Assembly structure of high-strength prefabricated stair

Abstract

The utility model discloses an assembly structure of a high-strength prefabricated stair, which relates to the technical field of prefabricated stair assembly, and comprises a device main body, the inner wall of the device main body is provided with a limiting groove, the inner wall of the limiting groove is provided with a limiting rod, and the outer wall of the device main body is provided with a protective sleeve. According to the protection mechanism, the protection rod is movably connected with the fixing sleeve, and the side rod is in threaded connection with the fixing sleeve through the limiting shaft, so that when the device is used, the fixing sleeve and the protection rod are in a movable state by rotating the fixing shaft, and then the fixing sleeve is adjusted to a proper position; then the fixing shaft is reversely rotated to lock the fixing sleeve and the protection rod, then the side rod is fixed to the fixing sleeve through the limiting shaft in a threaded mode, the position of the side rod can be adjusted through the fixing sleeve, the use requirements of different protection scenes are met, the side rod can be detached, later maintenance and replacement are facilitated, and the convenience of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated staircase assembly, in particular to an assembly structure of a high-strength prefabricated staircase. Background Art

[0002] Stairs are components used for vertical transportation between floors in a building. They are used for transportation between floors and when there is a large height difference. Stairs should also be set up in multi-story and high-rise buildings that have elevators and escalators as the main means of vertical transportation. Although high-rise buildings use elevators as the main means of vertical transportation, stairs must still be retained for escape in case of fire. Stairs are composed of continuous steps, platforms and enclosure components. The horizontal projection distance between the lowest and highest steps of the stairs is the ladder length, and the total height of the steps is the ladder height. Stairs can be divided into single-tread stairs, double-tread stairs and multi-tread stairs according to the steps. During the construction process of existing buildings, most concrete staircase structures are used, and the on-site casting method is adopted. This requires a large amount of concrete to meet the size of the stairs, which increases the weight of the stairs themselves, wastes materials, and increases the load on the floors. Therefore, a high-strength prefabricated staircase assembly structure is needed.

[0003] The existing assembly structure of a high-strength prefabricated staircase has the problems of cumbersome installation, inability to protect the staircase surface, and inability to adjust the position of the protective components during operation. Therefore, an assembly structure of a high-strength prefabricated staircase is urgently needed. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide an assembly structure of a high-strength prefabricated staircase to solve the problems of the existing assembly structure of high-strength prefabricated staircases being cumbersome to install, unable to protect the surface of the stairs, and unable to adjust the position of the protective components during use.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an assembly structure of a high-strength prefabricated staircase, comprising a device body, an inner wall of which is provided with a limit groove, and an inner wall of the limit groove is installed with a limit rod.

[0006] A protective cover is installed on the outer wall of the device body.

[0007] A protection mechanism is installed on the outer wall of the device body.

[0008] Preferably, the limiting grooves are threadedly connected to the limiting rods, and the limiting rods are evenly spaced and distributed on the outer wall of the device body.

[0009] Preferably, the protective cover is tightly fitted to the device body, and the corners of the outer wall of the protective cover are rounded.

[0010] Preferably, the protective mechanism includes a protective rod, a fixed sleeve, a fixed shaft, a side rod and a limiting shaft, the outer wall of the device body is equipped with a protective rod, the outer wall of the protective rod is equipped with a fixed sleeve, the inner wall of the fixed sleeve is equipped with a fixed shaft, the outer wall of the fixed sleeve is equipped with a side rod, and the limiting shaft passes through the interior of the side rod.

[0011] Preferably, the protection rod is symmetrically arranged with the central axis of the device body as the center, and the fixing sleeve forms a sliding structure with the protection rod through a fixing shaft.

[0012] Preferably, the fixing sleeve is threadedly connected to the fixing shaft, and the side rod is threadedly fixed to the fixing sleeve via a limiting shaft.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model provides a limit rod, which is threadedly connected to the device body. When the device is used, after the device body is placed at a designated position, the limit rod penetrates the inside of the device body and is fixed to the base, which is convenient to install and reduces the installation time of the stairs. It also avoids the need to use on-site concrete pouring to complete the staircase molding work of traditional stairs, thereby increasing the practicality of the device.

[0015] 2. The utility model is provided with a protective cover, which is in close contact with the device body. When the device is in use, the protective cover covers the surface of the device body, thereby protecting the surface of the device body and extending the service life of the device body. In addition, the corners of the outer wall of the protective cover are rounded, which protects pedestrians from being injured by sharp corners when they fall, thereby increasing the safety of the device.

[0016] 3. The utility model provides a protection mechanism, in which the protection rod and the fixed sleeve are movably connected, and the side rod is threadedly connected to the fixed sleeve through a limiting shaft. When using the device, the fixed sleeve and the protection rod are in an active state by rotating the fixed shaft, and then the fixed sleeve is adjusted to a suitable position, and then the fixed shaft is rotated in the opposite direction to lock the fixed sleeve and the protection rod, and then the side rod is threadedly fixed to the fixed sleeve through the limiting shaft. The setting of the fixed sleeve allows the side rod to be adjusted in position to meet the use requirements of different protection scenarios, and the side rod can be disassembled to facilitate later maintenance and replacement, thereby increasing the convenience of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the utility model from the front;

[0018] Figure 2 This is a schematic diagram showing the structure of the internal components of the utility model;

[0019] Figure 3 It is a structural schematic diagram showing some components of the utility model;

[0020] Figure 4 It is an enlarged structural schematic diagram of the protective mechanism of the utility model.

[0021] In the figure: 1. device body; 2. limiting groove; 3. limiting rod; 4. protective cover; 5. protective mechanism; 501. protective rod; 502. fixing sleeve; 503. fixing shaft; 504. side rod; 505. limiting shaft. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0023] The following describes an embodiment of the utility model based on its overall structure.

[0024] See also Figure 1-4 The invention discloses an assembly structure of a high-strength prefabricated staircase, comprising a device body 1, a limiting groove 2 is provided on the inner wall of the device body 1, a limiting rod 3 is installed on the inner wall of the limiting groove 2, the limiting groove 2 is threadedly connected to the limiting rod 3, the limiting rod 3 is evenly spaced and distributed on the outer wall of the device body 1, and the limiting rod 3 is threadedly connected to the device body 1. When the device is used, after the device body 1 is placed in a designated position, the limiting rod 3 penetrates through the inside of the device body 1 and is fixed to the base, which is convenient to install and reduces the installation time of the stairs. In addition, it avoids the need for traditional stairs to use on-site cast concrete to complete the staircase molding work, thereby increasing the practicality of the device.

[0025] See also Figure 1-4 , an assembly structure of a high-strength prefabricated staircase, a protective cover 4 is installed on the outer wall of a device body 1, the protective cover 4 is tightly fitted with the device body 1, and the outer wall corners of the protective cover 4 are rounded. Through the setting of the protective cover 4, the protective cover 4 and the device body 1 are tightly fitted. When the device is in use, the protective cover 4 covers the surface of the device body 1, protects the surface of the device body 1, and prolongs the service life of the device body 1. In addition, the corners of the outer wall of the protective cover 4 are rounded to protect pedestrians from falling and being hit by sharp corners, thereby increasing the safety of the device.

[0026] See also Figure 1-4, an assembly structure of a high-strength prefabricated staircase, a protective mechanism 5 is installed on the outer wall of a device body 1, and the protective mechanism 5 includes a protective rod 501, a fixed sleeve 502, a fixed shaft 503, a side rod 504 and a limiting shaft 505. The outer wall of the device body 1 is installed with a protective rod 501, a fixed sleeve 502 is installed on the outer wall of the protective rod 501, a fixed shaft 503 is installed on the inner wall of the fixed sleeve 502, a side rod 504 is installed on the outer wall of the fixed sleeve 502, and the limiting shaft 505 runs through the inside of the side rod 504. The protective rod 501 is symmetrically arranged with the central axis of the device body 1 as the center, the fixed sleeve 502 forms a sliding structure with the protective rod 501 through the fixed shaft 503, the fixed sleeve 502 and the fixed shaft 503 are threadedly connected, and the side rod 504 is connected to the fixing shaft 505 through the limiting shaft 505. The fixing sleeve 502 is fixed by threads, and through the provided protection mechanism 5, the protection rod 501 and the fixing sleeve 502 are movably connected, and the side rod 504 is threadedly connected to the fixing sleeve 502 through the limiting shaft 505. When using the device, the fixing sleeve 502 and the protection rod 501 are in an active state by rotating the fixing shaft 503, and then the fixing sleeve 502 is adjusted to a suitable position, and then the fixing shaft 503 is rotated in the opposite direction to lock the fixing sleeve 502 and the protection rod 501, and then the side rod 504 is threadedly fixed to the fixing sleeve 502 through the limiting shaft 505. The setting of the fixing sleeve 502 allows the side rod 504 to be adjusted in position to meet the use requirements of different protection scenarios, and the side rod 504 can be disassembled to facilitate later maintenance and replacement, thereby increasing the convenience of the device.

[0027] Working principle: when in use, first move the device to the desired position, then place the device body 1 at the designated position, and then fix it to the base through the limit rod 3 passing through the inside of the device body 1. The installation is convenient, reducing the installation time of the stairs, and also avoiding the need for traditional stairs to use on-site cast concrete to complete the stair molding work, increasing the practicality of the device, and then cover the surface of the device body 1 with a protective cover 4 to protect the surface of the device body 1 and extend the service life of the device body 1. The corners of the outer wall of the protective cover 4 are rounded to protect pedestrians from falling and being hit by sharp corners, thereby increasing the safety of the device. Finally, by turning The fixed shaft 503 is moved to make the fixed sleeve 502 and the protective rod 501 active, and then the fixed sleeve 502 is adjusted to a suitable position, and then the fixed shaft 503 is rotated in the opposite direction to lock the fixed sleeve 502 and the protective rod 501, and then the side rod 504 is threadedly fixed to the fixed sleeve 502 through the limit shaft 505. The setting of the fixed sleeve 502 allows the side rod 504 to be adjusted in position to meet the use requirements of different protection scenarios, and the side rod 504 can be disassembled to facilitate later maintenance and replacement, thereby increasing the convenience of the device. In this way, the use process of the device is completed. The content not described in detail in this manual belongs to the existing technology known to professional and technical personnel in this field.

[0028] The directions or positional relationships indicated by terms such as "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the protection content of the present invention.

[0029] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An assembly structure of a high-strength prefabricated staircase, comprising a device body (1), characterized in that: The inner wall of the device body (1) is provided with a limiting groove (2), and the inner wall of the limiting groove (2) is installed with a limiting rod (3); A protective cover (4) is installed on the outer wall of the device body (1); A protection mechanism (5) is installed on the outer wall of the device body (1).

2. The assembly structure of a high-strength prefabricated staircase according to claim 1, characterized in that: The limiting groove (2) and the limiting rod (3) are threadedly connected, and the limiting rods (3) are arranged on the outer wall of the device body (1) at equal intervals.

3. The assembly structure of a high-strength prefabricated staircase according to claim 1, characterized in that: The protective cover (4) is tightly fitted to the device body (1), and the corners of the outer wall of the protective cover (4) are rounded.

4. The assembly structure of a high-strength prefabricated staircase according to claim 1, characterized in that: The protection mechanism (5) comprises a protection rod (501), a fixing sleeve (502), a fixing shaft (503), a side rod (504) and a limiting shaft (505); the protection rod (501) is installed on the outer wall of the device body (1); the fixing sleeve (502) is installed on the outer wall of the protection rod (501); the fixing shaft (503) is installed on the inner wall of the fixing sleeve (502); the side rod (504) is installed on the outer wall of the fixing sleeve (502); and the limiting shaft (505) passes through the inside of the side rod (504).

5. The assembly structure of a high-strength prefabricated staircase according to claim 4, characterized in that: The protection rod (501) is symmetrically arranged with the central axis of the device body (1) as the center, and the fixing sleeve (502) forms a sliding structure with the protection rod (501) via a fixing shaft (503).

6. The assembly structure of a high-strength prefabricated staircase according to claim 4, characterized in that: The fixing sleeve (502) is threadedly connected to the fixing shaft (503), and the side rod (504) is threadedly fixed to the fixing sleeve (502) via a limiting shaft (505).

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