Prefabricated building stair board structure

Abstract

The utility model discloses a prefabricated building stair plate structure, which relates to the technical field of building stair plates and comprises a head step and a tail step, grooves are formed in the sides, close to each other, of the top ends of the head step and the tail step, a plurality of first positioning columns are arranged at the bottom ends of the two grooves, and a plurality of second positioning columns are arranged at the bottom ends of the first positioning columns. A plurality of prefabricated stair board bodies are arranged on the inner walls of the two grooves, first positioning grooves matched with the first positioning columns in shape are formed in the two sides of the bottom ends of the prefabricated stair board bodies correspondingly, and through the structures such as the first positioning grooves, the first positioning columns, the grooves, the second positioning grooves and the second positioning columns, the prefabricated stair board bodies can be conveniently assembled and disassembled. The effect that the assembling efficiency can be improved due to the fact that the size and weight are small and hoisting is convenient and fast during hoisting is achieved, and the problems that due to the fact that a traditional prefabricated stair plate is large in size and weight, assembling operation can be completed only by using professional hoisting equipment during hoisting, the hoisting cost is increased, assembling is troublesome, and the assembling efficiency is poor are solved. And the assembling efficiency is influenced.

Description

TECHNICAL FIELD

[0001] The utility model relates to building stair plate technical field, especially a prefabricated building stair plate structure. BACKGROUND

[0002] Stairs are one of the very important components of a building, and most of the building methods adopt traditional cast-in-place. With the interest in assembled houses, more and more projects choose to use prefabricated stairs instead of traditional cast-in-place stairs. Prefabricated stairs are not only more beautiful than cast-in-place stairs, but also can improve the efficiency of construction, reduce environmental pollution, improve the quality of the project, and effectively reduce the quality problems caused by uneven quality of artificial.

[0003] At present, the existing prefabricated stair plate is generally integrally poured, so the volume and weight are large, and therefore professional hoisting equipment is needed to complete the assembly operation during hoisting, thereby increasing the hoisting cost and causing trouble during assembly and affecting the assembly efficiency.

[0004] Therefore, the prefabricated building stair plate structure is proposed to solve the above technical problems. CONTENT OF THE UTILITY MODEL

[0005] The main purpose of the utility model is to provide a prefabricated building stair plate structure, which can effectively solve the technical problems of large volume and weight of the prefabricated stair plate in the background art, and the trouble during assembly and the influence on the assembly efficiency.

[0006] To achieve the above purpose, the technical scheme adopted by the utility model is as follows:

[0007] A prefabricated building stair plate structure, comprising a first step and a tail step, recesses are formed on one side of the top ends of the first step and the tail step, a plurality of first positioning columns are formed at the bottom ends of the two recesses, a plurality of prefabricated stair plate bodies are arranged on the inner walls of the two recesses, a plurality of first positioning grooves are formed on both sides of the bottom ends of the plurality of prefabricated stair plate bodies and are matched with the shapes of the first positioning columns, a plurality of second positioning grooves are formed at the top ends of the plurality of prefabricated stair plate bodies, a plurality of step steps are arranged above the plurality of prefabricated stair plate bodies, and a plurality of second positioning columns matched with the shapes of the second positioning grooves are fixedly connected to the bottom ends of the plurality of step steps.

[0008] As a further scheme of the utility model, first limiting grooves are formed at both ends of the plurality of step steps, and a plurality of second limiting grooves are formed at the ends of the prefabricated stair plate bodies away from each other.

[0009] As a further scheme of the utility model, the prefabricated stair plate body is provided with a stair handrail at one end away from each other on both sides, a second limiting column matched with the shape of the second limiting groove is fixedly connected at one end close to each other of the two stair handrails, and a first limiting column matched with the shape of the first limiting groove is fixedly connected above the corresponding second limiting column at one end close to each other of the two stair handrails.

[0010] As a further scheme of the utility model, the first step and the tail step are provided with an expansion groove at both sides of the corresponding groove at one end close to each other, a clamping column is slidably connected to the inner wall of the four expansion grooves, and the four clamping columns are in contact with the stair handrails.

[0011] As a further scheme of the utility model, a spring is fixedly connected between the four expansion grooves and the clamping columns, and one end of the four clamping columns close to each other is provided as an inclined surface.

[0012] As a further scheme of the utility model, the second limiting column is perpendicular to the horizontal plane, and the length of the groove is equal to the length between the plurality of prefabricated stair plate bodies.

[0013] The utility model has the advantages as follows:

[0014] Through the cooperation of the first positioning groove, the first positioning column and the groove, the prefabricated stair plate bodies can be installed in sequence, and the steps can be installed in sequence through the cooperation of the second positioning groove and the second positioning column.

[0015] Through the cooperation of the second limiting groove, the second limiting column, the first limiting groove and the first limiting column, the stair handrails can be installed on both sides of the prefabricated stair plate bodies. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is an overall structure schematic view of the prefabricated building stair plate structure of the utility model;

[0017] Figure 2 It is a split view of the prefabricated building stair plate structure of the utility model;

[0018] Figure 3Another perspective view of the prefabricated building stair plate structure is split;

[0019] Figure 4 A tail step sectional view of the prefabricated building stair plate structure is split;

[0020] Figure 5 A first positioning groove structure diagram of the prefabricated building stair plate structure is split.

[0021] In the figure: 1, the first step; 2, the tail step; 3, the groove; 4, the first positioning column; 5, the prefabricated stair plate body; 6, the first positioning groove; 7, the second positioning groove; 8, the step; 9, the second positioning column; 10, the first limiting groove; 11, the second limiting groove; 12, the stair handrail; 13, the first limiting column; 14, the second limiting column; 15, the expansion slot; 16, the clamping column; 17, the spring. Specific implementation

[0022] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific implementation modes.

[0023] As Figures 1-5 shown, a prefabricated building stair plate structure, including first step 1 and tail step 2, first step 1 and tail step 2 top end are close to each other one side and are provided with groove 3, two grooves 3 bottom end are provided with a plurality of first positioning column 4, two grooves 3 inner wall is provided with a plurality of prefabricated stair plate body 5, a plurality of prefabricated stair plate body 5 bottom end both sides are provided with the first positioning groove 6 with the shape of first positioning column 4 is adapted, a plurality of prefabricated stair plate body 5 top end is provided with a plurality of second positioning groove 7, a plurality of prefabricated stair plate body 5 top are provided with a plurality of step 8, a plurality of step 8 bottom end are fixedly connected with a plurality of second positioning column 9 with the shape of second positioning groove 7 is adapted, because the prefabricated stair plate body 5 and step 8 are divided into multiple, when transporting, it is more convenient, and can reduce the damage to prefabricated stair plate body 5 and step 8.

[0024] In the embodiment, a plurality of step 8 both ends are provided with first limiting groove 10, both sides prefabricated stair plate body 5 are provided with a plurality of second limiting groove 11 away from each other one end, both sides prefabricated stair plate body 5 are provided with stair handrail 12 away from each other one end, two stair handrails 12 are fixedly connected with the second limiting column 14 with the shape of second limiting groove 11 is adapted away from each other one end, two stair handrails 12 are fixedly connected with the first limiting column 13 with the shape of first limiting groove 10 is adapted above corresponding second limiting column 14 away from each other one end;

[0025] When installing the stair handrail 12, the second limiting column 14 is inserted into the second limiting slot 11, and the first limiting column 13 is inserted into the first limiting slot 10, so that the connecting strength of the step 8 and the prefabricated stair plate body 5 can be enhanced, and the overall strength can be improved.

[0026] In the embodiment, the first step 1 and the tail step 2 are provided with the telescopic slots 15 on both sides of the corresponding recesses 3 at one end close to each other, the inner walls of the four telescopic slots 15 are slidably connected with the clamping columns 16, and the four clamping columns 16 are in contact with the stair handrail 12.

[0027] When installing the stair handrail 12, the clamping column 16 can be clamped, so that the limiting treatment can be quickly performed after installation, and the stair handrail 12 can be prevented from being separated under vibration.

[0028] In the embodiment, the four groups of telescopic slots 15 and clamping columns 16 are fixedly connected with the springs 17, one end of the four clamping columns 16 close to each other is provided as an inclined surface, the clamping column 16 can be stretched out to the outside by the elastic effect of the spring 17, and the limiting operation is completed, and one side of the clamping column 16 is an inclined surface, so that the stair handrail 12 can be quickly installed.

[0029] In the embodiment, the second positioning column 9 is perpendicular to the horizontal plane, and the length of the recess 3 is equal to the length between the plurality of prefabricated stair plate bodies 5, after the prefabricated stair plate body 5 is installed, it is just completely clamped in the recess 3.

[0030] It should be noted that the prefabricated building stair plate structure can be used, one of the prefabricated stair plate bodies 5 is first aligned with the first positioning slot 6, the prefabricated stair plate body 5 is installed in the recess 3, and the prefabricated stair plate bodies 5 are sequentially installed to complete the installation of all the prefabricated stair plate bodies 5, then the second positioning slot 7 and the second positioning column 9 are matched to sequentially install the step 8, since the prefabricated stair plate body 5 and the step 8 are divided into multiple parts, the volume and weight of each part are small, so the hoisting equipment can be selected in multiple ways during hoisting, and the volume and weight are small, hoisting is convenient and fast, so that the assembly efficiency can be improved.

[0031] After that, through the cooperation of the second limiting groove 11 and the second limiting column 14 and the first limiting groove 10 and the first limiting column 13, the stair handrail 12 can be installed on both sides of the prefabricated stair plate body 5, and when installing, the stair handrail 12 will extrude the clamping column 16 to make it shrink into the telescopic groove 15, and when the stair handrail 12 is installed in place, through the elastic action of the spring 17, the clamping column 16 can be popped out and clamped on the outside of the stair handrail 12, completing the limiting of the stair handrail 12, so that the prefabricated stair plate body 5 and the step 8 can be reinforced to improve the overall strength, and the setting of the stair handrail 12 can provide support when people go up and down the stairs, so as to ensure the safety of the pedestrians.

[0032] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A prefabricated building stair slab structure, comprising a first step (1) and a last step (2), characterized in that: The top of the first step (1) and the tail step (2) are provided with grooves (3) on one side close to each other. Multiple first positioning posts (4) are provided at the bottom of the two grooves (3). Multiple prefabricated stair slab bodies (5) are provided on the inner wall of the two grooves (3). Multiple first positioning grooves (6) that are adapted to the shape of the first positioning posts (4) are provided on both sides of the bottom of the multiple prefabricated stair slab bodies (5). Multiple second positioning grooves (7) are provided at the top of the multiple prefabricated stair slab bodies (5). Multiple steps (8) are provided above the multiple prefabricated stair slab bodies (5). Multiple second positioning posts (9) that are adapted to the shape of the second positioning grooves (7) are fixedly connected to the bottom of the multiple steps (8).

2. The prefabricated building stair slab structure according to claim 1, characterized in that: Each of the multiple steps (8) has a first limiting groove (10) at both ends, and the prefabricated stair slab bodies (5) on both sides have multiple second limiting grooves (11) at the ends away from each other.

3. A prefabricated building stair slab structure according to claim 2, characterized in that: Both sides of the prefabricated stair slab body (5) are provided with stair handrails (12) at the ends away from each other. The two stair handrails (12) are fixedly connected to the ends close to each other with a second limiting post (14) that matches the shape of the second limiting groove (11). The two stair handrails (12) are fixedly connected to the top of the second limiting post (14) corresponding to the ends close to each other with a first limiting post (13) that matches the shape of the first limiting groove (10).

4. A prefabricated building stair slab structure according to claim 2, characterized in that: The first step (1) and the last step (2) are provided with telescopic grooves (15) on both sides of the corresponding groove (3) at one end of each other. The inner walls of the four telescopic grooves (15) are slidably connected with locking posts (16), and the four locking posts (16) are in contact with the stair handrail (12).

5. A prefabricated building stair slab structure according to claim 4, characterized in that: Springs (17) are fixedly connected between the four sets of telescopic grooves (15) and the locking posts (16), and the four locking posts (16) are set with an inclined surface at one end close to each other.

6. A prefabricated building stair slab structure according to claim 1, characterized in that: The second positioning post (9) is set perpendicular to the horizontal plane, and the length of the groove (3) is equal to the length between multiple prefabricated stair slab bodies (5).

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