Emergency plugging device for PE pipeline and temporary plugging method thereof

Abstract

The application discloses an emergency plugging device for PE pipeline and a temporary plugging method thereof, wherein a water-expanding extrusion plug rod outside a plugging end head extrudes a PE pipeline to be plugged to plug a port of the PE pipeline to be plugged; on the other hand, elastic pressing strips of a protective flange on the plugging end head are locked on an outer wall of the PE pipeline to be plugged through fasteners; and an end portion of the plug rod is provided with a temperature and pressure sensor to collect water pressure and water temperature in the PE pipeline to be plugged. The application solves the problems of time-consuming and laborious hot melting connection of a three-way port reserved for a PE water supply pipeline.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, specifically to an emergency sealing device for PE pipelines and its temporary sealing method. Background Technology

[0002] During the demolition and renovation of old water plants, the T-junctions pre-installed on PE (polyethylene) water supply pipes are often unintentionally damaged. Due to changes in water plant management personnel, there are situations where no one knows the location of the branch valve corresponding to the leaking pipe, leaving the main valve as the only option. Therefore, the time available to seal the T-junctions pre-installed on the PE water supply pipes is limited. The original fittings cannot be found quickly, and even if they are found, heat fusion connection is time-consuming and labor-intensive, and the connection may be blown open by water pressure.

[0003] The information disclosed in this background section is intended only to enhance the understanding of the overall background of the invention and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0004] To overcome the shortcomings of existing technologies, an emergency sealing device for PE pipelines and its temporary sealing method are provided to solve the problem of time-consuming and labor-intensive hot-melt connection of fittings for the reserved tee openings of PE water supply pipes.

[0005] To achieve the above objectives, an emergency sealing device for PE pipelines is provided, comprising:

[0006] A sealing end, the sealing end having a first end and a second end opposite to each other, the middle of the first end being coaxially connected to a plug rod;

[0007] A water-swellable layer is laid on the circumferential surface of the insertion rod, and the outer diameter of the water-swellable layer is adapted to the inner diameter of the PE pipe to be sealed.

[0008] The protective flange is formed on the outer edge of the first end. The protective flange is arranged in a circle along the circumferential direction of the sealing end. The protective flange is formed with multiple elastic pressure strips, which are arranged along the circumferential direction of the protective flange. The elastic pressure plate is equipped with fasteners for locking the outer wall of the PE pipe to be sealed.

[0009] A sealing pad is laid on the end face of the first end and disposed between the protective flange and the insert rod;

[0010] A pressure sensor is installed at the end of the insertion rod furthest from the sealing end;

[0011] A temperature sensor is installed at the end of the insertion rod furthest from the sealing end;

[0012] The controller has a receiving groove at its second end, and the controller is installed in the receiving groove. The controller is connected to the pressure sensor and the temperature sensor.

[0013] Furthermore, it also includes a protective sleeve having an open end and a closed end, the open end being detachably fitted onto the second end, and the closed end being fitted with a fiber measuring tape.

[0014] Furthermore, the second end has an external thread, the open end has an internal thread, and the second end is threadedly connected to the open end.

[0015] Furthermore, the controller is connected to a display screen, which is installed in the receiving slot.

[0016] Furthermore, the elastic pressure strip has a fixed end and a movable end for pressing against the outer wall of the PE pipe to be sealed. The fixed end is connected to the protective flange, and the movable end is obliquely inward toward the end of the insertion rod away from the sealing end.

[0017] Furthermore, the elastic pressure strip has a through hole, and the fastener passes through the through hole and is anchored in the outer wall of the PE pipe to be sealed.

[0018] Furthermore, a power supply component is embedded in the sealing end, and the power supply component is connected to the controller, the pressure sensor, and the temperature sensor.

[0019] This invention provides a temporary sealing method for an emergency sealing device for PE pipelines, comprising the following steps:

[0020] Align the insertion rod with the port of the PE pipe to be sealed and insert it, so that multiple elastic strips press against the outer wall of the PE pipe to be sealed and the sealing pad presses against the end face of the port of the PE pipe to be sealed;

[0021] Fasteners are installed on multiple of the elastic strips to lock the outer wall of the PE pipe to be sealed.

[0022] After the water-swellable layer comes into contact with the water inside the PE pipe to be sealed, the water-swellable layer expands and squeezes the inner wall of the PE pipe to seal the port of the PE pipe. The pressure sensor collects the water pressure of the PE pipe to be sealed, the temperature sensor collects the water temperature of the PE pipe to be sealed, and the controller obtains the water pressure and the water temperature and outputs them.

[0023] The beneficial effects of the present invention are as follows: the emergency sealing device for PE pipes of the present invention has an outer side of the plug at the sealing end that expands when exposed to water to compress the PE pipe to be sealed, thereby sealing the port of the PE pipe to be sealed. On the other hand, the elastic pressure strip of the protective flange at the sealing end is locked to the outer wall of the PE pipe to be sealed by fasteners. The end of the plug is equipped with a temperature and pressure sensor to collect the water pressure and water temperature inside the PE pipe to be sealed. Attached Figure Description

[0024] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0025] Figure 1 This is a schematic diagram of the structure of the PE pipeline emergency sealing device according to an embodiment of the present invention.

[0026] Figure 2 This is an exploded structural diagram of the sealing end of an embodiment of the present invention.

[0027] Figure 3 This is a schematic diagram of the insertion rod according to an embodiment of the present invention.

[0028] Figure 4 This is a schematic diagram of the structure of the protective sleeve according to an embodiment of the present invention.

[0029] Figure 5 This is a schematic diagram illustrating the usage status of the PE pipeline emergency sealing device according to an embodiment of the present invention. Detailed Implementation

[0030] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0031] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0032] Reference Figure 1 As shown in the figure, the present invention provides an emergency sealing device for PE pipes, comprising: a sealing end 1, a water-swellable layer 2, a protective flange 3, a sealing pad 4, a pressure sensor 5, a temperature sensor 6, and a controller 9.

[0033] Specifically, the sealing end 1 has a first end and a second end. A plug rod 11 is coaxially connected to the middle of the first end. The sealing end 1 is cylindrical. The outer diameter of the sealing end is larger than the outer diameter of the PE pipe to be sealed. The outer diameter of the plug rod is smaller than the inner diameter of the PE pipe to be sealed.

[0034] The water-swellable layer 2 is laid on the circumferential surface of the insertion rod 11. The outer diameter of the water-swellable layer 2 is adapted to the inner diameter of the PE pipe 8 to be sealed.

[0035] In some embodiments, the water-swellable layer is water-swellable rubber.

[0036] In other embodiments, the outer diameter of the insertion rod covered with the water-swellable layer is slightly larger than the inner diameter of the PE pipe 8 to be sealed. When the insertion rod is inserted into the PE pipe 8 to be sealed, the elasticity of the water-swellable layer is used to compress the inner wall of the PE pipe to be sealed, so that the insertion rod covered with the water-swellable layer can be tightly sealed in the PE pipe to be sealed.

[0037] The cross-section of the insertion rod is circular or elliptical.

[0038] See Figure 1 and Figure 2 A protective flange 3 is formed on the outer edge of the first end of the sealing end 1. The protective flange 3 is arranged in a circle along the circumference of the sealing end 1. The protective flange extends along the circumferential surface of the sealing end. Multiple elastic pressure strips 31 are formed on the protective flange 3. The multiple elastic pressure strips 31 are arranged along the circumferential direction of the protective flange 3. Fasteners for locking the outer wall of the PE pipe 8 to be sealed are installed on the elastic pressure plate.

[0039] In some embodiments, the elastic strip is an elastic plastic strip.

[0040] The sealing pad 4 is laid on the end face of the first end and is located between the protective flange 3 and the plug 11.

[0041] Pressure sensor 5 is installed at the end of the insertion rod 11 that is furthest from the sealing end 1.

[0042] Temperature sensor 6 is installed at the end of plug 11 that is furthest from the sealing end 1.

[0043] A receiving groove 10 is provided at the second end of the sealing end. The controller 9 is installed in the receiving groove 10. The controller 9 is connected to the pressure sensor 5 and the temperature sensor 6.

[0044] Pressure sensor 5 collects the water pressure of the PE pipe 8 to be sealed. Temperature sensor 6 collects the water temperature of the PE pipe 8 to be sealed.

[0045] See Figure 2 The controller 9 is connected to a display screen. The display screen is installed in the receiving slot 10. The display screen is used to output and display the water pressure and water temperature acquired by the controller.

[0046] The PE pipe emergency sealing device of the present invention further includes a protective sleeve 7. The protective sleeve 7 has an open end and a closed end. The open end is detachably fitted onto the second end. A fiber measuring tape 71 is installed on the closed end.

[0047] During construction, a fiber optic measuring tape is used to measure the diameter and circumference of the damaged PE pipe. In this embodiment, the fiber optic measuring tape is housed within a protective sleeve.

[0048] As a preferred implementation method, see [reference]. Figure 2 and Figure 4 As shown, the second end of the sealing end has an external thread. The open end of the protective sleeve has an internal thread. The second end is threaded to the open end.

[0049] Continue reading Figure 2 and Figure 5 As shown, the elastic pressure strip 31 has a fixed end and a movable end for pressing against the outer wall of the PE pipe 8 to be sealed. The fixed end is connected to the protective flange 3. The movable end is obliquely positioned towards the end of the insertion rod 11 furthest from the sealing end 1.

[0050] In this embodiment, the elastic pressure strip 31 has a through hole. Fasteners are inserted through the through hole and anchored in the outer wall of the PE pipe 8 to be sealed.

[0051] Preferably, the fastener is a self-tapping screw.

[0052] A power supply component 12 is embedded in the sealing end 1. The power supply component 12 is connected to the controller 9, the pressure sensor 5, and the temperature sensor 6. The power supply component is a battery. A channel is formed in the insertion rod and the sealing end. An electrical wire is installed in the channel. The power supply component is connected to the controller 9, the pressure sensor 5, and the temperature sensor 6 through the electrical wire.

[0053] This invention provides a temporary sealing method for an emergency sealing device for PE pipelines, comprising the following steps:

[0054] S1: Align the insertion rod 11 with the port of the PE pipe 8 to be sealed and insert it, so that the multiple elastic pressure strips 31 press against the outer wall of the PE pipe 8 to be sealed and the sealing pad 4 presses against the end face of the port of the PE pipe 8 to be sealed.

[0055] S2: Install fasteners on multiple elastic strips 31 to lock the outer wall of the PE pipe 8 to be sealed.

[0056] S3: After the water-swellable layer 2 comes into contact with the water inside the PE pipe 8 to be sealed, the water-swellable layer 2 expands and squeezes the inner wall of the PE pipe 8 to seal the port of the PE pipe 8. The pressure sensor 5 collects the water pressure of the PE pipe 8 to be sealed, the temperature sensor 6 collects the water temperature of the PE pipe 8 to be sealed, and the controller 9 obtains the water pressure and water temperature and outputs them.

[0057] The emergency sealing device for PE pipes of the present invention includes a sealing end with an outer side of the insertion rod that expands upon contact with water to compress the PE pipe to be sealed, thereby sealing the port of the PE pipe. On the other hand, the elastic pressure strip of the protective flange on the sealing end is locked to the outer wall of the PE pipe to be sealed by fasteners. The end of the insertion rod is equipped with a temperature and pressure sensor to collect the water pressure and water temperature inside the PE pipe to be sealed.

[0058] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A PE pipe emergency plugging device, characterized in that, The utility model relates to a PE pipeline sealing device, including: a sealing end head with opposite first and second ends, a middle part of the first end coaxially connected with a plug rod; a water-swelling layer laid on the circumference of the plug rod, the outer diameter of the water-swelling layer being adapted to the inner diameter of the PE pipeline to be sealed; a protective flange formed on the outer edge of the first end, the protective flange being arranged in a circle along the circumference of the sealing end head, the protective flange being formed with a plurality of elastic pressing strips arranged along the circumference of the protective flange, the elastic pressing strips being provided with fasteners for locking the outer wall of the PE pipeline to be sealed; a sealing pad layer laid on the end face of the first end and arranged between the protective flange and the plug rod; a pressure sensor installed at one end of the plug rod away from the sealing end head; a temperature sensor installed at one end of the plug rod away from the sealing end head; a controller installed in a receiving groove formed in the second end, the controller being connected to the pressure sensor and the temperature sensor.

2. The PE pipe emergency plugging device according to claim 1, characterized in that, The utility model further includes a protective sleeve with an open end and a closed end, the open end being detachably sleeved on the second end, and the closed end being provided with a fiber tape measure.

3. The PE pipe emergency plugging device according to claim 2, characterized in that, The second end is formed with external threads, and the open end is formed with internal threads, the second end being threadedly connected to the open end.

4. The PE pipe emergency plugging device according to claim 1, characterized in that, The controller is connected with a display screen installed in the receiving groove.

5. The PE pipe emergency plugging device according to claim 1, characterized in that, The elastic pressing strips have a fixed end connected to the protective flange and a movable end for pressing against the outer wall of the PE pipeline to be sealed, the movable end being arranged obliquely inward to one end of the plug rod away from the sealing end head.

6. The PE pipe emergency plugging device according to claim 5, characterized in that, The elastic pressing strips are provided with perforations, and the fasteners are inserted into the perforations and anchored in the outer wall of the PE pipeline to be sealed.

7. The PE pipe emergency plugging device according to claim 1, characterized in that, The sealing end head is embedded with a power supply connected to the controller, the pressure sensor, and the temperature sensor.

8. A method of temporarily plugging a PE pipe emergency plugging device according to any one of claims 1 to 7, characterized in that, The utility model includes the following steps: aligning the plug rod with the port of the PE pipeline to be sealed and inserting the plug rod so that the plurality of elastic pressing strips press against the outer wall of the PE pipeline to be sealed and the sealing pad layer presses against the end face of the port of the PE pipeline to be sealed; installing the fasteners on the plurality of elastic pressing strips to lock the outer wall of the PE pipeline to be sealed; after the water-swelling layer contacts water in the PE pipeline to be sealed, the water-swelling layer swells and presses the inner wall of the PE pipeline to be sealed to seal the port of the PE pipeline to be sealed, the pressure sensor collects the water pressure of the PE pipeline to be sealed, the temperature sensor collects the water temperature of the PE pipeline to be sealed, and the controller acquires the water pressure and the water temperature and outputs.

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