Pipeline end plug

Abstract

The utility model provides a pipeline end portion plug which comprises a pipeline end portion T-shaped plug block, the pipeline end portion T-shaped plug block comprises a circular plate and a circular boss integrally arranged on one side face of the circular plate, and after the circular boss is plugged into the pipeline end portion, the circular plate can abut against the outer side of the pipeline end portion. A first mounting groove is formed in the circular boss, and a second mounting groove is formed in the side face, back to the circular boss, of the circular plate. According to the pipeline end plug, a plurality of components work cooperatively, the circular boss can be tightly attached to the ends of pipelines with different inner diameters through an inflation expansion mechanism of the annular air bag, the circular boss is effectively prevented from falling off, and the pipeline end plug is suitable for plugging pipelines with various pipe diameters. The plug can reliably prevent concrete from entering a pipeline in scenes such as tunnel construction, construction safety and engineering quality are guaranteed, meanwhile, multiple factors such as performance, cost and operation convenience are considered in material selection and structural design, and the plug has high practicability and economical efficiency.

Description

Technical Field

[0001] This utility model relates to the field of pipeline end sealing technology, specifically to a pipeline end plug. Background Technology

[0002] Pipeline systems are widely used in engineering fields such as tunnel construction. During construction, it is necessary to effectively seal the ends of (PVC) pipes that are not in use temporarily or need protection to prevent debris (such as concrete) from entering the pipes, thereby affecting the subsequent use of the pipes or causing blockages. Therefore, this type of pipe end plug with good sealing and adaptability has been developed to meet engineering requirements.

[0003] Currently, Chinese patent CN213576192U discloses a pipe plug, which includes a plug body and a pull tab. The pull tab is added to the top of the inner hole of the plug body, horizontally positioned within the plug body with one end connected to the top of the inner hole. The length of the pull tab is not less than the length of the plug body. Using the pull tab to remove the pipe plug will not damage its outer edge, and it is convenient for manual or machine removal, saving time and improving the quality of the pipe plug, making it suitable for widespread use. Furthermore, Chinese patent CN207421625U discloses a pipe plug, including a threaded pipe and a sealing end disposed at one end of the threaded pipe. The pipe wall of the threaded pipe has a notch that penetrates the pipe wall, extending from the other end of the threaded pipe towards the sealing end. When a pipe plug is placed at a pipe opening, the notch at the front of the plug allows pressure to escape from the pipe. This facilitates easy connection between the threaded end of the plug and the threads of the pipe opening, allowing the plug to be tightened. Once the notch is fully inserted into the pipe, the opening is sealed, preventing the installation of existing pipe plugs that cannot be installed due to pressure within the pipe.

[0004] Although the above solutions solve the corresponding technical problems, they still have the drawback of being difficult to apply to pipe sealing of various diameters.

[0005] Therefore, a pipe end plug is proposed. Utility Model Content

[0006] The present invention aims to solve the problems mentioned in the background art by providing a pipe end plug.

[0007] The specific technical solution is as follows:

[0008] A pipe end plug, comprising:

[0009] A T-shaped plug at the end of a pipe, comprising a circular plate and a circular boss integrally formed on one side of the circular plate. When the circular boss is inserted into the pipe end, the circular plate can abut against the outside of the pipe end.

[0010] The circular boss has a mounting groove 1 inside, and the circular plate has a mounting groove 2 on the side facing away from the circular boss. The mounting groove 2 is connected to the mounting groove 1.

[0011] A cover plate is fixedly installed inside the second mounting slot, and an annular airbag is installed inside the first mounting slot. The annular airbag is enclosed inside the first mounting slot by the cover plate, and a valve is fixedly and connected to the annular airbag. The valve penetrates the cover plate and protrudes.

[0012] In a preferred embodiment of this utility model, the circular plate, the circular boss, and the cover plate are all made of EVA high-foaming material.

[0013] In a preferred embodiment of this utility model, the diameter of the end of the circular boss that connects to the circular plate is larger than the diameter of the other end, but smaller than the diameter of the circular plate.

[0014] As a preferred embodiment of this utility model, the cover plate has a perforation for the valve stem to pass through.

[0015] As a preferred embodiment of this utility model, the inner ring of the annular airbag is fitted with an annular support ring, and the axial cross-section of the annular support ring is I-shaped.

[0016] As a preferred embodiment of this utility model, the annular support ring is made of rigid plastic, and the annular support ring has a plurality of through holes along its axial direction, and the plurality of through holes are arranged at equal angles around the central axis of the annular support ring.

[0017] As a preferred embodiment of this utility model, it also includes a ball needle, which is matched with the valve stem, and the valve stem has a rubber valve core.

[0018] In a preferred embodiment of this utility model, the ball needle is fixedly installed at one end of the connecting belt, and the other end of the connecting belt is fixedly installed at the edge of the circular plate.

[0019] This utility model has the following beneficial effects:

[0020] The pipe end plug provided by this utility model consists of multiple components working together. Through the inflation mechanism of the annular airbag, the circular boss can tightly fit the pipe ends of different inner diameters, effectively preventing them from falling off. It is suitable for sealing pipes of various diameters. This plug can reliably prevent concrete from entering the pipe in scenarios such as tunnel construction, ensuring construction safety and project quality. At the same time, it takes into account performance, cost, and ease of operation in material selection and structural design, and has high practicality and economy. Attached Figure Description

[0021] Figure 1 A three-dimensional structural diagram of the pipe end plug provided in an embodiment of this utility model;

[0022] Figure 2 A schematic diagram of the planar structure of the pipe end plug provided in an embodiment of this utility model;

[0023] Figure 3 A three-dimensional structural schematic diagram of the pipe end plug provided in an embodiment of this utility model from another perspective;

[0024] Figure 4 A semi-sectional view of the pipe end plug provided in an embodiment of this utility model;

[0025] Figure 5 A cross-sectional view of the pipe end plug provided in an embodiment of this utility model;

[0026] Figure 6 This is an exploded structural diagram of a pipe end plug provided in an embodiment of the present utility model;

[0027] Figure 7 This is an exploded structural diagram of the pipe end plug provided in an embodiment of the present invention.

[0028] In the attached image:

[0029] 1. Round plate; 101. Mounting groove two; 2. Circular boss; 201. Mounting groove one; 3. Cover plate; 301. Perforation; 4. Annular airbag; 401. Valve nozzle; 5. Annular support ring; 501. Through hole; 6. Connecting strip; 7. Ball needle. Detailed Implementation

[0030] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0031] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0032] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model 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. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0033] In the description of this utility model, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating the connection relationship between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it 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 utility model based on the specific circumstances.

[0034] Example

[0035] The pipe end plug provided in this embodiment, such as Figures 1-7 As shown, it includes: a T-shaped plug at the end of the pipe, the T-shaped plug at the end of the pipe includes a circular plate 1 and a circular boss 2 integrally provided on one side of the circular plate 1. When the circular boss 2 is inserted into the inside of the pipe end, the circular plate 1 can resist the outside of the pipe end.

[0036] The circular boss 2 has a mounting groove 201 inside, and the circular plate 1 has a mounting groove 101 on the side facing away from the circular boss 2. The mounting groove 101 is connected to the mounting groove 201.

[0037] Among them, a cover plate 3 is fixedly installed inside the second mounting slot 101, and an annular airbag 4 is installed inside the first mounting slot 201. The annular airbag 4 is sealed inside the first mounting slot 201 by the cover plate 3, and a valve 401 is fixedly and connected to the annular airbag 4. The valve 401 passes through the cover plate 3 and is exposed.

[0038] The pipe end plug using the above technical solution mainly consists of a circular plate 1, a circular boss 2, a cover plate 3, an annular airbag 4, and a valve 401. The valve 401 is used to inflate the annular airbag 4 or expel the gas inside the annular airbag 4. When the annular airbag 4 is inflated, it expands and pushes the circular boss 2 outward, causing the circular boss 2 to expand. This prevents the circular boss 2 from easily falling off from the inside of the pipe end. In addition, it can also be used for sealing pipe ends of different diameters with an inner diameter slightly larger than the outer diameter of the circular boss 2, showing good applicability. After sealing the pipe end, it can prevent concrete from being poured into the inside of the pipe during tunnel construction, thereby ensuring the smooth construction of the tunnel.

[0039] Specifically, in this embodiment, in order to reduce manufacturing costs while ensuring sealing performance and allowing the circular boss 2 to expand, the circular plate 1, the circular boss 2, and the cover plate 3 are all made of EVA high-foaming material. In addition, EVA high-foaming material is lightweight, low-cost, and has a certain degree of elasticity and cushioning, making the plug easy to process and shape, less likely to damage the pipeline during installation and use, and reducing the overall weight, making it easier to operate and transport.

[0040] Specifically, in this embodiment, the diameter of the end of the circular boss 2 connected to the circular plate 1 is larger than the diameter of the other end and smaller than the diameter of the circular plate 1. The diameter of the connecting end of the circular boss 2 is larger than the other end and smaller than the diameter of the circular plate 1. This structural design is conducive to the smooth insertion of the circular boss 2 into the end of the pipe and can prevent it from going too deep into the pipe. At the same time, the circular plate 1 can effectively resist the outside of the end of the pipe, enhancing the stability of the sealing.

[0041] Specifically, in this embodiment, the cover plate 3 has a perforation 301 for the valve stem 401 to pass through. The perforation 301 provides an installation channel for the valve stem 401, ensuring that the annular airbag 4 can be easily inflated and deflated. It is a key structure for realizing the function of the annular airbag 4 and ensures the sealing and functionality of the entire plug.

[0042] Specifically, in this embodiment, an annular support ring 5 is fitted into the inner ring of the annular airbag 4. The axial cross-section of the annular support ring 5 is I-shaped. The annular support ring 5 is made of rigid plastic, and several through holes 501 are opened on the annular support ring 5 along its axial direction. The several through holes 501 are arranged at equal angles around the central axis of the annular support ring 5. The annular support ring 5 can enhance the structural strength and stability of the annular airbag 4. When the annular airbag 4 is inflated, the I-shaped cross-section of the annular support ring 5 can better withstand the pressure and evenly push the circular protrusion 2 outward, so that it fits tightly against the inner wall of the pipe and prevents it from falling off. At the same time, it optimizes the force distribution and improves the sealing effect. The rigid plastic material ensures sufficient support force, so that the annular airbag 4 can stably open the circular protrusion 2 when it expands. The design of the through holes 501 helps to reduce the manufacturing cost of the annular support ring 5 and also reduces the weight of the annular support ring 5.

[0043] Specifically, in this embodiment, a ball needle 7 is also included. The ball needle 7 is matched with the valve stem 401, which has a rubber valve core. The ball needle 7 is fixedly installed at one end of the connecting strap 6, and the other end of the connecting strap 6 is fixedly installed on the edge of the circular plate 1. The matching of the ball needle 7 with the valve stem 401 facilitates the inflation and deflation of the annular airbag 4. The connecting strap 6 connects the ball needle 7 to the circular plate 1 to prevent the ball needle 7 from being lost, making it convenient for repeated use on the construction site and improving the convenience of operation and the storage of the tool.

[0044] In summary, the pipe end plug provided in this embodiment has the following advantages:

[0045] This pipe end plug consists of multiple components working together. Through the inflation mechanism of the annular airbag 4, the circular protrusion 2 can tightly fit the pipe ends of different inner diameters, effectively preventing them from falling off. It is suitable for sealing pipes of various diameters. This plug can reliably prevent concrete from entering the pipe in scenarios such as tunnel construction, ensuring construction safety and project quality. Furthermore, its material selection and structural design take into account performance, cost, and ease of operation, making it highly practical and economical.

[0046] In use, align the circular protrusion 2 of the T-shaped plug at the end of the pipe with the end of the pipe and insert it until the circular plate 1 abuts against the outside of the end of the pipe; then use the ball needle 7 fixed on the connecting strap 6 to insert the valve 401 (the valve 401 has a rubber valve core to ensure airtightness). You can inflate the annular airbag 4 with an air pump or air pump. The annular airbag 4 expands and pushes the circular protrusion 2 outward through the annular support ring 5, so that it fits tightly against the inner wall of the pipe, thus completing the sealing; when it is necessary to remove the plug, use the ball needle 7 to release the gas in the annular airbag 4, and the plug can be removed from the end of the pipe.

[0047] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pipe end plug, characterized in that, include: A T-shaped plug at the end of a pipe, comprising a circular plate (1) and a circular boss (2) integrally formed on one side of the circular plate (1). When the circular boss (2) is inserted into the end of the pipe, the circular plate (1) can abut against the outside of the end of the pipe. The circular boss (2) has a mounting groove 1 (201) inside, and the circular plate (1) has a mounting groove 2 (101) on the side facing away from the circular boss (2). The mounting groove 2 (101) is connected to the mounting groove 1 (201). A cover plate (3) is fixedly installed inside the second mounting slot (101), and an annular airbag (4) is installed inside the first mounting slot (201). The annular airbag (4) is encapsulated inside the first mounting slot (201) by the cover plate (3), and a valve (401) is fixedly and connected to the annular airbag (4). The valve (401) passes through the cover plate (3) and is exposed.

2. The pipe end plug according to claim 1, characterized in that, The circular plate (1), the circular boss (2), and the cover plate (3) are all made of EVA high-foaming material.

3. The pipe end plug according to claim 2, characterized in that, The diameter of the end of the circular boss (2) that connects to the circular plate (1) is larger than the diameter of the other end, but smaller than the diameter of the circular plate (1).

4. The pipe end plug according to claim 1, characterized in that, The cover plate (3) has a perforation (301) for the valve (401) to pass through.

5. The pipe end plug according to claim 1, characterized in that, The inner ring of the annular airbag (4) is fitted with an annular support ring (5), and the axial cross section of the annular support ring (5) is I-shaped.

6. The pipe end plug according to claim 5, characterized in that, The annular support ring (5) is made of hard plastic, and a plurality of through holes (501) are provided on the annular support ring (5) along its axial direction. The plurality of through holes (501) are arranged in a circumferential angle around the central axis of the annular support ring (5).

7. The pipe end plug according to claim 6, characterized in that, It also includes a ball needle (7) that is matched with the valve stem (401), the valve stem (401) having a rubber valve core.

8. The pipe end plug according to claim 6, characterized in that, The ball needle (7) is fixedly installed at one end of the connecting strip (6), and the other end of the connecting strip (6) is fixedly installed at the edge of the circular plate (1).

Images