CN209907886U - An adjustable prefabricated stair construction platform - Google Patents

Abstract

The utility model discloses an adjustable assembled stair construction platform, comprising a platform frame, one end of the platform frame can be arranged on a floor slab, and the other end is provided with at least two support frames; the support frames comprise an upper frame arranged below the platform frame A bracket, a lower bracket sleeved on the upper bracket, and a lifting adjustment device, the lower bracket can be supported on the rest platform plate, and the lifting adjustment device is used to adjust the relative distance between the upper bracket and the lower bracket; the platform frame is also provided with abutting shears The support device of the force wall. Compared with the traditional operation platform for erecting steel pipes, the adjustable assembled stair construction platform provided by the utility model has stronger site adaptability, and can be hoisted to the work site. On the platform plate, the supporting device is pressed against the shear walls on both sides, the construction platform is easy to disassemble and assemble, the recycling rate is high, the construction period is shortened and the construction difficulty is reduced, and the economic benefit is good.

Description

An adjustable prefabricated stair construction platform

technical field

The utility model relates to the technical field of building construction equipment, in particular to an adjustable assembled stair construction platform.

Background technique

Urban development planning tends to be large-scale and specialized, and the number of prefabricated buildings is increasing. The stair construction in prefabricated buildings is greatly affected by the site during the construction period. Especially for projects with complex structures that require formwork for the core tube of the stairs, the construction process is often affected by the fact that the stairs are partially hollow, there is no solid operating surface, and the floor height is too high.

In order to facilitate the hoisting and construction of the stairs, facilitate the lifting and positioning of the wall panels around the stairwell, and facilitate the workers to install and remove the wall formwork when the stairwell wall needs formwork, a temporary operating frame is usually set up with steel pipes in the stairwell. As a temporary construction platform, it is convenient for workers to construct. This approach has the following disadvantages:

For the temporary steel pipe construction platform, although it can provide a construction platform and play a certain protective effect, it is difficult to set up, the construction period is long, and in the prefabricated construction process, the already erected construction platform needs to be dismantled, resulting in cumbersome construction. Delay in construction.

Utility model content

In order to overcome at least one of the above-mentioned defects in the prior art, the present invention provides an adjustable assembled stair construction platform.

The technical scheme adopted by the present utility model for solving its problems is:

An adjustable assembled stair construction platform, one end of the platform frame can be set on the floor slab, and the other end is provided with at least two support frames; The lower bracket and the lifting adjustment device are arranged on the upper bracket, the lower bracket can be supported on the rest platform plate, and the lifting adjustment device is used to adjust the relative distance between the upper bracket and the lower bracket; There is also a supporting device for abutting against the shear wall.

Compared with the traditional operation platform for erecting steel pipes, the adjustable assembled stair construction platform provided by the utility model has stronger site adaptability, and can be hoisted to the work site. On the platform plate, the supporting devices are pressed against the shear walls on both sides. The construction platform is easy to disassemble and assemble, has high recycling rate, shortens the construction period and reduces the construction difficulty, and has good economic benefits.

Further, the lifting adjustment device includes a vertical screw, an upper screw sleeve arranged on the upper support, and a lower screw sleeve arranged on the lower support; the vertical screw is a bidirectional screw, and is connected with the upper support. The upper screw sleeve and the lower screw sleeve are threadedly matched.

Therefore, through the setting of the lifting adjustment device, the worker can adjust the height of the support frame by rotating the vertical screw, so as to adapt to the work site with different height differences.

Further, the vertical screw rod is also provided with a first through hole perpendicular to its length direction.

Therefore, the worker can insert the adjusting rod into the first through hole to rotate the vertical screw, which is more labor-saving and convenient by using the lever principle.

Further, the opposing support device includes a horizontally arranged opposing support ejector rod and an ejector rod seat provided on the platform frame, the opposing support ejector rod is threadedly matched with the ejector rod seat, and one end of the opposing support ejector rod is threaded. There are pallets for abutting the shear walls.

In this way, the workers can make the supporting plate abut against the shear wall by rotating the counter-supporting mandrel, so as to strengthen the overall rigidity of the construction platform and prevent the construction platform from becoming unstable.

Further, the upper bracket is detachably connected to the platform frame.

Further, the platform frame includes two main beams arranged in parallel and a plurality of secondary beams that are detachably connected to the two main beams.

Further, detachable reinforcing purlins are arranged between the adjacent secondary beams.

As a result, the parts can be disassembled and assembled, so as to store and replace the parts, and can also better adapt to various venues; at the same time, the reinforcement of the purlin can avoid excessive deformation of the secondary beam.

Further, a connecting device is further provided on the platform frame, and the connecting device divides the platform frame into a first frame and a second frame along the length direction of the main beam.

Further, the connecting device includes a horizontal screw, a first screw sleeve arranged on the first frame, and a second screw sleeve arranged on the second frame; the horizontal screw is a bidirectional screw, and It is threaded with the first screw sleeve and the second screw sleeve.

Therefore, through the setting of the connecting device, when replacing construction platforms with different length specifications, the worker can lock the first frame and the second frame by rotating the horizontal screw.

Further, the horizontal screw is also provided with a second through hole perpendicular to its length direction.

Therefore, the worker can insert the adjusting rod into the second through hole to rotate the horizontal screw, which is more labor-saving and convenient by using the lever principle.

To sum up, the adjustable assembled stair construction platform provided by the present utility model has the following technical effects:

1) Through the detachable design of each component, a complete construction platform is formed by combined installation in the form of assembly, which realizes the specialization and standardization of the construction platform, and is convenient for storage, transportation and on-site installation, and is also conducive to maintenance during use. It is labor-saving, labor-saving, time-saving, and can be recycled, shortening the construction period and reducing the difficulty of construction;

2) Through the setting of the lifting adjustment device and the connecting device, the workers can flexibly adjust and combine the construction platform by rotating the vertical screw and the horizontal screw according to the site conditions, which has low requirements on the site conditions and plays a good role in the complex construction process;

3) Through the setting of the support device, the worker can rotate the support rod to make the support plate abut against the shear wall, strengthen the overall rigidity of the construction platform, and prevent the construction platform from becoming unstable.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment;

Fig. 2 is the installation schematic diagram of the embodiment of the utility model;

Fig. 3 is the top view of Fig. 1;

Fig. 4 is the connection schematic diagram of the secondary beam and the reinforcement purlin in Fig. 3;

FIG. 5 is an enlarged schematic diagram of part A of FIG. 1 .

Among them, the meanings of the reference signs are as follows:

1. Platform frame; 11. Main beam; 111. First reinforcing rib plate; 12. Secondary beam; 121. First connecting plate; 122. Second reinforcing rib plate; 13. Strengthening purlin; 14, connecting device; 141, horizontal screw; 142, first screw sleeve; 143, second screw sleeve; 1411, second through hole; 1A, first frame; 1B, second frame; 2, support frame; 21, upper bracket; 211, support plate; 22, lower bracket; 23, lifting adjustment device; 231, vertical screw; 232, upper screw sleeve; 233, lower screw sleeve; 2311, first through hole; 3, Supporting device; 31. Supporting mandrel; 32. Mandrel seat; 33. Support plate; 4. Floor plate; 5. Rest platform plate.

Detailed ways

For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which the present invention belongs. The terms used in the description of the present invention herein are only for the purpose of describing specific embodiments, and are not intended to limit the present invention.

Referring to FIGS. 1 to 5 , the present utility model discloses an adjustable assembly-type stair construction platform, which can be applied to the construction of stairwells. For complex structure stairs and foundation pit stages that require temporary water retention The construction process has a good effect.

The construction platform includes a platform frame 1, one end of the platform frame 1 can be set on the floor slab 4, and the other end is provided with two support frames 2; The lower bracket 22 of 21 and the lifting adjustment device 23, the lifting adjustment device 23 is used to adjust the height of the support frame 2, thereby realizing the height position adjustment of the platform frame; Support device 3.

Specifically, the platform frame 1 is in the shape of a rectangle, which can be placed on the floor plate 4 to form surface contact, and is restrained by the steel bars 41 reserved on the floor plate 4. It is true that a backing plate can also be laid on the platform frame 1, In order to facilitate the workers to work on it; in order to facilitate the production and maintenance of materials on the construction site, the upper bracket 21 is made of 50mm*4mm square steel pipe, and the lower bracket 22 is made of 70mm*5mm square steel pipe, so that the lower bracket 22 can be It is sleeved on the outside of the upper bracket 21 so that the upper bracket 21 slides up and down relative to the lower bracket 22 ; a base 221 is welded below the lower bracket 22 , and the base 221 can be fixedly connected to the rest platform 5 by bolts.

Referring to FIG. 1 , the lift adjusting device 23 includes a vertical screw 231 , an upper screw sleeve 232 and a lower screw sleeve 233 . The upper screw sleeve 232 and the lower screw sleeve 233 are respectively welded or bolted to the upper bracket 21 and the lower bracket 22; the vertical screw 231 is a bidirectional screw, and the upper screw sleeve 232 and the lower screw sleeve 233 are respectively provided with There is an inner thread matched with the vertical screw 231, and the two ends of the vertical screw 231 respectively pass through the upper screw sleeve 232 and the lower screw sleeve 233, thereby connecting the upper bracket 21 and the lower bracket 22 together; the vertical screw The middle part of 231 is also provided with a first through hole 2311 perpendicular to its length direction. During the operation, the worker can insert the adjusting rod into the first through hole 2311 to rotate the vertical screw 231 to adjust the distance between the upper bracket 21 and the lower bracket 22, and then adjust the height of the support frame 2 to adapt to the operation of different height differences. site.

Referring to FIGS. 1 and 3 , there are 8 counter-supporting devices 3 symmetrically arranged on both sides of the platform frame 1, and the counter-supporting devices 3 include horizontally arranged counter-supporting mandrels 31 and a mandrel seat welded or bolted on the platform frame 1 32. A support plate 33 is welded to the end of the support mandrel 31 close to the shear wall; the mandrel seat 32 is provided with an internal thread, and the support mandrel 31 is provided with an external thread matched with the internal thread of the mandrel seat 32 Therefore, the worker can adjust the distance between the support plate 33 and the push rod base 32 by rotating the support rod 31, and make the support plate 33 abut on the shear wall, thereby symmetrically supporting the shear wall in order to fix the construction platform.

In order to facilitate the disassembly and arrangement of the construction platform, in this embodiment, a support plate 211 is welded above the upper bracket 21, and the platform frame 1 and the support plate 211 are fixedly connected by bolts, so as to realize the connection between the upper bracket 21 and the platform frame 1. Detachable connection. It is true that the connection method between the upper bracket 21 and the support plate 211 can also be glue bonding or bolt connection, etc., and the connection method between the platform frame 1 and the support plate 211 can also be welding or glue bonding. The combination of the connection manner of the bracket 21 and the platform frame 1 is sufficient as long as the upper bracket 21 and the platform frame 1 can be detached.

In this embodiment, the platform frame 1 includes two main beams 11 arranged in parallel and six secondary beams 12 that are detachably connected to the two main beams 11 , and detachable detachable beams 12 are also provided between the two adjacent secondary beams 12 . Reinforced purlins 13.

Referring to Fig. 3, Fig. 4 and Fig. 5, specifically, also in order to facilitate the construction and maintenance of the construction site, the main beam 11 and the secondary beam 12 are made of No. 18 channel steel, and the reinforcing purlin 13 is made of No. 12 channel steel, wherein , the main beam 11 and the secondary beam 12 are arranged vertically, and the secondary beam 12 and the reinforcing purlin 13 are arranged vertically. The support plate 211 and the main beam 11 are fixedly connected by bolts; both ends of the secondary beam 12 are provided with a first connecting plate 121, and the first reinforcing rib 111 corresponding to the first connecting plate 121 is welded on the main beam 11. The connecting plate 112 connects the secondary beam 12 and the first reinforcing rib plate 111 together by bolts; a second connecting plate 131 is provided on both ends of the reinforcing purlin 13, and the middle side of the secondary beam 12 is welded with a corresponding second connecting plate 131. The second reinforcing rib 122 and the second connecting plate 131 connect the reinforcing purlin 13 and the second reinforcing rib 122 together by bolts. Indeed, the four secondary beams 12 located in the middle of the platform frame 1 will have a second reinforcing rib 122 welded on both sides thereof.

In this embodiment, connecting devices 14 are symmetrically arranged on both sides of the platform frame 1 in the width direction. The connecting devices 14 divide the platform frame 1 into a first frame 1A and a second frame 1B along the length direction of the main beam 11 . Specifically, the two main beams 11 are disconnected at the positions corresponding to the connecting devices 14, and then the reinforcing purlins 13 in the middle are removed to form the first frame 1A and the second frame 1B.

Referring to FIG. 3 , the connecting device 14 includes a horizontal screw 141 , a first screw sleeve 142 and a second screw sleeve 143 . The first screw sleeve 142 and the second screw sleeve 143 are welded or bolted to the first frame 1A and the second frame 1B respectively; the horizontal screw 141 is a bidirectional screw, the first screw sleeve 142 and the second screw sleeve The barrel 143 is respectively provided with an inner thread which is matched with the horizontal screw 141, and the two ends of the horizontal screw 141 respectively pass through the first screw sleeve 142 and the second screw sleeve 143, thereby connecting the first frame 1A and the second frame 1B. Connected together; the middle of the horizontal screw 141 is also provided with a second through hole 1411 perpendicular to its length direction. During operation, a worker can insert an adjusting rod into the second through hole 1411 to rotate the horizontal screw 141 to fix the first frame 1A and the second frame 1B, thereby forming an integral platform frame 1 .

Therefore, when the length of the construction platform needs to be adjusted in a large size, the second frame 1B can be replaced, and another second frame 1B and the existing first frame 1A can be installed and combined to form a new construction platform, and multiple sets of integral parts are not necessary. The construction platform can reduce the engineering cost.

To sum up, the adjustable assembled stair construction platform provided by the utility model is assembled and installed in an assembly form, which realizes the specialization and standardization of the construction platform, and is convenient for storage, transportation and on-site installation, and is also conducive to use. Maintenance in the process saves labor, effort and time, and can be recycled, shortening the construction period and reducing the difficulty of construction; it can also flexibly adjust and combine construction platforms according to site conditions to adapt to construction sites of different specifications and conditions; The connection or abutment constraints of the slab, the rest platform slab and the shear wall form an overall support system, and the construction platform is more stable.

The technical means disclosed by the solution of the present invention are not limited to the technical means disclosed in the above-mentioned embodiments, but also include technical solutions composed of any combination of the above-mentioned technical features. It should be pointed out that for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications are also regarded as the protection scope of the present invention.

Claims (10)

1. An adjustable assembled stair construction platform, comprising a platform frame, characterized in that: one end of the platform frame can be set on the floor plate, and the other end is provided with at least two support frames; The upper bracket under the platform frame, the lower bracket sleeved on the upper bracket, and the lifting adjustment device, the lower bracket can be supported on the rest platform plate, and the lifting adjustment device is used to adjust the upper bracket and the lower bracket. The relative distance of the brackets; the platform frame is also provided with a supporting device for abutting against the shear wall. 2. The adjustable prefabricated stair construction platform according to claim 1, wherein the lifting adjustment device comprises a vertical screw, an upper screw sleeve arranged on the upper bracket, and an upper screw sleeve arranged on the lower The lower screw sleeve on the bracket; the vertical screw is a bidirectional screw, and is threadedly matched with the upper screw sleeve and the lower screw sleeve. 3 . The adjustable assembled stair construction platform according to claim 2 , wherein the vertical screw rod is further provided with a first through hole perpendicular to its length direction. 4 . 4 . The adjustable prefabricated stair construction platform according to claim 1 , wherein the supporting device comprises a horizontally arranged counter-supporting top rod and a top rod seat arranged on the platform frame, and the The counter-supporting top rod is threadedly matched with the top-rod seat, and one end of the counter-supporting top rod is provided with a support plate for abutting against the shear wall. 5 . The adjustable prefabricated stair construction platform according to claim 1 , wherein the upper bracket is detachably connected to the platform frame. 6 . 6 . The adjustable prefabricated stair construction platform according to claim 1 , wherein the platform frame comprises two main beams arranged in parallel and a plurality of secondary beams that are disassembled and connected to the two main beams. 7 . 7 . The adjustable prefabricated stair construction platform according to claim 6 , wherein a detachable reinforcing purlin is arranged between the adjacent secondary beams. 8 . 8. The adjustable prefabricated stair construction platform according to claim 6, characterized in that: the platform frame is further provided with a connecting device, and the connecting device divides the platform frame along the length direction of the main beam. for the first frame and the second frame. 9 . The adjustable prefabricated stair construction platform according to claim 8 , wherein the connecting device comprises a horizontal screw, a first screw sleeve arranged on the first frame, and a first screw sleeve arranged on the first frame. 10 . The second screw sleeve on the two frames; the horizontal screw is a bidirectional screw and is threadedly matched with the first screw sleeve and the second screw sleeve. 10 . The adjustable prefabricated stair construction platform according to claim 9 , wherein the horizontal screw is further provided with a second through hole perpendicular to its length direction. 11 .

Images