CN104229691B - Mechanical and electric equipment installation mechanism of the basket lifting Dual-locking of the adjustable bucket of supporting leg electric substation - Google Patents
Mechanical and electric equipment installation mechanism of the basket lifting Dual-locking of the adjustable bucket of supporting leg electric substation Download PDFInfo
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- CN104229691B CN104229691B CN201410495222.5A CN201410495222A CN104229691B CN 104229691 B CN104229691 B CN 104229691B CN 201410495222 A CN201410495222 A CN 201410495222A CN 104229691 B CN104229691 B CN 104229691B
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Abstract
The invention discloses mechanical and electric equipment installation mechanism of the basket lifting Dual-locking of the adjustable bucket of a kind of supporting leg electric substation, comprise base pitch, telescopic joint on the column that is arranged on mechanism base, be mounted with the bucket basket as operating platform and loading on the top of telescopic joint, bottom at column base pitch is provided with counterweight trolley, and between counterweight trolley and telescopic joint, be provided with the anti-locking mechanism of anti-dumping rope and topple, the supporting leg of mechanism base is adjustable, is applicable to the operating location of ground injustice. Telescopic joint has auto-lock function in column base pitch, guarantee that telescopic joint cannot fall naturally, the lifting mechanism of telescopic joint has locking and braking function, can rest on arbitrary height, change the operation form of the interval equipment of the power transformation of manpower installation in the past, eliminate the potential safety hazard in installation exercise process, not only improved economic benefit, also promoted safety benefit.
Description
Technical field:
The present invention relates to mechanical and electric equipment installation mechanism of the basket lifting Dual-locking of the adjustable bucket of a kind of supporting leg electric substation.
Background technology:
The interval equipment configuration of power transformation of electric substation is tight short, and weight of equipment is large, specification unshapeliness, and inspection and repair work normality is carried out; The electric pressure of electric substation is high, and safety clearance is little, and exposed power supply point is many. Cause for above-mentioned reasons in converting equipment maintenance, detection, renewal process, large-scale work tool cannot use, and power failure range is large, and construction period is tight, and personnel's operation exists larger potential safety hazard. Therefore be necessary to research and develop special operating apparatus, guarantee to meet power transformation interval equipment dismounting, operating personnel safety guarantee and the job platform of effective and easy setting is provided.
Summary of the invention:
For overcoming the defect of prior art, the object of the present invention is to provide mechanical and electric equipment installation mechanism of the basket lifting Dual-locking of the adjustable bucket of a kind of supporting leg electric substation, it is simple in structure, lightweight, splits combination easy, and how also function convenient transport, and operating efficiency is high. Can meet all devices dismounting in the interval certain altitude of power transformation, safety belt is provided is the High Altitude Platform of hanging point and personnel's operation, reduces power failure range, ensures the requirement of safe spacing.
Technical solution problem of the present invention adopts following technical scheme:
Mechanical and electric equipment installation mechanism of the basket lifting Dual-locking of the adjustable bucket of supporting leg electric substation:
The base that sets up an organization, described base comprises four jiaos of adjustable for height cross supporting legs and is located at the universal wheel of described supporting leg bottom, base center is provided with the longitudinal sleeve being fixedly connected with supporting leg;
Described cross supporting leg is telescopic leg, telescopic outrigger locks by clamping screw, cross supporting leg corner location be provided with bolt hole, the height of landing leg mating with described bolt hole is set and adjusts bolt, the bottom of described adjustment bolt is ball, the bearing base of supporting leg is set, and described bearing base is provided with to hold adjusts the ball recess that bolt bottom ball rotates, and the block that setting is threaded with described bearing base is limited to described ball in ball recess;
Setting is plugged on the column on described sleeve, and the first half of described column is square tube;
Setting is plugged on the square-tube type column base pitch in the square tube of described column and is plugged on the supracoxal telescopic joint of described column, external wall of upper portion integral type at described telescopic joint is provided with limiting platform, the sidepiece of bucket basket is installed with laterally extending transverse arm, described bucket basket is articulated in the top of telescopic joint with the square casing on its transverse arm, and prevents from by the limiting platform of telescopic joint is spacing;
Counterweight trolley is set, and the sidepiece of described counterweight trolley is installed with laterally extending exhibition wall, and counterweight trolley is articulated on described column with the square casing on its exhibition wall; Counterweight trolley bottom is fixedly connected with by mechanism base and supports with mechanism base;
Between described counterweight trolley and the upper end of described telescopic joint, be also connected with anti-dumping rope;
The lifting mechanism of described telescopic joint is set, described lifting mechanism comprises: with the capsizing moment spindle of two capstan winches, described capsizing moment spindle is located at by bearing bracket stand on the mounting base of counterweight trolley exhibition wall front end, rear end at capsizing moment spindle is connected with handwheel, hoist braiding suspender belt one end connect firmly on the capsizing moment spindle between two capstan winches, the other end connects firmly on the braiding suspender belt fixed bar of telescopic joint bottom, on the fixed pulley that the Self-stabilised post base pitch outer wall top, middle part of braiding suspender belt arranges, walks around;
The Dual-locking mechanism of described telescopic joint is set:
The first lockable mechanism comprises: be rigidly attached to the pawl base of capsizing moment spindle front end by key, on described pawl base, be symmetrically connected with two ratchets by bearing pin, torsion spring; On the mounting base of dolly exhibition wall front end, be bolted ratchet brake mount, contact with described ratchet brake mount inner chamber seating plane with the rear end face of the ratchet of described two click-fit, the ratchet platen contacting with the front end face forming surface of described ratchet is set, the centre bore of described ratchet platen is threaded with brake handle and locks by locking nut, and the excircle of ratchet platen is threaded with described ratchet brake mount intracavity sidewall;
The second lockable mechanism comprises: the ratchet that is equidistantly installed with protrusion at a side outer wall of described telescopic joint from top to bottom, be provided with sour jujube bar mounting ear in the external wall of upper portion of described column base pitch, the sour jujube bar coordinating with described ratchet is arranged on described sour jujube bar mounting ear by bearing pin, torsion spring.
The top four limit outer walls of described column base pitch are provided with deep groove ball bearing, and a part for each described deep groove ball bearing extends into the inner chamber of column base pitch, and the axle of each deep groove ball bearing is laterally fixed on the outer wall of column base pitch; The bottom four limit inwalls of described telescopic joint are provided with bearing equally, and a part for each described bearing is extended the outside of telescopic joint, and the axle of each bearing is laterally fixed on the inwall of telescopic joint.
Compared with the prior art, beneficial effect of the present invention is embodied in:
The interval working space of electric substation's power transformation is limited, needs the equipment weight of maintenance, dismounting, for meeting lifting, the maintenance demand of this kind of particular job place controller switching equipment, mechanism structure of the present invention is simple, lightweight, splits combination easy, how also function convenient transport, and operating efficiency is high. Can meet all devices dismounting in the interval certain altitude of power transformation, safety belt is provided is the High Altitude Platform of hanging point and personnel's operation, reduces power failure range, ensures the requirement of safe spacing.
Use mechanism of the present invention in the time carrying out converting equipment installation, greatly reduce the on-the-spot cooperation personnel that install, not only improve work efficiency, reduce power off time simultaneously, reduce electric quantity loss, improved power supply reliability; Eliminate the potential safety hazard in installation exercise process, not only improved economic benefit, also promoted safety benefit.
Landing leg stretching length and supporting leg Height Adjustable, meets the construction requirement of complex-terrain in electric substation.
The individual member that jacking mast is made up of the base pitch being set with and telescopic joint, with support and the blue socket connection of bucket, connects freely easy; Base pitch and the telescopic joint relative motion of suit are light and handy, and bending resistance is strong.
Bucket indigo plant is personnel's job platform, and being provided with removable soft fence and ground connection safety wire, safety belt is hanging point, and fence height is set to 950mm, and the blue staff's stringcourse that struggles against is the accessible scope of operation above.
Driving mechanism and ratchet arrestment mechanism are realized the functions such as mast jacking, ratchet lock, braking contracting bar (bringing onto load), install by the commutation that changes click, also can realize brake self-locking function.
Self-locking mechanism is independent mast locking device, and mast telescopic joint often stretches out 50mm, realizes a ratchet kayser, and while guaranteeing lifting and personnel's operation, the unsettled of flexible mast stablized.
The anti-locking mechanism that inclines is made up of the anti-dumping rope being connected between counterweight trolley and telescopic joint upper end, and this is release mechanism, possesses and regulates flexible mast angle and tensioning mast function, can prevent that mast from toppling.
Supporting shoulder pole is to aim at 110kV isolating switch design, guarantees in its disassembly process that magnetic pillar is not subject to the effect of cross force and fractures or injured.
Counterweight trolley is actual is a blue structure of material, is sleeved on column, is connected transferable part base pitch root bending moment with telescopic arm base pitch bolt. Counterweight adopts 8,25kg bucket to be positioned in material basket, draws materials easily, and the also deficiency of throwing aside is cherished.
Brief description of the drawings:
Fig. 1 is general structure schematic diagram of the present invention; Fig. 2 is the assembling schematic diagram of mechanism base and column; Fig. 2 A is the enlarged drawing of cross supporting leg corner location; Fig. 2 B is the top view of mechanism base; Fig. 3 A, 3B, 3C are respectively left view, front view and the right view of column base pitch; Fig. 3 D is the assembling schematic diagram of column base pitch top four limit outer wall deep groove ball bearings; Fig. 4 A, 4B, 4C are respectively left view, front view and the right view of telescopic joint; Fig. 4 D is that the F of telescopic joint bottom in Fig. 4 B is to view; Fig. 4 E is the assembling schematic diagram of telescopic joint bottom four limit inwall bearings; Fig. 5 is the assembling schematic diagram of column base pitch and telescopic joint; Fig. 6 A, 6B are front view and the top view of bucket basket; Fig. 7 A, 7B are that the front view of counterweight trolley and top view, Fig. 7 C are that the E on counterweight trolley exhibition arm top in Fig. 7 A is to view; Fig. 8 is the schematic diagram of telescopic joint lockable mechanism; Fig. 8 A is the assembling schematic diagram of brake handle, locking nut, ratchet platen; Fig. 8 B is the top view of ratchet platen; Fig. 9 is the assembling schematic diagram of ratchet platen, ratchet, ratchet brake mount; Fig. 9 A, 9B are front view and the top view of ratchet; Figure 10 is the assembling schematic diagram of ratchet, pawl base, ratchet; Figure 11 is the assembling schematic diagram of pawl base, capsizing moment spindle, handwheel; Figure 12 is the assembling schematic diagram of capsizing moment spindle, pawl base, ratchet.
Number in the figure: 1 mechanism base, 101 supporting legs, 102 universal wheels, 104 longitudinal sleeves, 105 columns, 107 adjust bolt, 108 bearing bases, 109 blocks, 2 column base pitch, 201 deep groove ball bearings, 202 sour jujube bar mounting ears, 203 sour jujube bars, 3 telescopic joints, 301 limiting platforms, 302 suspender belt fixed bars, 303 bearings, 304 ratchets, 4 bucket baskets, 401 transverse arms, 5 counterweight trolleys, 501 exhibition arms, 503 anti-dumping ropes, 504 mounting bases, 601 capsizing moment spindles, the 602 braiding suspender belts that hoist, 603 handwheels, 701 pawl bases, 702 ratchets, 703 ratchet brake mounts, 704 ratchets, 705 ratchet platens, 706 brake handles, 707 locking nuts.
Below pass through detailed description of the invention, and the invention will be further described by reference to the accompanying drawings.
Detailed description of the invention:
Embodiment: referring to accompanying drawing, mechanical and electric equipment installation mechanism of the basket lifting Dual-locking of the adjustable bucket of the supporting leg of the present embodiment electric substation, its following structural features:
The base 1 that sets up an organization, base comprises four jiaos of adjustable for height cross supporting legs 101 and is located at the universal wheel 102 of supporting leg bottom, base center is provided with the longitudinal sleeve 104 being fixedly connected with supporting leg.
In specifically arranging, cross supporting leg 101 is telescopic leg, Retractive leg is inserted in Convenient table, Retractive leg locks by clamping screw, corner location at cross supporting leg (Retractive leg) is provided with bolt hole, the height of landing leg mating with bolt hole is set and adjusts bolt 107, the bottom of adjusting bolt is ball, the bearing base 108 of supporting leg is set, on bearing base, be provided with to hold and adjust the ball recess that bolt bottom ball rotates, and the block 109 that setting is threaded with bearing base 108 is limited to ball in ball recess.
Setting is plugged on the column 105 on sleeve 104, and the first half of column is square tube; Setting is plugged on the square-tube type column base pitch 2 in the square tube of column and is plugged on the telescopic joint 3 on column base pitch 2, external wall of upper portion integral type at telescopic joint 3 is provided with limiting platform 301, the sidepiece of bucket basket 4 is installed with laterally extending transverse arm 401, this bucket basket is articulated in the top of telescopic joint with the square casing on its transverse arm, and prevents from by the limiting platform of telescopic joint is spacing.
Counterweight trolley 5 is set, and the sidepiece of counterweight trolley is installed with laterally extending exhibition arm 501, and counterweight trolley is articulated on column 105 with the square casing on its exhibition arm, and counterweight trolley bottom is fixedly connected with by mechanism base and supports with mechanism base; Between counterweight trolley and the upper end of telescopic joint, be also connected with anti-dumping rope 503, prevent that whole mechanism from toppling, improve safety coefficient. In specifically arranging, be provided with bolt slot 505 at the top of counterweight trolley exhibition arm 501, the lower sides of column base pitch 2 is provided with the bolt corresponding with dolly exhibition arm bolt groove position of protrusion, by the further fixed weight dolly of this bolt.
The lifting mechanism of telescopic joint 3 is set, this lifting mechanism comprises: with the capsizing moment spindle 601 of two capstan winches, capsizing moment spindle is located at by bearing bracket stand on the mounting base 504 of counterweight trolley exhibition arm 501 front ends, be connected with handwheel 603 in the rear end of capsizing moment spindle, hoist braiding suspender belt 602 one end connect firmly on the capsizing moment spindle 601 between two capstan winches, the other end connects firmly on the braiding suspender belt fixed bar 302 of telescopic joint 3 bottoms, on the fixed pulley that the middle part Self-stabilised post base pitch 2 outer wall tops of the braiding suspender belt 602 that hoists arrange, walks around.
The Dual-locking mechanism that telescopic joint 3 is set, the first lockable mechanism comprises: be rigidly attached to the pawl base 701 of capsizing moment spindle 601 front ends by key, on pawl base, be symmetrically connected with two ratchets 702 by bearing pin, torsion spring; On the mounting base of dolly exhibition arm front end, be bolted ratchet brake mount 703, the rear end face of the ratchet 704 coordinating with two ratchets 702 contacts with ratchet brake mount 703 inner chamber seating planes, the ratchet platen 705 contacting with the front end face forming surface of ratchet is set, the centre bore of ratchet platen is threaded with brake handle 706 and locks by locking nut 707, and the excircle of ratchet platen is threaded with ratchet brake mount intracavity sidewall.
The second lockable mechanism comprises: the ratchet 304 that is equidistantly installed with protrusion at a side outer wall of telescopic joint 3 from top to bottom, be provided with sour jujube bar mounting ear 202 in the external wall of upper portion of column base pitch 2, the sour jujube bar 203 coordinating with ratchet is arranged on sour jujube bar mounting ear 202 by bearing pin, torsion spring, and the square hole at a part of Self-stabilised post base pitch sour jujube bar mounting ear place of sour jujube bar 203 stretches in column base pitch and forms and coordinate with the ratchet 304 of telescopic joint outer wall. Telescopic joint often stretches out 50mm, realizes a ratchet kayser, and while guaranteeing lifting and personnel's operation, the unsettled of telescopic joint stablized.
The top four limit outer walls of column base pitch 2 are provided with deep groove ball bearing 201, and a part for each deep groove ball bearing extends into the inner chamber of column base pitch, and the axle of each deep groove ball bearing is laterally fixed on the outer wall of column base pitch; The bottom four limit inwalls of telescopic joint 3 are provided with bearing 303 equally, and a part for each bearing 303 is extended the outside of telescopic joint, and the axle of each bearing is laterally fixed on the inwall of telescopic joint.
In concrete application, when needs hoist bucket when basket 4 time, forward rotation handwheel 603, handwheel drives capsizing moment spindle 601 to rotate and be wound around suspender belt 602, suspender belt drives telescopic joint 3 in the interior rising of column base pitch 2, because the friction between column base pitch 2 and telescopic joint 3 is rolling friction (effect of deep groove ball bearing 201 and bearing 303), so playing lift does not need much, when telescopic joint 3 rises to after specified altitude assignment, handwheel 603 stops operating, due to ratchet, the effect of ratchet, telescopic joint can rest on arbitrary height, now, between ratchet platen 705 and brake handle 706, be integrated by locking nut 707 lockings, and ratchet platen 705 being screwed in ratchet brake mount 703 by its excircle, ratchet platen 705 and ratchet brake mount 703 from two end faces of ratchet 704 by locked ratchet the inner chamber of ratchet brake mount 703, ratchet 704 is controlled pawl base 701 can only one-directional rotation, because pawl base 701 is rigidly attached on capsizing moment spindle 601, therefore handwheel 603 can only forward rotation, guarantee that telescopic joint 3 can rest on arbitrary height in the time rising. in addition, because the sour jujube bar 203 on column base pitch top blocks the ratchet 304 of telescopic joint outer wall, guarantee that telescopic joint can only unidirectionally rise, cannot fall, operating personnel's safety has been played to the effect of double shield. in the time that needs fall bucket in the key, first remove spacing to ratchet 304 of sour jujube bar 203, then rotate backward a little brake handle 706, now ratchet platen 705 also exits a bit slightly in ratchet brake mount 703, ratchet platen 705 reduces the pressure of ratchet 704, therefore ratchet 704 can be in the interior idle running of ratchet brake mount 703, due to the effect of gravity, bucket basket 4 declines with telescopic joint 3, drive capsizing moment spindle 601 to reverse, capsizing moment spindle drives pawl base and ratchet, ratchet drives ratchet idle running, in the time that needs stop telescopic joint, only need forward rotation brake handle 706, by locked ratchet in ratchet brake mount.
Claims (2)
1. mechanical and electric equipment installation mechanism of the basket lifting Dual-locking of the adjustable bucket of supporting leg electric substation, is characterized in that:
Base (1) sets up an organization, described base comprises four jiaos of adjustable for height cross supporting legs (101) and is located at the universal wheel (102) of described supporting leg bottom, and base center is provided with the longitudinal sleeve (104) being fixedly connected with supporting leg;
Described cross supporting leg (101) is telescopic leg, telescopic leg locks by clamping screw, cross supporting leg corner location be provided with bolt hole, the height of landing leg mating with described bolt hole is set and adjusts bolt (107), the bottom of described adjustment bolt is ball, the bearing base (108) of supporting leg is set, described bearing base is provided with to hold adjusts the ball recess that bolt bottom ball rotates, and the block (109) that setting is threaded with described bearing base (108) is limited to described ball in ball recess;
Setting is plugged on the column (105) on described longitudinal sleeve (104), and the first half of described column is square tube;
Setting is plugged on the square-tube type column base pitch (2) in the square tube of described column and is plugged on the telescopic joint (3) on described column base pitch (2), be provided with limiting platform (301) in the external wall of upper portion integral type of described telescopic joint (3), the sidepiece of bucket basket (4) is installed with laterally extending transverse arm (401), described bucket basket is articulated in the top of telescopic joint with the square casing on its transverse arm, and prevents from by the limiting platform of telescopic joint is spacing;
Counterweight trolley (5) is set, and the sidepiece of described counterweight trolley is installed with laterally extending exhibition wall (501), and counterweight trolley is articulated on described column (105) with the square casing on its exhibition wall; Counterweight trolley bottom is fixedly connected with by mechanism base and supports with mechanism base;
Between described counterweight trolley and the upper end of described telescopic joint, be also connected with anti-dumping rope (503);
The lifting mechanism of described telescopic joint (3) is set, described lifting mechanism comprises: with the capsizing moment spindle (601) of two capstan winches, described capsizing moment spindle is located at by bearing bracket stand on the mounting base (504) of counterweight trolley exhibition wall (501) front end, be connected with handwheel (603) in the rear end of capsizing moment spindle, hoist braiding suspender belt (602) one end connect firmly on the capsizing moment spindle between two capstan winches (601), the other end connects firmly on the braiding suspender belt fixed bar (302) of telescopic joint (3) bottom, hoist braiding suspender belt (602) middle part Self-stabilised post base pitch (2) outer wall top arrange fixed pulley on walk around,
The Dual-locking mechanism of described telescopic joint (3) is set:
The first lockable mechanism comprises: be rigidly attached to the pawl base (701) of capsizing moment spindle (601) front end by key, on described pawl base, be symmetrically connected with two ratchets (702) by bearing pin, torsion spring; On the mounting base of dolly exhibition wall front end, be bolted ratchet brake mount (703), the rear end face of the ratchet (704) coordinating with described two ratchets (702) contacts with described ratchet brake mount (703) inner chamber seating plane, the ratchet platen (705) contacting with the front end face forming surface of described ratchet is set, the centre bore of described ratchet platen is threaded with brake handle (706) and passes through locking nut (707) locking, and the excircle of ratchet platen is threaded with described ratchet brake mount intracavity sidewall;
The second lockable mechanism comprises: the ratchet that is equidistantly installed with protrusion at a side outer wall of described telescopic joint (3) from top to bottom, be provided with sour jujube bar mounting ear (202) in the external wall of upper portion of described column base pitch (2), the sour jujube bar (203) coordinating with described ratchet is arranged on described sour jujube bar mounting ear by bearing pin, torsion spring.
2. mechanical and electric equipment installation mechanism of the basket lifting Dual-locking of the adjustable bucket of supporting leg according to claim 1 electric substation, it is characterized in that: the top four limit outer walls of described column base pitch (2) are provided with deep groove ball bearing (201), a part for each described deep groove ball bearing extends into the inner chamber of column base pitch, and the axle of each deep groove ball bearing is laterally fixed on the outer wall of column base pitch; The bottom four limit inwalls of described telescopic joint (3) are provided with bearing (303) equally, the outside that a part for each described bearing (303) is extended telescopic joint, and the axle of each bearing is laterally fixed on the inwall of telescopic joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410495222.5A CN104229691B (en) | 2014-09-24 | 2014-09-24 | Mechanical and electric equipment installation mechanism of the basket lifting Dual-locking of the adjustable bucket of supporting leg electric substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410495222.5A CN104229691B (en) | 2014-09-24 | 2014-09-24 | Mechanical and electric equipment installation mechanism of the basket lifting Dual-locking of the adjustable bucket of supporting leg electric substation |
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| Publication Number | Publication Date |
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| CN104229691A CN104229691A (en) | 2014-12-24 |
| CN104229691B true CN104229691B (en) | 2016-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410495222.5A Active CN104229691B (en) | 2014-09-24 | 2014-09-24 | Mechanical and electric equipment installation mechanism of the basket lifting Dual-locking of the adjustable bucket of supporting leg electric substation |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114650869A (en) * | 2019-11-21 | 2022-06-21 | 3M创新有限公司 | Falling protection system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5271482A (en) * | 1992-06-05 | 1993-12-21 | Lowell Lift, Inc. | Electric light weight portable scaffolding |
| CN201214619Y (en) * | 2008-06-18 | 2009-04-01 | 中国科学院沈阳应用生态研究所 | Simple manual lifting rod |
| CN202945031U (en) * | 2012-11-05 | 2013-05-22 | 湖南省电力公司娄底电业局 | Comprehensive insulation lifting platform |
| CN103663302A (en) * | 2013-12-12 | 2014-03-26 | 无锡华科机械设备有限公司 | L-type portal installation frame |
| CN204039004U (en) * | 2014-09-24 | 2014-12-24 | 国家电网公司 | Mechanical and electric equipment installation mechanism of the adjustable bucket of supporting leg basket lifting Dual-locking substation |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8863899B2 (en) * | 2011-06-29 | 2014-10-21 | Reechcraft, Inc. | Lift safety system |
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2014
- 2014-09-24 CN CN201410495222.5A patent/CN104229691B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5271482A (en) * | 1992-06-05 | 1993-12-21 | Lowell Lift, Inc. | Electric light weight portable scaffolding |
| CN201214619Y (en) * | 2008-06-18 | 2009-04-01 | 中国科学院沈阳应用生态研究所 | Simple manual lifting rod |
| CN202945031U (en) * | 2012-11-05 | 2013-05-22 | 湖南省电力公司娄底电业局 | Comprehensive insulation lifting platform |
| CN103663302A (en) * | 2013-12-12 | 2014-03-26 | 无锡华科机械设备有限公司 | L-type portal installation frame |
| CN204039004U (en) * | 2014-09-24 | 2014-12-24 | 国家电网公司 | Mechanical and electric equipment installation mechanism of the adjustable bucket of supporting leg basket lifting Dual-locking substation |
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| CN104229691A (en) | 2014-12-24 |
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