Fabricated self-locking stair

Abstract

The utility model discloses an assembly type self-locking stair which comprises an obliquely-arranged stair beam, a plurality of step plate assemblies are detachably connected to the stair beam in the inclination direction of the stair beam, each step plate assembly comprises a supporting base, a transverse supporting piece is arranged on each supporting base, and a step plate is arranged on each transverse supporting piece. The stair can be rapidly assembled, the weight of the stair can be effectively reduced, the pedals can be rapidly installed and replaced on the stair plates, the single pedal can be conveniently replaced, the maintenance period is shortened, and meanwhile the stair is suitable for being assembled in a narrow space.

Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering, in particular to an assembled self-locking staircase. Background Art

[0002] With the development of the construction industry, prefabricated buildings have gradually begun to gain widespread recognition. Prefabricated buildings refer to buildings that transfer a large amount of on-site work in traditional construction methods to factories, where building components and accessories such as floor slabs, wall panels, stairs and balconies are processed and manufactured in factories, transported to construction sites, and assembled and installed on site through reliable connection methods.

[0003] In the current prefabricated staircases, the prefabricated staircases are usually formed by integrally casting reinforced concrete in the factory, and then the factory transports the prefabricated staircases to the construction site for splicing and fixing. The stair treads and pedals are still an integrated structure, which leads to a large weight of the staircase. In the later use, if a single pedal is damaged, the whole section needs to be repaired, which is inconvenient and inefficient to repair. Utility Model Content

[0004] The purpose of the utility model is to provide an assembled self-locking staircase, which can reduce the weight of the staircase, realize the rapid installation and replacement of pedals on the stair slab, facilitate the replacement of a single pedal, and reduce the maintenance cycle.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: an assembled self-locking staircase, including an inclined ladder beam, on which a plurality of tread assemblies are detachably connected along the inclined direction thereof, and the tread assembly includes a supporting base, on which a transverse support member is provided, and on which a tread is provided.

[0006] A further improvement of the utility model is that the support base includes a horizontal plate, connecting plates are vertically provided on both sides of the horizontal plate, the connecting plates are connected to the ladder beams, a plurality of first screw holes are provided on the horizontal plate, and the transverse support members are fixed to the horizontal plate by bolts.

[0007] A further improvement of the utility model is that the transverse support member includes a horizontal support plate and a vertical support plate, the horizontal support plate is fixedly connected to the horizontal plate by bolts, and the vertical support plate blocks the opening formed by the horizontal plate and the connecting plates on both sides.

[0008] A further improvement of the utility model is that the horizontal support plate and the vertical support plate are provided with special-shaped parts for facilitating weight reduction.

[0009] A further improvement of the utility model is that a gap is provided between two adjacent support bases, the gap is matched with the thickness of the vertical support plate, and the lower end of the vertical support plate is inserted and fixed in the gap.

[0010] A further improvement of the present invention is that a nut matching the first screw hole is fixedly provided on the lower end surface of the horizontal plate, and the transverse support is threadedly connected to the nut via a bolt.

[0011] A further improvement of the utility model is that a plurality of second screw holes are provided on the lower end surface of the tread plate, a third screw hole matching the second screw holes is provided on the horizontal support plate, and the tread plate and the horizontal support plate are fixedly connected by bolts.

[0012] A further improvement of the utility model is that ladder beam fixing plates are provided at both ends of the ladder beam.

[0013] A further improvement of the present invention is that the ladder beam, the support base and the transverse support member are made of metal.

[0014] The beneficial effects of the utility model are:

[0015] The utility model arranges a tread plate assembly on the ladder beam, and realizes rapid assembly of the stairs through a supporting base, a transverse supporting member and a tread plate, which can effectively reduce the weight of the stairs, realize rapid installation and replacement of the tread plate on the stair plate, facilitate the replacement of a single tread plate, and reduce the maintenance cycle.

[0016] The utility model uses an inclined ladder beam as a main body support. The ladder beam is small in size and easy to fix. Compared with the existing prefabricated stairs, the difficulty during construction is reduced, the installation is convenient, and it is suitable for assembly in narrow spaces.

[0017] The utility model arranges a transverse support member on the support base and increases the transverse support area through the horizontal support plate, which is convenient for the installation of the step board and increases the walking range. The lower end of the vertical support plate is plugged and fixed in the gap between adjacent support bases, and self-locking can be achieved without adding bolts. The fixation is firm and the installation efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model.

[0019] Figure 2 This is a schematic structural diagram of a tread plate assembly of the utility model.

[0020] Figure 3 This is a schematic diagram of the position of the vertical support plate of the utility model.

[0021] In the figure, 1-ladder beam, 2-support base, 3-lateral support member, 4-step plate, 5-horizontal plate, 6-connecting plate, 7-horizontal support plate, 8-vertical support plate, 9-opening, 10-special-shaped part, 11-ladder beam fixing plate, 12-concrete steel beam. DETAILED DESCRIPTION

[0022] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. Example

[0023] Combination Figures 1 to 3 It can be seen that an assembled self-locking staircase includes an inclined ladder beam 1, on which a plurality of tread board assemblies are detachably connected along the inclined direction thereof, and the tread board assembly includes a support base 2, on which a transverse support member 3 is provided, and on which a tread board 4 is provided. The ladder beam 1, the support base 2 and the transverse support member 3 are made of metal.

[0024] The support base 2 includes a horizontal plate 5, with connecting plates 6 vertically arranged on both sides of the horizontal plate 5, the connecting plates 6 are connected to the ladder beam 1, a plurality of first screw holes are arranged on the horizontal plate 5, and the transverse support member 3 is fixed to the horizontal plate 5 by bolts.

[0025] The transverse support member 3 includes a horizontal support plate 7 and a vertical support plate 8. The horizontal support plate 7 is fixedly connected to the horizontal plate 5 by bolts, and the vertical support plate 8 blocks an opening 9 formed by the horizontal plate 5 and the connecting plates 6 on both sides.

[0026] The horizontal support plate 7 and the vertical support plate 8 are provided with a special-shaped portion 10 for facilitating weight reduction. Preferably, the horizontal support plate 7 and the vertical support plate 8 are an integrated structure.

[0027] A gap is provided between two adjacent support bases 2 , and the gap is adapted to the thickness of the vertical support plate 8 , and the lower end of the vertical support plate 8 is inserted and fixed in the gap.

[0028] A nut matched with the first screw hole is fixedly provided on the lower end surface of the horizontal plate 5, and the transverse support member 3 is threadedly connected with the nut through a bolt.

[0029] The lower end surface of the step board 4 is provided with a plurality of second screw holes, and the horizontal support plate 7 is provided with third screw holes matching the second screw holes. The step board 4 and the horizontal support plate 7 are fixedly connected by bolts. The step board 4 is finished with a wooden structure and lined with nuts. The bolts are installed from the bottom without affecting the upper surface of the step board, which is convenient for people to walk. Preferably, the screws are aesthetically pleasing screws.

[0030] The two ends of the ladder beam 1 are provided with ladder beam fixing plates 11. The ladder beam fixing plates 11 are connected to the concrete steel beams of the building to support and fix the stairs. Preferably, the ladder beam fixing plates 11 are embedded steel plates and are connected to the building by chemical bolts.

[0031] The working principle of an assembled self-locking staircase provided by the utility model is as follows: during installation, the ladder beam 1 is installed in place through the ladder beam fixing plate 11, and the support base 2 is installed on it along the inclination direction of the ladder beam 1, and then the horizontal support plate 7 is fixed to the support base 2 by bolts. When the horizontal support plate 7 is installed in place, the lower end of the vertical support plate 8 is inserted and fixed in the gap between adjacent support bases 2 to achieve self-locking, and finally the step plate 4 is fixed to the horizontal support plate 7 by bolts to complete the installation.

[0032] In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model. Any equivalent structure or equivalent process transformation made using the contents of the utility model specification and the accompanying drawings, or directly or indirectly used in other related technical fields, are similarly included in the patent protection scope of the present utility model.

Claims

1. An assembled self-locking staircase, characterized in that: The invention comprises an inclined ladder beam (1), a plurality of tread plate assemblies being detachably connected to the ladder beam (1) along its inclined direction, the tread plate assembly comprising a support base (2), a transverse support member (3) being provided on the support base (2), and a tread plate (4) being provided on the transverse support member (3).

2. The assembled self-locking staircase according to claim 1, characterized in that: The support base (2) comprises a horizontal plate (5), connecting plates (6) are vertically provided on both sides of the horizontal plate (5), the connecting plates (6) are connected to the ladder beam (1), a plurality of first screw holes are provided on the horizontal plate (5), and the transverse support member (3) is fixed to the horizontal plate (5) by bolts.

3. The assembled self-locking staircase according to claim 2 is characterized in that: The transverse support member (3) comprises a horizontal support plate (7) and a vertical support plate (8); the horizontal support plate (7) is fixedly connected to the horizontal plate (5) by bolts; and the vertical support plate (8) covers an opening (9) formed by the horizontal plate (5) and the connecting plates (6) on both sides.

4. The assembled self-locking staircase according to claim 3 is characterized in that: The horizontal support plate (7) and the vertical support plate (8) are provided with special-shaped portions (10) for facilitating weight reduction.

5. The assembled self-locking staircase according to claim 4, characterized in that: A gap is provided between two adjacent support bases (2), the gap being compatible with the thickness of the vertical support plate (8), and the lower end of the vertical support plate (8) is inserted and fixed in the gap.

6. The assembled self-locking staircase according to claim 2, characterized in that: A nut matching the first screw hole is fixedly provided on the lower end surface of the horizontal plate (5), and the transverse support member (3) is threadedly connected to the nut via a bolt.

7. The assembled self-locking staircase according to claim 3 is characterized in that: A plurality of second screw holes are provided on the lower end surface of the tread plate (4), and third screw holes matching the second screw holes are provided on the horizontal support plate (7). The tread plate (4) and the horizontal support plate (7) are fixedly connected by bolts.

8. The assembled self-locking staircase according to claim 1, characterized in that: Ladder beam fixing plates (11) are provided at both ends of the ladder beam (1).

9. The assembled self-locking staircase according to claim 1, characterized in that: The ladder beam (1), the supporting base (2) and the transverse supporting member (3) are made of metal.

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