Multi-layer nestable telescopic metal corrugated pipe structure

Abstract

The utility model relates to the technical field of metal corrugated pipes, in particular to a multi-layer nestable telescopic metal corrugated pipe structure, which increases the structural strength, is convenient to fix and ensures the connection stability. Comprising a pipe body, two connecting sleeves, a clamping component and connecting components, the front end and the rear end of the pipe body are sleeved with the connecting sleeves, the connecting sleeves are connected with the pipe body through the clamping component, and the ends, away from each other, of the two connecting sleeves are provided with the matched connecting components.

Description

Technical Field

[0001] This utility model relates to the technical field of metal corrugated pipes, and in particular to a multi-layer nestable telescopic metal corrugated pipe structure. Background Technology

[0002] Corrugated pipes mainly include metal corrugated pipes, plastic corrugated pipes, corrugated expansion joints, corrugated heat exchange tubes, diaphragm boxes, and metal flexible hoses. Metal corrugated pipes are mainly used to compensate for pipeline thermal deformation, damping, and absorbing pipeline settlement deformation, and are widely used in petrochemical, instrumentation, aerospace, chemical, power, water conservancy, and metallurgical industries. Corrugated pipes made of other materials such as plastics play an irreplaceable role in media transportation, power wiring, machine tools, and home appliances. For example, the existing technology announcement CN205136857U proposes a multi-layer corrugated pipe, including an outer layer pipe, a second layer pipe, a third layer pipe, and an inner layer pipe. The outer layer pipe is convex and concave, forming a cavity between the outer layer pipe and the second layer pipe. The second, third, and inner layer pipes are circular pipes, each made of different materials for different functions. However, when the length is insufficient, the ends of the corrugated pipe need to be cut open, and then multiple sections of corrugated pipe need to be spliced ​​together. The steps are cumbersome and the operation is troublesome, and the fixation effect after splicing is not good. Summary of the Invention

[0003] To solve the above-mentioned technical problems, this utility model provides a multi-layer nestable telescopic metal corrugated pipe structure that increases structural strength, facilitates fixing, and ensures connection stability.

[0004] This utility model discloses a multi-layer nestable telescopic metal corrugated pipe structure, including a pipe body, two connecting sleeves, a clamping component, and a connecting component. The connecting sleeves are fitted at both ends of the pipe body, and the connecting sleeves are connected to the pipe body through the clamping component. Matching connecting components are installed at the ends of the two connecting sleeves that are far apart. The pipe body adopts a multi-layer structure, which increases the structural strength and prevents the corrugated pipe from being damaged under high pressure. The connecting sleeves are clamped to the pipe body through the clamping component. During installation, the two sections of the pipe body can be connected through the connecting component, which is convenient to use and easy to fix.

[0005] Preferably, the pipe body is composed of an inner lining layer, a rubber layer, and a corrugated wall. The rubber layer is located outside the inner lining layer, and the corrugated wall is located outside the rubber layer. The rubber layer can increase elasticity and prevent damage caused by thermal expansion and contraction. At the same time, the corrugated wall can maintain the shape of the pipe when it is squeezed. The pipe body adopts a multi-layer structure, which increases the structural strength and prevents the corrugated pipe from being damaged under high pressure.

[0006] Preferably, it also includes a fiber braided layer, which is located between the inner lining layer and the rubber layer; the fiber braided layer can enhance tensile strength and has better overall performance.

[0007] Preferably, the clamping component includes multiple screws and multiple clamping blocks. The connecting sleeve has multiple axially opened storage cavities inside. A screw is rotatably installed on the top of the storage cavity. The clamping blocks are located inside the storage cavity and are screwed onto the outer wall of the screw. Rotating the screw pushes the clamping blocks to extend out of the storage cavity. The connecting sleeve is clamped onto the pipe body by the cooperation of multiple clamping blocks with the corrugated wall.

[0008] Preferably, the connecting component includes a nest and a sealing ring. The nest is installed on the outer wall of the connecting sleeve, and the two nests fit together. The sealing ring is installed on the outer wall of the connecting sleeve, and a sealing groove is provided on the outer wall of the connecting sleeve. When the two pipes are connected, the two nests are connected and then fixed by an external locking sleeve. The sealing ring and sealing ring can ensure the sealing performance, and the nesting arrangement can ensure the connection stability.

[0009] Preferably, it also includes multiple adjusting nuts and multiple sets of guide rods. A recessed groove is provided on the outer wall of the connecting sleeve. The top of the screw is inserted into the recessed groove and an adjusting nut is installed. Guide rods are symmetrically installed in the receiving cavity about the screw. A sliding hole is provided on the locking block, and the guide rod is slidably installed in the sliding hole. The adjusting nut facilitates the operation of the screw rotation. When the locking block moves, it slides on the guide rod, which increases the structural strength and ensures stability.

[0010] Compared with the prior art, the advantages of this utility model are as follows: the pipe body adopts a multi-layer structure, which increases the structural strength and prevents the corrugated pipe from being damaged under high pressure. The connecting sleeve is connected to the pipe body by a snap-fit ​​component. During installation, the two sections of the pipe body can be connected by the connecting component, which is convenient to use and easy to fix. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the tube body of this utility model;

[0013] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0014] Figure 4 This is a schematic diagram of the cross-sectional structure of this utility model;

[0015] The following are labels in the attached diagram: 1. Pipe body; 2. Inner lining layer; 3. Fiber braided layer; 4. Rubber layer; 5. Corrugated wall; 6. Connecting sleeve; 7. Screw; 8. Adjusting nut; 9. Locking block; 10. Guide rod; 11. Nesting; 12. Sealing ring. Detailed Implementation

[0016] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0017] like Figures 1 to 4 As shown, the pipe body 1 is composed of an inner lining layer 2, a rubber layer 4, and a corrugated wall 5. The rubber layer 4 is located outside the inner lining layer 2, and the corrugated wall 5 is located outside the rubber layer 4. The fiber braided layer 3 is located between the inner lining layer 2 and the rubber layer 4. Connecting sleeves 6 are fitted at both ends of the pipe body 1. Multiple storage cavities are axially opened inside the connecting sleeves 6. A screw 7 is rotatably installed on the top of the storage cavity. A locking block 9 is located inside the storage cavity and is screwed onto the outer wall of the screw 7. A nest 11 is installed on the outer wall of the connecting sleeve 6. The two nests 11 are fitted together. A sealing ring 12 is installed on the outer wall of the connecting sleeve 6, and a sealing groove is provided on the outer wall of the connecting sleeve 6. A recessed groove is opened on the outer wall of the connecting sleeve 6. An adjusting nut 8 is installed on the top of the screw 7 through the recessed groove. A guide rod 10 is symmetrically installed in the storage cavity about the screw 7. A sliding hole is opened on the locking block 9, and the guide rod 10 is slidably installed in the sliding hole.

[0018] The rubber layer 4 adds elasticity and prevents damage caused by thermal expansion and contraction. Meanwhile, the corrugated wall 5 maintains the pipe shape when compressed. The fiber braided layer 3 enhances tensile strength and provides better overall performance. The pipe body 1 adopts a multi-layer structure, which increases structural strength and prevents the corrugated pipe from being damaged under high pressure. Rotating the screw 7 pushes the locking block 9 out of the receiving cavity. Multiple locking blocks 9 cooperate with the corrugated wall 5 to lock the connecting sleeve 6 onto the pipe body 1. When two pipe bodies 1 are connected, the two nested sets 11 are fitted together and then fixed by the external locking sleeve. The sealing ring 12 and sealing ring ensure sealing. The nested setting ensures connection stability. The adjusting nut 8 facilitates the rotation of the screw 7. When the locking block 9 moves, it slides on the guide rod 10, which increases structural strength and ensures stability.

[0019] like Figures 1 to 4As shown, this utility model discloses a multi-layer nestable telescopic metal corrugated pipe structure. During operation, when two pipe bodies 1 are connected, rotating the screw 7 pushes the locking block 9 to extend out of the receiving cavity. Through the cooperation of multiple locking blocks 9 and corrugated wall 5, the connecting sleeve 6 is locked onto the pipe body 1, and the two nests 11 are fitted and connected. Then, it is fixed by the external locking sleeve. The sealing ring 12 and sealing ring can ensure the sealing performance. The screw 7 can be rotated by adjusting the nut 8. When the locking block 9 moves, it slides on the guide rod 10, which increases the structural strength. The pipe body 1 is composed of an inner lining layer 2, a rubber layer 4 and a corrugated wall 5. The rubber layer 4 can add elasticity and prevent damage caused by thermal expansion and contraction. At the same time, the corrugated wall 5 can maintain the pipe shape when compressed. The fiber braided layer 3 can enhance the tensile strength and has better overall performance.

[0020] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A multi-layer nestable telescopic metal bellows structure, characterized by, The utility model relates to a pipe body (1), two connecting sleeves (6), clamping components and connecting components, the pipe body (1) is sleeved with connecting sleeve (6) at two ends, connecting sleeve (6) is connected with pipe body (1) through clamping components, and the two connecting sleeves (6) are provided with matched connecting components at the end away from each other.

2. A multi-layer nestable telescopic metal bellows structure as claimed in claim 1, wherein, The pipe body (1) is composed of an inner lining layer (2), a rubber layer (4) and a corrugated wall (5), the rubber layer (4) is located outside the inner lining layer (2), and the corrugated wall (5) is outside the rubber layer (4).

3. A multi-layer nestable telescopic metal bellows structure as claimed in claim 2, wherein, It also includes a fiber woven layer (3) between the inner lining layer (2) and the rubber layer (4).

4. A multi-layer nestable telescopic metal bellows structure as claimed in claim 1, wherein, The clamping components include a plurality of screw rods (7) and a plurality of clamping blocks (9), the connecting sleeve (6) is axially provided with a plurality of receiving cavities inside, the screw rod (7) is rotatably installed on the top of the receiving cavity, the clamping block (9) is located in the receiving cavity, and the clamping block (9) is screwed on the outer wall of the screw rod (7).

5. A multi-layer nestable telescopic metal bellows structure as defined in claim 1, wherein, The connecting components include a nest (11) and a sealing ring (12), the connecting sleeve (6) is provided with the nest (11) on the outer wall, the front and rear nests (11) are nested and sleeved, the connecting sleeve (6) is provided with the sealing ring (12) on the outer wall, and the connecting sleeve (6) is provided with a sealing groove on the outer wall.

6. A multi-layer nestable telescopic metal bellows structure as claimed in claim 4, wherein, It also includes a plurality of adjusting nuts (8) and a plurality of groups of guide rods (10), the connecting sleeve (6) is provided with a sunken groove on the outer wall, the screw rod (7) is provided with the adjusting nut (8) on the top penetrating into the sunken groove, the receiving cavity is symmetrically provided with the guide rod (10) about the screw rod (7), the clamping block (9) is provided with a sliding hole, and the guide rod (10) is slidingly installed in the sliding hole.

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