CN113922317B - Power transmission cable leading-in ground pipe plugging device - Google Patents
Power transmission cable leading-in ground pipe plugging device Download PDFInfo
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- CN113922317B CN113922317B CN202110936378.2A CN202110936378A CN113922317B CN 113922317 B CN113922317 B CN 113922317B CN 202110936378 A CN202110936378 A CN 202110936378A CN 113922317 B CN113922317 B CN 113922317B
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- hole
- ground pipe
- shell
- power transmission
- transmission cable
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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
- H02G9/00—Installations of electric cables or lines in or on the ground or water
- H02G9/06—Installations of electric cables or lines in or on the ground or water in underground tubes or conduits; Tubes or conduits therefor
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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
- H02G15/00—Cable fittings
- H02G15/013—Sealing means for cable inlets
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The invention discloses a power transmission cable lead-in ground pipe plugging device, which comprises a shell and a fixed ring, wherein the top of the shell is provided with a power transmission cable insertion hole, the bottom of the shell is provided with a ground pipe insertion hole, an elastic sealing piece is also arranged in the shell, an air bag is arranged in the sealing piece, the sealing piece is annular and comprises an upper through hole and a lower through hole which are communicated, the upper through hole is connected with the power transmission cable insertion hole, the lower through hole is connected with the ground pipe insertion hole, the inner diameter of the lower through hole is larger than the inner diameter of the upper through hole, a step is formed at the joint of the lower through hole and the upper through hole, and an extrusion part is arranged at the step; the fixed ring is fixed on the ground pipe, the fixed ring is provided with a bolt, and the shell is provided with a screw hole matched with the bolt; the top of the ground pipe is extruded to the extrusion part by screwing the bolt, so that the volume of the air bag is reduced, and the upper through hole and the power transmission cable and the lower through hole and the ground pipe are tightly contacted to form a seal. The invention has the advantages that: the device has simple structure and convenient operation, and can ensure the tightness of the orifice of the ground pipe for a long time.
Description
Technical Field
The invention relates to a plugging device for a power cable leading-in ground pipe.
Background
In the laying stage, certain areas are erected on high-altitude electric poles, and certain areas need to walk underground pipelines, when the electric poles enter the underground pipelines from the high-altitude electric poles, ground pipe guiding is arranged beside the high-altitude electric poles, and the electric cables penetrate through the ground pipes. In order to facilitate the penetration of the power cable, the pipe diameter of the ground pipe is generally larger than that of the power cable, and if the pipe orifice is not closed after the penetration of the power cable, small animals or rainwater can enter the ground pipe to cause water accumulation in the ground pipe or other potential safety hazards. At present, plasticine is adopted for plugging, and is easy to air-dry in the outdoor environment, so that the plasticine falls off and fails after cracking.
Disclosure of Invention
The invention aims to provide a power transmission cable leading-in ground pipe plugging device, which can effectively solve the problem that the existing ground pipe inlet plugging is easy to fail.
In order to solve the technical problems, the invention is realized by the following technical scheme: the power transmission cable leading-in ground pipe plugging device comprises a shell and a fixed ring, wherein the top of the shell is provided with a power transmission cable inserting hole, the bottom of the shell is provided with a ground pipe inserting hole, an elastic sealing piece is further arranged in the shell, an air bag is arranged in the sealing piece, the sealing piece is annular and comprises an upper through hole and a lower through hole which are communicated, the upper through hole is connected with the power transmission cable inserting hole, the lower through hole is connected with the ground pipe inserting hole, the inner diameter of the lower through hole is larger than that of the upper through hole, a step is formed at the joint of the lower through hole and the upper through hole, and an extrusion part is arranged at the step;
the fixed ring is fixed on the ground pipe, a bolt is arranged on the fixed ring, and a screw hole matched with the bolt is arranged on the shell;
the top of the ground pipe is extruded to the extrusion part by screwing the bolt, so that the volume of the air bag is reduced, and the upper through hole and the power transmission cable and the lower through hole and the ground pipe are tightly contacted to form a seal.
Preferably, a plurality of first convex rings coaxial with the upper through hole are arranged on the inner wall of the upper through hole, and a plurality of seals are formed between the power transmission cable and the sealing element after being inserted through the plurality of first convex rings, so that the sealing performance is improved.
Preferably, a plurality of second convex rings coaxial with the lower through hole are arranged on the inner wall of the lower through hole, and a plurality of seals are formed between the second convex rings and the side wall of the inserted ground pipe to ensure tightness.
Preferably, the extrusion part is made of hard materials, the cross section of the extrusion part is of a door-shaped structure with a downward opening, the contact area between the extrusion part of the hard materials and the air bag is increased, and enough pressure is generated after the extrusion part is extruded by the ground pipe, so that enough sealing pressure is formed among the sealing element, the power transmission cable and the ground pipe.
Preferably, the fixed ring is the staple bolt, be equipped with first fixed block on the lateral wall of fixed ring, it has the fixed orifices that lets the bolt pass to open on the first fixed block, be equipped with the second fixed block on the lateral wall of shell, the screw setting is on the second fixed block, staple bolt can be fastened with ground pipe fixed connection, produces sufficient pressure extrusion gasbag when letting the bolt screw up.
Compared with the prior art, the invention has the advantages that: the sealing element is sealed with the inserted power transmission cable and the ground pipe, the problem that the existing rubber clay is adopted for sealing is solved, the rigidity of the whole sealing device is guaranteed by the shell, external impact is resisted, the upper through hole is attached to the power transmission cable, the lower through hole is attached to the outer wall of the ground pipe, after the ground pipe is inserted, the space between the shell and the fixing ring is shortened by the bolts, the top of the ground pipe is propped against the extrusion part, the air bag is extruded, the tightness between the sealing element and the power transmission cable and the ground pipe is increased through the change of air pressure in the air bag, and therefore rainwater or small animals are prevented from entering the ground pipe. The device has simple structure and convenient operation, and can ensure the tightness of the orifice of the ground pipe for a long time.
Drawings
Fig. 1 is a schematic structural view of a power cable-introduced ground pipe plugging device according to the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Referring to fig. 1, the embodiment of the power transmission cable-introduced ground pipe plugging device comprises a shell 1 and a fixed ring 2, wherein a power transmission cable insertion hole is formed in the top of the shell 1, a ground pipe insertion hole is formed in the bottom of the shell 1, an elastic sealing element 3 is further arranged in the shell 1, the sealing element 3 is made of elastic rubber, an air bag 4 is arranged in the sealing element 3, the sealing element 3 is annular and comprises an upper through hole 5 and a lower through hole 6 which are communicated, the upper through hole 5 is connected with the power transmission cable insertion hole, the lower through hole 6 is connected with the ground pipe insertion hole, the inner diameter of the lower through hole 6 is larger than that of the upper through hole 5, a step is formed at the joint of the lower through hole 6 and the upper through hole 5, and an extrusion part 7 is arranged at the step;
the fixed ring 2 is fixed on the ground pipe, the fixed ring 2 is provided with a bolt 8, and the shell is provided with a screw hole matched with the bolt 8;
the top of the ground pipe is pressed against the pressing part 7 by tightening the bolts 8, so that the volume of the air bag 4 is reduced, and the upper through hole 5 is tightly contacted with the power transmission cable, and the lower through hole 6 is tightly contacted with the ground pipe to form a seal.
The rigidity of whole plugging device has been guaranteed to casing 1, resists external impact, and the upper through-hole 5 and the laminating of power transmission cable wherein, lower through-hole 6 and the laminating of ground pipe outer wall, after the ground pipe inserts, shorten the interval between casing 1 and the solid fixed ring 2 with bolt 8, make ground pipe top withstand extrusion part 7, extrude gasbag 4, increase the airtight between sealing member 3 and power transmission cable and the ground pipe through the change of the internal atmospheric pressure of gasbag 4 to guarantee that rainwater or toy can not enter into in the ground pipe.
The upper through hole 5 and the power transmission cable, the lower through hole 6 and the ground pipe need to form tight contact, and interference fit can be adopted, of course, in order to prevent that interference fit from failing after the time is long, in order to further strengthen the airtight between power transmission cable and the upper through hole 5, be equipped with a plurality of first bulge loops 9 coaxial with the upper through hole 5 on the inner wall of upper through hole 5, be equipped with a plurality of second bulge loops 10 coaxial with the lower through hole 6 on the inner wall of lower through hole 6, through first bulge loop 9 and second bulge loop 10, form multichannel sealing, promote sealing performance.
The extrusion part 7 is made of hard materials, such as hard plastic, and the cross section of the extrusion part 7 is in a door-shaped structure with a downward opening, so that after the ground pipe is inserted into the extrusion part 7, the contact area between the extrusion part 7 and the air bag 4 is increased, enough air pressure is generated, and high tightness is maintained.
The fixing ring 2 can be a hoop or other elements capable of being fastened and fixed on the surface of the ground pipe, the outer side wall of the fixing ring 2 is provided with a first fixing block 11, the first fixing block 11 is provided with a fixing hole for the bolt 8 to pass through, the outer side wall of the shell is provided with a second fixing block 12, and the screw hole is arranged on the second fixing block 12.
When the novel ground pipe is used, the fixing ring 2 is fixed on the surface of the ground pipe, the casing 1 is sleeved on the ground pipe, the ground pipe penetrates through the lower through hole 6 and stretches into the casing 1, the top of the ground pipe is propped against the extrusion part 7, a certain adjustment gap is kept between the fixing ring 2 and the casing 1, then the power transmission cable is inserted from the upper through hole 5 and then penetrates into the ground pipe, after the power transmission cable is threaded, the bolt 8 is screwed, the distance between the fixing ring 2 and the casing 1 is shortened, the extrusion part 7 is extruded by the top of the ground pipe, the space of the air bag 4 is reduced by the extrusion part 7, so that the pressure in the air bag 4 is increased, the power transmission cable is extruded by the first convex ring 9, the ground pipe is extruded by the second convex ring 10, a plurality of seals are formed, and small animals or rainwater cannot enter the ground pipe, and the seals are completed.
The above embodiments are merely illustrative embodiments of the present invention, but the technical features of the present invention are not limited thereto, and any changes or modifications made by those skilled in the art within the scope of the present invention are included in the scope of the present invention.
Claims (5)
1. Power transmission cable introduces ground pipe plugging device, its characterized in that: the novel electric cable fixing device comprises a shell (1) and a fixing ring (2), wherein a power cable inserting hole is formed in the top of the shell (1), a ground pipe inserting hole is formed in the bottom of the shell (1), an elastic sealing piece (3) is further arranged in the shell (1), an air bag (4) is arranged in the sealing piece (3), the sealing piece (3) is annular, the sealing piece (3) comprises an upper through hole (5) and a lower through hole (6) which are communicated, the upper through hole (5) is connected with the power cable inserting hole, the lower through hole (6) is connected with the ground pipe inserting hole, the inner diameter of the lower through hole (6) is larger than that of the upper through hole (5), a step is formed at the joint of the lower through hole (6) and the upper through hole (5), and an extrusion part (7) is arranged at the step;
the fixed ring (2) is fixed on the ground pipe, the fixed ring (2) is provided with a bolt (8), and the shell (1) is provided with a screw hole matched with the bolt (8);
the top of the ground pipe is pressed and extruded to form the extruding part (7) by screwing the bolt (8), so that the volume of the air bag (4) is reduced, and the upper through hole (5) and the power transmission cable and the lower through hole (6) and the ground pipe are tightly contacted to form a seal.
2. The power cable entry ground pipe plugging device of claim 1, wherein: the inner wall of the upper through hole (5) is provided with a plurality of first convex rings (9) coaxial with the upper through hole (5).
3. The power cable entry ground pipe plugging device of claim 1, wherein: the inner wall of the lower through hole (6) is provided with a plurality of second convex rings (10) coaxial with the lower through hole (6).
4. The power cable entry ground pipe plugging device of claim 1, wherein: the extrusion part (7) is made of hard materials, and the cross section of the extrusion part (7) is of a door-shaped structure with a downward opening.
5. The power cable entry ground pipe plugging device of claim 1, wherein: the fixing ring (2) is a hoop, a first fixing block (11) is arranged on the outer side wall of the fixing ring (2), a fixing hole for a bolt (8) to pass through is formed in the first fixing block (11), a second fixing block (12) is arranged on the outer side wall of the shell (1), and the screw hole is formed in the second fixing block (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110936378.2A CN113922317B (en) | 2021-08-16 | 2021-08-16 | Power transmission cable leading-in ground pipe plugging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110936378.2A CN113922317B (en) | 2021-08-16 | 2021-08-16 | Power transmission cable leading-in ground pipe plugging device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113922317A CN113922317A (en) | 2022-01-11 |
| CN113922317B true CN113922317B (en) | 2023-04-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110936378.2A Active CN113922317B (en) | 2021-08-16 | 2021-08-16 | Power transmission cable leading-in ground pipe plugging device |
Country Status (1)
| Country | Link |
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| CN (1) | CN113922317B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011045166A (en) * | 2009-08-19 | 2011-03-03 | Ichimatsu Denki Koji Kk | Wire insertion device |
| CN105576593A (en) * | 2016-01-14 | 2016-05-11 | 国网浙江省电力公司温州供电公司 | Grounding box capable of moisture prevention |
| CN212380871U (en) * | 2020-04-24 | 2021-01-19 | 浙江集弘电气有限公司 | Improved cable tube plugging device |
| CN213542267U (en) * | 2020-10-13 | 2021-06-25 | 昕诺飞控股有限公司 | Street lamp |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108710183A (en) * | 2018-05-20 | 2018-10-26 | 新能量科技股份有限公司 | A kind of open air ADSS optical cables installation plugging device |
| CN210350707U (en) * | 2019-08-26 | 2020-04-17 | 江苏瀚网智能科技有限公司 | Security protection intelligent network wiring case |
| CN211209205U (en) * | 2019-09-09 | 2020-08-07 | 中国石油天然气股份有限公司 | Threading pipe sealing joint |
| CN112072355B (en) * | 2020-09-14 | 2021-12-07 | 台州市路桥立信涂装机械制造厂 | Safety plug with anti-electric spark effect |
| CN213585110U (en) * | 2020-11-06 | 2021-06-29 | 杭州齐立电力科技有限公司 | Pipeline plugging device |
-
2021
- 2021-08-16 CN CN202110936378.2A patent/CN113922317B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011045166A (en) * | 2009-08-19 | 2011-03-03 | Ichimatsu Denki Koji Kk | Wire insertion device |
| CN105576593A (en) * | 2016-01-14 | 2016-05-11 | 国网浙江省电力公司温州供电公司 | Grounding box capable of moisture prevention |
| CN212380871U (en) * | 2020-04-24 | 2021-01-19 | 浙江集弘电气有限公司 | Improved cable tube plugging device |
| CN213542267U (en) * | 2020-10-13 | 2021-06-25 | 昕诺飞控股有限公司 | Street lamp |
Non-Patent Citations (1)
| Title |
|---|
| 王惠英 ; .带压封堵技术在大孔径管线上的应用.石油化工技术与经济.第26卷(第01期),第41-43页. * |
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| CN113922317A (en) | 2022-01-11 |
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