CN220550830U - Working platform for scissors prefabricated stairs - Google Patents

Abstract

The utility model discloses a working platform for a scissor prefabricated staircase, which is provided with a ladder stand handrail, can provide safety protection and is convenient for workers to go up and down the staircase. The arrangement of the upper platform and the lower platform can fill the holes in the position of the prefabricated part stair, so that workers can walk safely when going up and down the storeys, and potential safety hazards are reduced. The setting between the upper and lower through-hole of first and lower platform is connected with the cat ladder through lower platform, can be with whole cat ladder direct mount on work platform, workman's rethread lower platform supports the cat ladder and walks the cat ladder entry from lower platform, need not to dismantle the cat ladder after again put subaerial at the level, and the operation is simpler and more easy. The setting of landing leg for whole work platform directly places and can accomplish the construction of prefabricated platform on concrete surface, and the structure is simpler and build more conveniently.

Description

Working platform for scissors prefabricated stairs

Technical Field

The utility model relates to the technical field of buildings, in particular to a working platform for scissors prefabricating stairs.

Background

The scissor ladder may also be referred to as a folding stair, a cross stair, or a sleeve ladder. Two stairways which are overlapped and not communicated with each other are arranged in the same stairwell. The most important characteristic is that two stairways are arranged in the same stairwell, a turning is arranged in the middle of the stairwell between the upper layer and the lower layer, and a pair of scissors is arranged between the stairwells of the three layers.

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. When the prefabricated stairway is constructed, the stairway is in hysteresis lifting, so that a working platform for scissors stairway is required to be erected during construction, and workers can conveniently go up and down.

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, the column structure 2 plays a role of horizontal support by placing all the supporting legs of all the columns on the steps of the scissor ladder, and the supporting structure is complex. And the wooden templates are paved on a plurality of steps, so that the abrasion of a concrete structure caused by the operation process is reduced, meanwhile, the balance among supporting legs of each pipe column is ensured, and the practical operation is complex. In addition, because its cat ladder is the detachable cat ladder, is put on level ground when using, and need receive back after finishing using, and is more time-consuming, is unfavorable for improving the efficiency of construction.

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 scissors prefabricated staircase.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

a working platform for scissors prefabrication stairs comprises a frame 1, a cat ladder 2 and a cat ladder handrail 3; an upper platform 4 is arranged at the top of the frame 1, a lower platform 5 is arranged at the bottom of the frame, and a first upper and lower through hole 41 is formed in the upper platform 4; the cat ladder 2 is connected between the first upper and lower through holes 41 and the lower platform 5, the cat ladder handrail 3 is connected to the side edge of the cat ladder 2, and the left and right ends of the bottom of the frame 1 are connected with the supporting legs 6 extending in the horizontal direction and used for being erected on the concrete surface.

Preferably, the frame 1 is formed by connecting a vertical rod 101, a longitudinal rod 102, a first cross rod 103, a second cross rod 104 and an iron plate; the bottom of the vertical rod 101 is connected to the first cross rod 103, the top of the vertical rod 101 is connected to the second cross rod 104, the vertical rods 102 are connected between the two first cross rods 103 and between the two second cross rods 104, the upper platform 4 is formed by connecting one or more iron plates connected to the second cross rod 104, and the lower platform 5 is formed by connecting one or more iron plates connected to the first cross rod 103.

Preferably, a plurality of longitudinal bars 102 are arranged between the two vertical bars 101, between the two first transverse bars 103 and between the two second transverse bars 104 on the same side, and the second transverse bars 104 are provided with first connecting holes 1041 used for connecting with the ladder 2 at the positions of the first upper and lower through holes 41.

Preferably, the ladder 2 is composed of ladder beams 201 and footrests 202 connected between the ladder beams 201; the ladder beam 201 is formed by connecting a square tube 2011 extending obliquely and connecting pieces 2012 connected to two ends of the square tube 2011; the square tube 2011 is provided with a second connecting hole 20110 for connecting with the ladder handrail 3, and the connecting piece 2012 is provided with a third connecting hole 20120 for connecting with the frame 1.

Preferably, the connecting piece 2012 is provided with an inclined extending portion 20121 in fit connection with the square tube 2011, a straight extending portion 20122 with the bottom flush and convenient for being horizontally placed on the lower platform 5 or convenient for being fit connection with the frame 1, and the straight extending portion 20122 is provided with the third connecting hole 20120.

Preferably, the supporting leg 6 is a telescopic supporting leg, and the supporting leg 6 penetrates into the first cross bar 103 to be connected with the frame 1; the leg 6 is provided with a lateral extension 61 extending in the left-right direction and penetrating into the first cross bar 103, and a longitudinal extension 62 extending in the front-rear direction and connected to the lateral extension 61, and the lateral extension 61 and the longitudinal extension 62 form a leg 6 having a T-shaped structure.

Preferably, the frame 1 is provided with a hanging ring 7 which is convenient for hanging.

Preferably, a transition platform 8 is further connected between the upper platform 4 and the lower platform 5 of the frame 1, and the transition platform 8 is provided with a second upper and lower through opening 81 capable of avoiding the crawling ladder 2.

Preferably, the bottom left end/bottom right end/bottom left and right ends of the frame 1 are hinged with movable turning plates 9, and the movable turning plates 9 are connected between the prefabricated concrete surface and the lower platform 5 when turned down.

Preferably, one or more transition platforms 8 are arranged between the top-most upper platform 4 and the lower platform 5, and one upper platform 4 is arranged between the two transition platforms 8.

Compared with the prior art, the utility model has the beneficial effects that:

1. the cat ladder handrail set up of this case can provide safety protection, the workman of being convenient for goes up and down stairs. The arrangement of the upper platform and the lower platform can fill the holes in the position of the prefabricated part stair, so that workers can walk safely when going up and down the storeys, and potential safety hazards are reduced. The setting between the upper and lower through-hole of first and lower platform is connected with the cat ladder through lower platform, can be with whole cat ladder direct mount on work platform, workman's rethread lower platform supports the cat ladder and walks the cat ladder entry from lower platform, need not to dismantle the cat ladder after again put subaerial at the level, and the operation is simpler and more easy. The setting of landing leg for whole work platform directly places can accomplish the construction of prefabricated platform on concrete surface, need not to lay the plank sheathing on different steps and compare with vertical tubular column and keep balance and stability simpler.

2. The straight extension part of the connecting sheet of the cat ladder is arranged, so that the cat ladder can be conveniently connected with the frame when being arranged at the upper end of the square tube; on the other hand so that when installing in side's pipe lower extreme position, can laminate with lower platform level, increase with the area of contact of lower platform for the cat ladder is more firm, further guarantees constructor's safety, also can link up with the bottom frame cooperation simultaneously.

3. The landing leg is the setting of scalable landing leg to adjust landing leg length according to actual conditions, the flexibility is good, has improved work platform installation and the efficiency of dismantling moreover greatly. The landing leg is the setting of T style of calligraphy structure, can increase the area of contact with concrete surface when saving landing leg cost of manufacture, improves the supporting stability. The oblique extension part of the connecting sheet is arranged so as to be convenient to be connected with the square tube.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of the present disclosure.

Fig. 2 is a schematic structural view of a ladder and a ladder rail hidden in this embodiment.

Fig. 3 is a schematic structural view of the ladder.

Fig. 4 is a schematic structural view of the connecting piece.

Fig. 5 is a schematic structural diagram of a second embodiment of the present disclosure.

Fig. 6 is a schematic structural diagram of a third embodiment of the present disclosure.

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:

example 1

As shown in fig. 1 to 4, a working platform for a scissors prefabricated staircase comprises a frame 1, a cat ladder 2 and a cat ladder handrail 3; an upper platform 4 is arranged at the top of the frame 1, a lower platform 5 is arranged at the bottom of the frame, and a first upper and lower through hole 41 is formed in the upper platform 4; the upper end of the cat ladder 2 is connected to the frame 1 close to the first upper and lower through holes 41, and the lower end of the cat ladder 2 is connected to the lower platform 5 or the bottom frame 1. The ladder stand handrail 3 is connected to the side of the ladder stand 2, and the left and right ends of the bottom of the frame 1 are connected with support legs 6 extending in the horizontal direction and used for being erected on the concrete surface. The first upper and lower through openings 41 facilitate the constructors to enter the upper platform 4 from the ladder stand 2.

As described above, the arrangement of the ladder stand handrail 3 in this case can provide safety protection, so that workers can go up and down stairs conveniently. The arrangement of the upper platform 4 and the lower platform 5 can fill the holes in the position of the prefabricated part stairs, so that workers can walk safely when going up and down floors, and potential safety hazards are reduced. The setting between the first upper and lower through port 41 and the lower platform 5 is connected with the cat ladder 2 through the lower platform 5, the whole cat ladder 2 can be directly installed on the working platform, the worker can support the cat ladder 2 through the lower platform 5 and walk to the entrance of the cat ladder 2 from the lower platform 5, the cat ladder 2 is not required to be detached, and then the cat ladder is placed on the horizontal ground, so that the operation is simpler. The setting of landing leg 6 for whole work platform directly places can accomplish the construction of prefabricated platform on concrete surface, need not to lay the plank sheathing on different steps, keeps balanced and stable simpler moreover with vertical tubular column.

As shown in fig. 2, the frame 1 is formed by welding a vertical rod 101, a longitudinal rod 102, a first transverse rod 103, a second transverse rod 104 and an iron plate; the frame 1 is provided with four vertical rods 101, two front-back parallel first transverse rods 103 and two front-back parallel second transverse rods 104; each upright rod 101 is welded between a first cross rod 103 and a second cross rod 104 which are positioned on the same side, the bottom of each upright rod 101 is connected to the first cross rod 103, the top of each upright rod 101 is connected to the second cross rod 104, and each longitudinal rod 102 is connected between the two first cross rods 103 and the two second cross rods 104 so as to form a stable frame structure, so that the stability of the working platform is improved. The upper platform 4 is welded by one or more iron plates connected to the second cross bar 104, and the lower platform 5 is welded by one or more iron plates welded to the first cross bar 103. Therefore, the iron plate is more stable relative to the wood plate, and the safety of constructors is ensured. In particular, the length of the first cross bar 103 is longer than that of the second cross bar 104, so as to form a trapezoidal frame structure, which is more stable than a rectangle, and at the same time, so as to allow the legs 6 to penetrate therein.

As shown in fig. 2, a plurality of longitudinal bars 102 are arranged between two vertical bars 101, between two first transverse bars 103 and between two second transverse bars 104 on the same side, so as to increase the stability of the frame 1. The second cross bar 104 is provided with a first connecting hole 1041 at the position of the first upper and lower through hole 41 for connecting with the ladder 2, so that the ladder 2 is fixed on the frame 1 by bolts.

As shown in fig. 3, the ladder 2 is composed of a ladder beam 201 and a plurality of footrests 202; the ladder beam 201 is formed by connecting a square tube 2011 extending obliquely and connecting pieces 2012 connected to two ends of the square tube 2011, wherein the connecting pieces 2012 can be iron pieces; the square tube 2011 is provided with a second connecting hole 20110 for connecting with the ladder handrail 3, and the connecting piece 2012 is provided with a third connecting hole 20120 for connecting with the frame 1. In this way, the square tube 2011 and the second connecting hole 20110 thereof are arranged so as to facilitate the installation of the ladder handrail 3, and the installation is simple. The ladder 2 is conveniently connected to the frame 1 through bolts by the connection piece 2012 and the third connection hole 20120 thereof, and the connection structure is simple.

As shown in fig. 4, in the embodiment, the connecting piece 2012 is provided with an oblique extending portion 20121 cooperatively connected with the square tube 2011, and a flat extending portion 20122 with a flat bottom, which is convenient to be horizontally placed on the lower platform 5 or cooperatively connected with the frame 1, and the flat extending portion 20122 is provided with the third connecting hole 20120.

As mentioned above, the straight extension 20122 of the connecting piece 2012 is provided to be engaged with the frame 1 when installed at the upper end position of the square tube 2011; on the other hand so that when installing in side pipe 2011 lower extreme position, can laminate with lower platform 5 level, increase with lower platform 5's area of contact for cat ladder 2 is more firm, further guarantees constructor's safety, also can engage with bottom frame 1 cooperation simultaneously.

As shown in fig. 2, the support leg 6 is a telescopic support leg, and the support leg 6 penetrates into the first cross bar 103 to be connected with the frame 1. The leg 6 is provided with a lateral extension 61 extending in the left-right direction and penetrating into the first cross bar 103, and a longitudinal extension 62 extending in the front-rear direction and connected to the lateral extension 61, and the lateral extension 61 and the longitudinal extension 62 form a leg 6 having a T-shaped structure. The supporting legs 6 can be locked when extending out and can be erected on the concrete surface to play a supporting role. When lifting is required, the relative distance between the support leg 6 and the first cross bar 103 can be adjusted, so that lifting can be realized.

As described above, the support legs 6 are telescopic support legs, so that the length of the support legs 6 can be conveniently adjusted according to actual conditions, the flexibility is good, and the installation and disassembly efficiency of the working platform is greatly improved. The landing leg 6 is in the T-shaped structure, so that the contact area with the concrete surface can be increased while the manufacturing cost of the landing leg 6 is saved, and the supporting stability is improved. The oblique extension 20121 of the connecting piece 2012 is arranged to be convenient for being connected with the square tube 2011.

Example two

As shown in fig. 5, in the second embodiment, compared with the first embodiment, the frame 1 is provided with a hanging ring 7 which is convenient for hanging. Thus, the installation of the working platform is convenient.

As shown in fig. 5, the frame 1 is further connected with a transition platform 8 between the upper platform 4 and the lower platform 5, and the transition platform 8 is provided with a second upper and lower through opening 81 capable of avoiding the ladder stand 2. So, can also play the guard action in the unsettled position in the middle of cat ladder 2, improve the security.

As shown in fig. 5, in the implementation, a movable turning plate 9 is hinged on a vertical rod 102 which is positioned at the same horizontal plane as the lower platform 5 and is positioned at the leftmost/rightmost position, and the movable turning plate 9 is connected between the prefabricated concrete surface and the lower platform 5 when being turned down, so as to form a walk for a constructor to walk. So, can be when work platform is not enough long so that still leave the gap between work platform and the concrete surface, shelter from above-mentioned gap through movable board 9, ensure that constructor can not step on the sky, further guarantee constructor's safety.

Example III

As shown in fig. 6, the third embodiment is an embodiment in which a working platform composed of a plurality of upper platforms 4, a plurality of transition platforms 8 and a lower platform 5 is built together and is built on the surface of a stair tread/concrete. The difference between the third embodiment and the second embodiment is that one or more transition platforms 8 are arranged between the upper platform 4 and the lower platform 5 at the top, and an upper platform 4 is arranged between the two transition platforms 8. Therefore, the scissors are applicable to scissors prefabricated stairs with different heights.

As described above, the scheme protects the working platform for the scissors 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 (10)

1. The working platform for the scissors prefabricated staircase is characterized by comprising a frame (1), a cat ladder (2) and a cat ladder handrail (3); an upper platform (4) is arranged at the top of the frame (1), a lower platform (5) is arranged at the bottom of the frame, and a first upper through hole (41) and a first lower through hole are formed in the upper platform (4); the cat ladder is characterized in that the cat ladder (2) is connected between the first upper and lower through holes (41) and the lower platform (5), the cat ladder handrail (3) is connected to the side edge of the cat ladder (2), and the left and right ends of the bottom of the frame (1) are connected with supporting legs (6) extending in the horizontal direction and used for being erected on the surface of concrete.

2. The working platform for scissors prefabricated stairway according to claim 1, wherein the frame (1) is formed by connecting a vertical rod (101), a longitudinal rod (102), a first cross rod (103), a second cross rod (104) and an iron plate; the bottom of pole setting (101) is connected on first horizontal pole (103), the top is connected on second horizontal pole (104), all is connected with between two first horizontal poles (103), between two second horizontal poles (104) vertical pole (102), upper platform (4) are formed by connecting one or more iron plates on second horizontal pole (104), lower platform (5) are formed by connecting one or more iron plates on first horizontal pole (103).

3. The working platform for scissors prefabrication stairs according to claim 2, characterized in that a plurality of longitudinal bars (102) are arranged between two vertical bars (101), between two first transverse bars (103) and between two second transverse bars (104) on the same side, and a first connecting hole (1041) for connecting with a cat ladder (2) is formed in the position of a first upper through hole (41) and a first lower through hole (41) of the second transverse bars (104).

4. A scissor prefabricated stairway work platform according to claim 1, characterised in that the ladder (2) consists of ladder beams (201) and tread plates (202) connected between the ladder beams (201); the ladder beam (201) is formed by connecting a square tube (2011) extending obliquely and connecting pieces (2012) connected to two ends of the square tube (2011); the square tube (2011) is provided with a second connecting hole (20110) used for being connected with the ladder stand handrail (3), and the connecting piece (2012) is provided with a third connecting hole (20120) used for being connected with the frame (1).

5. The working platform for scissors prefabricated stairway according to claim 4, characterized in that the connecting piece (2012) is provided with an inclined extension part (20121) which is matched and connected with the square pipe (2011), a straight extension part (20122) which is flush at the bottom and is convenient to be horizontally placed on the lower platform (5) or matched and connected with the frame (1), and the straight extension part (20122) is provided with the third connecting hole (20120).

6. A scissor prefabricated stairway work platform according to claim 2, characterised in that the legs (6) are telescopic legs, the legs (6) penetrating into the first cross bar (103) and being connected to the frame (1); the support leg (6) is provided with a transverse extension part (61) which extends along the left-right direction and can penetrate into the first cross bar (103), a longitudinal extension part (62) which is connected with the transverse extension part (61) and extends along the front-back direction, and the transverse extension part (61) and the longitudinal extension part (62) form the support leg (6) with a T-shaped structure.

7. A scissor prefabricated stairway work platform according to claim 1, characterised in that the frame (1) is provided with a lifting ring (7) for facilitating lifting.

8. The working platform for the scissors prefabricated staircase according to claim 1, characterized in that the frame (1) is further connected with a transition platform (8) between the upper platform (4) and the lower platform (5), and the transition platform (8) is provided with a second upper and lower through opening (81) capable of avoiding the ladder (2).

9. A scissor prefabricated stairway work platform according to claim 1, characterised in that the bottom left/right/bottom left/right ends of the frame (1) are hinged with movable flaps (9), the movable flaps (9) being engaged between the prefabricated concrete surface and the lower platform (5) when turned down.

10. A scissor stair work platform according to any of claims 1 to 9, characterized in that one or more transition platforms (8) are arranged between the topmost upper platform (4) and the lower platform (5), and an upper platform (4) is arranged between the two transition platforms (8).