Roof stair with variable angle
By employing mounting brackets, adjustable support plates, and fasteners to fix the brackets on the roof staircase, the angle of the staircase can be adjusted, solving the problem of the non-adjustable angle of existing roof staircases and improving its applicability and safety.
Patent Information
- Application Number
- CN202520144272.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2035-01-22
AI Technical Summary
The existing roof staircases have non-adjustable angles, poor applicability, and cannot meet the needs of different scenarios.
The staircase is designed with two mounting brackets, an adjusting plate, and an adjusting bracket secured by fasteners. Combined with the design of the adjusting plate and the tread, the angle of the staircase can be adjusted and positioned, and the surface of the tread remains horizontal.
The roof staircase angle can be adjusted, improving its applicability and safety, reducing maintenance costs, and enhancing assembly convenience and economy.
Smart Images
Figure CN223753621U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of staircases, in particular to a variable-angle roof staircase. BACKGROUND
[0002] A staircase is a component for vertical traffic between floors in a building, used to connect floors or spaces of different heights, which is composed of a series of steps and handrails, and is an indispensable part of a building. A roof staircase is a kind of staircase, which is specially used to connect floors and roof platforms, and can be used as an evacuation channel to help personnel quickly evacuate to a safe area in an emergency. In the prior art, a roof staircase is usually a pre-assembled component, but most roof staircases cannot be adjusted in angle, have poor applicability, and cannot meet the use requirements of different scenes, and therefore need to be improved. CONTENT OF THE UTILITY MODEL
[0003] In order to realize angle adjustment of a roof staircase and improve the applicability of the roof staircase, the application provides a variable-angle roof staircase.
[0004] The variable-angle roof staircase provided by the application adopts the following technical scheme:
[0005] The variable-angle roof staircase comprises two mounting supports and a plurality of fasteners, the two mounting supports are rotationally connected with adjusting support plates and adjusting supports, the adjusting support plates and the adjusting supports are fixed to the mounting supports through the fasteners, a plurality of steps are arranged between the two adjusting support plates, the inner walls of the two adjusting support plates that are close to each other are provided with adjusting plates, the first ends of the adjusting plates are provided with first fixing holes penetrating through the adjusting plates along the thickness directions, the adjusting plates are provided with second fixing holes penetrating through the adjusting plates corresponding to the first fixing holes, the other ends of the adjusting plates are provided with a plurality of first adjusting holes, the first adjusting holes are distributed along the circumferential direction of the first fixing holes, the side walls of the adjusting support plates are provided with fixing grooves corresponding to the first adjusting holes, and a plurality of supporting beams are arranged between the adjusting support plates and the adjusting supports.
[0006] By adopting the above technical scheme, based on the actual use scene, the adjusting support plates and the adjusting supports are rotated to corresponding angles, the adjusting support plates, the adjusting supports and the mounting supports are fixed through the fasteners, the fasteners are passed through the first fixing holes and the second fixing holes to realize positioning of the adjusting plates, appropriate first adjusting holes are selected, the adjusting plates are fixed to the adjusting support plates through the fasteners, then the steps are installed, so that the surfaces of the steps can be kept horizontal, and thus the assembly is completed. The variable-angle roof staircase provided by the application realizes angle adjustment and improves the applicability of the roof staircase.
[0007] Optionally, the fixing grooves are waist-shaped.
[0008] By adopting the technical scheme, the fixed groove is in a waist shape, which can facilitate the fixation of the fastener and effectively improve the assembly convenience of the roof stair.
[0009] Optionally, a plurality of second adjusting holes are formed through the adjusting plate, the plurality of second adjusting holes are located on the side of the first adjusting hole away from the first fixing hole, and the plurality of second adjusting holes are distributed along the direction of the first fixing hole.
[0010] By adopting the technical scheme, the second adjusting hole can cooperate with the waist-shaped fixed groove, so that the appropriate first adjusting hole or second adjusting hole can be selected to adjust the corresponding angle of the stair, and the roof stair is more flexible and convenient to use.
[0011] Optionally, the tread plate and the adjusting plate one-to-one correspond, and the tread plate is fixed to the top wall of the adjusting plate by the fastener.
[0012] By adopting the technical scheme, the tread plate and the adjusting plate are detachably connected, which facilitates the convenient replacement of the damaged tread plate or adjusting plate, reduces the maintenance cost, and improves the economy of the roof stair.
[0013] Optionally, the tread plate is provided with an abutting edge on the end wall of the side close to the first fixing hole of the adjusting plate, and the abutting edge is used for limiting the adjusting plate.
[0014] By adopting the technical scheme, the abutting edge can be quickly fixed to the tread plate, so as to prevent the adjusting plate from being out of the range of the tread plate during installation, thereby improving the assembly convenience.
[0015] Optionally, the adjusting support plate is provided with a limiting inclined surface at the end.
[0016] By adopting the technical scheme, the limiting inclined surface can effectively prevent the roof stair from collapsing and improve the safety of the roof stair.
[0017] Optionally, the adjusting angle of the adjusting support plate is 30°-52.5°.
[0018] By adopting the technical scheme, the angle of the stair can be adjusted in a large range, thereby effectively improving the applicability of the roof stair.
[0019] Optionally, the adjusting support plate is provided with a safety handrail on the surface.
[0020] By adopting the technical scheme, the safety handrail can be used for people to lean on, thereby improving the safety during use.
[0021] In summary, the roof stair has at least one of the following beneficial technical effects:
[0022] 1. Based on the actual use scene, the adjusting support plate and the adjusting support are rotated to the corresponding angle, and the adjusting support plate, the adjusting support and the mounting support are fixed by using the fasteners. The fasteners pass through the first fixing hole and the second fixing hole to realize the positioning of the adjusting plate. The appropriate first adjusting hole is selected, the adjusting plate and the adjusting support plate are fixed by using the fasteners, then the pedal is installed, so that the surface of the pedal can be kept horizontal, and thus the assembly is completed. The roof stair of the application realizes angle adjustment and improves the applicability of the roof stair.
[0023] 2. The roof stair of the application has a large range of angle adjustment, which can effectively improve the applicability of the roof stair of the application. BRIEF DESCRIPTION OF DRAWINGS
[0024] Figure 1 is a structure schematic view of a roof variable-angle stair in the embodiment of the application.
[0025] Figure 2 is an installation structure schematic view of an adjusting plate in the embodiment of the application.
[0026] Figure 3 is a structure schematic view of an adjusting plate in the embodiment of the application.
[0027] Figure 4 is Figure 2 is an enlarged view of part A in FIG. 6.
[0028] Figure 5 is a side view of a pedal in the embodiment of the application.
[0029] Figure 6 is a schematic view of the adjusting range of the roof stair of the application.
[0030] The reference signs are explained as follows: 1, mounting support; 2, fastener; 3, adjusting support plate; 4, adjusting support; 5, pedal; 6, adjusting plate; 7, first fixing hole; 8, second fixing hole; 9, first adjusting hole; 10, fixing groove; 11, support beam; 12, second adjusting hole; 13, abutting edge; 14, limiting inclined surface; 15, safety handrail. DETAILED DESCRIPTION
[0031] The application is further described in detail below with reference to the accompanying drawings. Figures 1-6 The application is further described in detail below with reference to the accompanying drawings.
[0032] The embodiment of the application discloses a roof variable-angle stair. Referring to FIG. 1, Figure 1 which comprises two mounting supports 1 arranged in parallel and a plurality of fasteners 2. In the embodiment, the fasteners 2 are all combined by bolts and nuts, which has the advantages of convenient assembly and the like.
[0033] Referring to FIG. 2, Figure 1And Figure 2 Each mounting bracket 1 is rotatably connected with an adjusting plate 3 and an adjusting bracket 4, the adjusting plate 3 and the adjusting bracket 4 are fixed with the mounting bracket 1 through the fastener 2, a limiting inclined surface 14 is arranged at the end of the adjusting plate 3 to prevent the adjusting plate 3 from collapsing, thereby improving safety; the side of the adjusting plate 3 close to each other is provided with a plurality of adjusting plates 6, a plurality of steps 5 are arranged between the two adjusting brackets 4, the adjusting plate 6 and the step 5 are one-to-one corresponding, and the step 5 is fixed on the top of the adjusting plate 6 through the fastener 2, thereby realizing quick assembly of the step 5 and the adjusting plate 6.
[0034] Referring to Figure 2 , 3 And Figure 4 A first fixing hole 7 is arranged on one side of the adjusting plate 6, a plurality of second fixing holes 8 are arranged on the adjusting plate 3 corresponding to the first fixing hole 7, and the fastener 2 passes through the first fixing hole 7 and the second fixing hole 8 to fix the adjusting plate 6; a plurality of first adjusting holes 9 are arranged on the other side of the adjusting plate 6, the first adjusting holes 9 are distributed along the circumferential direction of the first fixing hole 7, a plurality of fixing grooves 10 are arranged on the adjusting plate 3, the fixing grooves 10 are arranged in a waist shape in this embodiment, a plurality of second adjusting holes 12 are arranged on the adjusting plate 6, the second adjusting holes 12 are located on the side away from the first fixing hole 7 of the first adjusting hole 9, and the second adjusting holes 12 are distributed along the circumferential direction of the first fixing hole 7, so as to cooperate with the waist-shaped fixing groove 10 to position the adjusting plate 6, thereby realizing horizontal arrangement of the step 5.
[0035] Referring to Figure 1 , Figure 3 , Figure 5 And Figure 6 An abutting edge 13 is formed on one end of the step 5 close to the first fixing hole 7 of the adjusting plate 6, so as to abut against the end of the adjusting plate 6, thereby realizing quick positioning of the adjusting plate 6 and facilitating assembly; a plurality of supporting beams 11 are arranged between the adjusting plate 3 and the adjusting bracket 4, and the supporting beams 11 are fixed with the adjusting plate 3 and the adjusting bracket 4 through the fastener 2, so as to improve stability; a safety handrail 15 is arranged on the surface of the adjusting plate 3, so as to improve safety in use; in this embodiment, the adjusting angle of the roof stair is 30°-52.5°.
[0036] The implementation principle of the roof variable-angle stair in the embodiment of the application is as follows: based on the actual use scene, the adjusting plate 3 and the adjusting bracket 4 are rotated to the corresponding angle, the adjusting plate 3, the adjusting bracket 4 and the mounting bracket 1 are fixed through the fastener 2, the first fixing hole 7 and the second fixing hole 8 are passed through through the fastener 2 to position the adjusting plate 6, the appropriate first adjusting hole 9 is selected, the adjusting plate 6 and the adjusting plate 3 are fixed through the fastener 2, and then the step 5 is installed, so that the surface of the step 5 can be kept horizontal, and thus the assembly is completed.
[0037] The above are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, and thus: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.
Claims
1. A variable angle roof stair, characterized by: The utility model relates to a kind of adjustable footrests, including two installation supports (1) and several fasteners (2), two described installation supports (1) are rotatably connected with adjusting plate (3) and adjusting bracket (4), adjusting plate (3) and adjusting bracket (4) are fixed with installation support (1) by fastener (2), several footboards (5) are provided between two described adjusting plate (3), the inner wall of two described adjusting plate (3) is close to each other and is provided with adjusting plate (6), the first fixed hole (7) for fastener (2) is passed through and is opened in the thickness direction in one end of adjusting plate (6), the second fixed hole (8) is opened and passed through in adjusting plate (3) corresponding first fixed hole (7), the first adjusting hole (9) is opened in the other end of adjusting plate (6), and several first adjusting holes (9) are distributed along the circumferential direction of first fixed hole (7), fixed groove (10) is opened in the side wall of adjusting plate (3) corresponding first adjusting hole (9), and several support beams (11) are provided between adjusting plate (3) and adjusting bracket (4).
2. A variable angle roof stair according to claim 1, wherein: The fixed groove (10) is opened in waist type.
3. A variable angle roof stair according to claim 2, wherein: Second adjusting hole (12) is opened and passed through in adjusting plate (6), and several second adjusting holes (12) are located on the side, away from first fixed hole (7), of first adjusting hole (9), and several second adjusting holes (12) are distributed along the direction of first fixed hole (7).
4. A variable angle roof stair according to claim 1, wherein: The footboard (5) is one-to-one corresponding with adjusting plate (6), and the footboard (5) is fixed to the top wall of adjusting plate (6) by fastener (2).
5. A variable angle roof stair according to claim 4, wherein: The footboard (5) is provided with an abutting edge (13) on the side wall of one end of adjusting plate (6), and the abutting edge (13) is used for limiting adjusting plate (6).
6. A variable angle roof stair according to claim 1, wherein: The end of adjusting plate (3) is provided with a limiting inclined surface (14).
7. A variable angle roof stair according to claim 1, wherein: The adjusting angle of adjusting plate (3) is 30°-52.5°.
8. A variable angle roof stair according to claim 1, wherein: The surface of adjusting plate (3) is provided with a safety handrail (15).