CN109057297A - A kind of shield structural repair movable lifting platform - Google Patents
A kind of shield structural repair movable lifting platform Download PDFInfo
- Publication number
- CN109057297A CN109057297A CN201810930784.6A CN201810930784A CN109057297A CN 109057297 A CN109057297 A CN 109057297A CN 201810930784 A CN201810930784 A CN 201810930784A CN 109057297 A CN109057297 A CN 109057297A
- Authority
- CN
- China
- Prior art keywords
- workbench
- hinge
- platform
- guardrail
- movable lifting
- 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.)
- Pending
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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
- E04G1/00—Scaffolds primarily resting on the ground
- E04G1/18—Scaffolds primarily resting on the ground adjustable in height
-
- 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
- E04G1/00—Scaffolds primarily resting on the ground
- E04G1/15—Scaffolds primarily resting on the ground essentially comprising special means for supporting or forming platforms; Platforms
-
- 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
- E04G1/00—Scaffolds primarily resting on the ground
- E04G1/24—Scaffolds primarily resting on the ground comprising essentially special base constructions; comprising essentially special ground-engaging parts, e.g. inclined struts, wheels
-
- 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
- E04G5/02—Scaffold feet, e.g. with arrangements for adjustment
-
- 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
- E04G1/00—Scaffolds primarily resting on the ground
- E04G1/15—Scaffolds primarily resting on the ground essentially comprising special means for supporting or forming platforms; Platforms
- E04G2001/157—Extensible platforms, e.g. telescopic platforms
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Movable Scaffolding (AREA)
Abstract
The invention discloses a kind of shield structural repair movable lifting platforms, including ground, shaft and workbench, rail is installed above the ground, and rail is fixedly arranged above wheel, fixed frame is installed on the left of the shaft, and shaft is located at the inside of wheel, pedestal is provided with above the fixed frame, and balance fixed jaw is installed above pedestal, support frame is provided on the right side of the balance fixed jaw, and crane is mounted on the right side of support frame, the inside of the crane is equipped with driving wheel, the workbench is internally provided with telescopic platform, and workbench is located at the top of crane, lower guardrail is mounted with above the workbench, and hinge is connected with above lower guardrail, the outer surface of the hinge is fixed with screw, and guardrail is connected with above hinge.The movable lifting height of table being used in subway tunnel can be adjusted, and the left and right sides can extend, and job area is big, and be convenient for moving.
Description
Technical field
The present invention relates to subway tunnel technical field, specially a kind of shield structural repair movable lifting platform.
Background technique
Tunnel is the engineering works being embedded in stratum, is a kind of form of human use's underground space.Tunnel can divide
For traffic tunnel, Hydraulic Tunnel, municipal tunnel and mining tunnel etc., subway is a kind of form of railway transportation, refers to and transports in underground
The abbreviation of the City Rail Transit System of behavior master, i.e. underground railway or subway, subway tunnel are one kind of traffic tunnel.
However existing subway tunnel maintenance efficiency is lower, maintenance time is short, and maintenance time is morning four in daily tunnel
Thirty, individual transit tunnel distances are longer, and two-way time occupancy is more, and materials hauling tool occupancy personnel are more, usual 2 to 3 people
Work, but need 5 to 6 people, installations and facilities are more in tunnel, and ascending tool is not applicable, dangerous, more for maintenance construction
Portable safety, it is proposed that a kind of height can be adjusted, the left and right sides can extend, and job area is big, and be convenient for
Mobile self-powered platform.
Summary of the invention
The purpose of the present invention is to provide a kind of shield structural repair movable lifting platforms, to solve above-mentioned background skill
The existing subway tunnel maintenance efficiency proposed in art is lower, and maintenance time is short, and maintenance time is 4 points of morning in daily tunnel
Half, individual transit tunnel distances are longer, and two-way time occupancy is more, and materials hauling tool occupancy personnel are more, usual 2 to 3 people's
Work, but needs 5 to 6 people, and installations and facilities are more in tunnel, and ascending tool is not applicable, unsafe problem.
To achieve the above object, the invention provides the following technical scheme: a kind of shield structural repair movable lifting is flat
Platform, including ground, shaft and workbench, are equipped with rail above the ground, and rail is fixedly arranged above wheel, described
Fixed frame is installed, and shaft is located at the inside of wheel, is provided with pedestal, and pedestal above the fixed frame on the left of shaft
Top balance fixed jaw is installed, be provided with support frame on the right side of the balance fixed jaw, and be mounted on the right side of support frame
Crane, the inside of the crane are equipped with driving wheel, and the workbench is internally provided with telescopic platform, and workbench is located at
The top of crane is mounted with lower guardrail above the workbench, and is connected with hinge above lower guardrail, the hinge
Outer surface is fixed with screw, and guardrail is connected with above hinge, reinforcing rib is provided on the left of the driving wheel, and add
Terraced body is installed on the left of strengthening tendons.
Preferably, to be fixedly connected between balance fixed jaw and the pedestal, and it is vertical between balance fixed jaw and ground,
And the vertical centerline balanced between fixed jaw about pedestal is symmetrical.
Preferably, the crane is rolled by driving wheel and support frame and is connected, and workbench passes through crane and support
Cooperation and pedestal between frame constitute lifting structure.
It preferably, is in slide construction between the telescopic platform and workbench, and telescopic platform is in the inner vertical side of workbench
Upward parallelly distribute on.
Preferably, the upper terraced body is internally provided with slideway, and the positioned inside of slideway has sliding block, the upper terraced body
Lower section is connected with descending stair body, and the hinge is connected with upper guardrail and lower guardrail respectively by screw, and upper guardrail passes through hinge
Rotational structure is constituted with lower guardrail, and structure is identical between upper guardrail and lower guardrail.
Preferably, the top end surface of the telescopic platform is provided with anti-skid chequer, and hinge is connected on the left of telescopic platform, described
Extension board is fixed on the left of hinge, the pedestal is connected by fixed frame with wheel, and wheel passes through shaft and fixed frame
Rotational structure is constituted, and size matches between wheel and rail.
Preferably, it is fitted with spring base above the workbench, and damping spring is installed above spring base, it is described
Damping spring is fixedly arranged above support plate, and structure is identical between the upper terraced body and descending stair body, and descending stair body by sliding block and
Cooperation and upper terraced body between slideway constitute slide construction.
Preferably, the telescopic platform constitutes coarse structure by anti-skid chequer, and extension board is made up of hinge and workbench
Rotational structure, and the rotational angle of extension board is 0 to 90 °.
Preferably, parallel between the workbench and support plate, and the length of workbench horizontal direction and support plate are horizontal
The equal length in direction, and support plate constitutes elastic construction with workbench by the cooperation between damping spring and spring base.
1, the present invention passes through the setting of shaft, wheel and rail, and shaft is able to drive wheel and is rotated, to keep this flat
Rolling friction is transformed by sliding friction the frictional force between ground when platform moves, is greatly reduced when platform moves and ground
The frictional force that face generates, keeps the movement of platform more convenient, to allow platform to repairing everywhere in subway tunnel.
2, by the setting of balance fixed jaw and rail, platform and rail can be consolidated the present invention by balancing fixed jaw
It is fixed, to play the role of the fixed effect of brake, while balanced support is played to platform, keeps platform more flat when placing
Surely, it will not shake, avoid the case where platform is toppled over, improve the safety of platform.
3, the present invention passes through the setting of driving wheel, crane and support frame, by the rolling of driving wheel, crane is driven to exist
It is moved on support frame, so that the position on workbench vertical direction be adjusted, allows the height of platform according to need
It asks and is adjusted, can according to need selection accumulator electric jacking system or hand lifting.
4, the present invention passes through the setting of telescopic platform, anti-skid chequer, hinge and extension board, and telescopic platform can be in the inside of workbench
The movement carried out in horizontal direction expands the job area of platform to expand the horizontal length of workbench, anti-skidding
Line improves the frictional force of telescopic platform, keeps standing of the maintenance personal on telescopic platform more steady, will not occur sole skid and
The accident dropped, improves the safety of telescopic platform, and extension board can prevent edge of the maintenance personal from telescopic platform after having turned
It drops, further improves the safety of telescopic platform.
5, the present invention is led to by the setting of hinge, upper guardrail, lower guardrail, pedestal, upper terraced body, slideway, sliding block and descending stair body
Crossing hinge may be rotated guardrail, under upper guardrail is turned, so that guardrail and lower guardrail be made to fold, reduce
Platform in usually the space occupied, pedestal can tool, material etc. to be needed in loading operation, save transport time and manpower,
Descending stair body constitutes slide construction with upper terraced body by the cooperation between sliding block and slideway, can make to tie up by upper terraced body and descending stair body
Personnel are repaired in the case where not falling workbench, from movable workbench to pedestal, personnel easy to repair carry out subway tunnel
It takes when maintenance to the maintenance tool on pedestal.
Detailed description of the invention
Fig. 1 is schematic view of the front view of the present invention；
Fig. 2 is side structure schematic diagram of the present invention；
Fig. 3 is telescopic platform structural schematic diagram of the present invention.
Fig. 4 is Working table structure schematic diagram of the present invention.
Fig. 5 is enlarged structure schematic diagram at A of the present invention.
In figure: 1, ground；2, rail；3, wheel；4, shaft；5, pedestal；6, fixed jaw is balanced；7, support frame；8, it goes up and down
Frame；9, driving wheel；10, workbench；11, telescopic platform；12, lower guardrail；13, upper guardrail；14, hinge；15, screw；16, fixed
Frame；17, reinforcing rib；18, upper terraced body；19, slideway；20, sliding block；21, descending stair body；22, anti-skid chequer；23, hinge；24, extension board；
25, spring base；26, damping spring；27, support plate.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-5 is please referred to, the present invention provides a kind of technical solution: a kind of shield structural repair movable lifting platform,
Including ground 1, shaft 4 and workbench 10, the top of ground 1 is equipped with rail 2, and rail 2 is fixedly arranged above wheel 3, turns
The left side of axis 4 is equipped with fixed frame 16, and shaft 4 is located at the inside of wheel 3, and the top of fixed frame 16 is provided with pedestal 5, and bottom
The top of seat 5 is equipped with balance fixed jaw 6, balances to be fixedly connected between fixed jaw 6 and pedestal 5, and balances fixed jaw 6 and ground
It is vertical between base 1, and the vertical centerline balanced between fixed jaw 6 about pedestal 5 is symmetrical, and balance fixed jaw 6 can will be put down
Platform is fixed with rail 2, to play the role of the fixed effect of brake, while playing balanced support to platform, makes to put down
Platform is more steady when placing, and will not shake, avoid the case where platform is toppled over, improve the safety of platform, pedestal 5
Be connected by fixed frame 16 with wheel 3, and wheel 3 constitutes rotational structure by shaft 4 and fixed frame 16, and wheel 3 with
Size matches between rail 2, and shaft 4 is able to drive wheel 3 and is rotated, thus when keeping the platform mobile between ground
Frictional force is transformed into rolling friction by sliding friction, is greatly reduced the frictional force generated when platform movement with ground, makes to put down
The movement of platform is more convenient, to allow platform to repairing everywhere in subway tunnel, the right side of balance fixed jaw 6 is arranged
There is support frame 7, and the right side of support frame 7 is mounted with crane 8, the inside of crane 8 is equipped with driving wheel 9, workbench 10
It is internally provided with telescopic platform 11, and workbench 10 is located at the top of crane 8, crane 8 is rolled by driving wheel 9 and support frame 7
Dynamic connection, and workbench 10 constitutes lifting structure with pedestal 5 by the cooperation between crane 8 and support frame 7, passes through driving wheel
9 rolling drives crane 8 to be moved on support frame 7, to adjust to the position on 10 vertical direction of workbench
Section, is adjusted the height of platform according to demand, can according to need selection accumulator electric jacking system or hand
Lifting is in slide construction between telescopic platform 11 and workbench 10, and telescopic platform 11 is put down on the inner vertical direction of workbench 10
Row distribution, telescopic platform 11 can carry out the movement in horizontal direction in the inside of workbench 10, to expand the water of workbench 10
Flat length expands the job area of platform, and the top of workbench 10 is mounted with lower guardrail 12, and lower guardrail 12 is upper
Side is connected with hinge 14, and the outer surface of hinge 14 is fixed with screw 15, and the top of hinge 14 is connected with guardrail 13, hinge
14 are connected with upper guardrail 13 and lower guardrail 12 respectively by screw 15, and upper guardrail 13 is made up of hinge 14 and lower guardrail 12
Rotational structure, and structure is identical between upper guardrail 13 and lower guardrail 12, may be rotated upper guardrail 13 by hinge 14,
By under 13 turns of upper guardrail, so that guardrail 13 and lower guardrail 12 be made to fold, platform is reduced in usually the space occupied,
The left side of driving wheel 9 is provided with reinforcing rib 17, and the left side of reinforcing rib 17 is equipped with terraced body 18, the inside setting of upper ladder body 18
There is slideway 19, and the positioned inside of slideway 19 has sliding block 20, the lower section of upper ladder body 18 is connected with descending stair body 21, and upper ladder body 18 is under
Structure is identical between terraced body 21, and descending stair body 21 constitutes sliding knot with upper terraced body 18 by the cooperation between sliding block 20 and slideway 19
Structure can make maintenance personal in the case where not falling workbench 10, from workbench 10 by upper terraced body 18 and descending stair body 21
It is moved to pedestal 5, is taken when personnel easy to repair repair subway tunnel to the maintenance tool on pedestal 5, is stretched
The top end surface of platform 11 is provided with anti-skid chequer 22, and the left side of telescopic platform 11 is connected with hinge 23, and the left side of hinge 23 is fixed with
Extension board 24, telescopic platform 11 constitutes coarse structure by anti-skid chequer 22, and extension board 24 is made up of hinge 23 and workbench 11
Rotational structure, and the rotational angle of extension board 24 is 0 to 90 °, and anti-skid chequer 22 improves the frictional force of telescopic platform 11, makes to repair
Standing of the personnel on telescopic platform 11 is more steady, and the accident that sole skids and drops, energy after 24 turns of extension board will not occur
It enough prevents maintenance personal from dropping from the edge of telescopic platform 11, further improves the safety of telescopic platform 11, workbench 10
Top be fitted with spring base 25, and the top of spring base 25 is equipped with damping spring 26, and damping spring 26 is fixedly arranged above
Support plate 27, it is parallel between workbench 10 and support plate 27, and the length of 10 horizontal direction of workbench and 27 level side of support plate
To equal length, and support plate 27 constitutes elasticity by cooperation between damping spring 26 and spring base 25 and workbench 10
Structure, damping spring 26 play the role of damping, buffering, can buffer the active force that support plate 27 is subject to, to be promoted
The gravity that support plate 27 and workbench 10 can be born, improves the stability of platform.
Working principle: will need the article that carries to be placed on pedestal 5 this kind of self-powered platform first, then by platform
It takes suitable position to, then by stage+module to rail 2, is rotated by shaft 4 with motor car wheel 3, to make the platform
Rolling friction is transformed by sliding friction the frictional force between ground when moving, is greatly reduced when platform moves and ground
The frictional force of generation keeps the movement of platform more convenient, to allow platform to repairing everywhere in subway tunnel, will put down
Platform is moved to suitable position, provides positioning balance to platform by balance fixed jaw 6, by the rolling of driving wheel 9, drives and rise
Drop frame 8 is moved on support frame 7, so that the position on 10 vertical direction of workbench be adjusted, workbench 10 is adjusted
Section is to suitable height, then the movement by telescopic platform 11 in the inside of workbench 10 progress horizontal direction, to expand work
Make the horizontal length of platform 10, then played 13 turns of upper guardrail by hinge 14, makes guardrail 13 and lower guardrail 12 to workbench 10
Surrounding provides protection, by movement of the sliding block 20 inside slideway 19, descending stair body 21 is driven to carry out the tune of position on vertical direction
Section, is adjusted to suitable position for descending stair body 21, maintenance personal can be made not by work by upper terraced body 18 and descending stair body 21
In the case that platform 10 is fallen, it is moved to pedestal 5 from workbench 10, to pedestal when personnel easy to repair repair subway tunnel
Maintenance tool on 5 is taken, and anti-skid chequer 22 improves the frictional force of telescopic platform 11, makes maintenance personal on telescopic platform 11
It stands more steady, 24 turns of extension board is risen by hinge 23, maintenance personal can be prevented from telescopic platform after 24 turns of extension board
11 edge is dropped, and the safety of telescopic platform 11 is further improved, and damping spring 26 plays the role of damping, buffering, energy
It is enough to buffer the active force that support plate 27 is subject to, to improve support plate 27 and gravity that workbench 10 can be born, mention
The stability of platform has been risen, has completed the use process of entire self-powered platform like this.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (9)
1. a kind of shield structural repair movable lifting platform, including ground (1), shaft (4) and workbench (10), feature
It is: is equipped with rail (2) above the ground (1), and rail (2) is fixedly arranged above wheel (3), the shaft (4)
Left side be equipped with fixed frame (16), and shaft (4) is located at the inside of wheel (3), is provided with above the fixed frame (16)
Pedestal (5), and balance fixed jaw (6) is installed above pedestal (5), support is provided on the right side of the balance fixed jaw (6)
Frame (7), and crane (8) are mounted on the right side of support frame (7), the inside of the crane (8) is equipped with driving wheel (9), institute
Being internally provided with telescopic platform (11) for workbench (10) is stated, and workbench (10) is located at the top of crane (8), the workbench
(10) it is mounted with above lower guardrail (12), and is connected with hinge (14) above lower guardrail (12), outside the hinge (14)
Portion surface is fixed with screw (15), and guardrail (13) are connected with above hinge (14), the left side setting of the driving wheel (9)
Have reinforcing rib (17), and terraced body (18) is installed on the left of reinforcing rib (17).
2. a kind of shield structural repair movable lifting platform according to claim 1, it is characterised in that: the balance
To be fixedly connected between fixed jaw (6) and pedestal (5), and it is vertical between balance fixed jaw (6) and ground (1), and balance solid
The vertical centerline determined between pawl (6) about pedestal (5) is symmetrical.
3. a kind of shield structural repair movable lifting platform according to claim 1, it is characterised in that: the lifting
Frame (8) is rolled by driving wheel (9) and support frame (7) and is connected, and workbench (10) by crane (8) and support frame (7) it
Between cooperation and pedestal (5) constitute lifting structure.
4. a kind of shield structural repair movable lifting platform according to claim 1, it is characterised in that: described flexible
It is in slide construction between platform (11) and workbench (10), and telescopic platform (11) is parallel on the inner vertical direction of workbench (10)
Distribution.
5. a kind of shield structural repair movable lifting platform according to claim 1, it is characterised in that: the upper ladder
Body (18) is internally provided with slideway (19), and the positioned inside of slideway (19) has sliding block (20), under the upper terraced body (18)
Side is connected with descending stair body (21), and the hinge (14) is connected with upper guardrail (13) and lower guardrail (12) respectively by screw (15)
It connects, and upper guardrail (13) constitutes rotational structure, and upper guardrail (13) and lower guardrail by hinge (14) and lower guardrail (12)
(12) structure is identical between.
6. a kind of shield structural repair movable lifting platform according to claim 1, it is characterised in that: described flexible
The top end surface of platform (11) is provided with anti-skid chequer (22), and hinge (23), the hinge are connected on the left of telescopic platform (11)
(23) it is fixed on the left of extension board (24), the pedestal (5) is connected by fixed frame (16) with wheel (3), and wheel (3)
Rotational structure is constituted by shaft (4) and fixed frame (16), and size matches between wheel (3) and rail (2).
7. a kind of shield structural repair movable lifting platform according to claim 5, it is characterised in that: the work
It is fitted with above platform (10) spring base (25), and damping spring (26) is installed above spring base (25), the damping bullet
Spring (26) is fixedly arranged above support plate (27), and structure is identical between the upper terraced body (18) and descending stair body (21), and descending stair body
(21) slide construction is constituted with upper terraced body (18) by the cooperation between sliding block (20) and slideway (19).
8. a kind of shield structural repair movable lifting platform according to claim 6, it is characterised in that: described flexible
Platform (11) constitutes coarse structure by anti-skid chequer (22), and extension board (24) is made up of hinge (23) and workbench (11) and rotates
Structure, and the rotational angle of extension board (24) is 0 to 90 °.
9. a kind of shield structural repair movable lifting platform according to claim 7, it is characterised in that: the work
It is parallel between platform (10) and support plate (27), and the length of the length of workbench (10) horizontal direction and support plate (27) horizontal direction
Spend equal, and support plate (27) passes through cooperation between damping spring (26) and spring base (25) and workbench (10) composition bullet
Property structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810930784.6A CN109057297A (en) | 2018-08-15 | 2018-08-15 | A kind of shield structural repair movable lifting platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810930784.6A CN109057297A (en) | 2018-08-15 | 2018-08-15 | A kind of shield structural repair movable lifting platform |
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| CN109057297A true CN109057297A (en) | 2018-12-21 |
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ID=64686043
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| CN201810930784.6A Pending CN109057297A (en) | 2018-08-15 | 2018-08-15 | A kind of shield structural repair movable lifting platform |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111519938A (en) * | 2020-05-14 | 2020-08-11 | 金煌杰 | Steel structure supporting beam column for building construction and mounting method thereof |
| CN112700818A (en) * | 2020-12-24 | 2021-04-23 | 辽宁科技学院 | Multifunctional instrument and meter overhauling equipment |
| CN113216587A (en) * | 2021-05-13 | 2021-08-06 | 中建一局集团建设发展有限公司 | High-rise building outer wall construction operation platform fixing structure and construction method thereof |
| CN115126404A (en) * | 2022-06-24 | 2022-09-30 | 保利长大工程有限公司 | Slidable culvert safety cat ladder |
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