CN112018718B - Shock attenuation cable joint for high tension cable - Google Patents
Shock attenuation cable joint for high tension cable Download PDFInfo
- Publication number
- CN112018718B CN112018718B CN202010998022.7A CN202010998022A CN112018718B CN 112018718 B CN112018718 B CN 112018718B CN 202010998022 A CN202010998022 A CN 202010998022A CN 112018718 B CN112018718 B CN 112018718B
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- cable joint
- cable
- outer sheath
- wall
- layer
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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
- H02G15/08—Cable junctions
- H02G15/18—Cable junctions protected by sleeves, e.g. for communication cable
-
- 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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Abstract
The invention discloses a shock-absorbing cable joint for a high-voltage cable, which comprises: the cable joint comprises a cable joint body, an outer layer sheath and an anti-skidding sleeve; the cable joint body is arranged on the inner side of the outer sheath in a penetrating mode, an anti-skidding sleeve is arranged in the middle of the inner side of the outer sheath, a plurality of anti-skidding circular rings are arranged on the inner wall of the anti-skidding sleeve, and the cable joint body penetrates through the anti-skidding sleeve and contacts with the inner wall of the anti-skidding circular rings. This cable joint can further separation external force impact through addding outer sheath, has improved anti-seismic performance, and in order to prevent outer sheath and cable joint body relative slip wearing and tearing cable joint body, has still set up anti-skidding sleeve in the outer sheath, gives the certain damping force of cable joint body through anti-skidding ring to with the firm restriction of cable joint body in outer sheath, further improved cable joint's whole steadiness.
Description
Technical Field
The invention relates to the technical field of power equipment, in particular to a damping cable joint for a high-voltage cable.
Background
At present, with the increasing of the coverage of the power grid, after the cables for connecting the power equipment are laid, in order to enable the cables to become a continuous line, all the sections of the cables need to be connected into a whole, the connection of all the sections of the cables is generally realized through cable connectors, although the existing cable connectors can lock and fix incoming and outgoing lines, the cable connectors are difficult to avoid being subjected to external impact in the actual use environment, the sealing performance of the cable connectors is reduced due to the strong impact, the stability is difficult to guarantee, faults such as short circuit and open circuit are easy to occur due to the damage of the cable connectors, not only the normal power supply is influenced, but also safety accidents such as fire and electric shock are easy to cause.
Therefore, how to provide a cable joint with safety, stability and better shock resistance is a problem that needs to be solved by those skilled in the art.
Disclosure of Invention
In view of this, the invention provides a shock-absorbing cable joint for a high-voltage cable, which blocks external force impact through an outer sheath and prevents a cable joint body from sliding and wearing through an anti-slip sleeve, so that the problems of low stability and poor anti-seismic effect of the conventional cable joint are solved.
In order to achieve the purpose, the invention adopts the following technical scheme:
a shock absorbing cable joint for high voltage cables comprising: the cable joint comprises a cable joint body, an outer layer sheath and an anti-skidding sleeve;
the cable joint body penetrates through the inner side of the outer sheath, an anti-slip sleeve is arranged in the middle of the inner side of the outer sheath, a plurality of anti-slip rings are arranged on the inner wall of the anti-slip sleeve, and the cable joint body penetrates through the anti-slip sleeve and is in contact with the inner wall of each anti-slip ring.
The beneficial effects of the invention are: this cable joint can further separation external shock through addding outer sheath, has improved anti-seismic performance, and in order to prevent outer sheath and cable joint body relative slip wearing and tearing cable joint body, has still set up anti-skidding sleeve in the outer sheath, gives the certain damping force of cable joint body through anti-skidding ring to with the firm restriction of cable joint body in outer sheath, further improved cable joint's whole steadiness.
Furthermore, still be equipped with anti-bending spring in the outer sheath, the opening of outer sheath one end is inside bending type and is formed cyclic annular flange, the inboard of outer sheath is close to the telescopic one end of antiskid is equipped with the snap ring, anti-bending spring one end is supported to on the inside wall of cyclic annular flange, anti-bending spring's the other end support to on the lateral wall of snap ring, the cable joint body wears to locate anti-bending spring's inboard.
According to the invention, the bending-resistant spring is wound on the outer side of the cable joint body, when the cable joint body is bent, the bending-resistant spring applies a reverse force to the cable joint body, so that the cable joint body can be prevented from being damaged by the outer sheath due to frequent bending and excessive bending, and the overall stability of the cable joint is improved.
Furthermore, one side of the outer layer sheath, which is provided with the annular flange, is also provided with a sealing gasket, the outer side wall of the annular flange is fixedly connected with the sealing gasket, and the cable connector body penetrates through the sealing gasket and is in contact with the inner side wall of the sealing gasket.
Furthermore, one side of the outer sheath, which is far away from the side with the annular flange, is further provided with a sealing pad cylinder, one end of the sealing pad cylinder extends into the inner side of the outer sheath and is fixedly connected with the inner side wall of the outer sheath, one end part of the sealing pad cylinder extending into the outer sheath is abutted to the outer wall of the end part of the anti-slip sleeve, the other side of the sealing pad cylinder extends to the outer side of the outer sheath, and the cable joint body penetrates through the sealing pad cylinder and is in contact with the inner wall of the sealing pad cylinder.
The sealing washer and the sealing washer cylinder are arranged mainly for preventing external water from permeating into the cable joint from a gap between the end part of the outer sheath and the outer wall of the cable joint body to influence the service life of the cable joint and improve the overall sealing and waterproof performance of the cable joint.
Further, the cable joint body includes inlayer sheath and joint cable, the inlayer sheath has waterproof cavity, joint cable wears to locate in the waterproof cavity, the waterproof cavity intussuseption is filled with prevents hydrocolloid, the inlayer sheath from interior to exterior includes sealing layer, flame retardant coating, insulating layer and buffer layer in proper order, adjacent adhesive bonding between two-layer.
The inner layer sheath provides another layer of safety guarantee for the joint cable, and the sealing, waterproof, insulating and anti-seismic performance of the joint cable can reach the safe use standard.
Furthermore, the shock-absorbing layer comprises an upper wall, shock-absorbing columns, shock-absorbing particles, elastic filling bodies and a lower wall, the elastic filling bodies and the shock-absorbing particles are filled between the upper wall and the lower wall, and the shock-absorbing columns are arranged on the inner walls of the upper wall and the lower wall at equal intervals.
Furthermore, the damping particles are of a core-shell structure with polymethyl methacrylate as a core and polystyrene as a shell.
The shock-absorbing layer can promote the holistic anti-seismic performance of cable joint in the at utmost, avoids causing the problem that the cable joint sealing waterproof performance descends and causes the potential safety hazard because of external force strikes.
Further, the fire-proof layer is a flame-retardant sponge. The flame-retardant sponge has higher fireproof performance and lighter weight, and is more suitable for being used as a fireproof layer of an inner layer sheath.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic view of an overall structure of a shock-absorbing cable joint for a high-voltage cable according to the present invention;
FIG. 2 is a schematic structural view of a cable connector body according to an embodiment of the present invention;
FIG. 3 is a schematic view of a layer structure of a shock-absorbing layer according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, an embodiment of the present invention discloses a shock-absorbing cable joint for a high-voltage cable, including: the cable joint comprises a cable joint body 1, an outer layer sheath 2 and an anti-skidding sleeve 3;
the cable joint body 1 is arranged on the inner side of the outer sheath 2 in a penetrating mode, the middle of the inner side of the outer sheath 2 is provided with an anti-skidding sleeve 3, the inner wall of the anti-skidding sleeve 3 is provided with a plurality of anti-skidding circular rings 4, and the cable joint body 1 penetrates through the anti-skidding sleeve 3 and contacts with the inner wall of the anti-skidding circular rings 4.
Preferably, the outer sheath 2 is further provided with a bending-resistant spring 5, an opening at one end of the outer sheath 2 is bent inward to form an annular flange 21, a snap ring 6 is arranged at one end of the inner side of the outer sheath 2 close to the anti-slip sleeve 3, one end of the bending-resistant spring 5 is supported against the inner side wall of the annular flange 21, the other end of the bending-resistant spring 5 is supported against the side wall of the snap ring 6, and the cable connector body 1 is arranged on the inner side of the bending-resistant spring 5 in a penetrating manner.
The bending-resistant spring 5 is clamped in the outer sheath 2 through the annular flange 21 and the snap ring 6, and the caliber of the bending-resistant spring is preferably set to be slightly larger than the diameter of the cable connector body 1, so that the cable connector body 1 can be contacted with the inner wall of the bending-resistant spring 5 when penetrating through the inner side of the bending-resistant spring 5, thereby achieving better bending resistance.
In this embodiment, the outer sheath 2 where the bending springs 5 are located is olive-shaped to protrude outwards, thereby leaving enough room for the bending springs 5 to deform.
Preferably, the side of the outer sheath 2 having the annular flange 21 is further provided with a sealing gasket 7, the outer side wall of the annular flange 21 is fixedly connected with the sealing gasket 7, and the cable connector body 1 passes through the sealing gasket 7 and contacts with the inner side wall of the sealing gasket 7.
Preferably, one side that outer sheath 2 kept away from and have cyclic annular flange 21 still is equipped with a sealing pad section of thick bamboo 8, the one end of a sealing pad section of thick bamboo 8 stretch into outer sheath 2 the inboard and with outer sheath 2 inside wall fixed connection, and a sealing pad section of thick bamboo 8 stretch into outer sheath 2 one end tip and support to the tip outer wall of antiskid sleeve 3, the other side of a sealing pad section of thick bamboo 8 extends to the outer sheath 2 outside, cable joint body 1 passes a sealing pad section of thick bamboo 8 and contacts with the inner wall of a sealing pad section of thick bamboo 8.
In this embodiment, the sealing washer 7 and the sealing washer cylinder 8 are both made of silica gel, the silica gel washer 7 is fixed to the outer side wall of the annular flange 21 in an adhesive manner, and similarly, the sealing washer cylinder 8 is fixed to the inner wall of the outer sheath 2 in an adhesive manner.
Specifically, referring to fig. 2, the cable joint body 1 includes an inner layer sheath 11 and a joint cable 12, the inner layer sheath 11 has a waterproof cavity 13, the joint cable 12 is inserted into the waterproof cavity 13, the waterproof cavity 13 is filled with a waterproof colloid, the inner layer sheath 11 sequentially includes a sealing layer 111, a fireproof layer 112, an insulating layer 113 and a damping layer 114 from inside to outside, and two adjacent layers are adhesively connected.
Cable joint body 1 adopts the form of traditional 12 outsourcing protective sheaths of joint cable, forms safe firm joint through the protective sheath is sealed, and the setting of the 11 layer structures of inlayer sheath of focus on in this embodiment has guaranteed cable joint body 1's shock attenuation performance through the setting of layer structure.
Specifically, referring to fig. 3, the shock absorbing layer 114 includes an upper wall 1141, shock absorbing columns 1142, shock absorbing particles 1143, an elastic filling body 1144, and a lower wall 1145, the elastic filling body 1144 and the shock absorbing particles 1143 are filled between the upper wall 1141 and the lower wall 1145, and the shock absorbing columns 1142 are arranged on inner walls of the upper wall 1141 and the lower wall 1145 at equal intervals.
The shock-absorbing layer 114 can improve the shock-resistant performance of the cable joint body 1 to a great extent, and the overall stability of the cable joint is improved.
Specifically, the vibration absorbing particles 1143 are core-shell structures of polystyrene, specifically, polymethyl methacrylate is used as a core, and polystyrene is used as a shell.
The shock attenuation post is made by fluoroelastomer in this embodiment, and the shock attenuation post is like individual miniature spring, and when receiving external force and assault, the shock attenuation post atress compression, external force disappears, the shock attenuation post reconversion.
When the shock absorption column is impacted by external force, the shock absorption particles and the elastic filling bodies are deformed, but the shock absorption particle cores are rigid polymethyl methacrylate spheres, so that only flexible polystyrene of shell parts is deformed, and meanwhile, the shock absorption gaps are filled with no substances around the shock absorption columns, and the elastic filling bodies are filled around the shock absorption particles, although the shock absorption particles are staggered from layer to layer and can be mutually extruded, the deformation rate of the shock absorption particles is still much smaller than that of the shock absorption columns. Therefore, when the cable joint is impacted by external force, the impact force reaching the center is very small through the shock absorption of the upper wall layer, the shock absorption particles, the elastic filling bodies, the shock absorption columns and the lower wall layer, so that the impact on the joint cable at the center is avoided.
In this embodiment, the flame-retardant layer 112 is made of flame-retardant sponge. Not only can play a good flame retardant role, but also ensures that the inner layer sheath 11 is light enough as far as possible.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. A shock-absorbing cable joint for a high-voltage cable, comprising: the cable joint comprises a cable joint body (1), an outer layer sheath (2) and an anti-skidding sleeve (3);
the cable joint body (1) comprises an inner layer sheath (11) and a joint cable (12), wherein the inner layer sheath (11) sequentially comprises a sealing layer (111), a fireproof layer (112), an insulating layer (113) and a damping layer (114) from inside to outside, and the two adjacent layers are connected through gluing;
the shock absorption layer (114) comprises an upper layer wall (1141), shock absorption columns (1142), shock absorption particles (1143), an elastic filling body (1144) and a lower layer wall (1145), the elastic filling body (1144) and the shock absorption particles (1143) are filled between the upper layer wall (1141) and the lower layer wall (1145), and the shock absorption columns (1142) are arranged on the inner walls of the upper layer wall (1141) and the lower layer wall (1145) at equal intervals;
the cable connector body (1) penetrates through the inner side of the outer sheath (2), the anti-skidding sleeve (3) is arranged in the middle of the inner side of the outer sheath (2), a plurality of anti-skidding circular rings (4) are arranged on the inner wall of the anti-skidding sleeve (3), and the cable connector body (1) penetrates through the anti-skidding sleeve (3) and is in contact with the inner wall of the anti-skidding circular ring (4);
the cable joint is characterized in that an anti-bending spring (5) is further arranged in the outer sheath (2), an opening at one end of the outer sheath (2) is bent inwards to form an annular flange (21), a clamping ring (6) is arranged at one end, close to the anti-skidding sleeve (3), of the inner side of the outer sheath (2), one end of the anti-bending spring (5) is abutted to the inner side wall of the annular flange (21), the other end of the anti-bending spring (5) is abutted to the side wall of the clamping ring (6), the cable joint body (1) is arranged on the inner side of the anti-bending spring (5) in a penetrating mode, and the outer sheath (2) where the anti-bending spring (5) is located protrudes outwards to form an olive shape;
one side that outer sheath (2) kept away from to have cyclic annular flange (21) still is equipped with a sealing pad section of thick bamboo (8), the one end of a sealing pad section of thick bamboo (8) stretch into the inboard of outer sheath (2) and with the inside wall fixed connection of outer sheath (2), just a sealing pad section of thick bamboo (8) stretch into the one end tip of outer sheath (2) supports to the tip outer wall of antiskid sleeve (3), another side of a sealing pad section of thick bamboo (8) extends to the outer sheath (2) outside, cable joint body (1) passes a sealing pad section of thick bamboo (8) and with the inner wall contact of a sealing pad section of thick bamboo (8).
2. The shock-absorbing cable joint for the high-voltage cable is characterized in that a sealing gasket (7) is further arranged on one side, provided with the annular flange (21), of the outer-layer sheath (2), the outer side wall of the annular flange (21) is fixedly connected with the sealing gasket (7), and the cable joint body (1) penetrates through the sealing gasket (7) and is in contact with the inner side wall of the sealing gasket (7).
3. The shock-absorbing cable joint for the high-voltage cable according to claim 1, wherein the inner sheath (11) has a waterproof cavity (13), the joint cable (12) is inserted into the waterproof cavity (13), and the waterproof cavity (13) is filled with waterproof colloid.
4. The joint of claim 1, wherein the vibration absorbing particles (1143) have a core-shell structure with polymethyl methacrylate as a core and polystyrene as a shell.
5. The shock-absorbing cable joint for the high-voltage cable according to claim 1, wherein the fire-retardant layer (112) is a flame-retardant sponge.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010998022.7A CN112018718B (en) | 2020-09-21 | 2020-09-21 | Shock attenuation cable joint for high tension cable |
| AU2020102675A AU2020102675A4 (en) | 2020-09-21 | 2020-10-12 | Shock absorption cable joint for high-voltage cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010998022.7A CN112018718B (en) | 2020-09-21 | 2020-09-21 | Shock attenuation cable joint for high tension cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112018718A CN112018718A (en) | 2020-12-01 |
| CN112018718B true CN112018718B (en) | 2022-06-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010998022.7A Active CN112018718B (en) | 2020-09-21 | 2020-09-21 | Shock attenuation cable joint for high tension cable |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112018718B (en) |
| AU (1) | AU2020102675A4 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117895418B (en) * | 2024-03-14 | 2024-05-31 | 山东万博科技股份有限公司 | Communication cable joint protector |
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| CN101053134A (en) * | 2004-10-27 | 2007-10-10 | 普雷斯曼电缆及系统能源有限公司 | Method and device for coating the junction area between at least two elongated elements in particular between electric cables |
| CN103633590A (en) * | 2013-12-11 | 2014-03-12 | 倍仕得电气（杭州）有限公司 | Cable gland and electric device |
| CN104993444A (en) * | 2015-06-30 | 2015-10-21 | 张家港金海港电线电缆有限公司 | Rapid cable connector |
| CN205212402U (en) * | 2015-11-12 | 2016-05-04 | 安徽伊法拉电力科技有限公司 | Novel cable joint protective sheath |
| CN107591772A (en) * | 2017-09-26 | 2018-01-16 | 国网山东省电力公司临沂供电公司 | A kind of high-tension cable damping cable connector |
| CN107733168A (en) * | 2017-11-06 | 2018-02-23 | 闻海强 | A kind of power generator cable anti-drop device |
| CN209756546U (en) * | 2019-04-18 | 2019-12-10 | 黄政 | Pen holder clamping assembly capable of self-adapting to diameter of pen core |
| CN211183355U (en) * | 2020-01-19 | 2020-08-04 | 陈三京 | Joint protector that communication cable used |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4108901C2 (en) * | 1991-03-19 | 1994-12-01 | Reinhold Barlian | Device for connecting and connecting an electrical line |
| CN108134364A (en) * | 2016-05-12 | 2018-06-08 | 金华市秸和环保技术咨询有限公司 | A kind of power cable connector |
| CN107824317A (en) * | 2017-11-14 | 2018-03-23 | 淮安佳禾兴农业生物科技有限公司 | A kind of grinding device for feed additive raw materials |
| CN210570884U (en) * | 2019-12-09 | 2020-05-19 | 河北鑫亿华仪表有限公司 | Split external hanging type intelligent water meter |
-
2020
- 2020-09-21 CN CN202010998022.7A patent/CN112018718B/en active Active
- 2020-10-12 AU AU2020102675A patent/AU2020102675A4/en not_active Ceased
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101053134A (en) * | 2004-10-27 | 2007-10-10 | 普雷斯曼电缆及系统能源有限公司 | Method and device for coating the junction area between at least two elongated elements in particular between electric cables |
| CN103633590A (en) * | 2013-12-11 | 2014-03-12 | 倍仕得电气（杭州）有限公司 | Cable gland and electric device |
| CN104993444A (en) * | 2015-06-30 | 2015-10-21 | 张家港金海港电线电缆有限公司 | Rapid cable connector |
| CN205212402U (en) * | 2015-11-12 | 2016-05-04 | 安徽伊法拉电力科技有限公司 | Novel cable joint protective sheath |
| CN107591772A (en) * | 2017-09-26 | 2018-01-16 | 国网山东省电力公司临沂供电公司 | A kind of high-tension cable damping cable connector |
| CN107733168A (en) * | 2017-11-06 | 2018-02-23 | 闻海强 | A kind of power generator cable anti-drop device |
| CN209756546U (en) * | 2019-04-18 | 2019-12-10 | 黄政 | Pen holder clamping assembly capable of self-adapting to diameter of pen core |
| CN211183355U (en) * | 2020-01-19 | 2020-08-04 | 陈三京 | Joint protector that communication cable used |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112018718A (en) | 2020-12-01 |
| AU2020102675A4 (en) | 2020-12-03 |
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