CN214412143U

CN214412143U - Cable pipeline hole plugging device

Info

Publication number: CN214412143U
Application number: CN202120785049.8U
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 left inner inclined plane with gradually increased diameter from left to right is arranged at the right end of the inner circle of the tubular cylinder; the right end cover is a rigid tubular column with a rectangular cross section; the rubber seal is an elastic tubular cylinder, the left end of the excircle of the tubular cylinder is provided with a seal outer inclined surface with the diameter gradually increased from left to right, the right end of the excircle of the tubular cylinder is provided with an inner circle default ring with a semicircular cross section shape, namely, a semicircular annular gap is arranged from the circle center to the excircle direction. 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 shutoff 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 rigid end covers on two sides move inwards in opposite directions, so that two edges of the U-shaped cross section of the sealing ring deform towards two sides respectively, and gaps between an inner circle of the cable hole and an outer circle of a plugging device and 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 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 left inner inclined plane with gradually increased diameter from left to right is arranged at the right end of the inner circle of the tubular cylinder; the right end cover is a rigid tubular column with a rectangular cross section; the rubber seal is an elastic tubular cylinder, the left end of the excircle of the tubular cylinder is provided with a seal outer inclined plane with gradually increased diameter from left to right, and the right end of the inner circle of the tubular cylinder is provided with an inner circle short ring with a semicircular cross section shape, namely, a semicircular annular gap is arranged from the circle center to the outer circle direction; the axial inclination of the left inner inclined plane is the same as that of the sealing outer inclined plane, and the maximum diameter of the left inner inclined plane is 0.5mm to 3.0mm larger than the minimum diameter of the sealing outer inclined plane.

Furthermore, a sealing ring which is radially convex and has a semicircular section is arranged at the left end of the inner circle of the rubber sealing tubular cylinder.

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 discloses cable conduit 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 view of a cable duct hole plugging device of the present invention;

fig. 2 is a schematic view of a semicircular combined structure of the end cover of the cable pipeline hole plugging device of the utility model;

fig. 3 is a schematic view of the gap of the rubber sealing tubular column tube wall of the plugging device for cable conduit holes 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 the following detailed description.

Detailed Description

Fig. 1 is a schematic structural diagram of the cable duct hole plugging device of the present invention, in which 1 is a left end cap, 2 is a rubber seal, 2-1 is a semicircular sealing ring, 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 left inner inclined plane with gradually increased diameter from left to right is arranged at the right end of the inner circle of the tubular cylinder; the right end cover 2 is a rigid tubular column with a rectangular cross section; the rubber seal 2 is an elastic tubular cylinder, the left end of the excircle of the tubular cylinder is provided with a seal outer inclined plane with the diameter gradually increased from left to right, and the right end of the inner circle of the tubular cylinder is provided with an inner circle short ring with a semicircular cross section shape, namely, a semicircular annular gap is arranged from the circle center to the outer circle direction; the axial inclination of the left inner inclined plane is the same as that of the sealing outer inclined plane, and the maximum diameter of the left inner inclined plane is 0.5mm to 3.0mm larger than the minimum diameter of the sealing outer inclined plane. 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 end cover suit are on the cable in proper order, and put into the suitable position in cable duct hole, make the distance between left end lid and the right-hand member lid diminish gradually through tie bolt, make the inclined plane get into sealed outer inclined plane gradually in the left end lid, because two liang of the same of axial inclination between inclined plane, and the end cover is the rigidity piece, rubber seal is the elastic component, make rubber seal's left end inwards expand gradually, meanwhile, the interior circle of rubber seal right-hand member lacks the ring portion and is left, the outside expansion under the extrusion of right-hand member, thereby realize the shutoff of cable duct hole section.

In order to improve the sealing effect, the left end of the excircle of the rubber sealing tubular cylinder is provided with a radially outward convex outer sealing ring with a semicircular cross section, and the left end of the inner circle of the rubber sealing tubular cylinder is provided with a radially outward convex sealing ring with 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 line to plane in contact with the pipeline wall or the surface of the cable, so that the sealing effect is better.

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 discloses cable conduit 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 left inner inclined plane with gradually increased diameter from left to right is arranged at the right end of the inner circle of the tubular cylinder; the right end cover is a rigid tubular column with a rectangular cross section; the rubber seal is an elastic tubular cylinder, the left end of the excircle of the tubular cylinder is provided with a seal outer inclined plane with gradually increased diameter from left to right, and the right end of the inner circle of the tubular cylinder is provided with an inner circle short ring with a semicircular cross section shape, namely, a semicircular annular gap is arranged from the circle center to the outer circle direction; the axial inclination of the left inner inclined plane is the same as that of the sealing outer inclined plane, and the maximum diameter of the left inner inclined plane is 0.5mm to 3.0mm larger than the minimum diameter of the sealing outer inclined plane.

2. The cable duct orifice plugging device of claim 1, wherein the left end of the inner circle of said rubber sealing tubular cylinder is provided with a radially outwardly convex sealing ring having a semicircular cross-sectional shape.

3. The cable duct hole plugging device according to claim 1 or 2, wherein said left end cap and said right end cap are both semi-circular combined structures, i.e. a whole circle is combined by two rigid semi-circular rings; and a notch penetrating through the whole axial direction is arranged on the pipe wall of the rubber sealing tubular cylinder.