Anti-seismic assembly type prefabricated stair structure

Abstract

The utility model discloses an anti-seismic assembly type prefabricated stair structure which comprises a wall plate, two obliquely symmetrical connecting tables are fixedly connected to the inner side of the wall plate, a stair body is connected between the two connecting tables, a guide plate is fixed to the top faces of the connecting tables through first long rod bolts, the inner side of the guide plate is communicated with an air bag, and the tail end of the air bag abuts against a fixing block. The fixing block is connected with the connecting table through a second long rod bolt, the fixing block is fixedly connected with the stair body, the connecting table penetrates through the T-shaped groove, the T-shaped groove is internally and movably connected with the T-shaped block, and the T-shaped block is fixedly connected with the stair body. By arranging the air bag, the guide plate, the second limiting plate, the second long rod bolt, the first limiting plate and the first long rod bolt, the stair body and the connecting table are installed and fixed, so that the tensile property of the stair body is improved, the damping effect of the stair body is improved, and the use safety of the stair body is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building engineering, in particular to an earthquake-resistant assembled prefabricated staircase structure. Background Art

[0002] With the development of the construction industry, prefabricated buildings have been widely recognized. Prefabricated buildings refer to buildings that transfer a large number of on-site operations in traditional construction methods to factories, where building components and accessories (such as floor slabs, wall panels, stairs, balconies, etc.) are processed and manufactured in factories, transported to construction sites, and assembled and installed on site through reliable connection methods.

[0003] Prefabricated stairs are one of the commonly used components in prefabricated buildings. The prefabricated components of prefabricated stairs are mainly prefabricated concrete steps, platform plates and supporting structures. The main support methods of stairs are wall-bearing, cantilever stepping and beam-bearing. It has the advantages of high efficiency, fast construction speed and high quality controllability. When installing prefabricated stairs, the upper and lower landings are mostly fixedly connected to the prefabricated stairs. However, due to the mechanical properties of concrete that is not tensile but compressive, it is extremely unsafe, and the seismic resistance between the prefabricated stairs and landings is very poor. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes an earthquake-resistant assembled prefabricated staircase structure.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an earthquake-resistant assembled prefabricated staircase structure, including a wall panel, the inner side of which is fixedly connected to two obliquely symmetrical connecting platforms, a staircase main body is commonly connected between the two connecting platforms, a guide plate is fixed to the top surface of the connecting platform by a first long rod bolt, the inner side of the guide plate is connected to an air bag, the end of the air bag abuts a fixed block, the fixed block is connected to the connecting platform by a second long rod bolt, the fixed block is fixedly connected to the staircase main body, the connecting platform passes through a T-shaped slot, a T-shaped block is movably connected in the T-shaped slot, and the T-shaped block is fixedly connected to the staircase main body.

[0006] As a further description of the above technical solution: a first groove is opened on the outer side of the connecting platform, a first limit plate is arranged in the first groove, the first limit plate is fixedly connected to the guide plate, a first threaded groove is opened horizontally in the first groove, a first countersunk hole is horizontally passed through the outside of the first limit plate, the first long rod bolt is sleeved in the first countersunk hole, and the end extends into the first threaded groove.

[0007] As a further description of the above technical solution: a second groove is opened on the outer side of the connecting platform, a second limit plate is arranged in the second groove, the second limit plate is movably connected to the fixed block, a second threaded groove is opened horizontally in the second groove, the second limit plate passes through the second countersunk hole horizontally, the second long rod bolt is sleeved in the second countersunk hole, and the end extends into the second threaded groove.

[0008] As a further description of the above technical solution: a sliding groove is horizontally opened on the top surface of the second limiting plate, and two mirror-symmetrical springs are horizontally fixed in the sliding groove. A sliding block is fixed between the two springs, and the sliding block is slidably connected in the sliding groove, and the sliding block is fixed on the bottom surface of the fixed block.

[0009] As a further description of the above technical solution: a blind hole is horizontally opened on the outer side of the guide plate, an air valve is horizontally connected in the blind hole, an L-shaped air passage connected to the air valve is opened in the guide plate, the end of the L-shaped air passage is connected to a hard air pipe, the outside of the hard air pipe is fixedly sleeved with an iron plate, the iron plate is arranged in the airbag, and the guide plate is connected to the airbag through the hard air pipe.

[0010] As a further description of the above technical solution: the two connecting platforms are connected to the stair main body in the same way, and the connecting structure is diagonally symmetrical.

[0011] The utility model has the following beneficial effects:

[0012] Compared with the prior art, the seismic-resistant assembled prefabricated staircase structure improves the tensile strength of the staircase main body, further improves the shock-absorbing effect of the staircase main body, and improves the safety of use of the staircase main body by arranging an air bag and a guide plate connected to the air bag at the installation location of the staircase main body and the connecting platform, movably connecting a second limit plate to the bottom surface of the guide plate, and installing and fixing the second limit plate to the connecting platform through a second long rod bolt, and installing and fixing the guide plate to the connecting platform through the first limit plate and the first long rod bolt. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a three-dimensional diagram of the overall structure of the earthquake-resistant assembled prefabricated staircase structure proposed by the utility model;

[0014] Figure 2 The utility model provides a seismic resistant assembled prefabricated staircase structure. Figure 1 A magnified view of the structure at center A;

[0015] Figure 3 A top-sectional view of the connection between the guide plate and the airbag of the earthquake-resistant assembled prefabricated staircase structure proposed by the utility model;

[0016] Figure 4This is a main cross-sectional view of the connection between the fixed block and the second limiting plate of the earthquake-resistant assembled prefabricated staircase structure proposed by the utility model.

[0017] Legend:

[0018] 1. Wall panel; 2. Stair body; 3. Fixed block; 4. Connecting platform; 5. Air bag; 6. Guide plate; 7. First groove; 8. First countersunk hole; 9. First long-rod bolt; 10. First limit plate; 11. Air valve; 12. Blind hole; 13. Second groove; 14. Second limit plate; 15. Second countersunk hole; 16. Second long-rod bolt; 17. T-slot; 18. T-block; 19. Iron plate; 20. Hard air pipe; 21. L-shaped airway; 22. Slide groove; 23. Spring; 24. Slider. DETAILED DESCRIPTION

[0019] 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. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Reference Figures 1 to 4 The utility model provides a seismic resistant assembled prefabricated staircase structure: comprising a wall panel 1, two obliquely symmetrical connecting platforms 4 are fixedly connected to the inner side of the wall panel 1, a staircase body 2 is commonly connected between the two connecting platforms 4, a guide plate 6 is fixed to the top surface of the connecting platform 4 through a first long rod bolt 9, the inner side of the guide plate 6 is connected to the air bag 5, a blind hole 12 is horizontally provided on the outer side of the guide plate 6, an air valve 11 is horizontally connected in the blind hole 12, an L-shaped air passage 21 connected to the air valve 11 is provided in the guide plate 6, the end of the L-shaped air passage 21 is connected to a hard air pipe 20, and the hard air pipe 20 is connected to the hard air pipe 20. The outside of the tube 20 is fixedly sleeved with an iron plate 19, which is arranged in the airbag 5. The guide plate 6 is connected to the airbag 5 through the hard air tube 20. The end of the airbag 5 abuts against the fixed block 3. The fixed block 3 is connected to the connecting platform 4 through the second long rod bolt 16. The fixed block 3 is fixedly connected to the staircase body 2. The connecting platform 4 passes through the T-shaped slot 17. The T-shaped slot 17 is movably connected to the T-shaped block 18. The T-shaped block 18 is fixedly connected to the staircase body 2. The two connecting platforms 4 are connected to the staircase body 2 in the same way, and the connection structure is diagonally symmetrical.

[0021] A first groove 7 is provided on the outer side of the connecting platform 4, and a first limiting plate 10 is provided in the first groove 7. The first limiting plate 10 is fixedly connected to the guide plate 6, and a first threaded groove is provided horizontally in the first groove 7. The outer side of the first limiting plate 10 horizontally passes through the first countersunk hole 8, and the first long rod bolt 9 is sleeved in the first countersunk hole 8, and the end thereof extends into the first threaded groove; a second groove 13 is provided on the outer side of the connecting platform 4, and a second limiting plate 14 is provided in the second groove 13. The second limiting plate 14 is movably connected to the fixed block 3, and a sliding groove 22 is horizontally provided on the top surface of the second limiting plate 14. Two springs 23 with left and right mirror symmetry are horizontally fixed in the sliding groove 22, and a slider 24 is fixed between the two springs 23. The slider 24 is slidably connected in the sliding groove 22, and the slider 24 is fixed to the bottom surface of the fixed block 3. A second threaded groove is provided horizontally in the second groove 13, and the second limiting plate horizontally passes through the second countersunk hole 15, and the second long rod bolt 16 is sleeved in the second countersunk hole 15, and the end thereof extends into the second threaded groove.

[0022] By arranging an airbag 5 and a guide plate 6 connected to the airbag 5 at the installation position of the stair main body 2 and the connecting platform 4, a second limit plate 14 is movably connected to the bottom surface of the guide plate 6, and the second limit plate 14 is fixedly installed with the connecting platform 4 through the second long rod bolt 16, and the guide plate 6 is fixedly installed with the connecting platform 4 through the first limit plate 10 and the first long rod bolt 9, the tensile performance of the stair main body 2 is improved, and then the shock absorption effect of the stair main body 2 is improved, and the use safety of the stair main body 2 is improved;

[0023] Working principle: When assembling the staircase body 2, first align the T-shaped blocks 18 at both ends of the staircase body 2 with the two T-shaped slots 17 on the two connecting platforms 4 for installation, so that the T-shaped blocks 18 are inserted into the T-shaped slots 17, and the second limit plate 14 is installed in the second groove 13, and then the staircase body 2 and the connecting platform 4 are fixed by the second long rod bolt 16, and then the guide plate 6 with the air bag 5 is installed between the connecting platform 4 and the fixing block 3, so that the first limit block is installed in the first groove 7, and it is fixed by the first long rod bolt 9. It is fixed on the connecting platform 4. At this time, the airbag 5 is in a deflated state. Then, the inflation device is used to inflate the two airbags 5 at the same time through the air valve 11, the L-shaped airway 21 and the hard air tube 20, so that the airbags 5 expand. After the airbags 5 expand, they will abut against the fixed block 3. The two expanded airbags 5 will push the stair body 2 at the same time, so that after the airbags 5 are full, the stair body 2 is in the middle position. The softness and elasticity of the airbags 5 and the spring 23 are used to buffer the tension on the stair body 2, thereby optimizing the shock absorption of the stair body 2.

[0024] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can 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 should be included in the protection scope of the present invention.

Claims

1. An earthquake-resistant assembled prefabricated staircase structure, comprising a wall panel (1), the inner side of the wall panel (1) being fixedly connected to two obliquely symmetrical connecting platforms (4), the two connecting platforms (4) being connected to a staircase body (2), characterized in that: A guide plate (6) is fixed to the top surface of the connecting platform (4) via a first long rod bolt (9); the inner side of the guide plate (6) is connected to an air bag (5); the end of the air bag (5) abuts against a fixed block (3); the fixed block (3) is connected to the connecting platform (4) via a second long rod bolt (16); the fixed block (3) is fixedly connected to the staircase body (2); the connecting platform (4) passes through a T-shaped slot (17); a T-shaped block (18) is movably connected in the T-shaped slot (17); and the T-shaped block (18) is fixedly connected to the staircase body (2).

2. The seismic resistant prefabricated staircase structure according to claim 1 is characterized in that: A first groove (7) is provided on the outer side of the connecting platform (4), a first limiting plate (10) is provided in the first groove (7), the first limiting plate (10) is fixedly connected to the guide plate (6), a first thread groove is horizontally provided in the first groove (7), a first countersunk hole (8) is horizontally passed through the outer side of the first limiting plate (10), the first long rod bolt (9) is sleeved in the first countersunk hole (8), and the end thereof extends into the first thread groove.

3. The seismic resistant prefabricated staircase structure according to claim 1 is characterized in that: A second groove (13) is provided on the outer side of the connecting platform (4), a second limiting plate (14) is provided in the second groove (13), the second limiting plate (14) is movably connected to the fixing block (3), a second threaded groove is horizontally provided in the second groove (13), the second limiting plate horizontally penetrates the second countersunk hole (15), the second long rod bolt (16) is sleeved in the second countersunk hole (15), and the end thereof extends into the second threaded groove.

4. The seismic resistant prefabricated staircase structure according to claim 3 is characterized in that: A sliding groove (22) is transversely provided on the top surface of the second limiting plate (14), two springs (23) with mirror symmetry on the left and right are horizontally fixed in the sliding groove (22), a sliding block (24) is fixed between the two springs (23), the sliding block (24) is slidably connected in the sliding groove (22), and the sliding block (24) is fixed on the bottom surface of the fixed block (3).

5. The seismic resistant prefabricated staircase structure according to claim 1 is characterized in that: A blind hole (12) is horizontally provided on the outer side of the guide plate (6), and an air valve (11) is horizontally connected to the blind hole (12). An L-shaped air passage (21) connected to the air valve (11) is provided in the guide plate (6), and the end of the L-shaped air passage (21) is connected to a hard air pipe (20). The outside of the hard air pipe (20) is fixedly sleeved with an iron plate (19), and the iron plate (19) is arranged in the air bag (5). The guide plate (6) is connected to the air bag (5) through the hard air pipe (20).

6. The seismic resistant assembled prefabricated staircase structure according to claim 1 is characterized in that: The two connecting platforms (4) are connected to the staircase body (2) in the same manner, and the connection structure is diagonally symmetrical.

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