Search

CN-224218098-U - Adjustable waterproof pipe plug

CN224218098UCN 224218098 UCN224218098 UCN 224218098UCN-224218098-U

Abstract

The utility model designs an adjustable waterproof pipe plug which comprises a bottom steering wheel 1, a backing plate 2, a diameter expander 3, a rubber annular cylindrical sleeve 4 and a bolt 5, wherein the bolt 5 sequentially passes through the rubber annular cylindrical sleeve 4, the diameter expander 3 and the backing plate 2 and is mechanically connected with a nut embedded in a nut seat 11 of the steering wheel 1, when the steering wheel 1 is screwed clockwise, the diameter expander 3 gradually enters the rubber annular cylindrical sleeve 4 from the lower surface to the upper surface, and the rubber annular cylindrical sleeve 4 is pushed to expand outwards along the radial direction until the rubber annular cylindrical sleeve is tightly adhered to the inner wall of a pipeline, so that the waterproof sealing effect is achieved.

Inventors

  • LIANG ZHANGFU

Assignees

  • 福建和盛塑业有限公司

Dates

Publication Date
20260508
Application Date
20250425

Claims (4)

  1. 1. The adjustable waterproof pipe plug is characterized by comprising a steering wheel (1), a backing plate (2), a diameter expander (3), a rubber annular cylindrical sleeve (4) and a bolt (5); The steering wheel (1) comprises a nut seat (11), a disc (12) and a support column (13), wherein the disc (12) is connected with the nut seat (11) through the support column (13); The diameter expander (3) is in a truncated cone-like shape with a cylinder cut in the middle, the upper surface (31) is large in area, at least three clamping grooves (32) are uniformly arranged upwards, the lower surface (33) is small in area, and at least three wing edges (34) are uniformly distributed on the side surface downwards; the backing plate (2) is in a ring-like cylinder shape, and at least three bolt holes are uniformly formed in the periphery of the inner ring; the rubber annular cylindrical sleeve (4) is annular cylinder-shaped and is water-swelling sealing rubber; the bolts (5) sequentially penetrate through the rubber annular cylindrical sleeve (4), the diameter expander (3) and the backing plate (2) and are mechanically connected with the embedded nuts of the nut seat (11) of the steering wheel (1).
  2. 2. The adjustable waterproof pipe plug according to claim 1, wherein the nut seat (11) is in a ring-like cylindrical shape, nuts can be embedded into the inner surface of the inner ring, the nuts can be embedded in a hot-melt manner during injection molding and can only pass through the bolts (5), the outer surface of the outer ring is connected with one end of the supporting column (13) in a hot-melt manner, the other end of the supporting column (13) is connected with the disc (12) in a hot-melt manner, and at least three supporting columns (13) are uniformly distributed between the disc (12) and the nut seat (11).
  3. 3. The adjustable waterproof pipe plug according to claim 1, wherein the upper surface of a backing plate (2) is connected with the lower surface of a nut seat (11) of the steering wheel (1) through at least three bolts, and the outer ring is connected with a clamping groove (32) on the upper surface of the expander (3) through a buckle.
  4. 4. The adjustable waterproof pipe plug according to claim 1, wherein the diameter expander (3) is located in the rubber annular cylindrical sleeve (4) and enables the rubber annular cylindrical sleeve (4) to expand outwards along the radial direction until the rubber annular cylindrical sleeve is tightly attached to the inner wall of the pipe, the diameter expander (3) is located outside the rubber annular cylindrical sleeve (4), and the rubber annular cylindrical sleeve (4) contracts inwards along the radial direction and is separated from the inner wall of the pipe.

Description

Adjustable waterproof pipe plug Technical Field The utility model relates to a pipe plug, in particular to an adjustable waterproof pipe plug used before cable penetration for a power cable pipeline. Background The utility model provides a power cable is with pipe plug before power cable lays, the shutoff is in the port of cable protection pipe section for waterproof, prevent silt entering cable protection pipe's key accessory, the pipe plug of no adjustable function is little with the pressure of pipeline inner wall, frictional force is little with the pipeline inner wall, the easy drop, this, design an adjustable waterproof pipe plug, put into cable protection pipe end when contracting, enlarge the external diameter after entering, the contact surface with the pipeline inner wall is big, with the inside pressure of pipeline big, frictional force is big, be difficult for droing. Disclosure of utility model The utility model aims to provide an adjustable waterproof pipe plug, which expands the outer diameter of the pipe plug by adjusting a steering wheel on a cover after entering a pipeline, and improves the radial pressure and the contact area between the pipe plug and the inner wall of the pipeline, thereby improving the friction between the pipe plug and the inner wall of the pipeline, preventing the pipe plug from falling off and achieving the waterproof effect. The utility model solves the technical problems by adopting the technical proposal that the adjustable waterproof pipe plug comprises a steering wheel, a backing plate, a diameter expander, a rubber annular cylinder sleeve and a bolt; The steering wheel comprises a nut seat, a disc and support columns, wherein the disc is connected with the nut seat through the support columns, the nut seat is in a ring-like cylinder shape, nuts can be embedded into the inner surface of an inner ring, the nuts can be embedded in a hot-melt manner during injection molding and only pass through the bolts, the outer surface of an outer ring is connected with one end of each support column in a hot-melt manner, the other end of each support column is connected with the disc in a hot-melt manner, and at least three support columns are uniformly distributed between the disc and the nut seat; The diameter expander is in a truncated cone-like shape with a cylindrical body cut in the middle, the upper surface area is large, at least three clamping grooves are uniformly arranged upwards, the lower surface area is small, and at least three wing edges are uniformly distributed on the side surface downwards; The backing plate is in a ring-like cylinder shape, at least three bolt holes are uniformly formed in the periphery of the inner ring, and the upper surface of the backing plate is connected with the lower surface of the nut seat of the steering wheel through at least three bolts; the rubber annular cylinder sleeve is annular cylinder-shaped and is water-swelling sealing rubber. The utility model has the advantages that the bolt 5 sequentially passes through the rubber annular cylindrical sleeve, the diameter expander and the backing plate and is mechanically connected with the nut embedded in the nut seat of the steering wheel, when the steering wheel is screwed clockwise, the diameter expander gradually enters the rubber annular cylindrical sleeve from the lower surface to the upper surface, and the rubber annular cylindrical sleeve is pushed to expand outwards along the radial direction until the rubber annular cylindrical sleeve is tightly adhered to the inner wall of the pipeline, so that the sealing and waterproof effects are achieved. Drawings The following is the accompanying drawings of the present utility model: FIG. 1 is an explosion diagram of an adjustable waterproof pipe plug, wherein 1 is a steering wheel, 2 is a backing plate, 3 is a diameter expander, 4 is a rubber annular cylindrical sleeve and 5 bolts; Fig. 2 is a perspective view of the steering wheel 1 of the adjustable waterproof pipe plug, wherein 11 is a nut seat, 12 is a disc, and 13 is a supporting column; Fig. 3 is a perspective view of an adjustable waterproof pipe plug expander 3, wherein 31 is an upper surface, 32 is a clamping groove, 33 is a lower surface, and 34 is a wing; fig. 4 is a perspective view of the backing plate 2 and the expander 3 of the adjustable waterproof pipe plug and the steering wheel 1; fig. 5 is a perspective view of the rubber annular cylindrical sleeve 4 of the adjustable waterproof pipe plug; fig. 6 is a perspective view of the bolt 5 of the adjustable waterproof pipe plug; Fig. 7 is an axial sectional view of an adjustable waterproof plug. Detailed Description The utility model is described below with reference to the drawings in the embodiments of the utility model: as shown in fig. 1, the adjustable waterproof pipe plug comprises a steering wheel 1, a backing plate 2, a diameter expander 3, a rubber annular cylinder sleeve 4 and a bolt 5. As shown in fig. 1 and