Integrated pipeline sealing device

Abstract

The utility model relates to an integrated pipeline sealing device which comprises a sleeve and an end cover plugged at the upper end of the sleeve, and the center of the end cover is in coaxial threaded connection with a pressing screw. One end of the pressing screw extends into the sleeve and is connected with a pressing plate, and the pressing plate forms a pipeline plugging surface; a plurality of threaded holes are formed in the position, close to the lower end of the casing pipe, of the side wall of the casing pipe along the casing pipe by a circle, a fastening screw is installed in each threaded hole, and one end of each fastening screw extends into the casing pipe to form an extrusion end in the casing pipe; the distance between the pressing plate and the end cover in the sleeve is always smaller than the distance between the extrusion end and the end cover. The integral pipeline sealing device is integrally of an integral structure and can be directly mounted during mounting, the fastening screw abuts against the end of a pipeline to be plugged during mounting, the pressing plate is plugged at the end of the pipeline through the pressing screw, welding is not needed, plugging is relatively firm, and damage to the pipeline is avoided.

Description

Technical Field

[0001] The utility model relates to the field of ship pipeline construction, in particular to an integrated pipeline tightness device. Background Art

[0002] In shipbuilding, it is usually necessary to conduct an inflation test on the structural compartments of the hull to verify that there are no air leaks in the hull welds, the welds of the through-the-hull pipe accessories, etc.

[0003] The general process of the inflation test is to use blind plates, flange blind plates, wooden plugs, etc. to seal the cabin pipes to make the cabin closed, and then fill the cabin with gas to a certain pressure. The quality of the welds can be checked by spraying foam water or checking the air pressure changes.

[0004] When sealing through-tank pipes, it is more convenient to seal through-tank pipes with flange joints, which can be done through flange blind plates. For through-tank pipes without flange joints, welding blind plates or inserting wooden plugs are used for sealing. Welding will cause damage to the through-tank pipes, and wooden plugs have the problem of loose sealing. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides an integrated pipeline tightness device. When sealing a through-tank pipe without a flange joint, no welding is required, the sealing is relatively firm, and no damage is caused to the through-tank pipe.

[0006] The technical objectives of this utility model are achieved through the following technical solutions:

[0007] An integrated pipeline tightness device includes a sleeve, an end cap sealed on the upper end of the sleeve, a compression screw coaxially threadedly connected to the center of the end cap; one end of the compression screw extends into the sleeve and is connected to a pressure plate, which forms a pipeline sealing surface;

[0008] A plurality of threaded holes are provided along a circle of the sleeve near the lower end of the side wall of the sleeve, and a fastening screw is installed in each threaded hole. One end of the fastening screw extends into the sleeve to form an extrusion end in the sleeve; the distance between the pressure plate and the end cover in the sleeve is always less than the distance between the extrusion end and the end cover.

[0009] Furthermore, the pipeline sealing surface is also provided with an elastic sealing gasket.

[0010] Furthermore, three or four threaded holes are provided along a circle of the sleeve.

[0011] Furthermore, the extrusion end head includes an extrusion block rotatably connected to the end of the fastening screw.

[0012] Furthermore, the extrusion block is provided with an arc-shaped extrusion surface on the outer wall of the blocked pipeline.

[0013] Furthermore, the pressing plate is rotationally connected to the end of the pressing screw.

[0014] Compared with the existing technology, the beneficial effect of the present invention is that the integrated pipeline tightness device of the present invention is an integrated structure as a whole, and can be directly installed. During installation, the end of the pipeline to be sealed is pressed against the tightening screw, and the pressure plate is sealed at the end of the pipeline by tightening the screw. No welding is required, and the sealing is relatively firm, avoiding damage to the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front side schematic diagram of the integrated pipeline tightness device of the present utility model.

[0016] Figure 2 It is a top view schematic diagram of the integrated pipeline tightness device of the present utility model.

[0017] Figure 3 It is a cross-sectional schematic diagram of the integrated pipeline tightness device of the present utility model.

[0018] Figure 4 This is a schematic diagram of the use of the integrated pipeline tightness device of the utility model.

[0019] Figure 5 It is a schematic diagram of the arrangement of the extrusion block in the utility model.

[0020] In the picture:

[0021] 1. Casing; 2. End cover; 3. Compression screw; 4. Pressure plate; 5. Fastening screw; 6. Elastic sealing gasket; 7. Cabin pipe; 8. Bulkhead; 9. Extrusion block. DETAILED DESCRIPTION

[0022] The technical solution of the present invention is further described below in conjunction with specific embodiments:

[0023] An integrated pipeline tightness device, such as Figures 1-4 As shown, it includes a casing 1, an end cap 2 sealed at the upper end of the casing, a compression screw 3 is coaxially threadedly connected to the center of the end cap 2; one end of the compression screw 3 extends into the casing 1 and is connected to a pressure plate 4, which forms a pipeline sealing surface;

[0024] The pressure plate 4 and the end of the compression screw 3 can be fixedly connected or rotatably connected. In one embodiment, the pressure plate 4 and the compression screw 3 are rotatably connected through a bearing. During the process of continuous compression between the pressure plate and the end of the pipeline, the setting of the bearing can facilitate the screwing of the compression screw.

[0025] A plurality of threaded holes are provided on the side wall of the sleeve 1 near the lower end of the sleeve along a circle of the sleeve, which may be three, four, five or even more, preferably three or four. A fastening screw 5 is installed in each threaded hole, and one end of the fastening screw 5 extends into the sleeve 1 to form an extrusion end in the sleeve; the distance between the pressure plate 4 and the end cover 2 in the sleeve 1 is always less than the distance between the extrusion end and the end cover 2.

[0026] Preferably, the pipeline sealing surface is further provided with an elastic sealing pad 6, such as a rubber pad, which is bonded to the pipeline sealing surface of the pressure plate.

[0027] Preferably, the extrusion end includes an extrusion block 9 rotatably connected to the end of the fastening screw, such as Figure 5 As shown, the outer wall of the extrusion block 9 corresponding to the blocked pipeline can also be provided with an arc-shaped extrusion surface. In this embodiment, the blocking of the through-cabin pipe 7 passing through the bulkhead 8 is taken as an example to increase the contact surface between the through-cabin pipe and the friction force.

[0028] This embodiment is only a further explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. An integrated pipeline tightness device, characterized in that: It includes a casing and an end cap sealed on the upper end of the casing, wherein the center of the end cap is coaxially threadedly connected to a compression screw; one end of the compression screw extends into the casing and is connected to a pressure plate, which forms a pipeline sealing surface; A plurality of threaded holes are provided on the side wall of the sleeve near the lower end thereof along a circle of the sleeve, and a fastening screw is installed in each of the threaded holes. One end of the fastening screw extends into the sleeve to form an extrusion end head inside the sleeve; the distance between the pressure plate and the end cover inside the sleeve is always smaller than the distance between the extrusion end head and the end cover.

2. The integrated pipeline tightness device according to claim 1, characterized in that: The pipeline sealing surface is also provided with an elastic sealing gasket.

3. The integrated pipeline tightness device according to claim 1, characterized in that: Three or four threaded holes are arranged along a circle of the sleeve.

4. The integrated pipeline tightness device according to claim 1, characterized in that: The extrusion end head includes an extrusion block rotatably connected to the end of the fastening screw.

5. The integrated pipeline tightness device according to claim 4, characterized in that: The extrusion block is provided with an arc-shaped extrusion surface on the outer wall of the blocked pipeline.

6. The integrated pipeline tightness device according to claim 1, characterized in that: The pressing plate is rotationally connected to the end of the pressing screw.

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