CN110912070A - Cable joint for power engineering - Google Patents
Cable joint for power engineering Download PDFInfo
- Publication number
- CN110912070A CN110912070A CN201911265304.XA CN201911265304A CN110912070A CN 110912070 A CN110912070 A CN 110912070A CN 201911265304 A CN201911265304 A CN 201911265304A CN 110912070 A CN110912070 A CN 110912070A
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- Prior art keywords
- self
- buffer
- sealing cover
- cable joint
- power engineering
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Links
- 238000007789 sealing Methods 0.000 claims abstract description 53
- 238000009434 installation Methods 0.000 claims abstract description 21
- 238000013016 damping Methods 0.000 claims 3
- 230000000452 restraining effect Effects 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 3
- 235000017491 Bambusa tulda Nutrition 0.000 description 3
- 241001330002 Bambuseae Species 0.000 description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 3
- 239000011425 bamboo Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 241000221535 Pucciniales Species 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- H02G15/007—Devices for relieving mechanical stress
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- Cable Accessories (AREA)
Abstract
The invention relates to the field of power engineering, in particular to a cable joint for power engineering, which comprises a left sealing cover and a right sealing cover, wherein the lower ends of the left sealing cover and the right sealing cover are respectively provided with a buffer mechanism, the lower end of the buffer mechanism is respectively connected with a left mounting seat and a right mounting seat, the right end of the left mounting seat is provided with a connecting rod, a self-locking cavity is formed in the right mounting seat, the left end of the self-locking cavity is provided with a through hole for the connecting rod to be inserted into, the left end of the self-locking cavity is provided with an inclined surface, a plurality of self-locking rings are arranged on the inclined surface, the right end of the self-locking cavity is provided with a limiting barrel, a spring is arranged in the self-locking cavity, one end of the spring is connected with the right end of the self-locking cavity, the other end. The structure setting of this device, the installation is dismantled conveniently, can not appear rustting and be difficult to the problem of dismantling, and the recycle of being more convenient for, the practicality chamber has satisfied modernized user demand is changed in the maintenance of being convenient for.
Description
Technical Field
The invention relates to the field of power engineering, in particular to a cable joint for power engineering.
Background
The cable connector is also called a cable head. After the cable is laid, in order to form a continuous line, all the sections of the cable must be connected into a whole, the connection points are called cable joints, the cable joint in the middle of the cable line is called an intermediate joint, the cable joints at two ends of the line are called terminals, and the cable joints are used for locking and fixing incoming and outgoing lines and play a role in preventing water, dust and vibration.
At present, when a power cable is connected, the outer insulating layers of two cable ends to be connected are usually removed by using wire stripping pliers, so that core wires are fully exposed, then the two core wires are twisted together forcibly, finally, an insulating adhesive tape is used for winding a connecting part, the connecting part is wound by a connecting wire, the connection is unstable, the sealing performance is poor, and the joint of a common cable is easy to wear, damage or destroy the cable.
Chinese patent publication No. CN 108470989 a discloses a connector for power cable wiring, the device is rational in infrastructure, the modern design, easy operation, simple to operate, through public connector, female connector, first rack board, second rack board, bolt, screw hole and gear, the fixed and connection between the cable connector of being convenient for, through sealed rubber ring, be convenient for seal. Although the device can protect cable joint, it adopts the bolt to connect, uses a period of back, and the bolt rusts easily for the device is difficult to be dismantled, and inconvenient and maintenance are changed, and the recycle that is also not convenient for has not satisfied modernized user demand.
Disclosure of Invention
The present invention is directed to a cable connector for power engineering to solve the above problems.
In order to achieve the purpose, the invention provides the following technical scheme:
a cable joint for electric power engineering comprises a left sealing cover and a right sealing cover, wherein the outer ends of the left sealing cover and the right sealing cover are respectively provided with a mounting sleeve, the inner wall of the mounting sleeve is provided with a sealing ring, the lower ends of the left sealing cover and the right sealing cover are both provided with a buffer mechanism, the lower end of the buffer mechanism is respectively connected with a left mounting seat and a right mounting seat, the right end of the left mounting seat is provided with a connecting rod, the inside of the right mounting seat is provided with a self-locking cavity, the left end of the self-locking cavity is provided with a through hole for inserting the connecting rod, the left end of the self-locking cavity is provided with an inclined plane, a plurality of self-locking rings are arranged on the inclined surface, a limiting cylinder is arranged at the right end of the self-locking cavity, a spring is arranged in the self-locking cavity, one end of the spring is connected with the right end of the self-locking cavity, the other end of the spring is abutted against the self-locking ring, and an unlocking port is formed in the lower side of the left end of the self-locking cavity.
As a still further scheme of the invention: the lower extreme of unblock mouth is provided with the seal groove, be provided with the sealing plug in the seal groove.
As a still further scheme of the invention: the diameter of the round hole in the middle of the self-locking ring is larger than that of the connecting rod.
As a still further scheme of the invention: the diameter of the inside of the limiting cylinder is the same as that of the connecting rod.
As a still further scheme of the invention: the right-hand member of left side sealed cowling is provided with annular bulge, and the left end of right side sealed cowling is provided with the annular groove with annular bulge complex.
As a still further scheme of the invention: and a sealing gasket is arranged between the annular protrusion and the annular groove.
As a still further scheme of the invention: and the outer ends of the left mounting seat and the right mounting seat are provided with fixing bolts.
As a still further scheme of the invention: the buffer mechanism comprises a buffer seat and a buffer column.
As a still further scheme of the invention: the buffer chamber has been seted up to the inside of cushion socket, the inside of buffer chamber is provided with the buffer board, the downside of buffer board is provided with first blotter, and the lower extreme of buffer chamber is provided with the second blotter, and the upside of buffer board is provided with first annular blotter, and the upper end of buffer chamber is provided with second annular blotter.
As a still further scheme of the invention: the downside of first blotter is provided with a plurality of first magnet pieces, and the upside of second blotter is provided with a plurality of second magnet pieces, the magnetic pole of the opposite face of first magnet piece and second magnet piece is the same, the upside of first annular blotter is provided with a plurality of third magnet pieces, and the downside of second annular blotter is provided with a plurality of fourth magnet pieces, the magnetic pole of the opposite face of third magnet piece and fourth magnet piece is the same.
Compared with the prior art, the invention has the beneficial effects that: the structure setting of this device, left side sealed cowling and right sealed cowling are connected through left mount pad and right mount pad, when the installation, connecting rod on the mount pad of a left side, through-hole and the self-locking ring that passes right mount pad, inject in spacing section of thick bamboo, the self-locking ring carries out the auto-lock to the connecting rod under the effect of spring, simple to operate, it is fixed firm, when needs are dismantled, through unlocking the mouth, utilize the instrument will dial the self-locking ring, take out the connecting rod can, the installation is dismantled conveniently, the problem of rustting and being difficult to dismantle can not appear, be convenient for maintain and change, the recycle of being convenient for, the practicality chamber, modernized user demand has been satisfied.
Drawings
Fig. 1 is a schematic structural diagram of the device.
Fig. 2 is a schematic view of a connection structure of the left mounting seat and the right mounting seat.
Fig. 3 is a schematic structural view of the buffer mechanism.
1-left sealing cover, 2-right sealing cover, 3-mounting sleeve, 4-sealing ring, 5-annular protrusion, 6-annular groove, 7-sealing gasket, 8-left mounting seat, 9-right mounting seat, 10-fixing bolt, 11-buffer mechanism, 12-connecting rod, 13-self-locking cavity, 14-through hole, 15-inclined surface, 16-self-locking ring, 17-limiting cylinder, 18-spring, 19-sealing groove, 20-unlocking port, 21-sealing plug, 22-buffer seat, 23-buffer column, 24-buffer cavity, 25-buffer plate, 26-first buffer pad, 27-first magnet block, 28-second buffer pad, 29-second magnet block, 30-second annular buffer pad, 31-fourth magnet block, 32-first annular buffer, 33-third magnet block.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.
Example one
Referring to fig. 1-3, in the embodiment of the present invention, a cable joint for power engineering includes a left sealing cover 1 and a right sealing cover 2, the outer ends of the left sealing cover 1 and the right sealing cover 2 are both provided with a mounting sleeve 3, the inner wall of the mounting sleeve 3 is provided with a sealing ring 4, the lower ends of the left sealing cover 1 and the right sealing cover 2 are both provided with a buffer mechanism 11, the lower end of the buffer mechanism 11 is respectively connected with a left mounting seat 8 and a right mounting seat 9, the right end of the left mounting seat 8 is provided with a connecting rod 12, the inside of the right mounting seat 9 is provided with a self-locking cavity 13, the left end of the self-locking cavity 13 is provided with a through hole 14 for inserting the connecting rod 12, the left end of the self-locking cavity 13 is provided with an inclined surface 15, the inclined surface 15 is provided with a plurality of self-locking rings 16, the right end of the self-locking cavity 13, one end of the spring 18 is connected with the right end of the self-locking cavity 13, the other end of the spring 18 is abutted against the self-locking ring 16, and an unlocking port 20 is formed in the lower side of the left end of the self-locking cavity 13.
The lower end of the unlocking port 20 is provided with a sealing groove 19, a sealing plug 21 is arranged in the sealing groove 19, the diameter of a round hole in the middle of the self-locking ring 16 is larger than that of the connecting rod 12, and the diameter of the inside of the limiting cylinder 17 is the same as that of the connecting rod 12. The structure setting of this device, left side sealed cowling 1 and right sealed cowling 2 are connected through left mount pad 8 and right mount pad 9, when the installation, connecting rod 12 on the left side mount pad 8, through-hole 14 and the self-locking ring 16 that passes right mount pad 9, inject in spacing section of thick bamboo, self-locking ring 16 carries out the auto-lock to connecting rod 12 under the effect of spring 18, high durability and convenient installation, it is fixed firm, when needs are dismantled, through unlocking mouth 20, utilize the instrument will be from self-locking ring 16 to dial, take connecting rod 12 out can, the installation is dismantled conveniently, the problem that rusty and be difficult to dismantle can not appear, be convenient for maintain and change, recycle is more convenient for, the practicality chamber, modernized user demand has been satisfied.
The right-hand member of left side sealed cowling 1 is provided with annular protrusion 5, and the left end of right side sealed cowling 2 is provided with annular protrusion 5 complex annular groove 6, be provided with sealed 7 of filling up between annular protrusion 5 and the annular groove 6, the setting of this structure can guarantee the leakproofness between left side sealed cowling 1 and the right sealed cowling 2, the outer end of left side mount pad 8 and right mount pad 9 all is provided with fixing bolt 10, can fix the device on wall or other positions for the connector can not rock along with the cable, improves the stability that the connector is connected and the security of using.
Example two
A cable joint for power engineering comprises a left sealing cover 1 and a right sealing cover 2, wherein the outer ends of the left sealing cover 1 and the right sealing cover 2 are respectively provided with an installation sleeve 3, the inner wall of the installation sleeve 3 is provided with a sealing ring 4, the lower ends of the left sealing cover 1 and the right sealing cover 2 are respectively provided with a buffer mechanism 11, the lower end of the buffer mechanism 11 is respectively connected with a left installation seat 8 and a right installation seat 9, the right end of the left installation seat 8 is provided with a connecting rod 12, the inside of the right installation seat 9 is provided with a self-locking cavity 13, the left end of the self-locking cavity 13 is provided with a through hole 14 for the connecting rod 12 to be inserted into, the left end of the self-locking cavity 13 is provided with an inclined plane 15, the inclined plane 15 is provided with a plurality of self-locking rings 16, the right end of the self-locking cavity 13 is provided with a limiting cylinder 17, the inside of the self-, the other end of the spring 18 is abutted against the self-locking ring 16, and an unlocking port 20 is formed at the lower side of the left end of the self-locking cavity 13.
The lower end of the unlocking port 20 is provided with a sealing groove 19, a sealing plug 21 is arranged in the sealing groove 19, the diameter of a round hole in the middle of the self-locking ring 16 is larger than that of the connecting rod 12, and the diameter of the inside of the limiting cylinder 17 is the same as that of the connecting rod 12. The structure setting of this device, left side sealed cowling 1 and right sealed cowling 2 are connected through left mount pad 8 and right mount pad 9, when the installation, connecting rod 12 on the left side mount pad 8, through-hole 14 and the self-locking ring 16 that passes right mount pad 9, inject in spacing section of thick bamboo, self-locking ring 16 carries out the auto-lock to connecting rod 12 under the effect of spring 18, high durability and convenient installation, it is fixed firm, when needs are dismantled, through unlocking mouth 20, utilize the instrument will be from self-locking ring 16 to dial, take connecting rod 12 out can, the installation is dismantled conveniently, the problem that rusty and be difficult to dismantle can not appear, be convenient for maintain and change, recycle is more convenient for, the practicality chamber, modernized user demand has been satisfied.
The right-hand member of left side sealed cowling 1 is provided with annular protrusion 5, and the left end of right side sealed cowling 2 is provided with annular protrusion 5 complex annular groove 6, be provided with sealed 7 of filling up between annular protrusion 5 and the annular groove 6, the setting of this structure can guarantee the leakproofness between left side sealed cowling 1 and the right sealed cowling 2, the outer end of left side mount pad 8 and right mount pad 9 all is provided with fixing bolt 10, can fix the device on wall or other positions for the connector can not rock along with the cable, improves the stability that the connector is connected and the security of using.
The buffer mechanism 11 comprises a buffer seat 22 and a buffer column 23, a buffer cavity 24 is arranged inside the buffer seat 22, a buffer plate 25 is arranged in the buffer chamber 24, a first buffer cushion 26 is arranged at the lower side of the buffer plate 25, a second buffer cushion 28 is arranged at the lower end of the buffer chamber 24, a first annular buffer cushion 32 is arranged at the upper side of the buffer plate 25, a second annular buffer cushion 30 is arranged at the upper end of the buffer chamber 24, a plurality of first magnet blocks 27 are arranged at the lower side of the first buffer cushion 26, a plurality of second magnet blocks 29 are arranged at the upper side of the second buffer cushion 28, the magnetic poles of the opposite surfaces of the first magnet block 27 and the second magnet block 29 are the same, a plurality of third magnet blocks 33 are arranged on the upper side of the first annular buffer cushion 32, a plurality of fourth magnet blocks 31 are arranged on the lower side of the second annular buffer cushion 30, and the magnetic poles of the opposite surfaces of the third magnet blocks 33 and the fourth magnet blocks 31 are the same. The setting of this structure, blotter and magnet piece mutually support, can realize the buffering effect of many places, when the cable rocks, can cushion the connector, reduces rocking of connector, improves the stability of connector, has improved the security of using, and the practicality is strong.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A cable joint for power engineering comprises a left sealing cover (1) and a right sealing cover (2), wherein the outer ends of the left sealing cover (1) and the right sealing cover (2) are respectively provided with an installation sleeve (3), the inner wall of the installation sleeve (3) is provided with a sealing ring (4), the cable joint is characterized in that the lower ends of the left sealing cover (1) and the right sealing cover (2) are respectively provided with a buffer mechanism (11), the lower end of the buffer mechanism (11) is respectively connected with a left installation seat (8) and a right installation seat (9), the right end of the left installation seat (8) is provided with a connecting rod (12), the inside of the right installation seat (9) is provided with a self-locking cavity (13), the left end of the self-locking cavity (13) is provided with a through hole (14) for the connecting rod (12) to be inserted into, the left end of the self-locking cavity (13) is provided with an inclined plane (15), and a plurality of self-, the right end of the self-locking cavity (13) is provided with a limiting barrel (17), a spring (18) is arranged inside the self-locking cavity (13), one end of the spring (18) is connected with the right end of the self-locking cavity (13), the other end of the spring (18) is abutted to the self-locking ring (16), and an unlocking port (20) is formed in the lower side of the left end of the self-locking cavity (13).
2. An electric power engineering cable joint according to claim 1, characterized in that the lower end of the unlocking opening (20) is provided with a sealing groove (19), and a sealing plug (21) is arranged in the sealing groove (19).
3. An electric power engineering cable joint according to claim 1 or 2, characterized in that the diameter of the central circular hole of the self-locking ring (16) is larger than the diameter of the connecting rod (12).
4. An electric power engineering cable joint according to claim 1, characterized in that the diameter of the inside of the restraining barrel (17) is the same as the diameter of the connecting rod (12).
5. An electric power engineering cable joint according to claim 1 or 4, characterized in that the right end of the left sealing cover (1) is provided with an annular protrusion (5), and the left end of the right sealing cover (2) is provided with an annular groove (6) which is matched with the annular protrusion (5).
6. An electric power engineering cable joint according to claim 5, characterized in that a sealing gasket (7) is arranged between the annular protrusion (5) and the annular groove (6).
7. An electric power engineering cable joint according to claim 1, characterized in that the outer ends of the left and right mounting seats (8, 9) are provided with fixing bolts (10).
8. An electric power engineering cable joint according to claim 1, characterized in that the damping mechanism (11) comprises a damping seat (22) and a damping post (23).
9. The cable joint for power engineering according to claim 8, wherein a buffer chamber (24) is formed inside the buffer seat (22), a buffer plate (25) is arranged inside the buffer chamber (24), a first buffer pad (26) is arranged on the lower side of the buffer plate (25), a second buffer pad (28) is arranged on the lower end of the buffer chamber (24), a first annular buffer pad (32) is arranged on the upper side of the buffer plate (25), and a second annular buffer pad (30) is arranged on the upper end of the buffer chamber (24).
10. An electric power engineering cable joint according to claim 9, characterized in that the lower side of the first buffer pad (26) is provided with a plurality of first magnet blocks (27), the upper side of the second buffer pad (28) is provided with a plurality of second magnet blocks (29), the magnetic poles of the opposite surfaces of the first magnet blocks (27) and the second magnet blocks (29) are the same, the upper side of the first annular buffer pad (32) is provided with a plurality of third magnet blocks (33), the lower side of the second annular buffer pad (30) is provided with a plurality of fourth magnet blocks (31), and the magnetic poles of the opposite surfaces of the third magnet blocks (33) and the fourth magnet blocks (31) are the same.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911265304.XA CN110912070B (en) | 2019-12-11 | 2019-12-11 | Cable joint for power engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911265304.XA CN110912070B (en) | 2019-12-11 | 2019-12-11 | Cable joint for power engineering |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110912070A true CN110912070A (en) | 2020-03-24 |
| CN110912070B CN110912070B (en) | 2021-01-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911265304.XA Active CN110912070B (en) | 2019-12-11 | 2019-12-11 | Cable joint for power engineering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110912070B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111293665A (en) * | 2020-03-25 | 2020-06-16 | 上海犇臣科贸有限公司 | Self-locking device for cable sealing |
| CN112688243A (en) * | 2020-12-07 | 2021-04-20 | 国网浙江杭州市富阳区供电有限公司 | Wire clamp protective sleeve |
| CN113178277A (en) * | 2021-04-25 | 2021-07-27 | 华远高科电缆有限公司 | Seamless novel environment-friendly alloy sheath through ground wire |
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| CN206377367U (en) * | 2017-01-17 | 2017-08-04 | 中山市五安光电科技有限公司 | A kind of electrical equipment Petrochemical Pipe Joints easy to disassemble with installing |
| CN207368365U (en) * | 2017-10-19 | 2018-05-15 | 天津瑞诚信欧电子科技有限公司 | A kind of compact connector with slide lock |
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| CN208062573U (en) * | 2018-04-19 | 2018-11-06 | 国网新疆电力有限公司检修公司 | A kind of fixing device for transformer equipment |
| CN108987998A (en) * | 2018-09-10 | 2018-12-11 | 福建西威联电气有限公司 | A kind of connector base being connected firmly |
| CN209012836U (en) * | 2018-12-07 | 2019-06-21 | 华士光照明湖北有限公司 | A kind of magnetic-type work spot easy to repair |
| CN209119457U (en) * | 2019-01-14 | 2019-07-16 | 深圳市鸿万科电子有限公司 | A kind of electromagnetism interference high-low frequency mixed loading metal self-locking formula connector |
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2019
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| CN200959374Y (en) * | 2006-09-22 | 2007-10-10 | 曹可贵 | Self-locking cable connector |
| JP5286166B2 (en) * | 2009-06-17 | 2013-09-11 | 矢崎総業株式会社 | Unlock structure |
| CN103392269A (en) * | 2011-02-23 | 2013-11-13 | 莫列斯公司 | Lockable mating connector |
| CN202856031U (en) * | 2012-10-11 | 2013-04-03 | 安徽省宿州市龙华机械制造有限公司 | British standard plug with reducible volume |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111293665A (en) * | 2020-03-25 | 2020-06-16 | 上海犇臣科贸有限公司 | Self-locking device for cable sealing |
| CN112688243A (en) * | 2020-12-07 | 2021-04-20 | 国网浙江杭州市富阳区供电有限公司 | Wire clamp protective sleeve |
| CN113178277A (en) * | 2021-04-25 | 2021-07-27 | 华远高科电缆有限公司 | Seamless novel environment-friendly alloy sheath through ground wire |
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| Publication number | Publication date |
|---|---|
| CN110912070B (en) | 2021-01-08 |
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