A temporary sealing device for large-diameter water pipelines

Abstract

This application relates to a temporary sealing device for large-diameter water pipelines, comprising: an annular frame, a support frame, a protective net, fixing bolts, a warning sign, and a rubber sleeve. The inner diameter of the annular frame matches the diameter of the pipeline. The hollow portion of the annular frame is covered with a protective net and a support frame is installed. A warning sign is mounted on the support frame. The annular frame is embedded in the pipeline opening. Multiple fixing bolts are provided, each penetrating the annular frame and connecting to a rubber sleeve, ensuring close contact between the rubber sleeve and the inner wall of the pipeline. The device can quickly form a breathable seal at the pipeline opening, effectively solving the problems of laboriousness and toxic gas accumulation associated with traditional sandbag sealing methods. This ensures the safety of personnel at the construction site, reduces the incidence of accidents, and because the device does not affect ventilation within the pipeline, construction personnel can directly enter the pipeline for work without waiting for extended periods of ventilation, greatly improving work efficiency.

Description

Technical Field

[0001] This application relates to the field of water conservancy and municipal engineering construction technology, and in particular to a temporary sealing device for large-diameter water transmission pipelines. Background Technology

[0002] During the construction of water pipelines in water conservancy projects, the complexity and uncertainty of land acquisition and demolition work necessitate a segmented construction approach, resulting in numerous pipeline breaks. Temporary closure of pipe openings is essential to ensure construction safety.

[0003] Currently, temporary closure of pipe openings often involves using sandbags for sealing. This method has significant drawbacks: Firstly, sealing with sandbags requires substantial manpower and time. From transporting sandbags and filling them with sand to neatly stacking them at the pipe opening, each step demands considerable effort from construction workers, greatly reducing construction efficiency and delaying project progress. Secondly, this sealing method leads to poor ventilation within the pipe, easily causing the accumulation of toxic and harmful gases in the confined space, posing a safety risk of suffocation if unauthorized personnel enter after the workers have left. Utility Model Content

[0004] To address or partially address the problems existing in related technologies, this application provides a temporary sealing device for large-diameter water pipelines. This device can safely seal the pipeline opening while facilitating ventilation inside the pipeline, and also enhances safety warning and publicity effects.

[0005] The first aspect of this application provides a temporary sealing device for a large-diameter water pipeline, comprising: an annular frame, a support frame, a protective net, fixing bolts, a warning sign, and a rubber sleeve. The inner diameter of the annular frame is matched with the diameter of the pipeline. The hollow part of the annular frame is covered with a protective net and a support frame is also installed. A warning sign is installed on the support frame. The annular frame is embedded in the pipe opening. Multiple fixing bolts are provided, each passing through the annular frame and connected to a rubber sleeve, and the rubber sleeve is in close contact with the inner wall of the pipeline.

[0006] The rubber sleeve has a claw structure, and anti-slip threads are provided on the contact surface between the rubber sleeve and the inner wall of the pipe.

[0007] The outer wall of the ring-shaped frame has multiple mounting grooves, and elastic barbs are hinged in the mounting grooves with pins. A compression spring is provided between the bottom of the groove and the barbs.

[0008] The elastic barb has a wedge-shaped acute-angle tip, which makes close contact with the inner wall of the pipe when fully open. The technical solution provided in this application can include the following beneficial effects: This application provides a temporary sealing device for large-diameter water pipelines, which can quickly form a breathable seal at the pipeline opening. This effectively solves the problems of labor-intensive methods and toxic gas accumulation associated with traditional sandbag sealing, ensuring the safety of personnel at the construction site and reducing the incidence of accidents. Furthermore, because the device does not affect ventilation within the pipeline, construction workers do not need to wait for extended periods for ventilation and can directly enter the pipeline to work, greatly improving work efficiency and effectively shortening the project duration. After the project is completed, the device can be disassembled and recycled, saving significant costs for subsequent projects.

[0009] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0010] The above and other objects, features and advantages of this application will become more apparent from the more detailed description of exemplary embodiments thereof in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments thereof.

[0011] Figure 1 This is a schematic diagram of the structure of a temporary closure device for a large-diameter water pipeline shown in an embodiment of this application; Figure 2 This is a partially enlarged schematic diagram of a temporary closure device for a large-diameter water pipeline shown in an embodiment of this application; Figure 3 This is a schematic diagram of the structure of the three-claw rubber sleeve of the temporary sealing device for a large-diameter water pipeline shown in the embodiments of this application.

[0012] Figure 4 This is a schematic diagram of the structure of the elastic barbs of the temporary sealing device for a large-diameter water pipeline shown in the embodiments of this application.

[0013] Figure label: In the diagram, 1—ring frame, 2—support frame, 3—protective net, 4—fixing bolt, 5—warning sign, 6—pipe, 7—rubber sleeve, 8—elastic barbed strip. Detailed Implementation

[0014] Embodiments of this application will now be described in more detail with reference to the accompanying drawings. While embodiments of this application are shown in the drawings, it should be understood that this application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make this application more thorough and complete, and to fully convey the scope of this application to those skilled in the art.

[0015] It should be understood that although the terms "first," "second," "third," etc., may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0016] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0017] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0018] The technical solutions of the embodiments of this application are described in detail below with reference to the accompanying drawings.

[0019] like Figure 1 The temporary enclosure device for a large-diameter water pipeline 6 shown includes: an annular frame 1, a support frame 2, a protective net 3, fixing bolts 4, a warning sign 5, and a rubber sleeve 7. The annular frame 1, with an inner diameter matching the diameter of the pipeline 6, is made of galvanized square tubing. The hollow portion of the annular frame 1 is covered with wire mesh as a protective net 3. The support frame 2, shaped like a cross, is installed inside the annular frame 1, with its four ends welded and fixed to the annular frame 1. This increases the device's support strength, and a warning sign 5 is installed on the support frame 2, displaying the slogan "Do Not Enter the Enclosed Space" to create a warning effect.

[0020] Threaded holes are made at four positions of the annular frame 1, and fixing bolts 4 are installed in the corresponding threaded holes. After the annular frame 1 is embedded in the pipe opening of the pipe 6, the device is further fixed by the fixing bolts 4 and the rubber sleeves 7 connected to the bolts. Figure 2As shown. The rubber sleeve 7 has a claw structure, and anti-slip threads are provided on the contact surface between the rubber sleeve 7 and the inner wall of the pipe 6. During installation, tightening the symmetrical bolts in the four directions of the device moves the bolts towards the center of the pipe 6, pushing the three-claw rubber sleeve 7 at the front end into contact with the inner wall of the pipe 6; as the bolts continue to tighten, the three-claw rubber sleeve 7 is compressed and undergoes elastic deformation, and the anti-slip threads on the inner side of the claws tightly engage with the inner wall of the pipe 6, increasing the coefficient of friction between the rubber sleeve 7 and the inner wall of the pipe 6, such as... Figure 3 As shown. At the same time, the separate structure of the three clamps can be specifically adapted to the local unevenness of the inner wall of the pipe 6, ensuring that each clamp can provide effective compressive force, which is ultimately converted into radial compressive force between the rubber sleeve 7 and the inner wall of the pipe 6 through the axial force of the bolt, so as to achieve a firm fixation of the device.

[0021] To further ensure the device's fixation, 3-4 mounting grooves are made on the outer wall of the annular frame 1, and elastic barbs 8 are hinged in the grooves using pins, such as... Figure 4 As shown, a miniature compression spring is fixed between the bottom of the groove and the barb. When there is no external force, the barb opens outwards due to the spring. The tip of the elastic barb 8 has a wedge-shaped acute angle structure. When the elastic barb 8 is fully open, the tip is in close contact with the inner wall of the pipe 6. During installation, before pushing the device into the end of the pipe 6, the installer manually bends the elastic barb 8 towards the frame, causing the barb to rotate around the pin in the installation groove. Simultaneously, this compresses the miniature compression spring between the bottom of the installation groove and the inner side of the barb, causing the spring to contract and store force. At this time, the barb is retracted into the installation groove and will not protrude beyond the outer wall of the frame, ensuring that the device can be smoothly pushed into the pipe 6 until it completely covers the pipe opening. After the device is in place, the installer releases the barb, the compression spring releases its stored force, generating an outward rebound force that pushes the barb to rotate in the opposite direction around the pin until the inner side of the barb contacts the arc-shaped limiting protrusion at the opening of the installation groove. At this time, the tip of the barb protrudes beyond the frame and presses tightly against the inner wall of the ductile iron pipe, providing basic support for fixation. The wedge-shaped acute angle structure at the tip of the barb makes close contact with the inner wall of the pipe 6. The clamping force generates static friction between the two, so that even if the inner wall of the pipe 6 is smooth and without texture, this friction can resist the outward sliding tendency of the device due to its own weight or slight vibration, and prevent the device from shifting along the axial direction of the pipe 6.

[0022] At the same time, the bolts in all four directions of the device have been tightened, and the three-claw anti-slip threaded rubber sleeve 7 at the front end of the bolts presses against the inner wall of the pipe 6 to form radial compression fixation; while the tightening force of the elastic barb 8 and the compressive force of the bolts form a two-way force balance, which not only prevents the device from falling outwards, but also avoids the device from excessively shifting into the pipe 6. Finally, through the synergistic effect, the device is firmly locked at the end of the pipe 6.

[0023] Finally, it should be noted that in this document, relationships such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "include," "contain," or any other variations are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0024] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0025] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0026] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application.

[0027] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A temporary sealing device for a large-diameter water pipeline, characterized in that, include: The system comprises a ring-shaped frame, a support frame, a protective net, fixing bolts, a warning sign, and a rubber sleeve. The inner diameter of the ring-shaped frame is matched with the diameter of the pipe. The hollow part of the ring-shaped frame is covered with the protective net and the support frame is also installed thereon. The warning sign is installed on the support frame. The ring-shaped frame is embedded in the pipe opening. Multiple fixing bolts are provided, each passing through the ring-shaped frame and connected to the rubber sleeve, with the rubber sleeve in close contact with the inner wall of the pipe.

2. The temporary sealing device for large-diameter water pipelines according to claim 1, characterized in that, The rubber sleeve has a claw structure, and anti-slip threads are provided on the contact surface between the rubber sleeve and the inner wall of the pipe.

3. The temporary sealing device for large-diameter water pipelines according to claim 1, characterized in that, Multiple mounting slots are provided on the outer side wall of the ring-shaped frame. Elastic barbs are hinged in the mounting slots with pins, and a compression spring is provided between the bottom of the slot and the barbs.

4. The temporary sealing device for large-diameter water pipelines according to claim 3, characterized in that, The tip of the elastic barb has a wedge-shaped acute angle structure, and when the elastic barb is fully opened, the tip is in close contact with the inner wall of the pipe.

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