CN113451981B - Cable end sealing protection structure - Google Patents

Cable end sealing protection structure Download PDF

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Publication number
CN113451981B
CN113451981B CN202110725944.5A CN202110725944A CN113451981B CN 113451981 B CN113451981 B CN 113451981B CN 202110725944 A CN202110725944 A CN 202110725944A CN 113451981 B CN113451981 B CN 113451981B
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CN
China
Prior art keywords
annular extension
cable end
sleeve
cable
protection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202110725944.5A
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Chinese (zh)
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CN113451981A (en
Inventor
邱灿树
杨凯
梁小强
丁瑞蓉
林哲环
李铮
林剑扬
黄奕龙
章楠凯
林新宇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Power Grid Co Ltd
Chaozhou Power Supply Bureau of Guangdong Power Grid Co Ltd
Original Assignee
Guangdong Power Grid Co Ltd
Chaozhou Power Supply Bureau of Guangdong Power Grid Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Guangdong Power Grid Co Ltd, Chaozhou Power Supply Bureau of Guangdong Power Grid Co Ltd filed Critical Guangdong Power Grid Co Ltd
Priority to CN202110725944.5A priority Critical patent/CN113451981B/en
Publication of CN113451981A publication Critical patent/CN113451981A/en
Application granted granted Critical
Publication of CN113451981B publication Critical patent/CN113451981B/en
Active legal-status Critical Current
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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G15/00Cable fittings
    • H02G15/02Cable terminations
    • H02G15/04Cable-end sealings
    • H02G15/043Cable-end sealings with end caps, e.g. sleeve closed at one end
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/14Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables

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  • Cable Accessories (AREA)

Abstract

The invention relates to the technical field of cables and discloses a cable end sealing and protecting structure. This sealed protective structure of cable end includes adapter sleeve and lag, and adapter sleeve is both ends open-ended tubulose, and adapter sleeve's one end is equipped with along with adapter sleeve axis vertically direction on outside first annular extension, adapter sleeve's internal diameter with the external diameter of cable end cooperatees, and the lag is one end opening other end confined tubulose, and the open end of lag is equipped with along the outside second annular extension that extends in the direction with the lag axis vertically, and first annular extension is sealed and can dismantle with the second annular extension and be connected, and the cable end can be inserted in locating adapter sleeve and the lag. The cable end sealing protection structure is simple in structure, convenient to install, good in sealing effect and capable of preventing the cable end from being subjected to leakage or short circuit and the like.

Description

Cable end sealing protection structure
Technical Field
The invention relates to the technical field of cables, in particular to a cable end sealing and protecting structure.
Background
The cable terminal is used for being assembled at the head end and the tail end of a cable line and used for completing a device connected with other electrical equipment, the cable is an electric energy or signal transmission device, the cable terminal integrates water resistance, stress control, shielding and insulation, and the cable terminal has good electrical performance and mechanical performance and can be used for a long time under various severe environmental conditions. The working environment of the cable is very harsh, the cable must withstand the combined actions of electric field, temperature, oxygen, steam moisture under the environmental conditions, and physical causes of mechanical stress, thermal deformation, vibration abrasion fatigue and creep, etc. all the cable must withstand the combined actions of the electric field, temperature, oxygen, steam moisture, and physical causes of mechanical stress, thermal deformation, vibration abrasion fatigue and creep, etc. the cable must have reliable waterproof facilities for the outdoor cable ends because of the special environmental conditions of the use sites, and the opportunity of air intrusion into the box along each joint should be minimized.
Disclosure of Invention
Based on the above, the invention aims to provide a cable end sealing protection structure which has the advantages of simple structure, convenient installation and good sealing effect, and can prevent the cable end from generating the conditions of electric leakage, short circuit and the like.
In order to achieve the above purpose, the invention adopts the following technical scheme:
a cable termination seal protection structure comprising:
the connecting sleeve is in a tubular shape with two open ends, one end of the connecting sleeve is provided with a first annular extension edge which extends outwards along the direction perpendicular to the axis of the connecting sleeve, and the inner diameter of the connecting sleeve is matched with the outer diameter of the cable end;
the protective sleeve is in a tubular shape with one end open and the other end closed, the open end of the protective sleeve is provided with a second annular extension edge which extends outwards in the direction perpendicular to the axis of the protective sleeve, the first annular extension edge is sealed with the second annular extension edge and is detachably connected with the second annular extension edge, and the cable end can be inserted into the connecting sleeve and the protective sleeve.
As a preferred embodiment of the cable end sealing protection structure, the protection sleeve includes:
the protective sleeve is in a tubular shape with two open ends, and one end of the protective sleeve is provided with the second annular extension;
the protective cap is closed at one end and is open at the other end, and the open end of the protective cap is communicated with the other end of the protective sleeve.
As a preferable scheme of the cable end sealing protection structure, a plurality of threaded holes are formed in the first annular extension edge and the second annular extension edge at intervals along the circumferential direction, and the threaded holes in the first annular extension edge and the second annular extension edge are connected through bolts.
As a preferred scheme of the cable end sealing protection structure, the cable end sealing protection structure further comprises:
the elastic cold shrink tube is embedded in the protective sleeve, and the inner diameter of the elastic cold shrink tube in a natural state is smaller than the outer diameter of the cable end.
As a preferable scheme of the cable end sealing protection structure, the elastic cold shrink tube is made of ethylene propylene rubber.
As a preferred scheme of the cable end sealing protection structure, the cable end sealing protection structure further comprises:
the spiral support piece can be embedded in the elastic cold shrink tube, and the outer diameter of the spiral support piece is larger than that of the cable end.
As a preferred embodiment of the cable end seal protection structure, the screw support includes:
the spiral part extends spirally and can extend into the elastic cold-shrinkage pipe so as to enlarge the pipe diameter of the elastic cold-shrinkage pipe;
and one end of the drawing part is connected with one end of the spiral part, the other end of the drawing part penetrates through the spiral part and extends out of the other end of the spiral part, and the drawing part can stretch the spiral part and draw out the elastic cold shrinkage pipe.
As a preferable scheme of the cable end sealing protection structure, the spiral supporting piece is made of plastic materials.
As a preferred scheme of cable end seal protection structure, the connecting sleeve comprises a first inner sheath, a first insulating layer, a first waterproof layer, a second waterproof layer, a first protective layer and a first wear-resistant layer which are sequentially arranged from inside to outside.
As a preferred scheme of the cable end sealing protection structure, the protection sleeve comprises a second inner sheath, a second insulating layer, a third waterproof layer, a fourth waterproof layer, a second protection layer and a second wear-resistant layer which are sequentially arranged from inside to outside.
The beneficial effects of the invention are as follows:
the invention provides a cable end sealing protection structure which comprises a connecting sleeve and a protecting sleeve, wherein the connecting sleeve is in a tubular shape with two ends open, one end of the connecting sleeve extends outwards along a direction vertical to the axis of the connecting sleeve, the protecting sleeve is in a tubular shape with one end open and one end closed, and the open end of the protecting sleeve is provided with a second annular extending edge extending outwards along the direction vertical to the axis of the protecting sleeve. When the cable end is sealed, the connecting sleeve is sleeved outside the cable end, the first extension faces the head of the cable end, and the connecting sleeve is sleeved outside the cable end and cannot slide at will because the inner diameter of the connecting sleeve is matched with the outer diameter of the cable end, so that the protecting sleeve effectively protects the cable body; then with the lag cover at the head of cable end, carried out sealed protection to the cable end, the second is extended limit and first edge butt that extends, then with first edge and second edge that extends link together for connecting sleeve and lag link together, thereby realize with the sealed parcel of cable end. The cable end sealing protection structure is simple in structure, the detachable sealing connection of the first extended edge and the second extended edge of the peripheral device is simple and convenient to operate, the cable end is convenient to seal and wrap, the sealing effect is good, and the cable end is prevented from leaking electricity or being short-circuited.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following description will briefly explain the drawings needed in the description of the embodiments of the present invention, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the contents of the embodiments of the present invention and these drawings without inventive effort for those skilled in the art.
FIG. 1 is an assembly view of a cable end seal shield structure and a cable end provided by an embodiment of the present invention;
FIG. 2 is a schematic structural view of a protective sleeve according to an embodiment of the present invention;
FIG. 3 is a schematic view of a connecting sleeve according to an embodiment of the present invention;
FIG. 4 is a schematic view of a structure of a protecting jacket with a screw support embedded therein according to an embodiment of the present invention;
FIG. 5 is a schematic view of an elastic cold shrink tube with a screw support embedded therein according to an embodiment of the present invention;
FIG. 6 is a schematic view of a screw support provided in an embodiment of the present invention;
FIG. 7 is a view showing the composition of a connecting sleeve according to an embodiment of the present invention;
FIG. 8 is a diagram of the composition of a protective sleeve according to an embodiment of the present invention.
In the figure:
10. a threaded hole; 20. a first annular extension; 30. a second annular extension;
1. a cable end;
2. a connecting sleeve; 21. a first inner sheath; 22. a first insulating layer; 23. a first waterproof layer; 24. a second waterproof layer; 25. a first protective layer; 26. a first wear layer;
3. a protective sleeve; 31. a protective sleeve; 32. a protective cap; 311. a second inner sheath; 312. a second insulating layer; 313. a third waterproof layer; 314. a fourth waterproof layer; 315. a second protective layer; 316. a second wear layer;
4. an elastic cold shrinkage tube;
5. a screw support; 51. a spiral part; 52. a drawing part; 53. a handle part.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present invention are shown in the drawings.
In the description of the present invention, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are orientation or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the invention. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.
Example 1
As shown in fig. 1 to 3, this embodiment provides a cable end seal protection structure, and this cable end seal protection structure includes connecting sleeve 2 and lag 3, and connecting sleeve 2 is both ends open-ended tubulose, and connecting sleeve 2's one end is equipped with along the first annular of outwards extending in the direction perpendicular with connecting sleeve 2 axis 20, connecting sleeve 2's internal diameter with the external diameter of cable end 1 cooperatees, and lag 3 is one end open end other end confined tubulose, and lag 3's open end is equipped with along the second annular of outwards extending in the direction perpendicular with lag 3 axis 30 and extends, and first annular is extended and is sealed and can dismantle with second annular and be connected, and cable end 1 can insert in connecting sleeve 2 and the lag 3. When the cable end 1 is sealed, the connecting sleeve 2 is sleeved outside the cable end 1, the first extension faces the head of the cable end 1, and the inner diameter of the connecting sleeve 2 is matched with the outer diameter of the cable end 1, so that the connecting sleeve 2 is sleeved outside the cable end 1 and cannot slide at will, and the protecting sleeve 3 effectively protects the cable body; then the protective sleeve 3 is sleeved on the head of the cable end 1, the cable end 1 is sealed and protected, the second annular extension 30 is abutted against the first annular extension 20, and then the first annular extension 20 and the second annular extension 30 are connected, so that the connecting sleeve 2 and the protective sleeve 3 are connected, and the cable end 1 is sealed and wrapped. The cable end 1 sealing sleeve is simple in structure, the detachable sealing connection of the peripheral first annular extended edge 20 and the second annular extended edge 30 is simple and convenient to operate, the cable end 1 is convenient to seal and wrap, a sealing space is not required to be reserved in the protective sleeve 3 or the connecting sleeve 2, the sealing effect is good, and the cable end 1 is prevented from being leaked or shorted and the like.
Specifically, a plurality of threaded holes 10 are formed in the first annular extension 20 and the second annular extension 30 at intervals in the circumferential direction, and the threaded holes 10 in the first annular extension 20 and the second annular extension 30 are connected through bolts. The threaded holes 10 on the first annular extension 20 and the second annular extension 30 are aligned, and bolts pass through the threaded holes 10 on the first annular extension 20 and the second annular extension 30 and screw nuts, so that the connecting sleeve 2 and the protective sleeve 3 are connected, and the disassembly and the assembly are convenient. Illustratively, the first annular extension 20 and the second annular extension 30 are respectively provided with four threaded holes 10, and the four threaded holes 10 are spaced and uniformly distributed. Of course, in other embodiments, the number of threaded holes 10 on the first annular rim 20 and the second annular rim 30 may be designed according to actual requirements.
More specifically, the protective cover 3 includes a protective sleeve 31 and a protective cap 32, the protective sleeve 31 is tubular with both ends open, one end of the protective sleeve 31 is provided with the above-mentioned second annular rim 30, one end of the protective cap 32 is closed, the other end is open, and the open end is communicated with the other end of the protective sleeve 31. In this embodiment, the shape of the protective cap 32 can be designed according to practical requirements, for example, a truncated cone shape, etc., so that the protection is stable, and the cable end 1 can be protected and can resist certain external pressure, thereby avoiding the cable end 1 from being damaged. Preferably, the protective sleeve 31 and the protective cap 32 are of an integrally formed structure, so that the installation is convenient, and the sealing effect is good. Of course, in other embodiments, the protective sleeve 31 and the protective cap 32 may be of a split construction.
As shown in fig. 4 to 6, further, the protective sleeve 31 is embedded with an elastic cold shrink tube 4, and the inner diameter of the elastic cold shrink tube 4 in a natural state is smaller than the outer diameter of the cable end 1. When the protective sleeve 3 is installed, the elastic cold shrinkage pipe 4 can tightly wrap the cable end 1, so that the cable end 1 body is sealed and protected, and the sealing and waterproof effects are achieved. Specifically, the elastic cold shrink tube 4 is coated on the cable end 1 through the spiral supporting piece 5, the spiral supporting piece 5 can be embedded in the elastic cold shrink tube 4, the outer diameter of the spiral supporting piece 5 is larger than the outer diameter of the cable end 1, and after the spiral supporting piece 5 is embedded in the elastic cold shrink tube 4, the pipe diameter of the elastic cold shrink tube 4 is enlarged and larger than the outer diameter of the cable end 1, so that the elastic cold shrink tube is conveniently sleeved outside the cable end 1. More specifically, the screw support 5 includes a screw portion 51 and a drawing portion 52, the screw portion 51 is spirally extended and can be extended, the screw portion 51 can be extended into the elastic cold-shrink tube 4 to expand the tube diameter of the elastic cold-shrink tube 4, one end of the drawing portion 52 is connected to one end of the screw portion 51, the other end is provided to penetrate through the screw portion 51 and extends from the other end of the screw portion 51, and the drawing portion 52 can stretch the screw portion 51 and draw out of the elastic cold-shrink tube 4.
The tail end of the drawing part 52 is also connected with a handle part 53, and the handle part 53 is perpendicular to the drawing part 52 and extends outwards, so that an operator can conveniently draw the spiral part 51 away from the elastic cold shrink tube 4 through the handle part 53. Before the protective sleeve 3 is installed, the spiral supporting piece 5 stretches into the elastic cold-shrinkage tube 4, the elastic cold-shrinkage tube 4 is stretched, and the spiral part 51 of the spiral supporting piece 5 extends spirally, so that the spiral supporting piece has supporting force, and the elastic restoring force of the elastic cold-shrinkage tube 4 can not deform the spiral supporting piece 5, so that the handle part 53 stretches out from the first annular extension edge 20; then, the protecting sleeve 3 is sleeved on the head of the cable end 1, the handle 53 is pulled to pull the spiral supporting piece 5 outwards, in the process of exerting force outwards, the spiral portion 51 connected with the pulling portion 52 is driven to start deforming and stretching, and the pulling portion 52 penetrates through the spiral portion 51, so that the spiral portion 51 can be smoothly pulled away from the elastic cold shrink tube 4 layer by layer, the supporting of the spiral supporting piece 5 is omitted, the cable end 1 is tightly wrapped by the elastic cold shrink tube 4 under the action of elastic restoring force, and protection sealing of the cable end 1 is achieved. With the above structure, the cable head 1 can be sealed quickly and effectively.
Preferably, the elastic cold shrink tube 4 is made of ethylene propylene rubber, has good low temperature resistance, rebound resilience and physical and mechanical properties, and simultaneously has the effects of wear resistance and waterproof sealing. More preferably, the elastic cold shrink tube 4 is formed by injection molding.
Preferably, the screw support 5 is made of plastic material, having a certain supporting force and deformation force.
As shown in fig. 6 and 7, the connection sleeve 2 includes a first inner sheath 21, a first insulating layer 22, a first waterproof layer 23, a second waterproof layer 24, a first protective layer 25, and a first abrasion-resistant layer 26, which are sequentially disposed from the inside to the outside. The protective cover 3 comprises a second inner sheath 311, a second insulating layer 312, a third waterproof layer 313, a fourth waterproof layer 314, a second protective layer 315 and a second wear-resistant layer 316 which are sequentially arranged from inside to outside. The first wear-resistant layer 26 and the second wear-resistant layer 316 increase the wear resistance of the connecting sleeve 2 and the protective sleeve 3, thereby improving the service life of the sealing sleeve of the cable end 1; by arranging the first protective layer 25 and the second protective layer 315, abrasion caused by external force on the connecting sleeve 2 and the protective sleeve 3 is avoided, sewage and rainwater are prevented from flowing into the pipeline to cause water carrying operation of the cable and danger, the sewage and the rainwater are prevented from flowing through the pipeline to endanger the operation safety of adjacent inspection wells or substations, and the waterproof performance of the connecting sleeve 2 and the protective sleeve 3 is improved; the first insulating layer 22, the second insulating layer 312, the first inner sheath 21 and the second inner sheath 311 can prevent accidents such as electric leakage, short circuit and even electric shock caused by contact between the electric conductor and the outside, and improve the protection effect on the cable end 1. The connecting sleeve 2 and the protecting sleeve 3 are respectively made of multiple layers of materials, so that the protecting and sealing effect of the cable end sealing and protecting structure on the cable end 1 can be greatly improved.
The layers in this embodiment may be made of conventional materials. The wear-resistant layer may be made of a wear-resistant material such as rubber, the waterproof layer may be made of PVC or other materials, waterproof paint may be coated on the waterproof layer, and the inner sheath may be made of plastic or the like.
The following is the installation process of the cable end 1 sealing sleeve provided by the embodiment:
the connecting sleeve 2 is sleeved on the cable end 1, the first annular extension 20 faces outwards, then the protective sleeve 3 embedded with the spiral supporting piece 5 is sleeved on the head of the cable end 1, the handle 53 is pulled outwards to be pulled away from the spiral supporting piece 5, the elastic cold shrink tube 4 tightly wraps the cable end 1, then the connecting sleeve 2 is pushed to the first annular extension 20 and the second annular extension 30 to be abutted and enable the threaded holes 10 to be aligned, and finally the mounting bolt and the nut are fastened.
Example two
The difference between the cable end sealing protection structure provided in the present embodiment and the cable end sealing protection structure provided in the first embodiment is that:
the first annular extension 20 and the second annular extension 30 are tightly fastened through two semicircular enclasping pieces, specifically, a U-shaped groove is formed in each semicircular enclasping piece, a U-shaped groove opening is arranged towards the circle center of each semicircular enclasping piece, two threaded holes 10 are formed in each first annular extension 20 and each second annular extension 30, the two threaded holes 10 are oppositely formed, and through holes are formed in the U-shaped groove walls at the two ends of each semicircular enclasping piece. The first annular extension 20 and the second annular extension 30 are abutted to align the threaded holes 10, then the two semicircular holding pieces are respectively clamped on the outer sides of the first annular extension 20 and the second annular extension 30, through holes in the two semicircular holding pieces are aligned, the through holes are aligned with the threaded holes 10 in the first annular extension 20 and the second annular extension 30, and finally bolts are installed and nuts are screwed down to realize fastening. Through the structure, the connecting sleeve 2 and the protecting sleeve 3 are connected stably, the sealing effect is good, and the protection and sealing effect on the cable end 1 is improved.
Note that the above is only a preferred embodiment of the present invention and the technical principle applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.

Claims (4)

1. A cable termination seal protection architecture, comprising:
the connecting sleeve (2) is in a tubular shape with two open ends, one end of the connecting sleeve (2) is provided with a first annular extension edge (20) which extends outwards along the direction perpendicular to the axis of the connecting sleeve (2), the inner diameter of the connecting sleeve (2) is matched with the outer diameter of the cable end (1), and the connecting sleeve (2) comprises a first inner sheath (21), a first insulating layer (22), a first waterproof layer (23), a second waterproof layer (24), a first protective layer (25) and a first wear-resistant layer (26) which are sequentially arranged from inside to outside;
the protection sleeve (3) is in a tubular shape with one end open and the other end closed, the open end of the protection sleeve (3) is provided with a second annular extension (30) which extends outwards along the direction perpendicular to the axis of the protection sleeve (3), the first annular extension (20) is sealed and detachably connected with the second annular extension (30), the cable end (1) can be inserted into the connecting sleeve (2) and the protection sleeve (3), the protection sleeve (3) comprises a second inner sheath (311), a second insulating layer (312), a third waterproof layer (313), a fourth waterproof layer (314), a second protective layer (315) and a second abrasion-resistant layer (316) which are sequentially arranged from inside to outside, the protection sleeve (3) comprises a protection sleeve (31) and a protection cap (32), one end of the protection sleeve (31) is in a tubular shape with two ends open, the second annular extension (30) is arranged at one end of the protection cap (32), and the other end of the protection cap (32) is in a circular truncated cone shape with the opening end of the protection sleeve (31) being communicated with the other end of the protection cap (31);
the elastic cold shrinkage pipe (4) is embedded in the protective sleeve (3), and the inner diameter of the elastic cold shrinkage pipe (4) in a natural state is smaller than the outer diameter of the cable end (1);
screw support (5), screw support (5) can inlay and locate in elasticity cold shrink pipe (4), the external diameter of screw support (5) is greater than the external diameter of cable end (1), screw support (5) include:
the spiral part (51) extends spirally and can extend, and the spiral part (51) can extend into the elastic cold-shrinkage pipe (4) so as to enlarge the pipe diameter of the elastic cold-shrinkage pipe (4);
a drawing part (52) with one end connected to one end of the spiral part (51) and the other end penetrating the spiral part (51) and extending from the other end of the spiral part (51), wherein the drawing part (52) can draw the spiral part (51) and draw the elastic cold shrink tube (4);
and a handle portion (53) connected to the end of the drawing portion (52).
2. The cable end sealing and protecting structure according to claim 1, wherein a plurality of threaded holes (10) are formed in the first annular extension (20) and the second annular extension (30) at intervals along the circumferential direction, and the threaded holes (10) in the first annular extension (20) and the second annular extension (30) are connected through bolts.
3. The cable end sealing protection structure according to claim 1, characterized in that the elastic cold shrink tube (4) is made of ethylene propylene rubber.
4. Cable termination sealing protection structure according to claim 1, characterized in that the screw support (5) is made of plastic material.
CN202110725944.5A 2021-06-29 2021-06-29 Cable end sealing protection structure Active CN113451981B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110725944.5A CN113451981B (en) 2021-06-29 2021-06-29 Cable end sealing protection structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110725944.5A CN113451981B (en) 2021-06-29 2021-06-29 Cable end sealing protection structure

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Publication Number Publication Date
CN113451981A CN113451981A (en) 2021-09-28
CN113451981B true CN113451981B (en) 2023-08-11

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104934922A (en) * 2015-06-26 2015-09-23 国网四川省电力公司德阳供电公司 Stable type cable head protective device
CN206332424U (en) * 2016-12-30 2017-07-14 方新利 End waterproof and moistureproof sealing device
CN207926152U (en) * 2018-03-22 2018-09-28 广东电网有限责任公司潮州供电局 A kind of prefabricated terminal instant sealing device
CN210041284U (en) * 2019-08-14 2020-02-07 广东电网有限责任公司 Dampproofing protection device of cable incision
CN110797832A (en) * 2019-11-22 2020-02-14 国网浙江省电力有限公司宁波供电公司 Silicone rubber cold shrinkage type cable head sealing cap
CN112564024A (en) * 2020-12-04 2021-03-26 平高集团有限公司 Cable terminal connecting device for GIS and GIS

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4436198B2 (en) * 2004-07-09 2010-03-24 矢崎総業株式会社 Wire protection cap

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104934922A (en) * 2015-06-26 2015-09-23 国网四川省电力公司德阳供电公司 Stable type cable head protective device
CN206332424U (en) * 2016-12-30 2017-07-14 方新利 End waterproof and moistureproof sealing device
CN207926152U (en) * 2018-03-22 2018-09-28 广东电网有限责任公司潮州供电局 A kind of prefabricated terminal instant sealing device
CN210041284U (en) * 2019-08-14 2020-02-07 广东电网有限责任公司 Dampproofing protection device of cable incision
CN110797832A (en) * 2019-11-22 2020-02-14 国网浙江省电力有限公司宁波供电公司 Silicone rubber cold shrinkage type cable head sealing cap
CN112564024A (en) * 2020-12-04 2021-03-26 平高集团有限公司 Cable terminal connecting device for GIS and GIS

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