CN104466793B - Portable aloft lifting device - Google Patents
Portable aloft lifting device Download PDFInfo
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- CN104466793B CN104466793B CN201410723126.1A CN201410723126A CN104466793B CN 104466793 B CN104466793 B CN 104466793B CN 201410723126 A CN201410723126 A CN 201410723126A CN 104466793 B CN104466793 B CN 104466793B
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- ratchet
- lifting device
- wheel
- framework
- locating rod
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Abstract
The invention discloses a portable aloft lifting device. The portable aloft lifting device comprises a locking mechanism, a frame, a power mechanism, a lifting and conveying mechanism and a safety ratchet mechanism, wherein a twisted rope wheel is arranged in the frame. The safety ratchet mechanism comprises a ratchet and a positioning plate, wherein the ratchet is coaxially connected with the twisted rope wheel, the plate body of the positioning plate is hinged to the side wall of the frame, a pawl matched with the ratchet is arranged at the front end of the positioning plate, a protruding portion is arranged at the end, away from the pawl, of the positioning plate, a through hole penetrating through the protruding portion and the portion, corresponding to the protruding portion, of the positioning plate is formed in the protruding portion, a positioning rod is arranged in the through hole, a positioning protrusion matched with the positioning hole in the side wall of the frame is arranged at the front end of the positioning rod, and the safety ratchet mechanism further comprises a torsional spring which makes the pawl and the ratchet tightly meshed. Due to the adoption of the structure, the portable aloft lifting device has the advantages of being small in size, light in weight, easy to install, high in work efficiency, simple in structure and high in adaptability and safety.
Description
Technical field
The present invention relates to a kind of transmission line high-altitude power tool lifting device, especially a kind of portable high-altitude lifting dress
Put.
Background technology
With economic fast development, social, long distance transmission line electric pressure increasing to power demand
Constantly raise therewith, transmission line length is also continuously increased, electric power line pole tower height also constantly increases.At present, single loop 220
35 meters about of KV shaft tower average height, 50 meters about of double loop 220 KV shaft tower average height；Single loop 500
About 45 meters about of KV shaft tower average height, about 65 meters about of double loop 500 KV shaft tower average height；Double loop
1000 KV steel tower average heights are then at 100 meters about.
It is continuously increased with transmission line length, circuit high-altitude maintenance, construction operation amount are also continuously increased.But high voltage
Grade, big height shaft tower bring great difficulty to circuit high-altitude maintenance, construction operation etc..Carry out high-altitude work in transmission line of electricity
During industry, traditional operating type is: operating personnel generally need to carry with transmission working rope and step on tower and carry out high-rise working, for passing
Pass the Work tool needing to use in work and material.When work high above the ground personnel carry, rice up to a hundred are long, weigh ten how many transmission ropes
When stepping on tower, not only greatly consume the muscle power of operating personnel, and inefficiency, meanwhile, this traditional operating type
There is certain potential safety hazard.So, each high-altitude maintenance, construction operation work must need to put into substantial amounts of human and material resources, make
Industry personnel need to spend bigger strength to complete a job, and difficulty of construction is big, and the cost of construction operation is very high.
Therefore prior art need to improve and develops.
Content of the invention
The technical problem to be solved in the present invention be provide a kind of light and handy, be easy to assembling, simple to operate, strong adaptability, save time
Laborsaving, simultaneously can also effectively prevent lifted operation process in weight suddenly fall cause security incident transmission line high-altitude
Lifting device, obtains the instrument required for operation in order to workmen height is in the air from ground.
For solving above-mentioned technical problem, the portable high-altitude lifting device of the present invention, it is fixed on including by this lifting device
In fastening member retaining mechanism, be built-in with the framework of twisted rope wheel, be placed in described framework side and be used for driving described twisted rope wheel
The actuating unit of rotation, the hoisting mechanism being connected with twisted rope wheel by twisted rope, and it is placed in the safe spine of described framework opposite side
Wheel mechanism, wherein, described safe ratchet mechanism includes the ratchet coaxially connected with twisted rope wheel, and plate body is hinged with frame side wall
Location-plate；Described location-plate one end is provided with the ratchet being adapted with ratchet；The described location-plate other end deviates from described framework side
Wall direction is provided with protuberance, and described protuberance offers through protuberance and the location-plate corresponding with lug position
Through hole, is provided with locating rod in described through hole, described locating rod is front end towards one end of described frame side wall, before described locating rod
Hold the positioning convex that the location hole being provided with and being arranged on frame side wall is adapted, described safe ratchet mechanism is additionally provided with and makes institute
State the torsion spring that ratchet is tightly engaged with described ratchet.
In technique scheme, lifting device of the present invention can be fixed on including but not limited to cross arm of tower by retaining mechanism
Lower section, will not produce and rock during lifting operation to realize this lifting device, under the driving of actuating unit, twisted rope wheel
Rotation twisted rope, by the instrument required for hoisting mechanism lifting or object；The safe ratchet mechanism of present invention setting, by spine
Wheel and the engaging of ratchet, the torque arm of one end is buckled in the ratchet back side, and applies certain torsion to it, down to ratchet all the time with peace
The ratchet back side of full ratchet is close to, to reach the effect preventing ratchet reversion and moment stop；Lifting device in the present invention
In lifting operation process, this device occurs mechanical stuck or lacks suddenly power source, and weight has downwards under gravity
The trend of motion, so that twisted rope wheel has the trend of reversion；Ratchet is coaxially connected with twisted rope wheel, prevents instead making ratchet
By twisted rope wheel moment stop while turning, effectively prevent the accident that in operation process, weight falls suddenly from occurring.Then will position
Plate winding board body is rotated to an angle so that the positioning convex insertion of locating rod front end is arranged on framework with the pin joint of frame side wall
The location hole of side wall, that is, achieve the disengaging of ratchet and ratchet so that ratchet can invert, and twisted rope wheel reversion simultaneously can be transferred
Weight is to ground.
Using above structure, the present invention has that safe, structure is simple, operate with simple advantage.
As another improvement of the present invention, described protuberance rear end side wall is provided with locating slot, and described locating rod is away from fixed
The raised one end outer surface in position is provided with the locating piece matching with described locating slot relatively, and described locating piece is vertical along its length
In described locating rod along its length, described protuberance inwall is provided with circular bearing ring；Be in below described positioning convex with
Positions stem segment position outer surface above the corresponding locating rod of described bearing ring is provided with bulge loop, in described bulge loop and described pressure-bearing
It is provided with the first compression elastic piece, described first compression elastic piece is sleeved on outside described locating rod, described locating rod end between ring
It is fixedly connected with for rotational positioning bar so that described locating piece is placed in the button of pulling back in locating slot.Protuberance is permissible with location-plate
To be integrally formed or volume fixed by protuberance and location-plate, the first compression elastic piece between bulge loop and bearing ring so that
Locating rod receives power forward, rotates to the position being provided with location hole in location-plate, locating rod is in the effect of the power receiving forward
Under, forward extend out so that the positioning convex insertion location hole being placed in locating rod front end matches, there is preferably present along locating rod
To the power in location hole direction so that positioning convex and location hole cooperation are more firm.It is placed in the button of pulling back of positioning rod rear end, convenient
Locating rod is pulled back by operating personnel so that positioning convex is departed from location hole, then rotates back to pull-button certain angle and makes, fixed
Position block is placed in locating slot, and locating rod is fixed.In the presence of torsion spring, the ratchet of front end and ratchet tightly engage location-plate, make
More convenient intelligence must be operated.
Preferably, the holding section that described retaining mechanism includes seat belt and is placed in described seat belt two ends, and respectively
It is placed in the snap fit portion of described framework both sides；Described holding section and the phase clamping of described snap fit portion.Can not only be realized this
Fixation with the cross arm of tower convenient disassembly simultaneously of invention.Certainly retaining mechanism can also fix safety using two ends with framework
Restrict or roll device, as long as be capable of the present invention consolidating and convenient disassembly in operation.
For making technical scheme more perfect, described actuating unit includes power input shaft, planetary gear list
Unit, power output shaft；Described planetary gear unit includes, centre wheel, can turn around the power input shaft in centrally disposed wheel
Dynamic pinion frame, is arranged at least one planetary gear on pinion frame, and rim gear wheel, described centre wheel and row
Star-wheel engages, and described planetary gear is engaged with rim gear wheel；Described power output shaft is fixedly connected with pinion frame, and described power is defeated
Enter the external crank being provided with power of axle or electric rotating machine.This planetary gear unit has small volume, lightweight, bearing capacity
Height, long service life, smooth running, noise is low, output torque is big, and speed ratio is big, the feature of transmission efficiency, performance safety.And
The private characteristic of tool power dividing, multiple tooth engagement.
As a further improvement on the present invention, described hoisting mechanism include top be fixedly connected with twisted rope, lower end have recessed
The cylinder of shape hook, is built in the compression leg body in described cylinder, and the second compression elastic piece, and described compression leg external surface is along cylinder
Body central axis upright direction stretches out and is provided with compression leg handle, and described cylinder two lateral walls offer for described compression leg handle
Along cylinder chute in axial sliding, described second compression elastic piece is placed in described cylinder and one end is connected with described compression leg body upper end
Connect, the other end is connected with described cylinder top lower surface, described compression leg body lower surface forms to place with described female clevis and carries
Rise the sealing accommodating chamber of object rope.This hoisting mechanism has structure simply, and easy to use, transportation safety, when improve handling
Degree of stability, during goods handling can be prevented effectively from, occur rope come off.
In sum, the present invention can manually or electric-powered manner provides power source with lifting heavy to this device be lifted
During can terminate the power supply of power source at any time, terminate power source instantly safe ratchet mechanism and react rapidly, thus
Ensure that the accident occurring weight to fall because the gravity of weight itself produces moment reverse.The present invention has simultaneously: small volume
Lightweight, install simple, time saving and energy saving, working performance is high, and structure is simple, and strong adaptability has safe advantage concurrently simultaneously.
Brief description
Fig. 1 is axonometric chart of the present invention；
Fig. 2 is another angle axonometric chart of the present invention；
Fig. 3 is safe ratchet mechanism enlarged drawing；
Fig. 4 is the sectional view along a-a direction for the location-plate；
Fig. 5 is phantom of the present invention；
Fig. 6 is Fig. 5 along b-b direction sectional view；
Fig. 7 is hoisting mechanism enlarged drawing.
Specific embodiment
For making the objects, technical solutions and advantages of the present invention clearer, clear and definite, develop simultaneously embodiment pair referring to the drawings
The present invention further describes.
Embodiment 1, referring to the portable high-altitude lifting device of Fig. 1 to Fig. 4 present invention, is fixed on including by this lifting device
Retaining mechanism 1 in fastening member, is built-in with the framework 2 of twisted rope wheel 21, is placed in described framework 2 side and is used for driving described twisted rope
The actuating unit 3 of 21 turns of wheel rotation, the hoisting mechanism 4 being connected with twisted rope wheel 21 by twisted rope 211, and it is another to be placed in described framework 2
The safe ratchet mechanism 5 for preventing twisted rope wheel 21 reversion of side, wherein, described safe ratchet mechanism 5 includes and twisted rope wheel
21 coaxially connected ratchets 51, and the location-plate 52 that plate body is side walls hinged with framework 2；Described location-plate 52 one end is provided with and spine
The ratchet 521 that wheel 51 is adapted；Described location-plate 52 other end is provided with the protuberance 522 deviating from described framework 2 sidewall direction, institute
State protuberance 522 and offer the through hole through this protuberance 522 and the location-plate 52 corresponding with this protuberance 522 position
523, it is provided with locating rod 524 in described through hole 523, described locating rod 524 is front end towards one end of described frame side wall, described
The positioning convex 525 that locating rod 524 front end is provided with and the location hole 21 that is arranged on framework 2 side wall is adapted, described safe spine
Wheel mechanism 5 is additionally provided with the torsion spring 53 making described ratchet 521 tightly engage with described ratchet 51.
Further, described protuberance 522 rear end side wall is provided with locating slot 526, the remotely located projection of described locating rod 524
525 one end outer surface is provided with the locating piece 527 matching with described locating slot 526, described locating piece 527 along its length with
Described locating rod 524 is vertical along its length.
Further, described protuberance 522 inwall is provided with circular bearing ring 5221, is in described positioning convex 525
The locating rod 524 portion outer surface of lower section locating rod 524 top corresponding with described bearing ring 5221 is provided with bulge loop 5241,
It is provided with the first compression elastic piece 528, described first compression elastic piece 528 between described bulge loop 5241 and described bearing ring 5221
It is sleeved on outside described locating rod 524.
Preferably, described locating rod 524 end is fixedly connected with and makes described locating piece 527 for rotational positioning bar 524
It is placed in the button 529 of pulling back in locating slot 526.
For improving technical scheme further, referring to retaining mechanism described in Fig. 5 to Fig. 71 include seat belt 11 with
And it is placed in the holding section 12 at described seat belt 11 two ends, and the snap fit portion 13 being respectively placed in described framework 2 both sides；Described
Holding section 12 and described snap fit portion 13 phase clamping.
Wherein, described actuating unit 3 includes power input shaft 31, planetary gear unit 32, power output shaft 33；Described row
Star gear unit 32 includes centre wheel 321, the planetary gear that can rotate around the power input shaft 31 in centrally disposed wheel 321
Frame 322, is arranged at least one planetary gear 323 on pinion frame 322, and rim gear wheel 324, described centre wheel 321 with
Planetary gear 323 engages, and described planetary gear 323 is engaged with rim gear wheel 324；Described power output shaft 33 is solid with pinion frame 322
Fixed connect, the external crank being provided with power of described power input shaft 31 or electric rotating machine.Described hoisting mechanism 4 include top with
Twisted rope 211 is fixedly connected, lower end has the cylinder 41 of female clevis 411, is built in the compression leg body 42 in described cylinder 41, and
Second compression elastic piece 43；Described compression leg body 42 outer surface stretches out along cylinder 41 central axis upright direction and is provided with compression leg handss
Handle 421, described cylinder 41 two side offers for described compression leg handle 421 relatively along cylinder 41 chute 412 in axial sliding, institute
State that the second compression elastic piece 43 is placed in described cylinder 41 and one end is connected with described compression leg body 42 upper end, the other end and described cylinder
Body 41 top lower surface connects.Described compression leg body 42 lower surface and described female clevis 411 are formed can place lifting object rope
Sealing accommodating chamber.
The use process of the present invention is as follows:
Staff carry the present invention lifting device climb up shaft tower after, passed through tight by the seat belt 11 of retaining mechanism 1
Gu holding section 12 insertion apparatus by its two ends of component, can by lifting device just in the snap fit portion 13 on framework both sides
It is arranged in the fastening member of shaft tower promptly, install very convenient.Compression leg handle 421 is slided along cylinder 41 top so that
Compression leg body 42 is separated with female clevis 411, the rope of lifting object is put into described sealing accommodating chamber, unclamps compression leg handle 421,
Second compression elastic piece 43 will be pushed down handle 421 and down slide, drive compression leg body 42 down move so that compression leg body 42 and
Female clevis 411 form sealing accommodating chamber it is ensured that rope will not come off it is ensured that the safety of lifting process from sealing accommodating chamber.
Then manually rotating crank or made by electric rotating machine, power input shaft 31 rotates, thus driving planetary gear list
Unit 32 operation, that is, export power, power output shaft 33 is fixedly connected with twisted rope wheel 21, thus realizing the rotation of twisted rope wheel 21, this
When twisted rope 211 and hoisting mechanism 4 then do with the rotation of twisted rope wheel 21 rise, descending motion, high-altitude lifting heavy is realized with this.
In addition the present invention is additionally provided with safe ratchet mechanism 5, can prevent weight moment in lifting operation process from reversing and fall.Safe ratchet
The ratchet 51 of mechanism 5 and ratchet 521 keep tightly engaging so that the present invention can be with lifting process in the active force of torsion spring 53
When terminate power source power supply, terminate power source instantly safe ratchet mechanism 5 react rapidly, thus preventing because of weight
Itself gravity produces moment and reverses and the accident that weight falls occurs.Need to decline weight after stop of the present invention, then will determine
Position plate 52 around location-plate 52 and frame side wall pin joint turn an angle so that locating rod 524 front end positioning convex
525 corresponding with location hole 22 position when, locating rod 524 in the presence of the first compression elastic piece 528, positioning convex 525 insert
Enter location hole 22, it is achieved thereby that the positioning action of location-plate 52 is so that the disengaging of ratchet 521 and ratchet 51, now twisted rope wheel
21 can invert and decline weight.After the completion of declining, pull button 529 of pulling back backward and make locating piece 527 arrive locating slot 526
Position, rotates back to pull-button 529 so that locating piece 527 is placed in locating slot 526, location-plate 52 makes in the presence of torsion spring 53
Ratchet 521 be fitted close again with ratchet 51, reached prevent twisted rope wheel 21 from turning round and moment stop function.
Above-listed detailed description is illustrating for possible embodiments of the present invention, and this embodiment simultaneously is not used to limit this
Bright the scope of the claims, all equivalence enforcements done without departing from the present invention or change, are intended to be limited solely by the scope of the claims of this case.
Claims (8)
1. a kind of portable high-altitude lifting device, including the retaining mechanism (1) being fixed on this lifting device in fastening member, interior
It is equipped with the framework (2) of twisted rope wheel (21), be placed in the engine that described framework (2) side is used for driving described twisted rope wheel (21) to rotate
Structure (3), the hoisting mechanism (4) being connected with twisted rope wheel (21) by twisted rope (211), and it is placed in described framework (2) opposite side
Safe ratchet mechanism (5) is it is characterised in that described safe ratchet mechanism (5) includes the ratchet coaxially connected with twisted rope wheel (21)
, and plate body and the side walls hinged location-plate (52) of described framework (2) (51)；Described location-plate (52) one end is provided with and ratchet
(51) ratchet (521) being adapted；Described location-plate (52) other end is provided with the protuberance deviating from described framework (2) sidewall direction
(522), described protuberance (522) offers the through hole (523) through this protuberance (522) and described location-plate (52),
It is provided with locating rod (524), described locating rod (524) is front towards one end of described framework (2) side wall in described through hole (523)
End, the positioning convex that described locating rod (524) front end is provided with and the location hole (22) that is arranged on the wall of framework (2) side is adapted
(525), described safe ratchet mechanism (5) is additionally provided with the torsion spring making described ratchet (521) and described ratchet (51) tightly engage
(53), described protuberance (522) rear end side wall is provided with locating slot (526), described locating rod (524) remotely located raised (525)
One end outer surface be provided with the locating piece (527) matching with described locating slot (526), described locating piece (527) is along length side
To vertical along its length with described locating rod (524).
2. a kind of portable high-altitude lifting device according to claim 1 is it is characterised in that described protuberance (522) is interior
Wall is provided with circular bearing ring (5221)；It is corresponding fixed with described bearing ring (5221) below described positioning convex (525) to be in
Locating rod (524) portion outer surface above position bar (524) is provided with bulge loop (5241), described bulge loop (5241) with described
It is provided with the first compression elastic piece (528), described first compression elastic piece (528) is sleeved on described positioning between bearing ring (5221)
Bar (524) is outward.
3. a kind of portable high-altitude lifting device according to claim 2 is it is characterised in that described locating rod (524)
End is fixedly connected with for rotational positioning bar (524) so that described locating piece (527) is placed in the button of pulling back in locating slot (526)
(529).
4. a kind of portable high-altitude lifting device according to claim 1 is it is characterised in that described retaining mechanism (1) wraps
Include seat belt (11) and the holding section (12) being placed in described seat belt (11) two ends, and be respectively placed in described framework (2) two
The snap fit portion (13) of side；Described holding section (12) and the phase clamping of described snap fit portion (13).
5. a kind of portable high-altitude lifting device according to claim 1 is it is characterised in that described actuating unit (3) wraps
Include power input shaft (31), planetary gear unit (32), power output shaft (33)；Described planetary gear unit (32) includes center
Wheel (321), the pinion frame (322) that can rotate around the power input shaft (31) in centrally disposed wheel (321), it is arranged on
At least one planetary gear (323) on pinion frame (322), and rim gear wheel (324), described centre wheel (321) and planet
Wheel (323) engagement, described planetary gear (323) is engaged with rim gear wheel (324)；Described power output shaft (33) and pinion frame
(322) it is fixedly connected.
6. a kind of portable high-altitude lifting device according to claim 5 is it is characterised in that described power input shaft (31)
The external crank being provided with power or electric rotating machine.
7. a kind of portable high-altitude lifting device according to claim 1 is it is characterised in that described hoisting mechanism (4) wraps
Include that top is fixedly connected with twisted rope (211), lower end has the cylinder (41) of female clevis (411), be built in described cylinder (41)
In compression leg body (42), and the second compression elastic piece (43)；Described compression leg body (42) outer surface is along described cylinder (41) center
Axis vertical direction stretches out and is provided with compression leg handle (421), and described cylinder (41) side wall offers relatively for described compression leg handss
Handle (421) is placed in described cylinder (41) along cylinder (41) chute (412) in axial sliding, described second compression elastic piece (43)
And one end is connected with described compression leg body (42) upper end, the other end is connected with described cylinder (41) top lower surface.
8. a kind of portable high-altitude lifting device according to claim 7 is it is characterised in that described compression leg body (42) lower end
Face forms, with described female clevis (411), the sealing accommodating chamber that can place lifting object rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410723126.1A CN104466793B (en) | 2014-12-03 | 2014-12-03 | Portable aloft lifting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410723126.1A CN104466793B (en) | 2014-12-03 | 2014-12-03 | Portable aloft lifting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104466793A CN104466793A (en) | 2015-03-25 |
| CN104466793B true CN104466793B (en) | 2017-02-01 |
Family
ID=52912399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410723126.1A Active CN104466793B (en) | 2014-12-03 | 2014-12-03 | Portable aloft lifting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104466793B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106877243B (en) * | 2015-12-16 | 2018-07-31 | 泉州台商投资区华奥电子科技有限公司 | A kind of high voltage cable elevator |
| CN105703278B (en) * | 2016-04-26 | 2017-09-22 | 邹平县供电公司 | A kind of device and application method for aerial earth wire |
| CN114268056B (en) * | 2021-12-01 | 2023-10-17 | 国网山东省电力公司临沂供电公司 | Special tool for disassembling 10kV indoor cable terminal |
| CN114380222B (en) * | 2021-12-08 | 2023-09-12 | 深圳航天科技创新研究院 | Manual winch |
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| GB1285300A (en) * | 1969-12-30 | 1972-08-16 | Uher Patent Ag | Winch |
| US4213687A (en) * | 1978-07-10 | 1980-07-22 | W. Haking Enterprises Limited | Film advancing mechanism |
| CN2115328U (en) * | 1992-02-02 | 1992-09-09 | 孔祥海 | Rope guiding device |
| CN1184772A (en) * | 1996-12-09 | 1998-06-17 | 仲建元 | Arrangement for preventing persons from falling down for lifting equipment |
| JPH1111884A (en) * | 1997-06-19 | 1999-01-19 | Wako Kikai Kogyo Kk | Brake mechanism for winch |
| CN2364013Y (en) * | 1999-02-09 | 2000-02-16 | 黄明辉 | Hand hoisting block |
| CN2517694Y (en) * | 2001-12-07 | 2002-10-23 | 徐家梁 | Novel backstop |
| CN201047159Y (en) * | 2007-06-14 | 2008-04-16 | 汤文水 | Hand-operated type hoister |
| CN201052954Y (en) * | 2006-03-27 | 2008-04-30 | 韩永清 | Small-sized aloft work manual lifter |
| CN203715137U (en) * | 2014-01-24 | 2014-07-16 | 南京迦南制药设备有限公司 | Winch assembly |
| CN204333762U (en) * | 2014-12-03 | 2015-05-13 | 中国南方电网有限责任公司超高压输电公司梧州局 | A kind of portable high-altitude lifting device |
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Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3581586A (en) * | 1968-04-19 | 1971-06-01 | Walter L Blackburn | Ratchet winch |
| GB1285300A (en) * | 1969-12-30 | 1972-08-16 | Uher Patent Ag | Winch |
| US4213687A (en) * | 1978-07-10 | 1980-07-22 | W. Haking Enterprises Limited | Film advancing mechanism |
| CN2115328U (en) * | 1992-02-02 | 1992-09-09 | 孔祥海 | Rope guiding device |
| CN1184772A (en) * | 1996-12-09 | 1998-06-17 | 仲建元 | Arrangement for preventing persons from falling down for lifting equipment |
| JPH1111884A (en) * | 1997-06-19 | 1999-01-19 | Wako Kikai Kogyo Kk | Brake mechanism for winch |
| CN2364013Y (en) * | 1999-02-09 | 2000-02-16 | 黄明辉 | Hand hoisting block |
| CN2517694Y (en) * | 2001-12-07 | 2002-10-23 | 徐家梁 | Novel backstop |
| CN201052954Y (en) * | 2006-03-27 | 2008-04-30 | 韩永清 | Small-sized aloft work manual lifter |
| CN201047159Y (en) * | 2007-06-14 | 2008-04-16 | 汤文水 | Hand-operated type hoister |
| CN203715137U (en) * | 2014-01-24 | 2014-07-16 | 南京迦南制药设备有限公司 | Winch assembly |
| CN204333762U (en) * | 2014-12-03 | 2015-05-13 | 中国南方电网有限责任公司超高压输电公司梧州局 | A kind of portable high-altitude lifting device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104466793A (en) | 2015-03-25 |
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