Connecting structure for lower end of assembly type building installation supporting stair

Abstract

The utility model discloses an assembly type building installation supporting stair lower end connecting structure, which comprises a platform, a stair body and a reinforcing inserting block, the stair body is installed at one end of the top of the platform, an inserting groove is formed in one end, close to the stair body, of the platform, an installation groove is formed in one end, close to the platform, of the stair body, and the reinforcing inserting block is arranged in the installation groove. And a connecting block is mounted in the mounting groove. The connecting blocks, the springs and the reinforcing inserting blocks are installed, when the stair body is installed on the platform, the connecting blocks are pushed to move under the elastic action of the springs, the connecting blocks drive the reinforcing inserting blocks to move together, the reinforcing inserting blocks can be inserted into the inserting grooves, and when the upper end of the stair body is stressed, the stair body is limited through the reinforcing inserting blocks; the lower end of the stair body can be prevented from being stressed and upwarped from the upper portion of the platform, the reinforcing inserting blocks are inserted into the platform, the stair body can be prevented from being stressed and horizontally sliding on the upper portion of the platform, and stability can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated building connection structures, in particular to a connection structure for the lower end of a prefabricated building installation support staircase. Background Art

[0002] Prefabricated buildings mainly include prefabricated concrete structures, steel structures, modern wooden structures, etc. Stairs are one of the main components of prefabricated buildings. They can connect the upper and lower buildings to form a walkway for traffic between the upper and lower floors. The lower end of the stairs in prefabricated buildings is fixed to the platform through a connecting structure.

[0003] For example, the utility model: "A connection structure for the lower end of the stairs supporting the installation of an assembled building" has a publication number of "CN219909698U". This patent adopts a transition fit through the matching method of the first groove, the second groove and the intermediate positioning piece, and adopts the method of adding the intermediate positioning piece to make the installation of the assembled building more convenient and simple, and the installation accuracy is higher. At the same time, it has better shear resistance and reduces the burden of the screw connector. However, during the implementation of this patent, the lower end of the stairs is only fixed to the platform by bolts. When the upper end of the stairs is subjected to force, its lower end is prone to warping, causing the bolts to be subjected to a large impact force, which is easy to cause the bolts to fall off, and the lower end of the stairs is prone to horizontal movement on the platform under force, which makes the overall stability of the stairs poor. Therefore, the utility model provides a connection structure for the lower end of the stairs supporting the installation of an assembled building to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a connection structure for the lower end of a prefabricated building installation support staircase to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a connection structure for supporting the lower end of stairs installed in an assembled building, comprising a platform, a stair body and a reinforcement plug, wherein the stair body is installed at one end of the top of the platform, a slot is provided at one end of the platform close to the stair body, an installation slot is provided at one end of the stair body close to the platform, and a connecting block is installed inside the installation slot, a reinforcing plug is installed at one end of the connecting block close to the slot, and a sixth screw hole is provided inside the reinforcing plug, a first screw hole is provided on the top of the platform, and a guide block is installed on the top of the reinforcing plug.

[0006] Preferably, a fourth screw hole is provided at one end of the top of the platform away from the stair body, the fourth screw hole is communicated with the slot, and a first bolt is installed on the internal thread of the fourth screw hole.

[0007] Preferably, a third screw hole is provided at one end of the top of the reinforcement plug close to the slot.

[0008] Preferably, a second screw hole is provided at the bottom of the stair body and is communicated with the mounting groove, a fifth screw hole is provided at the top of the stair body and is communicated with the mounting groove, and a second bolt is installed in the internal thread of the fifth screw hole.

[0009] Preferably, a spring is installed at one end of the connection block away from the reinforcing plug block, and one end of the spring away from the connection block is connected to the staircase body.

[0010] Preferably, a cement mortar groove is provided at the bottom of the stair body, and a pouring hole is provided at the top of the stair body, and the pouring hole is communicated with the cement mortar groove.

[0011] Preferably, a guide groove is provided at the top of the mounting groove.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The connection structure at the lower end of the staircase supporting the installation of the prefabricated building is installed with a connection block, a spring and a reinforcement plug. When the staircase body is installed on the platform, the elastic action of the spring pushes the connection block to move, and the connection block drives the reinforcement plug to move together. The reinforcement plug can be inserted into the slot. When the upper end of the staircase body is subjected to force, the staircase body is limited by the reinforcement plug to prevent the lower end of the staircase body from being subjected to force and tilting above the platform. The reinforcement plug is inserted into the platform to prevent the staircase body from being subjected to force and sliding horizontally above the platform, which can effectively improve stability.

[0014] 2. The connection structure at the lower end of the prefabricated building installation support staircase is installed with a first bolt and a second bolt. When in use, the first bolt can be screwed into the third screw hole, and the second bolt can be screwed into the first screw hole to fix the platform and the pouring hole. During use, even if the first bolt falls off, the second bolt can be used to fix the reinforcement plug block to prevent the staircase body and the platform from separating, thereby improving the fixing effect.

[0015] 3. The connection structure at the lower end of the supporting staircase for installation in the prefabricated building is provided with a pouring hole and a cement mortar groove. During installation, cement mortar can be poured into the cement mortar groove through the pouring hole to form a cement mortar layer between the platform and the stair body, which can firmly connect the platform and the stair body, thereby further improving the connection effect between the platform and the stair body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the front cross-sectional view of the utility model;

[0017] Figure 2 It is a schematic diagram of the main cross-section of the staircase body of the utility model;

[0018] Figure 3This is the schematic diagram of the main view sectional view of the platform of the present utility model.

[0019] In the figure: 1. Platform; 2. First screw hole; 3. Second screw hole; 4. Slot; 5. Third screw hole; 6. First bolt; 7. Fourth screw hole; 8. Guide block; 9. Fifth screw hole; 10. Installation groove; 11. Connecting block; 12. Spring; 13. Pouring hole; 14. Cement mortar groove; 15. Stair body; 16. Reinforcement insert block; 17. Sixth screw hole; 18. Second bolt; 19. Guide groove. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0021] Please refer to Figures 1 - 3 , an embodiment provided by the present utility model: A connecting structure for installing and supporting the lower end of a prefabricated building staircase, including a platform 1, a stair body 15 and a reinforcement insert block 16. A stair body 15 is installed at one end of the top of the platform 1. A slot 4 is provided at one end of the platform 1 close to the stair body 15. An installation groove 10 is provided at one end of the stair body 15 close to the platform 1. And a connecting block 11 is installed inside the installation groove 10. A guide groove 19 is provided at the top of the installation groove 10. The connecting block 11 is guided by the guide block 8 and the guide groove 19, so that the connecting block 11 can only move linearly in the horizontal direction. A reinforcement insert block 16 is installed at one end of the connecting block 11 close to the slot 4. And a sixth screw hole 17 is provided inside the reinforcement insert block 16. A first screw hole 2 is provided at the top of the platform 1. A guide block 8 is installed at the top of the reinforcement insert block 16. A spring 12 is installed at one end of the connecting block 11 away from the reinforcement insert block 16. And the end of the spring 12 away from the connecting block 11 is connected to the stair body 15. The elastic action of the spring 12 makes it push the connecting block 11 to move. The connecting block 11 drives the reinforcement insert block 16 to move together, and the reinforcement insert block 16 can be inserted into the slot 4.

[0022] As Figures 1 - 3 shown, a fourth screw hole 7 is provided at one end of the top of the platform 1 away from the stair body 15. The fourth screw hole 7 communicates with the slot 4. And a first bolt 6 is threadedly installed inside the fourth screw hole 7. A third screw hole 5 is provided at one end of the top of the reinforcement insert block 16 close to the slot 4. By screwing the first bolt 6 into the third screw hole 5 and the fourth screw hole 7 at the same time, the reinforcement insert block 16 can be fixed by the first bolt 6.

[0023] As Figures 1 - 3As shown, a second screw hole 3 is provided at the bottom of the staircase body 15, and the second screw hole 3 communicates with the installation groove 10. A fifth screw hole 9 is provided at the top of the staircase body 15, and the fifth screw hole 9 communicates with the installation groove 10. A second bolt 18 is threadedly installed inside the fifth screw hole 9. By screwing the second bolt 18 into the first screw hole 2, the second screw hole 3, the fifth screw hole 9, and the sixth screw hole 17 simultaneously, the platform 1 and the staircase body 15 can be fixed by the second bolt 18.

[0024] As Figures 1 - 3 shown, a cement mortar groove 14 is provided at the bottom of the staircase body 15, and a pouring hole 13 is provided at the top of the staircase body 15. The pouring hole 13 communicates with the cement mortar groove 14. During installation, cement mortar can be poured into the cement mortar groove 14 through the pouring hole 13, so that a cement mortar layer is formed between the platform 1 and the staircase body 15, and the platform 1 and the staircase body 15 can be firmly connected, thereby further improving the connection effect between the platform 1 and the staircase body 15.

[0025] Working principle:

[0026] During installation, place the staircase body 15 on the top of the platform 1 and closely fit the platform 1 and the staircase body 15.

[0027] At this time, the elastic action of the spring 12 causes it to push the connecting block 11 to move. The connecting block 11 drives the reinforcing insertion block 16 to move together, and the reinforcing insertion block 16 can be inserted into the insertion slot 4, so that the sixth screw hole 17 moves to a position directly opposite the fifth screw hole 9, and the third screw hole 5 moves to a position directly opposite the fourth screw hole 7.

[0028] The worker can screw the first bolt 6 into the third screw hole 5 and the fourth screw hole 7 simultaneously, and screw the second bolt 18 into the first screw hole 2, the second screw hole 3, the fifth screw hole 9, and the sixth screw hole 17 simultaneously, and then pour cement mortar into the cement mortar groove 14 through the pouring hole 13.

[0029] During use, the staircase body 15 is limited by the reinforcing insertion block 16, which can prevent the lower end of the staircase body 15 from being stressed and tilting up from above the platform 1. Moreover, the reinforcing insertion block 16 is inserted into the platform 1, which can prevent the staircase body 15 from being stressed and sliding horizontally above the platform 1, effectively improving the stability.

[0030] And during use, even if the first bolt 6 falls off, by fixing the reinforcing insertion block 16 with the second bolt 18, the separation of the staircase body 15 and the platform 1 can still be prevented, improving the fixing effect.

[0031] At the same time, a cement mortar layer is formed between the platform 1 and the staircase body 15, which can firmly connect the platform 1 and the staircase body 15, thereby further improving the connection effect between the platform 1 and the staircase body 15.

[0032] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A connecting structure for the lower end of an assembled building installation support staircase, comprising a platform (1), a staircase body (15), and a reinforcement insert block (16), characterized in that: One end of the top of the platform (1) is provided with a staircase body (15). One end of the platform (1) close to the staircase body (15) is provided with a slot (4). One end of the staircase body (15) close to the platform (1) is provided with a mounting groove (10). A connecting block (11) is installed inside the mounting groove (10). One end of the connecting block (11) close to the slot (4) is installed with a reinforcing plug (16). A sixth screw hole (17) is arranged inside the reinforcing plug (16). A first screw hole (2) is arranged on the top of the platform (1). A guiding block (8) is installed on the top of the reinforcing plug (16).

2. The connecting structure at the lower end of the prefabricated building installation support staircase according to claim 1, characterized in that: One end of the top of the platform (1) away from the staircase body (15) is provided with a fourth screw hole (7). The fourth screw hole (7) communicates with the slot (4). A first bolt (6) is threadedly installed inside the fourth screw hole (7).

3. The connecting structure for the lower end of the prefabricated building installation support staircase according to claim 1, characterized in that: One end of the top of the reinforcing plug (16) close to the slot (4) is provided with a third screw hole (5).

4. The connecting structure at the lower end of the assembled building installation support staircase according to claim 1, characterized in that: The bottom of the staircase body (15) is provided with a second screw hole (3). The second screw hole (3) communicates with the mounting groove (10). The top of the staircase body (15) is provided with a fifth screw hole (9). The fifth screw hole (9) communicates with the mounting groove (10). A second bolt (18) is threadedly installed inside the fifth screw hole (9).

5. The connecting structure at the lower end of the assembled building installation support staircase according to claim 1, characterized in that: One end of the connecting block (11) away from the reinforcing plug (16) is installed with a spring (12). One end of the spring (12) away from the connecting block (11) is connected to the staircase body (15).

6. The connecting structure at the lower end of the prefabricated building installation support staircase according to claim 1, wherein: The bottom of the staircase body (15) is provided with a cement mortar groove (14). The top of the staircase body (15) is provided with a pouring hole (13). The pouring hole (13) communicates with the cement mortar groove (14).

7. The connecting structure at the lower end of the prefabricated building installation support staircase according to claim 1, characterized in that: A guiding groove (19) is arranged on the top of the mounting groove (10).

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