Telescopic leakage-proof pipe fitting

Abstract

The utility model relates to the technical field of leakage-proof pipe fittings, and discloses a telescopic leakage-proof pipe fitting which comprises a leakage-proof outer pipe, a sealing assembly is arranged in the leakage-proof outer pipe, and a connecting assembly is arranged outside the leakage-proof outer pipe. The telescopic inner pipe is pulled by external force to slide outwards, the inside and the outside of the sealing rubber ring move along the inner wall of the leakage-proof outer pipe to keep close contact, and meanwhile, the telescopic inner pipe drives the leaking stoppage rubber ring to enter a pipeline needing to be communicated, so that equipment is more flexible and can adapt to water inlet pipes of water outlet pipes at different intervals; therefore, smoothness of liquid circulation between the water outlet pipe and the water inlet pipe is guaranteed, the problem of blockage caused by angles is effectively prevented, a main seal is arranged in the sealing rubber ring and mainly bears pressure generated by circulating liquid, and an auxiliary seal is arranged outside the sealing rubber ring and shares pressure and prevents failure of the main seal. Therefore, liquid flowing through the telescopic inner pipe and the leakage-proof outer pipe is prevented from flowing out, and the sealing effect is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of leak-proof pipe fittings, specifically a retractable leak-proof pipe fitting. Background Technology

[0002] Scalable leak-proof fittings are typically designed to provide flexible connections and prevent leaks in piping systems. These fittings are length-adjustable to accommodate different installation spaces while ensuring a tight seal at the connection, thus preventing liquid or gas leaks. The most significant feature of scalable fittings is their adjustable length, allowing them to adapt to piping systems of varying lengths or with specific space requirements. This is extremely useful in situations with limited installation space or significant variations in pipe distance.

[0003] In existing technologies, most pipe fittings connecting two pipes involve sliding the inlet pipe inside the leak-proof fitting. The leak-proof fitting then uses a sealing rubber sleeve at the bottom to connect the inlet and outlet pipes. The expansion and deformability of the sealing rubber sleeve allow it to completely fit inside the outlet pipe, thus guiding the water flow from the inlet to the outlet. However, such products often lack flexibility and adjustability, resulting in the inlet or outlet pipe being at a non-straight bend after installation. This affects drainage efficiency and increases the probability of water leakage after accumulation. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] The purpose of this utility model is to provide a retractable leak-proof pipe fitting to solve the problem mentioned in the background art that the installed water outlet or water inlet pipe is at a non-straight bending angle, which affects its drainage effect and the probability of leakage after water accumulation.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A retractable leak-proof pipe fitting includes a leak-proof outer pipe, wherein a sealing component is provided inside the leak-proof outer pipe and a connecting component is provided outside the leak-proof outer pipe.

[0009] The sealing assembly includes a telescopic inner tube, the outer wall of which is slidably connected to the inner wall of the leak-proof outer tube, a sealing ring fixedly connected to the bottom of the telescopic inner tube, the inner and outer walls of the sealing ring being slidably connected to the inner wall of the leak-proof outer tube, the outer surface of the telescopic inner tube being fixedly connected to the outer wall of the sealing ring, the outer wall of the sealing ring being slidably connected to the inner wall of the leak-proof outer tube, and a leak-stopping rubber ring fixedly connected to the top of the telescopic inner tube.

[0010] As a further improvement to the above solution, two telescopic inner tubes are provided, and the two telescopic inner tubes are symmetrically arranged at the center of the outer tube to prevent leakage. Two sealing rings are provided inside the outer tube, and the two sealing rings are symmetrically arranged at the center of the outer tube to prevent leakage.

[0011] As a further improvement to the above solution, two leak-stopping rubber rings are provided, and the two leak-stopping rubber rings are symmetrically arranged at the center of the outer pipe to prevent leakage.

[0012] The above technical solution involves using external force to pull the telescopic inner tube outward, causing the inner and outer edges of the sealing rubber ring to move and maintain close contact with the inner wall of the leak-proof outer tube. At the same time, the telescopic inner tube drives the leak-proof rubber ring into the pipeline that needs to be connected.

[0013] As a further improvement to the above solution, the connecting assembly includes a pipe fitting, the inner wall of which contacts the outer wall of the leak-sealing rubber ring.

[0014] As a further improvement to the above solution, a connecting nut is slidably connected to the outer wall of the leak-proof outer pipe, and the connecting nut is threadedly connected to the outer wall of the pipe fitting.

[0015] As a further improvement to the above solution, a sealing ring is fixedly connected to the inner wall of the connecting nut, the sealing ring is slidably connected to the surface of the leak-proof outer tube, and the top of the sealing ring is in contact with the bottom of the tube.

[0016] As a further improvement to the above solution, two pipe fittings are provided, and the two pipe fittings are symmetrically arranged at the center of the outer pipe to prevent leakage. Two connecting nuts are provided, and the two connecting nuts are symmetrically arranged at the center of the outer pipe to prevent leakage.

[0017] With the above technical solution, before the telescopic inner tube and the leak-stopping rubber ring extend into the pipe fitting, threads are opened on the surface of the pipe fitting by a thread cutting device. After the telescopic inner tube and the pipe fitting extend into the pipe fitting, the connecting nuts, which are rotated and symmetrically arranged, slide along the outer wall of the leak-proof outer tube and engage with the threads on the outer wall of the pipe fitting.

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

[0019] 1. This utility model utilizes external force to pull the telescopic inner tube outward, causing the inner and outer edges of the sealing ring and the leak-proof outer tube to move and maintain tight contact. Simultaneously, the telescopic inner tube drives the leak-proof rubber ring into the pipeline that needs to be connected, making the equipment more flexible and adaptable to inlet pipes with different spacing between outlet pipes. This ensures smooth liquid flow between the outlet and inlet pipes, effectively preventing blockages caused by angles. The inner sealing ring is the primary seal, mainly bearing the pressure generated by the flowing liquid, while the outer sealing ring is the auxiliary seal, sharing the pressure and preventing the primary seal from failing. This prevents the liquid flowing through the telescopic inner tube and the leak-proof outer tube from leaking out, ensuring its sealing effect.

[0020] 2. This utility model involves creating threads on the surface of the pipe fitting before the telescopic inner tube and the leak-stopping rubber ring extend into the fitting. After the telescopic inner tube and the fitting extend into the fitting, a symmetrically arranged connecting nut slides along the outer wall of the leak-proof outer tube and engages with the thread on the outer wall of the fitting. During the tightening of the connecting nut, the internal sealing rubber ring is compressed, causing it to adhere tightly to the surface of the leak-proof outer tube, forming a second seal. Simultaneously, the top of the sealing rubber ring makes close contact with the bottom of the fitting, blocking potential leakage paths. This ensures rapid pipe connection while achieving high-pressure leak prevention and vibration-resistant loosening, improving the stability and sealing effect of the equipment. 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 diagram of the sealing assembly structure of this utility model;

[0023] Figure 3 This is a schematic cross-sectional view of the sealing assembly of this utility model;

[0024] Figure 4 This utility model Figure 3 Enlarged structural diagram of section A in the middle;

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

[0026] Figure 6 This utility model Figure 5 Enlarged structural diagram of section B.

[0027] Explanation of key symbols:

[0028] 1. Leak-proof outer pipe; 2. Sealing assembly; 201. Telescopic inner pipe; 202. Inner sealing ring; 203. Outer sealing ring; 204. Leak-stopping rubber ring; 3. Connecting assembly; 301. Pipe fitting; 302. Sealing ring; 303. Connecting nut. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0030] Please see Figure 1 - Figure 6 This utility model provides a technical solution for a retractable leak-proof pipe fitting.

[0031] A retractable leak-proof pipe fitting, characterized in that it includes a leak-proof outer pipe 1, a sealing component 2 is provided inside the leak-proof outer pipe 1, and a connecting component 3 is provided outside the leak-proof outer pipe 1.

[0032] The sealing assembly 2 includes a telescopic inner tube 201, the outer wall of which is slidably connected to the inner wall of the leak-proof outer tube 1, a sealing ring inner 202 fixedly connected to the bottom of the telescopic inner tube 201, the outer wall of the sealing ring inner 202 slidably connected to the inner wall of the leak-proof outer tube 1, a sealing ring outer 203 fixedly connected to the surface of the telescopic inner tube 201, the outer wall of the sealing ring outer 203 slidably connected to the inner wall of the leak-proof outer tube 1, and a leak-stopping rubber ring 204 fixedly connected to the top of the telescopic inner tube 201.

[0033] There are two telescopic inner tubes 201, which are symmetrically arranged to prevent leakage from the outer tube 1. There are also two sealing rings 202, which are symmetrically arranged to prevent leakage from the outer tube 1.

[0034] Two leak-stopping rubber rings 204 are provided, and the two leak-stopping rubber rings 204 are symmetrically arranged at the center of the outer pipe 1 to prevent leakage.

[0035] The connecting component 3 includes a pipe fitting 301, the inner wall of which contacts the outer wall of the leak-sealing rubber ring 204.

[0036] The outer wall of the leak-proof outer pipe 1 is slidably connected with a connecting nut 303, which is threaded onto the outer wall of the pipe fitting 301.

[0037] A sealing ring 302 is fixedly connected to the inner wall of the connecting nut 303. The sealing ring 302 is slidably connected to the surface of the leak-proof outer tube 1, and the top of the sealing ring 302 is in contact with the bottom of the tube fitting 301.

[0038] There are two pipe fittings 301, which are symmetrically arranged to prevent leakage from the outer pipe 1. There are also two connecting nuts 303, which are symmetrically arranged to prevent leakage from the outer pipe 1.

[0039] Working principle: Before the telescopic inner tube 201 and the sealing rubber ring 204 extend into the pipe fitting 301, threads are cut on the surface of the pipe fitting 301 using a thread cutting device. Then, by external force, the telescopic inner tube 201 slides outward, and the inner 202 and outer 203 of the sealing rubber ring move along the inner wall of the leak-proof outer tube 1, maintaining tight contact. At the same time, the telescopic inner tube 201 drives the sealing rubber ring 204 into the pipe fitting 301, making the equipment more flexible and adaptable to inlet pipes with different spacing between outlet pipes. This ensures the smooth flow of liquid between the outlet and inlet pipes and effectively prevents blockage caused by angle. The inner 202 of the sealing rubber ring is the main seal, mainly bearing the pressure generated by the flowing liquid, while the outer 203 of the sealing rubber ring is the auxiliary seal, sharing the pressure. To prevent the main seal from failing, thus preventing the outflow of liquid flowing through the telescopic inner tube 201 and the leak-proof outer tube 1, ensuring its sealing effect, after the telescopic inner tube 201 and the fitting 301 extend into the interior of the fitting 301, the connecting nut 303, which is symmetrically arranged by rotation, slides along the outer wall of the leak-proof outer tube 1 and engages with the thread on the outer wall of the fitting 301. During the tightening of the connecting nut 303, the sealing ring 302 inside is squeezed, so that the sealing ring 302 is tightly attached to the surface of the leak-proof outer tube 1, forming a second seal. At the same time, the top of the sealing ring 302 is in close contact with the bottom of the fitting 301, blocking potential leakage paths. While ensuring rapid connection of pipelines, high-pressure leak prevention and vibration-resistant loosening are achieved, improving the stability and sealing effect of the equipment.

[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 retractable leak-proof pipe fitting, characterized in that, It includes a leak-proof outer tube (1), a sealing component (2) is provided inside the leak-proof outer tube (1), and a connecting component (3) is provided outside the leak-proof outer tube (1). The sealing assembly (2) includes a telescopic inner tube (201), the outer wall of which is slidably connected to the inner wall of the leak-proof outer tube (1), a sealing ring inner (202) fixedly connected to the bottom of the telescopic inner tube (201), the outer wall of the sealing ring inner (202) slidably connected to the inner wall of the leak-proof outer tube (1), a sealing ring outer (203) fixedly connected to the surface of the telescopic inner tube (201), the outer wall of the sealing ring outer (203) slidably connected to the inner wall of the leak-proof outer tube (1), and a leak-stopping rubber ring (204) fixedly connected to the top of the telescopic inner tube (201).

2. The retractable leak-proof pipe fitting as described in claim 1, characterized in that: Two telescopic inner tubes (201) are provided, and the two telescopic inner tubes (201) are arranged symmetrically at the center to prevent leakage of the outer tube (1). Two sealing rubber rings (202) are provided, and the two sealing rubber rings (202) are arranged symmetrically at the center to prevent leakage of the outer tube (1).

3. The retractable leak-proof pipe fitting as described in claim 1, characterized in that: Two of the leak-stopping rubber rings (204) are provided, and the two leak-stopping rubber rings (204) are arranged symmetrically at the center of the outer pipe (1) to prevent leakage.

4. The retractable leak-proof pipe fitting as described in claim 1, characterized in that: The connecting assembly (3) includes a pipe fitting (301), the inner wall of which is in contact with the outer wall of the leak-sealing rubber ring (204).

5. A retractable leak-proof pipe fitting as described in claim 4, characterized in that: The outer wall of the leak-proof outer tube (1) is slidably connected with a connecting nut (303), and the connecting nut (303) is threadedly connected to the outer wall of the pipe fitting (301).

6. A retractable leak-proof pipe fitting as described in claim 5, characterized in that: A sealing ring (302) is fixedly connected to the inner wall of the connecting nut (303). The sealing ring (302) is slidably connected to the surface of the leak-proof outer tube (1). The top of the sealing ring (302) is in contact with the bottom of the pipe fitting (301).

7. A retractable leak-proof pipe fitting as described in claim 6, characterized in that: Two pipe fittings (301) are provided, and the two pipe fittings (301) are arranged symmetrically at the center to prevent leakage of the outer pipe (1). Two connecting nuts (303) are provided, and the two connecting nuts (303) are arranged symmetrically at the center to prevent leakage of the outer pipe (1).

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