Fastening type light prefabricated stair board

Abstract

The utility model discloses a buckling type light prefabricated stair board which comprises a stair board body, an upper platform and a lower platform are arranged at the upper end and the lower end of the stair board body respectively, the end of the upper platform and the end of the lower platform are connected with an upper layer beam and a lower layer beam respectively, and a plurality of joint bars distributed at equal intervals are arranged on the two sides of the upper surface of the stair board body in the length direction of the stair board body. A step is arranged between every two opposite joint bars, and the upper layer beam is of a telescopic structure. Through the arrangement of the telescopic upper-layer beam and the telescopic lower-layer beam, the distance between the upper-layer beam and the lower-layer beam can be conveniently and finely adjusted, so that the stair plate can be conveniently and quickly placed between the upper-layer beam and the lower-layer beam, the supporting plate can be tightly contacted with the end part of the stair plate, and the installation difficulty of the prefabricated stair plate is greatly reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of assembled buildings, and in particular relates to a buckled lightweight prefabricated staircase slab. Background Art

[0002] In recent years, prefabricated buildings have been promoted. Prefabricated components are produced in factories and assembled on site, and fine decoration, integration and integrated design are promoted to reduce the impact of weather on on-site construction, reduce the number of workers on site, minimize the pollution of on-site construction and domestic waste, and improve the quality of the entire building product and living experience.

[0003] During installation of currently available prefabricated stair treads, the spacing between the upper and lower platform beams cannot be adjusted due to the fixed structure of the upper and lower platform beams, making it difficult to quickly place the stair treads between the upper and lower platform beams. In addition, the stair treads and steps of existing prefabricated stair treads are mostly integrated structures. Due to the diversity of buildings, the specifications and sizes of prefabricated stairs vary, resulting in a high cost for mold sharing required in the preparation process. Utility Model Content

[0004] The utility model aims to provide a buckled lightweight prefabricated stair slab to solve the technical problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the specific technical scheme of the utility model is as follows: a buckled lightweight prefabricated stair tread, comprising a stair tread, wherein an upper platform and a lower platform are respectively arranged at the upper and lower ends of the stair tread, and the ends of the upper platform and the lower platform are respectively connected to an upper beam and a lower beam, and a plurality of equally spaced dowel bars are arranged on both sides of the upper surface of the stair tread along its length direction, and a step is arranged between each two opposite dowel bars, and the upper beam is a telescopic structure, and the upper beam comprises a support platform, and a receiving cavity is arranged at the end of the support platform, and a movable plate is slidably connected in the receiving cavity, and the end of the movable plate is arranged A support plate is provided, a supporting plate in contact with the bottom of the upper platform is provided at the bottom of the side wall of the support plate, and a screw is provided in the middle part of the inner cavity of the accommodating cavity, the end of the screw extends to the outside of the support platform and is provided with a hexagonal block, and the screw is rotatably connected to the support platform through a bearing, a threaded cavity threadably connected to the screw is provided in the middle part of the inner cavity of the movable plate, a slot is provided at the end of the upper platform, and a plug plate corresponding to the slot is provided on the side wall of the support plate, the upper platform and the plug plate are fixedly connected by a clamp, and the connection structure between the lower platform and the lower beam is the same as the connection structure between the upper platform and the upper beam.

[0006] Preferably, the surface of the step is provided with two symmetrically distributed first insertion holes, and the first insertion holes are distributed corresponding to the inserted bars.

[0007] Preferably, a plurality of equally spaced slots are provided in the middle of the surface of the ladder plate along its length direction, and blocks corresponding to the slots are provided at the bottom of the step, and the size of the blocks matches the size of the slots.

[0008] Preferably, the upper surface of the support plate is provided with a plurality of equally spaced limit grooves along its length direction, and the bottom of the upper platform is provided with a plurality of limit blocks distributed one-to-one with the limit grooves, and the size of the limit blocks is consistent with the size of the limit grooves.

[0009] Preferably, the side walls of the support platform are provided with sliding holes at the four corners of the accommodating cavity, and the back of the support plate is provided with sliding rods corresponding to the sliding holes at the four corners, and the sliding rods are slidably connected to the sliding holes.

[0010] Preferably, the card includes a connecting plate, plug rods are provided on both sides of the bottom of the connecting plate, a groove is provided on the upper surface of the upper platform, two second plug holes are provided on the surface of the groove and the surface of the plug plate, the plug rods and the second plug holes are distributed correspondingly, and the size of the plug rods matches the size of the second plug holes, and the connecting plate is in the groove.

[0011] The buckled lightweight prefabricated stair slab of the utility model has the following advantages:

[0012] 1. The utility model facilitates fine adjustment of the spacing between the upper beam and the lower beam by setting a telescopic upper beam and a lower beam, so that the staircase can be quickly placed between the upper beam and the lower beam, and the support plate can be in close contact with the end of the staircase, thereby greatly reducing the difficulty of installing the prefabricated staircase.

[0013] 2. Through the cooperation between the first insertion hole on the step and the dowel on the stair slab, the prefabricated stair slab is a stair tread that is prefabricated separately from the stair tread. The step manufacturing mold can be adjusted arbitrarily, and the stair slab is also easier to manufacture, and the size can be adjusted arbitrarily, thereby improving the utilization rate of the mold and reducing the mold amortization cost. In addition, when a step is damaged, only the step can be replaced.

[0014] 3. Through the cooperation between the limit block and the limit groove, the upper platform is connected to the upper beam, and the lower platform is connected to the lower beam, which plays a role of left and right limiting the ladder board, making the ladder board and the upper beam and the lower beam connected more tightly. When the plug plate is inserted into the slot, the plug rods on both sides of the bottom of the connecting plate are respectively inserted into the corresponding second plug holes. At this time, the connecting plate is in the groove, so that the plug plate, the support plate and the ladder board form a whole, which can effectively prevent the ladder board from sliding off the support plate, and further improve the stability of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is an exploded view of the steps and stair treads in the present invention;

[0018] Figure 3 It is a structural schematic diagram of the step in the utility model;

[0019] Figure 4 This is an exploded view of the support platform and the support plate in the utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the ladder plate in the utility model;

[0021] Explanation of the markings in the figure: 1. Ladder; 2. Step; 3. Upper beam; 4. Lower beam; 5. Clamp; 6. First plug hole; 7. Insert bar; 8. Slot; 9. Upper platform; 10. Lower platform; 11. Groove; 12. Slot; 13. Limit block; 14. Block; 15. Support platform; 16. Accommodating cavity; 17. Slide hole; 18. Movable plate; 19. Screw; 20. Hexagonal block; 21. Support plate; 22. Slide rod; 23. Support plate; 24. Limit slot; 25. Insert plate; 26. Second plug hole; 27. Connecting plate; 28. Insert rod. DETAILED DESCRIPTION

[0022] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0023] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0025] In the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0026] The disclosure below provides many different embodiments or examples for realizing different structures of the embodiments of the present utility model. In order to simplify the disclosure of the embodiments of the present utility model, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the embodiments of the present utility model. In addition, the embodiments of the present utility model can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0027] In order to better understand the purpose, structure and function of the utility model, the following is a further detailed description of a buckled lightweight prefabricated stair slab of the utility model in conjunction with the accompanying drawings.

[0028] like Figure 1-5As shown, a buckled lightweight prefabricated stair tread of the utility model comprises a stair tread 1, an upper platform 9 and a lower platform 10 are respectively provided at the upper and lower ends of the stair tread 1, and the ends of the upper platform 9 and the lower platform 10 are respectively connected to the upper beam 3 and the lower beam 4, a plurality of equally spaced dowel bars 7 are provided on both sides of the upper surface of the stair tread 1 along its length direction, a step 2 is provided between each two opposite dowel bars 7, and two symmetrically distributed first plug holes 6 are provided on the surface of the step 2, and the first plug holes 6 are distributed correspondingly to the dowel bars 7, through the cooperation between the first plug holes 6 on the step 2 and the dowel bars 7 on the stair tread 1, the prefabricated stair tread is to prefabricate the steps 2 of the stairs and the stair tread 1 separately, the manufacturing mold of the step 2 can be adjusted arbitrarily, and the manufacturing of the stair tread 1 is also easier, and the size can be adjusted arbitrarily, thereby improving the utilization rate of the mold and reducing the mold amortization cost. In addition, when a certain step 2 is damaged, only the step 2 can be replaced. A plurality of equally spaced slots 8 are provided in the middle portion of the surface of the ladder plate 1 along its length direction, and a card block 14 corresponding to the slots 8 is provided at the bottom of the step 2. The size of the card block 14 matches the size of the slot 8. Through the cooperation between the card block 14 and the slot 8, the connection between the step 2 and the ladder plate 1 is made more firmly and tightly.

[0029] The upper beam 3 is a telescopic structure, and the upper beam 3 includes a support platform 15. A accommodating cavity 16 is provided at the end of the support platform 15. A movable plate 18 is slidably connected in the accommodating cavity 16. A support plate 21 is provided at the end of the movable plate 18. A supporting plate 23 in contact with the bottom of the upper platform 9 is provided at the bottom of the side wall of the supporting plate 21. The upper surface of the supporting plate 23 is provided with a plurality of equally spaced limiting grooves 24 along its length direction. A plurality of limiting blocks 13 corresponding to the limiting grooves 24 are provided at the bottom of the upper platform 9, and the size of the limiting blocks 13 is consistent with the size of the limiting grooves 24. Through the cooperation between the limiting blocks 13 and the limiting grooves 24, the upper platform 9 and the upper beam 3, and the lower platform 10 and the lower beam 4 are connected. When the ladder plate 1 is limited to the left and right, the ladder plate 1 is more tightly connected to the upper beam 3 and the lower beam 4. A screw rod 19 is arranged in the middle part of the inner cavity of the accommodating cavity 16, and the end of the screw rod 19 extends to the outside of the support platform 15 and is provided with a hexagonal block 20, and the screw rod 19 is rotatably connected to the support platform 15 through a bearing, and a threaded cavity threadedly connected to the screw rod 19 is arranged in the middle part of the inner cavity of the movable plate 18, and sliding holes 17 are arranged at the four corners of the side walls of the support platform 15, and sliding rods 22 corresponding to the sliding holes 17 are arranged at the four corners of the back of the support plate 21, and the sliding rods 22 are slidably connected to the sliding holes 17. Through the cooperation between the sliding holes 17 and the sliding rods 22, the support plate 21 is more stable when moving. A slot 12 is provided at the end of the upper platform 9, and a plug plate 25 corresponding to the slot 12 is provided on the side wall of the support plate 21. The upper platform 9 and the plug plate 25 are fixedly connected by a clamp 5, and the connection structure between the lower platform 10 and the lower beam 4 is the same as the connection structure between the upper platform 9 and the upper beam 3. The screw rod 19 is rotated by rotating the hexagonal block 20. During assembly, the screw rod 19 is rotated to make the support plate 21 approach the support platform 15. At this time, the distance between the upper beam 3 and the lower beam 4 is large, which facilitates the placement of the ladder board 1. After the ladder board 1 is placed on the upper beam 3 and the lower beam 4, the screw rod 19 is rotated by rotating the hexagonal block 20, so that the movable plate 18 pushes the support plate 21 to move toward the ladder board 1, so that the support plate 21 is in close contact with the end of the ladder board 1, thereby greatly reducing the difficulty of installing the prefabricated stair board.

[0030] The clamp 5 includes a connecting plate 27, and rods 28 are provided on both sides of the bottom of the connecting plate 27. A groove 11 is provided on the upper surface of the upper platform 9. Two second plug holes 26 are provided on the surface of the groove 11 and the surface of the plug plate 25. The plug rods 28 are distributed correspondingly to the second plug holes 26, and the size of the plug rods 28 matches the size of the second plug holes 26. The connecting plate 27 is in the groove 11. When the plug plate 25 is inserted into the slot 12, the plug rods 28 on both sides of the bottom of the connecting plate 27 are respectively inserted into the corresponding second plug holes 26. At this time, the connecting plate 27 is in the groove 11, so that the plug plate 25 forms a whole with the support plate 21 and the ladder plate 1, which can effectively prevent the ladder plate 1 from sliding off the support plate 23, further improving the stability of the structure.

[0031] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A buckled lightweight prefabricated stair tread, characterized in that: The ladder comprises a ladder plate (1), wherein an upper platform (9) and a lower platform (10) are respectively arranged at the upper and lower ends of the ladder plate (1), and the ends of the upper platform (9) and the lower platform (10) are respectively connected to an upper beam (3) and a lower beam (4), and a plurality of dowel bars (7) distributed at equal intervals are arranged on both sides of the upper surface of the ladder plate (1) along its length direction, and a step (2) is arranged between each pair of the dowel bars (7); wherein: The upper beam (3) is a telescopic structure, and the upper beam (3) comprises a support platform (15), an end of the support platform (15) is provided with a receiving cavity (16), a movable plate (18) is slidably connected in the receiving cavity (16), a support plate (21) is provided at the end of the movable plate (18), a supporting plate (23) in contact with the bottom of the upper platform (9) is provided at the bottom of the side wall of the support plate (21), and a screw rod (19) is provided in the middle of the inner cavity of the receiving cavity (16), and the end of the screw rod (19) extends to the outside of the support platform (15) and is provided with a hexagonal block (20), and the screw rod (19) is rotatably connected to the support platform (15) through a bearing, a threaded cavity threadedly connected to the screw rod (19) is provided in the middle part of the inner cavity of the movable plate (18), a slot (12) is provided at the end of the upper platform (9), and a plug plate (25) distributed corresponding to the slot (12) is provided on the side wall of the support plate (21), the upper platform (9) and the plug plate (25) are fixedly connected by a clamp (5), and the connection structure between the lower platform (10) and the lower beam (4) is the same as the connection structure between the upper platform (9) and the upper beam (3).

2. The buckled lightweight prefabricated stair slab according to claim 1, characterized in that: The surface of the step (2) is provided with two symmetrically distributed first insertion holes (6), and the first insertion holes (6) are distributed correspondingly to the insertion bars (7).

3. The buckled lightweight prefabricated stair slab according to claim 1 is characterized in that: A plurality of equally spaced slots (8) are provided at the middle of the surface of the ladder plate (1) along its length direction, and a block (14) corresponding to the slots (8) is provided at the bottom of the step (2), and the size of the block (14) matches the size of the slots (8).

4. The buckled lightweight prefabricated stair slab according to claim 1 is characterized by: The upper surface of the support plate (23) is provided with a plurality of equally spaced limiting grooves (24) along its length direction, and the bottom of the upper platform (9) is provided with a plurality of limiting blocks (13) distributed one-to-one with the limiting grooves (24), and the size of the limiting blocks (13) is consistent with the size of the limiting grooves (24).

5. The buckled lightweight prefabricated stair slab according to claim 1 is characterized by: The side walls of the support platform (15) are provided with sliding holes (17) at the four corners of the accommodating cavity (16), and the back of the support plate (21) is provided with sliding rods (22) distributed corresponding to the sliding holes (17) at the four corners, and the sliding rods (22) are slidably connected to the sliding holes (17).

6. The buckled lightweight prefabricated stair slab according to claim 1, characterized in that: The clamp (5) comprises a connecting plate (27), and both sides of the bottom of the connecting plate (27) are provided with plug rods (28). The upper surface of the upper platform (9) is provided with a groove (11), and the surface of the groove (11) and the surface of the plug plate (25) are provided with two second plug holes (26). The plug rods (28) are distributed correspondingly to the second plug holes (26), and the size of the plug rods (28) matches the size of the second plug holes (26), and the connecting plate (27) is located in the groove (11).

Images