CN116065810A - Turnover adjustable climbing formwork or climbing frame auxiliary support and construction method thereof - Google Patents
Turnover adjustable climbing formwork or climbing frame auxiliary support and construction method thereof Download PDFInfo
- Publication number
- CN116065810A CN116065810A CN202310160299.6A CN202310160299A CN116065810A CN 116065810 A CN116065810 A CN 116065810A CN 202310160299 A CN202310160299 A CN 202310160299A CN 116065810 A CN116065810 A CN 116065810A
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- Prior art keywords
- climbing
- lattice column
- diagonal brace
- lattice
- square
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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
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
- E04G11/20—Movable forms; Movable forms for moulding cylindrical, conical or hyperbolical structures; Templates serving as forms for positioning blocks or the like
- E04G11/28—Climbing forms, i.e. forms which are not in contact with the poured concrete during lifting from layer to layer and which are anchored in the hardened concrete
-
- 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
- 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
Abstract
The invention discloses an turnover adjustable climbing formwork or climbing frame auxiliary support and a construction method thereof, wherein the auxiliary support comprises a lattice column and inclined stay bars, the lattice column comprises a plurality of square units which are vertically connected one by one, each square unit is a cube frame structure formed by welding a cross beam and a stand column, a horizontal inner support is arranged between the cross beams, lattice column fixing holes are formed in the inner support, assembly holes are formed in the cross beams close to four corners, adjacent square units are connected and assembled into the lattice column through bolts, the lattice column is connected with pre-buried lattice column fixing bolts on a floor slab through lattice column fixing holes in the square units of the lowest layer, and the inclined stay bars are obliquely supported between the lattice column and the floor slab. The invention has wide applicability, strong turnover capability, convenient transportation, installation and disassembly, is beneficial to the overall planning of the field and meets the actual field and market demands.
Description
Technical Field
The invention relates to the field of building construction, in particular to a turnover adjustable climbing formwork or climbing frame auxiliary support and a construction method thereof.
Background
At present, the installation and the attachment of the climbing form or the climbing frame mainly take an integral lattice column as an auxiliary support to support the climbing form or the climbing frame, but the existing integral lattice column has obvious defects: 1. the practical range is small, and the integral lattice column is fixed in height, so that the integral lattice column can only be suitable for buildings with single-layer height, and for super high-rise buildings or staggered-layer design positions, new lattice columns can only be customized; 2. can only be used once, can not be used in a turnover way, and increases the construction cost; 3. the integral lattice column has large volume, heavy weight, difficult transportation, installation and disassembly and certain potential safety hazard.
Therefore, how to create a new turnover adjustable climbing form or climbing frame auxiliary support and a construction method thereof is one of the important research and development problems at present.
Disclosure of Invention
The invention aims to solve the technical problem of providing the turnover adjustable climbing formwork or the climbing frame auxiliary support, so that the height of the turnover adjustable climbing formwork or the climbing frame auxiliary support can be flexibly adjusted, the transportation, the installation and the disassembly are convenient, and the turnover adjustable climbing formwork or the climbing frame auxiliary support can be reused, thereby overcoming the defects of the prior art.
In order to solve the technical problems, the invention provides an turnover adjustable climbing formwork or climbing frame auxiliary support, which comprises a lattice column and inclined stay bars, wherein the lattice column comprises a plurality of square units which are vertically connected one by one, each square unit is a cube frame structure formed by welding a cross beam and a stand column, a horizontal inner support is arranged between the cross beams, a lattice column fixing hole is formed in the inner support, assembly holes are formed in the cross beams close to four corners, adjacent square units are assembled into the lattice column through bolt connection, the lattice column is connected with a pre-buried lattice column fixing bolt on a floor slab through a lattice column fixing hole on the square unit at the lowest layer, and the inclined stay bars are obliquely supported between the lattice column and the floor slab.
As an improvement of the invention, an inner diagonal brace is arranged in the vertical elevation of the square upright post unit, and the inner diagonal brace is made of 5# channel steel.
Furthermore, corner plates are welded at four corners of the vertical elevation of the square upright post unit, and the corner plates are made of 5mm thick steel plates.
Further, the inner support at the top of the square unit and the inner support at the bottom are positioned in different vertical planes, and two adjacent square units are connected in an up-down mirror image mode.
Further, the square unit is 400mm long and 300mm wide and 600mm high, and the cross beam and the upright post are made of 5# channel steel.
Further, the inclination angle between the diagonal brace and the floor slab is 45-65 degrees.
Further, the diagonal brace comprises an adjustable rod and a fixed rod, the fixed rod is located at two ends of the diagonal brace, the adjustable rod is located in the middle of the diagonal brace, the adjustable rod comprises a sleeve, a screw and a nut, the nut is welded in the sleeve, the screw is screwed into the sleeve from two ends and is in threaded connection with the nut, and the rotating sleeve is used for adjusting the overall length of the adjustable rod.
Further, the fixed rod is a phi 48 multiplied by 3.6 steel pipe, the sleeve is a phi 60 multiplied by 3.6 steel pipe, the screw is M30 in specification, the nut is M30 in specification, the length of the screw is not less than 500mm, the whole adjusting length of the adjustable rod is 1.1-1.8M, and the sleeve is provided with a phi 6 observation hole.
Further, the end parts of the two ends of the diagonal brace and the outer side of the cross beam of the square unit are welded with lug plates, and the lug plates are installed on the floor slab through expansion bolts, so that the two ends of the diagonal brace are respectively connected with the lattice column and the floor slab through the lug plates and the bolts.
In addition, the invention also provides a construction method, so that the construction method can meet the installation requirements of the climbing form or the climbing frame under different layer heights, the auxiliary support is simple to install and disassemble, and the construction efficiency is high, thereby overcoming the defects of the prior art.
In order to solve the technical problems, the invention provides a construction method, which adopts the turnover adjustable climbing formwork or the climbing frame auxiliary support to carry out construction, and comprises the following specific steps:
s1, determining the height of the lattice column
Determining the height of the lattice columns according to the building layer height, the climbing form or the climbing frame attachment position and the vertical distance, dividing the height of the lattice columns by the height of the square units, rounding, and calculating to obtain the number of the square units;
s2, pre-buried lattice column fixing bolt
Determining the position of a lattice column according to a plan view of the climbing formwork or the climbing frame, and embedding lattice column fixing bolts in an auxiliary manner by adopting a steel sleeve, wherein the steel sleeve is two vertical hollow sleeves, the outer wall of the steel sleeve is fixedly connected through a horizontal connecting rod, and the lattice column fixing bolts penetrate through the steel sleeve to be embedded for ensuring consistent spacing;
s3, assembling lattice column
The structural surface of the floor slab is cleaned before assembly, the structural surface strength is ensured to be more than 5Ma, the structural surface is smooth and free of accumulated water, the first square unit is firstly installed during assembly, the first square unit is selected to be vertically arranged or inversely arranged according to the position of a lattice column fixing bolt, the lattice column fixing bolt passes through a lattice column fixing hole and then is locked with a nut, then the second square unit is connected with the first square unit in a mode of being vertically mirrored and is connected with the first square unit through a bolt, the installation of each square unit is completed one by one through pushing in the same way, and the surface of the lug plate of the square unit positioned at the uppermost layer faces the inside of a building;
s4, installing diagonal brace
Pre-installing the diagonal brace after the diagonal brace is adjusted to the maximum length to determine the installation position of the lug plate on the floor slab, after the lug plate is fixed through the embedded bolt, connecting the two ends of the diagonal brace between the floor slab and the lattice column in an inclined mode, ensuring that the angle between the diagonal brace and the floor slab is 45-65 degrees, slowly adjusting the length of the diagonal brace after the installation is completed, and stopping adjusting and locking the length of the diagonal brace at the position where the lattice column is to be inclined inwards but not inclined;
s5, installing and lifting the climbing form or the climbing frame
According to the design requirement of the climbing form or the climbing frame, the climbing form or the climbing frame is attached to the lattice column, and after the structural concrete reaches the lifting strength, tissue lifting is started.
With such a design, the invention has at least the following advantages:
1. the lattice column is assembled by modularized square units, and the height of the lattice column can be flexibly adjusted so as to be suitable for different layer heights or local staggered layer structures;
2. the square units are connected through bolts, and can be repeatedly recycled after being disassembled, so that the construction cost is reduced;
3. the single square unit is small in size, light in weight, convenient to transport and store, convenient to install and detach, free of large hoisting equipment entering, beneficial to on-site overall planning and capable of avoiding potential safety hazards.
Drawings
The foregoing is merely an overview of the present invention, and the present invention is further described in detail below with reference to the accompanying drawings and detailed description.
Fig. 1 is a schematic diagram of an installation structure of an turnover adjustable climbing form or climbing frame auxiliary support.
Fig. 2 is a schematic structural view of the lattice column according to the present invention.
Fig. 3 is a schematic structural view of a square unit in the present invention.
Fig. 4 is a schematic structural view of the diagonal brace of the present invention.
Fig. 5 is a schematic view of the structure of the steel sleeve of the present invention.
Reference numerals illustrate: 1. lattice columns; 2. a diagonal brace; 3. climbing forms or frames; 4. square units; 5. a cross beam; 6. a column; 7. an inner diagonal brace; 8. an inner support; 9. a corner plate; 10. lattice column fixing holes; 11. an assembly hole; 12. ear plates; 13. a fixed rod; 14. an adjustable lever; 15. a sleeve; 16. a screw; 17. a steel sleeve.
Detailed Description
Referring to fig. 1 to 4, the invention provides an adjustable turnover climbing formwork or climbing frame auxiliary support, which comprises a lattice column 1 and an inclined strut 2, wherein the lattice column 1 is vertically erected on a floor slab, an attachment support is provided for the climbing formwork or climbing frame 3, and the inclined strut 2 is inclined between the lattice column 1 and the floor slab so as to improve the support strength of the lattice column 1.
The lattice column 1 comprises a plurality of square units 4 which are vertically connected one by one, and the square units 4 are assembled into the lattice column 1 through bolt connection. The square unit 4 is of a cubic frame structure and comprises a cross beam 5, a stand column 6, an inner diagonal brace 7 and an inner brace 8. The cross beam 5 and the upright post 6 are welded into a cubic frame, in the vertical elevation of the square unit 4, the joint of the cross beam 5 and the upright post 6 is welded with a corner plate 9 so as to increase the integrity of the square unit 4, the inner diagonal bracing 7 is welded and connected in the vertical elevation so as to increase the structural strength, the inner bracing 8 is welded between the cross beams 5 in a horizontal way, three lattice column fixing holes 10 are formed in the inner bracing 8, assembly holes 11 are formed in the cross beam 5 near the four corners, and lug plates 12 are welded on the outer side of the cross beam 5 and used for being connected with the diagonal bracing 2.
In this embodiment, the square unit 4 has a length of 400mm, a width of 300mm and a height of 600mm, the cross beam 5, the upright post 6 and the inner diagonal brace 7 are all made of 5# channel steel, and the corner plate 9 is made of 5mm thick steel plate.
Preferably, each square unit 4 has two internal braces 8 at its top and bottom, respectively, the internal braces 8 at the top and bottom being in different vertical planes, so that the design provides the first square unit 4 connected to the floor with two mounting modes, i.e. a positive and an inverted, that two different positions of lattice column fixing holes 10 are provided, so as to avoid interference with the steel bars in the floor. The adjacent square units 4 are connected in a mode of upper and lower mirror images.
The diagonal brace 2 is connected between the lattice column 1 and the floor slab, and the angle between the diagonal brace 2 and the floor slab is 45-65 degrees. The diagonal brace 2 comprises an adjustable rod 14 and a fixed rod 13, wherein the fixed rod 13 is positioned at two ends of the diagonal brace 2, and the adjustable rod 14 is positioned in the middle of the diagonal brace 2. The adjustable rod 14 comprises a sleeve 15, a screw 16 and a nut, wherein the nut is welded in the sleeve 15, the screw 16 is screwed into the sleeve 15 from two ends and is in threaded connection with the nut, and the sleeve 16 is rotated to adjust the whole length of the adjustable rod 14. The two end parts of the fixed rod 13 are welded with the lug plates 12, and are respectively connected with the lug plate 12 at the topmost end of the lattice column 1 and the lug plate 12 on the floor slab through bolts.
In this embodiment, the fixing rod 13 is a steel tube with phi 48×3.6, the sleeve 15 is a steel tube with phi 60×3.6, the screw 16 is M30 in specification, the nut is M30 in specification, the length of the screw 16 is not less than 500mm, the overall adjusting length of the adjustable rod 14 is 1.1M-1.8M, and the sleeve 15 is provided with a phi 6 observation hole.
The invention also provides a construction method for constructing the lattice column 1, the diagonal brace 2 and the climbing formwork or the climbing frame, which comprises the following specific steps:
s1, determining the height of the lattice column
Determining the height of the lattice columns according to the building layer height, the climbing form or the attachment position of the climbing frame 3 and the vertical distance, dividing the height of the lattice columns 1 by the height of the square units 4, rounding, and calculating to obtain the number of the square units 4;
s2, pre-buried lattice column fixing bolt
Determining the position of the lattice column 1 according to a plan view of the climbing form or the climbing frame 3, and embedding lattice column fixing bolts with the aid of steel sleeves 17, referring to fig. 5, wherein the steel sleeves 17 are two vertical hollow sleeves, the outer walls are fixedly connected through horizontal connecting rods, and the lattice column fixing bolts penetrate through the steel sleeves 17 to be embedded for ensuring consistent spacing;
s3, assembling lattice column
The structural surface of the floor slab is cleaned before assembly, the structural surface strength is ensured to be more than 5Ma, the structural surface is smooth and free of accumulated water, the first square unit 4 is firstly installed during assembly, the first square unit 4 is selected to be vertically arranged or inversely arranged according to the position of a lattice column fixing bolt, the lattice column fixing bolt passes through a lattice column fixing hole and then is locked with a nut, then the second square unit 4 is connected with the first square unit 4 in a mode of being vertically mirrored, and is connected through bolts, so that the installation of each square unit is completed one by one through pushing, and the lug plates 12 of the square units 4 positioned at the uppermost layer face the inside of a building;
s4, installing diagonal brace
The diagonal brace 2 is pre-installed after being adjusted to the maximum length, so that the installation position of the lug plate 12 on the floor slab is determined, after the lug plate 12 is fixed through the embedded bolt, two ends of the diagonal brace 2 are obliquely connected between the floor slab and the lattice column 1, the angle between the diagonal brace 2 and the floor slab is guaranteed to be 45-65 degrees, the length of the diagonal brace 2 is slowly adjusted after the installation is completed, and the adjustment and the locking of the length of the diagonal brace 2 are stopped at the position where the lattice column 1 is to be inclined inwards but not inclined;
s5, installing and lifting the climbing form or the climbing frame
According to the design requirement of the climbing form or the climbing frame 3, the climbing form or the climbing frame 3 is attached to the lattice column 1, and after the structural concrete reaches the lifting strength, tissue lifting is started.
The above description is only of the preferred embodiments of the present invention, and is not intended to limit the invention in any way, and some simple modifications, equivalent variations or modifications can be made by those skilled in the art using the teachings disclosed herein, which fall within the scope of the present invention.
Claims (10)
1. The utility model provides an adjustable climbing form of turnover or climbing frame auxiliary support, its characterized in that, including lattice post and diagonal brace, the lattice post includes the square unit that the several is vertical to meet one by one, square unit is the cube frame construction that crossbeam and stand welding formed, is equipped with horizontally internal stay between the crossbeam, and it has lattice post fixed orifices to open on the internal stay, and it has the equipment hole to open near the four corners position on the crossbeam, and adjacent square unit passes through bolted connection to assemble into the lattice post, and the lattice post passes through the lattice post fixed orifices on the square unit of lower floor and the pre-buried lattice post fixed bolt connection on the floor, diagonal brace slope support is between lattice post and floor.
2. The turnover adjustable climbing form or climbing frame auxiliary support according to claim 1, wherein an inner diagonal brace is arranged in the vertical elevation of the square upright post unit, and the inner diagonal brace is made of 5# channel steel.
3. The turnover adjustable climbing form or climbing frame auxiliary support according to claim 1, wherein corner plates are welded at four corners of the vertical elevation of the square upright post unit, and the corner plates are made of 5mm thick steel plates.
4. The turnover adjustable climbing form or climbing frame auxiliary support according to claim 1, wherein the inner support at the top of the square units and the inner support at the bottom are positioned in different vertical planes, and two adjacent square units are connected in a mirror image mode up and down.
5. The turnover adjustable climbing form or climbing frame auxiliary support according to claim 1, wherein the square units are 400mm long, 300mm wide and 600mm high, and the cross beams and the upright posts are made of 5# channel steel.
6. An epicyclic adjustable climbing formwork or climbing frame auxiliary support according to claim 1, wherein the inclined angle between the diagonal strut and the floor slab is 45 ° to 65 °.
7. The turnover adjustable climbing form or climbing frame auxiliary support according to claim 1, wherein the diagonal brace comprises an adjustable rod and a fixed rod, the fixed rod is located at two ends of the diagonal brace, the adjustable rod is located in the middle of the diagonal brace, the adjustable rod comprises a sleeve, a screw rod and a nut, the nut is welded in the sleeve, the screw rod is screwed into the sleeve from two ends and is in threaded connection with the nut, and the sleeve is rotated to adjust the overall length of the adjustable rod.
8. The turnover adjustable climbing form or climbing frame auxiliary support according to claim 7, wherein the fixed rod is a phi 48 x 3.6 steel pipe, the sleeve is a phi 60 x 3.6 steel pipe, the screw is M30 in specification and M30 in nut specification, the length of the screw is not less than 500mm, the whole adjusting length of the adjustable rod is 1.1M-1.8M, and a phi 6 observation hole is formed in the sleeve.
9. The turnover adjustable climbing form or climbing frame auxiliary support according to claim 1, wherein the end parts of the two ends of the diagonal brace and the outer side of the cross beam of the square unit are welded with lug plates, the lug plates are arranged on the floor slab through expansion bolts, and the two ends of the diagonal brace are respectively connected with the lattice column and the floor slab through the lug plates and the bolts.
10. A construction method, characterized in that the construction is carried out by adopting the turnover adjustable climbing formwork or the climbing frame auxiliary support according to any one of claims 1-9, and the specific steps comprise:
s1, determining the height of the lattice column
Determining the height of the lattice columns according to the building layer height, the climbing form or the climbing frame attachment position and the vertical distance, dividing the height of the lattice columns by the height of the square units, rounding, and calculating to obtain the number of the square units;
s2, pre-buried lattice column fixing bolt
Determining the position of a lattice column according to a plan view of the climbing formwork or the climbing frame, and embedding lattice column fixing bolts in an auxiliary manner by adopting a steel sleeve, wherein the steel sleeve is two vertical hollow sleeves, the outer wall of the steel sleeve is fixedly connected through a horizontal connecting rod, and the lattice column fixing bolts penetrate through the steel sleeve to be embedded for ensuring consistent spacing;
s3, assembling lattice column
The structural surface of the floor slab is cleaned before assembly, the structural surface strength is ensured to be more than 5Ma, the structural surface is smooth and free of accumulated water, the first square unit is firstly installed during assembly, the first square unit is selected to be vertically arranged or inversely arranged according to the position of a lattice column fixing bolt, the lattice column fixing bolt passes through a lattice column fixing hole and then is locked with a nut, then the second square unit is connected with the first square unit in a mode of being vertically mirrored and is connected with the first square unit through a bolt, the installation of each square unit is completed one by one through pushing in the same way, and the surface of the lug plate of the square unit positioned at the uppermost layer faces the inside of a building;
s4, installing diagonal brace
Pre-installing the diagonal brace after the diagonal brace is adjusted to the maximum length to determine the installation position of the lug plate on the floor slab, after the lug plate is fixed through the embedded bolt, connecting the two ends of the diagonal brace between the floor slab and the lattice column in an inclined mode, ensuring that the angle between the diagonal brace and the floor slab is 45-65 degrees, slowly adjusting the length of the diagonal brace after the installation is completed, and stopping adjusting and locking the length of the diagonal brace at the position where the lattice column is to be inclined inwards but not inclined;
s5, installing and lifting the climbing form or the climbing frame
According to the design requirement of the climbing form or the climbing frame, the climbing form or the climbing frame is attached to the lattice column, and after the structural concrete reaches the lifting strength, tissue lifting is started.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310160299.6A CN116065810A (en) | 2023-02-24 | 2023-02-24 | Turnover adjustable climbing formwork or climbing frame auxiliary support and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310160299.6A CN116065810A (en) | 2023-02-24 | 2023-02-24 | Turnover adjustable climbing formwork or climbing frame auxiliary support and construction method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN116065810A true CN116065810A (en) | 2023-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310160299.6A Pending CN116065810A (en) | 2023-02-24 | 2023-02-24 | Turnover adjustable climbing formwork or climbing frame auxiliary support and construction method thereof |
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| CN (1) | CN116065810A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200410241Y1 (en) * | 2005-12-21 | 2006-03-07 | 주식회사 근하기공 | Gang Form Angle and Hight Adjust Apparatus of Guide Climbing System |
| CN109441087A (en) * | 2018-12-24 | 2019-03-08 | 蒿振侠 | A kind of cantilever builder's jack being attached on structures |
| CN213418434U (en) * | 2020-09-21 | 2021-06-11 | 中国建筑第二工程局有限公司 | Flower basket overhanging scaffold pull rod fixing system |
| CN214696793U (en) * | 2020-11-24 | 2021-11-12 | 中建八局第一建设有限公司 | Climb and shelve superelevation and spring layer extension and adhere to support |
| CN218467052U (en) * | 2022-10-09 | 2023-02-10 | 中天建设集团有限公司 | Auxiliary frame for climbing frame |
-
2023
- 2023-02-24 CN CN202310160299.6A patent/CN116065810A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200410241Y1 (en) * | 2005-12-21 | 2006-03-07 | 주식회사 근하기공 | Gang Form Angle and Hight Adjust Apparatus of Guide Climbing System |
| CN109441087A (en) * | 2018-12-24 | 2019-03-08 | 蒿振侠 | A kind of cantilever builder's jack being attached on structures |
| CN213418434U (en) * | 2020-09-21 | 2021-06-11 | 中国建筑第二工程局有限公司 | Flower basket overhanging scaffold pull rod fixing system |
| CN214696793U (en) * | 2020-11-24 | 2021-11-12 | 中建八局第一建设有限公司 | Climb and shelve superelevation and spring layer extension and adhere to support |
| CN218467052U (en) * | 2022-10-09 | 2023-02-10 | 中天建设集团有限公司 | Auxiliary frame for climbing frame |
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