Quick connecting flange for pipelines

Abstract

The utility model discloses a pipeline quick connecting flange, which relates to the technical field of flanges and comprises a first flange plate, one side of the first flange plate is provided with a second flange plate, one side of the first flange plate is fixedly provided with a connecting mechanism, the connecting mechanism comprises a clamping block, the surface of the clamping block is provided with a groove, and the clamping block is fixedly connected with the second flange plate. Sliding grooves are formed in the two sides of the groove, first springs are arranged in the sliding grooves, one ends of the first springs are fixedly connected with push rods, the push rods are slidably connected into the sliding grooves, and the other ends of the first springs are fixedly connected to the inner walls of the sliding grooves; clamping plates are fixedly mounted at the ends, away from the first springs, of the push rods. The fixing rod is clamped and fixed through the clamping plates on the two sides in the groove, so that two pipelines are rapidly connected, meanwhile, direct impact on the fixing rod is avoided, and the service life of the flange is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of flanges, in particular to a pipeline quick connection flange. Background Art

[0002] Flange connection is to fix two pipes, pipe fittings or equipment on a flange plate, add flange gaskets between the two flange plates, and fasten them together with bolts to complete the connection. Some pipe fittings and equipment already have flange plates, which also belong to flange connection. Flange connection is an important connection method for pipeline construction. Flange connection is easy to use and can withstand greater pressure.

[0003] However, most of the existing flanges are fixedly connected using tension screws. After a period of use, the pressure of the fluid in the pipeline or the vibration generated during the operation of the equipment will cause the flanges to loosen, and then the liquid transported in the pipeline will flow out from the flange connection. In addition, when the tension screw is used to fix the flange connection, the installation is cumbersome, time-consuming and labor-intensive, which affects the installation efficiency.

[0004] Therefore, it is necessary to propose a pipeline quick connection flange to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a pipeline quick connection flange to solve the problem that when the flange is fixedly connected with a tensioning screw rod, the installation is complicated, time-consuming and labor-intensive, which affects the installation efficiency.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pipeline quick-connect flange, comprising a first flange plate, a second flange plate is arranged on one side of the first flange plate, a connecting mechanism is fixedly installed on one side of the first flange plate, the connecting mechanism comprises a locking block, a groove is provided on the surface of the locking block, sliding grooves are provided on both sides of the groove, a first spring is arranged inside the sliding groove, one end of the first spring is fixedly connected to a push rod, the push rod is slidably connected in the sliding groove, the other end of the first spring is fixedly connected to the inner wall of the sliding groove, and a clamp is fixedly installed on the end of the push rod away from the first spring.

[0007] Preferably, a plurality of the engaging blocks are provided, and the plurality of engaging blocks are distributed in a circle around the first flange, and an inclined block is fixedly mounted on one side of the engaging block away from the first flange.

[0008] Preferably, a locking groove is provided on one side of the second flange close to the locking block, and a plurality of the locking grooves are provided, and the plurality of locking grooves correspond one-to-one to the corresponding plurality of locking blocks respectively.

[0009] Preferably, telescopic grooves are provided on both sides of the engaging groove, connecting blocks are slidably connected in the telescopic grooves, and a fixing rod is fixedly connected between the two connecting blocks.

[0010] Preferably, a threaded rod is movably provided on the connection block, one end of the threaded rod is rotatably connected to the inner wall of the telescopic slot, and the other end of the threaded rod is movably provided on the second flange.

[0011] Preferably, a stopper is provided below the connecting block, the stopper is threadedly connected to the threaded rod, and the stopper is slidably connected to the inner wall of the telescopic slot.

[0012] Preferably, a second spring is fixedly connected to the bottom of the connecting block, one end of the second spring away from the connecting block is fixedly connected to the inner wall of the stopper, and the second spring is movably sleeved on the threaded rod.

[0013] Preferably, a sealing ring is provided between the first flange and the second flange.

[0014] Technical effects and advantages of the utility model:

[0015] 1. The utility model clamps and fixes the fixing rod by the clamping plates on both sides of the groove, thereby realizing the quick connection of two pipes. At the same time, the first spring reduces the lateral vibration and impact generated during the working process of the pipeline, avoids direct impact on the fixing rod, and improves the service life of the flange;

[0016] 2. The utility model drives the stopper to move by the threaded rod, thereby separating the two flanges, making it convenient for the later inspection and maintenance of the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the pipeline quick connection flange of the utility model.

[0018] Figure 2 This is a cross-sectional view of the pipeline quick connection flange structure of the utility model.

[0019] Figure 3 For this utility model Figure 2 A magnified view of the structure in the middle.

[0020] Figure 4 This is a cross-sectional view of the second flange structure of the utility model.

[0021] Figure 5 For this utility model Figure 4 Enlarged view of the structure at point B in the middle.

[0022] Figure 6 This is a schematic diagram of the structure of the first flange and sealing ring of the utility model.

[0023] In the figure: 1. first flange; 2. second flange; 3. snap-fit ​​block; 4. snap-fit ​​groove; 5. inclined block; 6. groove; 7. clamping plate; 8. push rod; 9. first spring; 10. fixing rod; 11. threaded rod; 12. second spring; 13. connecting block; 14. stopper; 15. sliding groove; 16. telescopic groove; 17. sealing ring. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] The utility model provides Figure 1-Figure 6 A pipeline quick connection flange shown includes a first flange 1, a second flange 2 is arranged on one side of the first flange 1, and the first flange 1 cooperates with the second flange 2 to fix and connect the pipeline.

[0026] Furthermore, a sealing ring 17 is provided between the first flange 1 and the second flange 2. The sealing ring 17 is used to prevent the liquid transported in the pipeline from flowing out from the flange connection. The sealing ring 17 is attached to the connection of the pipeline.

[0027] Taking into account that most of the existing flanges are fixedly connected by tightening screw rods, the installation of the tightening screw rods for fixing the flanges is cumbersome, time-consuming and labor-intensive, which affects the installation efficiency. Therefore, a connecting mechanism is fixedly installed on the side of the first flange 1 close to the second flange 2, and the connecting mechanism includes a snap-fit ​​block 3. A snap-fit ​​groove 4 is provided on the side of the second flange 2 close to the snap-fit ​​block 3. An inclined block 5 is fixedly installed on the side of the snap-fit ​​block 3 away from the first flange 1. The inclined block 5 is used to facilitate the quick snap-fitting of the snap-fit ​​block 3 in the snap-fit ​​groove 4. The snap-fit ​​block 3 cooperates with the snap-fit ​​groove 4. By snapping the snap-fit ​​block 3 in the snap-fit ​​groove 4, the two pipes are fixedly connected.

[0028] Specifically, a plurality of engaging blocks 3 are provided, and the plurality of engaging blocks 3 are distributed circumferentially with respect to the first flange 1 , and a plurality of engaging grooves 4 are provided, and the plurality of engaging grooves 4 correspond one-to-one to the corresponding plurality of engaging blocks 3 .

[0029] Telescopic grooves 16 are provided on both sides of the engaging groove 4, and connecting blocks 13 are slidably connected in the telescopic grooves 16. The connecting blocks 13 are used to connect to the fixing rod 10 for sliding up and down. The fixing rod 10 is fixedly connected between the two connecting blocks 13, and the fixing rod 10 is used to engage the engaging block 3.

[0030] A stopper 14 is provided below the connecting block 13, and the stopper 14 is slidably connected to the inner wall of the telescopic groove 16. A second spring 12 is fixedly connected to the bottom of the connecting block 13, and the second spring 12 is used to reset the fixing rod 10, thereby fixing the two flanges and reducing the vertical vibration and impact generated during the operation of the pipeline, thereby avoiding loose connection between the two flanges. One end of the second spring 12 away from the connecting block 13 is fixedly connected to the inner wall of the stopper 14.

[0031] A groove 6 is provided on the surface of the locking block 3, and sliding grooves 15 are provided on both sides of the groove 6. A first spring 9 is provided inside the sliding groove 15. The first spring 9 is used to reduce the lateral vibration and impact generated during the operation of the pipeline, avoid direct impact on the fixing rod 10, and improve the service life of the flange.

[0032] During operation, since the pipeline generates vibration during operation, the vibration is transmitted to the flange through the pipeline, causing the two flanges to shake. During the shaking process, the two first springs 9 shrink and reset back and forth, thereby reducing the collision between the two flanges, thereby achieving a buffering effect and increasing the service life of the first flange 1 and the second flange 2.

[0033] One end of the first spring 9 is fixedly connected to a push rod 8, and the push rod 8 is slidably connected in the sliding groove 15. The other end of the first spring 9 is fixedly connected to the inner wall of the sliding groove 15. A clamping plate 7 is fixedly installed on the end of the push rod 8 away from the first spring 9. The clamping plate 7 is used to clamp the fixing rod 10, and the cross-section of the clamping plate 7 is a right-angled trapezoid. The right-angled trapezoidal structure can enable the fixing rod 10 to be quickly engaged between the two clamping plates 7, thereby fixing the first flange 1 and the second flange 2 to be fixedly connected, and then quickly connecting the pipeline.

[0034] During the specific operation, the operator matches the locking block 3 on the first flange 1 with the locking groove 4 on the second flange 2, and inserts the locking block 3 into the locking groove 4, so that the inclined block 5 squeezes the fixing rod 10, and the fixing rod 10 slides into the groove 6 along the inclined surface of the inclined block 5, and the fixing rod 10 is clamped and fixed by the clamping plates 7 on both sides of the groove 6, so as to realize the quick connection of the two pipes, avoid the need to locate the mounting holes on the two flanges one by one when using the tensioning screw rod, and improve the installation efficiency between the flanges.

[0035] Considering that the flange needs to be inspected and repaired after long-term use, a threaded rod 11 is threadedly connected to the connecting block 13. The threaded rod 11 is used to control the movement of the stopper 14, and then the position of the fixing rod 10 is adjusted by squeezing the connecting block 13 by the stopper 14. The stopper 14 is threadedly connected to the threaded rod 11.

[0036] During maintenance, the fixing rod 10 is removed from the clamping plate 7 to separate the two flanges, and the second spring 12 is movably sleeved on the threaded rod 11 .

[0037] Specifically, one end of the threaded rod 11 is rotatably connected to the inner wall of the telescopic slot 16 , and the other end of the threaded rod 11 is movably inserted into the second flange 2 .

[0038] During specific work, when the pipeline needs to be inspected and maintained, the operator rotates the threaded rod 11 so that the stopper 14 pushes the connecting block 13 to slide on the threaded rod 11, driving the fixing rod 10 to move, thereby separating the two flanges to facilitate the later inspection and maintenance of the pipeline.

[0039] It should be noted that when the second flange 2 is manufactured and shipped from the factory, the position of the stop block 14 is in contact with the bottom of the telescopic groove 16, which will not affect the quick installation between the first flange 1 and the second flange 2; the position of the stop block 14 only needs to be moved when maintenance is required, and after the maintenance is completed, the stop block 14 only needs to be moved back to its original position.

Claims

1. A pipeline quick connection flange, comprising a first flange (1), a second flange (2) being arranged on one side of the first flange (1), Features: A connecting mechanism is fixedly installed on one side of the first flange (1), and the connecting mechanism includes a locking block (3), a groove (6) is provided on the surface of the locking block (3), sliding grooves (15) are provided on both sides of the groove (6), a first spring (9) is arranged inside the sliding groove (15), one end of the first spring (9) is fixedly connected to a push rod (8), the push rod (8) is slidably connected in the sliding groove (15), the other end of the first spring (9) is fixedly connected to the inner wall of the sliding groove (15), and a clamping plate (7) is fixedly installed on the end of the push rod (8) away from the first spring (9).

2. A pipeline quick connection flange according to claim 1, Features: A plurality of the snap-fit ​​blocks (3) are provided, and the plurality of snap-fit ​​blocks (3) are distributed in a circumferential manner around the first flange (1); an inclined block (5) is fixedly mounted on one side of the snap-fit ​​block (3) away from the first flange (1).

3. A pipeline quick connection flange according to claim 1, Features: A snap-fit ​​groove (4) is provided on one side of the second flange (2) close to the snap-fit ​​block (3), and a plurality of the snap-fit ​​grooves (4) are provided, and the plurality of snap-fit ​​grooves (4) correspond one-to-one to the corresponding plurality of snap-fit ​​blocks (3).

4. A pipeline quick connection flange according to claim 3, Features: Telescopic grooves (16) are provided on both sides of the engaging groove (4), a connecting block (13) is slidably connected in the telescopic groove (16), and a fixing rod (10) is fixedly connected between the two connecting blocks (13).

5. A pipeline quick connection flange according to claim 4, Features: A threaded rod (11) is movably inserted into the connection block (13), one end of the threaded rod (11) is rotatably connected to the inner wall of the telescopic slot (16), and the other end of the threaded rod (11) is movably inserted into the second flange (2).

6. A pipeline quick connection flange according to claim 5, Features: A stopper (14) is provided below the connection block (13); the stopper (14) is threadedly connected to the threaded rod (11); and the stopper (14) is slidably connected to the inner wall of the telescopic slot (16).

7. A pipeline quick connection flange according to claim 5, Features: A second spring (12) is fixedly connected to the bottom of the connecting block (13); one end of the second spring (12) away from the connecting block (13) is fixedly connected to the inner wall of the stopper (14); and the second spring (12) is movably sleeved on the threaded rod (11).

8. The pipeline quick connection flange according to claim 1, Features: A sealing ring (17) is provided between the first flange (1) and the second flange (2).

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