An assembled stair

Abstract

This utility model relates to the field of prefabricated building technology and provides a prefabricated staircase, comprising: a support frame; a mounting base mounted on the support frame; a tread disposed on the mounting base, the tread being provided with a protective bar for pedestrian protection; and a mounting mechanism mounted on the mounting base and the tread, the mounting mechanism being used to fix the tread and the mounting base together; the mounting mechanism includes: a connecting block fixedly mounted on the bottom of the tread, the connecting block being adapted to a connecting groove on the mounting base; and connecting bolts disposed on the connecting block and the mounting base. The prefabricated staircase provided by this solution is easy and simple to install, providing convenience for installation work.

Description

Technical Field

[0001] This utility model belongs to the field of prefabricated building technology, and in particular relates to a prefabricated staircase. Background Technology

[0002] Staircases are vertical transportation facilities in buildings used to connect different floors or heights, and their design must take into account functionality, safety, and aesthetics.

[0003] Currently, many prefabricated buildings are widely used, among which prefabricated staircases are a common type of prefabricated building. According to the patent document with authorization announcement number CN222893887U, a prefabricated staircase is disclosed. During the installation process, cement is required for pouring, which makes the installation relatively troublesome. Utility Model Content

[0004] This utility model provides a prefabricated staircase, which aims to solve the problem mentioned in the background art that some existing prefabricated staircases require cement pouring during installation, making the installation process relatively troublesome.

[0005] To solve the above problems, this utility model is implemented as follows: a prefabricated staircase includes: a support frame; a mounting base mounted on the support frame; a tread disposed on the mounting base, the tread being provided with a protective bar for pedestrian protection; and a mounting mechanism mounted on the mounting base and the tread, the mounting mechanism being used to fix the tread and the mounting base together.

[0006] Preferably, the mounting mechanism includes: a connecting block fixedly mounted on the bottom of the pedal, the connecting block and the connecting groove on the mounting base being adapted to each other; and a connecting bolt provided on the connecting block and the mounting base, the connecting bolt having a nut threaded onto it.

[0007] Preferably, the support frame and the mounting base are provided with a positioning mechanism, which is used to position and connect the mounting base and the support frame. The positioning mechanism includes: a support base fixedly installed on the support frame; a mounting block fixedly installed on the bottom of the mounting base, the mounting block and the mounting groove on the support base being adapted to each other; and a first positioning screw threaded on the support base and the mounting block.

[0008] Preferably, the support frame is provided with a plurality of expansion screws, and the support frame is installed and fixed to the corresponding wall surface by means of the expansion screws.

[0009] Preferably, each of the multiple pedals is provided with a support rod, and the support rod is provided with a second positioning screw. The support rod is fixedly connected to the pedal through the second positioning screw, and the top end of the support rod is connected to the protective rod.

[0010] Preferably, a locking block is fixedly installed at the bottom of the protective rod, and a retaining sleeve is fixedly installed at the top of the support rod. The locking block and the retaining sleeve are adapted to each other, and a third positioning screw is threaded onto the locking block and the retaining sleeve.

[0011] Preferably, the support rod is provided with a guardrail, and the guardrail is provided with a fourth positioning screw, and the guardrail is fixedly connected to the support rod by the fourth positioning screw.

[0012] Compared with related technologies, the prefabricated staircase provided by this utility model has the following advantages:

[0013] Compared with existing technologies, the prefabricated staircase provided by this solution is easy and simple to install, providing convenience for the installation work of the staff. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of a prefabricated staircase provided by this utility model;

[0015] Figure 2 This is a schematic diagram of the front sectional view of the present invention;

[0016] Figure 3 for Figure 2 An enlarged structural diagram of part A shown in the figure;

[0017] Figure 4 for Figure 1 The diagram shows an enlarged view of part B.

[0018] Reference numerals in the attached drawings: 1. Support frame; 2. Mounting base; 3. Pedal; 4. Connecting block; 5. Connecting bolt; 6. Nut; 7. Support base; 8. Mounting block; 9. First positioning screw; 10. Expansion screw; 11. Support rod; 12. Guard rod; 13. Second positioning screw; 14. Clamping block; 15. Clamping sleeve; 16. Third positioning screw; 17. Guardrail. Detailed Implementation

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings are used to distinguish different objects, not to describe a particular order; the terms "inner," "outer," "left," and "right" indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0020] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0021] This utility model embodiment provides a prefabricated staircase, such as Figure 1-4 As shown, the prefabricated staircase includes: a support frame 1; a mounting base 2 mounted on the support frame 1; a tread 3 mounted on the mounting base 2, the tread 3 being provided with a protective bar 12 for pedestrian protection; and a mounting mechanism mounted on the mounting base 2 and the tread 3, the mounting mechanism being used to fix the tread 3 and the mounting base 2 together.

[0022] In this embodiment, during overall installation and use, the support frame 1 is first fixedly connected to the corresponding wall mounting position. Then, multiple mounting seats 2 are fixedly connected to the support frame 1. Next, the treads 3 are fixedly connected to the mounting seats 2 through the installation mechanism. Finally, the guardrail 12 is installed, thereby completing the assembly of the entire staircase. In use, pedestrians walk upstairs through multiple progressively increasing treads 3. At the same time, the guardrail 12 can provide safety protection for pedestrians, ensuring walking safety. The entire staircase is easy and simple to assemble, providing convenience for the installation work of the staff.

[0023] In a further preferred embodiment of the present invention, the installation mechanism includes: a connecting block 4 fixedly installed at the bottom of the pedal 3, the connecting block 4 and the connecting groove on the mounting base 2 being adapted to be connected; a connecting bolt 5 provided on the connecting block 4 and the mounting base 2, the connecting bolt 5 being threaded with a nut 6.

[0024] In this embodiment, when using the installation mechanism, the connecting block 4 at the bottom of the pedal 3 and the connecting groove on the mounting base 2 are connected accordingly. Then, the connecting bolt 5 is passed through the corresponding holes on the connecting block 4 and the mounting base 2, and the nut 6 is screwed on and tightened. This can reliably fix the pedal 3 and the mounting base 2 together. Through this mechanical connection, the installation steps are simpler, reducing the complexity and trouble of on-site construction, while also ensuring the stability of the connection.

[0025] In a further preferred embodiment of this utility model, a positioning mechanism is provided on the support frame 1 and the mounting base 2. The positioning mechanism is used to position and connect the mounting base 2 and the support frame 1. The positioning mechanism includes: a support base 7 fixedly installed on the support frame 1; a mounting block 8 fixedly installed on the bottom of the mounting base 2, the mounting block 8 and the mounting groove on the support base 7 being adapted to each other; and a first positioning screw 9 threadedly installed on the support base 7 and the mounting block 8.

[0026] In this embodiment, when connecting the mounting base 2 and the support frame 1, the mounting block 8 at the bottom of the mounting base 2 is aligned and inserted into the mounting groove on the support base 7. This adaptive connection method can quickly and accurately position the mounting base 2 and the support frame 1, ensuring that their relative positions in the horizontal and vertical directions are accurate, avoiding offset during installation, and improving installation efficiency and quality. Then, the first positioning screw 9 is passed through the corresponding holes on the support base 7 and the mounting block 8 and tightened. Through the tightening action of the first positioning screw 9, the connection stability between the mounting base 2 and the support frame 1 can be further strengthened, preventing the mounting base 2 from separating or shifting from the support frame 1 due to vibration or other factors during use.

[0027] In a further preferred embodiment of this utility model, the support frame 1 is provided with a plurality of expansion screws 10, and the support frame 1 is installed and fixed to the corresponding wall surface by means of the expansion screws 10.

[0028] In this embodiment, during installation, the support frame 1 is attached to the corresponding predetermined position on the wall, and then multiple expansion screws 10 are sequentially passed through the preset holes on the support frame 1 and driven into the wall. As the expansion screws 10 are driven in, their outer expansion sleeves will expand and open in the holes in the wall, tightly locking into the holes in the wall, thereby firmly connecting the support frame 1 to the wall.

[0029] In a further preferred embodiment of the present invention, a support rod 11 is provided on each of the plurality of pedals 3, and a second positioning screw 13 is provided on the support rod 11. The support rod 11 is fixedly connected to the pedal 3 through the second positioning screw 13, and the top end of the support rod 11 is connected to the protective rod 12.

[0030] In this embodiment, when installing the support rod 11, the support rod 11 is placed in a suitable position on the pedal 3 so that the holes on the support rod 11 are aligned with the corresponding holes on the pedal 3. Then, the second positioning screw 13 is passed through these holes and tightened. Through the tightening action of the second positioning screw 13, the support rod 11 and the pedal 3 are firmly fixed together to prevent the support rod 11 from loosening or shifting during use.

[0031] In a further preferred embodiment of the present invention, a locking block 14 is fixedly installed at the bottom of the protective rod 12, and a retaining sleeve 15 is fixedly installed at the top of the support rod 11. The locking block 14 and the retaining sleeve 15 are adapted to be connected, and a third positioning screw 16 is threaded onto the locking block 14 and the retaining sleeve 15.

[0032] In this embodiment, the protective rod 12 and the support rod 11 are fixedly connected. The locking block 14 at the bottom of the protective rod 12 is aligned with the retaining sleeve 15 at the top of the support rod 11 and inserted forcefully so that the locking block 14 is fully embedded in the retaining sleeve 15. This quickly achieves the initial positioning and connection of the protective rod 12 and the support rod 11, facilitating subsequent fixing operations. It also restricts the horizontal movement of the protective rod 12, enhancing the stability of the connection. After the locking block 14 is embedded in the retaining sleeve 15 and the initial connection is completed, the third positioning screw 16 is passed through the corresponding holes on the locking block 14 and the retaining sleeve 15 and tightened with a tool to prevent the locking block 14 from coming out of the retaining sleeve 15 due to vibration, external impact, or other factors during use. This ensures the firmness and reliability of the connection between the protective rod 12 and the support rod 11.

[0033] In a further preferred embodiment of the present invention, a guardrail 17 is provided on the support rod 11, and a fourth positioning screw is provided on the guardrail 17. The guardrail 17 is fixedly connected to the support rod 11 by the fourth positioning screw.

[0034] In this embodiment, the guardrail 17 is placed at a suitable position on the support rod 11 so that the holes on the guardrail 17 are precisely aligned with the corresponding holes on the support rod 11. Then, the fourth positioning screw is passed through these aligned holes and tightened with a tool. Through the tightening action of the fourth positioning screw, the guardrail 17 can be firmly fixedly connected to the support rod 11, thereby providing further protection for pedestrians and improving the safety of pedestrians when walking.

[0035] In summary, compared with related technologies, the prefabricated staircase in this solution is easy and simple to install, providing convenience for the installation work of the staff.

[0036] It should be understood, in the several embodiments provided in this application, that the disclosed apparatus may be implemented in other ways.

[0037] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A prefabricated stair, characterized in that, include: Support frame; Mounting base assembled on the support frame; A foot pedal is provided on the mounting base, and a protective bar is provided on the foot pedal for the protection of pedestrians; A mounting mechanism is assembled on the mounting base and the pedal, the mounting mechanism being used to fix the pedal and the mounting base in place.

2. The prefabricated stair according to claim 1, characterized in that The installation mechanism includes: A connecting block is fixedly installed at the bottom of the pedal, and the connecting block is adapted to the connecting groove on the mounting base; Connecting bolts are provided on the connecting block and the mounting base, and nuts are threaded onto the connecting bolts.

3. The prefabricated stair according to claim 1, characterized in that The support frame and the mounting base are provided with a positioning mechanism, which is used to position and connect the mounting base and the support frame. The positioning mechanism includes: A support base that is fixedly installed on the support frame; A mounting block is fixedly installed at the bottom of the mounting base, and the mounting block is adapted to be connected to the mounting groove on the support base; A first positioning screw is threaded onto the support and the mounting block.

4. The prefabricated stair according to claim 1, characterized in that The support frame is equipped with multiple expansion screws, and the support frame is installed and fixed to the corresponding wall surface through the expansion screws.

5. The prefabricated stair according to claim 1, characterized in that Each of the multiple pedals is provided with a support rod, and the support rod is provided with a second positioning screw. The support rod is fixedly connected to the pedal through the second positioning screw, and the top end of the support rod is connected to the protective rod.

6. The prefabricated stair according to claim 5, characterized in that A locking block is fixedly installed at the bottom of the protective rod, and a retaining sleeve is fixedly installed at the top of the support rod. The locking block and the retaining sleeve are adapted to each other, and a third positioning screw is threaded onto the locking block and the retaining sleeve.

7. The prefabricated stair according to claim 5, characterized in that A guardrail is provided on the support rod, and a fourth positioning screw is provided on the guardrail. The guardrail is fixedly connected to the support rod through the fourth positioning screw.

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