Stair prefabricated part

Abstract

The utility model relates to the technical field of concrete prefabricated parts, in particular to a stair prefabricated part which comprises a bearing plate, a first groove is formed in the upper surface of the bearing plate, and a fixing pin is fixedly installed on the bottom surface of the first groove. A vertical plate is installed in the first groove, a fourth groove is formed in the lower surface of the bottom of the vertical plate, a second groove is formed in the side wall of the vertical plate, a third groove is formed in the upper surface of the vertical plate, a transverse plate is installed above the vertical plate, and a connecting column is fixedly connected to the lower surface of the transverse plate. A linkage block is fixedly mounted on the lower surface of the connecting column, a driven block is mounted in the third groove, and a fifth groove is formed in the upper surface of the driven block. The stair prefabricated part is reasonable in structure, and the whole stair prefabricated part can be disassembled and assembled, so that the stair prefabricated part is more convenient to transport and lower in carrying difficulty.

Description

Technical Field

[0001] The utility model relates to the field of prefabricated concrete components, in particular to a prefabricated stair component. Background Art

[0002] Prefabricated staircase components are important components that vertically connect different floors. They are prefabricated in factories according to unified standards and transported directly to the site for installation. In order to ensure the structural strength of the stairs, they are mostly cast in one piece using concrete.

[0003] Existing prefabricated stair components are usually formed in one piece by pouring concrete. This method causes the prefabricated stair components to occupy a large space and be inconvenient to transport. In addition, due to the heavy weight and irregular shape of the prefabricated stair components, it is also very difficult to transport them after loading and unloading, which is not conducive to the installation of the prefabricated stair components. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a prefabricated staircase component.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a prefabricated staircase component, comprising a load-bearing plate, the upper surface of the load-bearing plate is provided with a first groove, the bottom surface of the first groove is fixedly installed with a fixing pin, a vertical plate is installed inside the first groove, a fourth groove is provided on the bottom lower surface of the vertical plate, the fixing pin is located inside the fourth groove, a second groove is provided on the side wall of the vertical plate, a third groove is provided on the upper surface of the vertical plate, a transverse plate is installed above the vertical plate, a connecting column is fixedly connected to the lower surface of the transverse plate, the number of the connecting columns is multiple, and a linkage block is fixedly installed on the lower surfaces of the multiple connecting columns, a driven block is installed inside the third groove, a fifth groove is provided on the upper surface of the driven block, a seventh groove is provided inside the driven block, the fifth groove and the seventh groove are connected, the linkage block is located in the seventh groove, and the side wall of the driven block is provided with a sixth groove, and a spring is fixedly installed in the sixth groove.

[0006] As a further description of the above technical solution:

[0007] The upper surface of the transverse plate is provided with anti-skid grooves, and the number of the anti-skid grooves is multiple.

[0008] As a further description of the above technical solution:

[0009] A second through hole is formed on the upper end surface of the transverse plate at the top, and the transverse plate is bolted to the load-bearing plate via a second stud, and the second stud is located inside the second through hole.

[0010] As a further description of the above technical solution:

[0011] An upturned ear is arranged below one end of the load-bearing plate, and a first sliding isolation layer is arranged at the joint between the upturned ear and the load-bearing plate.

[0012] As a further description of the above technical solution:

[0013] A first through hole is formed on the upper surface of one end of the load-bearing plate close to the upward raised ear, and the number of the first through holes is multiple.

[0014] As a further description of the above technical solution:

[0015] A first stud is fixedly connected to the upper surface of the raised ear, there are a plurality of first studs, the first studs are located inside the first through hole, and the raised ear is connected to the load-bearing plate via the first stud bolts.

[0016] As a further description of the above technical solution:

[0017] A lower raised ear is arranged below the other end of the load-bearing plate, and a second sliding isolation layer is arranged at the joint between the lower raised ear and the load-bearing plate.

[0018] As a further description of the above technical solution:

[0019] A third through hole is formed on the upper surface of one end of the load-bearing plate close to the lower raised ear, and the number of the third through holes is multiple.

[0020] As a further description of the above technical solution:

[0021] A third stud is fixedly connected to the upper surface of the lower raised ear, the number of the third stud is multiple, the third stud is located inside the third through hole, and the lower raised ear is bolted to the load-bearing plate via the third stud.

[0022] The utility model has the following beneficial effects:

[0023] Compared with the prior art, the prefabricated staircase component includes a vertical plate, a transverse plate, a connecting column, a first groove, a fixing pin, a follower block, a third groove, a spring, a second stud and a load-bearing plate. During installation, the vertical plate is inserted into the first groove, so that the fixing pin is inserted into the fourth groove, and then the follower block is aligned with the position of the third groove, and the transverse plate is pressed downward. At this time, under the action of external force, the two adjacent follower blocks fit each other, and after moving to the bottom of the third groove, the two adjacent follower blocks are separated under the action of the spring, and the transverse plate is successfully installed. Then the vertical plate and the transverse plate are installed in turn. Finally, the transverse plate is connected to the load-bearing plate by the second stud bolts. At this time, the prefabricated staircase component is assembled. Compared with the existing prefabricated stair components which are mostly cast in one piece of concrete, the prefabricated stair components occupy a large space and are inconvenient to transport. In addition, due to the heavy weight and irregular shape of the prefabricated stair components, it is also very difficult to carry them after loading and unloading, which is not conducive to the installation of the prefabricated stair components. The prefabricated stair components can be divided into multiple small parts, which can improve the space utilization of the prefabricated stair components during transportation and make transportation more convenient. At the same time, multiple components are more convenient to carry after loading and unloading.

[0024] Compared with the prior art, the stair prefabricated component is composed of a vertical plate, a horizontal plate, a connecting column, a first groove, a fixing pin, a driven block, a third groove, a spring, a second stud and a load-bearing plate. When disassembling, the bolt at the second stud is first removed, and then the horizontal plate is pulled out. Under the action of external force, two adjacent driven blocks fit each other and are removed from the third groove. At this time, the horizontal plate is disassembled, and then the vertical plate and the horizontal plate are removed in sequence. At this time, the disassembly operation is completed. Compared with the existing stair prefabricated components, which are heavy and irregular in shape, and are also very difficult to carry after loading and unloading, the stair prefabricated component can be disassembled as a whole, which is more convenient in transportation. At the same time, it is more convenient to carry after disassembly during loading and unloading.

[0025] Compared with the prior art, the prefabricated stair component, through the transverse plate and the anti-skid groove, can reduce the probability of pedestrians slipping and falling when the prefabricated stair component is in use, thereby increasing the safety effect of the prefabricated stair component. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of a prefabricated staircase component proposed by the utility model;

[0027] Figure 2 This is an enlarged structural diagram of the A portion of a prefabricated staircase component proposed by the utility model;

[0028] Figure 3 A partial structural schematic diagram of a prefabricated staircase component proposed by the utility model;

[0029] Figure 4This is a schematic diagram of a vertical plate structure of a prefabricated staircase component proposed by the utility model;

[0030] Figure 5 This is a schematic diagram of the cross-sectional structure of a vertical plate of a prefabricated staircase component proposed by the utility model;

[0031] Figure 6 This is a schematic diagram of a transverse plate structure of a prefabricated staircase component proposed by the utility model;

[0032] Figure 7 The present invention is a cross-sectional view of some components of a prefabricated staircase component proposed by the present invention.

[0033] Legend:

[0034] 1. Load-bearing plate; 2. Vertical plate; 3. First groove; 4. Second groove; 5. Third groove; 6. Fourth groove; 7. Fixed pin; 8. Horizontal plate; 9. Connecting column; 10. Follower block; 11. Fifth groove; 12. Linkage block; 13. Sixth groove; 14. Spring; 15. Seventh groove; 16. Anti-skid groove; 17. Upper ear; 18. First sliding isolation layer; 19. Third stud; 20. First through hole; 21. First stud; 22. Second through hole; 23. Second stud; 24. Lower ear; 25. Second sliding isolation layer; 26. Third through hole. DETAILED DESCRIPTION

[0035] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments to help understand the content of the present invention. The methods used in the present invention are all conventional methods unless otherwise specified; the raw materials and devices used are all conventional commercial products unless otherwise specified.

[0036] Reference Figure 1-7 The utility model provides a prefabricated staircase component, including a load-bearing plate 1, a first groove 3 is opened on the upper surface of the load-bearing plate 1, a fixing pin 7 is fixedly installed on the bottom surface of the first groove 3, a vertical plate 2 is installed inside the first groove 3, a fourth groove 6 is opened on the bottom lower surface of the vertical plate 2, the fixing pin 7 is located inside the fourth groove 6, and the fixing pin 7 can fix the vertical plate 2. A second groove 4 is provided on the side wall of the vertical plate 2, a third groove 5 is provided on the upper surface of the vertical plate 2, a transverse plate 8 is installed above the vertical plate 2, a connecting column 9 is fixedly connected to the lower surface of the transverse plate 8, and there are multiple connecting columns 9. A linkage block 12 is fixedly installed on the lower surfaces of the multiple connecting columns 9, a driven block 10 is installed inside the third groove 5, a fifth groove 11 is provided on the upper surface of the driven block 10, a seventh groove 15 is provided inside the driven block 10, the fifth groove 11 and the seventh groove 15 are connected, the linkage block 12 is located in the seventh groove 15, a sixth groove 13 is provided on the side wall of the driven block 10, and a spring 14 is fixedly installed in the sixth groove 13.

[0037] The upper surface of the transverse plate 8 is provided with anti-slip grooves 16, and the number of anti-slip grooves 16 is multiple. The anti-slip grooves can effectively prevent pedestrians from slipping. The upper end surface of the transverse plate 8 located at the top is provided with a second through hole 22. The transverse plate 8 is bolted to the load-bearing plate 1 through a second stud 23, and the second stud 23 is located inside the second through hole 22.

[0038] An upper ear 17 is provided below one end of the load-bearing plate 1, and a first sliding isolation layer 18 is provided at the joint between the upper ear 17 and the load-bearing plate 1. The first sliding isolation layer 18 is a sliding isolation material. A first through hole 20 is provided on the upper surface of one end of the load-bearing plate 1 close to the upper ear 17. There are multiple first through holes 20. A first stud 21 is fixedly connected to the upper surface of the upper ear 17. There are multiple first studs 21. The first studs 21 are located inside the first through hole 20. The upper ear 17 is bolted to the load-bearing plate 1 through the first stud 21.

[0039] A lower ear 24 is provided below the other end of the load-bearing plate 1, and a second sliding isolation layer 25 is provided at the joint between the lower ear 24 and the load-bearing plate 1. The second sliding isolation layer 25 is a sliding isolation material. A third through hole 26 is provided on the upper surface of one end of the load-bearing plate 1 close to the lower ear 24. The number of the third through holes 26 is multiple. A third stud 19 is fixedly connected to the upper surface of the lower ear 24. The number of the third stud 19 is multiple and the third stud 19 is located inside the third through hole 26. The lower ear 24 is bolted to the load-bearing plate 1 through the third stud 19.

[0040] Working principle:

[0041] During installation, first install the load-bearing plate 1 between the upper ear 17 and the lower ear 24, make the position of the first stud 21 correspond to the position of the first through hole 20, make the position of the third stud 19 correspond to the position of the third through hole 26, then insert the vertical plate into the first groove 3, so that the fixing pin 7 is inserted into the fourth groove 6, and then make the driven block 10 correspond to the position of the third groove 5, press the horizontal plate 8 downward, at this time, the two adjacent driven blocks 10 are attached to each other under the action of external force, and after moving to the bottom of the third groove 5, the two adjacent driven blocks 10 are separated under the action of the spring 14, and the horizontal plate 8 is successfully installed. Then install the vertical plate 2 and the horizontal plate 8 in sequence, and the last horizontal plate 8 is bolted to the load-bearing plate 1 through the second stud 23, and the prefabricated staircase components are assembled. During disassembly, first remove the bolts at the second stud 23, then pull out the transverse plate 8. Under the action of external force, the two adjacent driven blocks 10 fit each other and are removed from the third groove 5. At this time, the transverse plate 8 is disassembled. Then remove the vertical plate 2 and the transverse plate 8 in turn. At this time, the disassembly operation is completed.

[0042] In the description of the present invention, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inside", "outside", "back", "middle", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying 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 direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0043] However, what is described above is only a specific embodiment of the present invention and should not be used to limit the scope of implementation of the present invention. Therefore, the replacement of equivalent components, or equivalent changes and modifications made according to the scope of protection of the patent of the present invention should still fall within the scope covered by the claims of the present invention.

Claims

1. A prefabricated staircase component, comprising a load-bearing plate (1), characterized in that: The upper surface of the load-bearing plate (1) is provided with a first groove (3), the bottom surface of the first groove (3) is fixedly provided with a fixing pin (7), the interior of the first groove (3) is provided with a vertical plate (2), the bottom lower surface of the vertical plate (2) is provided with a fourth groove (6), the fixing pin (7) is located inside the fourth groove (6), the side wall of the vertical plate (2) is provided with a second groove (4), the upper surface of the vertical plate (2) is provided with a third groove (5), a transverse plate (8) is installed above the vertical plate (2), and the lower surface of the transverse plate (8) is fixedly connected with a connecting column (9) The number of the connecting columns (9) is multiple, and a linkage block (12) is fixedly installed on the lower surface of the multiple connecting columns (9), a driven block (10) is installed inside the third groove (5), a fifth groove (11) is opened on the upper surface of the driven block (10), a seventh groove (15) is opened inside the driven block (10), the fifth groove (11) and the seventh groove (15) are connected, the linkage block (12) is located in the seventh groove (15), and a sixth groove (13) is opened on the side wall of the driven block (10), and a spring (14) is fixedly installed in the sixth groove (13).

2. A prefabricated staircase component according to claim 1, characterized in that: The upper surface of the transverse plate (8) is provided with anti-slip grooves (16), and the number of the anti-slip grooves (16) is multiple.

3. The prefabricated staircase component according to claim 1, characterized in that: A second through hole (22) is provided on the upper end surface of the transverse plate (8) located at the top, and the transverse plate (8) is bolted to the load-bearing plate (1) via a second stud (23), and the second stud (23) is located inside the second through hole (22).

4. The prefabricated staircase component according to claim 1, characterized in that: An upturned ear (17) is provided below one end of the load-bearing plate (1), and a first sliding isolation layer (18) is provided at the joint between the upturned ear (17) and the load-bearing plate (1).

5. The prefabricated staircase component according to claim 4, characterized in that: A first through hole (20) is provided on the upper surface of one end of the load-bearing plate (1) close to the upper raised ear (17), and the number of the first through holes (20) is multiple.

6. The prefabricated staircase component according to claim 5, characterized in that: A first stud (21) is fixedly connected to the upper surface of the raised ear (17), the number of the first studs (21) is plural, the first studs (21) are located inside the first through hole (20), and the raised ear (17) is bolted to the load-bearing plate (1) via the first studs (21).

7. The prefabricated staircase component according to claim 1, characterized in that: A lower raised ear (24) is provided below the other end of the load-bearing plate (1), and a second sliding isolation layer (25) is provided at the joint between the lower raised ear (24) and the load-bearing plate (1).

8. The prefabricated staircase component according to claim 7, characterized in that: A third through hole (26) is provided on the upper surface of one end of the load-bearing plate (1) close to the lower raised ear (24), and the number of the third through holes (26) is multiple.

9. The prefabricated staircase component according to claim 8, characterized in that: The upper surface of the lower raised ear (24) is fixedly connected with a third stud (19), the number of the third studs (19) is plural, the third studs (19) are located inside the third through hole (26), and the lower raised ear (24) is bolted to the load-bearing plate (1) via the third studs (19).

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