CN104074191B - A kind of screwing-in device installed for power transmission and transformation, overhaul - Google Patents
A kind of screwing-in device installed for power transmission and transformation, overhaul Download PDFInfo
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- CN104074191B CN104074191B CN201410293025.5A CN201410293025A CN104074191B CN 104074191 B CN104074191 B CN 104074191B CN 201410293025 A CN201410293025 A CN 201410293025A CN 104074191 B CN104074191 B CN 104074191B
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Abstract
The invention discloses a kind ofly to install for power transmission and transformation, the screwing-in device of maintenance, comprise support and be installed on the worm gear on support, and the worm screw driving worm gear to rotate with worm wheel; Being provided with the bearing for supporting worm gear in worm gear, worm gear offering the six square tube holes matched with outer six sides on earth anchor; One end of worm screw is connected with the first safety coupling disconnecting power when overloading, and the input of the first safety coupling connects as the motor in automatic power source or the rotary handle as manual power source.Earth anchor by being installed on support by worm-and-wheel gear, then is connected on worm gear by the present invention, and by the rotation of worm gear by earth anchor precession or screw out ground use, precession or back-out have manually and electronic two kinds of modes; Safety coupling protection mechanism is mainly when single unit system shields when running overload; Direct current generator is the power source of single unit system.Screwing-in device of the present invention achieves safe precession function, improves operating efficiency and work quality.
Description
Technical field
The invention belongs to power system installation and maintenance technical field, be specifically related to a kind of screwing-in device installed for power transmission and transformation, overhaul.
Background technology
Along with the development of transmission line of electricity electric power network, residential electricity consumption and industrial and mining enterprises' electricity consumption have become the primary part of electricity needs, power equipment, defeated, join, the large and medium-sized power equipment such as power transformation engineering and the work requirements such as line maintenance, maintenance increase day by day, the reliability requirement of power system electric fixtures is more and more higher.Power equipment is because stopping telegram in reply number of operations increasing number, and likely cause power transmission engineering to be installed because power off time is long, tired operation produces the negative effect of safety in production and personal injury.Therefore, in order to ensure installation, the construction quality of human users, just must use the operator scheme of science and novel construction detection method, guarantee personal safety and equipment reliability of operation, can take in time when main force's device fails of operation of power networks and defect to build supplementary measure, thus raising engineering time and equipment are in the fortune life-span.
In electric power transmission line construction, there is the long distance installation to new line, have and the installation of old circuit, used equipment is renovated, usually run into the line level crossing crossing over various obstruction and to construct and manpower transport in special area operates construction.The obstruction crossed over because of power circuit is of a great variety, has various power circuit, connection, highway, railway, house etc., and crossover point is complicated brings larger potential safety hazard to line level crossing construction, and job site earth anchor to bury work difficulty underground large.The contingency occurred during as constructed, may cause being had a power failure for a long time by across power circuit, and railway transportation is interrupted, and the serious personal hidden danger that even causes occurs.Therefore, be badly in need of a kind of safe precession instrument for precession earth anchor of development, people labour-saving can be economized in the short period of time and carry out the installation of various work and maintenance and maintenance work.
Summary of the invention
The object of the invention is to the shortcoming overcoming above-mentioned prior art, a kind of screwing-in device installed for power transmission and transformation, overhaul is provided, this device can be converted to power capacity by mechanical energy effectively, and construction effect compares specification, ensure that running quality and improves operating efficiency.
To achieve these goals, the technical solution adopted in the present invention is: comprise support and be installed on the worm gear on support, and the worm screw driving worm gear to rotate with worm wheel; Being provided with the bearing for supporting worm gear in worm gear, worm gear offering the six square tube holes matched with outer six sides on earth anchor; One end of worm screw is connected with the first safety coupling disconnecting power when overloading, and the input of the first safety coupling connects as the motor in automatic power source or the rotary handle as manual power source.
Described support comprises top for installing the platform of precession mechanism, and the bottom of platform is provided with four supporting legs of some joint connected structures, and the lower end of supporting leg is connected with active legs and feet; Wherein, being also provided with lateral frame between supporting leg between two, lateral frame being provided with the hanging ring for hanging pulley or annex.
Also comprise and be installed on conveying on support and hoisting mechanism, the wirerope-winding that conveying and hoisting mechanism comprise for lay winding wire ropes is taken turns, the one ends wound of wire rope is on wirerope-winding wheel, and the other end is walked around and is arranged on electric pole and obtains chain anchor ear as suspension centre, and lower end hangs and promotes object; The input of wirerope-winding wheel is connected with the output of gear-box, the input of gear-box being connected with the second safety coupling disconnecting power when overloading, the input of the second safety coupling connecting as the motor in automatic power source or the rotary handle as manual power source.
The end of described worm screw other end connecting rod is provided with the first connection and transmits gear, and first connects and transmit gear and the connecting rod between worm screw be provided with the first fork type shaft coupling making first to be connected to transmit gear to connect or cut off power source; Connecting rod between gearbox output with the second safety coupling is disposed with the second fork type shaft coupling and being connected with first gear-box being connected or disconnect power source transmits that gear often engages second connects and transmits gear.
Be provided with in described gear-box and prevent wirerope-winding from taking turns reverse, and enable lifting object hover over the latch of any point in lift stroke.
On one end of described chain anchor ear is fixed on and wins in succession as the link plate of suspension centre or bent angle, the other end be arranged on link plate or bent angle win in succession on anchor ear link up with and be connected; Chain anchor ear is arranged with rubber sleeve with the part of electric pole joint, and rubber sleeve is rectangular configuration, and its inwall a pair work plane is provided with wear-resisting spring liner plate; Electric pole is also provided with working platform, and working platform is fixed on utility poles by link plate and chain anchor ear, and working platform is provided with some links.
Described earth anchor is hollow structure, and earth anchor is provided with vane; The lower end of earth anchor and the side of bottom offer the through hole communicated with internal cavity respectively; The inside and outside of top of earth anchor all offers screw thread.
The top of described earth anchor is connected with link, and link is connected on the internal thread on earth anchor top, and the below of link is provided with connection link plate; Connect connecting bolt link plate being provided with some hanging point bolts for connecting bottom line and matching with screw thread set by earth anchor top.
The upper end of described earth anchor is also connected with the ground anchor pole for increasing earth anchor working depth; The inside and outside of anchor pole two ends all offers screw thread on ground, and ground anchor pole is connected with earth anchor by Spiralism type earth anchor connecting ring or full screw thread bolt.
Compared with prior art, the present invention has following beneficial effect:
Earth anchor by being installed on support by worm-and-wheel gear, then is connected on worm gear by the present invention, and by the rotation of worm gear by earth anchor precession or screw out ground use, precession or back-out have manually and electronic two kinds of modes; Safety coupling protection mechanism is mainly when single unit system shields when running overload; 24V direct current generator is the power source of single unit system.Screwing-in device of the present invention achieves safe precession function, improves operating efficiency and work quality.
Further, the present invention is also provided with the conveying that is connected with screwing-in device and hoisting mechanism and mainly bears power equipment, the lifting of gold utensil and dismounting on support, sues and labours; , be also provided with and the multi-function chain type anchor ear carrying the work that to match with hoisting mechanism, multi-function chain type anchor ear mainly convenient pole is installed fixed support on suspension centre and bar and is used meanwhile.Precession mechanism of the present invention forms an organic whole with conveying and hoisting mechanism with installation chain anchor ear on utility poles and working platform, achieves the several functions of conveying, lifting and precession, further increases operating efficiency and work quality.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention;
Fig. 2 is the overall structure schematic diagram of support of the present invention;
Fig. 3 is the lateral view of precession mechanism of the present invention;
Fig. 4 is the top view of precession mechanism of the present invention and conveying and hoisting mechanism;
Fig. 5 is the structural representation of earth anchor of the present invention;
Fig. 6 is the structural representation of vane and through hole bottom earth anchor of the present invention;
Fig. 7 is the structural representation of the present invention ground anchor pole;
Fig. 8 is the annexation schematic diagram of the present invention's ground anchor pole and earth anchor;
Fig. 9 is the structural representation of Spiralism type earth anchor connecting ring of the present invention;
Figure 10 is the structural representation that the present invention connects link plate;
Figure 11 is the annexation schematic diagram of chain anchor ear of the present invention and link plate;
Figure 12 is the structural representation of anchor ear of the present invention hook;
Figure 13 is the structural representation of rubber sleeve of the present invention;
Figure 14 is the annexation schematic diagram that chain anchor ear of the present invention and bent angle are won in succession;
Figure 15 is the structural representation of working platform of the present invention;
Figure 16 is the front view of chain anchor ear of the present invention;
Figure 17 is the top view of chain anchor ear of the present invention.
Wherein, 1 is support; 2 is earth anchor; 3 is chain anchor ear; 4 is working platform; 5 for promoting object; 6 is platform; 7 is supporting leg; 8 is active legs and feet; 9 is lateral frame; 10 is hanging ring; 11 is worm gear; 12 is worm screw; 13 is bearing; 14 is the first safety coupling; 15 is wirerope-winding wheel; 16 is gear-box; 17 is the second safety coupling; 18 is that gear is transmitted in the first connection; 19 is the first fork type shaft coupling; 20 is the second fork type shaft coupling; 21 is that gear is transmitted in the second connection; 22 is latch; 23 is vane; 24 is through hole; 25 is link; 26 for connecting link plate; 27 is hanging point bolt; 28 is connecting bolt; 29 is ground anchor pole; 30 is Spiralism type earth anchor connecting ring; 31 is full screw thread bolt; 32 is link plate; 33 win in succession for bent angle; 34 is anchor ear hook; 35 is rubber sleeve; 36 is wear-resisting spring liner plate.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described in detail:
See Fig. 1, the present invention includes the precession mechanism be installed on support 1, conveying and hoisting mechanism and the chain anchor ear 3 be all installed on electric pole and working platform 4; The output of precession mechanism is provided with earth anchor 2; Precession mechanism is all connected with motor or rotary handle with the power intake of conveying and hoisting mechanism; Precession mechanism transmits gear with hoisting mechanism by respective connection with conveying and is connected; Carry and hoisting mechanism is provided with the wirerope-winding wheel 15 for lay winding wire ropes, the one ends wound of wire rope is on wirerope-winding wheel 15, and the other end is walked around as suspension centre chain anchor ear 3, and lower end hangs and promotes object 5.One end of chain anchor ear 3 is fixed on wins in succession on 33 as the link plate 32 of suspension centre or bent angle, the other end be arranged on link plate 32 or the bent angle anchor ear of winning in succession on 33 and link up with 34 and be connected; Chain anchor ear 3 is arranged with rubber sleeve 35 with the part of electric pole joint, and rubber sleeve 35 is rectangular configuration, and its inwall a pair work plane is provided with wear-resisting spring liner plate 36; Working platform 4 is fixed on utility poles by link plate 32 and chain anchor ear 3, and working platform 4 is provided with some links.
Earth anchor 2 is hollow structure, and earth anchor 2 is provided with vane 23; The lower end of earth anchor 2 and the side of bottom offer the through hole 24 communicated with internal cavity respectively; The inside and outside of top of earth anchor 2 all offers screw thread.The top of earth anchor 2 is connected with link 25, and link 25 is connected on the internal thread on earth anchor 2 top, and the below of link 25 is provided with and connects link plate 26; Connect the connecting bolt 28 link plate 26 being provided with some hanging point bolts 27 for connecting bottom line and matching with screw thread set by earth anchor 2 top.The upper end of earth anchor 2 is also connected with the ground anchor pole 29 for increasing earth anchor 2 working depth; The inside and outside of anchor pole 29 two ends all offers screw thread on ground, and ground anchor pole 29 is connected with earth anchor 2 by Spiralism type earth anchor connecting ring 30 or full screw thread bolt 31.
Support comprises top for installing the platform 6 of precession mechanism and conveying and hoisting mechanism, and the bottom of platform 6 is provided with four supporting legs 7 of some joint connected structures, and the lower end of supporting leg 7 is connected with active legs and feet 8; Wherein, being also provided with lateral frame 9 between supporting leg 7 between two, lateral frame 9 being provided with the hanging ring 10 for hanging pulley or annex.Precession mechanism comprises the worm gear 11 be installed on support 1, and the worm screw 12 driving worm gear 11 to rotate of matching with worm gear 11; Being provided with the bearing 13 for supporting worm gear 11 in worm gear 11, worm gear 11 offering the six square tube holes matched with outer six sides on earth anchor 2; The input that one end of worm screw 12 is connected with the first safety coupling 14, first safety coupling 14 disconnecting power when overloading connects as the motor in automatic power source or the rotary handle as manual power source.Conveying and hoisting mechanism comprise wirerope-winding wheel 15, the input of wirerope-winding wheel 15 is connected with the output of gear-box 16, the input of gear-box 16 is connected with overload time disconnect power the second safety coupling 17, second safety coupling 17 input on connect as the motor in automatic power source or the rotary handle as manual power source.The end of worm screw 12 other end connecting rod is provided with the first connection and transmits gear 18, first and connect and transmit gear 18 and the connecting rod between worm screw 12 be provided with the first fork type shaft coupling 19 making first to be connected to transmit gear 18 to connect or cut off power source; Connecting rod between gear-box 16 output with the second safety coupling 17 is disposed with the second fork type shaft coupling 20 and being connected with first gear-box 16 being connected or disconnect power source transmits that gear 18 often engages second connects and transmits gear 21.Be provided with in gear-box 16 and prevent wirerope-winding from taking turns 15 reverses, and enable lifting object hover over the latch 22 of any point in lift stroke.
Principle of the present invention:
See Fig. 1, the present invention is made up of support 1, earth anchor 2, precession mechanism, conveying and hoisting mechanism, direct current generator (24V), steel-ball type torque force limiting device (first safety coupling 14 and the second safety coupling 17), rotary handle.When direct current generator (24V) drives the worm screw of precession mechanism to rotate, worm drive worm gear rotarily drives multi-functional earth anchor and rotates, and multi-functional earth anchor screws in automatic soil under the effect of self vane.As this device run into larger resistance time, first shaft coupling 14 start disconnect direct current generator (24V), device quits work, and protective device is not damaged, and when direct current generator (24V) is changed into rotary handle, can realize earth anchor and manually screw in.When worm screw is rotated, drive conveying and hoisting mechanism work by connecting transmission gear train simultaneously.In addition, when direct current generator (24V) is changed activation point, namely conveying and hoisting mechanism input is changed to, also can realize precession mechanism by connecting transmission gear train and carry and hoisting mechanism work, this duty is by the fork type shaft coupling position of adjusting device, two mechanisms can be realized work simultaneously or work independently, also can realize using manual operation.Conveying and hoisting mechanism input axle are also provided with steel-ball type torque force limiting device (safety coupling), protect whole device.
For the career field of expanding device, be also provided with working platform two mechanism on multi-function chain type anchor ear and bar, convenient for electric pole lays suspension centre and safe operation platform.Integrated model has good reliability, operability, stability, and range of application widely.
As shown in Figure 2, single unit system is installed in the effect of platform 6 of the present invention, and supporting leg 7 entirety adopts three joint connected structures, laterally fixing with bolt, object is convenient in the work of special area employing height leg, can also obtain maximum support power (utilizing inclined-plane self-lock mechanism); Active legs and feet 8 can make support firm, are connected with supporting leg by screw thread; Lateral frame 9 support is firmly overall; Pulley and other annex are hung in hanging ring 10 effect.
As shown in Figure 3 and Figure 4, turbine 11 effect of the present invention is Power output, drives earth anchor 2 to rotate, makes earth anchor 2 screw in and screw out; Worm screw 12 effect drives turbine 11 to rotate; First fork type shaft coupling 19 effect makes the first connection transmit gear 18 connect or cut off power source; First connects and transmits gear 18 and be used to connect conveying and hoisting mechanism; First safety coupling 14 Main Function disconnects power when single unit system overloads, and protective device is not damaged; It is support turbine 11 that bearing 13 acts on; The effect of 24V motor is that single unit system realizes automatic power source, designs remote-controlled control; Rotary handle is the manual power source of single unit system.First safety coupling 14 and the second safety coupling 17 are steel-ball type torque force limiting device.
As shown in Fig. 4 is, gear-box 16 effect of the present invention makes wirerope-winding take turns 15 to obtain an applicable rotating speed; Latch 22 prevents wirerope-winding from taking turns 15 reverses, and object can be made to hover over any point; Second fork type shaft coupling 20 effect makes gear-box 16 connect or cut off power source; Second safety coupling 17 Main Function disconnects power when single unit system overloads, and ensuring equipment is not damaged; The effect of 24V motor is that single unit system realizes automatic power source, designs remote-controlled control; Rotary handle is the manual power source of single unit system; Wirerope-winding wheel 15 effect is lay winding wire ropes.
As shown in Fig. 5 to Figure 10, earth anchor 2 of the present invention is self-rotary earth anchor, self-rotary earth anchor is with vane 23 by self, when stressed rotation, earth anchor 2 automatically screws under the effect of vane 23, earth anchor 2 itself is hollow, and lower end is provided with the through hole 24 communicated with it, facilitates liquid to flow out to earth anchor 2 with lubrication, earth anchor 2 is provided with screw thread inside and outside upper end, for connecting other object; Ground anchor pole 29 is extension bars of earth anchor 2, the working depth that earth anchor 2 reaches desirable can be made, screw thread is provided with inside and outside two ends, it can be connected with full screw thread bolt 31 with self-rotary earth anchor, fix with jackscrew after connection, also can connect with Spiralism type earth anchor connecting ring 30, earth anchor 2 can be made to increase from spin, and precession is more steady; Connect link plate 26 and be used to hanging earthing conductor design, many ground wires can be realized and mount simultaneously, the connecting bolt 28 in the middle of it with on self-rotary earth anchor and ground anchor pole 29 set by screw thread mate; Link 25 connects it after earth anchor screws in, can colligation sling, extension pulley use.
As shown in Figure 11 to Figure 17, chain anchor ear 3 of the present invention coordinates conveying and hoisting mechanism design, in order to this mechanism expands working space, multi-function chain type anchor ear can link up with 34 with chain anchor ear, bent angle win in succession 33 connections use, bent angle is won in succession and 33 is provided with mount hole, also use can be connected with link plate 32, by rotating the nut tensioning chain of chain anchor ear hook, for suspension centre laid by electric pole, for protection electric pole multi-function chain type anchor ear is provided with abrasive rubber cover 35, abrasive rubber cover 35 is rectangular configuration, inwall a pair work plane is designed with wear-resisting spring liner plate and improves the persistence used, for improving conveying and hoisting mechanism working range further, also for it is provided with working platform 4 on bar, be fixed on bar with link plate 32 and multi-function chain type anchor ear, the working platform 4 on bar is provided with multiple link, and conveniently work use.
The present invention also has the following advantages:
For power grid construction and equipment safety operation lay the foundation, guarantee transmission line of electricity reliability service stability, this device specification and solve staff in special area safety, reasonably operability, running quality is ageing and scientific procedures is professional.This instrument is when installing, overhauling, safeguard, speedily carry out rescue work and suing and labouring work, time saving and energy saving, can significantly improve operating efficiency, and using function is many while alleviating operating personnel's working strength.The reliability of operation of power networks can be improved and alleviate the labour intensity of staff, improving safety in production extra earning economic benefit.Novel conveying, three-dimensional to promote, the co-ordinative construction of the many integrations such as temporary earthing device and screwing-in device, the structure of the particularly multi-functional conveying such as a kind of novel electric power construction, installation, maintenance, safety first-aid, lifting, precession mechanism.
Above content is only and technological thought of the present invention is described; protection scope of the present invention can not be limited with this; every technological thought proposed according to the present invention, any change that technical scheme basis is done, within the protection domain all falling into claims of the present invention.
Claims (8)
1. the screwing-in device installed for power transmission and transformation, overhaul, it is characterized in that: comprise support (1) and be installed on the worm gear (11) on support (1), and the worm screw (12) driving worm gear (11) to rotate of matching with worm gear (11); Being provided with the bearing (13) for supporting worm gear (11) in worm gear (11), worm gear (11) offering the six square tube holes matched with outer six sides on earth anchor (2); One end of worm screw (12) is connected with the first safety coupling (14) disconnecting power when overloading, and the input of the first safety coupling (14) connects as the motor in automatic power source or the rotary handle as manual power source;
Also comprise and be installed on conveying on support (1) and hoisting mechanism, the wirerope-winding that conveying and hoisting mechanism comprise for lay winding wire ropes is taken turns (15), the one ends wound of wire rope is on wirerope-winding wheel (15), the other end is walked around and is arranged on electric pole and obtains chain anchor ear (3) as suspension centre, and lower end hangs and promotes object (5); The input of wirerope-winding wheel (15) is connected with the output of gear-box (16), the input of gear-box (16) being connected with the second safety coupling (17) disconnecting power when overloading, the input of the second safety coupling (17) connecting as the motor in automatic power source or the rotary handle as manual power source.
2. the screwing-in device installed for power transmission and transformation, overhaul according to claim 1, it is characterized in that: described support (1) comprises top for installing the platform (6) of precession mechanism, the bottom of platform (6) is provided with four supporting legs (7) of some joint connected structures, and the lower end of supporting leg (7) is connected with active legs and feet (8); Wherein, being also provided with lateral frame (9) between supporting leg (7) between two, lateral frame (9) being provided with the hanging ring (10) for hanging pulley or annex.
3. the screwing-in device installed for power transmission and transformation, overhaul according to claim 1, it is characterized in that: the end of described worm screw (12) other end connecting rod is provided with the first connection and transmits gear (18), first connects and transmits gear (18) and the connecting rod between worm screw (12) be provided with the first fork type shaft coupling (19) making first to be connected to transmit gear (18) to connect or cut off power source; Connecting rod between gear-box (16) output with the second safety coupling (17) is disposed with the second fork type shaft coupling (20) and being connected with first gear-box (16) being connected or disconnect power source transmits that gear (18) often engages second connects and transmits gear (21).
4. the screwing-in device installed for power transmission and transformation, overhaul according to claim 1, it is characterized in that: be provided with in described gear-box (16) and prevent wirerope-winding from taking turns (15) reverse, and enable lifting object hover over the latch (22) of any point in lift stroke.
5. the screwing-in device installed for power transmission and transformation, overhaul according to claim 1, it is characterized in that: one end of described chain anchor ear (3) is fixed on wins in succession on (33) as the link plate (32) of suspension centre or bent angle, the other end be arranged on anchor ear that link plate (32) or bent angle win in succession on (33) and link up with (34) and be connected; Chain anchor ear (3) part that is upper and electric pole joint is arranged with rubber sleeve (35), and rubber sleeve (35) is rectangular configuration, and its inwall a pair work plane is provided with wear-resisting spring liner plate (36); Electric pole is also provided with working platform (4), working platform (4) is fixed on utility poles by link plate (32) and chain anchor ear (3), and working platform (4) is provided with some links.
6. the screwing-in device installed for power transmission and transformation, overhaul according to claim 1, is characterized in that: described earth anchor (2) is hollow structure, and earth anchor (2) is provided with vane (23); The lower end of earth anchor (2) and the side of bottom offer the through hole (24) communicated with internal cavity respectively; The inside and outside of top of earth anchor (2) all offers screw thread.
7. the screwing-in device installed for power transmission and transformation, overhaul according to claim 6, it is characterized in that: the top of described earth anchor (2) is connected with link (25), link (25) is connected on the internal thread on earth anchor (2) top, and the below of link (25) is provided with and connects link plate (26); Connect the connecting bolt (28) link plate (26) being provided with some hanging point bolts (27) for connecting bottom line and matching with screw thread set by earth anchor (2) top.
8. the screwing-in device installed for power transmission and transformation, overhaul according to claim 6, is characterized in that: the upper end of described earth anchor (2) is also connected with the ground anchor pole (29) for increasing earth anchor (2) working depth; The inside and outside of anchor pole (29) two ends all offers screw thread on ground, and ground anchor pole (29) is connected with earth anchor (2) by Spiralism type earth anchor connecting ring (30) or full screw thread bolt (31).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410293025.5A CN104074191B (en) | 2014-06-25 | 2014-06-25 | A kind of screwing-in device installed for power transmission and transformation, overhaul |
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| CN201410293025.5A CN104074191B (en) | 2014-06-25 | 2014-06-25 | A kind of screwing-in device installed for power transmission and transformation, overhaul |
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| CN104074191B true CN104074191B (en) | 2016-03-02 |
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| CN104538752A (en) * | 2015-01-14 | 2015-04-22 | 国网河北省电力公司衡水供电分公司 | Grounded drill rod easy to insert and pull and special inserting and pulling tool |
| CN106927381A (en) * | 2017-03-29 | 2017-07-07 | 国网山东省电力公司菏泽供电公司 | A kind of multi-purpose vehicle(MPV) self-rescuer |
| CN112376559A (en) * | 2020-11-07 | 2021-02-19 | 国网山东省电力公司烟台供电公司 | Earth anchor for electric power construction |
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| JPH08302678A (en) * | 1995-05-10 | 1996-11-19 | Tokyo Seiko Co Ltd | Anchor with earth pressure plate |
| JP2000170164A (en) * | 1998-12-07 | 2000-06-20 | Nkk Corp | Screw type steel pipe pile, working method therefor and rotary drive equipment used therefor |
| CN2813709Y (en) * | 2005-08-24 | 2006-09-06 | 武中兴 | Anchor block |
| CN202187347U (en) * | 2011-08-04 | 2012-04-11 | 河南兰兴电力机械有限公司 | Vehicle-mounted ground anchor machine |
| KR101244992B1 (en) * | 2012-03-05 | 2013-03-18 | 윤홍기 | The ground anchor and the anchor construct method therewith |
| CN103247971A (en) * | 2013-05-24 | 2013-08-14 | 上海凡扬电力器具有限公司 | Portable three-phase conductor synchronous lifting holding pole |
| CN203307805U (en) * | 2013-06-07 | 2013-11-27 | 国家电网公司 | Spiral ground breaking earth anchor with earth anchor rotating operation rod |
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|---|---|
| CN104074191A (en) | 2014-10-01 |
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