Water plugging device for large steel wire framework net pipeline

Abstract

The utility model provides a large steel wire framework net pipeline water plugging device which solves the technical problems that in the existing pipeline maintenance process, when an air bag is used for plugging a pipeline, accumulated water in the pipeline needs to be completely emptied, the emptying time is long, and the air bag is prone to being flushed out. Comprising a water plugging wheel, the water plugging wheel comprises a water plugging plate, two circular rings arranged at intervals and a cylinder connecting the two circular rings, the cylinder is provided with a water flow channel, and the water plugging plate is connected to the inner wall of the cylinder and divides the water flow channel into a first sub-channel and a second sub-channel which are not communicated; the air bag comprises an air nozzle, the air bag is annularly arranged on the periphery of the water blocking wheel, under the condition that the air bag is inflated, the air bag abuts against the circular ring and the cylinder, and a plurality of springs are arranged in the air bag; the water guide pipe is located in the second sub-channel and communicated with the first sub-channel, and the water guide pipe is provided with a valve. Water can be blocked, water guiding and pressure reducing can be achieved, the drainage waiting time is greatly shortened, and the overhaul efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water blocking devices, in particular to a large-scale steel wire skeleton mesh pipeline water blocking device. Background Art

[0002] Wire mesh skeleton composite pipe is a composite pipe made of high-strength plasticized steel wire and high-density polyethylene. When connecting the pipes, the internal heating element of the pipe fittings is used to melt the outer plastic layer of the pipe with the inner plastic layer of the pipe fittings, reliably connecting the pipe and the fittings. It has excellent flexibility, corrosion resistance, and no scaling. Enterprises often use large-scale wire mesh skeleton composite pipes of DN250-DN500 for buried water supply system pipes. With the increase of service life, the pipelines may be damaged and leak due to external factors such as foundation settlement, temperature changes, and external load changes. Each time the leak is repaired, the electric fusion welding and replacement of the electric fusion pipe fittings are required. It is important to ensure that the electric fusion welding joints of the pipes are dry and free of moisture or water outflow. Otherwise, it is difficult to weld the electric fusion pipe fittings firmly, and the welding joints of the electric fusion pipe fittings are prone to secondary leakage.

[0003] In the existing technology, air bags are often used to block water during pipeline maintenance. The following defects exist in air bag water blocking: 1. It takes a long time to drain the water in the pipeline before electric fusion welding for repair of the leaking point, and the water cannot be completely drained. The air bag blocks the water in the pipeline, which is only suitable for the situation where there is little water and low pressure in the pipeline; 2. When the flow rate of water in the pipeline is large and there is a certain pressure, simply using air bags to block the water may cause water seepage in the pipe wall, and even the air bag may be washed out of the pipeline by the accumulated water, which affects the electric fusion welding effect during the pipeline repair process, and secondary leakage is prone to occur at the welding point of the electric fusion pipe fittings. Utility Model Content

[0004] The purpose of this utility model is to provide a large-scale steel wire skeleton mesh pipeline water blocking device to solve the technical problems that in the current pipeline maintenance process, air bags are used to block pipelines, the accumulated water in the pipelines needs to be completely emptied, the emptying time is long, and the air bags are easily flushed out.

[0005] The embodiments of the present invention are achieved through the following technical solutions:

[0006] A large-scale steel wire skeleton mesh pipeline water blocking device comprises a plurality of water blocking components spaced apart along the extension direction of the pipeline, the water blocking components comprising:

[0007] A water shutoff wheel, comprising a water shutoff plate, two spaced-apart rings, and a cylinder connecting the two rings, the cylinder being provided with a water flow channel, the water shutoff plate being connected to the inner wall of the cylinder to separate the water flow channel into two non-communicating first and second sub-channels;

[0008] An airbag, including an air nozzle, is provided on the outer periphery of the water blocking wheel. When the airbag is inflated, the airbag abuts against the ring and the cylinder. A plurality of springs are provided inside the airbag;

[0009] The water conduit is located in the second sub-channel and is connected to the first sub-channel. The water conduit is provided with a valve.

[0010] In some embodiments, the spring extends in a radial direction of the cylinder.

[0011] In some embodiments, the plurality of springs are symmetrically arranged along the axial direction of the cylinder.

[0012] In some embodiments, a plurality of the springs are spaced apart along the axial direction of the cylinder.

[0013] In some embodiments, the water shutoff wheel further includes a water-stopping coil wound around the outer circumference of the cylinder, and the water-stopping coil is a water absorption coil.

[0014] In some embodiments, the airbag has multiple layers.

[0015] In some embodiments, the system further includes a handle connected to the water shutoff wheel.

[0016] The technical solution of the embodiment of the utility model has at least the following advantages and beneficial effects:

[0017] (1) By setting a water blocking wheel and an air bag arranged on the outside of the water blocking wheel, the inside of the pipeline to be repaired can be blocked by the water blocking wheel and the air bag. The water blocking wheel is provided with a water guide pipe, and the operation can be carried out when the internal water flow of the pipeline to be repaired has not been completely drained, which greatly reduces the operation time. Secondly, the rings on both sides cooperate with the cylinder to form a groove on the outer wall of the water blocking wheel to fit the air bag to prevent water overflow.

[0018] (2) Set a water stop line to seal the space between the airbag and the water blocking wheel to further ensure the sealing effect.

[0019] (3) A spring is installed inside the airbag to increase the sealing effect of the airbag.

[0020] (4) The utility model has a reasonable design, a simple structure and good practicality. It completely solves the problem of water accumulation and drainage difficulty in capacitor welding pipes of pipe fittings during the maintenance of large-scale steel wire mesh skeleton composite pipes. It not only plays a water blocking function, but also demonstrates the advantages of water diversion and pressure reduction, greatly reducing the waiting time for drainage and improving the maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 A schematic structural diagram of a water blocking component of a large steel wire skeleton mesh pipeline water blocking device provided by an embodiment of the present utility model;

[0023] Figure 2 A schematic structural diagram of the water blocking component of the large steel wire skeleton mesh pipeline water blocking device provided by an embodiment of the present utility model after removing the airbag;

[0024] Figure 3 A cross-sectional view of the water blocking component of the large steel wire skeleton mesh pipeline water blocking device provided in an embodiment of the present utility model along the radial direction of the water blocking wheel.

[0025] icon:

[0026] 100. Blocking water wheel;

[0027] 110. Water blocking plate;

[0028] 200, airbag;

[0029] 210, spring;

[0030] 300, aqueduct;

[0031] 310, valve;

[0032] 400, handle;

[0033] 500. Waterstop. DETAILED DESCRIPTION

[0034] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0035] Example

[0036] An embodiment of the present application provides a large-scale steel wire skeleton mesh pipeline water blocking device, which reduces pipeline maintenance time, increases blocking effect, and prevents the water blocking device from being washed out by water flow.

[0037] See also Figure 1 as well as Figure 2 The large-scale steel wire mesh pipeline water blocking device provided in the embodiment of the present application includes a plurality of water blocking components spaced apart along the extension direction of the pipeline, and the water blocking components include:

[0038] The water shutoff wheel 100 includes a water shutoff plate 110, two spaced-apart rings, and a cylinder connecting the two rings. The cylinder is provided with a water flow channel. The water shutoff plate 110 is connected to the inner wall of the cylinder to divide the water flow channel into two non-connected first and second sub-channels. In some embodiments, the inner wall of the ring is connected to the outer wall of the cylinder. The rings are respectively provided at both ends of the cylinder. The water shutoff plate 110 is provided in the middle of the cylinder. The water shutoff plate 110 is connected to the inner wall of the cylinder to divide the water flow channel in the cylinder.

[0039] See also Figure 3 The airbag 200 includes an air nozzle. The airbag 200 is arranged around the outer periphery of the water blocking wheel 100. When the airbag 200 is inflated, the airbag 200 abuts against the ring and the cylinder. A plurality of springs 210 are provided inside the airbag 200 to ensure that the airbag 200 is in close contact with the water blocking wheel 100 and the pipeline to be repaired.

[0040] The water pipe 300 is located in the second sub-channel and is connected to the first sub-channel. The water pipe 300 is provided with a valve 310. In some embodiments, the water pipe 300 is connected to the middle of the water blocking plate 110. In some embodiments, the water pipe 300 is provided with a control water valve.

[0041] In some embodiments, the spring 210 extends radially along the cylinder, so that when the spring 210 extends, it can assist the airbag 200 to contact the inner wall of the pipe to be repaired and the outer wall of the water plugging wheel 100, thereby increasing the sealing effect.

[0042] In some embodiments, multiple springs 210 are symmetrically arranged along the axis of the cylinder to ensure uniform force.

[0043] In some embodiments, multiple springs 210 are spaced apart along the axial direction of the cylinder to enhance the sealing effect and ensure uniform force.

[0044] In some embodiments, the water shutoff wheel 100 further includes a water stop line 500 circles wound around the outer circumference of the cylinder. The water stop line 500 circles are water absorbing coils to seal the gap between the water shutoff wheel 100 and the airbag 200 to enhance the sealing effect.

[0045] In some embodiments, the airbag 200 is provided with multiple layers.

[0046] In some embodiments, a handle 400 connected to the water shutoff wheel 100 is further included to facilitate installation of the device.

[0047] In some embodiments, the outer wall of the airbag 200 is provided with a plurality of dot-shaped protrusions to increase friction and prevent the airbag 200 from being displaced.

[0048] The following is a detailed description of the use of the large steel wire skeleton mesh pipeline water blocking device of the present application:

[0049] During use, before electrofusion welding of large-scale steel mesh skeleton composite pipe fittings, the leaking pipe is annularly cut off, and the accumulated water in the pipe begins to drain naturally. When the amount of water to be drained decreases, the airbag 200 is installed on the outer ring of the water blocking wheel 100. At this time, the airbag 200 is not inflated, the control valve on the water guide pipe 300 is closed, and the water blocking device is placed in the pipe with accumulated water. After confirming that the water guide pipe 300 and the accumulated water pipe are on the same center line, the airbag 200 is inflated until the airbag 200 is tightly fitted with the pipe wall, the ring, and the cylinder of the pipe to be repaired, and the accumulated water in the pipe to be repaired is completely blocked without leakage or flooding. At this point, the accumulated water in the pipe to be repaired is completely blocked, and the conditions for electrofusion welding of the steel mesh skeleton composite pipe fittings are met. To prevent the accumulated water in the pipe to be repaired from increasing, lateral pressure is applied to the water blocking device, causing water to seep around the airbag 200, or even the entire water blocking device to be flushed out by the accumulated water, affecting the capacitor welding work. After the inflation of the airbag 200 is completed, the control water valve on the water pipe 300 needs to be opened. Since the valve 310 is located in the center of the pipeline to be inspected, once the water level in the pipeline to be inspected reaches the position of the water pipe 300, the accumulated water can be continuously discharged through the water pipe 300, completely solving the problem of water seepage around the airbag 200 and even the entire water blocking device being washed out by the accumulated water, providing the last line of defense for the capacitor welding work.

[0050] The large-scale steel wire skeleton mesh pipeline water blocking device of the present application has at least the following advantages:

[0051] (1) By setting a water blocking wheel and an air bag arranged on the outside of the water blocking wheel, the inside of the pipeline to be repaired can be blocked by the water blocking wheel and the air bag. The water blocking wheel is provided with a water guide pipe, and the operation can be carried out when the internal water flow of the pipeline to be repaired has not been completely drained, which greatly reduces the operation time. Secondly, the rings on both sides cooperate with the cylinder to form a groove on the outer wall of the water blocking wheel to fit the air bag to prevent water overflow.

[0052] (2) Set a water stop line to seal the space between the airbag and the water blocking wheel to further ensure the sealing effect.

[0053] (3) A spring is installed inside the airbag to increase the sealing effect of the airbag.

[0054] (4) The utility model has reasonable design, simple structure and good practicality, which completely solves the problem of difficult drainage of water accumulation in pipe capacitor welding pipelines during the maintenance of large steel wire mesh skeleton composite pipes, and plays a role in blocking

[0055] The water function also demonstrates the advantages of water diversion and pressure reduction, greatly reducing the drainage waiting time, improving the 5 maintenance efficiency, and accumulating valuable experience for the welding maintenance of wire mesh skeleton composite pipe capacitors.

[0056] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be modified and varied in various ways.

[0057] Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model shall be included in the scope of protection of this utility model.

Claims

1. A large steel wire mesh pipe water blocking device, characterized in that: It comprises a plurality of water blocking components spaced apart along the extension direction of the pipeline, and the water blocking components include: A water shutoff wheel, comprising a water shutoff plate, two spaced-apart rings, and a cylinder connecting the two rings, the cylinder being provided with a water flow channel, the water shutoff plate being connected to the inner wall of the cylinder to separate the water flow channel into two non-communicating first and second sub-channels; An airbag, including an air nozzle, is provided on the outer periphery of the water blocking wheel. When the airbag is inflated, the airbag abuts against the ring and the cylinder. A plurality of springs are provided inside the airbag; The water conduit is located in the second sub-channel and is connected to the first sub-channel. The water conduit is provided with a valve.

2. The large-scale steel wire skeleton mesh pipeline water blocking device according to claim 1 is characterized in that: The spring extends in a radial direction of the cylinder.

3. The large-scale steel wire skeleton mesh pipeline water blocking device according to claim 1 is characterized in that: The plurality of springs are symmetrically arranged along the axial direction of the cylinder.

4. The large-scale steel wire skeleton mesh pipeline water blocking device according to claim 1 is characterized in that: A plurality of springs are spaced apart along the axial direction of the cylinder.

5. The large-scale steel wire skeleton mesh pipeline water blocking device according to any one of claims 1 to 4, characterized in that: The water shutoff wheel further comprises a water-stopping coil wound around the outer circumferential surface of the cylinder, and the water-stopping coil is a water-absorbing coil.

6. The large-scale steel wire skeleton mesh pipeline water blocking device according to any one of claims 1 to 4, characterized in that: The airbag is provided with multiple layers.

7. The large-scale steel wire skeleton mesh pipeline water blocking device according to any one of claims 1 to 4, characterized in that: It also includes a handle connected to the water blocking wheel.

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