CN214412144U

CN214412144U - Cable pipeline hole plugging device

Info

Publication number: CN214412144U
Application number: CN202120785067.6U
Authority: CN
Inventors: 高茁力; 陈其斌; 陈其建; 黄云; 冯景龙; 陈家英
Original assignee: Chongqing Hongfei Electric Co ltd
Current assignee: Chongqing Hongfei Electric Co ltd
Priority date: 2021-04-16
Filing date: 2021-04-16
Publication date: 2021-10-15
Anticipated expiration: 2031-04-16

Abstract

For solving prior art cable duct hole plugging device and having the influence that the shutoff performance received rubber elastic deformation performance, its shutoff intensity, shutoff scope and durability all comparatively limited scheduling problem, the utility model provides a cable duct hole plugging device, include: the left end cover, the right end cover and the rubber seal; the left end cover is a rigid tubular cylinder, and a rectangular space for accommodating the left end of the rubber seal is arranged at the right end of the tubular cylinder; the right end cover is a cone with a rigid cross section in a transverse isosceles cone shape; the rubber seal is an elastic tubular cylinder, the left end of the tubular cylinder is matched with the rectangular space of the left end cover, the right end of the tubular cylinder is provided with an annular gap with the depth not less than two thirds of the axial length of the tubular cylinder by cutting a section of the annular gap from the middle part of the pipe wall of the tubular cylinder, and the width of the annular gap is not more than 3 mm. The beneficial technical effects of the utility model are that rubber seal's shutoff intensity, shutoff scope and durability all improve to some extent.

Description

Cable pipeline hole plugging device

Technical Field

The utility model relates to cable duct hole plugging technique, in particular to cable duct hole plugging device.

Background

The cable duct hole plugging device is a sealing device arranged in a cable duct and is used for plugging the section of a cable duct hole, namely, a gap between an inner circle of the cable hole and an outer circle of the plugging device and a gap between the inner circle of the plugging device and an outer circle of the cable are plugged through inward and outward expansion, so that the plugging of the section of the cable duct hole is realized. The invention patent of patent No. CN201710373162.3 adopts a U-shaped annular rubber sealing ring with a cross section, the rubber sealing ring is sleeved between a cable and a cable hole, and two edges of the U-shaped cross section of the sealing ring are deformed towards two sides respectively by moving rigid end covers at two sides inwards in opposite directions, so that gaps between an inner circle of the cable hole and an outer circle of a plugging device and gaps between the inner circle of the plugging device and the outer circle of the cable are plugged. Obviously, the sealing realized by completely depending on the elastic deformation of the rubber, the inner side of the sealing contact surface of the rubber sealing ring is hollow, and the sealing strength, the sealing range and the durability of the sealing are limited.

Obviously, the cable pipeline hole plugging device in the prior art has the problems that the inner side of the sealing contact surface of the rubber sealing ring is hollow, the plugging strength, the plugging range and the durability of the rubber sealing ring are limited, and the like.

Disclosure of Invention

For solving prior art cable duct hole plugging device and having the influence that the shutoff performance received rubber elastic deformation performance, its shutoff intensity, shutoff scope and durability all comparatively limited scheduling problem, the utility model provides a cable duct hole plugging device.

The utility model relates to a cable duct hole plugging device, include: the left end cover, the right end cover and the rubber seal; the left end cover is a rigid tubular cylinder, and a rectangular space for accommodating the left end of the rubber seal is arranged at the right end of the tubular cylinder; the right end cover is a cone with a rigid cross section in a transverse isosceles cone shape; the rubber seal is an elastic tubular cylinder, the left end of the tubular cylinder is matched with the rectangular space of the left end cover, the right end of the tubular cylinder is provided with an annular gap with the depth not less than two thirds of the axial length of the tubular cylinder by cutting a section of the annular gap from the middle part of the pipe wall of the tubular cylinder, and the width of the annular gap is not more than 3 mm.

Furthermore, the right end of the inner circle of the rubber sealing tubular cylinder is provided with a sealing ring which is radially inward convex and has a semicircular cross section, and the right end of the outer circle of the tubular cylinder is provided with a sealing ring which is radially outward convex and has a semicircular cross section.

Furthermore, the left end of the left end cover is provided with an annular step, and the diameter of the outer circle of the annular step is larger than the diameter of the cable pipeline hole.

Further, the height of the transverse isosceles cone of the right end cover is smaller than or equal to the depth of the rubber sealing annular gap.

Furthermore, the left end cover and the right end cover are both of a semicircular combined structure, namely, a complete circle is formed by combining two rigid semicircular rings; and a notch penetrating through the whole axial direction is arranged on the pipe wall of the rubber sealing tubular cylinder.

The utility model relates to a cable duct hole plugging device's beneficial technological effect is that rubber seal's shutoff intensity, shutoff scope and durability all improve to some extent.

Drawings

FIG. 1 is a schematic structural diagram of the cable duct hole plugging device of the present invention;

FIG. 2 is a schematic view of a semicircular combined structure of an end cover of the cable conduit hole plugging device of the present invention;

fig. 3 is a schematic view of the gap of the rubber sealing tubular column tube wall of the plugging device for cable conduit hole of the utility model.

The following describes a cable duct hole plugging device according to the present invention with reference to the accompanying drawings and embodiments.

Detailed Description

Fig. 1 is a schematic structural view of the cable duct hole plugging device of the present invention, in which 1 is a left end cap, 1-1 is an annular step, 2 is a rubber seal, and 3 is a right end cap. According to the drawing, the utility model relates to a cable duct hole plugging device, include: the left end cover 1, the right end cover 3 and the rubber seal 2; the left end cover 1 is a rigid tubular cylinder, and a rectangular space for accommodating the left end of the rubber seal is arranged at the right end of the tubular cylinder; the right end cover 2 is a cone with a rigid cross section in a transverse isosceles cone shape; rubber seal 2 is elasticity tubulose cylinder, and the left end of its tubulose cylinder matches with the rectangle space of left end lid, and the right-hand member has cut open the annular seam that a degree of depth is no less than two-thirds of tubulose cylinder axial length from the pipe wall middle part of tubulose cylinder, and the width of annular seam is not more than 3 mm. During the specific use, according to the diameter in cable duct hole and the external diameter of cable, the choice size is suitable the utility model discloses cable duct hole plugging device, with the left end lid, sealing rubber and right-hand member lid suit are on the cable in proper order, place at cable duct hole suitable position, make the distance between left end lid and the right-hand member lid diminish gradually through tie bolt, make the point portion of right-hand member lid cone get into the sealed annular gap of rubber gradually, the sealed divided inside by annular gap of extrusion rubber, outer annular part inwards or outer expansion gradually, thereby realize the sectional shutoff of cable duct hole.

In order to improve the sealing effect, the right end of the inner circle of the rubber sealing tubular cylinder is provided with a sealing ring which is radially inwards convex and has a semicircular cross section, and the right end of the outer circle of the tubular cylinder is provided with a sealing ring which is radially outwards convex and has a semicircular cross section. The sealing ring is arranged, so that the rubber seal can adapt to the inner wall of a rough cable pipeline or the surface of a cable, and the rubber seal is gradually unfolded from a point to a line to a surface in contact with the pipeline wall or the surface of the cable, so that the sealing effect is better.

For preventing the excessive displacement of left end cover in to the cable duct hole, the left end of left end cover is provided with annular step, annular step's excircle diameter is greater than cable duct hole diameter. When the left end cover moves towards the cable pipeline hole, the annular step prevents the left end cover from moving towards the cable pipeline hole, and therefore excessive movement of the left end cover towards the cable pipeline hole is prevented.

In order to ensure that the right end cover cone can completely enter the rubber sealing annular gap, the height of the transverse isosceles cone of the right end cover is less than or equal to the depth of the rubber sealing annular gap.

Fig. 2 is the utility model discloses the semicircle integrated configuration schematic diagram of cable duct hole plugging device end cover, and fig. 3 is the utility model discloses cable duct hole plugging device rubber seal tubulose cylinder pipe wall breach schematic diagram. As can be seen from the figure, in order to facilitate the sleeving of the cable pipeline hole plugging device on a cable, the left end cover and the right end cover are both in a semicircular combined structure, namely, two rigid semicircular rings are combined into a whole circle; and a notch penetrating through the whole axial direction is arranged on the pipe wall of the rubber sealing tubular cylinder. During the suit, can be with two semicircles of end cover from cable both sides spiral-lock on the cable, rethread tie bolt fixes, can be with left end cover and right-hand member lid suit on the cable. The rubber sealing tubular column body can be broken off from the axial gap and is restored into the tubular column body by the elasticity of the rubber. By adopting the structure, construction can be more conveniently carried out.

Obviously, the utility model relates to a cable duct hole plugging device's beneficial technological effect is that rubber seal's shutoff intensity, shutoff scope and durability all improve to some extent.

Claims

1. A cable duct hole plugging device, characterized in that, this plugging device includes: the left end cover, the right end cover and the rubber seal; the left end cover is a rigid tubular cylinder, and a rectangular space for accommodating the left end of the rubber seal is arranged at the right end of the tubular cylinder; the right end cover is a cone with a rigid cross section in a transverse isosceles cone shape; the rubber seal is an elastic tubular cylinder, the left end of the tubular cylinder is matched with the rectangular space of the left end cover, the right end of the tubular cylinder is provided with an annular gap with the depth not less than two thirds of the axial length of the tubular cylinder by cutting a section of the annular gap from the middle part of the pipe wall of the tubular cylinder, and the width of the annular gap is not more than 3 mm.

2. The cable duct hole plugging device according to claim 1, wherein the right end of the inner circle of said rubber sealing tubular cylinder is provided with a sealing ring having a semicircular radially inward convex sectional shape, and the right end of the outer circle of said tubular cylinder is provided with a sealing ring having a semicircular radially outward convex sectional shape.

3. The cable duct hole plugging device according to claim 1, wherein a left end of said left end cap is provided with an annular step, and an outer diameter of said annular step is larger than a diameter of said cable duct hole.

4. The cable duct orifice plugging device of claim 1, wherein the height of the transverse isosceles cone of said right end cap is less than or equal to the depth of the rubber sealing annular slit.

5. The cable duct hole plugging device according to any one of claims 1 to 4, wherein said left end cap and said right end cap are both semi-circular combined structures, i.e. two rigid semi-circular rings are combined into a complete circle; and a notch penetrating through the whole axial direction is arranged on the pipe wall of the rubber sealing tubular cylinder.