CN207935619U - Air heave type Combined joint based on ship - Google Patents

Abstract

The utility model discloses an inflatable pipeline leak stopper based on a ship, through a plug mainly composed of an inflatable tube 15, an inflatable ball valve 16, n airbags 4‑2, and n+1 circular splints 4‑1 4. When blocking the pipeline 14, the plug 4 is squeezed by pushing the hollow sleeve 6 and the plug 4 is fixed by the rotating part. After the air bag 4-2 is inflated, it is filled immediately and squeezed by the circular splint 4-1. The gap between the seamless fit and each circular splint 4-1 and the gap between the circular splint 4-1 and the side wall of the pipe 14 under the action has good sealing effect, simple structure, convenient operation and strong practicability The characteristics; through the pipeline connection mechanism mainly composed of the positioning panel 2 and more than two connecting rods 9 evenly distributed on the side of the positioning panel 2, the secondary sealing and fixing of the leaking pipeline of the ship can be realized, and the plug 4 is covered by the pipeline 14 The probability of the pressure of the liquid inside being flushed away is greatly reduced, and the reliability and safety of the plugging are greatly improved, which is beneficial to popularization.

Description

Ship-Based Inflatable Pipeline Leak Stopper

technical field

The utility model relates to a pipeline sealing device, in particular to an inflatable pipeline leakage stopper based on a ship.

Background technique

my country is a big shipping country, and the shipping industry is developing rapidly. First of all, the life cycle of a ship is relatively long, generally 25 to 30 years. As an independent body, a ship can navigate freely on rivers and oceans without a relatively complete set of supplies in the ship. Large-scale shipping ships are generally equipped with fresh water supply systems, voyage fuel systems and gas supply systems, and these systems are installed and distributed on the entire hull through pipelines. During the use of these pipeline systems, due to the failure of the ship, impact, aging of the pipeline itself or corrosion of the medium to be transported, failures such as leakage of fuel and water delivered on the ship often occur due to breakage and damage of the ship's pipeline. . Therefore, for pipeline leakage or fracture faults, the broken or leaking pipeline is generally sealed and plugged by a block and then the damaged pipeline is replaced in real time.

At present, the plugging method adopted by the shipbuilding industry mainly uses cork and broken rags to block the damaged nozzle. The traditional plugging method is complicated to operate, takes a long time to plug, requires a lot of manpower, and is affected by the liquid pressure flowing in the pipeline. The plugging tools (such as cork, broken rags, etc.) are easily washed away by the liquid pressure in the pipeline. The blocking effect is poor. In the prior art, there are various blocking devices for pipelines. For example, the Chinese utility model patent with the authorized announcement number 204692896U discloses an emergency plugging and sealing device for ship pipeline leakage, including a plugging body, fastening studs and an air guide valve, wherein the plugging body includes a spherical crown end and a cylindrical The main body has a positioning screw hole inside the main body, the fastening stud is connected with the plugging body through the positioning screw hole, and at least one air guide hole is arranged around the positioning screw hole on the main body, and the air guide hole is connected with the air guide valve at the end surface of the main body. A sealing airbag and a positioning block are arranged on the side surface of the main body. The sealing airbag is embedded between the two positioning block layers. The positioning block is vertically and slidably connected to the main body of the plugging body, and its end is embedded in the positioning screw hole on the plugging body. Against the fastening stud, the sealing air bag is embedded on the main body of the leak plugging body and communicates with the air guide hole. In the pipeline blocking device of this structure, the spherical crown end 11 is inserted into the pipeline, and then the damaged opening is tightly blocked by the air bag 15 and fixed by the positioning block 16 . Its bearing capacity and plugging stability have been greatly improved compared with traditional leak plugging devices, but the plugging end cannot seamlessly seal the inner diameter of the pipeline, and the entire leak plugging body is fixed on the pipe by the positioning block 16. On the road, when the liquid pressure in the pipeline is high, the leakage plugging device is still flushed open, and the plugging effect still needs to be improved.

Utility model content

In view of the above-mentioned deficiencies, the technical problem to be solved by the utility model is to provide a ship-based inflatable pipeline leak stopper with simple structure, quick plugging operation, significantly improved plugging effect and plugging reliability.

In order to achieve the above object, the utility model is realized through the following technical solutions:

The ship-based inflatable pipeline leak stopper includes a threaded shaft provided with threads in the radial direction, a plug installed on the threaded shaft in sequence, a hollow sleeve and a pipeline connection mechanism, and one end of the pipeline connection mechanism can be freely clamped Connected to the pipeline, the other end of which is threaded on the threaded shaft, the hollow sleeve penetrates into the threaded shaft and one end of the hollow sleeve is fixed on the plug, and the other end is provided with a screw for fixing the plug , the tightening member is threaded on the threaded shaft;

The plug includes an inflatable tube, n airbags, and n+1 circular splints, and the circular splints are coaxially mounted on the threaded shaft in turn, and one of the circular splints is installed between every two adjacent circular splints. In the airbag, one end of the inflation tube is equipped with an inflatable ball valve, and the other end of the inflation tube passes through the housing of each circular splint and communicates with each airbag, wherein n is an integer ≥ 1.

In the above solution, the pipeline connection mechanism for connecting the entire pipeline leak stopper with the pipeline to be blocked includes a positioning panel and more than two connecting rods evenly distributed on the sides of the positioning panel, and the positioning panel passes through The fastener can be slidably connected on the threaded shaft and the cross-sectional area of the positioning panel is greater than that of the plug. One end of the connecting rod is hinged on the side wall of the positioning panel through a hinge, and the other end is provided with a hole for connecting the pipeline. hook.

In the above solution, the fastener for positioning the positioning panel on the threaded shaft includes a second connecting sleeve, the second connecting sleeve penetrates into the threaded shaft and is installed vertically on the second connecting sleeve. For the positioning panel, a tightening nut is respectively fixed at both ends of the second connecting sleeve, and the tightening nut is threadedly connected to the threaded shaft.

In the above scheme, in order to further enhance the reliability of the connection between the positioning panel and the pipeline, at least three support plates can be connected between the positioning panel and the second connecting sleeve, one end of each support plate is fixed on the positioning panel, and the other end fixed on the second connecting sleeve.

In the above scheme, the tightening member may include a first connecting sleeve and two rotating handles, the first connecting sleeve penetrates into the threaded shaft and a tightening nut is respectively installed at both ends of the first connecting sleeve, the The tightening nut is threadedly connected with the threaded shaft, and two rotating handles are arranged symmetrically on both sides of the threaded shaft and fixed on the side wall of the first connecting sleeve.

The beneficial effects of the utility model are:

1) The utility model uses a plug mainly composed of an inflatable tube, an inflatable ball valve, n airbags, and n+1 circular splints. When blocking the pipeline, the plug is squeezed by pushing the hollow sleeve and rotated The airbag is filled immediately after being inflated and seamlessly fits the gap between each circular splint and the gap between the circular splint and the side wall of the pipe under the extrusion of the circular splint to seal The effect is good, and it has the characteristics of simple structure, convenient operation and strong practicability;

2) Through the pipeline connection mechanism mainly composed of a positioning panel slidably connected to the threaded shaft and more than two connecting rods evenly distributed on the side of the positioning panel, when in use, after the plug is fixed in the pipeline, the The hook on the connecting rod is fixed on the flange on the pipeline, and finally the positioning panel is fixed on the threaded shaft through the fastener, so that the second sealing and fixing can be realized by the tightening of the connecting rod by the flange. The probability that the head is flushed by the liquid pressure in the pipeline is greatly reduced, and the reliability and safety of the plugging are greatly improved, which is beneficial to popularization.

Description of drawings

Fig. 1 is a structural schematic diagram of an inflatable pipeline leak stopper based on a ship.

Fig. 2 is a schematic structural diagram of the A-A side view of the circular panel in Fig. 1 .

Fig. 3 is a structural schematic diagram of the pipeline connection mechanism.

Figure 4 is a schematic structural view of the plug.

The labels in the figure are: 1, threaded shaft, 2, positioning panel, 3, hinge, 4, plug, 4-1, circular splint, 4-2, air bag, 5, rotating handle, 6, hollow sleeve, 7 , the first connecting sleeve, 8, the second connecting sleeve, 9, connecting rod, 10, fixing nut, 11, tightening nut, 12, support plate, 13, flange plate, 14, pipe, 15, inflatable tube, 16. Inflatable ball valve.

Detailed ways

As shown in FIG. 1 , the ship-based inflatable pipeline leak stopper includes a threaded shaft 1 provided with threads in the radial direction, a plug 4 , a hollow sleeve 6 and a pipeline connection mechanism sequentially installed on the threaded shaft 1 . One end of the pipeline connection mechanism can be freely clamped on the pipeline 14 , and the other end is screwed on the threaded shaft 1 . The hollow sleeve 6 penetrates into the threaded shaft 1 and one end of the hollow sleeve 6 is fixed on the plug 4 , and the other end is provided with a screw for fixing the plug 4 . The tightening member is screwed on the threaded shaft 1 . Specifically, the tightening member includes a first connecting sleeve 7 and two rotating handles 5, the first connecting sleeve 7 penetrates into the threaded shaft 1 and a tightening nut is respectively installed at both ends of the first connecting sleeve 7 11. The tightening nut 11 is threadedly connected with the threaded shaft 1 . The two rotary handles 5 are respectively arranged symmetrically on both sides of the threaded shaft 1 and fixed on the side wall of the first connecting sleeve 7 . The two rotary handles 5 provided are labor-saving, easy to operate, and improve the tightening efficiency of the two tightening nuts 11. When in use, the rotary handles 5 are not installed, only through the first connecting sleeve 7 and the two. A tightening nut 11 can also be completed.

As shown in FIG. 4 , the plug 4 includes an inflatable tube 15 , n airbags 4 - 2 , and n+1 circular splints 4 - 1 , wherein n is an integer ≥ 1. In this embodiment, n=2 as shown. The circular splints 4-1 are sequentially coaxially installed on the threaded shaft 1, and one air bag 4-2 is installed between every two adjacent circular splints 4-1. One end of the inflation tube 15 is equipped with an inflatable ball valve 16, and the other end thereof passes through the housings of the circular splints 4-1 respectively and communicates with the air bags 4-2. The center of each circular splint 4-1 and the air bag 4-2 is provided with a through hole for the threaded shaft 1 to pass through, and is mounted on the thread by a fixing nut 10 . The plug 4 on one side of the fixing nut 10 is provided as the plugging end face, and the fixing nut 10 shown is opposite to the hollow sleeve 6 . The size of each circular splint 4-1 is consistent, and is 0.1-0.5mm smaller than the inner diameter of the pipeline 14 to be blocked. In order to strengthen the airtightness of the plug 4, a circular sealing gasket can be installed between the adjacent air bag 4-2 and the circular splint 4-1.

As shown in Fig. 2 and Fig. 3, the pipeline connection mechanism includes a positioning panel 2 and more than two connecting rods 9 evenly distributed on the sides of the positioning panel 2, and in this embodiment, the number of the connecting rods 9 is four. Wherein the positioning panel 2 is slidably connected to the threaded shaft 1 through fasteners, and the cross-sectional area of the positioning panel 2 is larger than that of the plug 4 . Further, the positioning panel 2 may specifically be a panel of other shapes such as a circular steel plate, a square steel plate, or the like. One end of the connecting rod 9 is hinged to the side wall of the positioning panel 2 through the hinge 3 , and the other end is provided with a hook for connecting the pipe 14 . At least three support plates 12 are connected between the positioning panel 2 and the second connection sleeve 8. In this embodiment, the number of support plates 12 is four, and they are installed in a cross-shaped structure with the threaded shaft 1 as the center. . One end of each support plate 12 is fixed on the positioning panel 2 , and the other end is fixed on the second connecting sleeve 8 .

The fastener comprises a second connecting sleeve 8 . The second connection sleeve 8 penetrates into the threaded shaft 1 and the positioning panel 2 is vertically installed on the second connection sleeve 8, and a tightening nut 11 is respectively fixed at both ends of the second connection sleeve 8, and the tightening The nut 11 is screwed on the threaded shaft 1 .

As shown in Figure 1, the utility model when working:

1) Extend the plug 4 into the pipeline 14;

2) Then push the hollow sleeve 6 to move the plug 4 to a proper position, turn the rotary handle 5 to drive the tightening nut 11 connected to the rotary handle 5, and the tightening nut 11 is screwed on the threaded shaft 1 to push the hollow sleeve 6 Squeeze the circular splint 4-1 on the plug 4 forward, and at the same time inflate the air bag 4-2 through the inflatable ball valve 16, and the air bag 4-2 between the circular splints 4-1 is received by the circular splint 4 -1 stretches and expands to the space with gaps after being squeezed, filling the gap between the circular splints 4-1 and the gap between the pipes 14, forming a series of sealing walls with good airtightness against the inside of the pipe 14 liquid, and finally fix the plug 4 by tightening the nut 11;

3) Hook the hook on the connecting rod 9 on the fixed flange 13 on the pipe 14, and tighten the screw on the second connecting sleeve 8 to fix the positioning panel 2 and complete the plugging operation.

The utility model realizes the primary sealing of the pipeline 14 through the plug 4 with the structure of the air bag 4-2, the hollow sleeve 6 and the rotating part, and realizes the secondary sealing of the pipeline 14 through the positioning panel 2, the connecting rod 9 and the fastener ; Simultaneously, the liquid pressure in the pipeline 14 acts on the plug 4 to form the pressure in the pipe, and the plug 4 has a tendency to be pushed out of the pipeline 14, and the hook on the connecting rod 9 is tightly hooked with the flange 13 to make it It forms a reverse force with the pressure in the pipe, forming a pair of balanced forces, which greatly improves the reliability and safety of sealing.

The above is only to illustrate the implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the utility model , should be included within the protection scope of the present utility model.

Claims (4)

1. The ship-based inflatable pipeline leakage stopper is characterized in that: it includes a threaded shaft (1) provided with threads in the radial direction, a plug (4) and a hollow casing sequentially installed on the threaded shaft (1) (6) and the pipeline connection mechanism, the hollow sleeve (6) penetrates into the threaded shaft (1) and one end of the hollow sleeve (6) is fixed on the plug (4), and the other end is provided with a plug for fixing the plug. A tightening part of the head (4), which is threaded on the threaded shaft (1); The plug (4) includes an inflation tube (15), n air bags (4-2), n+1 circular splints (4-1), and the circular splints (4-1) are installed coaxially in sequence On the threaded shaft (1) and between every two adjacent circular splints (4-1), an air bag (4-2) is installed, and an inflatable ball valve is installed at one end of the inflation tube (15) (16), the other end of which passes through the shells of each circular splint (4-1) and communicates with each air bag (4-2), wherein n is an integer ≥ 1; The pipeline connection mechanism includes a positioning panel (2) and more than two connecting rods (9) evenly distributed on the side of the positioning panel (2), and the positioning panel (2) is slidably connected to the threaded shaft ( 1) and the cross-sectional area of the positioning panel (2) is greater than the cross-sectional area of the plug (4), and one end of the connecting rod (9) is hinged on the side wall of the positioning panel (2) through a hinge (3), its The other end is provided with a hook for connecting the pipe (14). 2. The ship-based inflatable pipeline leak stopper according to claim 1, characterized in that: the fastener comprises a second connecting sleeve (8), and the second connecting sleeve (8) penetrates into the screw thread The positioning panel (2) is vertically installed in the shaft (1) and on the second connection sleeve (8), and a tightening nut (11) is respectively fixed at both ends of the second connection sleeve (8). The tightening nut (11) is threadedly connected on the threaded shaft (1). 3. The ship-based inflatable pipeline leak stopper according to claim 1, characterized in that: at least three support plates (12) are connected between the positioning panel (2) and the second connecting sleeve (8) ), one end of each support plate (12) is fixed on the positioning panel (2), and the other end is fixed on the second connecting sleeve (8). 4. The ship-based inflatable pipeline leak stopper according to claim 1, characterized in that: the tightening member comprises a first connecting sleeve (7) and two rotating handles (5), the first connecting The sleeve (7) penetrates into the threaded shaft (1) and a tightening nut (11) is respectively installed at both ends of the first connecting sleeve (7), and the tightening nut (11) is threadedly connected with the threaded shaft (1) The two rotating handles (5) are symmetrically arranged on both sides of the threaded shaft (1) and fixed on the side wall of the first connecting sleeve (7).