Expandable sealing device for pipeline butt joint

Abstract

The utility model relates to the field of pipeline butt joint, in particular to an expandable sealing device for a pipeline butt joint position. The utility model provides the sealing device for the joint of the expandable pipeline, which can be used for installing the expandable pipeline, is simple to operate, facilitates the replacement, assembly and disassembly of the expandable pipeline, has a good sealing effect and improves the convenience of using the device. An expandable pipeline butt joint sealing device comprises connecting pipes, an expandable pipeline, screws and the like, the connecting pipes are clamped to the left portion and the right portion of the expandable pipeline, and the screws are rotationally connected to the front portion and the rear portion of the expandable pipeline. The expansion type pipeline is moved upwards, so that the expansion type pipeline makes contact with the connecting pipe on the left side, the connecting block moves, the expansion type pipeline is clamped with the connecting pipe, the connecting block moves and resets to be clamped with the clamping block, and therefore the expansion type pipeline can be installed, operation is easy, replacement, assembly and disassembly of the expansion type pipeline are convenient, and the sealing effect is good; and the convenience of using the device is improved.

Description

Technical Field

[0001] The utility model relates to the field of pipeline docking, in particular to an expandable sealing device for pipeline docking joints. Background Art

[0002] An expandable pipeline, also known as a telescopic pipeline or an expansion pipe, is a pipeline designed to automatically adjust its size when the temperature changes. This kind of pipeline is usually made of special materials, such as polyurethane foam, rubber or materials with shape memory alloy, and they have good elasticity and matching thermal expansion coefficients.

[0003] For the existing docking of expandable pipelines, the expandable pipeline is contacted with other pipelines, and then the expandable pipeline and other pipelines are fixed by multiple screws. A sealing ring is placed at the pipeline connection for sealing. When it is necessary to disassemble or replace the expandable pipeline, it is necessary to manually turn the screws repeatedly for disassembly, and the operation is relatively troublesome, which is inconvenient for the replacement and loading / unloading of the pipeline, resulting in a reduction in the convenience of equipment use.

[0004] Therefore, it is necessary to design an expandable sealing device for pipeline docking joints that can install expandable pipelines, has a simple operation, is convenient for the replacement and loading / unloading of expandable pipelines, has a good sealing effect, and improves the convenience of using this device. Summary of the Utility Model

[0005] In order to overcome the disadvantages that when it is necessary to disassemble or replace the expandable pipeline, it is necessary to manually turn the screws repeatedly for disassembly, the operation is relatively troublesome, it is inconvenient for the replacement and loading / unloading of the pipeline, and the convenience of equipment use is reduced, the utility model provides an expandable sealing device for pipeline docking joints that can install expandable pipelines, has a simple operation, is convenient for the replacement and loading / unloading of expandable pipelines, has a good sealing effect, and improves the convenience of using this device.

[0006] The technical implementation solution of the utility model is: an expandable sealing device for pipeline docking joints, which includes a connecting pipe, an expandable pipeline, screw rods, nuts and sealing rings. Connecting pipes are clamped at both the left and right parts of the expandable pipeline. Screw rods are rotatably connected to both the front and rear parts of the expandable pipeline. Left and right groups of nuts are threadedly connected to the screw rods, and each group consists of two nuts. Sealing rings are connected inside the connecting pipes, and the sealing rings are all in contact with the expandable pipeline.

[0007] As a preferred technical solution of the utility model, the nuts are all hexagonal.

[0008] As a preferred technical solution of the utility model, the sealing ring is made of rubber material and has good elasticity and wear resistance.

[0009] As a preferred technical solution of the present utility model, it further includes a clamping block, a guide rod, a connecting block and a first telescopic spring. Clamping blocks are connected to the connecting pipes. A plurality of guide rods are connected to the left and right parts of the expandable pipe. Connecting blocks are slidably connected between adjacent two guide rods. The connecting blocks are clamped with the adjacent clamping blocks. Two first telescopic springs are connected between the guide rods and the adjacent connecting blocks.

[0010] As a preferred technical solution of the present utility model, the connecting blocks are all L-shaped.

[0011] As a preferred technical solution of the present utility model, it further includes a support block, a guide rail, a limiting block and a second telescopic spring. Support blocks are connected to the outer sides of the connecting pipes. Guide rails are connected to the front and rear parts of the support blocks. Limiting blocks are slidably connected between the guide rails. Second telescopic springs are connected between the support blocks and the adjacent limiting blocks.

[0012] Beneficial effects: 1. The present utility model moves the expandable pipe upward, so that the expandable pipe contacts the connecting pipe on the left, causing the connecting block to move, enabling the expandable pipe to be clamped with the connecting pipe. The connecting block moves back to be clamped with the clamping block, thereby enabling the installation of the expandable pipe. The operation is simple, facilitating the replacement, loading and unloading of the expandable pipe, with good sealing effect and improving the convenience of using this device.

[0013] 2. During the docking process of the present utility model, the limiting block contacts the connecting block, and the second telescopic spring is compressed, thereby being able to fix the connecting block and preventing the connecting block from shifting during use, improving the stability of using this device. Description of the Drawings

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model.

[0015] Figure 2 It is a sectional three-dimensional structural schematic diagram of the present utility model.

[0016] Figure 3 It is a three-dimensional structural schematic diagram of the connecting mechanism of the present utility model.

[0017] Figure 4 It is a three-dimensional structural schematic diagram of the limiting mechanism of the present utility model.

[0018] Among them: 1 - connecting pipe, 2 - expandable pipe, 3 - screw, 4 - nut, 5 - sealing ring, 6 - clamping block, 7 - guide rod, 8 - connecting block, 9 - first telescopic spring, 10 - support block, 11 - guide rail, 12 - limiting block, 13 - second telescopic spring. Detailed Embodiment

[0019] The present utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments, but it is not intended to limit the present utility model.

[0020] An expandable sealing device for pipeline joints, as Figures 1 - 4 shown, comprising a connecting pipe 1, an expandable pipeline 2, a screw rod 3, a nut 4, a sealing ring 5, a clamping block 6, a guide rod 7, a connecting block 8, a first telescopic spring 9, a support block 10, a guide rail 11, a limiting block 12 and a second telescopic spring 13. Connecting pipes 1 are clamped on both the left and right sides of the expandable pipeline 2. Screw rods 3 are rotatably connected to both the front and rear parts of the expandable pipeline 2. Left and right groups of nuts 4 are threadedly connected to the screw rods 3, and each group consists of two nuts 4. The nuts 4 are all hexagonal. Sealing rings 5 are connected inside the connecting pipes 1. The sealing rings 5 are made of rubber, having good elasticity and wear resistance. The sealing rings 5 are all in contact with the expandable pipeline 2. Clamping blocks 6 are connected to the connecting pipes 1. Six guide rods 7 are connected to both the left and right sides of the expandable pipeline 2. Connecting blocks 8 are slidably connected between adjacent two guide rods 7. The connecting blocks 8 are all clamped with the adjacent clamping blocks 6. The connecting blocks 8 are all L-shaped. Two first telescopic springs 9 are connected between the guide rods 7 and the adjacent connecting blocks 8. Support blocks 10 are connected to the outer sides of the connecting pipes 1. Guide rails 11 are connected to both the front and rear parts of the support blocks 10. Limiting blocks 12 are slidably connected between the guide rails 11. Second telescopic springs 13 are connected between the support blocks 10 and the adjacent limiting blocks 12.

[0021] When it is necessary to seal the joint of the expandable pipe 2, the device can be used and brought to the place where the joint of the expandable pipe 2 needs to be sealed. Then the screw rod 3 is turned by hand, and the nut 4 is moved under the action of the thread to adjust the length of the expandable pipe 2. Then the expandable pipe 2 is moved upward so that the expandable pipe 2 contacts the connecting pipe 1 on the left, so that the connecting block 8 on the left moves upward along the guide rod 7 on the left, the first telescopic spring 9 is squeezed, so that the expandable pipe 2 is clamped with the connecting pipe 1 on the left, and then the first telescopic spring 9 rebounds, and the connecting block 8 on the left moves and resets to clamp the clamping block 6 on the left. The connecting blocks 8 are all L-shaped, and then the connecting pipe 1 on the right is moved upward to dock with the expandable pipe 2, so that the connecting block 8 on the right moves upward along the guide rod 7 on the right, the first telescopic spring 9 is squeezed, so that the expandable pipe 2 is clamped with the connecting pipe 1 on the right, and then the first telescopic spring 9 rebounds, and the connecting block 8 on the right moves and resets to clamp the clamping block 6 on the right , so that the expandable pipe 2 is in contact with the sealing ring 5 for sealing. The sealing ring 5 is made of rubber material and has good elasticity and wear resistance, so that the expandable pipe 2 can be installed, the operation is simple, and the expansion pipe 2 is convenient for replacement and loading and unloading. The sealing effect is good, which improves the convenience of using the device. During the docking process, the limiting block 12 contacts the connecting block 8, and the second telescopic spring 13 is squeezed, so that the connecting block 8 can be fixed to prevent the connecting block 8 from shifting during use, thereby improving the stability of using the device. When the expandable pipe 2 needs to be replaced, the limiting block 12 is pushed by hand, the second telescopic spring 13 is squeezed, and then the connecting block 8 is pulled upward to move, the first telescopic spring 9 is squeezed, and then the connecting pipe 1 is pulled out, so that the expandable pipe 2 is separated from the sealing ring 5, and then the connecting block 8 can be loosened, the first telescopic spring 9 rebounds, the connecting block 8 moves and resets, the limiting block 12 is loosened, the second telescopic spring 13 rebounds, the limiting block 12 moves and resets, and then the expandable pipe 2 can be replaced.

[0022] The technical principles of the embodiments of the present utility model are described above in combination with specific embodiments. These descriptions are only for explaining the principles of the embodiments of the present utility model, and cannot be interpreted in any way as limiting the protection scope of the embodiments of the present utility model. Based on the explanations here, technicians in this field can think of other specific implementation methods of the embodiments of the present utility model without creative work, and these methods will fall within the protection scope of the embodiments of the present utility model.

Claims

1. An expandable pipe joint sealing device, characterized in that: The invention comprises a connecting pipe (1), an expansion pipe (2), a screw (3), a nut (4) and a sealing ring (5). The left and right parts of the expansion pipe (2) are both clamped with the connecting pipe (1). The front and rear parts of the expansion pipe (2) are both rotatably connected with the screw (3). The screw (3) is threadedly connected with two groups of nuts (4) on the left and right, each group consisting of two nuts (4). The inside of the connecting pipe (1) is connected with a sealing ring (5), and the sealing ring (5) is in contact with the expansion pipe (2).

2. An expandable pipe joint sealing device as claimed in claim 1, characterized in that: The nuts (4) are all hexagonal.

3. An expandable pipe joint sealing device as claimed in claim 2, characterized in that: The sealing ring (5) is made of rubber.

4. The expandable pipe joint sealing device according to claim 3, characterized in that: The invention also comprises a clamping block (6), a guide rod (7), a connecting block (8) and a first telescopic spring (9); the connecting pipe (1) is connected to the clamping block (6); the left and right parts of the expandable pipe (2) are connected to a plurality of guide rods (7); a connecting block (8) is slidably connected between two adjacent guide rods (7); the connecting blocks (8) are clamped to adjacent clamping blocks (6); and two first telescopic springs (9) are connected between the guide rods (7) and the adjacent connecting blocks (8).

5. The expandable pipe joint sealing device according to claim 4, characterized in that: The connecting blocks (8) are all L-shaped.

6. The expandable pipe joint sealing device according to claim 5, characterized in that: The invention also comprises a support block (10), a guide rail (11), a limiting block (12) and a second telescopic spring (13); the outer side of the connecting tube (1) is connected to the support block (10); the front and rear parts of the support block (10) are connected to the guide rail (11); the limiting blocks (12) are slidably connected between the guide rails (11); and the second telescopic spring (13) is connected between the support block (10) and the adjacent limiting block (12).

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