CN220550921U - Working platform for double-running prefabricated stairs - Google Patents
Working platform for double-running prefabricated stairs Download PDFInfo
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- CN220550921U CN220550921U CN202322094822.8U CN202322094822U CN220550921U CN 220550921 U CN220550921 U CN 220550921U CN 202322094822 U CN202322094822 U CN 202322094822U CN 220550921 U CN220550921 U CN 220550921U
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- 241000282326 Felis catus Species 0.000 claims description 18
- 230000009193 crawling Effects 0.000 claims description 11
- 238000009415 formwork Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 9
- 230000009286 beneficial effect Effects 0.000 abstract description 5
- 229910000746 Structural steel Inorganic materials 0.000 description 5
- 235000000396 iron Nutrition 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000011178 precast concrete Substances 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000010006 flight Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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Abstract
The utility model discloses a working platform for double-running prefabricated stairs, which can play a role of facilitating constructors to go up and down stairs through a certain stair platform layer when the double-running stairs are prefabricated through the arrangement of a starting ladder and a top ladder. The arrangement of the first movable plate of the starting ladder and the second movable plate of the top ladder can ensure that the cavity between each working platform and the stair position can be blocked, prevent constructors from stepping empty, and reduce potential safety hazards; on the other hand, the device can be flexibly folded or retracted, does not obstruct lifting, has good flexibility and is beneficial to improving the construction efficiency. The armrests play a role in safety protection.
Description
Technical Field
The utility model relates to the technical field of buildings, in particular to a working platform for double-running prefabricated stairways.
Background
The double-track stair is one form of stair and is the most widely used form. It comprises two parallel and opposite ladder sections and an intermediate rest platform between two floor layers. Designers often make two flights equal in length, saving area.
In recent years, precast concrete has become a new pet in the construction industry with its low cost and excellent performance. The wide variety of styles, weights, and excellent flexural strength and properties have led to their wide application in the fields of roadblocks, reservoirs, exterior walls, construction and decoration. The precast concrete can accelerate the industrialization speed of the house, and is one of the key points of the innovation of the economic system in China. In the construction of a prefabricated staircase, one layer of casting is delayed, so that a working platform for the staircase needs to be erected in the construction.
Chinese patent publication No. CN213979843U discloses a prefabricated stairway safety operation platform of assembled structure, which comprises an operation platform, a column structure, an up-down passage, a ladder stand and a column horizontal connection rod. Its cat ladder is for dismantling the cat ladder, and it is connected with upper and lower access through the round hole on operation platform, and the stabilizer blade is placed on the plane, when safe operation platform need promote, change the position of placing, can demolish the cat ladder, after placing, hangs again and places, and the cat ladder is formed by square pipe preparation, and its both sides are provided with the handrail, ensure constructor safety when passing up and down. However, a cavity may exist between the operation platform and the upper concrete surface, and a constructor may step on the cavity when walking, so that potential safety hazards exist.
Therefore, how to overcome the above-mentioned drawbacks has become an important issue to be solved by the person skilled in the art.
Disclosure of Invention
The utility model overcomes the defects of the technology and provides the working platform for the double-running prefabricated staircase.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides a work platform for double-running prefabricated stairway, includes starting ladder 1 and top step ladder 2 that set up respectively on the floor platform, starting ladder 1 includes first braced frame 11, first cat ladder 12, first fly leaf 13, first cat ladder 12 is installed on first braced frame 11, and first cat ladder 12 is connected with through first braced frame 11 at entrance or with exit can turn over and be used for sheltering from the first fly leaf 13 of cavity; the top step 2 comprises a second supporting frame 21, a second cat ladder 22 and a second movable plate 23, wherein the second cat ladder 22 is arranged on the second supporting frame 21, and the second cat ladder 22 is connected with the second movable plate 23 which can be folded and used for shielding a cavity at an inlet or an outlet through the second supporting frame 21; the first ladder stand 12 is located below the second ladder stand 22, and the first ladder stand 12 is engaged with the second ladder stand 22 through a certain stair level.
Preferably, the first ladder 12 and the second ladder 22 are provided with handrails 3.
Preferably, the first supporting frame 11 is formed by connecting a first upright 101, a first longitudinal bar 102 and a first transverse bar 104; the first vertical rods 102 are connected between the two first vertical rods 101, one end of the first transverse rod 104 is vertically connected with the first vertical rods 101, the top of the first ladder stand 12 is connected with the top of the first vertical rods 101, the bottom of the first ladder stand 12 is connected with the first transverse rod 104, and the first movable plate 13 is hinged between the tops of the two first vertical rods 101.
Preferably, the second supporting frame 21 is formed by connecting a second upright 201, a third upright 202, a second vertical rod 203 and a second cross rod 205; the second vertical rods 203 are connected between the two second vertical rods 201 and between the two third vertical rods 202, one end of the second cross rod 205 is vertically connected with the second vertical rods 201, the other end of the second cross rod 205 is vertically connected with the third vertical rods 202, the top of the second cat ladder 22 is connected with the top of the second vertical rods 201, the bottom of the second cat ladder is connected with the top of the third vertical rods 202, the top of the second vertical rods 201 is higher than the top of the third vertical rods 202, one second movable plate 23 is hinged between the tops of the two second vertical rods 201, and the other second movable plate 23 is hinged between the tops of the two third vertical rods 202.
Preferably, the bottommost parts of the first support frame 11 and the second support frame 21 are connected with the support sheet 4.
Preferably, the second upright 201 is identical in length to the first upright 101 and is arranged side by side.
Preferably, the first cross bar 104 is connected with a telescopic rod 5 with adjustable length near the entrance of the first ladder 12, and the other end of the first cross bar 104 is inserted by the telescopic rod 5.
Preferably, a telescopic plate 6 which can be telescopically folded is connected between the two parallel telescopic rods 5.
Compared with the prior art, the utility model has the beneficial effects that:
1. the scheme can play a role in facilitating constructors to go up and down stairs through a certain stair platform layer when the double-track stairs are prefabricated through the arrangement of the starting ladder and the top step ladder. The arrangement of the first movable plate of the starting ladder and the second movable plate of the top ladder can ensure that the cavity between each working platform and the stair position can be blocked, prevent constructors from stepping empty, and reduce potential safety hazards; on the other hand, the device can be flexibly folded or retracted, does not obstruct lifting, has good flexibility and is beneficial to improving the construction efficiency. The armrests play a role in safety protection.
2. The setting of supporting plate can be used to with ground/stair layer surface contact, enlarges area of contact, further strengthens stability.
3. The setting of telescopic link is convenient for can take on the stair position when outwards stretching out, be convenient for hang when the shrink is in and rise, its flexibility is good, is favorable to improving the efficiency of construction.
The telescopic plate is arranged so as to shield the cavity between the working platform and the stair position, and potential safety hazards are reduced. Simultaneously can stretch out and draw back with the telescopic link cooperation.
Drawings
Fig. 1 is a schematic view of a working platform constructed on a stair tread.
Fig. 2 is a schematic view of the structure of the starting ladder.
Fig. 3 is a schematic structural view of the top step ladder of the present case.
Detailed Description
The following examples are provided to illustrate the features of the present utility model and other related features in further detail to facilitate understanding by those skilled in the art:
as shown in fig. 1 to 3, the working platform for the double-running prefabricated staircase comprises a starting ladder 1 and a top ladder 2 which are respectively erected on a floor platform, wherein the starting ladder 1 comprises a first supporting frame 11, a first crawling ladder 12 extending in an inclined manner and a first movable plate 13; the first ladder stand 12 is obliquely arranged on the first supporting frame 11, one first movable plate 13 is hinged to the inlet of the first ladder stand 12 through the first supporting frame 11, and the other first movable plate 13 is hinged to the outlet of the first ladder stand through the first supporting frame 11. The top step ladder 2 comprises a second supporting frame 21, a second crawling ladder 22 extending obliquely and a second movable plate 23; the second ladder stand 22 is obliquely installed on the second supporting frame 21, and a second movable plate 23 is hinged to the entrance of the second ladder stand 22 through the second supporting frame 21. The first ladder stand 12 is located below the second ladder stand 22 and is connected by a certain stair level, and a constructor can play the second ladder stand 22 from the first ladder stand 12 through the certain stair level. The front and rear sides of the first ladder stand 12 and the second ladder stand 22 are provided with handrails 3.
When the elevator 1 is required to be lifted, the first movable plate 13 is turned upwards; when the top step 2 needs to be lifted, the second movable plate 23 is turned upwards.
As described above, the scheme can play a role of conveniently ascending and descending stairs for constructors through a certain stair platform layer when the double-track stairs are prefabricated through the arrangement of the starting ladder 1 and the top step ladder 2. The arrangement of the first movable plate 13 of the starting ladder 1 and the second movable plate 23 of the top ladder 2 can ensure that the cavity between each working platform and the stair position can be blocked, prevent constructors from stepping empty and reduce potential safety hazards; on the other hand, the device can be flexibly folded or retracted, does not obstruct lifting, has good flexibility and is beneficial to improving the construction efficiency. The arrangement of the armrests 3 plays a role in safety protection.
As shown in fig. 2, in the embodiment, the first supporting frame 11 is formed by connecting two first vertical rods 101 parallel to each other, two first longitudinal rods 102 parallel to each other, a plurality of first connecting angle irons 103, and two first cross rods 104 parallel to each other; the first vertical rods 102 are connected between the two first vertical rods 101 through first connecting angle irons 103, so that the two first vertical rods 101 are arranged in parallel. One end of the first cross bar 104 is vertically connected with the first vertical rod 101 through a first connection angle iron 103, the top of the first cat ladder 12 is connected with the top of the first vertical rod 101, and the bottom of the first cat ladder is connected with the middle of the first cross bar 104, so that a stable triangle structure is formed, the first supporting frame 11 is more stable, and the safety is further improved. The first movable plate 13 is hinged between the tops of the two first uprights 101. In particular, the first longitudinal bar 102 may be provided in plurality to enhance the stability of the first support frame 11. The first upright post 101, the first cross rod 104 and the first longitudinal rod 102 are respectively provided with a first connecting hole 105 which is convenient to connect with the first connecting angle iron 103.
As shown in fig. 3, in the embodiment, the second supporting frame 21 is formed by connecting two second vertical rods 201 parallel to each other, two third vertical rods 202 parallel to each other, four second longitudinal rods 203 parallel to each other, a plurality of second connecting angle irons 204, and two second cross rods 205 parallel to each other; the second vertical rods 203 are connected between the two second vertical rods 201 through second connection angle irons 204 so that the two second vertical rods 201 are kept parallel. One end of the second cross rod 205 is vertically connected with the bottom of the second vertical rod 201 through a second connection angle iron 204, the other end is vertically connected with the middle part of the third vertical rod 202 through the second connection angle iron 204, the top of the second ladder stand 22 is connected with the top of the second vertical rod 201, the bottom is connected with the top of the third vertical rod 202, and the top of the second vertical rod 201 is higher than the top of the third vertical rod 202, so that a stable trapezoid structure is formed, the second support frame 21 is more stable, and the safety is further improved. The second movable plate 23 at the top is hinged between the tops of the two second uprights 201, and the second movable plate 23 at the bottom is hinged between the tops of the two third uprights 202. In particular, the second vertical bars 203 may be provided in plurality to enhance the stability of the second support frame 21. The second upright 201, the third upright 202, the second cross bar 205 and the second vertical bar 203 are respectively provided with a second connecting hole 206 which is convenient to connect with a second connecting angle iron 204; an extension bar 207 for extending the length to enable the second support frame 21 to ride on the stair tread may also be attached to one end of the second rail 205.
As shown in fig. 2 and 3, the support sheet 4 is connected to the bottommost portions of the first support frame 11 and the second support frame 21. In the implementation process, the support plate 4 is used for contacting with the surface of the ground/stair layer, so that the contact area is enlarged, and the stability is further enhanced.
As shown in fig. 1, the second upright 201 is consistent in length with the first upright 101 and is disposed side by side. In this way, the top outlet of the first ladder 12 and the inlet at the bottom of the first ladder 12 are kept parallel, and the bottom of the first supporting frame 11 and the second supporting frame 21 are also kept parallel, so that the first supporting frame 11 and the second supporting frame 21 can share the same stair level, and the installation is more convenient.
As shown in fig. 2, the first cross bar 104 is connected with a telescopic rod 5 with adjustable length at a position close to the entrance of the first ladder 12, the other end of the first cross bar 104 can be inserted into the telescopic rod 5, and the telescopic rod 5 can be a common telescopic rod structure which is clamped when being extended or unclamped when needing to be retracted. In specific implementation, the relative positions of the first cross bar 104 and the telescopic rod 5 can be adjusted so as to facilitate the starting ladder 1 to be placed at a stair position or lifted. The telescopic rod 5 is arranged at the stair position when extending outwards, is convenient to lift when shrinking inwards, has good flexibility and is beneficial to improving the construction efficiency.
As shown in fig. 2, in the implementation, a telescopic folding expansion plate 6 is connected between two parallel expansion rods 5, so as to shade a cavity between the working platform and the stair position, and reduce potential safety hazards. The expansion plate 6 includes metal plates 61 that can be folded together at the time of inward collapsing, thereby shortening the shielding distance so as not to hinder lifting. The plurality of metal plates 61 are spread apart to increase the shielding distance when being stretched outward. The plurality of metal plates 61 are expanded and contracted by the expansion link 5 connected thereto.
As described above, the scheme protects the working platform for the double-running prefabricated staircase, and all technical schemes which are the same as or similar to the scheme are shown to fall into the protection scope of the scheme.
Claims (8)
1. The working platform for the double-running prefabricated stairway is characterized by comprising a starting ladder (1) and a top ladder (2) which are respectively erected on a floor platform, wherein the starting ladder (1) comprises a first supporting frame (11), a first crawling ladder (12) and a first movable plate (13), the first crawling ladder (12) is installed on the first supporting frame (11), and the first crawling ladder (12) is connected with the first movable plate (13) which can be folded at an inlet or an outlet through the first supporting frame (11) and is used for shielding a cavity; the top step ladder (2) comprises a second supporting frame (21), a second cat ladder (22) and a second movable plate (23), wherein the second cat ladder (22) is arranged on the second supporting frame (21), and the second cat ladder (22) is connected with the second movable plate (23) which can be folded and used for shielding a cavity at an inlet or an outlet through the second supporting frame (21); the first crawling ladder (12) is located below the second crawling ladder (22), and the first crawling ladder (12) is connected with the second crawling ladder (22) through a certain stair flat layer.
2. The working platform for double running prefabricated stairway according to claim 1, characterised in that handrails (3) are arranged on the first (12) and second (22) ladders.
3. A dual-running prefabricated stairway work platform according to claim 1, characterised in that the first support frame (11) is formed by connecting a first upright (101), a first longitudinal bar (102) and a first cross bar (104); the first vertical rods (102) are connected between two first vertical rods (101), one end of each first transverse rod (104) is vertically connected with each first vertical rod (101), the top of each first crawling ladder (12) is connected with the top of each first vertical rod (101), the bottom of each first crawling ladder is connected with each first transverse rod (104), and each first movable plate (13) is hinged between the tops of the two first vertical rods (101).
4. A double running pre-fabricated stairway work platform according to claim 1 or 3, characterised in that the second support frame (21) is formed by connecting a second upright (201), a third upright (202), a second longitudinal bar (203), a second cross bar (205); all be connected with between two second pole setting (201), between two third pole setting (202) second vertical pole (203), the one end and the second pole setting (201) of second horizontal pole (205) are connected perpendicularly, the other end is connected perpendicularly with third pole setting (202), second cat ladder (22) top is connected with second pole setting (201) top, bottom and third pole setting (202) top are connected, second pole setting (201) top is higher than the top of third pole setting (202), and one of them second fly leaf (23) articulates between the top of two second pole setting (201), and another second fly leaf (23) articulates between the top of two third pole setting (202).
5. A working platform for double running pre-fabricated stairway according to claim 1, characterised in that the first support frame (11) and the second support frame (21) are connected with support sheets (4) at their bottommost portions.
6. A double running pre-form work platform according to claim 4, characterized in that the second uprights (201) are of uniform length and arranged side by side with the first uprights (101).
7. A dual-run pre-cast stair work platform according to claim 3, characterized in that the first cross bar (104) is connected with a telescopic rod (5) with adjustable length at a position close to the entrance of the first ladder (12), and the other end of the first cross bar (104) is inserted by the telescopic rod (5).
8. A working platform for double running pre-fabricated stairway according to claim 7, characterised in that a telescopic folding expansion plate (6) is connected between two parallel expansion rods (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322094822.8U CN220550921U (en) | 2023-08-03 | 2023-08-03 | Working platform for double-running prefabricated stairs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322094822.8U CN220550921U (en) | 2023-08-03 | 2023-08-03 | Working platform for double-running prefabricated stairs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220550921U true CN220550921U (en) | 2024-03-01 |
Family
ID=90005237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322094822.8U Active CN220550921U (en) | 2023-08-03 | 2023-08-03 | Working platform for double-running prefabricated stairs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220550921U (en) |
-
2023
- 2023-08-03 CN CN202322094822.8U patent/CN220550921U/en active Active
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