Universal pipe plug

Abstract

The present invention discloses a universal pipe plug, which relates to the technical field of accessories for power communication pipelines, and comprises a cover plate, a plug body and a handle. The bottom end of the handle is fixed to the upper cover surface of the cover plate, and the lower cover surface of the cover plate is connected to the upper end of the plug body. The plug body connected to the cover plate and extending along its axial direction is divided into multiple parts by multiple air gaps distributed alternately, and a protrusion is provided on the outer surface of each part. All components of the pipe plug are integrally injection molded, and the bottom surface of the lower end of the plug body is completely open and non-sealed. The lower cover surface of the cover plate, the air gap and the inner side surface of the plug body are surrounded to form a cylindrical hollow structure. When the universal pipe plug of the present invention is installed, after the plug body is inserted into the lumen of the wire tube, it shrinks toward the axis of the lumen due to the existence of the air gap, and can adapt to the shrinkage of the apertures of different wire tubes. When the entire plug body is inserted into the tube, the protrusion rebounds and expands the tube lumen, and at the same time the cover plate shields the end of the wire tube to prevent debris from entering the tube.

Description

Technical Field

[0001] The invention relates to the technical field of accessories for power communication pipelines, and in particular to a universal pipe plug device for different wire pipes that prevents foreign matter from entering the inside of the wire pipe. Background Art

[0002] In the process of laying pre-buried or transporting power line pipes, in order to prevent dust or other debris from entering the wire sheath pipe, tape or discarded newspapers are usually used to seal the pipe opening. This method is not easy to operate and is not environmentally friendly. It also cannot achieve the purpose of completely sealing the pipe opening. The phenomenon of cement slurry infiltrating into the wire pipe occurs from time to time, eventually leading to the problem of wire pipe blockage. In addition, the existing wire sheath pipes are classified into four categories according to mechanical properties: light, medium, heavy and extra heavy. The wall thickness of different types of wire pipes is different, and the inner diameter of the wire pipes is also different. The existing pipe plugs on the market have a single function. If each type of wire pipe is equipped with a corresponding pipe plug, it is easy to cause inconvenience in management and waste of molds. Summary of the invention

[0003] The present invention is to overcome at least one of the defects of the prior art and provide a universal pipe plug, which aims to solve the above technical problems at least to a certain extent.

[0004] In order to achieve the above technical effects, the technical solution of the present invention is as follows: a universal pipe plug, comprising a cover plate, a plug body and a handle, all components of the pipe plug are integrally injection molded, the bottom end of the handle is fixed to the upper cover surface of the cover plate, the lower cover surface of the cover plate is connected to the upper end of the plug body, the plug body connected to the cover plate and extending axially along the lower cover surface of the cover plate is divided into multiple parts by multiple air gaps distributed alternately, the bottom surface of the lower end of the plug body is completely open and non-sealed, and the lower cover surface of the cover plate, the air gap and the inner side surface of the plug body are surrounded by a cylindrical hollow structure.

[0005] When the pipe plug is installed, after the plug body is inserted into the lumen of the wire tube, it shrinks toward the axis of the lumen due to the existence of the air gap, and the smaller the lumen aperture, the greater the shrinkage, so it can adapt to the aperture shrinkage of different wire tubes.

[0006] As a specific embodiment, the plug body is divided into four parts by the air gap, the four parts are evenly spaced and distributed, and a protrusion is provided on the outer surface of each part. Correspondingly, there are four protrusions.

[0007] Preferably, the four parts divided by the air gap have the same length extending in the axial direction of the lower cover surface of the cover plate. When the plug body is inserted into the wire tube, the protrusion can rebound and expand the tube cavity, and it is not easy to fall out. Therefore, the universal pipe plug proposed in the present invention can be used in the inner holes of various wire tubes, reducing the mold opening cost of wire tube plugs with different inner diameters.

[0008] Preferably, the outer diameter of the cover plate is the same as the outer diameter of the wire tube, and after the plug body is inserted into the tube, it seamlessly connects with the end of the wire tube, shielding the end of the wire tube to prevent debris from entering the tube.

[0009] Preferably, the handle of the pipe plug is a solid body. As a specific embodiment, the handle is a solid arch-shaped body and can be divided into two parts. The upper and lower parts are connected as one piece. The upper part is semicircular and the lower part is rectangular. The upper and lower parts have the same thickness in the direction perpendicular to the central axis of the cover surface. The diameter side of the semicircular edge of the upper part is connected to the upper end of the rectangular body of the lower part. The bottom end of the handle is fixed at the center of the upper cover surface of the cover to facilitate the insertion and removal of the pipe plug in the online pipe.

[0010] Compared with the prior art, the technical solution of the present invention has the following beneficial effects: the present invention has a simple structure, can be repeatedly installed and disassembled, has good toughness, is not easy to break, effectively prevents foreign matter such as cement slurry and dust from entering the wire sheath tube, can adapt to the apertures of a variety of different wire tubes, and reduces the mold opening costs of wire tube plugs with different inner diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0012] Figure 1 A schematic diagram of the structure of the present invention.

[0013] Figure 2 It is a cross-sectional view of the present invention.

[0014] Figure 3 It is three views of the present invention.

[0015] Figure 4 The figure is a schematic diagram of the structure of the present invention applied to a wire tube.

[0016] Description of Figure Numbers:

[0017] Label name Label name 1 Plug 11 Raised 2 Cover 12 Air gap 3 handle 13 Wire pipe DETAILED DESCRIPTION

[0018] The drawings are for illustrative purposes only and should not be construed as limiting the present patent;

[0019] In order to better illustrate the present embodiment, some parts in the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product;

[0020] It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0021] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0022] See also Figure 1 The present invention provides a universal pipe plug, including a cover plate 2, a plug body 1 and a handle 3. All components of the pipe plug are integrally injection molded using PE or PP materials. As a specific embodiment, Figure 1 , Figure 2 As shown, the handle 3 is a solid arch shape, and the bottom end is fixed at the center of the upper cover surface of the cover plate 2, which is convenient for inserting and removing the pipe plug from the inline pipe. The lower cover surface of the cover plate 2 is connected to the upper end of the plug body 1, and the plug body 1 connected to the cover plate 2 and extending axially along the lower cover surface of the cover plate 2 is divided into multiple parts by multiple air gaps 12 distributed alternately. The bottom surface of the lower end of the plug body 1 is completely open and non-sealed, and the lower cover surface of the cover plate 2, the air gap 12 and the inner side surface of the plug body 1 are surrounded to form a cylindrical hollow structure.

[0023] See also Figure 1 and Figure 3 In the top view, the plug body 1 is divided into four parts by air gaps 12, and the four parts are evenly spaced apart. A protrusion 11 is provided on the outer surface of each part. Correspondingly, there are four protrusions, and the four parts have the same length extending axially along the lower cover surface of the cover plate 2. Figure 4 As shown, when the pipe plug is installed, after the plug body 1 is inserted into the lumen of the wire tube 13 , it shrinks toward the axis of the lumen due to the existence of the air gap 12 , and the smaller the lumen aperture, the greater the shrinkage, so it can adapt to the shrinkage of the aperture of different wire tubes 13 .

[0024] See also Figure 4 The outer diameter of the cover plate 2 is the same as the outer diameter of the wire tube 13. After the plug body 1 is inserted into the tube, it is seamlessly connected with the end of the wire tube 13 to cover the end of the wire tube 13 to prevent debris from entering the tube. When the plug body 1 is inserted into the tube, the protrusion 11 can rebound and expand the tube cavity, and it is not easy to fall out. Therefore, the universal pipe plug proposed by the present invention can be used in the inner holes of a variety of wire tubes, reducing the mold opening cost of wire tube plugs with different inner diameters.

[0025] The same or similar reference numerals correspond to the same or similar components;

[0026] The positional relationships described in the drawings are only for illustrative purposes and should not be construed as limiting the present patent.

[0027] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A universal pipe plug, characterized in that: The pipe plug comprises a cover plate (2), a plug body (1) and a handle (3), wherein all components of the pipe plug are integrally injection molded, the bottom end of the handle (3) is fixed to the upper cover surface of the cover plate (2), the lower cover surface of the cover plate (2) is connected to the upper end of the plug body (1), the plug body (1) connected to the cover plate (2) and extending axially along the lower cover surface of the cover plate (2) is divided into multiple parts by multiple air gaps (12) distributed alternately, the bottom surface of the lower end of the plug body (1) is completely open and non-sealed, and the lower cover surface of the cover plate (2), the air gap (12) and the inner side surface of the plug body (1) are surrounded to form a cylindrical hollow structure; when the pipe plug is installed, after the plug body is inserted into the tube cavity of the wire tube, it shrinks toward the central axis of the tube cavity due to the existence of the air gap, and the smaller the diameter of the tube cavity, the greater the shrinkage, so that it can adapt to the shrinkage of the diameter of different wire tubes; The plug body (1) is divided into four parts by the air gap (12), the four parts are evenly spaced and distributed, a protrusion (11) is provided on the outer surface of each part, and correspondingly, there are four protrusions; the four parts have the same length extending axially along the lower cover surface of the cover plate (2); The outer diameter of the cover plate (2) is the same as the outer diameter of the wire tube (13), and after the plug body (1) is inserted into the tube, it is seamlessly connected to the end of the wire tube (13), shielding the end of the wire tube to prevent debris from entering the tube; The handle (3) is a solid body, and the bottom end is fixed to the center of the upper cover surface of the cover plate (2). The handle (3) is in the shape of a solid arch as a whole and can be divided into two parts. The upper and lower parts are connected as one. The upper part of the handle (3) is in the shape of a semicircular pancake, and the lower part is in the shape of a rectangular parallelepiped. The upper part and the lower part have the same thickness in a direction perpendicular to the central axis of the cover plate (2), and the diameter side of the edge of the semicircular pancake of the upper part is connected to the upper end of the rectangular parallelepiped of the lower part.

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