Internal and external plug-in type leakage-proof pipe fitting

Abstract

The utility model relates to the technical field of pipeline connection, and discloses an inside and outside plug-in type leakage-proof pipe fitting which comprises a pipeline, positioning grooves are formed in the two ends of the pipeline, a connecting pipe is connected to the inner wall of the pipeline in a plug-in mode, a limiting ring plate is fixedly connected to the surface of the connecting pipe, and a positioning plate is fixedly connected to the inner wall of the limiting ring plate. The connecting pipe is inserted into the pipeline until the positioning plate completely enters the positioning groove, at the moment, the limiting ring plate is limited, meanwhile, the preliminary sealing effect is achieved, water source leakage is prevented, then the air inlet pipe is connected with external inflation equipment, the interior of the air inlet pipe is inflated through the inflation equipment, and the air inlet pipe is sealed. The sealing air bag is expanded to be completely attached to the inner wall of the pipeline, a water source is effectively prevented from leaking through a gap between the pipeline and the connecting pipe, and therefore the sealing effect is improved, after inflation is completed, the air inlet pipe is in threaded connection with the sealing cover, the air inlet pipe is sealed, and air leakage is prevented.

Description

Technical Field

[0001] This utility model relates to the field of pipe connection technology, and in particular to an internal and external plug-in leak-proof pipe fitting. Background Technology

[0002] Plug-in fittings are pipe fittings used to connect pipes, achieving quick connections through a plug-in method. They are widely used in water supply pipes, heating pipes, and natural gas transmission pipelines. These fittings are typically made of metal or plastic and feature simple structure, easy installation, and good sealing performance. The design of plug-in fittings eliminates the need for additional welding or threaded connections; simply insert the pipe into the fitting's interface, and a tight connection is achieved through built-in sealing rings or retaining rings, effectively preventing leaks.

[0003] Plug-in fittings typically use a straight-wall socket method, but gaps still exist at the joint between the pipe and the connecting pipe, making it easy for water to leak. Although installing a sealing ring at the pipe-connecting pipe joint can improve the sealing effect, the sealing ring will age over time, leading to leakage problems. Therefore, we propose an internal and external plug-in leak-proof fitting. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides an internal and external plug-in type leak-proof pipe fitting.

[0005] This utility model is achieved using the following technical solution: an internal and external plug-in leak-proof pipe fitting, including a pipe, both ends of which are provided with positioning grooves, a connecting pipe is inserted into the inner wall of the pipe, a limiting ring plate is fixedly connected to the surface of the connecting pipe, a positioning plate is fixedly connected to the inner wall of the limiting ring plate, an air inlet groove is provided on the surface of the connecting pipe and the inner wall of the limiting ring plate, an installation groove is provided at both ends of the connecting pipe, and a sealing component is provided on the surface of the connecting pipe;

[0006] The sealing assembly includes a sealing airbag, the inner wall of which is connected to an air inlet pipe, and a sealing cap is threaded to the end of the air inlet pipe away from the sealing airbag.

[0007] The above technical solution involves inserting the connecting pipe into the interior of the pipeline until the positioning plate is fully inserted into the positioning groove. At this point, the limiting ring plate acts as a limit and provides a preliminary sealing effect to prevent water leakage. Then, the air inlet pipe is connected to an external inflation device, which inflates the air inlet pipe, causing the sealing airbag to expand and completely adhere to the inner wall of the pipeline. This effectively prevents water leakage through the gap between the pipeline and the connecting pipe, thereby improving the sealing effect. The sealing cap keeps the air inlet pipe sealed, preventing gas leakage.

[0008] As a further improvement to the above solution, the sealing airbag is located inside the mounting groove, the air inlet pipe is located inside the mounting groove, and the end of the air inlet pipe away from the sealing airbag extends to the outside of the limiting ring plate.

[0009] The above technical solution uses the mounting groove to limit the position of the sealing airbag, preventing it from moving when inflated.

[0010] As a further improvement to the above solution, the surface of the positioning plate is inserted into the inner wall of the positioning groove.

[0011] As a further improvement to the above solution, a sealing gasket is fixedly connected to the inner wall of the limiting ring plate.

[0012] As a further improvement to the above solution, the surface of the pipe is slidably connected with a fixing collar.

[0013] With the above technical solution, the fixed collar is slidably connected to the pipe surface, allowing the fixed collar to slide and adjust its position.

[0014] As a further improvement to the above solution, one end of the fixing collar is fixedly connected to an inclined insert plate.

[0015] The above technical solution allows the fixed collar to slide towards the limiting ring plate, enabling the inclined insert plate to enter the interior of the limiting ring plate. When the inclined insert plate enters the interior of the limiting ring plate, it will squeeze the sealing gasket, further improving the sealing effect and effectively preventing water leakage or seepage.

[0016] As a further improvement to the above solution, one end of the inclined insert plate extends into the interior of the limiting ring plate and contacts the surface of the sealing gasket.

[0017] With the above technical solution, both the inclined insertion plate and the sealing gasket are set as inclined surfaces to facilitate subsequent insertion.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] This invention utilizes a limiting ring plate, a positioning plate, and a sealing assembly. Specifically, the connecting pipe is inserted into the interior of the pipe until the positioning plate is fully inserted into the positioning groove. At this point, the limiting ring plate acts as a limit and provides an initial sealing effect to prevent water leakage. Then, the air inlet pipe is connected to an external inflation device, which inflates the air inlet pipe, causing the sealing airbag to expand and completely adhere to the inner wall of the pipe. This effectively prevents water leakage through the gap between the pipe and the connecting pipe, thereby improving the sealing effect. After inflation, the air inlet pipe is threadedly connected to the sealing cap to seal the air inlet pipe and prevent gas leakage.

[0020] This utility model incorporates a sealing gasket, a fixing collar, and an inclined insert plate. Specifically, the fixing collar slides towards the position of the limiting ring plate, allowing the inclined insert plate to enter the interior of the limiting ring plate. When the inclined insert plate enters the interior of the limiting ring plate, it compresses the sealing gasket, further improving the sealing effect and effectively preventing water leakage or seepage. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic cross-sectional view of the present invention.

[0023] Figure 3 This is a schematic diagram of the exploded structure of this utility model;

[0024] Figure 4 This utility model Figure 2 Enlarged structural diagram of section A in the middle;

[0025] Figure 5 This is a schematic diagram of the pipeline structure of this utility model;

[0026] Figure 6 This utility model Figure 3 Enlarged structural diagram of section B.

[0027] Explanation of key symbols:

[0028] 1. Pipe; 2. Positioning groove; 3. Connecting pipe; 4. Limiting ring plate; 5. Positioning plate; 6. Air inlet pipe groove; 7. Mounting groove; 8. Sealing assembly; 801. Sealing airbag; 802. Air inlet pipe; 803. Sealing cover; 9. Sealing gasket; 10. Fixing collar; 11. Angled insert plate. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0030] Example:

[0031] Please combine Figure 1-6 An internal and external plug-in leak-proof pipe fitting according to this embodiment includes a pipe 1, both ends of the pipe 1 are provided with positioning grooves 2, a connecting pipe 3 is inserted into the inner wall of the pipe 1, a limiting ring plate 4 is fixedly connected to the surface of the connecting pipe 3, a positioning plate 5 is fixedly connected to the inner wall of the limiting ring plate 4, an air inlet groove 6 is provided on the surface of the connecting pipe 6 and the inner wall of the limiting ring plate 4, an installation groove 7 is provided at both ends of the connecting pipe 3, and a sealing component 8 is provided on the surface of the connecting pipe 3.

[0032] The sealing assembly 8 includes a sealing airbag 801, the inner wall of which is connected to an air inlet pipe 802. The end of the air inlet pipe 802 away from the sealing airbag 801 is threadedly connected to a sealing cap 803. The air inlet pipe 802 is connected to an external inflation device, and air is inflated into the air inlet pipe 802 through the inflation device, so that the sealing airbag 801 expands and completely fits against the inner wall of the pipe 1, effectively preventing water from leaking through the gap between the pipe 1 and the connecting pipe 3, thereby improving the sealing effect. After inflation, the air inlet pipe 802 is threadedly connected to the sealing cap 803 to seal the air inlet pipe 802 and prevent gas leakage.

[0033] The sealing airbag 801 is located inside the mounting groove 7, and the air inlet pipe 802 is located inside the mounting groove 7. The end of the air inlet pipe 802 away from the sealing airbag 801 extends to the outside of the limiting ring plate 4.

[0034] The surface of the positioning plate 5 is inserted into the inner wall of the positioning groove 2. The connecting pipe 3 is inserted into the inside of the pipe 1 until the positioning plate 5 is completely inside the positioning groove 2. At this time, the limiting ring plate 4 is limited and a preliminary sealing effect is achieved to prevent water leakage.

[0035] A sealing gasket 9 is fixedly connected to the inner wall of the limiting ring plate 4.

[0036] The surface of pipe 1 is slidably connected with a fixed collar 10.

[0037] One end of the fixing collar 10 is fixedly connected to the inclined plate 11. The fixing collar 10 is slid towards the position of the limiting ring plate 4, so that the inclined plate 11 enters the interior of the limiting ring plate 4. When the inclined plate 11 enters the interior of the limiting ring plate 4, it will squeeze the sealing gasket 9, which further improves the sealing effect and effectively prevents water leakage or seepage.

[0038] One end of the inclined plate 11 extends into the interior of the limiting ring plate 4 and contacts the surface of the sealing gasket 9.

[0039] The implementation principle of an internal and external plug-in leak-proof pipe fitting in this application embodiment is as follows: During installation, the fixing collar 10 is first slidably fitted onto the surface of the pipe 1, and then the connecting pipe 3 is inserted into the interior of the pipe 1 until the positioning plate 5 is completely inserted into the interior of the positioning groove 2. At this time, the limiting ring plate 4 is limited and a preliminary sealing effect is achieved to prevent water leakage. Then, the air inlet pipe 802 is connected to an external inflation device, and air is inflated into the interior of the air inlet pipe 802 through the inflation device, so that the sealing airbag 801 expands and completely adheres to the inner wall of the pipe 1, effectively preventing water leakage through the gap between the pipe 1 and the connecting pipe 3, thereby improving the sealing effect. After inflation, the air inlet pipe 802 is threadedly connected to the sealing cover 803 to seal the air inlet pipe 802 and prevent gas leakage. Then, the fixing collar 10 is slid towards the position of the limiting ring plate 4, so that the inclined insert plate 11 enters the interior of the limiting ring plate 4. When the inclined insert plate 11 enters the interior of the limiting ring plate 4, it will squeeze the sealing gasket 9, further improving the sealing effect and effectively preventing water leakage or seepage.

[0040] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A type of leak-proof pipe fitting with internal and external insertion, characterized in that, The system includes a pipe (1), both ends of which are provided with positioning grooves (2), a connecting pipe (3) is inserted into the inner wall of the pipe (1), a limiting ring plate (4) is fixedly connected to the surface of the connecting pipe (3), a positioning plate (5) is fixedly connected to the inner wall of the limiting ring plate (4), an air inlet groove (6) is provided on the surface of the connecting pipe (3) and the inner wall of the limiting ring plate (4), an installation groove (7) is provided at both ends of the connecting pipe (3), and a sealing component (8) is provided on the surface of the connecting pipe (3). The sealing assembly (8) includes a sealing airbag (801), the inner wall of which is connected to an air inlet pipe (802), and a sealing cap (803) is threadedly connected to the end of the air inlet pipe (802) away from the sealing airbag (801).

2. The internal and external plug-in leak-proof pipe fitting as described in claim 1, characterized in that: The sealing airbag (801) is located inside the mounting groove (7), the air inlet pipe (802) is located inside the mounting groove (7), and the end of the air inlet pipe (802) away from the sealing airbag (801) extends to the outside of the limiting ring plate (4).

3. The internal and external plug-in leak-proof pipe fitting as described in claim 1, characterized in that: The surface of the positioning plate (5) is inserted into the inner wall of the positioning groove (2).

4. The internal and external plug-in leak-proof pipe fitting as described in claim 1, characterized in that: A sealing gasket (9) is fixedly connected to the inner wall of the limiting ring plate (4).

5. The internal and external plug-in leak-proof pipe fitting as described in claim 1, characterized in that: The surface of the pipe (1) is slidably connected with a fixing collar (10).

6. The internal and external plug-in type leak-proof pipe fitting as described in claim 5, characterized in that: One end of the fixing collar (10) is fixedly connected to an inclined plate (11).

7. The internal and external plug-in leak-proof pipe fitting as described in claim 6, characterized in that: One end of the inclined insert (11) extends into the interior of the limiting ring plate (4) and contacts the surface of the sealing gasket (9).

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