Adjustable waterproof pipe plug

Abstract

The utility model designs an adjustable waterproof pipe plug which comprises a bottom steering wheel 1, a base plate 2, a diameter expander 3, a rubber annular cylindrical sleeve 4 and a bolt 5. A bolt 5 sequentially penetrates through the rubber annular cylindrical sleeve 4, the diameter expander 3 and the base plate 2 and is mechanically connected with an embedded nut of a nut seat 11 of the steering wheel 1, and when the steering wheel 1 is screwed and rotated clockwise, the diameter expander 3 gradually enters the rubber annular cylindrical sleeve 4 from the lower surface to the upper surface and pushes the rubber annular cylindrical sleeve 4 to expand outwards in the radial direction, so that the steering wheel 1 is tightened. Therefore, the sealing and waterproof effects are achieved.

Description

Technical Field

[0001] This utility model relates to a pipe plug, and more particularly to an adjustable waterproof pipe plug for use before cable threading in power cable conduits. Background Technology

[0002] Power cable plugs are crucial accessories used to seal the ends of cable protection pipes before cable laying, preventing water and sand from entering the pipes. Plugs without adjustable functions have a small contact area with the pipe wall, resulting in low pressure and friction, making them prone to falling off. Therefore, an adjustable waterproof plug is designed. When the plug is contracted, it is inserted into the cable protection pipe end; after insertion, its outer diameter expands, increasing the contact area with the pipe wall, thus increasing pressure and friction, making it less likely to fall off. Utility Model Content

[0003] The purpose of this invention is to provide an adjustable waterproof pipe plug. After being inserted into the pipe, the outer diameter of the pipe plug is expanded by adjusting the steering wheel on the cover, thereby increasing the radial pressure and contact area between the pipe plug and the inner wall of the pipe, thus increasing the friction between the pipe plug and the inner wall of the pipe, preventing it from falling off, and achieving a waterproof effect.

[0004] The technical solution adopted by this utility model to solve its technical problem is: an adjustable waterproof pipe plug, including a steering wheel, a pad, an expander, a rubber annular cylindrical sleeve, and bolts;

[0005] The steering wheel includes a nut seat, a disc, and support columns. The disc and the nut seat are connected by the support columns. The nut seat is a near-annular cylinder. A nut can be embedded in the inner surface of the inner ring. The nut is hot-melted and embedded during injection molding, and can only pass through the bolt. The outer surface of the outer ring is hot-melted to one end of the support column, and the other end of the support column is hot-melted to the disc. There are at least three support columns, evenly distributed between the disc and the nut seat.

[0006] The expander is a frustum-shaped device with the cylinder hollowed out in the middle. It has a large upper surface area, facing upwards and evenly arranged with at least three slots, a small lower surface area, facing downwards, and at least three wing ridges evenly distributed on the side surface.

[0007] The pad is a near-annular cylinder, with at least three bolt holes evenly arranged around the inner ring. The upper surface is connected to the lower surface of the nut seat of the steering wheel by at least three bolts. The outer ring is connected to the groove on the upper surface of the expander by a snap-fit.

[0008] The rubber annular cylindrical sleeve is annular cylindrical in shape and is made of water-swellable sealing rubber.

[0009] The advantages of this utility model are as follows: the bolt 5 passes through the rubber annular cylindrical sleeve, the expander, and the washer in sequence, and is mechanically connected to the nut embedded in the nut seat of the steering wheel. When the steering wheel is tightened and rotated clockwise, the expander gradually enters the rubber annular cylindrical sleeve from the lower surface to the upper surface, pushing the rubber annular cylindrical sleeve to expand radially outward until it tightly adheres to the inner wall of the pipe, thereby achieving a sealing and waterproofing effect. Attached Figure Description

[0010] The following are the accompanying drawings of this utility model:

[0011] Figure 1 This is an exploded view of an adjustable waterproof pipe plug, where 1 is the steering wheel, 2 is the pad, 3 is the expander, 4 is the rubber annular cylindrical sleeve, and 5 is the bolt.

[0012] Figure 2 This is a 3D view of the adjustable waterproof pipe plug steering wheel 1, where 11 is the nut seat, 12 is the disc, and 13 is the support column;

[0013] Figure 3 This is a 3D view of the expander of the adjustable waterproof pipe plug, where 31 is the upper surface, 32 is the groove, 33 is the lower surface, and 34 is the wing ridge.

[0014] Figure 4 It is a three-dimensional view of the adjustable waterproof pipe plug pad 2, the expander 3, and the steering wheel 1;

[0015] Figure 5 This is a three-dimensional view of the adjustable waterproof pipe plug rubber annular cylindrical sleeve 4;

[0016] Figure 6 This is a 3D view of bolt 5 of the adjustable waterproof pipe plug;

[0017] Figure 7 This is a cross-sectional view of an adjustable waterproof pipe plug. Detailed Implementation

[0018] The present invention will be described below with reference to the accompanying drawings of the embodiments thereof:

[0019] like Figure 1 As shown, the adjustable waterproof pipe plug includes a steering wheel 1, a pad 2, an expander 3, a rubber annular cylindrical sleeve 4, and a bolt 5.

[0020] like Figure 1 , Figure 2As shown, the steering wheel 1 includes a nut seat 11, a disc 12, and a support column 13. The disc 12 and the nut seat 11 are connected by the support column 13. The nut seat 11 is a ring-shaped cylinder. A nut can be embedded in the inner surface of the inner ring. The nut is hot-melted and embedded during injection molding, and can only pass through the bolt 5. The outer surface of the outer ring is hot-melted to one end of the support column 13, and the other end of the support column 13 is hot-melted to the disc 12. There are at least three support columns 13, which are evenly distributed between the disc 12 and the nut seat 11.

[0021] like Figure 3 As shown, the expander 3 is a frustum-shaped device with the cylinder cut out in the middle. The upper surface 31 has a large area, faces upward and has at least three slots 32 evenly arranged. The lower surface 33 has a small area, faces downward, and at least three wing ridges 34 are evenly distributed on the side surface.

[0022] like Figure 4 As shown, the pad 2 is a ring-shaped cylinder with at least three bolt holes evenly arranged around the inner ring. The upper surface is connected to the lower surface of the nut seat 11 of the steering wheel 1 by at least three bolts. The outer ring is connected to the slot 32 on the upper surface of the expander 3 by a snap fastener.

[0023] like Figure 5 As shown, the rubber annular cylindrical sleeve 4 is annular cylindrical in shape and is made of water-swellable sealing rubber.

[0024] The bolt 5 is as follows Figure 6 As shown.

[0025] like Figure 7 As shown, the bolt 5 is passed sequentially through the rubber annular cylindrical sleeve 4, the expander 3, and the pad 2, and is mechanically connected to the nut embedded in the nut seat 11 of the steering wheel 1. When the steering wheel 1 is tightened and rotated clockwise, the expander 3 gradually enters the rubber annular cylindrical sleeve 4 from the lower surface to the upper surface, pushing the rubber annular cylindrical sleeve 4 to expand radially outward until it tightly adheres to the inner wall of the pipe, thus achieving a sealing and waterproofing effect. When the steering wheel 1 is rotated counterclockwise, the expander 3 gradually disengages from the rubber annular cylindrical sleeve 4, and the rubber annular cylindrical sleeve 4 contracts radially inward, thereby disengaging from the inner wall of the pipe.

Claims

1. An adjustable waterproof pipe plug, characterized in that: Includes steering wheel (1), pad (2), expander (3), rubber annular cylindrical sleeve (4), and bolt (5); The steering wheel (1) includes a nut seat (11), a disc (12), and a support column (13), wherein the disc (12) and the nut seat (11) are connected by the support column (13); The expander (3) is a frustum-shaped device with the cylinder cut out in the middle. The upper surface (31) has a large area, faces upward and is evenly provided with at least three slots (32). The lower surface (33) has a small area, faces downward, and the side surface is evenly distributed with at least three wing ridges (34). The pad (2) is a ring-shaped cylinder with at least three bolt holes evenly arranged around the inner ring. The rubber annular cylindrical sleeve (4) is annular cylindrical in shape and is a water-swellable sealing rubber. The bolt (5) is passed through the rubber annular cylindrical sleeve (4), the expander (3), and the pad (2) in sequence, and mechanically connected to the nut in the nut seat (11) of the steering wheel (1).

2. The adjustable waterproof pipe plug according to claim 1, characterized in that: The nut seat (11) is a ring-shaped cylinder. The inner surface of the inner ring can be embedded with a nut. The nut is hot-melted and embedded during injection molding, and can only pass through the bolt (5). The outer surface of the outer ring is hot-melted to one end of the support column (13). The other end of the support column (13) is hot-melted to the disc (12). There are at least three support columns (13), which are evenly distributed between the disc (12) and the nut seat (11).

3. The adjustable waterproof pipe plug according to claim 1, characterized in that: The upper surface of the pad (2) is connected to the lower surface of the nut seat (11) of the steering wheel (1) by at least three bolts; the outer ring is connected to the slot (32) on the upper surface of the expander (3) by a snap fastener.

4. The adjustable waterproof pipe plug according to claim 1, characterized in that: The expander (3) is located inside the rubber annular cylindrical sleeve (4), causing the rubber annular cylindrical sleeve (4) to expand outward along the radial direction until it is tightly attached to the inner wall of the pipe; the expander (3) is located outside the rubber annular cylindrical sleeve (4), causing the rubber annular cylindrical sleeve (4) to contract inward along the radial direction and detach from the inner wall of the pipe.

Images