CN112299329B - Folding auxiliary basket for boiler furnace maintenance platform - Google Patents
Folding auxiliary basket for boiler furnace maintenance platform Download PDFInfo
- Publication number
- CN112299329B CN112299329B CN202011209680.XA CN202011209680A CN112299329B CN 112299329 B CN112299329 B CN 112299329B CN 202011209680 A CN202011209680 A CN 202011209680A CN 112299329 B CN112299329 B CN 112299329B
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- Prior art keywords
- sliding block
- guide rail
- basket
- boiler furnace
- bolt
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Classifications
-
- 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
-
- 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
- B66F13/00—Common constructional features or accessories
-
- 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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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The utility model provides a boiler furnace overhauls platform with attaching basket, includes guide rail (12), removes frame (46), attaches the basket, and guide rail (12) are fixed on the maintenance platform, attach the basket and fix on removing frame (46), remove frame (46) upper portion and have slider subassembly (47), slider subassembly (47) card is in guide rail (12). The guide rail (12) is provided with a plurality of jacks, and the sliding block component (47) is provided with a bolt component. The bolts in the bolt assemblies are inserted into the jacks, so that the sliding block assemblies (47) are locked on the guide rails (12). The folding auxiliary basket for the boiler furnace maintenance platform is convenient to install and move, can complete all installation work at the bottom of the boiler furnace, has strong applicability, is simple and quick in overturning and leveling or overturning and folding operation, and can be installed according to operation requirements. The bolt on the sliding block component can be used for quickly locking the auxiliary basket on the guide rail or unlocking the locking state of the auxiliary basket, so that the position of the folding auxiliary basket can be conveniently adjusted.
Description
Technical Field
The invention relates to the field of suspended overhead operation platforms, in particular to a folding auxiliary basket for a boiler furnace maintenance platform.
Background
The large-scale boiler furnace for power generation or heat supply needs to be salvaged or overhauled regularly, the overhauling operation of the boiler furnace in the past mostly adopts a mode of erecting a temporary scaffold, and the method is gradually replaced by a construction mode without the scaffold at present due to the fact that the time for erecting the scaffold is longer, the cost is higher and the dangerous degree during operation is high. The lifting working platform for overhauling the boiler furnace is a scaffold-free construction mode.
Because the utility of boiler is different, and the fuel that the boiler was used is different, and the evaporation capacity of boiler is different, and boiler furnace's structure, specification, cross-section form are different, and water-cooling screen quantity, interval, the projecting amount in the boiler furnace are also different, consequently need to design corresponding maintenance lift work platform to the boiler furnace size of difference to satisfy the inside requirement of overhauling of boiler furnace.
Generally, the width direction of the bottom of the boiler hearth is of a funnel-shaped structure, and the width of the bottom of the boiler hearth is about half of the width of the upper part of the hearth, namely, the width of the boiler hearth is limited when the bottom of a overhauling lifting platform of the boiler hearth is installed. The water cooling screen is designed at the middle upper part of most boiler furnace, the extension amount of the water cooling screen is different, and the water cooling screen is mostly close to the central line of the width direction, so that the designed boiler furnace overhauling lifting platform basically adopts a structure of a main platform and a plurality of auxiliary platforms, the auxiliary platforms are also called auxiliary baskets, and the telescopic or turnover structure is adopted, so that the area of the platform is reduced at the bottom of the furnace, and the size requirement of the bottom of the boiler furnace is met.
The number and the interval difference of the water cooling screens designed in the boiler furnace are large, and the auxiliary basket of the lifting platform can only be overhauled aiming at the actual design furnace in the furnace. After the boiler is used for a period of time, the water-cooling screen can be greatly deformed in the vertical direction, for example, an auxiliary basket at a fixed position is adopted, and the water-cooling screen can be rubbed with the water-cooling screen when the platform is lifted, so that the water-cooling screen is damaged or the platform is lifted.
Disclosure of Invention
[ technical problem ]
The technical problems of the invention are as follows: the attached basket of the existing boiler furnace overhaul lifting platform is fixed, the position of the attached basket is not flexible enough, and the attached basket is difficult to adapt to complex working conditions.
Technical scheme
The invention provides an auxiliary basket for a boiler furnace maintenance platform, which comprises a guide rail, a movable frame and an auxiliary basket, wherein the guide rail is fixed on the maintenance platform; the guide rail is provided with a plurality of jacks, and the sliding block component is provided with a bolt component; the sliding block component slides to the jack, and a bolt in the bolt component is inserted into the jack, so that the sliding block component is locked on the guide rail; when the latch is withdrawn from the receptacle, the locked state of the slider assembly is released.
Further, the sliding block assembly comprises a sliding block fixing plate, a bolt, a spring sleeve, a spring and a sliding block; the sliding block fixing plate is L-shaped, one side of the sliding block fixing plate is fixed on the moving frame, and the sliding block is fixed on the other side of the sliding block fixing plate; the middle parts of the sliding block fixing plate and the sliding block are provided with spring sleeves, the bolts are positioned in the spring sleeves, the springs are connected with the bolts in series, and the bolts are inserted into the jacks on the guide rail under the action of the springs. The spring is a pressure spring or a tension spring, when the spring is a pressure spring, the lower end of the spring is fixed at the lower part of the bolt, and the upper end of the spring props against the upper part of the inner cavity of the spring sleeve. When the spring is a tension spring, the upper end of the spring is fixed at the upper part of the plug pin, and the lower end of the spring is fixed at the lower part of the inner cavity of the spring sleeve.
Further, the spring sleeve further comprises a limiting pin, wherein the limiting pin is fixed on the upper part of the bolt, and a deep groove and a shallow groove which pass through the axial lead are formed in the upper end of the spring sleeve; when the limiting pin is clamped in the shallow groove, the bolt is pulled out from the jack; when the limiting pin is clamped in the deep groove, the bolt is inserted into the jack. The deep grooves and the shallow grooves are alternately distributed, so that the state of the bolt can be conveniently switched, and the position of the movable frame on the guide rail can be conveniently adjusted.
Further, the number of the sliding block assemblies is two, and the two sliding block assemblies are positioned at two ends of the upper part of the movable frame.
Further, the sliding block component is located at the upper part of the movable frame, and a lower sliding block is further arranged at the lower part of the movable frame. The lower slide block can be a bump or a roller, and plays a role in supporting the lower part of the movable frame in an auxiliary manner. The lower slide block can be provided with a locking mechanism, and plays an auxiliary fixing role when the movable frame is fixed. Such locking means may be grooves or catches on the main platform columns or beams, etc.
Further, the auxiliary basket is a folding auxiliary basket, the folding auxiliary basket comprises a side connecting rod, a front railing, a bottom plate and a supporting component, one ends of the side connecting rod, the bottom plate and the supporting component are hinged to the movable frame, the other ends of the side connecting rod and the bottom plate are hinged to the front railing, the other ends of the supporting component are hinged to the end part of the other end of the bottom plate, and the bottom plate and the side connecting rod can synchronously rotate around a hinge point on the movable frame respectively; the supporting component consists of an outer sleeve, a telescopic rod and a pin shaft I; when the foldable auxiliary basket needs to be unfolded, the bottom plate is turned over and put flat, and the bottom plate is supported by the supporting component; when the foldable auxiliary basket is required to be folded, the bottom plate and the side connecting rods are rotated upwards, the telescopic rods are pulled out from the outer sleeves, and when the side connecting rods are rotated to the highest position, the pin shafts II fix the side connecting rods.
The invention also provides a boiler furnace maintenance platform which comprises a main platform and a lifting mechanism, wherein the side edge of the main platform is provided with a railing, and the railing is provided with the guide rail, the movable frame and the auxiliary basket.
Further, the side of the main platform is provided with a plurality of vertical rods, the anti-falling chain is further included, the two ends of the anti-falling chain are provided with lockers, the vertical rods or the railing is provided with a flying nut, and the lockers at the two ends of the anti-falling chain are locked on the flying nut. When operators need to go in and out from the auxiliary basket, the locker at one end of the anti-falling chain is detached from the ring nut, and besides, the locker is locked on the ring of the ring nut.
Furthermore, the bottom of the main platform consists of a cross beam and a longitudinal beam, and a middle reinforcing beam or a pull rod is further fixed between the vertical beam and the cross beam.
[ advantageous effects ]
The folding auxiliary basket for the boiler furnace maintenance platform is convenient to install and move, high in applicability, simple and quick in overturning and leveling or overturning and folding operation, and capable of being installed according to operation requirements.
The maintenance platform can complete all installation work at the bottom of a boiler hearth, and the folding type auxiliary basket is turned over and folded when the platform is lifted, so that the operation balance of the platform is facilitated, and the maintenance platform can be quickly moved to a construction position and turned over and leveled during construction, and can avoid rubbing with a water cooling screen.
The folding auxiliary basket for the boiler furnace maintenance platform is safe and reliable to use, and the auxiliary basket can be quickly locked on the guide rail by the bolts on the sliding block assembly, so that accidental movement of the folding auxiliary basket due to the inclination of the main platform is effectively prevented. The anti-falling chain can be quickly tripped or locked with the flying nut, the operation is simple, and the anti-falling chain is used as a main platform after locking and is provided with a middle guardrail at one side of the auxiliary basket.
The guide rail is horizontally arranged on the railing at the upper part of one side of the main platform and is fixed with the railing by the bolts, so that the rigidity of the guide rail is increased. Even if the sliding block fails, the sliding block can still hook the horizontally-arranged guide rail, so that the safety of the attached basket is ensured. The middle reinforcing frame and the pull rod are adopted between the cross beam and the vertical rod for reinforcement, the connecting method is simple, the occupied space in the main platform is small, the twisting deformation of the longitudinal beam can be prevented, the rigidity of the guide rail is enhanced, the transverse connection of the top of the platform is removed, the locking buckle of the safety belt is favorably locked on the anti-falling chain by an operator, and the safety of the operator is improved.
Drawings
FIG. 1 is a top view of a boiler furnace maintenance platform;
FIG. 2 is a cross-sectional view A-A of a boiler furnace service platform;
FIG. 3 is a B-B cross-sectional view of a boiler furnace service platform;
FIG. 4 is an enlarged partial cross-sectional view of I of the boiler furnace service platform;
in fig. 1-4: 1-main platform, 2-hoisting mechanism, 3-fall arrestor, 4-folding auxiliary basket, 5-guide roller, 6-wire rope, 10-end railing, 11-fall arrestor chain, 12-guide rail, 13-crossbeam, 14-middle reinforcing frame, 15-pull rod, 16-longitudinal beam, 17-railing, 18-vertical rod, 19-pin assembly, 20-screw, 21-bolt I, 22-bolt II, 23-latch, 24-eye nut, 31-outer sleeve, 32-telescopic rod, 33-pin I, 34-pin II, 41-side connecting rod, 42-front railing, 43-bottom plate, 44-support assembly, 45-pin, 46-movable frame, 47-slider assembly, 48-pin III, 49-lower slider, 51-slider fixed plate, 52-latch, 53-limit pin, 54-spring sleeve, 55-spring, 56-slider, 57-bolt III, 60-boiler furnace bottom structure.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples.
Example 1
As shown in fig. 1-4, a folding auxiliary basket for a boiler furnace maintenance platform mainly comprises a main platform 1, a lifting mechanism 2, a falling protector, a folding auxiliary basket 4, guide rollers 5, a steel wire rope 6, a guide rail 12 and the like. The lifting mechanism 2, the falling protector 3 and the guide roller 5 are arranged on the main platform 1, and the main platform 1 is lifted along the steel wire rope 6 through the lifting mechanism 2. The main platform 1 comprises an end rail 10, an anti-falling chain 11, a cross beam 13, a middle reinforcing frame 14, a pull rod 15, a longitudinal beam 16, a rail 17, a vertical rod 18 and the like, wherein the vertical rod 18 is fixed on the longitudinal beam 16 through a pin shaft assembly 19, and the end rail 10, the anti-falling chain 11, the rail 17 and the vertical rod 18 form a guardrail of the main platform 1. The guide rail 12 is provided with equidistant mounting holes along the length direction, and the guide rail is horizontally arranged on the railing 17 at the upper part of one side of the main platform 1 and then fixed by bolts 20 at a certain interval, and the folding auxiliary basket 4 moves along the guide rail 12 through a sliding block assembly 47.
The folding auxiliary basket 4 mainly comprises a movable frame 46, side connecting rods 41, a front railing 42, a bottom plate 43, a supporting component 44, a pin shaft 45, a lower sliding block 49 and the like. The parts of the auxiliary basket are hinged through the pin shafts, so that the auxiliary basket can be conveniently rotated. The supporting component 44 is composed of the outer sleeve 31 and the telescopic rod 32, the outer sleeve 31 and the telescopic rod 32 are respectively hinged with the bottom plate 43 and the movable frame 46 through the pin shafts I33, when the bottom plate 43 is overturned and laid, the supporting component 44 supports the bottom plate 43, and when the bottom plate 43 is overturned and folded, the telescopic rod 32 is automatically pulled out from the outer sleeve 31 to extend. When the bottom plate 43 is turned and folded, the side connecting rods 41 are driven by the front railing 42 to synchronously rotate, and after the bottom plate is folded in place, the pin shafts II34 lock the side connecting rods 41. The support members 44 may be one or more sets depending on the width of the collapsed attachment basket 4.
The two ends of the anti-falling chain 11 are provided with locking devices 23, and the length of the locking devices is determined by the distance between two adjacent vertical rods 18. The eye nut 24 is mounted on the vertical bar 18 on the side with the basket and below the rail 17 as a middle rail for this side. When an operator needs to go in and out from the auxiliary basket, the locker 23 at one end of the anti-falling chain 11 is detached from the eye nut 24, and besides, the locker 23 is locked on the ring of the eye nut 24, so that construction safety is guaranteed. Depending on the structure of the folding auxiliary basket 4, the fall protection 11 chain may be mounted inside or outside the vertical bar 18.
The folding basket 4 can generate torsion to the longitudinal beam 16 when carrying load, and two ends of the pull rod 15 are respectively fixed on the cross beam 13 and the vertical rod 18 by bolts II22, so that the acting force generated by the folding basket 4 is transmitted to the cross beam 13, and the torsion of the longitudinal beam 16 is reduced. The number and positions of the cross beams 13 and the vertical rods 18 are determined by the size of the boiler furnace and the water cooling screens in the furnace. The longitudinal beam 16, the railing 17 and the guide rail 12 are required to be spliced in the length direction, the middle reinforcing frame 14 is arranged at the splicing position, the lower end point of the middle reinforcing frame 14 is fixed with the cross beam 13 through the bolt II22, the other side is pressed on the upper plane of the longitudinal beam 16, the upper end of the middle reinforcing frame 14 is fixed with the railing 17 through the bolt I21, and the middle reinforcing frame is fixed with the vertical rod 18 through the bolt II22, so that the torsion of the splicing position of the longitudinal beam 16 is reduced, and the rigidity of the guide rail 12 is increased.
The slider assembly 47 is composed of a slider fixing plate 51, a latch 52, a stopper pin 53, a spring sleeve 54, a spring 55, a slider 56, a bolt III57, and the like. The latch 52 extends downward under the action of a spring 55 in a spring sleeve 54, and a deep groove and a shallow groove passing through the axis are formed in the upper end of the spring sleeve 54, and are arranged in a crossing manner, and the extending length of the latch 52 is limited by a limiting pin 53. When the limiting pin 53 rotates to the deep groove position of the spring sleeve 54, the lower end of the bolt 52 is inserted into the hole of the guide rail 12, which is not provided with a screw, and when the limiting pin 53 rotates to the shallow groove position of the spring sleeve 54, the folding type auxiliary basket 4 can move.
The scope of the present invention is not limited to the above-described embodiments, but is intended to be limited to the appended claims, any modifications, equivalents, improvements and alternatives falling within the spirit and principle of the inventive concept, which can be made by those skilled in the art.
Claims (6)
1. The auxiliary basket for the boiler furnace maintenance platform is characterized by comprising a guide rail (12), a movable frame (46) and an auxiliary basket, wherein the guide rail (12) is fixed on the maintenance platform, the auxiliary basket is fixed on one side of the movable frame (46), the other side of the movable frame (46) is provided with a sliding block assembly (47), the sliding block assembly (47) is clamped on the guide rail (12), and the sliding block assembly (47) can slide on the guide rail (12) along the guide rail (12); the guide rail (12) is provided with a plurality of jacks, and the sliding block component (47) is provided with a bolt component; the sliding block assembly (47) slides to the jack, and a bolt in the bolt assembly is inserted into the jack, so that the sliding block assembly (47) is locked on the guide rail (12); when the bolt is pulled out of the jack, the locking state of the sliding block assembly (47) is released;
the sliding block assembly (47) comprises a sliding block fixing plate (51), a bolt (52), a spring sleeve (54), a spring (55) and a sliding block (56); the sliding block fixing plate (51) is L-shaped, one side of the sliding block fixing plate (51) is fixed on the movable frame (46), and the sliding block (56) is fixed on the other side of the sliding block fixing plate (51); the middle parts of the sliding block fixing plate (51) and the sliding block (56) are provided with spring sleeves (54), the bolts (52) are positioned in the spring sleeves (54), the springs (55) are connected on the bolts (52) in series, and the bolts (52) are inserted into the insertion holes on the guide rail (12) under the action of the springs (55);
the spring sleeve is characterized by further comprising a limiting pin (53), wherein the limiting pin (53) is fixed on the upper part of the bolt (52), and a deep groove and a shallow groove are formed in the upper end of the spring sleeve (54); when the limiting pin (53) is clamped in the shallow groove, the bolt (52) is pulled out from the jack; when the limiting pin (53) is clamped in the deep groove, the bolt (52) is inserted into the jack;
the auxiliary basket is a folding auxiliary basket (4);
the foldable auxiliary basket (4) comprises a side connecting rod (41), a front railing (42), a bottom plate (43) and a supporting component (44), wherein one end of the side connecting rod (41), the bottom plate (43) and one end of the supporting component (44) are hinged to the movable frame (46), the other ends of the side connecting rod (41) and the bottom plate (43) are hinged to the front railing (42), the other end of the supporting component (44) is hinged to the end part of the other end of the bottom plate (43), and the bottom plate (43) and the side connecting rod (41) can synchronously rotate around a hinge point on the movable frame (46) respectively; the supporting component (44) consists of an outer sleeve (31), a telescopic rod (32) and a pin shaft I (33); when the foldable auxiliary basket (4) needs to be unfolded, the bottom plate (43) is turned over and put flat, and the bottom plate (43) is supported by the supporting component (44); when the folding auxiliary basket (4) needs to be folded, the bottom plate (43) and the side connecting rods (41) rotate upwards, the telescopic rods (32) are pulled out of the outer sleeves (31), and when the side connecting rods (41) rotate to the highest position, the pin shafts II (34) fix the side connecting rods (41).
2. The auxiliary basket for the boiler furnace maintenance platform according to claim 1, wherein the number of the sliding block assemblies (47) is two, and the two sliding block assemblies (47) are positioned at two ends of the upper part of the movable frame (46).
3. The auxiliary basket for a boiler furnace maintenance platform according to claim 1, wherein the sliding block assembly (47) is positioned at the upper part of the movable frame (46), and a lower sliding block (49) is arranged at the lower part of the movable frame (46).
4. The utility model provides a boiler furnace overhauls platform, includes main platform (1) and hoisting mechanism (2), and the side of main platform (1) has railing (17), and its characterized in that has guide rail (12), movable frame (46) and the attached basket of any one of claims 1-3 on railing (17).
5. The boiler furnace overhauling platform according to claim 4, wherein the side edge of the main platform (1) is provided with a plurality of vertical rods (18), the boiler furnace overhauling platform further comprises an anti-falling chain (11), locking devices (23) are arranged at two ends of the anti-falling chain (11), a lifting ring nut (24) is arranged on the vertical rods (18) or the railing (17), and the locking devices (23) at two ends of the anti-falling chain (11) are locked on the lifting ring nut (24).
6. The boiler furnace overhauling platform according to claim 5, wherein the bottom of the main platform (1) consists of a cross beam (13) and a longitudinal beam (16), and an intermediate reinforcing beam (14) or a pull rod (15) is further fixed between the vertical rod (18) and the cross beam.
Priority Applications (1)
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CN202011209680.XA CN112299329B (en) | 2020-11-03 | 2020-11-03 | Folding auxiliary basket for boiler furnace maintenance platform |
Applications Claiming Priority (1)
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CN202011209680.XA CN112299329B (en) | 2020-11-03 | 2020-11-03 | Folding auxiliary basket for boiler furnace maintenance platform |
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CN112299329A CN112299329A (en) | 2021-02-02 |
CN112299329B true CN112299329B (en) | 2023-09-15 |
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CN202011209680.XA Active CN112299329B (en) | 2020-11-03 | 2020-11-03 | Folding auxiliary basket for boiler furnace maintenance platform |
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CN113501475A (en) * | 2021-06-30 | 2021-10-15 | 杭叉集团股份有限公司 | Electric overturning platform |
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CN202081629U (en) * | 2011-04-12 | 2011-12-21 | 无锡市小天鹅建筑机械有限公司 | Foldable attached basket |
KR101547824B1 (en) * | 2015-03-17 | 2015-08-27 | 케이.엘.이.에스 주식회사 | Furnace scaffolding and hoisting system platform support system |
CN207158734U (en) * | 2017-08-31 | 2018-03-30 | 无锡瑞吉德机械有限公司 | A kind of attached basket of movable folding type |
CN208087165U (en) * | 2018-04-24 | 2018-11-13 | 海阳市金道成机械有限公司 | A kind of convenient modular thermal power plant boiler burner hearth maintenance hoistable platform |
CN208135823U (en) * | 2018-03-26 | 2018-11-23 | 烟台宝梓建筑机械有限公司 | A kind of boiler hearth overhauling hoistable platform |
CN213950510U (en) * | 2020-11-03 | 2021-08-13 | 无锡瑞吉德机械有限公司 | Boiler furnace overhauls platform with foldable basket and boiler furnace overhauls platform that attaches |
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2020
- 2020-11-03 CN CN202011209680.XA patent/CN112299329B/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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CN202081629U (en) * | 2011-04-12 | 2011-12-21 | 无锡市小天鹅建筑机械有限公司 | Foldable attached basket |
KR101547824B1 (en) * | 2015-03-17 | 2015-08-27 | 케이.엘.이.에스 주식회사 | Furnace scaffolding and hoisting system platform support system |
CN207158734U (en) * | 2017-08-31 | 2018-03-30 | 无锡瑞吉德机械有限公司 | A kind of attached basket of movable folding type |
CN208135823U (en) * | 2018-03-26 | 2018-11-23 | 烟台宝梓建筑机械有限公司 | A kind of boiler hearth overhauling hoistable platform |
CN208087165U (en) * | 2018-04-24 | 2018-11-13 | 海阳市金道成机械有限公司 | A kind of convenient modular thermal power plant boiler burner hearth maintenance hoistable platform |
CN213950510U (en) * | 2020-11-03 | 2021-08-13 | 无锡瑞吉德机械有限公司 | Boiler furnace overhauls platform with foldable basket and boiler furnace overhauls platform that attaches |
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