Sealing device for water supply pipeline joint

Abstract

The utility model discloses a water supply pipeline joint sealing device, the structure mainly comprises a first sleeve, two first air bags and two inflation pipelines, the first sleeve comprises a limiting ring table and a sealing circular pipe, and two ends of the sealing circular pipe are provided with first sealing ring grooves, the two first air bags are arranged in the two sealing ring grooves in the two ends of the sealing round pipe correspondingly, then the two first air bags are inflated through the two inflation pipelines correspondingly, the two first air bags abut against the inner wall of the water supply pipeline tightly, and therefore the connection sealing performance between the pipelines is good; due to the fact that the water supply pipelines are in threaded connection with the first sleeve, and the connection between the water supply pipelines is sealed in the mode that the first air bag is inflated, operation is easy and convenient, and consumed manpower and time are small.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline joints, in particular to a sealing device for a water supply pipeline joint. Background Art

[0002] When installing a water supply pipeline, since the distance between each water supply node is long, multiple sections of water supply pipeline are usually connected to each other so that the length of the water supply pipeline is sufficient to meet the needs of each water supply node.

[0003] In the prior art, two sections of water supply pipes are usually connected by pipe clamps or sleeves. When a pipe clamp is used for connection, a sealing gasket needs to be clamped at the connection of the water supply pipe, and then the pipe clamp is sleeved on the outer wall of the water supply pipe, so that the water supply pipe is directly connected and sealed. Therefore, when connecting the pipes, the water supply pipes need to be aligned and straightened to ensure that the sealing gasket is stably clamped between the two sections of the water supply pipes. In addition, when connecting the pipe clamps, multiple bolts are required to fix them, which makes the connection of the water supply pipes consume more manpower and time, and makes the connection efficiency of the water supply pipes low.

[0004] When a casing is used to connect a water supply pipe, both ends of the water supply pipe have external threads, and the inner wall of the casing has internal threads. The water supply pipe and the casing are threadedly connected to complete the pipe connection. When performing the threaded connection, waterproof tape is wrapped around both ends of the pipe to ensure the sealing of the connection. However, the following problems still exist:

[0005] 1. When the water supply pipe and the casing are threaded together, the waterproof tape will be subjected to greater friction between the water supply pipe and the casing, causing damage to the waterproof tape and thus reducing the sealing effect.

[0006] 2. The wrapping of waterproof tape cannot be quantified, so it may result in more or less wrapping of waterproof tape. When there is more waterproof tape, the water supply pipe cannot be connected to the casing. When there is less waterproof tape, the sealing effect is low.

[0007] Therefore, there is an urgent need for a water supply pipe joint sealing device that consumes less manpower and time when connecting water supply pipes and has a better sealing effect. Utility Model Content

[0008] The purpose of the utility model is to provide a water supply pipe joint sealing device for solving the technical problems of high labor and time consumption and low sealing performance when connecting water supply pipes.

[0009] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0010] A water supply pipe joint sealing device, used for connecting a water supply pipe with an external thread, comprising:

[0011] The first sleeve has inner threads on the inner walls at both ends that are compatible with the outer threads of the water supply pipe. The inner wall of the first sleeve is provided with a limiting ring and a sealing circular tube. The limiting ring is continuously arranged along the circumference of the first sleeve. The sealing circular tube is arranged at the end of the limiting ring away from the inner wall of the first sleeve. The outer walls of both ends of the sealing circular tube are provided with first sealing ring grooves on the circumference. When the water supply pipe is inserted into the first sleeve, one end of the water supply pipe fits with the side of the limiting ring, and the inner wall of the water supply pipe fits with the outer wall of the sealing circular tube; two first air bags are respectively arranged in the two first sealing ring grooves; and two inflation pipes both pass through the pipe wall of the first sleeve, the limiting ring and the side wall of the first sealing ring groove of the sealing circular tube, and one end of the two inflation pipes is respectively connected with the first air bags, and the other end of the two inflation pipes is arranged on the outer wall of the first sleeve.

[0012] In some embodiments, two ends of the first sleeve are symmetrical relative to the limiting ring platform, and two ends of the sealing ring platform are symmetrical relative to the limiting ring platform.

[0013] In some embodiments, the device further includes two first switch valves, one end of each of the two first switch valves is inserted into the wall of the first sleeve, and the two first switch valves are respectively connected to the two inflation pipes.

[0014] In some embodiments, the device further comprises a three-way valve, and the top ends of the two first switch valves are respectively connected to the valve ports at both ends of the three-way valve.

[0015] In some embodiments, a first sealing member is provided at the connection between the two first switch valves and the valve port of the three-way valve.

[0016] In some embodiments, a sealing gasket is provided on the side where the limiting ring contacts the pipe.

[0017] In some embodiments, the sealing gasket is made of rubber.

[0018] In some embodiments, a second sleeve is provided on each end face of the first sleeve, the inner wall of the second sleeve is adapted to the outer wall of the water supply pipe, the second sleeve is provided with a second sealing ring groove, and a second air bag is provided in the second sealing ring groove.

[0019] In some embodiments, the device also includes a second switching valve, a second seal and an air intake pipe. The second seal is arranged on the outer wall surface of the second sleeve, the second switching valve is arranged inside the side wall of the second sleeve, one end of the second switching valve is connected to the second airbag, and one end of the air intake pipe passes through the second seal and is connected to the second switching valve.

[0020] Compared with the prior art, the advantages of the present invention are:

[0021] In the present invention, by respectively arranging the two first air bags in the two sealing ring grooves at both ends of the sealed circular tube, and then respectively inflating the two first air bags through the two inflation pipes, the two first air bags are made to tightly abut against the inner wall of the water supply pipe, thereby making the connection between the pipes more sealed. At the same time, since the water supply pipe and the first sleeve are connected by threads, and the connection between the water supply pipes is sealed by inflating the first air bags, the operation is relatively simple, thereby consuming less manpower and time. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 This is a front cross-sectional schematic diagram of a water supply pipe joint sealing device according to an embodiment of the present application;

[0024] Figure 2 This is a top cross-sectional schematic diagram of a water supply pipe joint sealing device according to an embodiment of the present application;

[0025] Figure 3 This is a front view schematic diagram of a water supply pipe joint sealing device according to an embodiment of the present application;

[0026] Figure 4 This is a schematic top view of a water supply pipe joint sealing device according to an embodiment of the present application;

[0027] Figure 5 This is a side view schematic diagram of a water supply pipe joint sealing device according to an embodiment of the present application;

[0028] Figure 6 For the embodiment of this application Figure 1 An enlarged schematic diagram of the mark A in FIG;

[0029] Figure 7 For the embodiment of this application Figure 1 An enlarged schematic diagram of the marker B in FIG.

[0030] Figure 8 For the embodiment of this application Figure 1 An enlarged schematic diagram of the mark C in FIG;

[0031] Reference numerals:

[0032] 100-water supply pipeline,

[0033] 200-first sleeve, 210-limiting ring platform, 220-sealing round tube, 221-first sealing ring groove, 222-rubber sealing gasket, 230-sealing pad,

[0034] 300-first airbag,

[0035] 400-Inflatable pipe,

[0036] 500-first switch valve,

[0037] 600-three-way valve,

[0038] 700-first sealing member, 710-first sealing plate, 720-first rubber gasket,

[0039] 800-second sleeve, 810-second sealing ring groove,

[0040] 900-second airbag,

[0041] 1000-second switch valve,

[0042] 2000-second sealing member, 2100-second sealing plate, 2200-second rubber gasket,

[0043] 3000-Intake duct. DETAILED DESCRIPTION

[0044] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0045] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0046] In the description of the present invention, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the utility model product is usually placed when in use. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0047] In addition, the terms "first", "second", "third", etc., if used, are merely used to distinguish and describe, and should not be understood as indicating or implying relative importance.

[0048] Furthermore, the use of terms such as "horizontal," "vertical," and "overhanging" does not necessarily imply that the component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0049] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0050] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention can be combined with each other.

[0051] Example 1

[0052] It should be understood that when connecting pipes, pipe clamps or sleeves are usually used to connect two sections of water supply pipes.

[0053] Among them, when using a pipe clamp as a joint for connection, it is necessary to align the water supply pipe and straighten the water supply pipe to ensure that the sealing gasket is stably clamped between the two sections of the water supply pipe. In addition, the pipe clamp needs to be fixed with multiple bolts when connecting, which makes the connection of the water supply pipe consume more manpower and time, resulting in low connection efficiency of the water supply pipe.

[0054] When using a sleeve for connection, waterproof tape is usually wrapped around the outer walls of both ends of the pipe to ensure the sealing of the connection. However, the waterproof tape is subjected to greater friction when the water supply pipe and the sleeve are threaded together, which may cause damage to the waterproof tape and reduce the sealing effect. In addition, the wrapping of the waterproof tape cannot be quantified, so the waterproof tape may be wrapped thicker or thinner. When the waterproof tape is thicker, the water supply pipe cannot be connected to the sleeve, and when the waterproof tape is thinner, the sealing effect is lower.

[0055] Therefore, in order to improve the above problems, this embodiment provides a water supply pipe joint sealing device, such as Figure 1 and Figure 2As shown, it mainly includes a first sleeve 200, two first air bags 300 and two inflation pipes 400. This device is mainly used to seal and connect the water supply pipe 100, and ensures that the connection of the water supply pipe 100 consumes less manpower and time.

[0056] Among them, the first sleeve 200 is adapted to the shape of the water supply pipe 100, the inner diameter of the first sleeve 200 is adapted to the outer wall diameter of the water supply pipe 100, and the inner walls at both ends of the first sleeve 200 are provided with internal threads, and the outer walls at both ends of the water supply pipe 100 are provided with external threads, thereby ensuring that the water supply pipe 100 and the first sleeve 200 are connected by threads.

[0057] In this embodiment, a limiting ring 210 and a sealing circular tube 220 are provided on the inner wall of the first sleeve 200. Specifically, the inner wall of the first sleeve 200 extends toward the center of the inner wall of the first sleeve 200 to form a limiting boss. The limiting boss is in the shape of a cylinder. The limiting boss has a circular through hole, and the through hole of the limiting boss is coaxially arranged with the limiting boss and the first sleeve 200. When the water supply pipe 100 is inserted into the first sleeve 200, the end face of one end of the water supply pipe 100 abuts against the side of the limiting boss, thereby determining the position of the water supply pipe 100 inserted into the first sleeve 200. At the same time, the water supply pipe 100 abuts against the limiting boss, so that the connection sealing of the two sections of the water supply pipe 100 is better.

[0058] The two ends of the first sleeve 200 are symmetrical with respect to the limiting boss.

[0059] In this embodiment, the sealing circular tube 220 is arranged at the end of the limiting boss away from the inner wall of the first sleeve 200. Specifically, the shape of the sealing circular tube 220 is consistent with the limiting boss, and the diameter of the outer wall of the sealing circular tube 220 is adapted to the diameter of the inner wall of the limiting boss. The first sleeve 200, the limiting boss and the sealing circular tube 220 are coaxially arranged, and the two ends of the sealing circular tube 220 are symmetrical relative to the limiting boss.

[0060] In this embodiment, when the water supply pipe 100 is inserted into the first sleeve 200, the inner wall of one end of the water supply pipe 100 fits against the outer wall of the sealing circular tube 220, so that the sealing circular tube 220 supports the water supply pipe 100, thereby stabilizing the position of the water supply pipe 100 and further stabilizing the connection of the water supply pipe 100.

[0061] In a more complete solution, first sealing ring grooves 221 are provided on the circumference of the outer walls of both ends of the sealing circular tube 220. Specifically, the notch of the first sealing ring groove 221 faces the inner wall of the first sleeve 200, and the two first airbags 300 are respectively arranged in the first sealing ring grooves 221, wherein the first airbags 300 adopt a circular structure.

[0062] The first airbag 300 may be made of rubber material.

[0063] In this embodiment, the two inflation pipes 400 are respectively connected to the two first airbags 300. Specifically, one end of the two inflation pipes 400 passes through the tube wall of the first sleeve 200, the limiting ring 210, the sealing circular tube 220 and the side wall of the first sealing buffer, and are respectively connected to the two first airbags 300, wherein the two inflation pipes 400 are symmetrically arranged relative to the center of the first sleeve 200.

[0064] Among them, the other end of the inflation pipe 400 is arranged in the pipe wall of the first sleeve 200, and a first switch valve 500 is provided at the top of the inflation pipe 400. Specifically, one end of the first switch valve 500 passes through the pipe wall of the first sleeve 200 and is connected with the other end of the inflation pipe 400. The other end of the first switch valve 500 is arranged on the side of the outer wall of the first sleeve 200, and the two first switch valves 500 are connected through a three-way valve 600, wherein the two valve ports of the three-way valve 600 are respectively connected to the two first switch valves 500, and the air inlet valve port of the three-way valve 600 is arranged in the middle of the two valve ports respectively connected to the first switch valve 500.

[0065] Among them, the connection between the two first switch valves 500 and the three-way valve 600 is provided with a first sealing member 700, thereby ensuring the stability of the connection between the first switch valve 500 and the three-way valve 600 while also ensuring good sealing between the first switch valve 500 and the three-way valve 600.

[0066] Among them, the first sealing member 700 includes a first sealing plate 710 and a first rubber gasket 720. The connection between the two first switch valves 500 and the three-way valve 600 is arranged in the first sealing plate 710, and the first rubber gasket 720 is arranged outside the connection between the two first switch valves 500 and the three-way valve 600, so that the sealing between the two first switch valves 500 and the three-way valve 600 is better.

[0067] Among them, when the water supply pipe 100 is inserted into the first sleeve 200, the inner wall of the first sleeve 200 fits against the outer wall of the water supply pipe 100, and the inner wall of the water supply pipe 100 is against the outer walls of the two ends of the sealing circular tube 220. At the same time, the two first switch valves 500 are opened, and the two first air bags 300 are inflated respectively through the three-way valve 600 and the two first switch valves 500, so that the surface of the first air bag 300 is tightly against the inner wall of the water supply pipe 100. Then, after the inflation of the first air bag 300 is completed, the two first switch valves 500 on the pipe wall are sufficient, so that the sealing of the two sections of the water supply pipe 100 is better after connection. At the same time, the water supply pipe 100 only needs to be inserted into the first sleeve 200 for threaded connection, and then the first air bag 300 is inflated, so that the sealing connection of the water supply pipe 100 is relatively simple, and does not require the assistance of multiple people, so it consumes less manpower and time.

[0068] The opening and closing sequence of the two first switch valves 500 can be determined according to on-site requirements, and the inflation time can be set to ensure that the first airbag 300 is fully inflated.

[0069] Example 2

[0070] According to the sealing device described in the above embodiment, in order to further improve the sealing effect after the water supply pipe 100 is connected, in this embodiment, Figures 1-8 As shown, rubber sealing gaskets 222 are provided at the top ends of the outer walls of both ends of the sealing circular tube 220 , wherein the end faces of the rubber sealing gaskets 222 are in close contact with the water supply pipe 100 .

[0071] Specifically, the diameter of the outer wall of the rubber sealing gasket 222 is larger than the diameter of the inner wall of the water supply pipe 100, so that when the water supply pipe 100 is inserted into the first sleeve 200, one end of the water supply pipe 100 squeezes the rubber sealing gasket 222, thereby causing the end of the rubber sealing gasket 222 that abuts against the water supply pipe 100 to bend, so that the bent end of the rubber sealing gasket 222 is subjected to its own bending stress and always abuts tightly against the water supply pipe 100, thereby improving the connection sealing performance of the water supply pipe 100.

[0072] Among them, a sealing gasket 230 is provided on the side of the limiting ring 210, and the sealing gasket 230 is made of rubber. In this embodiment, when the water supply pipe 100 is inserted into the first sleeve 200, the end face of one end of the water supply pipe 100 is against the sealing gasket 230, so that the sealing effect of the water supply pipe 100 is better when it is connected.

[0073] Example 3

[0074] According to the sealing device described in the above embodiment, in order to make the sealing device have a better sealing effect on the connection of the water supply pipe 100, in this embodiment, as Figures 1-8 As shown, a second sleeve 800 is provided at both ends of the first sleeve 200, wherein the second sleeve 800 adopts a cylindrical structure, and the inner wall of the second sleeve 800 is adapted to the outer wall of the water supply pipe 100, and the side wall of one end of the second sleeve 800 is fitted and connected to the side wall of one end of the first sleeve 200.

[0075] In this embodiment, the second sleeve 800 is provided with a second sealing ring groove 810 , and the notch of the second sealing ring groove 810 faces the outer wall of the water supply pipe 100 .

[0076] Among them, a second airbag 900 is provided in the second tube groove, and a second switch valve 1000 is provided in the side wall of the other end of the second sleeve 800. One end of the second switch valve 1000 is connected to the second airbag 900, and the other end of the second switch valve 1000 is arranged on the side wall surface of the other end of the second sleeve 800. Among them, an intake pipe 3000 is provided at the other end of the second switch valve 1000, and a second sealing member 2000 is provided at the connection between the intake pipe 3000 and the second switch valve 1000. Specifically, the second sealing member 2000 includes a second sealing plate 2100 and a second rubber gasket 2200. The second rubber gasket 2200 is sleeved at the connection between the second switch valve 1000 and the intake pipe 3000. The second sealing plate 2100 is arranged on the side wall surface of the second sleeve 800. The intake pipe 3000 is inserted into the second sealing plate 2100 and is connected to the second switch valve 1000.

[0077] In this embodiment, after the water supply pipe 100 is inserted into the first sleeve 200 and the second sleeve 800, the second switch valve 1000 is opened, and the second airbag 900 is inflated through the air intake pipe 3000 and the second switch valve 1000, so that the second airbag 900 is against the outer wall of the water supply pipe 100, thereby further sealing the pipe.

Claims

1. A water supply pipe joint sealing device for connecting a water supply pipe (100) having an external thread, characterized in that: include: A first sleeve (200) has inner threads on both ends of the inner wall thereof adapted to the outer threads of the water supply pipe (100), a limiting ring platform (210) and a sealing circular tube (220) are provided on the inner wall of the first sleeve (200), the limiting ring platform (210) is continuously arranged along the circumference of the first sleeve (200), the sealing circular tube (220) is arranged at one end of the limiting ring platform (210) away from the inner wall of the first sleeve (200), and first sealing ring grooves (221) are provided on the circumference of the outer walls of both ends of the sealing circular tube (220), when the water supply pipe (100) is inserted into the first sleeve (200), one end of the water supply pipe (100) is in contact with the side of the limiting ring platform (210), and the inner wall of the water supply pipe (100) is in contact with the outer wall of the sealing circular tube (220); Two first airbags (300), respectively disposed in the two first sealing ring grooves (221); and The two inflation pipes (400) both pass through the pipe wall of the first sleeve (200), the limiting ring platform (210) and the side wall of the first sealing ring groove (221) of the sealing circular tube (220), and one end of the two inflation pipes (400) is respectively connected to the first airbag (300), and the other ends of the two inflation pipes (400) are arranged on the outer wall of the first sleeve (200).

2. The water supply pipe joint sealing device according to claim 1, characterized in that: The two ends of the first sleeve (200) are symmetrical relative to the limiting ring platform (210), and the two ends of the sealing circular tube (220) are symmetrical relative to the limiting ring platform (210).

3. The water supply pipe joint sealing device according to claim 1, characterized in that: It also includes two first switch valves (500), one end of each of the two first switch valves (500) is inserted into the wall of the first sleeve (200), and the two first switch valves (500) are respectively connected to the two inflation pipes (400).

4. The water supply pipe joint sealing device according to claim 3, characterized in that: It also includes a three-way valve (600), and the top ends of the two first switch valves (500) are respectively connected to the valve ports at both ends of the three-way valve (600).

5. The water supply pipe joint sealing device according to claim 4, characterized in that: A first sealing member (700) is provided at the connection between the valve ports of the two first switch valves (500) and the three-way valve (600).

6. The water supply pipe joint sealing device according to claim 5, characterized in that: A sealing gasket (230) is provided on the side of the limiting ring platform (210) that contacts the water supply pipe (100).

7. The water supply pipe joint sealing device according to claim 6, characterized in that: The sealing gasket (230) is made of rubber.

8. The water supply pipe joint sealing device according to claim 7, characterized in that: The end surfaces of both ends of the first sleeve (200) are respectively provided with a second sleeve (800), the inner wall of the second sleeve (800) is adapted to the outer wall of the water supply pipe (100), the second sleeve (800) is provided with a second sealing ring groove (810), and a second air bag (900) is provided in the second sealing ring groove (810).

9. The water supply pipe joint sealing device according to claim 8, characterized in that: The invention also includes a second switch valve (1000), a second sealing member (2000) and an air intake pipe (3000), wherein the second sealing member (2000) is arranged on the outer wall surface of the second sleeve (800), the second switch valve (1000) is arranged in the side wall of the second sleeve (800), one end of the second switch valve (1000) is communicated with the second airbag (900), and one end of the air intake pipe (3000) passes through the second sealing member (2000) and is communicated with the second switch valve (1000).

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