Multifunctional silica gel plug

By using a silicone plug design, carbon dioxide gas generated from the reaction of citric acid liquid and sodium bicarbonate is used to expand the silicone sleeve and fix the pipe, solving the problem of needing to press and rotate in the existing technology, and realizing low-labor-intensity installation and disassembly.

CN224135461UActive Publication Date: 2026-04-17朱志刚
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
朱志刚
Filing Date
2025-05-14
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

The existing pipe plugs require forceful pressing and rotation during installation and removal, which increases the labor intensity of construction workers.

Method used

The device uses a silicone plug design. By inserting a rod to puncture the plastic film, the citric acid liquid reacts with the sodium bicarbonate granular layer to produce carbon dioxide. The pressure difference causes the silicone sleeve to expand and fix the pipe. When disassembling, the expansion state is released by balancing the air pressure through the exhaust pipe.

Benefits of technology

It reduces the labor intensity of installing and dismantling pipelines and reduces the physical requirements for construction workers.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of pipeline plugs, and discloses a multifunctional silica gel plug which comprises a base, a silica gel sleeve and a connecting shell are respectively arranged at the bottom end of the base, a storage barrel is arranged in the middle of the connecting shell, citric acid liquid is filled in the storage barrel, a plastic film is arranged at the top end of the storage barrel, and the bottom end of the storage barrel is provided with a sealing cover. A mesh enclosure is arranged on the inner wall of the top of the connecting shell; the plastic film is punctured through the inserting rod, the citric acid liquid and the sodium bicarbonate particle layer are promoted to react, a large amount of carbon dioxide is generated, the air pressure in the silicon rubber sleeve is increased, and the silicon rubber sleeve can expand due to the difference between the internal air pressure and the external air pressure, so that the silicon rubber sleeve is fixed in the pipeline. And the labor intensity during installation is reduced.
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Description

Technical Field

[0001] This utility model belongs to the field of pipe plug technology, specifically a multi-functional silicone plug. Background Technology

[0002] Pipe plugs are auxiliary devices used to seal off unwanted openings in pipes. When laying underground pipes, which requires excavation, extra pipes are usually left in place for future use. These extra pipes need to have their ends plugged to prevent sewage or rodents from entering them.

[0003] Meanwhile, the announcement (CN201821115877.5) discloses "a pipe plug", which "includes a central control head and a pipe to be installed. The central control head is provided with an installation part on one side. The installation part includes a first fixing part, a second fixing part, a third fixing part, a fourth fixing part, a second adjusting part, a third adjusting part, and a fourth adjusting part. The fourth fixing part is welded to one side of the central control head, and the fourth fixing part is provided with a fourth adjusting part on the other side. The fourth adjusting part is provided with a third fixing part on the other side."

[0004] The aforementioned pipe plugs require force to press during use to ensure blockage of the pipe, and need to be rotated and pulled out during disassembly, increasing the labor intensity of construction workers during installation.

[0005] Therefore, a multi-purpose silicone plug is proposed to address the above problems. Utility Model Content

[0006] To address the problems mentioned in the background section, this invention provides a multi-purpose silicone plug that reduces the labor intensity during installation by blocking pipes through expansion.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a multi-purpose silicone plug, comprising a base, a silicone sleeve and a connecting shell respectively provided at the bottom end of the base, a storage tube provided in the middle of the connecting shell, the interior of the storage tube being filled with citric acid liquid, a plastic film provided at the top end of the storage tube, a mesh cover provided on the inner wall of the top of the connecting shell, a layer of sodium bicarbonate particles provided between the mesh cover and the connecting shell, a plurality of evenly distributed vent holes in a ring on the surface of the connecting shell, and a film-binding assembly provided at the top end of the base.

[0008] Preferably, the ligation assembly includes a cavity and a limiting assembly. The cavity is formed inside the base, and a slip ring is slidably connected to the inner wall of the cavity. The inner wall of the slip ring is provided with an insertion rod, one end of which is sharp.

[0009] By employing the above-mentioned technical solution, the plastic film can be punctured.

[0010] Preferably, the surface of the insertion rod is provided with a groove, the other end of the insertion rod is provided with a pressure block, and the contact part between the insertion rod and the base is slidably connected by a Y-shaped sealing ring.

[0011] By adopting the above technical solution, carbon dioxide gas generated by the reaction between citric acid liquid and sodium bicarbonate particle layer is prevented from flowing into the outside through the cavity.

[0012] Preferably, a return spring is provided between the slip ring and the cavity, and the return spring is sleeved on the outside of the insertion rod.

[0013] By adopting the above technical solution, the groove is kept away from the plastic film so that it can be aligned with the limiting plate.

[0014] Preferably, the limiting component includes a guide groove, which is formed at the top of the base. A screw is rotatably connected to the inner wall of the guide groove via a bearing. An I-shaped plate that slides with the guide groove is threaded onto the surface of the screw. A limiting plate that slides with the inner wall of the groove is provided on one side of the I-shaped plate. One end of the screw passes through the inner wall of one side of the guide groove and is provided with a turntable.

[0015] By adopting the above technical solution, the insertion rod can be prevented from being pushed accidentally.

[0016] Preferably, the top of the base is provided with an exhaust pipe, one end of which passes through the top of the base and is placed inside the top of the connecting shell. A sealing cap is threaded onto the surface of the exhaust pipe. The surface of the base is provided with an anti-roll frame, and an auxiliary groove is provided at the top of the anti-roll frame. Both the anti-roll frame and the auxiliary groove are hexagonal prisms. An operating groove communicating with the auxiliary groove is provided on the surface of the anti-roll frame.

[0017] By adopting the above technical solution, carbon dioxide gas is discharged, thus relieving the swelling of the silicone sleeve.

[0018] Preferably, the silicone sleeve is fitted over the outside of the connecting shell, and the silicone sleeve is formed by sequentially connecting a first hollow cylindrical portion, a first hollow frustum portion, a second hollow cylindrical portion, a second hollow frustum portion, a third hollow cylindrical portion, and a bottom hollow frustum portion.

[0019] By adopting the above technical solution, various specifications of pipelines can be adapted and adjusted.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] 1. This utility model uses a plunger to puncture the plastic film, causing the citric acid liquid to react with the sodium bicarbonate granule layer and produce a large amount of carbon dioxide, increasing the air pressure inside the silicone sleeve. The silicone sleeve expands due to the pressure difference between the inside and outside, thus fixing the silicone sleeve inside the pipe. Compared with the prior art, it is not necessary to press the entire silicone plug forcefully when the pipe is blocked, reducing the labor intensity during installation.

[0022] 2. This utility model removes the sealing cap to release the seal on the exhaust pipe, allowing the exhaust pipe to discharge carbon dioxide gas from inside the connecting shell, thereby balancing the air pressure inside the silicone sleeve with the external air pressure and relieving the expansion state of the silicone sleeve. Compared with the prior art, it eliminates the need to rotate and pull out the entire silicone plug during disassembly, reducing the labor intensity during disassembly. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0025] Figure 3 This utility model Figure 2 A magnified structural diagram at point A;

[0026] Figure 4 This is a cross-sectional structural diagram of the base of this utility model.

[0027] In the diagram: 1. Base; 2. Silicone sleeve; 3. Connecting shell; 4. Storage tube; 5. Plastic film; 6. Mesh cover; 7. Film binding assembly; 71. Cavity; 72. Slip ring; 73. Insert rod; 74. Groove; 75. Pressure block; 76. Return spring; 8. Limiting assembly; 81. Guide groove; 82. Screw; 83. I-shaped plate; 84. Limiting plate; 9. Sodium bicarbonate granular layer; 10. Vent hole; 11. Exhaust pipe; 12. Sealing cap; 13. Roll cage; 14. Auxiliary groove; 15. Operating groove; 21. First hollow cylindrical part; 22. First hollow frustum part; 23. Second hollow cylindrical part; 24. Second hollow frustum part; 25. Third hollow cylindrical part; 26. Bottom hollow frustum part. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] The following describes an embodiment of this utility model based on its overall structure.

[0030] like Figures 1 to 4 As shown, this utility model provides a multi-purpose silicone plug, including a base 1, a silicone sleeve 2 and a connecting shell 3 fixedly mounted at the bottom end of the base 1, a storage tube 4 fixedly mounted in the middle of the connecting shell 3, the inside of the storage tube 4 being filled with citric acid liquid, a plastic film 5 fixedly mounted at the top end of the storage tube 4, a mesh cover 6 fixedly mounted on the inner wall of the top of the connecting shell 3, a sodium bicarbonate particle layer 9 being provided between the mesh cover 6 and the connecting shell 3, a plurality of vent holes 10 evenly distributed in a ring on the surface of the connecting shell 3, and a film-binding assembly 7 being provided at the top end of the base 1.

[0031] In this embodiment, the film-piercing assembly 7 includes a cavity 71 and a limiting assembly 8. The cavity 71 is opened inside the base 1. A slip ring 72 is slidably connected to the inner wall of the cavity 71. An insertion rod 73 is fixedly provided on the inner wall of the slip ring 72. One end of the insertion rod 73 is sharp to facilitate piercing the plastic film 5.

[0032] In this embodiment, the surface of the insertion rod 73 is provided with a groove 74 so that the limiting plate 84 abuts against the insertion rod 73, preventing the insertion rod 73 from moving without being fixed. The other end of the insertion rod 73 is fixed with a pressure block 75. The contact part between the insertion rod 73 and the base 1 is slidably connected by a Y-shaped sealing ring to prevent the cavity 71 from communicating with the inside of the connecting shell 3, thereby preventing the carbon dioxide gas generated by the reaction of citric acid liquid and sodium bicarbonate particle layer 9 from flowing into the outside through the cavity 71. When the finger presses against the pressure block 75, the insertion rod 73 is moved by pushing the pressure block 75 until the insertion rod 73 punctures the plastic film 5.

[0033] In a further embodiment, a return spring 76 is fixedly provided between the slip ring 72 and the cavity 71. The return spring 76 is sleeved on the outside of the insertion rod 73. The return spring 76 extends before the pressure block 75 is squeezed and pushes the slip ring 72 to move until the slip ring 72 is blocked by the cavity 71. At this time, the insertion rod 73 remains away from the plastic film 5 so that the groove 74 is aligned with the limiting plate 84. The return spring 76 is compressed by the slip ring 72 when the pressure block 75 is squeezed, and extends after the pressure block 75 is released to make the pressure block 75 return to its original position.

[0034] In this embodiment, the limiting component 8 includes a guide groove 81, which is formed at the top of the base 1. A screw 82 is rotatably connected to the inner wall of the guide groove 81 via a bearing. An I-shaped plate 83 that slides with the guide groove 81 is threaded onto the surface of the screw 82. The guide groove 81 guides the movement of the I-shaped plate 83. A limiting plate 84 that slides with the inner wall of the groove 74 is fixedly provided on one side of the I-shaped plate 83. The limiting plate 84 is inserted into the groove 74 to fix the insertion rod 73 and prevent it from being pushed due to accident. One end of the screw 82 passes through the inner wall of one side of the guide groove 81 and is fixedly provided with a turntable to facilitate the rotation of the screw 82.

[0035] In this embodiment, an exhaust pipe 11 is fixedly provided at the top of the base 1. One end of the exhaust pipe 11 passes through the top of the base 1 and is placed inside the top of the connecting shell 3. A sealing cap 12 is threadedly connected to the surface of the exhaust pipe 11. By removing the sealing cap 12, the seal on the exhaust pipe 11 is released, and carbon dioxide gas is discharged from the exhaust pipe 11, releasing the expansion state of the silicone sleeve 2. An anti-roll frame 13 is fixedly provided on the surface of the base 1. An auxiliary groove 14 is opened at the top of the anti-roll frame 13. Both the anti-roll frame 13 and the auxiliary groove 14 are set as hexagonal prisms. Silicone plugs are installed at both ends of the pipe. At this time, the pipe is laid flat on the ground, and the two anti-roll frames 13 support the pipe to prevent it from rolling along the ground, which facilitates construction and enhances practicality. An operating groove 15 is opened on the surface of the anti-roll frame 13 and communicates with the auxiliary groove 14. The operating groove 15 makes it easy to pinch the turntable.

[0036] In this embodiment, the silicone sleeve 2 is fitted over the outside of the connecting shell 3. The silicone sleeve 2 is formed by sequentially connecting a first hollow cylindrical portion 21, a first hollow frustum portion 22, a second hollow cylindrical portion 23, a second hollow frustum portion 24, a third hollow cylindrical portion 25, and a bottom hollow frustum portion 26. The first hollow cylindrical portion 21 and the first hollow frustum portion 22 can be adapted to the plugging operation of the first specification pipe, the second hollow cylindrical portion 23 and the second hollow frustum portion 24 can be adapted to the plugging operation of the second specification pipe, and the third hollow cylindrical portion 25 and the bottom hollow frustum portion 26 can be adapted to the plugging operation of the third specification pipe.

[0037] The working principle and process of a multi-purpose silicone stopper:

[0038] With the pipe placed horizontally, rotate the silicone plug horizontally by 90° so that the hollow truncated cone 26 faces the horizontally placed pipe opening. Push the silicone plug to make the silicone sleeve 2 slide into the pipe. When the silicone sleeve 2 is in contact with the pipe, rotate the screw 82. The screw 82 drives the I-shaped plate 83 and the limiting plate 84 to move, causing the limiting plate 84 to disengage from the groove 74 and release the fixing of the limiting plate 84 to the insertion rod 73. Then press the pressure block 75. The pressure block 75 drives the insertion rod 73 to move until the insertion rod 73 punctures the plastic film 5. At this time, the citric acid liquid inside the storage cylinder 4 will flow into the connecting shell 3. The citric acid liquid reacts with the sodium bicarbonate particle layer 9 and produces a large amount of carbon dioxide, increasing the air pressure inside the silicone sleeve 2. The silicone sleeve 2 will expand due to the pressure difference between the inside and outside, increasing the sliding friction between the silicone sleeve 2 and the pipe, and finally fixing the silicone sleeve 2 inside the pipe. Compared with the existing technology, it is not necessary to press the entire silicone plug when the pipe is blocked, reducing the labor intensity during installation.

[0039] Furthermore, when disassembly is required, rotate the sealing cap 12, remove the sealing cap 12 to release the seal on the exhaust pipe 11, and the exhaust pipe 11 will discharge carbon dioxide gas inside the connecting shell 3. The interior of the connecting shell 3 is connected to the interior of the silicone sleeve 2 through several vent holes 10, thereby balancing the air pressure inside the silicone sleeve 2 with the external air pressure and releasing the expansion state of the silicone sleeve 2. After the silicone sleeve 2 is released from the expansion state, the base 1 is moved horizontally to remove the silicone plug. Compared with the prior art, there is no need to rotate and pull out the entire silicone plug during disassembly, reducing the labor intensity during disassembly.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only 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 "comprising," "including," or any other variations thereof 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 process, method, article, or apparatus.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-purpose silicone plug comprising a base (1) characterised in that: The bottom of the base (1) is provided with a silicone sleeve (2) and a connecting shell (3). The middle part of the connecting shell (3) is provided with a storage tube (4). The inside of the storage tube (4) is filled with citric acid liquid. The top of the storage tube (4) is provided with a plastic film (5). The inner wall of the top of the connecting shell (3) is provided with a mesh cover (6). A layer of sodium bicarbonate particles (9) is provided between the mesh cover (6) and the connecting shell (3). The surface of the connecting shell (3) is provided with a number of air holes (10) evenly distributed in a ring. The top of the base (1) is provided with a film-binding assembly (7).

2. A multi-purpose silicone plug as claimed in claim 1, wherein: The ligation assembly (7) includes a cavity (71) and a limiting assembly (8). The cavity (71) is opened inside the base (1). A slip ring (72) is slidably connected to the inner wall of the cavity (71). A rod (73) is provided on the inner wall of the slip ring (72). One end of the rod (73) is sharp.

3. A multi-purpose silicone plug as claimed in claim 2, wherein: The surface of the insertion rod (73) is provided with a groove (74), and the other end of the insertion rod (73) is provided with a pressure block (75). The contact part between the insertion rod (73) and the base (1) is slidably connected by a Y-shaped sealing ring.

4. A multi-purpose silicone plug as claimed in claim 2, wherein: A return spring (76) is provided between the slip ring (72) and the cavity (71), and the return spring (76) is sleeved on the outside of the insert rod (73).

5. A multi-purpose silicone plug as claimed in claim 3, wherein: The limiting component (8) includes a guide groove (81), which is opened at the top of the base (1). The inner wall of the guide groove (81) is rotatably connected to a screw (82) via a bearing. The surface of the screw (82) is threadedly connected to an I-shaped plate (83) that slides with the guide groove (81). One side of the I-shaped plate (83) is provided with a limiting plate (84) that slides with the inner wall of the groove (74). One end of the screw (82) passes through the inner wall of one side of the guide groove (81) and is provided with a turntable.

6. A multi-purpose silicone plug as claimed in claim 1, wherein: The top of the base (1) is provided with an exhaust pipe (11). One end of the exhaust pipe (11) passes through the top of the base (1) and is placed inside the top of the connecting shell (3). The surface of the exhaust pipe (11) is threaded with a sealing cap (12). The surface of the base (1) is provided with an anti-roll frame (13). The top of the anti-roll frame (13) is provided with an auxiliary groove (14). Both the anti-roll frame (13) and the auxiliary groove (14) are set as hexagonal prisms. The surface of the anti-roll frame (13) is provided with an operating groove (15) that communicates with the auxiliary groove (14).

7. A multi-purpose silicone plug as claimed in claim 1, wherein: The silicone sleeve (2) is fitted over the outside of the connecting shell (3). The silicone sleeve (2) is formed by sequentially connecting the first hollow cylindrical part (21), the first hollow frustum part (22), the second hollow cylindrical part (23), the second hollow frustum part (24), the third hollow cylindrical part (25), and the bottom hollow frustum part (26).

Citation Information

Patent Citations

  • Pipe stopper

    CN208417949U