation plan without creative effort are all within the protection scope of this utility model.

[0022] The specific embodiments of this utility model are described below with reference to the accompanying drawings. Specific Implementation Example 1:

[0024] Reference Figure 1-5A large flange connection device between two pipes includes a first pipe 1, a second pipe 2 on one side of the first pipe 1, and flanges 3 at one end of both the first pipe 1 and the second pipe 2. Four mounting blocks 4 surround the surface of the first pipe 1, each mounting block 4 has a mounting opening 6 on its surface, and a support rod 5 on one side of each mounting opening 6. Sixteen flange holes 11 are provided on the surface of each flange 3. Four limiting holes 7 are provided on the surface of the flange 3 of the second pipe 2. Locking blocks 8 are provided on both sides of the second pipe 2, and two limiting blocks 10 are provided on the bottom surface of each locking block 8. A screw 9 is provided on one side of each locking block 8. Both flanges 3 are welded to the first pipe 1 and the second pipe 2, and the two flanges 3 fit together. The sixteen flange holes 11 are evenly spaced on the surface of the flanges 3. The four limiting holes 7 are arranged in pairs to connect the second pipe 1 and the second pipe 2. Pipe 2 is positioned as a central mirror image, and each set of limiting holes 7 is evenly distributed on both sides of flange hole 11. Four mounting blocks 4 are evenly spaced around the surface of the first pipe 1 and are welded to the first pipe 1. All four mounting blocks 4 are located at the end of the first pipe 1 near flange 3. One end of each of the four support rods 5 is installed in the mounting port 6 on the surface of the mounting block 4 and is threadedly connected to the mounting block 4. Two locking blocks 8 are installed on the surface of flange 3 of the second pipe 2 through two screws 9, and both screws 9 penetrate the flange hole 11 of flange 3. The positions of the two locking blocks 8 correspond one-to-one with the positions of the limiting holes 7. All four limiting blocks 10 are integrally formed with the two locking blocks 8 and the positions of the four limiting blocks 10 correspond one-to-one with the positions of the four limiting holes 7. All four limiting blocks 10 are installed in the limiting holes 7.

[0025] The first pipe 1 and the second pipe 2 are connected together by two flanges 3. During connection, sixteen bolts 9 are passed through the flange holes 11 of the two flanges 3 to ensure a tight fit between the two flanges 3. Two sets of limiting holes 7 are provided on the surface of the flange 3 of the second pipe 2, with two holes in each set. The two sets of limiting holes 7 are mirror images of the second pipe 2, and are evenly distributed on both sides of the flange hole 11. The positions of the limiting blocks 10 on the bottom surface of the two clamping blocks 8 correspond one-to-one with the positions of each set of limiting holes 7, allowing the clamping blocks 8 to be installed with their limiting blocks 10 in place. The locking block 8 is restrained in the limiting hole 7 on the flange 3 to prevent it from shifting. It is then secured to the flange 3 with a screw 9. Four mounting blocks 4 are arranged around the surface of the first pipe 1 at equal intervals. The mounting blocks 4 have mounting openings 6 on their surfaces. The mounting blocks 4 are used to install the support rod 5. The inner wall of the mounting opening 6 is threaded so that one end of the support rod 5 can be screwed into the mounting opening 6 to fix the support rod 5 to the mounting block 4. When the L-shaped support rod 5 is installed on the mounting block 4, it will form a circular hole slightly larger than the flange 3. When the two flanges 3 are fitted together, the support rod 5 will provide a guiding role for the fitting of the two flanges 3, so as to facilitate the perfect fitting of the two flanges 3.

[0026] When fitting the two flanges 3 together, screw the four support rods 5 into the mounting openings 6 of the four mounting blocks 4 on the outer surface of the first pipe 1 to form a round hole slightly larger than the flange 3. Install the two locking blocks 8 onto the flange 3 of the second pipe 2 using two screws 9. During installation, install the limiting block 10 of the locking block 8 into the limiting hole 7 of the flange 3 for subsequent fixing with screws 9. After the support rods 5 and locking blocks 8 are installed, slowly fit the flanges 3 of the first pipe 1 and the second pipe 2 together. During fitting, push the flange 3 of the second pipe 2 towards the center of the four support rods 5 of the first pipe 1. The four support rods 5 will restrict the flange 3 of the second pipe 2 during fitting and provide guidance for the movement of the flange 3 of the second pipe 2, ensuring a perfect fit between the flange 3 of the second pipe 2 and the flange 3 of the first pipe 1, preventing misalignment of the two flanges 3 during fitting. After the two flanges 3 are properly fitted, slowly rotate the second pipe 2 to allow the flanges 3 installed... The clamping block 8 of the second pipe 2 abuts against the support rod 5 on the first pipe 1. Since the positions of the support rod 5 and the clamping block 8 are calculated in advance, when the clamping block 8 abuts against the support rod 5, the flange hole 11 of the flange 3 of the second pipe 2 will align one-to-one with the flange hole 11 of the flange 3 of the first pipe 1, without the need for further adjustment. After the flange holes 11 of the two flanges 3 are aligned, the screw 9 is passed through the aligned flange holes 11 of the two flanges 3. After passing through, nuts are screwed onto both ends of the screw 9, so that the two flanges 3 are tightly fixed together by the nuts at both ends of the screw 9. After the flanges 3 are fixed, the screw 9 on the clamping block 8 can be unscrewed and the clamping block 8 can be removed. After the clamping block 8 is removed, the four support rods 5 are unscrewed from the installation ports 6 of the four mounting blocks 4 to prevent the clamping block 8 and the support rods 5 from affecting the subsequent use of the flanges 3. After the clamping block 8 is removed, the two remaining flange holes 11 are passed through by two screws 9, and nuts are screwed into both ends of the two newly installed screws 9 for fixation. Specific Implementation Example 2:

[0028] Reference Figure 1-5 A large flange connection device between two pipes is further based on the basic structure in Specific Embodiment 1. It should be noted that the inner surface of the flange hole 11 between the two limiting holes 7 in each group on the surface of the flange 3 of the second pipe 2 is provided with threads, so that the two screws 9 can be screwed into the flange hole 11 of the flange 3 of the second pipe 2. When the two clamping blocks 8 are attached to the two flange holes 11 with threaded holes, the screws 9 can be screwed into the clamping blocks 8 and the flange holes 11, thereby installing and fixing the two clamping blocks 8 on the flange 3. In use, the screws 9 can also be replaced with fastening knobs to facilitate the identification of the screws 9 required to fix the two flanges 3 in the future.

[0029] In summary:

[0030] 1. When fitting the two flanges 3, screw the four support rods 5 into the mounting openings 6 of the four mounting blocks 4 on the outer surface of the first pipe 1. The support rods 5 are L-shaped. Install the two clamping blocks 8 onto the flange 3 of the second pipe 2 using two screws 9. After the support rods 5 and clamping blocks 8 are installed, slowly fit the flanges 3 of the first pipe 1 and the second pipe 2 together. During the fitting process, push the flange 3 of the second pipe 2 towards the center of the four support rods 5 of the first pipe 1. The four support rods 5 will restrict the flange 3 of the second pipe 2 during the fitting process, thus ensuring the flange of the second pipe 2... The flange 3 can fit perfectly with the flange 3 of the first pipe 1 to prevent the two flanges 3 from shifting during fitting. After the two flanges 3 are fitted, the second pipe 2 is slowly rotated so that the clamping block 8 installed on the second pipe 2 abuts against the support rod 5 on the first pipe 1. Since the positions of the support rod 5 and the clamping block 8 are calculated in advance, when the clamping block 8 abuts against the support rod 5, the flange hole 11 of the flange 3 of the second pipe 2 will be aligned with the flange hole 11 of the flange 3 of the first pipe 1 one by one, without the need for slow adjustment. This solves the problem of not being able to align the flange holes 11 of the two flanges when fitting them together.

[0031] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A large flanged connection device between two pipes, comprising a first pipe (1), characterized in that: One side of the first pipeline (1) is provided with the second pipeline (2), one end of the first pipeline (1) and the second pipeline (2) is provided with the flange plate (3), the surface of the first pipeline (1) is surrounded by four mounting blocks (4), the surface of four mounting blocks (4) is provided with the mounting port (6), one side of four mounting ports (6) is provided with the supporting rod (5), the surface of two flange plates (3) is provided with sixteen flange holes (11), the surface of the flange plate (3) of the second pipeline (2) is provided with four limiting holes (7), two sides of the second pipeline (2) are provided with the clamping block (8), the bottom surface of two clamping blocks (8) is provided with two limiting blocks (10), one side of two clamping blocks (8) is provided with the screw rod (9).

2. A large flange connection device between two pipes according to claim 1, characterized in that: Two flange plates (3) are welded with the first pipeline (1) and the second pipeline (2), and the two flange plates (3) are attached.

3. A large flange connection device between two pipes according to claim 1, characterized in that: Sixteen flange holes (11) are equidistantly arranged on the surface of the flange plate (3), four limiting holes (7) are arranged in pairs with the second pipeline (2) as the center mirror image, and each group of limiting holes (7) is evenly arranged on both sides of the flange hole (11).

4. A large flange connection device between two pipes according to claim 1, characterized in that: Four mounting blocks (4) are equidistantly arranged on the surface of the first pipeline (1), and the mounting block (4) is welded with the first pipeline (1), and four mounting blocks (4) are arranged on one end of the first pipeline (1) close to the flange plate (3).

5. A large flange connection device between two pipes according to claim 1, characterized in that: One end of four supporting rods (5) is mounted in the mounting port (6) on the surface of the mounting block (4), and the supporting rod (5) is threadedly connected with the mounting block (4).

6. A large flange connection device between two pipes according to claim 1, characterized in that: Two clamping blocks (8) are mounted on the surface of the flange plate (3) of the second pipeline (2) through two screw rods (9), and two screw rods (9) penetrate the flange hole (11) of the flange plate (3).

7. A large flange connection device between two pipes according to claim 1, characterized in that: The positions of two clamping blocks (8) correspond to the positions of limiting holes (7) one by one, four limiting blocks (10) are integrally formed with two clamping blocks (8), and the positions of four limiting blocks (10) correspond to the positions of four limiting holes (7) one by one, four limiting blocks (10) are mounted in the limiting hole (7).

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