CN215185607U - Cable pipeline hole plugging device - Google Patents

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 outer inclined plane with gradually reduced diameter from left to right is arranged at the right end of the outer circle of the tubular cylinder; the right end cover is a rigid tubular cylinder, and the left end of the inner circle of the tubular cylinder is provided with a right inner inclined plane with gradually reduced diameter from left to right; the rubber seal is an elastic tubular cylinder, the left end of the inner circle of the tubular cylinder is provided with a seal inner inclined plane with the diameter gradually reduced from left to right, and the right end of the outer circle of the tubular cylinder is provided with a seal outer inclined plane with the diameter gradually reduced from left to right. The beneficial technical effects of the utility model are that rubber seal does not have hollow form, and its 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 discloses cable conduit 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 outer inclined plane with gradually reduced diameter from left to right is arranged at the right end of the outer circle of the tubular cylinder; the right end cover is a rigid tubular cylinder, and the left end of the inner circle of the tubular cylinder is provided with a right inner inclined plane with gradually reduced diameter from left to right; the rubber seal is an elastic tubular cylinder, the left end of the inner circle of the tubular cylinder is provided with a seal inner inclined plane with the diameter gradually reduced from left to right, and the right end of the outer circle of the tubular cylinder is provided with a seal outer inclined plane with the diameter gradually reduced from left to right; the axial inclination of the left outer inclined plane is the same as that of the sealing inner inclined plane, and the minimum diameter of the left outer inclined plane is 0.5-3.0 mm smaller than the maximum diameter of the sealing inner inclined plane; the axial inclination of the right inner inclined plane is the same as that of the sealing outer inclined plane, and the maximum diameter of the right inner inclined plane is 0.5mm to 3.0mm larger than the minimum diameter of the sealing outer inclined plane.

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

Furthermore, an excircle notch ring is arranged on the right side of the middle part of the excircle of the rubber sealing tubular cylinder, namely an annular notch is arranged from the excircle to the circle center; an inner circle default ring is arranged on the left side of the middle of the inner circle of the rubber sealing tubular cylinder, namely an annular gap is arranged from the circle center to the outer circle direction.

Further, an inner guide ring is arranged at one end of the left end cover with the smallest diameter of the outer inclined plane; an outer guide ring is arranged at one end of the right end cover with the largest diameter of the inner inclined plane; the left end face of the rubber sealing tubular column body is provided with an inner guide ring groove, the radial position and the width of the inner guide ring groove are matched with those of an inner guide ring of the left end cover, and the axial length of the inner guide ring groove is more than twice of that of the inner guide ring; the right end face of the rubber sealing tubular column body is provided with an outer guide ring groove, the radial position and the width of the outer guide ring groove are matched with those of the outer guide ring of the right end cover, and the axial length of the outer guide ring groove is more than twice of that of the outer guide ring; and an inner circle default ring, an outer circle default ring, a sealing inner inclined plane and a sealing outer inclined plane are not arranged on the rubber sealing tubular column body.

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 does not have hollow form, and its shutoff intensity, shutoff scope and durability all improve to some extent.

Drawings

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

fig. 2 is a schematic structural diagram of another embodiment of the cable duct hole plugging device of the present invention;

fig. 3 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. 4 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 cable duct hole plugging device of the present invention will be further described with reference to the accompanying drawings and the following detailed description.

Detailed Description

Fig. 1 is a schematic structural diagram of the cable conduit 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, 2-2 is a segment ring, and 3 is a right end cap. According to the drawing, the utility model discloses cable duct hole plugging device includes: 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 outer inclined plane with gradually reduced diameter from left to right is arranged at the right end of the outer circle of the tubular cylinder; the right end cover 3 is a rigid tubular cylinder, and the left end of the inner circle of the tubular cylinder is provided with a right inner inclined plane with gradually reduced diameter from left to right; the rubber seal 2 is an elastic tubular cylinder, the left end of the inner circle of the tubular cylinder is provided with a seal inner inclined plane with the diameter gradually reduced from left to right, and the right end of the outer circle of the tubular cylinder is provided with a seal outer inclined plane with the diameter gradually reduced from left to right; the axial inclination of the left outer inclined plane is the same as that of the sealing inner inclined plane, and the minimum diameter of the left outer inclined plane is 0.5-3.0 mm smaller than the maximum diameter of the sealing inner inclined plane; the axial inclination of the right inner inclined plane is the same as that of the sealing outer inclined plane, and the maximum diameter of the right 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. The left end cover, the sealing rubber and the right end cover are sequentially sleeved on a cable and are placed in a proper position of a cable pipeline hole, the distance between the left end cover and the right end cover is gradually reduced through the tension bolt, and the left outer inclined plane gradually enters the sealing inner inclined plane and the sealing outer inclined plane gradually enters the right inner inclined plane. Because the axial inclination between the inclined planes is the same two by two, and the end cover is rigid, the rubber seal is elastic, so that the left end of the rubber seal gradually expands outwards, and the right end of the rubber seal gradually expands inwards, thereby realizing the plugging of the hole section of the cable pipeline.

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 right end of the inner circle of the rubber sealing tubular cylinder is provided with a radially inward convex inner 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 surface in contact with the pipeline wall or the surface of the cable, so that the sealing effect is better.

In order to meet the requirement of a larger plugging range, an excircle notch ring is arranged on the right side of the middle part of the excircle of the rubber sealing tubular cylinder, namely an annular notch is arranged from the excircle to the circle center; an inner circle default ring is arranged on the left side of the middle of the inner circle of the rubber sealing tubular cylinder, namely an annular gap is arranged from the circle center to the outer circle direction. The annular gap is arranged, so that the thickness of the connecting part of the part pushed by the end cover at the two ends and the middle fixed part is reduced, the connecting part is easier to elastically deform, the two ends of the rubber seal radially deviate as much as possible, and the plugging range is enlarged.

Fig. 2 is a schematic structural diagram of another embodiment of the cable conduit hole plugging device of the present invention, in which 1 is a left end cap, 1-1 is an inner guide ring, 2 is a rubber seal, 2-1 is a semicircular seal ring, 2-3 is a guide ring groove, 3 is a right end cap, and 3-1 is an outer guide ring. As can be seen from the figure, in order to further improve the sealing effect and enable the left end cover and the right end cover to operate in coordination with the rubber seal, the end with the smallest diameter of the left outer inclined plane is provided with an inner guide ring; an outer guide ring is arranged at one end of the right inner inclined plane with the largest diameter; the left end face of the rubber sealing tubular column body is provided with an inner guide ring groove, the radial position and the width of the inner guide ring groove are matched with those of the inner guide ring at the left end, and the axial length of the inner guide ring groove is more than twice of that of the inner guide ring; the right end face of the rubber sealing tubular column body is provided with an outer guide ring groove which is matched with the outer guide ring of the right end cover in radial position and width, and the axial length of the outer guide ring groove is more than twice of that of the outer guide ring. When the distance between the left end cover and the right end cover is gradually reduced, the inner guide ring and the outer guide ring on the end cover respectively enter the inner guide ring groove and the outer guide ring groove on the rubber seal, and the radial position and the width between the two guide rings are matched, so that a better guide effect is achieved, the left end cover and the right end cover can more stably enter the rubber seal, and the sealing effect and the quality are effectively improved. Obviously, the inner and outer guide ring grooves provided on the rubber sealing tubular cylinder serve to seal the inner and outer rings and the inner and outer slopes in the previous embodiment, and thus, in this embodiment, the rubber sealing tubular cylinder is not provided with the inner ring, the outer ring, the inner slope and the outer slope.

Fig. 3 is the utility model discloses the semicircle integrated configuration schematic diagram of cable duct hole plugging device end cover, and fig. 4 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 of the utility model on a cable, the left end cover and the right end cover are both in a semicircular combined structure, i.e. two rigid semicircular 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. 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 useful technological effect is that rubber seal does not have hollow form, and its shutoff intensity, shutoff scope and durability all improve to some extent.

Claims (5)

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 outer inclined plane with gradually reduced diameter from left to right is arranged at the right end of the outer circle of the tubular cylinder; the right end cover is a rigid tubular cylinder, and the left end of the inner circle of the tubular cylinder is provided with a right inner inclined plane with gradually reduced diameter from left to right; the rubber seal is an elastic tubular cylinder, the left end of the inner circle of the tubular cylinder is provided with a seal inner inclined plane with the diameter gradually reduced from left to right, and the right end of the outer circle of the tubular cylinder is provided with a seal outer inclined plane with the diameter gradually reduced from left to right; the axial inclination of the left outer inclined plane is the same as that of the sealing inner inclined plane, and the minimum diameter of the left outer inclined plane is 0.5-3.0 mm smaller than the maximum diameter of the sealing inner inclined plane; the axial inclination of the right inner inclined plane is the same as that of the sealing outer inclined plane, and the maximum diameter of the right inner inclined plane is 0.5mm to 3.0mm larger than the minimum diameter of the sealing outer inclined plane.

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

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.

4. The cable duct hole plugging device according to claim 3, wherein an outer circle notch ring is arranged on the right side of the middle part of the outer circle of the rubber sealing tubular cylinder, namely an annular notch is arranged from the outer circle to the center of the circle; an inner circle default ring is arranged on the left side of the middle of the inner circle of the rubber sealing tubular cylinder, namely an annular gap is arranged from the circle center to the outer circle direction.

5. The cable duct orifice occluder of claim 3, wherein the end of said left outer ramp having the smallest diameter is provided with an inner guide ring; an outer guide ring is arranged at one end of the right inner inclined plane with the largest diameter; the left end face of the rubber sealing tubular column body is provided with an inner guide ring groove, the radial position and the width of the inner guide ring groove are matched with those of an inner guide ring of the left end cover, and the axial length of the inner guide ring groove is more than twice of that of the inner guide ring; the right end face of the rubber sealing cylinder body is provided with an outer guide ring groove, the radial position and the width of the outer guide ring groove are matched with those of the outer guide ring of the right end cover, and the axial length of the outer guide ring groove is more than twice of that of the outer guide ring; and an inner circle default ring, an outer circle default ring, a sealing inner inclined plane and a sealing outer inclined plane are not arranged on the rubber sealing tubular column body.

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