Water-blocking-proof pipe fitting

Abstract

The utility model discloses a waterproof plugging pipe fitting, which relates to the field of plugging pipe fittings, and comprises a plug main body, one end part of the plug main body is a mounting port used for connecting the plug main body with an external threaded pipeline, the other end part of the plug main body is a closed end, a mounting notch is arranged in the mounting port, and the waterproof plugging pipe fitting further comprises a limiting component. The second annular block is twisted to drive the installation ring sleeve to rotate, threads reserved on the inner ring and the outer ring of the installation ring sleeve are connected with a thread groove in the outer wall of the installation notch in the installation port and a thread groove in the inner ring of the sealing rubber ring sleeve in a thread matching mode respectively, and the installation ring sleeve and the installation port can be taken down when the installation ring sleeve is rotated. And at the moment, no part is arranged at the lower position of the mounting notch, so that the sealing rubber ring sleeve can be conveniently taken down for replacement, the sealing performance of connection between the plug main body and the external threaded pipeline can be ensured, water leakage during connection between the plug main body and the external threaded pipeline is avoided, and a new sealing rubber ring sleeve can be conveniently and quickly replaced and mounted.

Description

Technical Field

[0001] The utility model relates to the field of pipe blocking fittings, in particular to a waterproof pipe blocking fitting. Background Art

[0002] The plug is used to seal the pipeline system. It is used to close one side of the pipeline to prevent the medium from leaking out or foreign impurities from entering the pipeline. It can effectively isolate the environment inside and outside the pipeline, thereby ensuring the safe and stable operation of the pipeline system.

[0003] The existing plugs still have the following problems when connected to pipelines: most of the existing plugs and pipelines are installed by threaded connection. In order to ensure the sealing of the connection between the plug and the pipeline, a sealing rubber ring is usually installed inside the plug to avoid water leakage at the connection between the plug and the pipeline. However, the service life of the sealing rubber ring is limited. The sealing effect of the sealing rubber ring is weakened after being used for a long time. This requires replacing the entire plug to ensure the subsequent sealing of the connection between the plug and the pipeline, resulting in a large overall replacement cost.

[0004] Therefore, it is necessary to invent a waterproof pipe plugging member to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a waterproof pipe plugging fitting to solve the problem that the existing plugs and pipes proposed in the above background technology are mostly installed by threaded connection. In order to ensure the sealing of the connection between the plug and the pipe, a sealing rubber ring is usually installed inside the plug to avoid water leakage at the connection between the plug and the pipe. However, the service life of the sealing rubber ring is limited. The sealing effect of the sealing rubber ring is weakened after being used for a long time. This requires replacing the entire plug to ensure the subsequent sealing of the connection between the plug and the pipe, resulting in a high overall replacement cost.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a waterproof pipe plugging fitting, comprising a plug body, one end of the plug body is a mounting port, which is used to connect the plug body with an external threaded pipe, the other end of the plug body is a closed end, a mounting notch is arranged inside the mounting port, a sealing rubber ring sleeve is movably sleeved on the inner wall of the mounting notch, the outer wall of the sealing rubber ring sleeve is fitted and installed with the inner wall of the external threaded pipe, the lower end of the mounting port is threadedly connected to the mounting ring sleeve, the outer ring of the mounting ring sleeve is threadedly connected to the inner wall of the sealing rubber ring sleeve, the top of the mounting ring sleeve is fixedly connected with an annular block 1, the annular block 1 is rotatably connected to the annular groove reserved inside the sealing rubber ring sleeve, the lower end of the mounting ring sleeve is fixedly connected with an annular block 2, and also includes:

[0007] A limiting assembly, wherein the top of the sealing rubber ring is fixedly connected to a limiting rod, the limiting rod matches the limiting groove, the limiting groove is preset at the top of the installation notch, and the limiting groove is located inside the installation port block in the plug body, ensuring that the sealing rubber ring and the installation notch are not misaligned during installation.

[0008] Preferably, the installation port is thread-matchedly connected to an external threaded pipe.

[0009] Preferably, the installation notch is annular, the inner wall of the installation notch is smooth, and a thread groove is provided on the outer ring near the lower position of the installation notch, and the thread groove matches the inner ring thread of the installation ring sleeve.

[0010] Preferably, the inner wall of the sealing rubber ring is installed in a fit with the inner wall of the installation notch, and the outer wall of the sealing rubber ring protrudes from the installation notch with a thickness of 1MM. The sealing rubber ring is used to ensure that there is no water leakage during connection between the external threaded pipe and the inner wall of the installation port inside the plug body.

[0011] Preferably, a notch is provided at the position where the bottom of the sealing rubber ring sleeve is threadedly connected to the mounting ring sleeve, the notch is communicated with the annular groove, and the notch is threadedly connected to the outer thread of the mounting ring sleeve. Through the threaded connection between the mounting ring sleeve and the mounting notch and the sealing rubber ring sleeve, the sealing rubber ring sleeve sleeved on the outer wall of the mounting notch is doubly guaranteed to be firmly installed, thereby preventing the sealing rubber ring sleeve from falling off from the mounting notch and affecting the use of the plug main body.

[0012] Preferably, there are two limit rods, and the two limit rods are symmetrically arranged with reference to the central axis of the sealing rubber ring as the symmetry axis. The outer wall of the limit rod is a smooth surface, and the outer wall of the limit rod is in contact with and slidably connected to the inner wall of the limit groove. The limit rod and the limit groove ensure that the sealing rubber ring and the installation notch will not rotate, thereby avoiding the rotational friction between the sealing rubber ring and the installation notch affecting the service life of the sealing rubber ring.

[0013] Preferably, the lower end of the limiting groove is open, and the limiting groove is communicated with the installation notch.

[0014] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0015] The utility model drives the rotation of the installation ring sleeve fixedly connected to the top of the second annular block by twisting the second annular block, and the reserved threads on the inner and outer rings of the installation ring sleeve are respectively threadedly matched with the thread grooves on the outer wall of the installation notch in the installation port and the thread grooves on the inner ring of the sealing rubber ring sleeve. The installation ring sleeve and the installation port can be removed when the installation ring sleeve is rotated. At this time, no parts are provided at the lower position of the installation notch, which makes it convenient to remove the sealing rubber ring sleeve and replace it with a new one, thereby ensuring the sealing performance of the connection between the plug body and the external threaded pipe, avoiding water leakage when the plug body is connected to the external threaded pipe, and it is convenient and quick to replace and install a new sealing rubber ring sleeve, and while ensuring the sealing performance of the connection, the service life of the entire plug body can be extended. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0018] Figure 2 This is an exploded view of the overall structure of the utility model from the first perspective;

[0019] Figure 3 It is an exploded view of the overall structure of the utility model from a second perspective;

[0020] Figure 4 It is an exploded view of the sealing rubber ring (partially cut away) and the mounting ring of the utility model.

[0021] Description of reference numerals:

[0022] 1. Plug body; 2. Installation port; 3. Installation notch; 4. Sealing rubber ring; 41. Notch; 5. Installation ring; 6. Limiting assembly; 61. Limiting rod; 62. Limiting groove; 7. Ring block 1; 8. Ring groove; 9. Ring block 2. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0024] The utility model provides Figure 1-4The waterproof pipe plugging device shown in the figure comprises a plug body 1, one end of the plug body 1 is a mounting port 2, which is used to connect the plug body 1 with an external threaded pipe, and the other end of the plug body 1 is a closed end. An mounting notch 3 is arranged inside the mounting port 2, and a sealing rubber ring 4 is movably sleeved on the inner wall of the mounting notch 3. The outer wall of the sealing rubber ring 4 is fitted and installed with the inner wall of the external threaded pipe, and the lower end of the mounting port 2 is threadedly connected with a mounting ring 5, and the outer ring of the mounting ring 5 is threadedly connected with the inner wall of the sealing rubber ring 4. A ring block 7 is fixedly connected to the top of the mounting ring 5, and the ring block 7 is rotatably connected to the ring groove 8 reserved inside the sealing rubber ring 4, and a ring block 2 9 is fixedly connected to the lower end of the mounting ring 5. When the mounting ring 5 is rotated to make the mounting ring 5 move toward the inside of the notch 41, the ring block 7 synchronously moves to the inside of the ring groove 8 reserved inside the sealing rubber ring 4 and then presses against the sealing rubber ring 4, so as to ensure that the sealing rubber ring 4 will not fall off from the mounting notch 3, and also comprises:

[0025] The limiting assembly 6, the top of the sealing rubber ring 4 is fixedly connected with a limiting rod 61, the limiting rod 61 matches the limiting groove 62, the limiting groove 62 is preset at the top of the installation notch 3, and the limiting groove 62 is located inside the installation port 2 body block in the plug body 1, ensuring that the sealing rubber ring 4 and the installation notch 3 are not misaligned during installation.

[0026] The installation port 2 is thread-matchedly connected with an external threaded pipe.

[0027] The installation notch 3 is annular, and the inner wall of the installation notch 3 is a smooth surface. A thread groove is provided on the outer ring near the lower position of the installation notch 3, and the thread groove matches the inner ring thread of the installation ring sleeve 5.

[0028] The inner wall of the sealing rubber ring 4 is fitted with the inner wall of the installation notch 3, and the outer wall of the sealing rubber ring 4 protrudes from the installation notch 3 with a thickness of 1MM. The sealing rubber ring 4 is used to ensure that there will be no water leakage during the connection between the external threaded pipe and the inner wall of the installation port 2 inside the plug body 1.

[0029] A notch 41 is provided at the position where the bottom of the sealing rubber ring sleeve 4 is threadedly connected to the mounting ring sleeve 5, and the notch 41 is communicated with the annular groove 8. The notch 41 is threadedly connected to the outer thread of the mounting ring sleeve 5. Through the threaded connection between the mounting ring sleeve 5 and the mounting notch 3 and the sealing rubber ring sleeve 4, the sealing rubber ring sleeve 4 sleeved on the outer wall of the mounting notch 3 is doubly guaranteed to be firmly installed, thereby preventing the sealing rubber ring sleeve 4 from falling off from the mounting notch 3 and affecting the use of the plug body 1.

[0030] There are two limit rods 61, and the two limit rods 61 are symmetrically arranged with reference to the central axis of the sealing rubber ring 4 as the symmetry axis. The outer wall of the limit rod 61 is smooth, and the outer wall of the limit rod 61 is in contact with and slidably connected to the inner wall of the limit groove 62. The limit rod 61 and the limit groove 62 ensure that the sealing rubber ring 4 and the installation notch 3 will not rotate, thereby avoiding the rotational friction between the sealing rubber ring 4 and the installation notch 3 affecting the service life of the sealing rubber ring 4.

[0031] The lower end of the limiting groove 62 is open, and the limiting groove 62 is communicated with the installation notch 3 .

[0032] Working principle: When using a waterproof pipe plugging fitting, firstly, the threaded connection between the plug body 1 and the external threaded pipe ensures the stability of the connection, and at the same time, the sealing rubber ring 4 is used between the external threaded pipe and the inner wall of the installation port 2 inside the plug body 1 to ensure that there is no water leakage during the connection;

[0033] After the sealing rubber ring 4 has been used for a long time, its sealing effect weakens. At this time, it needs to be replaced. It only needs to be driven by twisting the annular block 29 to drive the rotation of the mounting ring 5 fixedly connected to the top of the annular block 29. Because the inner ring and the outer ring of the mounting ring 5 are both reserved with threads, and the reserved threads of the inner ring and the outer ring of the mounting ring 5 are respectively threadedly matched with the thread grooves on the outer wall of the mounting notch 3 inside the mounting port 2 and the thread grooves reserved in the inner ring of the notch 41 at the lower position of the sealing rubber ring 4. In this way, the mounting ring 5 can be separated from the mounting port 2 when the mounting ring 5 is rotated. At this time, there is no part at the lower position of the mounting notch 3 to block the sealing rubber ring 4 (the sealing rubber ring 4 is elastically sleeved on the outer wall of the mounting notch 3), so it is convenient to remove the sealing rubber ring 4 for replacement, thereby ensuring the sealing of the connection between the plug body 1 and the external threaded pipe, and avoiding water leakage when the plug body 1 is connected to the external threaded pipe;

[0034] When it is necessary to install a new sealing rubber ring 4 at the same time, it is only necessary to put the sealing rubber ring 4 on the outer wall of the installation notch 3, so that the two symmetrical limiting rods 61 fixedly connected at the top of the sealing rubber ring 4 match the limiting groove 62, and then the reserved thread of the outer ring of the installation ring sleeve 5 matches the thread groove of the inner ring of the notch 41 at the bottom of the sealing rubber ring 4, and the annular block 29 is rotated to drive the rotation of the installation ring sleeve 5 fixedly connected to the annular block 29. Subsequently, during the rotation process, the installation ring sleeve 5 rises and moves into the notch 41 at the bottom of the sealing rubber ring 4. At this time, the reserved thread of the inner ring of the installation ring sleeve 5 matches the thread groove of the outer ring at the bottom of the installation notch 3 in time, ensuring that the installation ring sleeve 5 is threadedly connected to the sealing rubber ring 4 and the installation notch 3. At this time, the installation ring sleeve 5 performs a limited installation on the sealing rubber ring 4 to ensure that the sealing rubber ring 4 and the installation notch 3 are connected without falling off, and replacing and installing a new sealing rubber ring 4 is convenient and quick, while ensuring the connection sealing, the service life of the entire plug body 1 can be extended.

[0035] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A waterproof pipe plugging device, comprising a plug body (1), characterized in that: One end of the plug body (1) is a mounting port (2) for connecting the plug body (1) with an external threaded pipe, and the other end of the plug body (1) is a closed end. A mounting notch (3) is provided inside the mounting port (2). A sealing rubber ring (4) is movably sleeved on the inner wall of the mounting notch (3). The outer wall of the sealing rubber ring (4) is fitted and mounted on the inner wall of the external threaded pipe. The lower end of the mounting port (2) is threadedly connected to a mounting ring (5). The outer ring of the mounting ring (5) is threadedly connected to the inner wall of the sealing rubber ring (4). The top of the mounting ring (5) is fixedly connected to an annular block 1 (7). The annular block 1 (7) is rotatably connected to an annular groove (8) reserved inside the sealing rubber ring (4). The lower end of the mounting ring (5) is fixedly connected to an annular block 2 (9). The mounting ring also includes: A limiting assembly (6), wherein the top of the sealing rubber ring (4) is fixedly connected to a limiting rod (61), the limiting rod (61) matches a limiting groove (62), the limiting groove (62) is preset at the top of the installation notch (3), and the limiting groove (62) is located inside the installation port (2) body block in the plug body (1).

2. A waterproof pipe plugging fitting according to claim 1, characterized in that: The installation port (2) is thread-matchedly connected to an external threaded pipe.

3. The waterproof pipe plugging device according to claim 1, characterized in that: The installation notch (3) is annular, the inner wall of the installation notch (3) is smooth, and a thread groove is provided on the outer ring near the lower part of the installation notch (3), and the thread groove matches the inner ring thread of the installation ring sleeve (5).

4. The waterproof pipe plugging member according to claim 1, characterized in that: The inner wall of the sealing rubber ring sleeve (4) is fitted with the inner wall of the installation notch (3), and the outer wall of the sealing rubber ring sleeve (4) protrudes from the installation notch (3) and has a thickness of 1MM.

5. The waterproof pipe plugging device according to claim 1, characterized in that: A notch (41) is provided at the position where the bottom of the sealing rubber ring sleeve (4) is threadedly connected to the mounting ring sleeve (5), the notch (41) is communicated with the annular groove (8), and the notch (41) is threadedly connected to the outer thread of the mounting ring sleeve (5).

6. The waterproof pipe plugging device according to claim 1, characterized in that: The limiting rods (61) are provided in two numbers, and the two limiting rods (61) are symmetrically arranged with reference to the central axis of the sealing rubber ring (4) as the symmetry axis. The outer wall of the limiting rod (61) is a smooth surface, and the outer wall of the limiting rod (61) is in contact with and slidably connected to the inner wall of the limiting groove (62).

7. The waterproof pipe plugging member according to claim 1, characterized in that: The lower end of the limiting groove (62) is open, and the limiting groove (62) is connected to the installation notch (3).

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