CN112376881A - Climbing formula scaffold frame support increases subassembly - Google Patents
Climbing formula scaffold frame support increases subassembly Download PDFInfo
- Publication number
- CN112376881A CN112376881A CN202011285600.9A CN202011285600A CN112376881A CN 112376881 A CN112376881 A CN 112376881A CN 202011285600 A CN202011285600 A CN 202011285600A CN 112376881 A CN112376881 A CN 112376881A
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- China
- Prior art keywords
- climbing
- frame
- worm
- climbing frame
- motor
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
- E04G3/28—Mobile scaffolds; Scaffolds with mobile platforms
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G5/00—Component parts or accessories for scaffolds
- E04G5/007—Devices and methods for erecting scaffolds, e.g. automatic scaffold erectors
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G5/00—Component parts or accessories for scaffolds
- E04G5/04—Means for fastening, supporting, or bracing scaffolds on or against building constructions
- E04G5/046—Means for fastening, supporting, or bracing scaffolds on or against building constructions for fastening scaffoldings on walls
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
- E04G3/28—Mobile scaffolds; Scaffolds with mobile platforms
- E04G2003/286—Mobile scaffolds; Scaffolds with mobile platforms mobile vertically
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G5/00—Component parts or accessories for scaffolds
- E04G2005/008—Hoisting devices specially adapted as part of a scaffold system
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The invention discloses a support seat growing assembly of a climbing type scaffold, which comprises a main climbing frame guide rail frame and a climbing frame, wherein a rack is vertically and fixedly connected to the main climbing frame guide rail frame, a telescopic support seat is arranged at the bottom end of the climbing frame, and an adjusting mechanism for adjusting the telescopic support seat is arranged at the bottom end of the climbing frame. The climbing frame is characterized in that the telescopic support is arranged, the rod bodies and the limiting blocks can slide in the cavities, so that the gap between the two bases can be adjusted, the support of the climbing frame can be adjusted, the number of the rod bodies is more than two, the rod bodies are horizontally arranged, the distance between the rod bodies is smaller than 10CM, and materials or personnel can be prevented from falling from the gap. According to the invention, the adjusting mechanism is arranged, power is provided by the first motor, the first motor drives the first worm to rotate, the first worm drives the first worm wheel meshed with the first worm to rotate, the first worm wheel drives the nut to rotate, and the nut drives the screw rod to horizontally move.
Description
Technical Field
The invention relates to the technical field of scaffolds, in particular to a support seat lengthening assembly of a climbing scaffold.
Background
The climbing scaffold is composed of a frame, a truss at the bottom of the frame body, a frame body framework, an attached supporting structure, a falling prevention device, lifting equipment and the like. The method is mainly applied to high-rise (the number of layers is more than 16) frame structures, shear wall structures, frame shear structures and cylindrical structures. The total height of the frame body of the climbing scaffold is not more than four standard layers of a building structure, about 12.8 m-16 m, and the height of each step is 1.8 m. The climbing scaffold is also suitable for external scaffolds for construction of high piers of bridges and high-rise structures with special structures.
Climbing formula scaffold frame goes up and down according to the construction progress successive layer, and the scaffold frame is set up to the structure top layer from ground always and is practiced thrift a large amount of steel pipes, shaped steel, fastener, scaffold board and safety net. After the climbing frame body is erected, the frame body can be lifted by only 5 persons, and a large amount of manpower is saved. After the scaffold of the climbing scaffold is erected, the scaffold is lifted by using a lifting system of the scaffold, so that the vertical transportation efficiency is greatly improved. The construction progress can be accelerated by adopting the climbing scaffold, the construction period is shortened, and the cost expenditure is reduced.
In the prior art, for example, patent No. CN201116267Y discloses an external hanging support device for an internal climbing tower crane, which is characterized in that two support frames vertically extending outward to form a bearing beam are installed on the outer surface of a building core tube, the support frames are connected to outer end points by diagonal draw bars connected to the outer side of the building core tube, two sides of each support frame are connected to the building core tube by horizontal rods to keep the horizontal stability, at least two sets of support frames are arranged on the outer surface of the building core tube, a base of the internal climbing tower crane is connected to the lower support frame, and the upper support frame supports the internal climbing tower crane. The diagonal draw bar is composed of a plurality of sections of steel belts, and the two sections of steel belts are connected by a connecting plate and a pin shaft. The supporting frame is connected the building core section of thick bamboo outside by two-way hinge means, the utility model has the advantages that make the interior tower crane of climbing can rise gradually along with the increase of the height of building to can be no matter the size of building core section of thick bamboo plane dimension, the outer wall that relies on a building core section of thick bamboo can satisfy the installation of tower crane and the needs in the space of climbing.
However, when the climbing scaffold moves on the guide rail, the climbing scaffold is fixed and is not convenient to grow after moving to a suspended state, so that the climbing scaffold is urgently needed to be changed.
Disclosure of Invention
The invention aims to solve the problems and provides a climbing scaffold support lengthening assembly.
In order to achieve the purpose, the invention adopts the following technical scheme:
a support seat growing assembly of a climbing scaffold comprises a main climbing frame guide rail frame and a climbing frame, wherein a rack is vertically and fixedly connected to the main climbing frame guide rail frame, a telescopic support seat is arranged at the bottom end of the climbing frame, and an adjusting mechanism for adjusting the telescopic support seat is arranged at the bottom end of the climbing frame;
the climbing rack is provided with a driving climbing mechanism used for climbing in cooperation with the rack, and the climbing rack is further provided with a driven climbing mechanism used for climbing in cooperation with the rack.
Optionally, the telescopic support is composed of a base, a cavity, a limiting block and a rod body;
the number of the bases is two, the bases are fixedly connected to two sides of the bottom end of the climbing frame, cavities are formed in the bases, limiting blocks are arranged in the cavities, and the limiting blocks on the two sides are fixedly connected with rod bodies together.
Optionally, the quantity of the body of rod is more than two, the body of rod level sets up, the interval between the body of rod is less than 10 CM.
Optionally, the adjusting mechanism is composed of a first motor, a first worm wheel, a bearing seat, a nut, a screw rod and a connecting rod;
the first motor is installed on the climbing frame, the first worm is fixedly connected with an output shaft of the first motor, the first worm is meshed with the first worm wheel, one end, far away from the first motor, of the first worm is rotatably connected to the climbing frame through a bearing seat, the first worm wheel is in interference fit with the nut, the nut is rotatably connected to the climbing frame, the nut is in threaded connection with the lead screw, the lead screw is rotatably connected with the connecting rod, and one end, far away from the lead screw, of the connecting rod is rotatably connected to the bottom end of one of the bases.
Optionally, the active climbing mechanism is composed of a housing, a partition plate, a driving gear, a first connecting frame, a second worm, a second motor, a bevel gear set and a second worm wheel;
the climbing frame comprises a frame body, a climbing frame guide rail main frame and a shell, wherein the frame body is sleeved on the frame body, a partition plate is fixedly connected in the shell, a second motor is installed in the shell and located on the lower side of the partition plate, an output shaft of the second motor is connected with a second worm which is vertically arranged through a bevel gear set, the second worm is rotatably connected to the shell and meshed with a second worm wheel, the second worm wheel is coaxially arranged with a driving gear, the driving gear is rotatably connected to the shell through a first connecting frame, and the driving gear is meshed with a rack.
Optionally, the driven climbing mechanism is composed of a cover body, a second connecting frame and a driven gear, the driven gear is rotatably connected to a cover shell through the second connecting frame, and the cover shell is fixedly connected with the climbing frame.
Optionally, the climbing frame is formed by two risers, the telescopic support and the adjustment mechanism being located between bottom sides of the two risers.
The invention has the following advantages:
the climbing frame is characterized in that the telescopic support is arranged, the rod bodies and the limiting blocks can slide in the cavities, so that the gap between the two bases can be adjusted, the support of the climbing frame can be adjusted, the number of the rod bodies is more than two, the rod bodies are horizontally arranged, the distance between the rod bodies is smaller than 10CM, and materials or personnel can be prevented from falling from the gap.
According to the invention, the adjusting mechanism is arranged, power is provided by the first motor, the first motor drives the first worm to rotate, the first worm drives the first worm wheel meshed with the first worm to rotate, the first worm wheel drives the nut to rotate, the nut drives the screw rod to horizontally move, the screw rod drives the connecting rod to move, and the connecting rod drives the base to move, so that linkage with the telescopic support is realized, and the increase of the support of the climbing frame is realized.
The driven climbing mechanism is provided with a driving climbing mechanism and a driven climbing mechanism, a second motor provides power, the power is output to a second worm through a bevel gear set in a steering mode, the second worm drives a second worm gear to rotate, the second worm gear drives a driving gear which is coaxial with the second worm gear to rotate, the driving gear realizes climbing through meshing with a rack, and the driven climbing mechanism has the effect that through meshing of the gear and the rack, two-point type support is formed between the driving gear and the driving climbing mechanism 6, so that the climbing frame 2 can run more stably.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the telescoping support and adjustment mechanism of FIG. 1 in accordance with the present invention;
fig. 3 is a schematic view of the active climbing mechanism and the driven climbing mechanism of fig. 1 according to the present invention.
In the figure: the climbing device comprises a 1 climbing frame guide rail main frame, a 2 climbing frame, a 3 telescopic support, a 31 base, a 32 cavity, a 33 limiting block, a 34 rod body, a 4 adjusting mechanism, a 41 bearing seat, a 42 first worm, a 43 first worm gear, a 44 first motor, a 45 nut, a 46 screw rod, a 47 connecting rod, a 5 driven climbing mechanism, 51, 52, 53, 6 driving climbing mechanisms, a 61 shell, a 62 partition plate, a 63 driving gear, a 64 first connecting frame, a 65 second worm, a 66 second motor, a 67 bevel gear set, a 68 second worm gear and a 7 rack.
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.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-3, a support saddle lengthening assembly for a climbing scaffold comprises a main frame 1 of a climbing frame guide rail and a climbing frame 2, and is characterized in that a rack 7 is vertically and fixedly connected to the main frame 1 of the climbing frame guide rail, a telescopic support saddle 3 is arranged at the bottom end of the climbing frame 2, and an adjusting mechanism 4 for adjusting the telescopic support saddle 3 is arranged at the bottom end of the climbing frame 2.
The climbing frame 2 is composed of two vertical plates, and the telescopic support 3 and the adjusting mechanism 4 are both positioned between the bottom sides of the two vertical plates.
The quantity of body of rod 34 is more than two, and body of rod 34 level sets up, and the interval between the body of rod 34 is less than 10CM to avoid material or personnel to drop from the gap.
The adjusting mechanism 4 comprises a first motor 44, a first worm 42, a first worm wheel 43, a bearing seat 41, a nut 45, a screw rod 46 and a connecting rod 47, and the specific connection mode is as follows, the first motor 44 is installed on the climbing frame 2, the first worm 42 is fixedly connected with an output shaft of the first motor 44, the first worm 42 is meshed with the first worm wheel 43, one end of the first worm 42, which is far away from the first motor 44, is rotatably connected to the climbing frame 2 through the bearing seat 41, the first worm wheel 43 is in interference fit with the nut 45, the nut 45 is rotatably connected to the climbing frame 2, the nut 45 is in threaded connection with the screw rod 46, the screw rod 46 is rotatably connected with the connecting rod 47, and one end of the connecting rod 47, which is far away from the screw rod 46, is. The adjusting mechanism 4 is used for providing power through the first motor 44, the first motor 44 drives the first worm 42 to rotate, the first worm 42 drives the first worm wheel 43 meshed with the first worm to rotate, the first worm wheel 43 drives the nut 45 to rotate, the nut 45 drives the screw rod 46 to horizontally move, the screw rod 46 drives the connecting rod 47 to move, and the connecting rod 47 drives the base 31 to move, so that the telescopic support 3 is linked.
The climbing frame 2 is provided with a driving climbing mechanism 6 for climbing in cooperation with the rack 7, and the climbing frame 2 is further provided with a driven climbing mechanism 5 for climbing in cooperation with the rack 7.
The active climbing mechanism 6 is composed of a housing 61, a partition plate 62, a driving gear 63, a first connecting frame 64, a second worm 65, a second motor 66, a bevel gear set 67 and a second worm gear 68, and the specific connection mode is as follows: casing 61 cover is established on climbing frame guide rail main frame 1, fixedly connected with baffle 62 in the casing 61, second motor 66 installs in casing 61 and is located the downside of baffle 62, the output shaft of second motor 66 is connected with the second worm 65 of vertical setting through bevel gear group 67, second worm 65 rotates and connects on casing 61, second worm 65 and the meshing of second worm wheel 68, second worm wheel 68 and the coaxial setting of driving gear 63, driving gear 63 rotates through first link 64 and connects on casing 61, driving gear 63 and rack 7 mesh. The active climbing mechanism 6 is used for providing power by a second motor 66, outputting the power to a second worm 65 in a steering way through a bevel gear set 67, the second worm 65 drives a second worm wheel 68 to rotate, the second worm wheel 68 drives a driving gear 63 coaxially arranged with the second worm wheel 68 to rotate, and the driving gear 63 realizes climbing through meshing with the rack 7.
The driven climbing mechanism 5 is composed of a cover body 51, a second connecting frame 52 and a driven gear 53, the driven gear 53 is rotatably connected to the cover body 51 through the second connecting frame 52, the cover body 51 is fixedly connected with the climbing frame 2, and the driven climbing mechanism 5 is used for realizing two-point support with the driving climbing mechanism 6 through the meshing of the gear 53 and the rack 7, so that the operation of the climbing frame 2 is more stable.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention. In the present invention, unless otherwise specifically stated or limited, the terms "cover", "fitted", "attached", "fixed", "distributed", and the like are to be understood in a broad sense, and may be, for example, fixedly attached, detachably attached, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Claims (7)
1. A climbing type scaffold support seat growing assembly comprises a climbing frame guide rail main frame (1) and a climbing frame (2), and is characterized in that a rack (7) is vertically and fixedly connected to the climbing frame guide rail main frame (1), a telescopic support seat (3) is arranged at the bottom end of the climbing frame (2), and an adjusting mechanism (4) used for adjusting the telescopic support seat (3) is arranged at the bottom end of the climbing frame (2);
the climbing rack (2) is provided with a driving climbing mechanism (6) used for being matched with the rack (7) to climb, and the climbing rack (2) is further provided with a driven climbing mechanism (5) used for being matched with the rack (7) to climb.
2. A climbing scaffold support extension assembly according to claim 1, wherein the telescopic support (3) is composed of a base (31), a cavity (32), a stopper (33) and a rod body (34);
the number of the bases (31) is two, the bases are fixedly connected to two sides of the bottom end of the climbing frame (2), cavities (32) are formed in the two bases (31), limiting blocks (33) are arranged in the cavities (32), and the limiting blocks (33) on the two sides are fixedly connected with a rod body (34) together.
3. A climbing scaffold support extension assembly according to claim 2, wherein the number of rods (34) is more than two, the rods (34) are horizontally arranged, and the spacing between the rods (34) is less than 10 CM.
4. A climbing scaffold support growth assembly according to claim 2, characterized in that the adjusting mechanism (4) is composed of a first motor (44), a first worm (42), a first worm wheel (43), a bearing block (41), a nut (45), a lead screw (46) and a connecting rod (47);
the first motor (44) is installed on the climbing frame (2), the first worm (42) is fixedly connected with an output shaft of the first motor (44), the first worm (42) is meshed with a first worm wheel (43), one end, far away from the first motor (44), of the first worm (42) is rotatably connected to the climbing frame (2) through a bearing seat (41), the first worm wheel (43) is in interference fit with a nut (45), the nut (45) is rotatably connected to the climbing frame (2), the nut (45) is in threaded connection with a lead screw (46), the lead screw (46) is rotatably connected with a connecting rod (47), and one end, far away from the lead screw (46), of the connecting rod (47) is rotatably connected to the bottom end of one of the bases (31).
5. A climbing scaffold support growth assembly according to claim 1, characterized in that the active climbing mechanism (6) is composed of a housing (61), a partition (62), a driving gear (63), a first connecting frame (64), a second worm (65), a second motor (66), a bevel gear set (67) and a second worm gear (68);
the climbing frame is characterized in that the casing (61) is sleeved on the climbing frame guide rail main frame (1), a partition plate (62) is fixedly connected in the casing (61), the second motor (66) is installed in the casing (61) and located on the lower side of the partition plate (62), an output shaft of the second motor (66) is connected with a second worm (65) which is vertically arranged through a bevel gear set (67), the second worm (65) is rotatably connected to the casing (61), the second worm (65) is meshed with a second worm wheel (68), the second worm wheel (68) is coaxially arranged with the driving gear (63), the driving gear (63) is rotatably connected to the casing (61) through a first connecting frame (64), and the driving gear (63) is meshed with the rack (7).
6. A climbing scaffold support extension assembly according to claim 1, wherein the driven climbing mechanism (5) is composed of a housing (51), a second connecting frame (52) and a driven gear (53), the driven gear (53) is rotatably connected to the housing (51) through the second connecting frame (52), and the housing (51) is fixedly connected to the climbing frame (2).
7. A climbing scaffold support growth assembly according to claim 1, characterized in that the climbing frame (2) is made up of two risers, the telescopic support (3) and the adjustment mechanism (4) being located between the bottom sides of the two risers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011285600.9A CN112376881A (en) | 2020-11-17 | 2020-11-17 | Climbing formula scaffold frame support increases subassembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011285600.9A CN112376881A (en) | 2020-11-17 | 2020-11-17 | Climbing formula scaffold frame support increases subassembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112376881A true CN112376881A (en) | 2021-02-19 |
Family
ID=74585658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011285600.9A Withdrawn CN112376881A (en) | 2020-11-17 | 2020-11-17 | Climbing formula scaffold frame support increases subassembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112376881A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112982939A (en) * | 2021-02-23 | 2021-06-18 | 徐鹏 | High-stability attached lifting scaffold |
| CN113431312A (en) * | 2021-06-10 | 2021-09-24 | 赵传叶 | Scaffold capable of transporting materials |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2602739A1 (en) * | 2007-09-14 | 2009-03-14 | Joseph Taberah | Power lift system |
| TWM485279U (en) * | 2014-02-27 | 2014-09-01 | shu-zhen Chen | Lifting type scaffolding |
| WO2015188612A1 (en) * | 2014-06-09 | 2015-12-17 | 韩景伟 | Chimney disassembling elevator |
| CN107090776A (en) * | 2017-05-26 | 2017-08-25 | 王燕 | A kind of bridge pier climbs machine |
| CN209026409U (en) * | 2018-11-19 | 2019-06-25 | 佛山市顺帆机械有限公司 | A kind of telescopic ceramic machinery rack |
| CN211173018U (en) * | 2019-11-14 | 2020-08-04 | 湖南能祥建筑工程有限公司 | A operation platform for inserted lift scaffold |
| CN211524016U (en) * | 2019-07-31 | 2020-09-18 | 北京星河模板脚手架工程有限公司 | Double-working-surface guide frame climbing type working platform and system |
-
2020
- 2020-11-17 CN CN202011285600.9A patent/CN112376881A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2602739A1 (en) * | 2007-09-14 | 2009-03-14 | Joseph Taberah | Power lift system |
| TWM485279U (en) * | 2014-02-27 | 2014-09-01 | shu-zhen Chen | Lifting type scaffolding |
| WO2015188612A1 (en) * | 2014-06-09 | 2015-12-17 | 韩景伟 | Chimney disassembling elevator |
| CN107090776A (en) * | 2017-05-26 | 2017-08-25 | 王燕 | A kind of bridge pier climbs machine |
| CN209026409U (en) * | 2018-11-19 | 2019-06-25 | 佛山市顺帆机械有限公司 | A kind of telescopic ceramic machinery rack |
| CN211524016U (en) * | 2019-07-31 | 2020-09-18 | 北京星河模板脚手架工程有限公司 | Double-working-surface guide frame climbing type working platform and system |
| CN211173018U (en) * | 2019-11-14 | 2020-08-04 | 湖南能祥建筑工程有限公司 | A operation platform for inserted lift scaffold |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112982939A (en) * | 2021-02-23 | 2021-06-18 | 徐鹏 | High-stability attached lifting scaffold |
| CN112982939B (en) * | 2021-02-23 | 2021-12-28 | 徐鹏 | High-stability attached lifting scaffold |
| CN113431312A (en) * | 2021-06-10 | 2021-09-24 | 赵传叶 | Scaffold capable of transporting materials |
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Application publication date: 20210219 |