CN111943096B - High-altitude operation device with safe hanging basket - Google Patents
High-altitude operation device with safe hanging basket Download PDFInfo
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- CN111943096B CN111943096B CN202010860284.7A CN202010860284A CN111943096B CN 111943096 B CN111943096 B CN 111943096B CN 202010860284 A CN202010860284 A CN 202010860284A CN 111943096 B CN111943096 B CN 111943096B
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- basket
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- supporting plate
- worm
- rotating shaft
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
- B66F11/04—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
- B66F11/044—Working platforms suspended from booms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F17/00—Safety devices, e.g. for limiting or indicating lifting force
- B66F17/006—Safety devices, e.g. for limiting or indicating lifting force for working platforms
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- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Emergency Lowering Means (AREA)
Abstract
The invention discloses an overhead working device with a safe hanging basket. The invention comprises a rotating mechanism, when a worm of the rotating mechanism rotates, the whole rotating shaft rotates, and under the action of ball lifting, the supporting plate rotates along with the rotating shaft easily, so that the position of detection equipment on the supporting plate can be changed, the supporting plate of the device can rotate, the rotation is convenient, and the use in electric power high-altitude operation maintenance is facilitated; the anti-falling device comprises the anti-falling mechanism, when a person carelessly falls off the supporting plate at high altitude during high-altitude operation by using the device, the person can fall off the basket, the falling injury or death of the person after falling is avoided, the safety of the device during use is greatly improved, the structure is ingenious, the functions are various, and the use during high-altitude operation is facilitated.
Description
Technical Field
The invention relates to the technical field of high-altitude operation devices, in particular to a high-altitude operation device with a safe hanging basket.
Background
The high-altitude operation generally refers to high-altitude operation, and refers to operation performed by people at a high altitude with a certain position as a reference, and the national standard GB/T3608-: according to the specification, if the operation is carried out on a frame with the height of more than 2m (including 2m), namely the high-altitude operation is carried out, the high-altitude operation is carried out in the power industry, the high-altitude operation is carried out under many conditions, and a rack is required to be used when the high-altitude operation is carried out;
the prior patent (publication number: CN 103337805A) discloses a rotary overhead working platform, which relates to an overhead working platform. The rotary type aerial work rack comprises a rack body and a hooking device arranged above the rack, wherein the hooking device comprises a cross rod and hooks fixedly connected to the upper end of the cross rod, the number of the hooks is at least two, and the cross rod is rotatably connected with the rack body. The inventor finds that the following problems in the prior art are not solved well in the process of realizing the scheme: 1. the device has no protective structure, when the device is used for high-altitude operation, if people accidentally fall from the rack, the personnel can be hung in the air, and if the safety belt is broken, the personnel can be injured or killed by falling, so that the safety is poor; 2. when the device rotates, the operation is troublesome, the rotation is not easy to carry out, and the operation is not easy to carry out when the device works high above the ground; 3. in the existing aerial work adjusting structure, the whole aerial work rack can only be rotated integrally, and after the maintenance equipment with different weights is arranged on the work rack and when the orientation needs to be changed in different work stages, particularly when the object carrying basket is hung on the circumference externally, the object carrying basket needs to be driven to rotate, so that the work orientation rotation of the work rack cannot be realized, and the center of gravity of the whole work rack can be adjusted stably and quickly.
Disclosure of Invention
The invention aims to provide an overhead working device with a safe hanging basket, which comprises a rectangular supporting platform, a trolley supporting rod, a rotating mechanism and an anti-falling mechanism, wherein the trolley supporting rod is fixedly connected with the center of the bottom surface of the supporting platform, the anti-falling mechanism is fixedly arranged on the peripheral outer wall of the supporting platform, and the rotating mechanism is rotatably arranged on the top surface of the supporting platform;
the anti-falling mechanism comprises a hanging rack, a basket and n-shaped hanging racks, wherein the n-shaped hanging racks are welded on the outer wall of one side plate of the basket, the hanging racks are welded on the side surfaces of the outer walls of the periphery of the tray table, the n-shaped hanging racks are fixedly clamped on the hanging racks in a sliding manner, each hanging rack is a hollow interlayer consisting of an inner wall and an outer wall, the outer wall of the interlayer has a certain thickness, a section of arc-shaped groove is formed in the side, close to the inner wall, of the outer wall, and a telescopic hanging and connecting rod is further arranged on the edge of a basket body of the basket;
the rotating mechanism comprises a supporting plate, a rectangular sleeve, a rotating shaft, a worm wheel, worm mounting plates, a worm, a groove, a first bearing and a second bearing, wherein the center of the top surface of the supporting plate is provided with the groove, the center of the top surface of the supporting plate is vertically and fixedly provided with the rectangular sleeve in a penetrating way, the edges of the periphery of the top surface of the supporting plate are fixedly welded with guardrails, the middle part of the rotating shaft is fixedly clamped in the rectangular sleeve, the bottom end of the rotating shaft is rotatably arranged at the bottom of the groove of the supporting plate through the first bearing, the outer wall of the top part of the rotating shaft is fixedly sleeved with the worm wheel, the top surface of the supporting plate is fixedly connected with the two worm mounting plates, the two worm mounting plates are horizontally and rotatably provided with the worm through the second bearing, one end of the worm is fixedly provided with an adjusting wheel, the worm is mutually meshed with the worm wheel, and the top surface of the supporting plate and the bottom surface of the supporting plate are provided with ball grooves, a plurality of balls are arranged in the ball groove of the supporting table in a rolling mode, and the outer wall of the top of each ball is in contact with the inner wall of the ball groove of the supporting plate.
Preferably, the stores pylon is the stainless steel and returns font stores pylon, the basket is the metal basket, the inner wall of basket is attached to be installed the polytetrafluoroethylene inside lining.
Preferably, the rotating shaft is a stainless steel rotating shaft, two ends of the rotating shaft are of circular structures, and the middle of the rotating shaft is of a rectangular structure.
Preferably, the top surface of the supporting plate is provided with a rectangular hollow groove, and the rectangular sleeve is fixedly installed in the rectangular groove of the supporting plate.
Preferably, one end of the worm is fixedly provided with an adjusting wheel, and the outer wall of the adjusting wheel is provided with anti-skid grains.
Preferably, the supporting plate is a stainless steel plate, and the top surface of the supporting plate is attached with a wear-resistant rubber anti-skid pad.
Preferably, the edge all around of layer board top surface fixed welding has the guardrail, the outer wall spraying of guardrail has corrosion-resistant coating.
Preferably, the inner walls of the ball grooves of the supporting platform and the supporting plate are both sprayed with wear-resistant coatings, and the outer wall of the second bearing is sprayed with antirust coatings.
Compared with the prior art, the invention has the beneficial effects that:
(1) according to the invention, the gravity center is synchronously and stably adjusted on the basis of adapting to various operation modes and operation orientations by matching the double-layer single-side arc-shaped hanging rack with the hanging basket with the lapping rod.
(2) The invention comprises a rotating mechanism, when a worm of the rotating mechanism rotates, the whole rotating shaft rotates, and under the action of the lifting of the balls, the supporting plate rotates along with the rotating shaft easily, so that the position of the detection equipment on the supporting plate can be changed, the supporting plate of the device can rotate, and the rotation is convenient, thereby being beneficial to use in electric power high-altitude operation maintenance;
(3) the anti-falling device comprises an anti-falling mechanism, when a person carelessly falls off the supporting plate under the action of high altitude during high altitude operation, the person can fall off the basket, the falling-off or death of the person after falling off is avoided, the safety during use of the device is greatly improved, the basket of the device can contain more goods, the frequent lifting of the trolley during high altitude operation is reduced, the goods are transported, the structure is ingenious, the functions are various, and the anti-falling device is favorable for high altitude operation.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic view of the internal structure of the pallet and rectangular sleeve connection of the present invention;
FIG. 3 is a schematic top view of the pallet of the present invention;
fig. 4 is a schematic perspective view of a rotating shaft according to the present invention.
In the figure: 1. the device comprises a supporting platform, 2, a supporting plate, 3, a rectangular sleeve, 4, a rotating shaft, 5, a worm wheel, 6, a worm mounting plate, 7, a worm, 8, an adjusting wheel, 9, a guardrail, 10, a hanging rack, 11, a basket, 12, an n-shaped hanging rack, 13, a trolley supporting rod, 14, a groove, 15, a first bearing, 16, a ball, 17, a ball groove, 18 and a second bearing.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, an embodiment of the present invention is shown: a high-altitude operation device with a safe hanging basket comprises a rectangular supporting platform 1, a trolley supporting rod 13, a rotating mechanism and an anti-falling mechanism, wherein the trolley supporting rod 13 is fixedly connected to the center of the bottom surface of the supporting platform 1, the anti-falling mechanism is fixedly arranged on the outer wall of the periphery of the supporting platform 1, and the rotating mechanism is rotatably arranged on the top surface of the supporting platform 1;
the anti-falling mechanism comprises hangers 10, a basket 11 and n-shaped hangers 12, wherein the n-shaped hangers 12 are welded on the outer wall of one side plate of the basket 11, the hangers 10 are welded on the side surfaces of the peripheral outer wall of the tray table 1, the n-shaped hangers 12 are fixedly clamped on the hangers 10 in a sliding manner, each hanger 10 is a hollow interlayer consisting of an inner wall and an outer wall, the outer wall of the interlayer has a certain thickness, a section of arc-shaped groove is arranged on the side, close to the inner wall, of the outer wall, and a telescopic hanging and connecting rod is further arranged on the edge of a basket body of the basket 11;
the slewing mechanism comprises a supporting plate 2, a rectangular sleeve 3, a rotating shaft 4, a worm wheel 5, worm mounting plates 6, a worm 7, a groove 14, a first bearing 15 and a second bearing 18, the center of the top surface of the supporting plate 1 is provided with the groove 14, the center of the top surface of the supporting plate 2 is vertically and fixedly provided with the rectangular sleeve 3 in a penetrating way, the edges of the periphery of the top surface of the supporting plate 2 are fixedly welded with guardrails 9, the middle part of the rotating shaft 4 is fixedly connected in the rectangular sleeve 3, the bottom end of the rotating shaft 4 is rotatably arranged at the bottom of the groove 14 of the supporting plate 1 through the first bearing 15, the worm wheel 5 is fixedly sleeved on the outer wall of the top part of the rotating shaft 4, the top surface of the supporting plate 2 is vertically and fixedly connected with the two worm mounting plates 6, the two worm mounting plates 6 are horizontally and rotatably provided with the worm 7 through the second bearing 18, one end of the worm 7 is fixedly provided with an adjusting wheel 8, the worm rod 7 is meshed with the worm wheel 5, ball grooves 17 are formed in the top surface of the supporting table 1 and the bottom surface of the supporting plate 2, a plurality of balls 16 are arranged in the ball grooves 17 of the supporting table 1 in a rolling mode, and the outer wall of the top of each ball 16 is in contact with the inner wall of each ball groove 17 of the supporting plate 2.
Specifically, the hanger 10 is a stainless steel square-shaped hanger, the basket 11 is a metal basket, and a polytetrafluoroethylene lining is attached to the inner wall of the basket 11.
Specifically, the rotating shaft 4 is a stainless steel rotating shaft, two ends of the rotating shaft 4 are of circular structures, and the middle of the rotating shaft 4 is of a rectangular structure.
Specifically, a rectangular hollow groove is formed in the top surface of the supporting plate 2, and the rectangular sleeve 3 is fixedly installed in the rectangular groove of the supporting plate 2.
Specifically, one end of the worm 7 is fixedly provided with an adjusting wheel 8, and the outer wall of the adjusting wheel 8 is provided with anti-skid lines.
Specifically, the supporting plate 2 is a stainless steel plate, and the top surface of the supporting plate 2 is attached with a wear-resistant rubber non-slip pad.
Specifically, the fixed welding of edge all around of 2 top surfaces of layer boards has guardrail 9, the outer wall spraying of guardrail 9 has corrosion-resistant coating.
Specifically, the inner walls of the ball grooves 17 of the supporting platform 1 and the supporting plate 2 are both sprayed with wear-resistant coatings, and the outer wall of the second bearing 18 is sprayed with an antirust coating.
The working principle is as follows: when the device is used for high-altitude electric power overhaul, different types of overhaul equipment are needed, so the weight of each maintenance equipment is different, the gravity center of the whole aerial operation device caused by the fact that workers walk to different positions on the supporting platform 1 to carry out operation in different directions also changes, the synchronous and stable adjustment of the gravity center on the basis of adapting to various operation modes and operation directions is realized through the following operations, at the moment, part of overhaul equipment is placed on the top surface at one end of the supporting plate 2 of the rotating mechanism, part of overhaul equipment is placed in the basket 11, the weight of some overhaul equipment is heavier, the overhaul equipment is difficult to move by one person after being placed, the device is inconvenient when the high-altitude electric power overhaul is carried out, at the moment, the overhaul personnel rotate the adjusting wheel 8 at the end part of the worm 7 by hand, at the moment, the worm 7 rotates, because the worm 7 is meshed with the worm wheel 5 sleeved on the rotating shaft 4, the bottom end of a worm wheel 5 is rotatably arranged in a groove 14 of a supporting platform 1 through a first bearing 15, the middle part of a rotating shaft 4 is fixedly clamped in a rectangular sleeve 3 on a supporting plate 2, so that the positions of the rotating shaft 4 and the supporting plate 2 are relatively fixed, when a worm 7 rotates, the whole rotating shaft 4 rotates, under the supporting action of a rolling ball 16, the supporting plate 2 rotates along with the rotating shaft 4 easily, the position of detection equipment on the supporting plate 2 can be changed, the supporting plate 2 of the device can rotate, the rotation is convenient, the use in high-altitude operation maintenance of electric power is facilitated, if the center of gravity of the whole device at the final stop position of the whole operation device is balanced, a hanging rod on a basket 11 does not need to be hung on an operation object to be maintained, if the center of gravity of the whole device at the final stop position of the operation device is unbalanced, the center of gravity of the whole device at the final stop position needs to be before the final stop, the hanging rod of one or more baskets 11 is extended to a proper length and hung on the object to be repaired, so that the selected basket or baskets 11 are kept still during the rotation of the pallet 1, and the mass block can be selected due to the arrangement of the maintenance equipment in the basket 11, so that the center of gravity of the whole working device is adjusted after the basket 11 moves to the target orientation.
In addition, the invention is also particularly suitable for the operation scene which has a plurality of processes in the process of maintenance and needs a plurality of maintenance devices, the maintenance devices can be placed in different baskets 11, then no balancing weight needs to be configured in the baskets 11, and only the hanging rod on the basket 11 where one unused maintenance device is located needs to be selected to be connected to the maintenance object in the process of rotating orientation before different processes are executed.
The device contains anti-falling mechanism, when using the device to carry out high altitude construction, can be with n shape stores pylon 12 joint of basket 11 on the stores pylon 10 of saddle 1 this moment, basket 11 just is fixed this moment, when personnel fall by the layer board 2 carelessly at the high altitude effect, personnel can drop in basket 11 this moment, be favorable to avoiding personnel to hang the emergence of the aerial condition behind the accident, when also having avoided not hanging the safety belt simultaneously, lead to the emergence that personnel fall the postinjury or the dead condition after falling, the security when having improved the device greatly, and the forehead basket 11 of device can the splendid attire more goods, frequent lift of platform truck comes the emergence of transporting the goods condition when being favorable to reducing high altitude construction, the device structure is ingenious, and is various in functions, be favorable to the use when high altitude construction.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the present invention.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (8)
1. The utility model provides an aerial working device with basket is hung to safety which characterized in that: the anti-falling device comprises a rectangular supporting platform (1), a trolley supporting rod (13), a rotating mechanism and an anti-falling mechanism, wherein the trolley supporting rod (13) is fixedly connected to the center of the bottom surface of the supporting platform (1), the anti-falling mechanism is fixedly arranged on the peripheral outer wall of the supporting platform (1), and the rotating mechanism is rotatably arranged on the top surface of the supporting platform (1);
the anti-falling mechanism comprises hangers (10), a basket (11) and n-shaped hangers (12), wherein the n-shaped hangers (12) are welded on the outer wall of one side plate of the basket (11), the hangers (10) are welded on the side surfaces of the peripheral outer wall of the tray table (1), the n-shaped hangers (12) are fixedly clamped on the hangers (10) in a sliding manner, each hanger (10) is a hollow interlayer consisting of an inner wall and an outer wall, the outer wall of the interlayer has a certain thickness, a section of arc-shaped groove is formed in the side, close to the inner wall, of the outer wall, a telescopic hanging and connecting rod is further arranged on the edge of a basket body of the basket (11), and balancing weights are selectively matched in the basket (11);
the rotating mechanism comprises a supporting plate (2), a rectangular sleeve (3), a rotating shaft (4), a worm wheel (5), a worm mounting plate (6), a worm (7), a groove (14), a first bearing (15) and a second bearing (18), wherein the groove (14) is formed in the center of the top surface of the supporting plate (1), the rectangular sleeve (3) is vertically and fixedly installed in the center of the top surface of the supporting plate (2) in a penetrating mode, guardrails (9) are fixedly welded at the edges of the periphery of the top surface of the supporting plate (2), the middle part of the rotating shaft (4) is fixedly clamped in the rectangular sleeve (3), the bottom end of the rotating shaft (4) is rotatably installed at the bottom of the groove (14) of the supporting plate (1) through the first bearing (15), the worm wheel (5) is fixedly sleeved on the outer wall of the top of the rotating shaft (4), the worm mounting plate (6) is fixedly connected to the top surface of the supporting plate (2), two install worm (7) through second bearing (18) horizontal rotation between worm mounting panel (6), the one end department fixed mounting of worm (7) has regulating wheel (8), worm (7) and worm wheel (5) intermeshing, the top surface of saddle (1) and the bottom surface of layer board (2) have all been opened ball groove (17), roll in ball groove (17) of saddle (1) and install a plurality of balls (16), just the outer wall of ball (16) top department touches mutually with ball groove (17) inner wall of layer board (2).
2. The aerial work device with the safety hanging basket as claimed in claim 1, wherein: the hanging rack (10) is a stainless steel reversed-square hanging rack, the basket (11) is a metal basket, and a polytetrafluoroethylene lining is attached to the inner wall of the basket (11).
3. The aerial work device with the safety hanging basket as claimed in claim 1, wherein: the rotating shaft (4) is a stainless steel rotating shaft, the two ends of the rotating shaft (4) are of circular structures, and the middle of the rotating shaft (4) is of a rectangular structure.
4. The aerial work device with the safety hanging basket as claimed in claim 1, wherein: the top surface of the supporting plate (2) is provided with a rectangular hollow groove, and the rectangular sleeve (3) is fixedly installed in the rectangular groove of the supporting plate (2).
5. The aerial work device with the safety hanging basket as claimed in claim 1, wherein: the outer wall of the adjusting wheel (8) is provided with anti-skid lines.
6. The aerial work device with the safety hanging basket as claimed in claim 1, wherein: the supporting plate (2) is a stainless steel plate, and the top surface of the supporting plate (2) is attached with a wear-resistant rubber anti-slip pad.
7. The aerial work device with the safety hanging basket as claimed in claim 1, wherein: the edge fixed welding all around of layer board (2) top surface has guardrail (9), the outer wall spraying of guardrail (9) has corrosion-resistant coating.
8. The aerial work device with the safety hanging basket as claimed in claim 1, wherein: the inner walls of the ball grooves (17) of the supporting platform (1) and the supporting plate (2) are both sprayed with wear-resistant coatings, and the outer wall of the second bearing (18) is sprayed with an antirust coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010860284.7A CN111943096B (en) | 2020-08-25 | 2020-08-25 | High-altitude operation device with safe hanging basket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010860284.7A CN111943096B (en) | 2020-08-25 | 2020-08-25 | High-altitude operation device with safe hanging basket |
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| Publication Number | Publication Date |
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| CN111943096A CN111943096A (en) | 2020-11-17 |
| CN111943096B true CN111943096B (en) | 2022-04-22 |
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| CN202010860284.7A Active CN111943096B (en) | 2020-08-25 | 2020-08-25 | High-altitude operation device with safe hanging basket |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203238000U (en) * | 2013-04-01 | 2013-10-16 | 王玉彪 | Rotatable lifter |
| CN107720639A (en) * | 2017-11-29 | 2018-02-23 | 中国铁建港航局集团有限公司 | A kind of adjustable modularization hanging basket of center of gravity |
| CN207671645U (en) * | 2017-12-27 | 2018-07-31 | 甘肃兰煤机械制造有限公司 | A kind of mining machinery reparation manual operation platform |
| CN209974257U (en) * | 2019-06-11 | 2020-01-21 | 海阳市谊合建筑机械有限公司 | Thermal power boiler furnace overhauls lift platform |
| CN111115523A (en) * | 2019-11-25 | 2020-05-08 | 国网山东省电力公司滨州市沾化区供电公司 | Special logistics support vehicle for electric power operation and maintenance |
| CN210559222U (en) * | 2019-10-12 | 2020-05-19 | 江苏城乡建设职业学院 | Elevating platform is used in gardens construction |
-
2020
- 2020-08-25 CN CN202010860284.7A patent/CN111943096B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203238000U (en) * | 2013-04-01 | 2013-10-16 | 王玉彪 | Rotatable lifter |
| CN107720639A (en) * | 2017-11-29 | 2018-02-23 | 中国铁建港航局集团有限公司 | A kind of adjustable modularization hanging basket of center of gravity |
| CN207671645U (en) * | 2017-12-27 | 2018-07-31 | 甘肃兰煤机械制造有限公司 | A kind of mining machinery reparation manual operation platform |
| CN209974257U (en) * | 2019-06-11 | 2020-01-21 | 海阳市谊合建筑机械有限公司 | Thermal power boiler furnace overhauls lift platform |
| CN210559222U (en) * | 2019-10-12 | 2020-05-19 | 江苏城乡建设职业学院 | Elevating platform is used in gardens construction |
| CN111115523A (en) * | 2019-11-25 | 2020-05-08 | 国网山东省电力公司滨州市沾化区供电公司 | Special logistics support vehicle for electric power operation and maintenance |
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| CN111943096A (en) | 2020-11-17 |
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