CN112968403A - Cable duct hole plugging device - Google Patents

Cable duct hole plugging device Download PDF

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Publication number
CN112968403A
CN112968403A CN202110413487.6A CN202110413487A CN112968403A CN 112968403 A CN112968403 A CN 112968403A CN 202110413487 A CN202110413487 A CN 202110413487A CN 112968403 A CN112968403 A CN 112968403A
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China
Prior art keywords
slope
tubular cylinder
circle
sealing
seal
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CN202110413487.6A
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Chinese (zh)
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高茁力
陈其斌
陈其建
黄云
冯景龙
陈家英
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Chongqing Hongfei Electric Co ltd
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Chongqing Hua Hong Power Equipment Co ltd
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Priority to CN202110413487.6A priority Critical patent/CN112968403A/en
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
    • H02G3/0406—Details thereof
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G15/00—Cable fittings
    • H02G15/013—Sealing means for cable inlets

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
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Abstract

为解决现有技术电缆管道孔封堵装置存在着封堵性能受橡胶弹性变形性能的影响，其封堵强度、封堵范围和耐久性都较为有限等问题，本发明提出一种电缆管道孔封堵装置，包括：左端盖、右端盖和橡胶密封；所述左端盖为刚性管状柱体，其管状柱体内圆右端设置有从左至右直径逐渐变大的左内斜面；所述右端盖为刚性管状柱体，其管状柱体内圆左端设置有从左至右直径逐渐变小的右内斜面；所述橡胶密封为弹性管状柱体，其管状柱体的外圆左端设置有从左至右直径逐渐变大的密封左外斜面，其管状柱体的外圆右端设置有从左至右直径逐渐变小的密封右外斜面。本发明电的有益技术效果是橡胶密封的封堵强度、封堵范围和耐久性都有所提高。

Figure 202110413487

In order to solve the problems that the plugging performance of the prior art cable duct hole plugging device is affected by the elastic deformation performance of rubber, and its plugging strength, plugging range and durability are relatively limited, the present invention proposes a cable duct hole sealing device. The plugging device includes: a left end cap, a right end cap and a rubber seal; the left end cap is a rigid tubular cylinder, and the inner round right end of the tubular cylinder is provided with a left inner slope whose diameter gradually increases from left to right; the right end cap is Rigid tubular cylinder, the left end of the inner circle of the tubular cylinder is provided with a right inner slope whose diameter gradually decreases from left to right; the rubber seal is an elastic tubular cylinder, and the left end of the outer circle of the tubular cylinder is provided with a right inner slope from left to right; The sealing left outer inclined surface with a gradually larger diameter is provided with a sealing right outer inclined surface with a gradually smaller diameter from left to right at the right end of the outer circle of the tubular cylinder. The beneficial technical effect of the invention is that the sealing strength, the sealing range and the durability of the rubber seal are improved.

Figure 202110413487

Description

Cable pipeline hole plugging device
Technical Field
The invention relates to a cable pipeline hole plugging technology, in particular to a cable pipeline 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
The invention provides a cable pipeline hole plugging device, aiming at solving the problems that the plugging performance of the cable pipeline hole plugging device in the prior art is influenced by the elastic deformation performance of rubber, the plugging strength, the plugging range and the durability of the cable pipeline hole plugging device are limited, and the like.
The invention relates to a cable pipeline hole plugging device, which comprises: 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 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 excircle of the tubular cylinder is provided with a left outer sealing inclined plane with gradually increased diameter from left to right, and the right end of the excircle of the tubular cylinder is provided with a right outer sealing inclined plane with gradually decreased diameter from left to right; the axial inclination of the left inner inclined plane is the same as that of the left outer inclined plane, and the maximum diameter of the left inner inclined plane is 0.5-3.0 mm larger than that of the left outer inclined plane; the axial inclination of the right inner inclined plane is the same as that of the right outer inclined plane, and the maximum diameter of the right inner inclined plane is 0.5-3.0 mm larger than the minimum diameter of the right outer inclined plane; and the middle part of the inner circle of the rubber sealing 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 outer circle direction.
Furthermore, the left end and the right end of the inner circle of the rubber sealing tubular cylinder are both provided with sealing rings which are inwards convex in the radial direction and have semicircular cross sections.
Furthermore, the maximum diameter of the inner inclined plane of the right end cover is 3.0 to 6.0mm smaller than that of the inner inclined plane of the left end cover.
Furthermore, 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 excircle of the tubular cylinder is provided with a right outer inclined plane with gradually increased 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 left inner sealing inclined plane with gradually reduced diameter from left to right, and the right end of the inner circle of the tubular cylinder is provided with a right inner sealing inclined plane with gradually increased diameter from left to right; the axial inclination of the left outer inclined surface is the same as that of the left inner inclined surface, and the minimum diameter of the left outer inclined surface is 0.5-3.0 mm smaller than the maximum diameter of the left outer inclined surface; the axial inclination of the right outer inclined plane is the same as that of the right inner inclined plane, and the minimum diameter of the right outer inclined plane is 0.5-3.0 mm smaller than the maximum diameter of the right inner inclined plane; and the middle part of the excircle of the rubber sealing tubular cylinder is provided with an excircle notch ring with a semicircular cross section shape, namely a semicircular annular notch is arranged from the excircle to the circle center.
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 cable pipeline hole plugging device has the beneficial technical effect that the plugging strength, the plugging range and the durability of rubber sealing are improved.
Drawings
FIG. 1 is a schematic structural diagram of a cable duct hole plugging device of the present invention;
FIG. 2 is a schematic structural view 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 an end cover of the cable duct hole plugging device of the present invention;
FIG. 4 is a schematic view of a rubber sealing tubular column body wall gap of the cable pipeline hole plugging device of the present invention.
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 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 annular gap, 2-2 is a semicircular sealing ring, and 3 is a right end cap. As can be seen from the figure, the cable duct hole plugging device comprises: 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 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 excircle of the tubular cylinder is provided with a left outer sealing inclined plane with gradually increased diameter from left to right, and the right end of the excircle of the tubular cylinder is provided with a right outer sealing inclined plane with gradually decreased diameter from left to right; the axial inclination of the left inner inclined plane is the same as that of the left outer inclined plane, and the maximum diameter of the left inner inclined plane is 0.5-3.0 mm larger than that of the left outer inclined plane; the axial inclination of the right inner inclined plane is the same as that of the right outer inclined plane, and the maximum diameter of the right inner inclined plane is 0.5-3.0 mm larger than the minimum diameter of the right outer inclined plane; and the middle part of the inner circle of the rubber sealing tubular cylinder is provided with an inner circle default ring 2-1 with a semicircular cross section shape, namely, a semicircular annular gap is arranged from the circle center to the outer circle direction. When the cable pipeline hole plugging device is used specifically, according to the diameter of a cable pipeline hole and the outer diameter of a cable, the cable pipeline hole plugging device is selected, the left end cover, the sealing rubber and the right end cover are sequentially sleeved on the cable and placed at a proper position of the cable pipeline hole, the distance between the left end cover and the right end cover is gradually reduced through the tensioning bolt, and the inner inclined plane of the left end cover gradually enters the left outer sealing inclined plane, and the inner inclined plane of the right end cover gradually enters the right outer sealing inclined plane. Because the axial inclination between the inclined plane is two liang the same, and the end cover is rigidity, rubber seal is elasticity, and the interior inclined plane of end cover will extrude the left and right both ends of rubber seal and all inwards expand gradually, simultaneously, extrude the inside circle ring segment of lacking in the semicircular in rubber seal middle part and outwards expand gradually to realize the shutoff of cable duct hole section.
In order to improve the sealing effect, the left end and the right end of the inner circle of the rubber sealing tubular cylinder are respectively provided with a sealing ring 2-2 which is inwards convex in the radial direction and has a semicircular 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.
In order to prevent the rubber sealing end from being blocked under the extrusion of the inner inclined plane of the end cover, the semicircular inner circular segment ring part at the middle part of the rubber sealing is not protruded in place, and the minimum diameter of the inner inclined plane of the right end cover is 3.0-6.0 mm smaller than that of the inner inclined plane of the left end cover. From this, even when "card dead" phenomenon takes place in left end lid one side, the right-hand member lid still can implement the extrusion to rubber seal to guarantee that the semicircle internal circle in rubber seal middle part lacks ring portion "protrusion" and targets in place, guarantees sealed effect.
Fig. 2 is a schematic structural view of another embodiment 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 annular gap, 2-2 is a semicircular sealing ring, and 3 is a right end cap. It can be seen from the figure that this embodiment is actually a modification of the previous embodiment, and the structure in which the two ends of the rubber seal are expanded inward and the middle part is expanded outward is changed into a structure in which the two ends are expanded outward and the middle part is expanded inward. 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 excircle of the tubular cylinder is provided with a right outer inclined plane with gradually increased 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 left inner sealing inclined plane with gradually reduced diameter from left to right, and the right end of the inner circle of the tubular cylinder is provided with a right inner sealing inclined plane with gradually increased diameter from left to right; the axial inclination of the left outer inclined surface is the same as that of the left inner inclined surface, and the minimum diameter of the left outer inclined surface is 0.5-3.0 mm smaller than the maximum diameter of the left outer inclined surface; the axial inclination of the right outer inclined plane is the same as that of the right inner inclined plane, and the minimum diameter of the right outer inclined plane is 0.5-3.0 mm smaller than the maximum diameter of the right inner inclined plane; and the middle part of the excircle of the rubber sealing tubular cylinder is provided with an excircle notch ring with a semicircular cross section shape, namely a semicircular annular notch is arranged from the excircle to the circle center. Obviously, the working principle of this embodiment is the same as that of the previous embodiment, and the difference is only that the extension directions of the two ends and the middle part are different, and the description is omitted.
Fig. 3 is a schematic view of a semicircular combined structure of an end cover of the cable pipeline hole plugging device, and fig. 4 is a schematic view of a rubber sealing tubular column body pipe wall gap of the cable pipeline hole plugging device. 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 beneficial technical effect of the cable pipeline hole plugging device of the invention is that the plugging strength, the plugging range and the durability of the rubber seal are improved.

Claims (5)

1.一种电缆管道孔封堵装置，其特征在于，该封堵装置包括：左端盖、右端盖和橡胶密封；所述左端盖为刚性管状柱体，其管状柱体内圆右端设置有从左至右直径逐渐变大的左内斜面；所述右端盖为刚性管状柱体，其管状柱体内圆左端设置有从左至右直径逐渐变小的右内斜面；所述橡胶密封为弹性管状柱体，其管状柱体的外圆左端设置有从左至右直径逐渐变大的密封左外斜面，其管状柱体的外圆右端设置有从左至右直径逐渐变小的密封右外斜面；所述左内斜面的轴向斜度与密封左外斜面的轴向斜度相同，且左内斜面的最大直径较密封左外斜面的最小直径大0.5mm至3.0mm；所述右内斜面的轴向斜度与密封右外斜面的轴向斜度相同，且右内斜面的最大直径较密封右外斜面的最小直径大0.5mm至3.0mm；并且，在所述橡胶密封管状柱体内圆的中部设置有横截面形状为半圆形的内圆缺环，即从圆心向外圆方向设置有半圆形环状缺口。1. A cable duct hole plugging device, characterized in that the plugging device comprises: a left end cap, a right end cap and a rubber seal; the left end cap is a rigid tubular The left inner slope whose diameter gradually increases to the right; the right end cap is a rigid tubular cylinder, and the left end of the inner circle of the tubular cylinder is provided with a right inner slope whose diameter gradually decreases from left to right; the rubber seal is an elastic tubular column The left end of the outer circle of the tubular cylinder is provided with a sealed left outer slope whose diameter gradually increases from left to right, and the right end of the outer circle of its tubular column is provided with a sealed right outer slope whose diameter gradually decreases from left to right; The axial slope of the left inner slope is the same as the axial slope of the left outer slope of the seal, and the maximum diameter of the left inner slope is 0.5mm to 3.0mm larger than the minimum diameter of the left outer slope of the seal; The axial slope is the same as the axial slope of the right outer slope of the seal, and the maximum diameter of the right inner slope is 0.5mm to 3.0mm larger than the minimum diameter of the right outer slope of the seal; The middle part is provided with an inner circular missing ring with a cross-sectional shape of a semicircle, that is, a semicircular annular gap is provided from the center of the circle to the outer circular direction. 2.根据权利要求1所述电缆管道孔封堵装置，其特征在于，所述橡胶密封管状柱体内圆的左、右两端均设置有径向内凸的截面形状为半圆的密封环。2 . The cable duct hole plugging device according to claim 1 , wherein the left and right ends of the inner circle of the rubber sealing tubular cylinder are provided with radially inwardly convex sealing rings with a semicircular cross-sectional shape. 3 . 3.根据权利要求1所述电缆管道孔封堵装置，其特征在于，所述右内斜面的最大直径较左内斜面的最大直径小3.0至6.0mm。3 . The cable duct hole plugging device according to claim 1 , wherein the maximum diameter of the right inner slope is smaller than that of the left inner slope by 3.0 to 6.0 mm. 4 . 4.根据权利要求1所述电缆管道孔封堵装置，其特征在于，所述左端盖为刚性管状柱体，其管状柱体外圆右端设置有从左至右直径逐渐变小的左外斜面；所述右端盖为刚性管状柱体，其管状柱体外圆左端设置有从左至右直径逐渐变大的右外斜面；所述橡胶密封为弹性管状柱体，其管状柱体的内圆左端设置有从左至右直径逐渐变小的密封左内斜面，其管状柱体的内圆右端设置有从左至右直径逐渐变大的密封右内斜面；所述左外斜面的轴向斜度与密封左内斜面的轴向斜度相同，且左外斜面的最小直径较密封左外斜面的最大直径小0.5mm至3.0mm；所述右外斜面的轴向斜度与密封右内斜面的轴向斜度相同，且右外斜面的最小直径较密封右内斜面的最大直径小0.5mm至3.0mm；并且，在所述橡胶密封管状柱体外圆的中部设置有横截面形状为半圆形的外圆缺环，即从外圆向圆心方向设置有半圆形环状缺口。4. The cable duct hole plugging device according to claim 1, wherein the left end cap is a rigid tubular cylinder, and the outer right end of the tubular cylinder is provided with a left outer slope whose diameter gradually decreases from left to right; The right end cap is a rigid tubular cylinder, and the left end of the outer circle of the tubular cylinder is provided with a right outer slope whose diameter gradually increases from left to right; the rubber seal is an elastic tubular cylinder, and the left end of the inner circle of the tubular cylinder is provided with There is a sealing left inner bevel whose diameter gradually decreases from left to right, and the right end of the inner circle of the tubular cylinder is provided with a sealing right inner bevel whose diameter gradually increases from left to right; the axial slope of the left outer bevel is the same as The axial slope of the left inner slope of the seal is the same, and the minimum diameter of the left outer slope is smaller than the maximum diameter of the left outer slope of the seal by 0.5mm to 3.0mm; the axial slope of the right outer slope is the same as the axis of the seal right inner slope. The syncline is the same, and the minimum diameter of the right outer slope is 0.5mm to 3.0mm smaller than the maximum diameter of the right inner slope of the seal; The outer circle is missing a ring, that is, a semi-circular annular gap is arranged from the outer circle to the center of the circle. 5.根据权利要求1至4中任意一项所述电缆管道孔封堵装置，其特征在于，所述左端盖和右端盖均为半圆组合结构，即由两个刚性半圆环组合成整圆；所述橡胶密封管状柱体的管壁上设置有贯穿整个轴向的缺口。5. The cable duct hole plugging device according to any one of claims 1 to 4, wherein the left end cap and the right end cap are both semicircular combined structures, that is, two rigid semicircular rings are combined into a full circle ; The tube wall of the rubber-sealed tubular cylinder is provided with a notch that runs through the entire axial direction.
CN202110413487.6A 2021-04-16 2021-04-16 Cable duct hole plugging device Pending CN112968403A (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN207069539U (en) * 2017-07-20 2018-03-02 江西斯耐尔电力科技有限公司 A kind of novel cable pipe plugging device
CN214412142U (en) * 2021-04-16 2021-10-15 重庆宏飞电气有限责任公司 Cable pipeline hole plugging device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN207069539U (en) * 2017-07-20 2018-03-02 江西斯耐尔电力科技有限公司 A kind of novel cable pipe plugging device
CN214412142U (en) * 2021-04-16 2021-10-15 重庆宏飞电气有限责任公司 Cable pipeline hole plugging device

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