Connecting structure based on flange

Abstract

The utility model relates to the technical field of flange connection, in particular to a flange-based connection structure which comprises a first pipeline, a second pipeline, a first flange plate, a second flange plate and a locking device, the first flange plate is mounted at the bottom end of the first pipeline, the second flange plate is mounted at the top end of the second pipeline, a first flange hole is formed in the first flange plate, and a second flange hole is formed in the second flange plate. The locking device comprises an annular groove, a cylindrical groove, a locking block, a movable rod, a spring, a containing groove and a pull block, when the annular groove is aligned with the cylindrical groove, the pull block is manually loosened, and when the pull block is loosened, the movable rod is arranged in the containing groove, so that the threaded rod is locked; the spring stretches to provide outward thrust for the locking block, the spring drives the movable rod to move in the direction of the screw rod in the stretching process, the movable rod drives the locking block to leave the containing groove and enter an annular groove formed in the screw rod, and the screw rod is locked and limited.

Description

Technical Field

[0001] The utility model relates to the technical field of flange connection, in particular to a flange-based connection structure. Background Art

[0002] As we all know, in the pipeline system, the flange connection structure is one of the common connection methods. It is mainly used to connect two pipelines or equipment and pipelines to realize the transmission of fluids or gases.

[0003] The traditional flange connection structure lacks a locking device and is prone to loosening or even falling off when affected by external factors such as vibration and pressure changes. This instability not only affects the normal operation of the pipeline system, but may also cause safety accidents. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a flange-based connection structure.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flange-based connection structure, including a pipe 1, a pipe 2, a flange 1, a flange 2 and a locking device, the bottom end of the pipe 1 is installed with the flange 1, the top end of the pipe 2 is installed with the flange 2, the flange 1 is provided with a flange hole 1, the flange 2 is provided with a flange hole 2, screws are installed in the flange hole 1 and the flange hole 2, the locking device includes an annular groove, a cylindrical groove, a locking block, a movable rod, a spring, a receiving groove and a pulling block, the middle outer wall of the screw An annular groove is provided, and the end of the flange plate 2 away from the pipe 2 is provided with the cylindrical groove passing through the flange hole 2, the movable rod is movably installed in the cylindrical groove, the outer wall of the movable rod is sleeved with the spring, and the cylindrical groove is provided with the receiving groove at one end close to the flange hole 2, the locking block is slidably installed in the receiving groove, the locking block is fixedly connected to one end of the movable rod, the locking block is adapted to the annular groove, and the cylindrical groove is provided with a through hole at one end away from the locking block, and the movable rod extends to the through hole to which the pull block is installed.

[0008] In order to improve the sealing performance of the connection, the utility model is improved in that a sealing gasket is installed at the bottom end of the pipe one, and a sealing groove is opened at the top end of the pipe two, and the sealing groove is adapted to the sealing gasket.

[0009] In order to improve the connection strength between flange plate 1 and pipeline 1, the utility model is improved in that a reinforcing rib 1 is installed at the connection between flange plate 1 and pipeline 1.

[0010] In order to improve the connection strength between the flange plate 2 and the pipeline 2, the utility model is improved in that a reinforcing rib 2 is installed at the connection between the flange plate 2 and the pipeline 2.

[0011] In order to improve the anti-slip property of the pull block, the utility model is improved in that an anti-slip strip is installed on the outer wall of the pull block.

[0012] In order to improve the anti-skid property of the protection strip, the utility model is improved in that the outer wall of the anti-skid strip is provided with anti-skid patterns.

[0013] In order to ensure the stability of the screw installation, the utility model is improved in that the bottom end of the screw is threadedly installed with a hexagonal nut.

[0014] Preferably, the utility model is improved in that the locking block is of arc-shaped design.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a flange-based connection structure, which has the following beneficial effects:

[0017] The flange-based connection structure can ensure, through the provided locking device, that the locking block can enter the annular groove after the screw passes through flange hole one and flange hole two. Since the arc-shaped locking block has a high degree of fit with the annular groove, once the locking block enters the annular groove and completes the locking, the contact area between them will be relatively large, thereby improving the locking stability. This greatly increases the stability of the pipeline connection and reduces the risk of loosening or falling off due to vibration or other external forces. This locking mechanism can prevent the connection from loosening or falling off due to vibration, pressure or other external factors.

[0018] The flange-based connection structure, through the provision of a sealing groove and a sealing gasket, and the adaptability design of the sealing gasket and the sealing groove can ensure that pipe one and pipe two are tightly fitted when connected, reduce or eliminate gaps, and thus significantly improve the sealing of the connection. This design can effectively prevent liquid or gas leakage at the pipe connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model from a first angle;

[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model from a second angle;

[0021] Figure 3 This is a schematic diagram of the three-dimensional structure of the pipeline 2 and the flange 2 of the utility model;

[0022] Figure 4 For the utility model Figure 3 A schematic diagram of the structure at the local A of the enlarged part;

[0023] Figure 5 This is a schematic diagram of a partially half-sectioned three-dimensional structure of the flange of the utility model;

[0024] Figure 6 For the utility model Figure 5 An enlarged structural diagram of part B.

[0025] In the figure: 1. Pipe 1; 2. Pipe 2; 3. Flange 1; 4. Flange 2; 5. Flange hole 1; 6. Flange hole 2; 7. Screw; 8. Annular groove; 9. Cylindrical groove; 10. Locking block; 11. Movable rod; 12. Spring; 13. Storage groove; 14. Pull block; 15. Through hole; 16. Sealing gasket; 17. Sealing groove; 18. Reinforcing rib 1; 19. Reinforcing rib 2; 20. Anti-slip strip. DETAILED DESCRIPTION

[0026] 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.

[0027] See also Figure 1-6A flange-based connection structure includes a pipe 1, a pipe 2, a flange 1, a flange 2, and a locking device. The bottom end of the pipe 1 is installed with the flange 1, the top end of the pipe 2 is installed with the flange 2, the flange 1 is provided with a flange hole 1, the flange 2 is provided with a flange hole 6, the flange hole 1 and the flange hole 6 are provided with screws 7, and the locking device includes an annular groove 8, a cylindrical groove 9, a locking block 10, a movable rod 11, a spring 12, a receiving groove 13 and a pull block 14. The middle outer wall of the screw rod 7 is provided with an annular groove 8, the end of the flange plate 2 4 away from the pipe 2 2 is provided with the cylindrical groove 9 penetrating the flange hole 2 6, the movable rod 11 is movably installed in the cylindrical groove 9, the outer wall of the movable rod 11 is sleeved with the spring 12, the cylindrical groove 9 is provided with the receiving groove 13 at one end close to the flange hole 2 6, the locking block 10 is slidably installed in the receiving groove 13, the locking block 10 is fixedly connected to one end of the movable rod 11, and the locking block 10 is adapted to the annular groove 8, The cylindrical groove 9 is provided with a through hole 15 at one end away from the locking block 10, and the movable rod 11 extends to the through hole 15 and the pull block 14 is installed outside. In this embodiment, when it is necessary to connect the pipe 1 and the pipe 2, first align the pipe 1 with the pipe 2, and then manually pull the pull block 14, so that the pull block 14 drives the movable rod 11 to move outward along the through hole 15, and compress the spring 12, so that the locking block 10 enters the receiving groove 13, and then the screw rod 7 is passed through the flange hole 1 and the flange hole 2 at one time, and then when the annular groove on the screw rod 7 is When 8 is aligned with the cylindrical groove 9, manually release the pull block 14. At the moment the pull block 14 is released, the spring 12 stretches to provide an outward thrust for the locking block 10. During the stretching process, the spring 12 drives the movable rod 11 to move in the direction of the screw 7. The movable rod 11 drives the locking block 10 to leave the receiving groove 13 and enter the annular groove 8 opened on the screw 7, thereby locking and limiting the screw 7. When it is necessary to disassemble or adjust the pipeline connection, by pulling the pull block 14, the movable rod 11 and the locking block 10 move into the receiving groove 13 and exit the annular groove 8, thereby releasing the lock.

[0028] In actual use, the sealing performance of the connection is further improved. In this embodiment, a sealing gasket 16 is installed at the bottom end of the pipe 1, and a sealing groove 17 is opened at the top end of the pipe 2. The sealing groove 17 is adapted to the sealing gasket 16. The adaptability design of the sealing gasket 16 and the sealing groove 17 can ensure that the pipe 1 and the pipe 2 are tightly fitted when connected, reduce or eliminate gaps, and thus significantly improve the sealing performance of the connection. This design can effectively prevent liquid or gas leakage at the pipe connection.

[0029] In actual use, in order to further improve the connection strength between flange 3 and pipe 1, in this embodiment, a reinforcing rib 18 is installed at the connection between flange 3 and pipe 1, and the reinforcing rib 18 can significantly increase the strength and stability of the connection between flange 3 and pipe 1.

[0030] In actual use, the connection strength between flange 2 4 and pipe 2 2 is further improved. In this embodiment, a reinforcing rib 19 is installed at the connection between flange 2 4 and pipe 2 2 . The reinforcing rib 19 can significantly increase the strength and stability of the connection between flange 2 4 and pipe 2 2 .

[0031] In actual use, the anti-slip property of the pull block 14 is further improved. In this embodiment, an anti-slip strip 20 is installed on the outer wall of the pull block 14. The anti-slip strip 20 can increase the friction between the pull block 14 and the hand. The design of the anti-slip strip 20 can enable the user to hold the pull block 14 more firmly during operation, reduce hand fatigue, and improve comfort.

[0032] In actual use, the anti-slip property of the protection strip is further improved. In this embodiment, the outer wall of the anti-slip strip 20 is installed with anti-slip patterns. The design of the anti-slip patterns makes the surface of the anti-slip strip 20 have more concave and convex textures. These textures can effectively increase the friction between the anti-slip strip 20, thereby effectively preventing slipping or falling.

[0033] In actual use, the stability of the installation of the screw rod 7 is further ensured. In this embodiment, the bottom end of the screw rod 7 is threadedly installed with a hexagonal nut. The design structure of the hexagonal nut determines that it can provide a stable fastening force, and its six faces provide a larger bearing area, so that the connection between the screw rod 7 and the flange 1 3 and the flange 2 4 is more stable, thereby increasing the stability of the overall structure.

[0034] Preferably, in the present embodiment, the locking block 10 is of arc-shaped design. Since the arc-shaped locking block 10 has a high degree of fit with the annular groove 8, once the locking block 10 enters the annular groove 8 and completes the locking, the contact area therebetween will be relatively large, thereby improving the locking stability. This design can ensure that the locking block 10 is not easily disengaged from the annular groove 8 when subjected to external force or vibration, thereby ensuring the reliability and safety of the connection.

[0035] In order to explain in detail the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects that can be achieved, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flange-based connection structure, comprising a pipe 1 (1), a pipe 2 (2), a flange 1 (3), a flange 2 (4) and a locking device, characterized in that: The bottom end of the pipe one (1) is provided with the flange one (3), the top end of the pipe two (2) is provided with the flange two (4), the flange one (3) is provided with a flange hole one (5), the flange two (4) is provided with a flange hole two (6), screws (7) are installed in the flange hole one (5) and the flange hole two (6), the locking device comprises an annular groove (8), a cylindrical groove (9), a locking block (10), a movable rod (11), a spring (12), a receiving groove (13) and a pulling block (14), the middle outer wall of the screw (7) is provided with an annular groove (8), the end of the flange two (4) away from the pipe two (2) is provided with a flange hole penetrating the flange hole The cylindrical groove (9) of the second (6) is provided with the movable rod (11) movably installed in the cylindrical groove (9), the outer wall of the movable rod (11) is sleeved with the spring (12), the cylindrical groove (9) is provided with the receiving groove (13) at one end close to the flange hole (6), the locking block (10) is slidably installed in the receiving groove (13), the locking block (10) is fixedly connected to one end of the movable rod (11), the locking block (10) is adapted to the annular groove (8), the cylindrical groove (9) is provided with a through hole (15) at one end away from the locking block (10), and the movable rod (11) is extended to the through hole (15) and the pulling block (14) is installed outside.

2. A flange-based connection structure according to claim 1, characterized in that: A sealing gasket (16) is installed at the bottom end of the pipe one (1), and a sealing groove (17) is opened at the top end of the pipe two (2), and the sealing groove (17) is adapted to the sealing gasket (16).

3. A flange-based connection structure according to claim 2, characterized in that: A reinforcing rib (18) is installed at the connection between the flange (3) and the pipe (1).

4. A flange-based connection structure according to claim 3, characterized in that: A reinforcing rib (19) is installed at the connection between the second flange (4) and the second pipe (2).

5. A flange-based connection structure according to claim 4, characterized in that: The outer wall of the pulling block (14) is provided with an anti-slip strip (20).

6. A flange-based connection structure according to claim 5, characterized in that: The outer wall of the anti-slip strip (20) is provided with anti-slip grooves.

7. A flange-based connection structure according to claim 6, characterized in that: The bottom end of the screw rod (7) is threadedly mounted with a hexagonal nut.

8. The flange-based connection structure according to claim 7, characterized in that: The locking block (10) is designed to be arc-shaped.

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