Internal thread plug of water pipe

Abstract

The utility model relates to the technical field of pipe fittings, in particular to a water pipe internal thread plug which comprises a plug body, outer lugs extending outwards are arranged on the two sides of the top of the plug body, a cone is arranged in the middle of the plug body, an inner hexagonal groove is formed in the top of the cone body, and external threads are arranged at the bottom of the outer wall of the plug body. The plug is installed on the pipeline connector through the external threads and connected with the inner hexagonal groove through an external wrench, so that the inner hexagonal groove is rotated, the rubber plug extends towards the interior of a pipeline, the rubber plug is connected with the rubber plug, the rubber plug is connected with the rubber plug, the rubber plug is connected with the rubber plug, the rubber plug is connected with the rubber plug, and the rubber plug is connected with the rubber plug. The second step of the rubber plug can abut against a pipeline port, so that the pipeline port is sealed through the rubber plug, the first step can abut against the second step and prevent the second step from deforming backwards, the rubber plug is arranged in the pipeline, and the problem that a conventional rubber gasket is arranged outside and is prone to aging is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe fittings, in particular to a water pipe internal thread plug. Background Art

[0002] A plug, also called a pipe cap, is a pipe fitting that is welded to the end of a pipe or installed on the external thread of the pipe end to cover the pipe. It is used to seal the pipeline and has the same function as a pipe plug.

[0003] The existing internal thread plug is composed of a gasket and a screw. However, when the gasket is squeezed by the screw, the edge of the gasket is easily deformed, and wrinkles appear in the deformed part. Water will seep out from the wrinkled part under pressure. In addition, the gasket is exposed to the air for a long time and is prone to aging. It is also prone to rupture after long-term use. In addition, there are usage scenarios with high safety requirements, and it needs to be fixed with a lead seal. The current plug cannot be directly connected to the lead seal. Therefore, we invented a water pipe internal thread plug. Utility Model Content

[0004] The purpose of the utility model is to provide a water pipe internal thread plug to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A water pipe internal thread plug includes a plug, external ears extending outward are provided on both sides of the top of the plug, a vertebral body is provided in the middle of the plug, a hexagonal groove is provided on the top of the vertebral body, an external thread is provided at the bottom of the outer wall of the plug, a step 1 is provided on the outer side of the bottom of the plug, a positioning head is provided in the middle of the bottom of the plug, a rubber plug is installed on the positioning head, the top of the rubber plug is flush with the step 1, the inner wall of the rubber plug is provided with a slot that cooperates with the positioning head, and a step 2 is provided below the outer wall of the rubber plug.

[0007] In a preferred embodiment of the present invention, a through hole is provided in the middle of the external ear, and the external ear, vertebral body and plug are formed in one piece.

[0008] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention.

[0009] The plug is installed on the pipe interface through the external thread, and the internal hexagonal groove is connected by an external wrench. By rotating the internal hexagonal groove, the rubber plug extends into the inside of the pipe. The second step of the rubber plug can abut the pipe port, thereby realizing the sealing of the rubber plug to the pipe port. The opening of the first step can abut the second step to prevent the second step from deforming backward. The rubber plug is set inside the pipe, which solves the problem of conventional rubber gaskets being set outside and prone to aging.

[0010] The lead seal can be connected to the through hole in the middle of the outer ear, thereby achieving a safety effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0012] Figure 1 It is a three-dimensional plug for internal thread of water pipe Figure 1 ;

[0013] Figure 2 It is a three-dimensional plug for internal thread of water pipe Figure 2 ;

[0014] Figure 3 This is a side view of a water pipe internal thread plug;

[0015] Figure 4 For a kind of water pipe internal thread plug Figure 3 Cross-sectional view in the AA direction;

[0016] Figure 5 This is a top view of a water pipe internal thread plug;

[0017] Figure 6 For a kind of water pipe internal thread plug Figure 5 Cross-sectional view in the BB direction.

[0018] In the figure: plug 1, outer ear 2, through hole 3, cone 4, hexagonal groove 5, external thread 6, step 1 7, positioning head 8, rubber plug 9, slot 10, step 2 11. DETAILED DESCRIPTION

[0019] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0020] Please refer to Figure 1-6A water pipe internal thread plug includes a plug 1. Outer ears 2 extending outward are provided on both sides of the top of the plug 1. The arrangement of the outer ears 2 facilitates the direct screwing of the plug 1 by hand. A cone 4 is provided in the middle of the plug 1. An inner hexagonal groove 5 is provided on the top of the cone 4. The opening of the inner hexagonal groove 5 facilitates the screwing of the plug 1 by an external wrench.

[0021] The bottom of the outer wall of the plug 1 is provided with an external thread 6, a step 1 is provided on the outer side of the bottom of the plug 1, a positioning head 8 is provided in the middle of the bottom of the plug 1, and a rubber plug 9 is installed on the positioning head 8. The top of the rubber plug 9 is flush with the step 1 7 and is pressed against the pipe opening through the step 2 11, thereby achieving the sealing of the pipe opening by the rubber plug 9;

[0022] The inner wall of the rubber plug 9 is provided with a card slot 10 which cooperates with the positioning head 8, and the lower part of the outer wall of the rubber plug 9 is provided with a step 2 11. The rubber plug 9 is connected to the positioning head 8 through the card slot 10, and the top of the rubber plug 9 is flush with the step 1 7. When the rubber plug 9 is pressed against the pipe port, the step 2 11 is deformed and extends backward or outward. The opening of the step 17 can press against the step 2 11, so that the rubber plug 9 can completely block the pipe port.

[0023] A through hole 3 is provided in the middle of the outer ear 2. The outer ear 2, the vertebral body 4 and the plug 1 are formed in one piece. The purpose of providing the through hole 3 is to facilitate the connection of the lead seal.

[0024] The working principle of the utility model is as follows: the plug 1 is installed on the pipe interface through the external thread 6, and the hexagonal groove 5 is connected through an external wrench, so that the hexagonal groove 5 is rotated, and the rubber plug 9 extends to the inside of the pipe. The second step 11 of the rubber plug 9 can abut the pipe port, thereby realizing the sealing of the rubber plug 9 to the pipe port, the opening of the step 1 7 can abut the second step 11 to prevent the second step 11 from deforming backward, and the lead seal can be connected to the outer ear 2 with a through hole 3 in the middle, thereby achieving a safety effect.

[0025] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A water pipe internal thread plug, characterized by: The invention comprises a plug (1), wherein both sides of the top of the plug (1) are provided with external ears (2) extending outward, a vertebra (4) is provided in the middle of the plug (1), a hexagonal groove (5) is provided on the top of the vertebra (4), an external thread (6) is provided on the bottom of the outer wall of the plug (1), a step (7) is provided on the outer side of the bottom of the plug (1), a positioning head (8) is provided in the middle of the bottom of the plug (1), a rubber plug (9) is installed on the positioning head (8), the top of the rubber plug (9) is flush with the step (7), the inner wall of the rubber plug (9) is provided with a slot (10) that is matched with the positioning head (8), and a step (11) is provided below the outer wall of the rubber plug (9).

2. A water pipe internal thread plug according to claim 1, characterized in that: A through hole (3) is provided in the middle of the external ear (2), and the external ear (2), vertebral body (4) and plug (1) are integrally formed.

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