CN115030541B - Shielding device for scaffold - Google Patents
Shielding device for scaffold Download PDFInfo
- Publication number
- CN115030541B CN115030541B CN202210748712.6A CN202210748712A CN115030541B CN 115030541 B CN115030541 B CN 115030541B CN 202210748712 A CN202210748712 A CN 202210748712A CN 115030541 B CN115030541 B CN 115030541B
- Authority
- CN
- China
- Prior art keywords
- scaffold
- baffles
- bracket
- shielding device
- support
- Prior art date
- 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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- 230000005540 biological transmission Effects 0.000 claims abstract description 22
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 12
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000009435 building construction Methods 0.000 abstract description 2
- 230000004308 accommodation Effects 0.000 description 10
- 238000007789 sealing Methods 0.000 description 5
- 239000000428 dust Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000037081 physical activity Effects 0.000 description 1
- 230000007847 structural defect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/32—Safety or protective measures for persons during the construction of buildings
- E04G21/3261—Safety-nets; Safety mattresses; Arrangements on buildings for connecting safety-lines
- E04G21/3266—Safety nets
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Movable Scaffolding (AREA)
Abstract
The invention relates to the technical field of building construction protection, and discloses a shielding device for a scaffold. The beneficial effects are that: the driving piece is movably arranged on the bracket, and the two baffles are driven by the transmission mechanism to be close to and far away from each other, so that the area of the scaffold can be adjusted, and the scaffold can be matched with an opening on the scaffold; the baffle can be installed on the scaffold through the assembly part and is fixed in the entrance to a cave of scaffold, construction noise in the isolated scaffold and shelter from sunshine for constructors in the scaffold, and the baffle has sufficient structural strength, can support constructors that unexpected falls down.
Description
Technical Field
The invention relates to the technical field of building construction protection, in particular to a shielding device for a scaffold.
Background
The scaffold is a working platform which is erected to ensure that each construction process is carried out smoothly. The device is formed by connecting a plurality of rods in a crisscross arrangement, and holes are formed between adjacent rods.
Along with the increase of construction difficulty of high-rise buildings in China, the defects of the scaffold in the aspect of protection are highlighted in practical application. Because of the common adoption of a dense-mesh type safe green net as a protection means. The dense-mesh safe green net has structural defects, is not enough for supporting falling constructors, so that the risk of falling at a high place obviously exists on a construction site, and noise and smoke dust generated during construction cannot be effectively isolated.
Disclosure of Invention
The invention aims to solve the technical problems that: the construction site has a larger risk of falling at a high place, and noise of the construction site disturbs people and smoke and dust.
In order to solve the technical problems, the invention provides a shielding device for a scaffold, which comprises a bracket, a transmission mechanism, a driving piece and two baffles, wherein the two baffles are respectively provided with an assembly part, the two sides of the bracket are respectively movably provided with the baffles, the driving piece is movably arranged on the bracket, the driving piece is in transmission connection with the baffles through the transmission mechanism, and the driving piece can drive the two baffles to be close to and far away from each other through the transmission mechanism.
In the above technical scheme, the transmission mechanism comprises at least two connecting rods hinged through a pin shaft, the two baffle plates are respectively hinged with the connecting rods, and the driving piece is in transmission connection with the pin shaft.
In the technical scheme, the movable seat is arranged on the pin shaft, the movable seat is provided with a movable cavity for the pin shaft to rotate, the support is provided with a threaded hole, the driving piece is in threaded connection with the threaded hole, and one end of the driving piece is limited in the movable cavity.
In the above technical scheme, the baffle includes plate body, extension body and first locking piece, the plate body is installed the assembly portion, the plate body has been seted up first accommodation chamber and the first holding tank that is linked together, the extension body activity wears to locate first accommodation chamber and follow first accommodation chamber stretches out, first locking piece is through first holding tank with extension body threaded connection, in order to inject the extension body with the relative position of plate body.
In the above technical scheme, the second accommodation cavity penetrating through the inner side surface and the outer side surface of the plate body is formed in the plate body, and the first filter screen is arranged in the second accommodation cavity.
In the above technical scheme, a slot is formed in one side surface of the board body opposite to the other board body, the support is provided with a guide part, and the guide part extends into the slot.
In the above technical solution, a connecting seat is mounted on a portion of the extension body protruding from the first accommodating cavity.
In the above technical scheme, the extension body includes second filter screen and supporting part, the supporting part is located the outward flange of second filter screen, and follows the circumference extension of second filter screen, first locking piece with supporting part threaded connection.
In the above technical scheme, the assembly portion includes support, arc and second locking piece, the support install in the baffle, the second accommodation chamber and the second holding tank that are linked together have been seted up to the support, the arc activity wear to locate the second holds the chamber and stretches out from the second holds the chamber, the arc with the support encloses into the third that holds the steel pipe and holds the chamber, the second locking piece warp the second holding tank with arc threaded connection, in order to inject the support with the relative position of arc.
In the above technical scheme, the bracket is provided with a shielding part extending along a direction perpendicular to the movement direction of the baffle plates, and the shielding part is positioned between the two baffle plates.
Compared with the prior art, the shielding device for the scaffold has the beneficial effects that: the bracket plays a role in guiding the movement of the two baffles; the driving piece is movably arranged on the bracket, and the two baffles are driven by the transmission mechanism to be close to and far away from each other, so that the area of the scaffold can be adjusted, and the scaffold can be matched with an opening on the scaffold; the baffle can be arranged on the scaffold through the assembly part and is fixed in the opening of the scaffold, so that construction noise in the scaffold can be isolated, sunlight can be shielded for constructors in the scaffold, meanwhile, the baffle has enough structural strength, and constructors falling accidentally can be supported, so that the risk that the constructors fall from a high place is reduced; in addition, when the steel pipe of the scaffold is influenced to deviate, the position between the two baffles is adjusted through the driving piece, and the sealing performance of the opening can be kept.
Drawings
FIG. 1 is a schematic view of a shielding device for a tripod according to an embodiment of the present invention;
FIG. 2 is a schematic view of a shielding device for a tripod according to an embodiment of the present invention;
FIG. 3 is a schematic view of a plate body according to an embodiment of the present invention;
FIG. 4 is a schematic view of the structure of a bracket according to an embodiment of the present invention;
FIG. 5 is a schematic view of the structure of an extension body according to an embodiment of the present invention;
FIG. 6 is a schematic view of the structure of the fitting portion of the embodiment of the present invention;
in the figure, 100, steel pipes; 1. a bracket; 11. a guide part; 12. a shielding part; 101. a threaded hole;
2. a transmission mechanism; 21. a connecting rod; 22. a pin shaft; 221. a movable seat;
3. a driving member;
4. a baffle; 41. a plate body; 401. a first accommodation chamber; 402. a first accommodation groove; 42. an extension body; 421. a second filter screen; 422. a support part; 423. a connecting seat; 43. a first locking member; 44. a first filter screen;
5. an assembling portion; 51. a support; 52. an arc-shaped plate; 53. a second locking member; 501. a third accommodation chamber; 502. and a second accommodation groove.
Detailed Description
The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples are illustrative of the invention and are not intended to limit the scope of the invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. in the present invention are based on the orientation or positional relationship shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should be understood that the terms "connected," "fixed," and the like are used in the present invention in a broad sense, and for example, may be fixedly connected, detachably connected, or integrated; the mechanical connection can be realized, and the welding connection can be realized; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
As shown in fig. 1, 2, 3, 4, 5 and 6, a shielding device for a scaffold according to a preferred embodiment of the present invention includes a bracket 1, a transmission mechanism 2, a driving member 3 and two baffles 4, wherein the two baffles 4 are both provided with an assembly portion 5, two sides of the bracket 1 are respectively movably provided with the baffles 4, the driving member 3 is movably provided with the bracket 1, the driving member 3 is in transmission connection with the baffles 4 through the transmission mechanism 2, and the driving member 3 can drive the two baffles 4 to approach and separate from each other through the transmission mechanism 2.
The bracket 1 plays a guiding role for the movement of the two baffles 4; the driving piece 3 is movably arranged on the bracket 1, and the two baffles 4 are driven by the transmission mechanism 2 to be close to and far away from each other, so that the area of the scaffold can be adjusted, and the scaffold can be matched with a hole on the scaffold; the baffle 4 can be arranged on the scaffold through the assembly part 5 and is fixed in the opening of the scaffold, so that construction noise in the scaffold can be isolated, sunlight can be shielded for constructors in the scaffold, meanwhile, the baffle 4 has enough structural strength, and constructors falling accidentally can be supported, so that the risk that the constructors fall from a high place is reduced; in addition, when the steel pipe 100 of the scaffold is influenced to deviate, the position between the two baffles 4 is adjusted by the driving piece 3, and the sealing performance of the opening can be kept.
Preferably, the fitting portion 5 is mounted on a side of the baffle 4 remote from the bracket 1.
Preferably, the support 1 is provided with a shielding portion 12 extending in a direction perpendicular to the movement direction of the baffles 4, the shielding portion 12 being located between two baffles 4. The shielding part 12 can further shield sunlight, so that the sunlight is prevented from being directly incident into the tripod due to the fact that the baffles 4 which are far away from each other form a large gap.
Further, as shown in fig. 2, the transmission mechanism 2 comprises at least two connecting rods 21 hinged through a pin 22, the two baffles 4 are respectively hinged with the connecting rods 21, and the driving piece 3 is in transmission connection with the pin 22.
It can be understood that the two connecting rods 21 respectively hinged with the baffle plate 4 are hinged through the pin shaft 22, so that the pin shaft 22 can drive the two connecting rods 21 to respectively push the baffle plate 4 under the drive of the driving piece 3, thereby adjusting the area of the invention and further enabling the invention to be matched with the opening on the scaffold. Specifically, when the driving piece 3 drives the pin shaft 22 to move in a direction away from the bracket 1, the pin shaft 22 drives the connecting rod 21 to rotate, and the two baffles 4 are close to each other; when the driving piece 3 drives the pin shaft 22 to move towards the direction approaching the bracket 1, the pin shaft 22 drives the connecting rod 21 to rotate, and the two baffles 4 are far away from each other. When the steel pipe 100 of the scaffold is influenced to deviate, the position between the two baffles 4 is adjusted by the driving piece 3, and the sealing performance of the opening on the scaffold can be maintained.
Further, as shown in fig. 2, the pin 22 is provided with a movable seat 221, the movable seat 221 is provided with a movable cavity bracket 1 for the pin 22 to rotate, the movable cavity bracket 1 is provided with a threaded hole 101, the driving piece 3 is in threaded connection with the threaded hole 101, and one end of the driving piece 3 is limited in the movable cavity.
It can be understood that the driving piece 3 can drive the two connecting rods 21 to respectively push the baffle plate 4 through the driving pin shaft 22 limited at one end of the movable cavity by adjusting the screwing position of the driving piece 3 and the threaded hole 101 so as to adjust the area of the invention, so that the invention can be matched with the hole on the scaffold, and on the other hand, after the driving piece 3 is adjusted to a proper position, the driving piece 3 in threaded connection with the threaded hole 101 has higher stability, and the screwing position of the driving piece 3 and the threaded hole 101 can be prevented from being changed due to factors such as vibration.
Preferably, a hand wheel is mounted at the other end of the driving member 3 to facilitate the rotation of the driving member 3 by the constructor.
Further, as shown in fig. 1, 3 and 4, the baffle 4 includes a plate 41, an extension body 42 and a first locking member 43, the plate 41 is provided with an assembling portion 5, the plate 41 is provided with a first accommodating cavity 401 and a first accommodating groove 402 which are communicated, the extension body 42 movably penetrates through the first accommodating cavity 401 and extends out of the first accommodating cavity 401, and the first locking member 43 is in threaded connection with the extension body 42 through the first accommodating groove 402 so as to define the relative positions of the extension body 42 and the plate 41.
It will be appreciated that the plate 41 acts as a support and it may be mounted to the steel pipe 100 of the scaffold by means of the mounting portion 5. The extension body 42 movably penetrates through the first accommodating cavity 401 of the plate body 41, the degree of extension body 42 extending out of the first accommodating cavity 401 can be adjusted to adapt to scaffolds with holes of different sizes, and the relative positions of the first plate body 41 and the extension body 42 are locked by adjusting the screwing position of the first locking piece 43 and the extension body 42, so that the effect of closing the holes of the scaffolds is improved.
Further, as shown in fig. 1 and 2, the plate 41 is provided with a second accommodating cavity penetrating through the inner side surface and the outer side surface thereof, and a first filter screen 44 is arranged in the second accommodating cavity.
It can be understood that sunshine enters the tripod through the opening and the second accommodating cavity, so that the brightness in the tripod can be improved, and the construction staff can work in the tripod conveniently. The first filter 44 disposed in the second accommodating chamber can effectively prevent dust from being diffused from the second accommodating chamber to the outside.
Further, as shown in fig. 4, a slot is formed in a side surface of the plate 41 opposite to the other plate 41, the bracket 1 is provided with a guide portion 11, and the guide portion 11 extends into the slot.
It will be appreciated that the guide 11 may act as a guide for the baffle 4. The baffle 4 extends into the slot through the guide part 11, so that the baffle 4 can only move along the extending direction of the guide part 11 in the process of approaching and separating from each other, thereby the area of the invention can be further adjusted according to the size of the opening of the scaffold, and the extending body 42 and the plate body 41 are locked through the first locking piece 43, so that the sealing effect of the invention on the scaffold is improved. Preferably, the upper and lower sides of the bracket 1 are provided with two guide parts 11, respectively, to form an H-shaped structure.
Further, as shown in fig. 5, a portion of the extension body 42 protruding from the first accommodating chamber 401 is mounted with a connection seat 423.
It will be appreciated that between two adjacent baffles 4, a connection may be made via the connecting seat 423 to secure the adjacent baffles 4 and thereby improve the closure within the scaffold. Preferably, the end of the connection seat 423 may be provided with a through hole, and the adjacent baffles 4 may be connected to each other through the through hole.
Further, as shown in fig. 5, the extension body 42 includes a second filter 421 and a supporting portion 422, and the supporting portion 422 is disposed at an outer edge of the second filter 421 and extends along a circumferential direction of the second filter 421.
It can be understood that sunlight enters the tripod through the filter screen, so that the brightness in the tripod can be improved, and further, the construction staff can work in the tripod conveniently. In addition, the second filter 421 can effectively prevent dust from diffusing from the second accommodating chamber to the outside.
Further, as shown in fig. 6, the assembly portion 5 includes a support 51, an arc plate 52 and a second locking member 53, the support 51 is mounted on the baffle 4, the support 51 is provided with a second accommodating cavity and a second accommodating groove 502 which are communicated with each other, the arc plate 52 movably penetrates through the second accommodating cavity and extends out of the second accommodating cavity, the arc plate 52 and the support 51 enclose a third accommodating cavity 501 for accommodating the steel pipe 100, and the second locking member 53 is in threaded connection with the arc plate 52 through the second accommodating groove 502 so as to define the relative position of the support 51 and the arc plate 52.
It can be understood that the arc plate 52 movably penetrates through the second accommodating cavity, the relative position of the arc plate 52 and the support 51 is adjusted, and the rotation position of the second locking piece 53 and the arc plate 52 is adjusted, so that the arc plate 52 and the support 51 can be locked, the arc plate 52 and the support 51 can enclose a third accommodating cavity 501 for the steel pipe 100 to penetrate, and meanwhile, the arc plate 52 can be abutted with the steel pipe 100 to bear the load from the baffle 4 and the support 1, and the invention is fixed in the opening of the scaffold.
The installation process of the invention is as follows: placing the two baffles 4 in the hole formed by the two steel pipes 100, rotating the driving piece 3 to enable the driving piece 3 to drive the pin shaft 22 to move forwards, driving the connecting rod 21 to rotate, and further driving the two baffles 4 to move away from each other until the assembly part 5 is close to the steel pipes 100; the support 51 is leaned against the steel pipe 100, the position of the arc-shaped plate 52 is adjusted, the steel pipe 100 is penetrated into a third accommodating cavity 501 formed by the support 51 and the arc-shaped plate 52 in a surrounding manner, and the second locking piece 53 is locked; the extension body 42 is adjusted to cover the hole as much as possible to complete the installation.
In summary, the embodiment of the invention provides a shielding device for a scaffold, wherein a bracket 1 plays a guiding role for the movement of two baffles 4; the driving piece 3 is movably arranged on the bracket 1, and the two baffles 4 are driven by the transmission mechanism 2 to be close to and far away from each other, so that the area of the scaffold can be adjusted, and the scaffold can be matched with a hole on the scaffold; the baffle 4 can be arranged on the scaffold through the assembly part 5 and is fixed in the opening of the scaffold, so that construction noise in the scaffold can be isolated, sunlight can be shielded for constructors in the scaffold, meanwhile, the baffle 4 has enough structural strength, and constructors falling accidentally can be supported, so that the risk that the constructors fall from a high place is reduced; in addition, when the steel pipe 100 of the scaffold is influenced to deviate, the position between the two baffles 4 is adjusted by the driving piece 3, and the sealing performance of the opening can be kept.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present invention, and these modifications and substitutions should also be considered as being within the scope of the present invention.
Claims (9)
1. The shielding device for the scaffold is characterized by comprising a bracket, a transmission mechanism, a driving piece and two baffles, wherein the two baffles are provided with assembly parts, the two sides of the bracket are respectively and movably provided with the baffles, the driving piece is movably arranged on the bracket, the driving piece is in transmission connection with the baffles through the transmission mechanism, and the driving piece can drive the two baffles to be close to and far away from each other through the transmission mechanism;
the baffle comprises a plate body, an extension body and a first locking piece, wherein the plate body is provided with the assembly part, the plate body is provided with a first accommodating cavity and a first accommodating groove which are communicated with each other, the extension body movably penetrates through the first accommodating cavity and extends out of the first accommodating cavity, and the first locking piece is in threaded connection with the extension body through the first accommodating groove so as to limit the relative position of the extension body and the plate body.
2. The shelter apparatus for a scaffold of claim 1, wherein the transmission mechanism comprises at least two links hinged by a pin, the links being respectively hinged to two of the baffles, and the driving member being in driving connection with the pin.
3. The shielding device for a scaffold according to claim 2, wherein the pin shaft is provided with a movable seat, the movable seat is provided with a movable cavity for the pin shaft to rotate, the bracket is provided with a threaded hole, the driving piece is in threaded connection with the threaded hole, and one end limit of the driving piece is positioned in the movable cavity.
4. The shielding device for a scaffold according to claim 1, wherein the plate body is provided with a second accommodating cavity penetrating through the inner side surface and the outer side surface of the plate body, and a first filter screen is arranged in the second accommodating cavity.
5. The shielding device for a scaffold according to claim 1, wherein a slot is formed in a side surface of the plate body opposite to the other plate body, the bracket is provided with a guide portion, and the guide portion extends into the slot.
6. Shielding device for scaffolds according to claim 1, wherein the portion of the extension body protruding from the first receiving cavity is fitted with a connecting socket.
7. The shielding device for a scaffold according to claim 1, wherein the extension body includes a second screen and a support portion provided at an outer edge of the second screen and extending in a circumferential direction of the second screen, and the first locking member is screw-coupled with the support portion.
8. The shielding device for a scaffold according to claim 1, wherein the assembly part comprises a support, an arc plate and a second locking piece, the support is mounted on the baffle, the support is provided with a second containing cavity and a second containing groove which are communicated, the arc plate movably penetrates through the second containing cavity and extends out of the second containing cavity, the arc plate and the support enclose a third containing cavity for containing a steel pipe, and the second locking piece is in threaded connection with the arc plate through the second containing groove so as to limit the relative position of the support and the arc plate.
9. Shielding device for scaffolds according to any one of claims 1 to 8, wherein the bracket is provided with a shielding portion extending in a direction perpendicular to the movement of the baffles, the shielding portion being located between two baffles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210748712.6A CN115030541B (en) | 2022-06-29 | 2022-06-29 | Shielding device for scaffold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210748712.6A CN115030541B (en) | 2022-06-29 | 2022-06-29 | Shielding device for scaffold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115030541A CN115030541A (en) | 2022-09-09 |
| CN115030541B true CN115030541B (en) | 2023-07-18 |
Family
ID=83126779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210748712.6A Active CN115030541B (en) | 2022-06-29 | 2022-06-29 | Shielding device for scaffold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115030541B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9925425D0 (en) * | 1999-10-28 | 1999-12-29 | Bissimire David K | Scaffold guards |
| KR20200098233A (en) * | 2019-02-11 | 2020-08-20 | 홍중철 | Safe apparatus for preventing fall |
| KR102267639B1 (en) * | 2021-01-16 | 2021-06-18 | 김덕기 | Safety structure device |
| KR102267644B1 (en) * | 2021-01-16 | 2021-06-18 | 김덕기 | Safety structure device |
| CN213868826U (en) * | 2020-10-09 | 2021-08-03 | 中建八局第一建设有限公司 | Novel movable scaffold |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10724257B2 (en) * | 2014-11-26 | 2020-07-28 | Control Dynamics, Inc. | Vertically raising safety rail with dual curtain assembly |
-
2022
- 2022-06-29 CN CN202210748712.6A patent/CN115030541B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9925425D0 (en) * | 1999-10-28 | 1999-12-29 | Bissimire David K | Scaffold guards |
| KR20200098233A (en) * | 2019-02-11 | 2020-08-20 | 홍중철 | Safe apparatus for preventing fall |
| CN213868826U (en) * | 2020-10-09 | 2021-08-03 | 中建八局第一建设有限公司 | Novel movable scaffold |
| KR102267639B1 (en) * | 2021-01-16 | 2021-06-18 | 김덕기 | Safety structure device |
| KR102267644B1 (en) * | 2021-01-16 | 2021-06-18 | 김덕기 | Safety structure device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115030541A (en) | 2022-09-09 |
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