Loop flange convenient for replacing plug corrugated pipe

Abstract

The utility model discloses a lap joint flange convenient for replacing a plug corrugated pipe, which belongs to the technical field of pipeline connection and comprises two groups of flange bodies, hoops are rotatably mounted in the two groups of flange bodies, movable sleeves are fixedly mounted on the inner sides of the two groups of hoops, communicating pipes are propped against the interiors of the two groups of movable sleeves, and the communicating pipes are connected with the two groups of flange bodies. The same corrugated pipe body is fixedly installed on the outer sides of the two sets of communicating pipes, pressing plates are slidably installed on the outer sides of the two sets of communicating pipes, two sets of moving plates are slidably installed in the two sets of movable sleeves, and two sets of moving bases are slidably installed on one sides of the two sets of movable sleeves. And the locking of the communicating pipe is relieved, so that the use of a large number of tools and complicated operation steps are reduced, the disassembly time is greatly shortened, and the maintenance efficiency is improved. In industrial production and other scenes, the quick maintenance of the pipeline system can effectively reduce the downtime of equipment and reduce the influence on the production process.

Description

Technical Field

[0001] This utility model relates to the field of pipeline connection technology, and in particular to a loose flange that facilitates the replacement of the plug bellows. Background Technology

[0002] In many industrial piping systems and some civil piping installations, corrugated pipes are often used to compensate for thermal expansion and contraction, absorb vibration, or accommodate a certain degree of pipe displacement. Plug-in corrugated pipes, as one common type, typically require flanges for reliable sealing and connection when connected to pipes.

[0003] Traditional flange connections often present challenges in replacing plug-in bellows, resulting in cumbersome and time-consuming operations. This is because the connection between the traditional flange and the bellows is tight and fixed, which can damage the bellows or flange during disassembly. Furthermore, reinstallation requires high precision and complex procedures, increasing maintenance costs and time, and potentially affecting the normal operation of the entire piping system. Therefore, we propose a loose flange that facilitates the replacement of plug-in bellows to solve this problem. Utility Model Content

[0004] The purpose of this utility model is to provide a loose flange that facilitates the replacement of the plug bellows, so as to solve the problems mentioned in the background art.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A loose flange for easy replacement of the plug bellows includes: two sets of flange bodies, each set of flange bodies having a clamp rotatably installed inside; each set of clamps having a loose sleeve fixedly installed inside; each set of loose sleeves having a connecting pipe abutting inside; each set of connecting pipes having a bellows body fixedly installed outside; each set of connecting pipes having a pressure plate slidably installed outside; each set of loose sleeves having two sets of movable plates slidably installed inside; each set of loose sleeves having two sets of movable seats slidably installed on one side; each set of movable plates having a locking block fixedly installed on one side; two sets of locking blocks located on the same side being movably inserted into the outside of the connecting pipe; each set of movable plates having a return spring fixedly installed on one side; and each set of movable seats having a diagonal rod fixedly installed on one side.

[0007] Preferably, a fixing plate is fixedly installed on the outer side of both sets of the loose sleeves, and two sets of limiting rods are fixedly installed on one side of both sets of the fixing plates. The two sets of limiting rods on the same side are slidably installed in the corresponding pressure plates, and the two sets of diagonal rods on the same side are slidably installed inside the pressure plates. Multiple sets of bolt holes are opened inside the flanges of both sets.

[0008] Preferably, each of the two sets of sleeves has two sets of limiting grooves inside, the four sets of moving plates are slidably installed in the corresponding limiting grooves, and one end of each of the four sets of reset springs is fixedly installed on one side of the corresponding limiting groove.

[0009] Preferably, each of the two sets of slip sleeves has two sets of movable grooves at one end, and the four sets of movable seats are slidably installed in the corresponding movable grooves.

[0010] Preferably, the two sets of pressure plates have two sets of inclined grooves and two sets of guide grooves inside, the two sets of limiting rods are slidably installed in the corresponding guide grooves, and the four sets of inclined rods are slidably installed in the corresponding inclined grooves.

[0011] Preferably, the outer sides of both sets of connecting pipes are provided with slots, and the four sets of locking blocks are movably engaged in the corresponding slots.

[0012] In this utility model, a loose flange that facilitates the replacement of the plug bellows is provided by bolting two sets of flange bodies to other corresponding pipe components through multiple sets of bolt holes inside. By setting a clamp to rotate within the flange body, the connection angle can be adjusted flexibly, ensuring that the flange body is fixed in position and tightly connected in the pipeline system, and providing basic support for the subsequent installation of bellows body and other components.

[0013] This utility model features a reasonable structural design. Through the cooperation of a pressure plate, a limiting rod, and a fixed plate, the pressure plate moves stably under the limiting rod. Then, two sets of corresponding inclined rods drive the corresponding moving seats and moving plates to move relative to each other within corresponding guide grooves and moving grooves. The retraction of the return spring causes the two sets of corresponding locking blocks to move relative to each other, simultaneously disengaging from the connecting pipe's slot and releasing the locking of the connecting pipe. This allows for easy and quick disassembly of the bellows body. The elastic force of the return spring enables quick replacement of the bellows body without external force. The clamps rotating within the flange body allow for flexible adjustment of the angle of the slip sleeve and bellows, ensuring better connection with adjacent pipes. The coordinated action of multiple components disengages the locking blocks from the connecting pipe's slot, releasing the locking of the connecting pipe. This reduces the use of numerous tools and complex operating steps, significantly shortening disassembly time and improving maintenance efficiency. In industrial production and other scenarios, rapid maintenance of pipeline systems can effectively reduce equipment downtime and minimize the impact on production processes. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a loose flange for easy replacement of the plug bellows proposed in this utility model.

[0015] Figure 2This is a cross-sectional view of a loose flange for easy replacement of the plug bellows proposed in this utility model.

[0016] Figure 3 for Figure 2 A magnified view of part A in the middle.

[0017] In the diagram: 1. Corrugated pipe body; 2. Connecting pipe; 3. Loose sleeve; 4. Clamp; 5. Flange body; 6. Pressure plate; 7. Diagonal bar; 8. Moving seat; 9. Moving plate; 10. Locking block; 11. Return spring; 12. Fixing plate; 13. Limiting rod; 14. Guide groove; 15. Moving groove; 16. Bolt hole. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Reference Figure 1-3 A loose flange for easy replacement of the plug bellows includes: two sets of flange bodies 5, each set of flange bodies 5 having a clamp 4 rotatably installed inside, each set of clamps 4 having a loose sleeve 3 fixedly installed inside, each set of loose sleeves 3 having a connecting pipe 2 abutting inside, each set of connecting pipes 2 having the same bellows body 1 fixedly installed outside, each set of connecting pipes 2 having a pressure plate 6 slidably installed outside, each set of loose sleeves 3 having two sets of moving plates 9 slidably installed inside, each set of loose sleeves 3 having two sets of moving seats 8 slidably installed on one side, each set of moving plates 9 having a locking block 10 fixedly installed on one side, the two sets of locking blocks 10 located on the same side being movably inserted into the outside of the connecting pipe 2, each set of moving plates 9 having a return spring 11 fixedly installed on one side, and each set of moving seats 8 having a diagonal rod 7 fixedly installed on one side.

[0020] In this embodiment, a fixing plate 12 is fixedly installed on the outer side of both sets of loose sleeves 3. Two sets of limiting rods 13 are fixedly installed on one side of both sets of fixing plates 12. The two sets of limiting rods 13 located on the same side are slidably installed in the corresponding pressure plate 6. The two sets of diagonal rods 7 located on the same side are slidably installed inside the pressure plate 6. Multiple sets of bolt holes 16 are opened inside both sets of flanges. The presence of the limiting rods 13 allows the pressure plate 6 to be firmly fixed on the outer side of the loose sleeve 3 and will not easily displace due to external force.

[0021] In this embodiment, two sets of limiting grooves are provided inside the two sets of loose sleeves 3, and four sets of moving plates 9 are slidably installed in the corresponding limiting grooves. One end of the four sets of reset springs 11 is fixedly installed on one side of the corresponding limiting groove, so as to prevent the moving plates 9 from moving irregularly due to external force, such as tilting or twisting.

[0022] In this embodiment, two sets of movable slots 15 are provided at one end of each of the two sets of slip sleeves 3, and four sets of movable seats 8 are slidably installed in the corresponding movable slots 15. This precise motion trajectory restricts the degree of freedom of the movable seats 8, making their movement predictable and directional.

[0023] In this embodiment, the interior of the two sets of pressure plates 6 is provided with two sets of inclined grooves and two sets of guide grooves 14. The two sets of limiting rods 13 are slidably installed in the corresponding guide grooves 14, and the four sets of inclined rods 7 are slidably installed in the corresponding inclined grooves, which ensures the relative positional accuracy between the pressure plates 6 and the loose sleeve 3.

[0024] In this embodiment, slots are provided on the outer sides of both sets of connecting pipes 2, and four sets of locking blocks 10 are movably engaged in the corresponding slots. The cooperation between the slots and the locking blocks 10 provides precise positioning for the connecting pipes 2, preventing them from shifting in the axial and radial directions.

[0025] In this embodiment, during use, the two sets of flange bodies 5 are first bolted to other corresponding pipe components through multiple sets of bolt holes 16 inside. When it is necessary to disassemble the bellows body 1, it is only necessary to move the pressure plate 6 relative to it under the restriction of the limit rod 13 and the fixed plate 12. Then, the corresponding two sets of inclined rods 7 drive the corresponding moving seat 8 and moving plate 9 to move relative to each other in the corresponding guide groove 14 and moving groove 15. The return spring 11 retracts, thereby driving the corresponding two sets of locking blocks 10 to move relative to each other, thereby simultaneously disengaging from the locking groove of the connecting pipe 2 and releasing the locking of the connecting pipe 2. Thus, the bellows body 1 can be easily and quickly disassembled. Under the elastic force of the return spring 11, the bellows body 1 can be quickly replaced without external force. By setting the clamp 4 to rotate inside the flange body 5, the angle of the loose sleeve 3 and the bellows can be flexibly adjusted so that it can be better connected with the adjacent pipe.

[0026] The above provides a detailed description of the loose flange for easy replacement of the plug bellows provided by this utility model. Specific embodiments have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only intended to help understand the method and core idea of ​​this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A loose flange for easy replacement of the plug bellows, characterized in that, include: Two sets of flange bodies (5), each set of flange bodies (5) is rotatably installed with clamps (4), each set of clamps (4) is fixedly installed with a loose sleeve (3) on the inner side, each set of loose sleeves (3) is abutted against a connecting pipe (2) on the inner side, each set of connecting pipes (2) is fixedly installed with the same bellows body (1) on the outer side, each set of connecting pipes (2) is slidably installed with a pressure plate (6) on the outer side, each set of loose sleeves (3) is slidably installed with two sets of moving plates (9), each set of loose sleeves (3) is slidably installed with two sets of moving seats (8) on one side, each set of moving plates (9) is fixedly installed with a locking block (10) on one side, each set of locking blocks (10) on the same side is movably inserted into the outer side of the connecting pipe (2), each set of moving plates (9) is fixedly installed with a return spring (11) on one side, and each set of moving seats (8) is fixedly installed with a diagonal rod (7) on one side.

2. The loose flange for easy replacement of the plug bellows according to claim 1, characterized in that, A fixing plate (12) is fixedly installed on the outer side of both sets of the loose sleeves (3). Two sets of limiting rods (13) are fixedly installed on one side of both sets of the fixing plates (12). The two sets of limiting rods (13) located on the same side are slidably installed in the corresponding pressure plate (6). The two sets of diagonal rods (7) located on the same side are slidably installed inside the pressure plate (6). Multiple sets of bolt holes (16) are opened inside the flanges of both sets.

3. The loose flange for easy replacement of the plug bellows according to claim 1, characterized in that, Both sets of the slip sleeves (3) have two sets of limiting grooves inside. The four sets of moving plates (9) are slidably installed in the corresponding limiting grooves. One end of the four sets of reset springs (11) is fixedly installed on one side of the corresponding limiting groove.

4. The loose flange for easy replacement of the plug bellows according to claim 1, characterized in that, Two sets of movable slots (15) are provided at one end of each of the two sets of movable sleeves (3), and the four sets of movable seats (8) are slidably installed in the corresponding movable slots (15).

5. A loose flange for easy replacement of the plug bellows according to claim 2, characterized in that, The two sets of pressure plates (6) have two sets of inclined grooves and two sets of guide grooves (14) inside. The two sets of limiting rods (13) are slidably installed in the corresponding guide grooves (14), and the four sets of inclined rods (7) are slidably installed in the corresponding inclined grooves.

6. A loose flange for easy replacement of the plug bellows according to claim 1, characterized in that, Both sets of the connecting pipes (2) have slots on their outer sides, and the four sets of the locking blocks (10) are movably locked into the corresponding slots.

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