Lift pipe connecting mechanism

Abstract

The utility model discloses a lifting pipe connecting mechanism which comprises an inner connecting pipe and an outer connecting pipe, the inner connecting pipe is connected with the outer connecting pipe in a sliding and inserted mode, an outer flexible sealing cylinder is connected to the circumferential inner wall of the outer connecting pipe in a clamped mode, and a plurality of connecting ring grooves are formed in the circumferential inner wall of the outer flexible sealing cylinder. And the circumferential outer wall of the inner connecting pipe is sleeved with an inner flexible sealing cylinder, the circumferential outer wall of the inner flexible sealing cylinder is fixedly connected with a plurality of pointed-end rings, the pointed-end rings are connected with the connecting ring grooves in a clamped mode, the circumferential outer wall of the inner connecting pipe is fixedly connected with a plurality of front connecting blocks, and the circumferential outer wall of the outer connecting pipe is fixedly connected with a plurality of rear connecting blocks. The inner connecting pipe and the outer connecting pipe are slidably connected in an inserted mode, meanwhile, the inner flexible sealing cylinder and the outer flexible sealing cylinder are connected in an inserted mode, the pointed-end ring and the connecting ring groove are connected in a clamped mode, and therefore the inner connecting pipe and the outer connecting pipe are fixed to the outer side of the connecting position of the two lifting pipes, and a gap is prevented from being reserved in the connecting position of the two lifting pipes.

Description

Technical Field

[0001] The utility model relates to the technical field of petrochemical industry, in particular to a lifting pipe connecting mechanism. Background Art

[0002] Currently, in the petrochemical industry, risers are used to transport solid-liquid-gas mixtures.

[0003] However, during the connection process of the existing riser, it is difficult to connect the riser because there is a hidden danger of gaps at the joints of the two connected riser sections. Therefore, in order to advance the technology in the industry, better realize the connection function of the riser, and improve the competitiveness of core technologies, the present application proposes a new implementation scheme for the riser connection that is different from the prior art. Utility Model Content

[0004] The utility model aims to solve the problem that during the connection process of the existing lifting pipes, the lifting pipes are inconvenient to connect because of the hidden danger of gaps at the joints of the two connected lifting pipes, and proposes a lifting pipe connecting mechanism.

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

[0006] A lifting pipe connection mechanism comprises an inner connecting pipe and an outer connecting pipe, wherein the inner connecting pipe is slidably plugged into the outer connecting pipe, the circumferential inner wall of the outer connecting pipe is clamped with an outer flexible sealing cylinder, the circumferential inner wall of the outer flexible sealing cylinder is provided with a plurality of connecting ring grooves, the circumferential outer wall of the inner connecting pipe is sleeved with the inner flexible sealing cylinder, the circumferential outer wall of the inner flexible sealing cylinder is fixedly connected with a plurality of pointed rings, the pointed rings are clamped with the connecting ring grooves, the circumferential outer wall of the inner connecting pipe is fixedly connected with a plurality of front connecting blocks, the circumferential outer wall of the outer connecting pipe is fixedly connected with a plurality of rear connecting blocks, a threaded rod is inserted between the front connecting block and the rear connecting block, and a plurality of fixing nuts are threadedly sleeved on both ends of the threaded rod.

[0007] Furthermore, a connecting hoop is sleeved on the circumferential outer wall of the outer flexible sealing cylinder.

[0008] Furthermore, one end of the outer flexible sealing cylinder is fixedly connected to a limiting ring.

[0009] Furthermore, a plurality of supporting ribs are fixedly connected between the inner connecting tube and the front connecting block and between the outer connecting tube and the rear connecting block.

[0010] Furthermore, one end of the inner connecting tube and one end of the outer connecting tube are both clamped with a sealing gasket.

[0011] The beneficial effects of the utility model are:

[0012] 1. By slidingly plugging the inner connecting tube with the outer connecting tube, plugging the inner flexible sealing tube with the outer flexible sealing tube, and engaging the pointed ring with the connecting ring groove, the inner connecting tube and the outer connecting tube are fixed on the outside of the connection between the two lifting tubes, thereby avoiding a gap at the connection between the two lifting tubes.

[0013] 2. The inner connecting pipe and the outer connecting pipe are fixed by inserting the threaded rod between the front connecting block and the rear connecting block and then tightening the fixing nut. The operation is simple, convenient and quick.

[0014] 3. The support ribs can improve the firmness of the connection between the front connection block and the inner connection pipe and between the rear connection block and the outer connection pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a right-side three-dimensional structural schematic diagram of a lifting pipe connection mechanism proposed by the utility model;

[0016] Figure 2 This is a cross-sectional structural schematic diagram of a lifting pipe connection mechanism proposed by the utility model;

[0017] Figure 3 This is a left-side three-dimensional structural schematic diagram of a lifting pipe connection mechanism proposed by the utility model;

[0018] Figure 4 This is a schematic cross-sectional structure diagram of the elongation operation of the connection structure of a lifting pipe connection mechanism proposed by the utility model.

[0019] In the figure: 1. inner connecting pipe; 2. outer connecting pipe; 3. outer flexible sealing cylinder; 4. connecting ring groove; 5. inner flexible sealing cylinder; 6. pointed ring; 7. front connecting block; 8. rear connecting block; 9. threaded rod; 10. fixing nut; 11. connecting hoop; 12. limiting ring; 13. supporting rib; 14. sealing gasket. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figure 1-Figure 4A lifting pipe connection mechanism comprises an inner connecting pipe 1 and an outer connecting pipe 2, wherein the inner connecting pipe 1 is slidably plugged with the outer connecting pipe 2, an outer flexible sealing cylinder 3 is clamped on the circumferential inner wall of the outer connecting pipe 2, a plurality of connecting ring grooves 4 are arranged on the circumferential inner wall of the outer flexible sealing cylinder 3, an inner flexible sealing cylinder 5 is sleeved on the circumferential outer wall of the inner connecting pipe 1, a plurality of pointed rings 6 are integrally formed on the circumferential outer wall of the inner flexible sealing cylinder 5, and the pointed rings 6 are clamped with the connecting ring grooves 4, the inner connecting pipe 1 is slidably plugged with the outer connecting pipe 2, and the inner flexible sealing cylinder 5 is plugged with the outer flexible sealing cylinder 3, and the pointed rings 6 is clamped with the connecting ring groove 4, so that the inner connecting pipe 1 and the outer connecting pipe 2 are fixed on the outside of the connection between the two lifting pipes, thereby avoiding a gap at the connection between the two lifting pipes. A plurality of front connecting blocks 7 are welded to the circumferential outer wall of the inner connecting pipe 1, and a plurality of rear connecting blocks 8 are welded to the circumferential outer wall of the outer connecting pipe 2. A threaded rod 9 is inserted between the front connecting block 7 and the rear connecting block 8. Both ends of the threaded rod 9 are threadedly sleeved with a plurality of fixing nuts 10. The threaded rod 9 is inserted between the front connecting block 7 and the rear connecting block 8, and then the fixing nuts 10 are tightened to fix the inner connecting pipe 1 and the outer connecting pipe 2.

[0022] The circumferential outer wall of the outer flexible sealing tube 3 is sleeved with a connecting hoop 11, and the outer flexible sealing tube 3 is fixed by the connecting hoop 11. A limiting ring 12 is integrally formed at one end of the outer flexible sealing tube 3, and the limiting ring 12 is used to limit the outer flexible sealing tube 3. A plurality of supporting ribs 13 are welded between the inner connecting tube 1 and the front connecting block 7 and between the outer connecting tube 2 and the rear connecting block 8, so as to improve the firmness of the connection between the front connecting block 7 and the inner connecting tube 1 and between the rear connecting block 8 and the outer connecting tube 2. One end of the inner connecting tube 1 and one end of the outer connecting tube 2 are clamped with a sealing gasket 14, and the inner connecting tube 1 and the outer connecting tube 2 are sealed with the lifting tube by the sealing gasket 14.

[0023] The working principle of this embodiment: when in use, first, the inner connecting tube 1 and the outer connecting tube 2 are respectively put on the two connection points that need to be connected to the lifting tube, and then, the inner connecting tube 1 and the outer connecting tube 2 are slidably plugged, and at the same time, the plug-in length of the inner flexible sealing tube 5 and the outer flexible sealing tube 3 is adjusted according to the gap between the two lifting tubes, and the pointed ring 6 is clamped with the connecting ring groove 4, and then the connecting hoop 11 is fixed to the circumferential outer surface of the inner flexible sealing tube 5, and then the threaded rod 9 is inserted between the front connecting block 7 and the rear connecting block 8, and then the fixing nut 10 is tightened to fix the inner connecting tube 1 and the outer connecting tube 2, and then, the inner connecting tube 1 and the outer connecting tube 2 are sealed with the lifting tube through the sealing gasket 14.

[0024] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A lifting pipe connection mechanism, comprising an inner connecting pipe (1) and an outer connecting pipe (2), characterized in that: The inner connecting tube (1) is slidably plugged into the outer connecting tube (2); the outer circumferential inner wall of the outer connecting tube (2) is clamped with an outer flexible sealing tube (3); the circumferential inner wall of the outer flexible sealing tube (3) is provided with a plurality of connecting ring grooves (4); the circumferential outer wall of the inner connecting tube (1) is sleeved with an inner flexible sealing tube (5); the circumferential outer wall of the inner flexible sealing tube (5) is fixedly connected with a plurality of pointed rings (6); the pointed rings (6) are clamped with the connecting ring grooves (4); the circumferential outer wall of the inner connecting tube (1) is fixedly connected with a plurality of front connecting blocks (7); the circumferential outer wall of the outer connecting tube (2) is fixedly connected with a plurality of rear connecting blocks (8); a threaded rod (9) is inserted between the front connecting block (7) and the rear connecting block (8); and a plurality of fixing nuts (10) are threadedly sleeved on both ends of the threaded rod (9).

2. A lifting pipe connection mechanism according to claim 1, characterized in that: The circumferential outer wall of the outer flexible sealing cylinder (3) is sleeved with a connecting hoop (11).

3. A lifting pipe connection mechanism according to claim 1, characterized in that: One end of the outer flexible sealing cylinder (3) is fixedly connected to a limiting ring (12).

4. A lifting pipe connection mechanism according to claim 1, characterized in that: A plurality of supporting ribs (13) are fixedly connected between the inner connecting pipe (1) and the front connecting block (7) and between the outer connecting pipe (2) and the rear connecting block (8).

5. A lifting pipe connection mechanism according to claim 1, characterized in that: One end of the inner connecting tube (1) and one end of the outer connecting tube (2) are both clamped with a sealing gasket (14).

Images