CN218881392U - Prefabricated steel plate combined stair - Google Patents

Abstract

The utility model discloses a prefabricated steel plate combined stair, which comprises a first stair and fixing screws, wherein two first side walls are respectively arranged on two sides of the first stair, and one end of the top of the first stair is connected with one end of the bottom of a second stair; two second side walls are respectively arranged on two sides of the second stair, one end of the top of the second stair is connected with one end of the bottom of the third stair, and two third side walls are respectively arranged on two sides of the third stair; the utility model discloses, be provided with first slot, first picture peg, second picture peg and second slot, first slot is the same with the size of second slot, and first picture peg is the same with the size of second picture peg, when assembling, between first lateral wall, second lateral wall and the third lateral wall, after picture peg and the slot interconnect through corresponding, cooperation screw and nut are consolidated and can be accomplished the installation, have improved whole convenience when the dismouting, promote work efficiency.

Description

Prefabricated steel plate combined stair

Technical Field

The utility model particularly relates to a relevant technical field of prefabricated staircase specifically is a prefabricated steel sheet combination stair.

Background

As a member for vertical traffic between floors in a building, used for traffic communication between floors and when a height difference is large, stairways are also provided in multi-stories and high-rise buildings provided with elevators and escalators as main vertical traffic means, the high-rise buildings, although using elevators as main vertical traffic means, still need to keep the stairways for escape in case of fire, prefabricated stairways are one type of stairways, and reference is made to the publication No.: CN214220327U, the disclosed "prefabricated staircase", specifically discloses a prefabricated staircase with lower manufacturing cost. The prefabricated staircase comprises a prefabricated inclined plate, a staircase tread and a staircase platform; at least two stair treads are sequentially arranged on the upper surface of the prefabricated inclined plate along the length direction of the prefabricated inclined plate, and the stair treads are welded and fixed with the first metal embedded parts through second metal embedded parts. The prefabricated inclined plate and the stair tread of the prefabricated stair can be manufactured respectively, when the prefabricated stairs with different lengths are manufactured, only the length of a prefabricated inclined plate die is required to be increased, the requirement on the die is low, stacking and mounting are convenient, and the cost can be greatly reduced; at least two stair treads are sequentially arranged on the upper surface of the prefabricated inclined plate along the length direction of the prefabricated inclined plate, and the stair treads are welded and fixed with the first metal embedded parts through the second metal embedded parts, so that the prefabricated staircase is guaranteed to have good integrity and structural stability, and the connection reliability is high.

And the prefabricated staircase that uses at present usually needs to be customized according to the floor interval before producing, consequently uses the flexibility relatively poor, and what most prefabricated staircase adopted is the concrete material, when aiming at some temporary building, can't reuse after the device is demolishd, consequently has the drawback when using.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a prefabricated steel sheet combination stair to solve the prefabricated stair of the present use that proposes in the above-mentioned background art and generally before production, need customize according to the floor interval, consequently use the flexibility relatively poor, and what most prefabricated stair adopted is the concrete material, when building temporarily to the part, can't reuse after the device is demolishd, consequently there is the problem of drawback when using.

In order to achieve the above object, the utility model provides a following technical scheme:

a prefabricated steel plate combined stair comprises a first stair and fixing screws, wherein two first side walls are arranged on two sides of the first stair respectively, and one end of the top of the first stair is connected with one end of the bottom of a second stair; two second side walls are respectively arranged on two sides of the second stair, one end of the top of the second stair is connected with one end of the bottom of the third stair, and two third side walls are respectively arranged on two sides of the third stair; the middle part of the outer wall of each first side wall is provided with a fixing piece; two fixing pieces are arranged on the outer wall of one of the second side walls, and three fixing pieces are arranged on the outer wall of the other second side wall; the middle parts of the outer walls of the two third side walls are respectively provided with a fixing piece; the bottom of each fixing piece is provided with a supporting rod; the fixed screws are provided with a plurality of screws.

As a further aspect of the present invention: the first side wall comprises a first slot and a first connecting hole; every the both sides of first slot be the symmetry respectively and be equipped with two sets of first connecting holes, and the first connecting hole of every group all is the symmetry and is equipped with two, every first connecting hole all is linked together with the inside of first slot simultaneously.

As a further aspect of the present invention: the second side wall comprises a first inserting plate and a second connecting hole; the both sides of first picture peg be the symmetry respectively and be equipped with two sets of second connecting holes, and every group second connecting hole all is the symmetry and is equipped with two, two sets of second connecting holes communicate each other simultaneously.

As a further aspect of the present invention: the third side wall comprises a second inserting plate, a third connecting hole, a second slot and a fourth connecting hole; two groups of third connecting holes are symmetrically formed in two sides of the second plug board respectively, two groups of third connecting holes are symmetrically formed in each group of third connecting holes, and the two groups of third connecting holes are communicated with each other; the both sides of second slot be the symmetry respectively and be equipped with two sets of fourth connecting holes, and every group fourth connecting hole all is the symmetry and is equipped with two, every fourth connecting hole all is linked together with the inside of second slot simultaneously.

As a further aspect of the present invention: the outer wall of the fixing piece is symmetrically provided with two first through holes, and the top of the fixing piece is provided with a bolt; the bottom of bolt extend to the inside of mounting, and the connected mode of bolt and mounting be sliding connection, two fixed orificess have been seted up respectively to the position that the bolt corresponds first through-hole simultaneously.

As a further aspect of the present invention: the top of the supporting rod is provided with a joint, two groups of second through holes are symmetrically formed in the outer wall of the joint, and two second through holes are symmetrically formed in each group; the bottom of bracing piece be the symmetry formula and seted up two sets of third through holes, and every group third through hole all is the symmetry formula and is equipped with two.

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

1. the utility model discloses, be provided with first stair, first lateral wall, the second stair, the second lateral wall, third stair and third lateral wall, first stair, second stair and third stair and first lateral wall, between second lateral wall and the third lateral wall, all adopt welded connection, and all adopt the steel of the same type to carry out welding process, wherein the second stair is 45 rotatory stair, first stair and third stair are the stair of vertical direction, wholly easily splice, can highly adjust use quantity according to the floor, first stair set up subaerial usually, the second stair is used for turning department, and the third stair can be used to the further extension of height, modular equipment has improved the use flexibility, adopt steel to retrieve recycle simultaneously.

2. The utility model discloses, be provided with first slot, first picture peg, second picture peg and second slot, first slot is the same with the size of second slot, and first picture peg is the same with the size of second picture peg, when assembling, between first lateral wall, second lateral wall and the third lateral wall, through corresponding picture peg and slot interconnect back, cooperation screw and nut are consolidated and can be accomplished the installation, have improved the whole convenience when the dismouting.

3. The utility model discloses, be provided with the mounting, the bracing piece, bolt and fixed screw, when the installation, insert from the bottom of mounting through the joint with the bracing piece top, insert the bolt again from the top of mounting, make the bottom of bolt and the top that connects be connected the back, through the fixed screw to the mounting, connect and be connected between the bolt consolidate can, stop the support to the stair that corresponds through the bracing piece when using, different bracing pieces can be connected through the bottom and connect and accomplish the series connection, and then extension length, adapt to the not stair of co-altitude, the use flexibility has been improved.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Figure 2 is a side view of the present invention from figure 1.

Fig. 3 is a bottom view of fig. 2 according to the present invention.

Fig. 4 is a schematic perspective view of the first staircase according to the present invention.

Fig. 5 is a rear view of fig. 4 of the present invention.

Fig. 6 is a schematic perspective view of the second staircase according to the present invention.

Fig. 7 is a bottom view of fig. 6 according to the present invention.

Fig. 8 is a schematic perspective view of the third staircase according to the present invention.

Fig. 9 is a bottom view of fig. 8 according to the present invention.

Fig. 10 is a schematic perspective view of the plug of the present invention.

Fig. 11 is a schematic perspective view of the middle support rod of the present invention.

Fig. 12 is an enlarged view of a portion a in fig. 1 according to the present invention.

In the figure: 1-first staircase, 2-first side wall, 201-first slot, 202-first connection hole, 3-second staircase, 4-second side wall, 401-first insertion plate, 402-second connection hole, 5-third staircase, 6-third side wall, 601-second insertion plate, 602-third connection hole, 603-second slot, 604-fourth connection hole, 7-fastener, 8-first through hole, 9-support bar, 10-joint, 11-second through hole, 12-third through hole, 13-bolt, 14-fixing hole, 15-fixing screw.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-12, in an embodiment of the present invention, a prefabricated steel plate combined stair includes a first stair 1 and a fixing screw 15, two first side walls 2 are respectively disposed on two sides of the first stair 1, and one end of the top of the first stair 1 is connected to one end of the bottom of a second stair 3; two second side walls 4 are respectively arranged on two sides of the second stair 3, one end of the top of the second stair 3 is connected with one end of the bottom of the third stair 5, and two third side walls 6 are respectively arranged on two sides of the third stair 5; the middle part of the outer wall of each first side wall 2 is provided with a fixing piece 7; two fixing pieces 7 are arranged on the outer wall of one second side wall 4, and three fixing pieces 7 are arranged on the outer wall of the other second side wall 4; the middle parts of the outer walls of the two third side walls 6 are respectively provided with a fixing piece 7; the bottom of each fixing piece 7 is provided with a support rod 9; the number of the fixing screws 15 is several.

More specifically, the fixing member 7 is welded to the outer walls of the first, second, and third side walls 2, 4, and 6, and both ends of the fixing member 7 are connected to each other.

As a further illustration of the present embodiment, the two second sidewalls 4 are coaxial arc structures.

In particular, the first sidewall 2 includes a first slot 201 and a first connection hole 202; every the both sides of first slot 201 be the symmetry respectively and be equipped with two sets of first connecting holes 202, and the first connecting hole 202 of every group all is the symmetry and is equipped with two, every first connecting hole 202 all is linked together with the inside of first slot 201 simultaneously.

Specifically, first stair 1 is connected through the welded mode with first lateral wall 2, and first stair 1 all adopts steel to make with first lateral wall 2.

As a further description of the present embodiment, the first side wall 2 is a double-layer channel steel.

In particular, the second sidewall 4 includes a first insertion plate 401 and a second connection hole 402; two sides of the first inserting plate 401 are symmetrically provided with two groups of second connecting holes 402, each group of second connecting holes 402 is symmetrically provided with two groups of second connecting holes 402, and the two groups of second connecting holes 402 are communicated with each other.

Specifically, when the first board 401 is butted with the first slot 201, the second connection holes 402 are distributed corresponding to the first connection holes 202, and the sizes of the second connection holes 402 are the same as those of the second connection holes 402.

As a further explanation of the present embodiment, the second side wall 4 is a double-layer channel steel, and the second side wall 4 and the second stairs 3 are connected by welding.

In a specific point, the third sidewall 6 includes a second insert plate 601, a third connection hole 602, a second slot 603 and a fourth connection hole 604; two groups of third connecting holes 602 are symmetrically formed in two sides of the second inserting plate 601, two groups of third connecting holes 602 are symmetrically formed in each group, and the two groups of third connecting holes 602 are communicated with each other; two sets of fourth connecting holes 604 are symmetrically formed in two sides of the second slot 603, two sets of fourth connecting holes 604 are symmetrically formed in each set, and each set of fourth connecting holes 604 is communicated with the inside of the second slot 603.

Specifically, when the second slot 603 is butted with the first board 401, the fourth connection holes 604 are distributed corresponding to the second connection holes 402, and the size of the fourth connection holes 604 is the same as the size of the second connection holes 402.

As a further explanation of the present embodiment, the third side wall 6 adopts a double-layer channel steel, and the third side wall 6 is connected to the third staircase 5 by welding.

Specifically, the outer wall of the fixing member 7 is symmetrically provided with two first through holes 8, and the top of the fixing member 7 is provided with a bolt 13; the bottom of the bolt 13 extends to the inside of the fixing member 7, the bolt 13 is connected with the fixing member 7 in a sliding manner, and two fixing holes 14 are respectively formed in positions of the bolt 13 corresponding to the first through holes 8.

Specifically, after the bottom of the fixing member 7 is butted against the joint 10, the end of the plug 13 is connected to the joint 10.

As a further explanation of the embodiment, after the butt joint, the first through hole 8, the second through hole 11 and the fixing hole 14 are distributed correspondingly, and the fixing screw 15 sequentially penetrates through the first through hole 8 and the second through hole 11 and then is connected with the fixing hole 14 in a threaded manner.

Specifically, the top of the support rod 9 is provided with a joint 10, two groups of second through holes 11 are symmetrically formed in the outer wall of the joint 10, and two second through holes 11 are symmetrically formed in each group; the bottom of the supporting rod 9 is provided with two sets of third through holes 12 in a symmetrical manner, and each set of third through holes 12 is provided with two in a symmetrical manner.

In particular, the support rod 9 and the joint 10 are both hollow structures, and the joint 10 can be butted with the bottom of the support rod 9.

As a further description of the present embodiment, after the butt joint, the second through holes 11 and the third through holes 12 are distributed corresponding to each other.

The utility model discloses a theory of operation is: when in use, the joints 10 at the top ends of the two support rods 9 are respectively inserted into the bottoms of the two fixing pieces 7 on the first side wall 2, then the two bolts 13 are respectively inserted into the top ends of the two joints 10, then the support rods 9 are respectively butted with the fixing pieces 7 on the second side wall 4 and the third side wall 6 through the fixing screws 15 which sequentially penetrate through the first through hole 8 and the second through hole 11 and are in threaded connection with the fixing holes 14, then the additional support rods 9 are selected to be mutually connected in series according to the ground clearance of the second side wall 4 and the third side wall 6 until the second stair 3 and the third stair 5 are stably supported on the ground through the support rods 9, the connection between the supporting rods 9 is reinforced through the screws and the nuts matched with the second through holes 11 and the third through holes 12, then the two first slots 201 are respectively butted with the two first inserting plates 401 at the bottom of the second side wall 4, the connection is reinforced through the screws and the nuts matched with the first connecting holes 202 and the second connecting holes 402, finally, the two second slots 603 at the bottom of the third side wall 6 are respectively butted with the two first inserting plates 401 at the top of the second side wall 4, and finally, the joints are reinforced through the screws and the nuts matched with the second connecting holes 402 and the fourth connecting holes 604, at the moment, the first stair 1, the second stair 3 and the third stair 5 are mutually butted.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (6)

1. The utility model provides a prefabricated steel sheet combination stair which characterized in that: the novel stair comprises a first stair (1) and fixing screws (15), wherein two first side walls (2) are respectively arranged on two sides of the first stair (1), and one end of the top of the first stair (1) is connected with one end of the bottom of a second stair (3); two second side walls (4) are respectively arranged on two sides of the second stair (3), one end of the top of the second stair (3) is connected with one end of the bottom of the third stair (5), and two third side walls (6) are respectively arranged on two sides of the third stair (5); the middle part of the outer wall of each first side wall (2) is provided with a fixing piece (7); two fixing pieces (7) are arranged on the outer wall of one of the second side walls (4), and three fixing pieces (7) are arranged on the outer wall of the other second side wall (4); the middle parts of the outer walls of the two third side walls (6) are respectively provided with a fixing piece (7); the bottom of each fixing piece (7) is provided with a support rod (9); the number of the fixing screws (15) is several.

2. The prefabricated steel plate combined stair of claim 1, wherein: the first side wall (2) comprises a first slot (201) and a first connecting hole (202); every the both sides of first slot (201) be the symmetry respectively and be equipped with two sets of first connecting hole (202), and every first connecting hole of group (202) all is the symmetry and is equipped with two, every first connecting hole (202) all are linked together with the inside of first slot (201) simultaneously.

3. The prefabricated steel plate combined stair of claim 1, wherein: the second side wall (4) comprises a first inserting plate (401) and a second connecting hole (402); two sides of the first inserting plate (401) are symmetrically provided with two groups of second connecting holes (402), each group of second connecting holes (402) are symmetrically provided with two groups of second connecting holes, and the two groups of second connecting holes (402) are communicated with each other.

4. The prefabricated steel plate combined stair of claim 1, wherein: the third side wall (6) comprises a second inserting plate (601), a third connecting hole (602), a second inserting groove (603) and a fourth connecting hole (604); two groups of third connecting holes (602) are symmetrically formed in two sides of the second inserting plate (601), two groups of third connecting holes (602) are symmetrically formed in each group, and the two groups of third connecting holes (602) are communicated with each other; the two sides of the second slot (603) are respectively provided with two groups of fourth connecting holes (604) in a symmetrical mode, each group of fourth connecting holes (604) is provided with two in a symmetrical mode, and each fourth connecting hole (604) is communicated with the inside of the second slot (603).

5. The prefabricated steel plate combined stair of claim 1, wherein: two first through holes (8) are symmetrically formed in the outer wall of the fixing piece (7), and a bolt (13) is installed at the top of the fixing piece (7); the bottom of bolt (13) extend to the inside of mounting (7), and the connected mode of bolt (13) and mounting (7) be sliding connection, two fixed orificess (14) have been seted up respectively in the position that corresponds first through-hole (8) in bolt (13) simultaneously.

6. The prefabricated steel plate combined stair of claim 1, wherein: the top of the supporting rod (9) is provided with a joint (10), two groups of second through holes (11) are symmetrically formed in the outer wall of the joint (10), and two second through holes (11) are symmetrically formed in each group; the bottom of the supporting rod (9) is symmetrically provided with two groups of third through holes (12), and each group of third through holes (12) is symmetrically provided with two.

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