Non-pressure pipeline closed water test plugging device and test method
By using a combination of inflatable air bags and support devices, the problem of time-consuming and damage of sewage pipes is solved, and fast and efficient sealing and unsealing is achieved, adapting to pipes of different inner diameters to ensure detection accuracy and construction efficiency.
Patent Information
- Application Number
- CN202510796383.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-16
- Publication Date
- 2025-08-05
AI Technical Summary
The existing sewage pipe water-closing test sealing method takes a long time, is complex in operation and is prone to damage the pipeline, resulting in low detection efficiency and high labor load.
Using an inflatable or contractible airbag and support device, the support device can be expanded or contracted to fix or disengage from the inner wall of the pipe, combined with a pressure sensor to detect the sealing effect, achieving rapid and efficient sealing and unsealing.
It realizes fast and efficient pipeline sealing and unsealing, adapts to pipelines of different inner diameters, avoids damage to the inner wall of the pipeline, accurately reflects the results of the water-closing test, reduces manpower and material resources, and improves construction efficiency.
Smart Images
Figure CN120426469A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of pipeline plugging, and in particular to a non-pressure pipeline water-tightness test plugging device and test method. Background Art
[0002] When conducting a closed water test on a sewage pipe, it is often necessary to seal one end of the sewage pipe and then inject water into the other end to detect the sewage pipe. At present, the most common way to seal sewage pipes is to use cement or bricks to build walls to achieve the sealing of sewage pipes. However, this method has certain defects. Using bricks and concrete to build walls to seal sewage pipes is extremely time-consuming and reduces the efficiency of sewage pipe detection. In addition, the assembly and disassembly of such sealing structures are relatively complicated, which increases the workload of test personnel. The disassembly process of the wall-type sealing structure is likely to cause damage to the sewage pipe, affecting its subsequent use.
[0003] Therefore, there is a need for a sewage pipe water-tightness test plugging device and method that can be performed quickly, efficiently and non-destructively. Summary of the Invention
[0004] The purpose of this application is to provide a pressure-free pipeline water-tightness test sealing device and test method, which can quickly and efficiently seal and unseal the pipeline for water-tightness test, can adapt to pipelines of different inner diameters and avoid damaging the inner wall of the pipeline, and accurately reflect the water-tightness test structure.
[0005] This application is implemented as follows: The present application provides a non-pressure pipeline water-tightness test plugging device, which comprises: a balloon that inflates or deflates to seal or unseal the tube; at least one pressure sensor, disposed on one side of the airbag; The supporting device is connected to the other side of the airbag and is configured to expand or contract outward to support and fix on or detach from the inner wall of the pipeline.
[0006] In some optional embodiments, the support device includes a bidirectional screw, a plurality of support plates arranged at intervals along the circumference of the bidirectional screw, two threaded sleeves respectively threadedly mounted on both ends of the bidirectional screw, a plurality of connecting rods and handles, the two ends of the bidirectional screw are respectively connected to the handle and the airbag, and each threaded sleeve is hinged to each support plate through a connecting rod.
[0007] In some optional embodiments, a bowl holder is further included, wherein the convex side and the concave side of the bowl holder are respectively connected to the end of the bidirectional screw away from the handle and the air bag.
[0008] In some optional embodiments, the inner wall of the airbag is provided with at least one protective rubber strip, and the wires of the pressure sensor pass through the side of the airbag away from the support device, the protective rubber strip, the side of the airbag close to the support device, the bowl holder and the bidirectional screw in sequence.
[0009] In some optional embodiments, the inflation tube of the airbag passes through the bowl holder and the bidirectional screw in sequence.
[0010] In some optional embodiments, a bidirectional screw is connected to one end of the bowl holder and a fixed sleeve is provided with a connecting tube, which is connected to a plurality of retractable damping rods arranged at intervals along its circumference, and each damping rod is connected to an arc-shaped cleaning plate.
[0011] In some optional embodiments, the outer wall of the cleaning plate is provided with a cleaning brush.
[0012] In some optional embodiments, the pressure sensor is electrically connected to the display screen.
[0013] In some optional embodiments, a plurality of elastic rubber strips are provided on the side of the support plate away from the bidirectional screw.
[0014] The present application also provides a test method for the above-mentioned non-pressure pipeline water-tightness test plugging device, comprising the following steps: Place the non-pressure pipeline water-tightness test plugging device in the pipeline to be sealed; The control support device is expanded outwards and supported and fixed on the inner wall of the pipeline; Inflate the airbag to close the tube; Fill the pipe with water to the preset water level; A pressure sensor is used to detect the pressure on the airbag facing the water injection side; Determine whether the closed water test result is qualified based on the pressure detected by the pressure sensor.
[0015] The beneficial effects of the present application are as follows: the non-pressure pipeline water-tightness test plugging device provided by the present application includes an airbag that can expand or contract to seal or unseal the pipeline, at least one pressure sensor provided on one side of the airbag, and a support device connected to the other side of the airbag, wherein the support device is configured to expand or contract outward to support fixation to or detach from the inner wall of the pipeline. The non-pressure pipeline water-tightness test plugging device and test method provided by the present application can quickly and efficiently seal and unseal pipelines for water-tightness testing, can adapt to pipelines of different inner diameters and avoid damaging the inner wall of the pipeline, and accurately reflect the water-tightness test structure. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application 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 creative work.
[0017] Figure 1 A schematic structural diagram of the non-pressure pipeline water-tightness test plugging device provided in Example 1 of the present application; Figure 2 A schematic structural diagram of a non-pressure pipeline water-tightness test plugging device performing a water-tightness test after plugging a pipeline in a test method of the non-pressure pipeline water-tightness test plugging device provided in Example 1 of the present application; Figure 3 A schematic structural diagram of a non-pressure pipeline water-tightness test plugging device provided in Example 2 of the present application; Figure 4 This is a schematic structural diagram of the non-pressure pipeline water-tightness test plugging device provided in Example 3 of the present application.
[0018] In the figure: 100, airbag; 110, pressure sensor; 120, protective rubber strip; 130, wire; 140, inflation tube; 150, display screen; 200, support device; 210, bidirectional screw; 220, support plate; 221, elastic rubber strip; 230, threaded sleeve; 231, slip ring; 240, connecting rod; 250, handle; 260, bowl tray; 270, connecting tube; 280, damping rod; 281, connecting rod; 290, cleaning plate; 291, cleaning brush; 300, pipeline. DETAILED DESCRIPTION
[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.
[0020] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.
[0021] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.
[0022] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of this application is typically placed when in use. These terms are intended only to facilitate the description of this application and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0023] Furthermore, terms such as "horizontal," "vertical," and "overhanging" do not necessarily imply that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.
[0024] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.
[0025] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.
[0026] The features and performance of the non-pressure pipeline water-tightness test plugging device and test method of the present application are further described in detail below in conjunction with the embodiments.
[0027] Example 1 like Figure 1 As shown, the present application provides a non-pressure pipeline water-tightness test plugging device, which includes an airbag 100 that can expand or contract to seal or unseal a pipeline 300, a pressure sensor 110 connected to one side of the airbag 100, and a support device 200 connected to the other side of the airbag 100. The support device 200 is configured to expand or contract outward to support or detach from the inner wall of the pipeline 300. The supporting device 200 includes a bidirectional screw 210, four support plates 220 arranged at intervals along the circumference of the bidirectional screw 210, two threaded sleeves 230 respectively sleeved on both ends of the bidirectional screw 210 by threads, eight connecting rods 240, a bowl holder 260 connected to one end of the bidirectional screw 210 and a handle 250 connected to the other end of the bidirectional screw 210. The convex side of the bowl holder 260 is rotatably connected to one end of the bidirectional screw 210, and the concave side of the bowl holder 260 is connected to the airbag 100. Each threaded sleeve 230 is hinged to each support plate 220 through a connecting rod 240. The inner wall of the airbag 100 is provided with a protective The protective rubber strip 120 and the wire 130 of the pressure sensor 110 sequentially pass through the side of the airbag 100 away from the support device 200, the protective rubber strip 120, the side of the airbag 100 close to the support device 200, the bowl holder 260 and the bidirectional screw 210, and then extend out and are connected to the display screen 150. The inflation tube 140 of the airbag 100 sequentially passes through the bowl holder 260 and the bidirectional screw 210 and then extends out; eleven elastic rubber strips 221 are provided on the side of each support plate 220 away from the bidirectional screw 210, and the eleven elastic rubber strips 221 are arranged sequentially along the length direction of the support plate 220, and each elastic rubber strip 221 extends along the width direction of the support plate 220.
[0028] like Figure 2 As shown, the embodiment of the present application also provides a test method using the above-mentioned non-pressure pipe water-tightness test plugging device, which is used to perform a water-tightness test on a φ1000mm sewage inspection well and a DN500 reinforced concrete drainage pipe, including the following steps: Step 1: Check the installation of the newly built drainage pipes and sewage inspection wells, and make sure there are no debris, burrs or sharp edges in the pipes. Step 2: Place the non-pressure pipeline water-tightening test plugging device in the pipeline 300 to be sealed, with the airbag 100 located inside the pipeline 300, the support device 200 located outside the pipeline 300, and the end of the airbag 100 60 cm away from the end of the pipeline 300; Step 3: Control the support device 200 to expand outward and support the inner wall of the pipe 300; rotate the handle 250 to drive the bidirectional screw 210 to rotate, driving the two threaded sleeves 230 to move toward each other along the axial direction of the bidirectional screw 210, thereby driving each connecting rod 240 to rotate and drive the four support plates 220 to expand outward until they press against and support the inner wall of the pipe 300; Step 4: Electrically connect the wire 130 of the pressure sensor 110 to the display screen 150, use an air compressor to connect the inflation tube 140 of the airbag 100 to inflate the airbag 100 until the airbag 100 is sealed. Repeat the above steps and use another non-pressure pipe closed water test plugging device to plug the other end of the pipe 300. Step 5: After the plugging is completed, water is injected into the pipeline 400 through the inspection well to the preset water level required by the specification; Step 6: Use the pressure sensor 110 to detect the pressure on the water-injected side of the airbag 100 and display it on the display screen 150; Step 7: Determine whether the closed water test result is qualified based on the pressure detected by the pressure sensor 110.
[0029] Step 8. After the water-tightness test is passed, the water in the inspection well and the pipeline is pumped out, and the gas in the airbag 100 is discharged using the inflation tube 140, so that the airbag 100 shrinks and unseals the pipeline 300. The handle 250 is rotated in the opposite direction to drive the bidirectional screw 210 to rotate, and the two threaded sleeves 230 are driven to move away from each other along the axial direction of the bidirectional screw 210, thereby pushing each connecting rod 240 to rotate and drive the four support plates 220 to shrink inward and separate from the inner wall of the pipeline 300, and the pressure-free pipeline water-tightness test sealing device can be taken out.
[0030] The pressure-free pipe water-tightness test plugging device and test method provided in the embodiment of the present application seals the pipe 300 by supporting the airbag 100 that can be inflated and deflated to expand or contract to seal or unseal the pipe 300 through the provided support device 200. The support device 200 can be used to quickly and efficiently support, fix or detach the inner wall of the pipe 300 of different diameters, without being affected by the environment outside the pipe 300 and without damaging the pipe 300, thereby achieving the effect of adapting to a variety of pipes and a variety of construction environments. At the same time, the display screen 150 can be used to intuitively display the pressure detected by the pressure sensor 110 to evaluate the water-tightness test results, avoiding the situation where errors are caused by manual measurement of water level changes, achieving the effect of more accurately reflecting the water-tightness test results, recording the water seepage situation of the pipe throughout the process, and reducing the use of labor. At the same time, the pressure-free pipe water-tightness test plugging device is reusable, which solves the problems of poor sealing effect, inconvenient installation and disassembly, and low reuse rate of traditional pipe plugging, thereby achieving the purpose of saving manpower and material resources and improving construction efficiency.
[0031] Among them, a protective rubber strip 120 is provided on the inner wall of the airbag 100, and the wire 130 of the pressure sensor 110 passes through the side of the airbag 100 away from the support device 200, the protective rubber strip 120, the side of the airbag 100 close to the support device 200, the bowl holder 260 and the bidirectional screw 210 in sequence, and then extends out and is connected to the display screen 150. The protective rubber strip 120 can be used to wrap and protect the wire 130 to prevent the wire 130 from being exposed to the outside and damaged and affecting the airtightness between the airbag 100 and the inner wall of the pipe 300; each support plate 220 is provided with an elastic rubber strip 221 on the side away from the bidirectional screw 210, and the elastic rubber strip 221 can be used to elastically press the inner wall of the pipe 300, thereby improving the connection tightness between the support plate 220 and the inner wall of the pipe 300 while also avoiding damage to the pipe 300. The bidirectional screw 210 is connected to and supports the airbag 100 through the bowl holder 260, which can ensure that the airbag 100 is stably supported to expand and press against the inner wall of the pipeline 300 to achieve a sealing operation and perform a water-tightness test.
[0032] Example 2 like Figure 3 As shown, an embodiment of the present application provides a pressure-free pipe water-tightness test sealing device, which has roughly the same structure as the pressure-free pipe water-tightness test sealing device provided in Example 1, with the difference that, in this embodiment, a connecting tube 270 is fixedly provided on one end of the bidirectional screw 210 connected to the bowl holder 260, and the connecting tube 270 is connected to four retractable damping rods 280 arranged at intervals along its circumference, and each damping rod 280 is connected to an arc-shaped cleaning plate 290, and a cleaning brush 291 is provided on the outer wall of the cleaning plate 290.
[0033] The pressure-free pipe water-tightness test sealing device provided in the embodiment of the present application is provided with a connecting tube 270 fixedly sleeved on one end of the bidirectional screw 210 connected to the bowl holder 260. When the user rotates the handle 250 to drive the bidirectional screw 210 to rotate, the connecting tube 270 is driven to rotate, thereby driving four retractable damping rods 280 arranged at intervals along its circumference to rotate and driving four cleaning plates 290 to rotate, so as to utilize the cleaning brush 291 provided on the outer wall of the cleaning plate 290 to clean the inner wall of the pipe 300. Before using the pressure-free pipe water-tightness test sealing device to seal the inner wall of the pipe 300, the cleaning brush 291 provided on the outer wall of the cleaning plate 290 is first used to clean the inner wall of the pipe 300 where the airbag 100 is expanded and pressed to seal the inner wall. This can prevent debris on the inner wall of the pipe 300 from affecting the airbag 100 from sealing the pipe 300.
[0034] Example 3 like Figure 4As shown, an embodiment of the present application provides a pressure-free pipe water-tightness test sealing device, which has roughly the same structure as the pressure-free pipe water-tightness test sealing device provided in Example 2, with the difference being that, in this embodiment, a slip ring 231 rotatable around its axis is sleeved on the outer wall of the threaded sleeve 230 on the bidirectional screw 210 near one end of the bowl holder 260, and a connecting rod 281 is hinged between the slip ring 231 and each damping rod 280, and the damping rod 280 is hinged to the corresponding cleaning plate 290. When the bidirectional screw 210 rotates to drive the threaded sleeve 230 to move along its axial direction, the slip ring 231 and each connecting rod 281 drive each damping rod 280 to rotate toward or away from the bidirectional screw 210 so that each cleaning plate 290 moves along the inner wall of the pipe 300.
[0035] The non-pressure pipeline closed water test plugging device provided in the embodiment of the present application is provided with a slip ring 231 that can rotate around its axis on the outer wall of the threaded sleeve 230 near one end of the bowl holder 260 on the bidirectional screw 210. A connecting rod 281 is hinged between the slip ring 231 and each damping rod 280. The damping rod 280 is hinged to the corresponding cleaning plate 290. When the user rotates the bidirectional screw 210, the connecting rods 240 are driven to rotate and drive the four support plates 220 to expand outward to press and support the inner wall of the pipe 300. At the same time, the threaded sleeve 230 near one end of the bowl holder 260 drives the slip ring 231 to move axially along the threaded sleeve 230, driving each connecting rod 281 and each damping rod 280 to rotate toward the direction close to the bidirectional screw 210 to make each cleaning plate 290 move along the inner wall of the pipe 300, so that each cleaning plate 290 cleans the inner wall of the pipe 300 outside the airbag 100 and then moves to the outside of the bidirectional screw 210, preventing the cleaning plate 290 from affecting the expansion of the airbag 100 and squeezing the closed pipe 300.
[0036] The embodiments described above are part of the embodiments of the present application, rather than all of the embodiments. The detailed description of the embodiments of the present application is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.
Claims
1. A non-pressure pipeline water-tightness test plugging device, characterized in that: It includes: a balloon that inflates or deflates to seal or unseal the tube; at least one pressure sensor, disposed on one side of the airbag; The supporting device is connected to the other side of the airbag and is configured to expand or contract outward to support and fix on or detach from the inner wall of the pipe.
2. The non-pressure pipeline closed water test plugging device according to claim 1 is characterized in that: The supporting device includes a bidirectional screw, a plurality of support plates arranged at intervals along the circumference of the bidirectional screw, two threaded sleeves respectively threadedly mounted on the two ends of the bidirectional screw, a plurality of connecting rods and handles. The two ends of the bidirectional screw are respectively connected to the handle and the airbag, and each threaded sleeve is hinged to each support plate through a connecting rod.
3. The non-pressure pipeline water-tightness test plugging device according to claim 2 is characterized in that: A bowl holder is also included, wherein a convex side and a concave side of the bowl holder are respectively connected to an end of the bidirectional screw away from the handle and the air bag.
4. The non-pressure pipeline water-tightness test plugging device according to claim 3 is characterized in that: The inner wall of the airbag is provided with at least one protective rubber strip, and the wire of the pressure sensor passes through the side of the airbag away from the support device, the protective rubber strip, the side of the airbag close to the support device, the bowl holder and the bidirectional screw in sequence.
5. The non-pressure pipeline water-tightness test plugging device according to claim 3 is characterized in that: The inflation tube of the air bag passes through the bowl holder and the bidirectional screw in sequence.
6. The non-pressure pipeline water-tightness test plugging device according to claim 3 is characterized in that: One end of the bidirectional screw connected to the bowl holder is fixedly sleeved with a connecting tube, and the connecting tube is connected to a plurality of retractable damping rods arranged at intervals along its circumference, and each of the damping rods is connected to an arc-shaped cleaning plate.
7. The non-pressure pipeline water-tightness test plugging device according to claim 6, characterized in that: A cleaning brush is provided on the outer wall of the cleaning plate.
8. The non-pressure pipeline water-tightness test plugging device according to claim 1 is characterized in that: The pressure sensor is electrically connected to a display screen.
9. The non-pressure pipeline water-tightness test plugging device according to claim 2, characterized in that: A plurality of elastic rubber strips are provided on one side of the support plate away from the bidirectional screw.
10. The test method of the non-pressure pipeline water-tightness test plugging device according to any one of claims 1 to 9, characterized in that: The following steps are involved: Place the non-pressure pipeline water-tightness test plugging device in the pipeline to be sealed; Controlling the support device to expand outward and support and fix it on the inner wall of the pipe; Inflating the airbag until it closes the tube; Filling the pipe with water to a preset water level; Using a pressure sensor to detect the pressure on the airbag facing the water injection side; The pressure detected by the pressure sensor is used to determine whether the closed water test result is qualified.