CN107370077B - Cable tightening device - Google Patents
Cable tightening device Download PDFInfo
- Publication number
- CN107370077B CN107370077B CN201710649324.1A CN201710649324A CN107370077B CN 107370077 B CN107370077 B CN 107370077B CN 201710649324 A CN201710649324 A CN 201710649324A CN 107370077 B CN107370077 B CN 107370077B
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- clamp
- male
- cable
- wire
- female
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- 238000003825 pressing Methods 0.000 claims abstract description 52
- 238000005452 bending Methods 0.000 claims abstract description 4
- 238000005096 rolling process Methods 0.000 claims description 18
- 230000006835 compression Effects 0.000 claims description 10
- 238000007906 compression Methods 0.000 claims description 10
- 238000002788 crimping Methods 0.000 claims description 8
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 3
- 229910052573 porcelain Inorganic materials 0.000 description 10
- 238000000034 method Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012212 insulator Substances 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
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
- H02G1/04—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables for mounting or stretching
Landscapes
- Clamps And Clips (AREA)
Abstract
The invention discloses a cable wire tightening device, which comprises a wire tightening device and a wire clamp, wherein the wire tightening device comprises a wire tightening frame, a movable pressing block and a pressing screw rod, the wire tightening frame comprises a guide rod, a connecting part and a supporting seat, a guide cylinder matched with the guide rod is arranged on the movable pressing block, the wire clamp comprises a male clamp and a female clamp, the male clamp and the female clamp are respectively arranged on the movable pressing block and the supporting seat on the wire tightening device, and the pressing screw rod on the wire tightening device is rotated to drive the movable pressing block to reciprocate relative to the supporting seat, so that the male clamp and the female clamp press separated cables and tie the cables together; the anti-skidding fixing device is arranged on the wire grip, so that the phenomenon that the fixing effect of the cable is influenced by the slippage of the wire grip caused by the inclination or bending of the cable during operation can be prevented; the two sides of the male clamp are provided with at least two locking screw rods, the cable penetrates through the locking screw rods on the two sides of the male clamp, the cable within the length range of the male clamp is compressed at the same time, only one male clamp and one female clamp are combined to fix and fasten the cables which are mutually separated, and a plurality of wire clamps are not required to be fixed at multiple points.
Description
Technical Field
The invention relates to the field of electric power tools, in particular to a cable tightening device.
Background
The safety of electricity utilization in the society of present is very important, guarantees the safe and stable operation of electric wire netting. The cable is erected on a telegraph pole or a building through a street code, and the fixing of the cable end generally comprises the steps of bending the cable end around a street code porcelain and binding or fixing the mutually separated cables in a tensioned state; at present, constructors generally press cables separated from each other together by a conventional method such as manual power or a simple tool and then bind and fix the pressed cables by using binding wires. Because the diameter of the cable is thick, the cable is difficult to be pressed together by high-altitude operators only by manpower or simple tools, and the elasticity of the cable is very large when the cable is bent, so that the cable is easy to bounce or slip off from hands or the simple tools, and the construction difficulty is increased. The binding wire is generally an aluminum metal thin wire, the insulation performance of the cable is reduced due to the fact that the binding wire is tightly bound on the cable, the insulating outer layer of the cable is easily damaged, the binding method is not uniform and standard, the randomness is high, the binding firmness of the cable end is difficult to guarantee, the cable end is easily loosened and falls off from the street code, and potential safety hazards are brought; some existing wire tightening devices can basically solve the above problems, but have the following problems: the wire grip has complex and heavy structure and high processing and manufacturing cost, and the dynamic pressure block is easy to shake relative to the wire grip body in the operation process, so the operation portability and the safety are not good; the cables cross after bypassing the street code porcelain, the surfaces of the cables are inclined, and when the cable is compressed by the cable tightening device, the cables easily slide on the cables, so that the compressed position is difficult to fix; the cable clamp can only lock the cable at one point, if the cables which are separated from each other are firmly locked together, the cable is required to be continuously locked by two or more cable clamps within a distance from one end, which wastes time and labor and has higher cost.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide a cable tightening device which can be used for labor-saving and quickly pressing mutually separated cables together, accurately fixing the pressing position, simultaneously pressing mutually separated cables within a certain length range together and firmly fixing the cables.
The invention is realized by the following technical scheme:
a cable tightener comprises a tightener body and a cable clamp, wherein the tightener body comprises a tightener frame, a movable pressing block and a pressing screw rod, the tightener frame comprises at least one guide rod, a connecting portion and a supporting seat, the connecting portion and the supporting seat are fixed at two ends of the guide rod and are oppositely arranged, a guide cylinder which corresponds to the guide rod and is tightly matched with the guide rod is fixedly arranged on the movable pressing block, the guide cylinder is sleeved on the guide rod and can reciprocate along the guide rod, the pressing screw rod is in threaded connection with the connecting portion, one end of the pressing screw rod is rotatably connected with the movable pressing block, the other end of the pressing screw rod is provided with a driving structure, the movable pressing block is located between the connecting portion and the supporting seat and is oppositely arranged with the supporting seat, a first mounting structure and a second mounting structure are respectively arranged on opposite surfaces of the movable pressing block and the supporting seat, the movable pressing block can be driven to reciprocate between the connecting portion and the supporting seat by rotating the pressing screw rod, and an anti-skid fixing device is further arranged on the tightener frame and comprises a fixing portion which is fixedly connected with the tightener frame, a hanging portion which is connected with a street code support or street code porcelain hanging portion and a bending or twisting connecting portion which is connected with the fixing portion; the fastener includes public clamp and female clamp, and the front both sides of public clamp respectively are equipped with two at least locking screw, and the both sides of female clamp are equipped with the locking hole that corresponds, and locking screw can pass the locking hole and lock public clamp and female clamp together through lock nut, is equipped with first line ball portion and the second line ball portion that can cooperate the compression cable between the front both sides of public clamp and female clamp respectively, and the back in public clamp and the female clamp can carry out the interference tight fit with first mounting structure and be connected, and another back can carry out the interference tight fit with second mounting structure and be connected.
Preferably, the fixing part is a fixing seat fixed on the supporting seat, the hanging part is a hook, the connecting part is a connecting piece, two ends of the connecting piece are respectively provided with a first rolling shaft and a second rolling shaft in parallel, the fixing seat is hinged with the first rolling shaft through a first hinge shaft perpendicular to the first rolling shaft, and the base part of the hook is hinged with the second rolling shaft through a second hinge shaft perpendicular to the second rolling shaft;
or, the fixed part with the hanging part is a hanging buckle structure, the connecting part is a metal chain or a soft belt, and the supporting seat is provided with a hanging hole which is convenient for hanging buckle to hang.
Preferably, the male clip is of a rectangular structure, two locking screws are respectively arranged on two sides of the male clip, and the four locking screws are respectively arranged at four end corners of the male clip.
Preferably, first mounting structure and/or second mounting structure includes the mounting panel, sets up two bayonet locks in mounting panel both sides and sets up two bolts at the mounting panel both ends, the public clamp and/or the both sides at the back of female clamp are equipped with the draw-in groove that corresponds the bayonet lock, and both ends are equipped with the jack that corresponds the bolt.
Preferably, the driving structure is a screw head structure fixedly connected to one end of the compression screw.
Preferably, the side of the first mounting structure and/or the second mounting structure is provided with a positioning pin, and the side of the male clamp and/or the female clamp is provided with a positioning groove capable of being matched with the positioning pin.
Preferably, the first crimping portion and/or the second crimping portion are/is a concave arc-shaped insulating structure or a bent surface insulating structure.
Preferably, still be equipped with on the female back of pressing from both sides and be used for the protection the protective cover of locking screw tip, the protective cover with female clamp is gone on dismantling and is connected.
The cable tightening device has the beneficial effects that: (1) the structure design of the wire tightening frame is simple, the manufacture and the processing are convenient, the guide rod of the wire tightening frame is matched with the guide cylinder of the movable pressing block for guiding, the moving process of the movable pressing block is stable, and the dynamic pressing block is not easy to shake; (2) the anti-skidding fixing device is arranged, the hanging part is hung on the street code support or the street code porcelain during operation, the position of the line tightening device is fixed, and the cable cannot slide on the cable because the cable inclines or bends after bypassing the street code porcelain during the process that the male clamp and the female clamp the cable; (3) the both sides of public clamp all are equipped with two at least locking screw rods, and the cable passes between the locking screw rod of public clamp both sides, and when public clamp and female clamp were locked, the cable in public clamp length range was compressed tightly simultaneously, only needs a public clamp and female clamp combination both can be with the fixed fastening of the cable that separates mutually, does not need a plurality of fastener to fix at the multiple spot.
The conception, specific structure and effects of the present invention will be further described in conjunction with the accompanying drawings to fully understand the objects, features and effects of the present invention.
Drawings
FIG. 1 is a schematic structural view of a cable tensioner of the present invention;
FIG. 2 is a schematic exploded view of FIG. 1;
FIG. 3 is a reference view showing a state of use of a cable tensioner of the present invention;
wherein: 1-tightener, 11-tightener frame, 111, 112-guide rod, 113-connecting part, 114-support seat, 1141-second mounting structure, 12-movable pressing block, 121, 122-guide cylinder, 123-first mounting structure, 1231-mounting plate, 1232-bayonet, 1233-bayonet, 1234-bayonet, 1235-jack, 13-pressing screw, 131-driving structure, 14-protective fixing device, 141-fixing seat, 142-hook, 143-connecting piece, 1431-first roller, 1432-second roller, 1433-first hinge, 1434-second hinge, 2-wire clamp, 21-male clamp, 211-locking screw, 212-first crimping part, 22-female clamp, 221-locking hole, 222-second crimping part, 23-locking nut, 3-cable, 4-street-code porcelain bunghole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
As shown in fig. 1-3, a cable tightener includes a tightener 1 and a cable clamp 2, the tightener 1 includes a tightener frame 11, a dynamic pressure block 12 and a pressing screw 13, the tightener frame 11 includes two parallel guide rods 111 and 112, a connecting portion 113 and a support 114 fixed at two ends of the guide rods 111 and 112 and disposed oppositely, the dynamic pressure block 12 is fixedly provided with two guide cylinders 121 and 122 corresponding to and closely fitting the two guide rods 111 and 112, the two guide cylinders 121 and 122 are respectively sleeved on the two guide rods 111 and 112 and can reciprocate along the guide rods 111 and 112, the pressing screw 13 is in threaded connection with the connecting portion 113, the pressing screw 13 and the two guide rods 111 and 112 are disposed in a triangular shape, one end of the pressing screw 13 is rotatably connected with the dynamic pressure block 12, the other end is provided with a driving structure 131, the dynamic pressure block 12 is located between the connecting portion 113 and the support 114 and is disposed opposite to the support 114, the opposite surfaces of the movable pressing block 12 and the supporting seat 114 are respectively provided with a first mounting structure 123 and a second mounting structure 1141, the movable pressing block 12 can be driven to reciprocate between the connecting part 113 and the supporting seat 114 by rotating the pressing screw 13, the wire tightening frame 11 is further provided with an anti-skid fixing device 14, the anti-skid fixing device 14 comprises a fixing seat 141 fixed on the wire tightening frame 11, a hook 142 used for being connected with a porcelain code, and a connecting part 143 used for connecting the fixing part and the hanging part, two ends of the connecting part 143 are respectively provided with a first rolling shaft 1431 and a second rolling shaft 1432 in parallel, the fixing seat 141 is hinged to the first rolling shaft 1431 through a first hinge shaft 1433 perpendicular to the first rolling shaft 1431, and the base of the hook 142 is hinged to the second rolling shaft 1432 through a second hinge shaft 1434 perpendicular to the second rolling shaft 1432; the wire clamp 2 comprises a male clamp 21 and a female clamp 22, the male clamp 21 is of a rectangular structure, two sides of the male clamp 21 are respectively provided with two locking screws 211, the four locking screws 211 are respectively arranged at four end corners of the male clamp 21, two sides of the female clamp 22 are provided with corresponding locking holes 221, the locking screws 211 can penetrate through the locking holes 221 and lock the male clamp 21 and the female clamp 22 together through locking nuts 23, a first wire pressing part 212 and a second wire pressing part 222 which can be matched with a compression cable 3 are respectively arranged between two sides of the front face of the male clamp 21 and the front face of the female clamp 22, the back face of the female clamp 22 can be connected with a first mounting structure 123 in an interference tight fit mode, and the back face of the male clamp 21 can be connected with a second mounting structure 1141 in an interference tight fit mode.
During operation, firstly, the hook 142 is hung on an annular groove on the street code porcelain insulator 4, the position of the wire tightening device is determined, then the separated cable 3 is placed between the male clamp 21 and the female clamp 22, then the compression screw 13 is directly rotated to drive the movable pressing block 12 to move towards the supporting seat 114, the male clamp 21 and the female clamp 22 move towards each other, so that the first pressing part 212 and the second pressing part 222 are matched to press the separated cable 3 together, then the male clamp 21 and the female clamp 22 are locked together through the locking nut 23, and finally the compression screw 13 is rotated reversely to drive the movable pressing block 12 to move back to the supporting seat 114 to separate the wire clamp 2 from the wire tightening device 1, so that the male clamp 21 and the female clamp 22 clamp the cable 3 together in a clamping manner for a long time; the antiskid fixing device 14 is arranged, during operation, the hook 142 is hung on the street code porcelain bath 4, the position of the line tightening device is fixed, and the cable 3 cannot slide on the cable 3 because the cable 3 inclines on the surface after bypassing the street code porcelain bath 4 in the process that the male clamp 21 and the female clamp 22 clamp the cable 3; the four corners of the male clamp 21 are provided with the locking screw rods 211, the male clamp 21 has a certain length, the cable 3 passes through the locking screw rods 211 at the two sides of the male clamp 21, when the male clamp 21 and the female clamp 22 are locked, the cable 3 within the length range of the male clamp 21 is simultaneously pressed, only one male clamp 21 and one female clamp 22 are combined, the mutually separated cables 3 can be fixed and fastened, and a plurality of wire clamps 2 are not required to be fixed at multiple points; when operating personnel rotated compression screw 13 and moved briquetting 12 motion with the drive and compress tightly cable 3, compression screw 13 can not longitudinal displacement, and operating personnel need not remove the position of fastening tool (for example spanner, electric spanner), is fit for the electric spanner operation, saves operating space and the operation degree of difficulty, is fit for single high altitude construction.
As a preferred embodiment, the first mounting structure 123 and the second mounting structure 1141 are the same, and each of the first mounting structure 123 and the second mounting structure includes a mounting plate 1231, two pins 1232 disposed on two sides of the mounting plate 1231, and two pins 1233 disposed on two ends of the mounting plate 1231, wherein two sides of the back of the male clip 21 and the back of the female clip 22 are provided with a clamping groove 1234 corresponding to the pin 1232, and two ends of the male clip are provided with insertion holes 1235 corresponding to the pins 1233, so that the male clip 21 and the female clip 22 are prevented from being unstable and shake during operation, and the operation is more convenient and safer.
As a preferred embodiment, the driving structure 131 is a screw head structure fixedly connected to one end of the compression screw 13, preferably an inwardly concave screw head, which has a simple structure and good universality, and can be screwed by a wrench or an electric wrench to drive the compression screw 13 to rotate, so that the operation is convenient.
In a preferred embodiment, the first mounting structure 123 and the second mounting structure 1141 are provided with positioning pins on the side surfaces thereof, and the male clip 21 and the female clip 22 are provided with positioning grooves on the side surfaces thereof for matching with the positioning pins.
In a preferred embodiment, the first crimping portion 212 and the second crimping portion 222 are a concave arc-shaped insulating structure or a bent surface insulating structure.
The present invention is not limited to the embodiments and the drawings, and is not limited to the shape of the cable tensioner, and the shape of the cable tensioner is shown in the drawings, which are not intended to be a technical point of the present invention, but other embodiments and drawings are included in the present invention, which are obtained by modifying, replacing equivalents, improving, etc. the cable tensioner according to the present invention without creative efforts of those skilled in the art are within the protection scope of the present invention.
Claims (7)
1. A cable tightening device is characterized by comprising a wire tightener and a wire clamp, wherein the wire tightener comprises a wire tightener frame, a movable pressing block and a pressing screw rod, the wire tightener frame comprises at least one guide rod, a connecting part and a supporting seat, the connecting part and the supporting seat are fixed at two ends of the guide rod and are oppositely arranged, a guide cylinder which corresponds to the guide rod and is tightly matched with the guide rod is fixedly arranged on the movable pressing block, the guide cylinder is sleeved on the guide rod and can reciprocate along the guide rod, the pressing screw rod is in threaded connection with the connecting part, one end of the pressing screw rod is rotatably connected with the movable pressing block, the other end of the pressing screw rod is provided with a driving structure, the movable pressing block is positioned between the connecting part and the supporting seat and is oppositely arranged with the supporting seat, the opposite surfaces of the movable pressing block and the supporting seat are respectively provided with a first mounting structure and a second mounting structure, the movable pressing block can be driven to reciprocate between the connecting part and the supporting seat by rotating the pressing screw rod, and the wire tightener frame is further provided with an anti-skid fixing device which comprises a fixing part which is fixedly connected with the wire tightener frame, a hanging part which is connected with a fixing part and a hanging part which is capable of bending or twisting the fixing part; the cable clamp comprises a male clamp and a female clamp, wherein at least two locking screw rods are respectively arranged on two sides of the front surface of the male clamp, corresponding locking holes are formed in two sides of the female clamp, the locking screw rods can penetrate through the locking holes and lock the male clamp and the female clamp together through locking nuts, a first wire pressing part and a second wire pressing part which can be matched with and press a cable are respectively arranged between two sides of the front surfaces of the male clamp and the female clamp, one back surface of the male clamp and the back surface of the female clamp can be in interference tight fit connection with a first mounting structure, and the other back surface of the male clamp and the back surface of the female clamp can be in interference tight fit connection with a second mounting structure; the locking nut is positioned on the back surface of the female clamp and positioned on the side surface of the first mounting structure;
the fixed part is a fixed seat fixed on the supporting seat, the hanging part is a hook, the connecting part is a connecting piece with two ends respectively provided with a first rolling shaft and a second rolling shaft in parallel, the fixed seat is hinged with the first rolling shaft through a first hinge shaft vertical to the first rolling shaft, and the base part of the hook is hinged with the second rolling shaft through a second hinge shaft vertical to the second rolling shaft;
or, the fixed part and the hanging part are both of a hanging buckle structure, the connecting part is a metal chain or a soft belt, and the supporting seat is provided with a hanging hole which is convenient for hanging the hanging buckle for hanging.
2. The cable tensioner as claimed in claim 1, wherein the male clip has a rectangular structure, two locking screws are disposed on two sides of the male clip, and four locking screws are disposed at four corners of the male clip.
3. The cable tensioner as claimed in claim 1 or 2, wherein the first mounting structure and/or the second mounting structure comprises a mounting plate, two clamping pins disposed on two sides of the mounting plate, and two bolts disposed on two ends of the mounting plate, wherein two sides of the back surface of the male clamp and/or the female clamp are provided with clamping grooves corresponding to the clamping pins, and two ends of the back surface of the male clamp and/or the female clamp are provided with insertion holes corresponding to the bolts.
4. The cable tensioner as claimed in claim 1 or 2, wherein the driving structure is a screw head structure fixedly connected to one end of the compression screw.
5. The cable tensioner as claimed in claim 1 or 2, wherein the first mounting structure and/or the second mounting structure is provided with a positioning pin at a side thereof, and the male clip and/or the female clip is provided with a positioning groove at a side thereof to be engaged with the positioning pin.
6. The cable tensioner as claimed in claim 1 or 2, wherein the first crimping portion and/or the second crimping portion is a concave arc-shaped insulating structure or a bent surface insulating structure.
7. The cable tensioner as claimed in claim 1 or 2, wherein a protecting cover is disposed on the back of the female clamp for protecting the end of the locking screw, and the protecting cover is detachably connected to the female clamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710649324.1A CN107370077B (en) | 2017-08-01 | 2017-08-01 | Cable tightening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710649324.1A CN107370077B (en) | 2017-08-01 | 2017-08-01 | Cable tightening device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107370077A CN107370077A (en) | 2017-11-21 |
| CN107370077B true CN107370077B (en) | 2023-02-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710649324.1A Active CN107370077B (en) | 2017-08-01 | 2017-08-01 | Cable tightening device |
Country Status (1)
| Country | Link |
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| CN (1) | CN107370077B (en) |
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| CN107681418A (en) * | 2017-11-15 | 2018-02-09 | 广东电网有限责任公司清远供电局 | A kind of Wire termination turns one's head binding tool |
| CN107769087A (en) * | 2017-11-15 | 2018-03-06 | 广东电网有限责任公司清远供电局 | A kind of Wire termination turns one's head strapping device |
| CN108832532B (en) * | 2018-06-13 | 2020-08-18 | 淮南万泰电气有限公司 | Electric drive locking device for arc extinction drainage wire |
| CN108711783B (en) * | 2018-06-13 | 2020-07-07 | 淮南万泰电气有限公司 | Locking equipment for arc extinction maintenance of drainage wire in power system |
| CN110247356A (en) * | 2019-08-01 | 2019-09-17 | 广东电网有限责任公司 | A kind of all insulation terminal street code |
| CN110713069B (en) * | 2019-10-16 | 2020-07-03 | 国家电网有限公司 | Power line lays portable pencil tight line instrument |
| CN110797801B (en) * | 2019-11-20 | 2021-01-15 | 国网山东省电力公司烟台市牟平区供电公司 | Electric power construction tensioner bullwheel |
| CN112290459A (en) * | 2020-11-10 | 2021-01-29 | 广东电网有限责任公司 | Cable tightener |
| CN113539624B (en) * | 2021-07-15 | 2022-05-17 | 江苏科技大学 | An ultra-high voltage solid state transformer based on power transmission |
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| US6235989B1 (en) * | 1996-12-21 | 2001-05-22 | Emu Unterwasserpumpen Gmbh | Protective device for the power cable of a submerged pump |
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| CN207150034U (en) * | 2017-08-01 | 2018-03-27 | 广州番禺电缆集团有限公司 | Cable wire tensioning device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090260919A1 (en) * | 2005-05-13 | 2009-10-22 | Latchways Plc. | Safety line anchor |
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| US6235989B1 (en) * | 1996-12-21 | 2001-05-22 | Emu Unterwasserpumpen Gmbh | Protective device for the power cable of a submerged pump |
| CN105706321A (en) * | 2013-11-15 | 2016-06-22 | 奥斯兰姆施尔凡尼亚公司 | Enclosure with grommetless strain relief |
| CN105244812A (en) * | 2015-10-30 | 2016-01-13 | 国网山东省电力公司东营供电公司 | Hand-held stabilizing apparatus for on-line walking operation |
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Also Published As
| Publication number | Publication date |
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| CN107370077A (en) | 2017-11-21 |
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