Prefabricated stair structure

Abstract

The prefabricated stair structure comprises a supporting part and a stair part, the supporting part comprises an inclined plate, an upper fixing plate and a lower fixing plate, the upper fixing plate is located at the end, away from the lower fixing plate, of the supporting part, the supporting part is provided with a fixing protruding strip, and the stair part is provided with a fixing embedding groove; the fixing caulking groove is located in the end, close to the supporting part, of the step part, and the fixing protruding strip is embedded into the fixing caulking groove. The stair part and the supporting part are arranged, the stair part and the supporting part are separated, the stair part and the supporting part can be conveniently stored and transported separately in the transportation process, the stair part and the supporting part are connected by embedding the fixing protruding strips into the fixing caulking grooves, overall installation is more convenient, and the prefabricated stair has the effect of reducing damage to corner parts in the prefabricated stair transportation process.

Description

Technical Field

[0001] The present application relates to the field of building construction, and particularly to a prefabricated staircase structure. Background Art

[0002] Components used for vertical transportation between floors in a building. Used for traffic connection between floors and when there is a large height difference.

[0003] Referring to the Chinese utility model patent with the patent number CN208650424U, which discloses a precast staircase, relating to the field of building technology. Aiming at the problem of poor connection effect of multiple existing precast staircases, the following technical solutions are provided, including a staircase body. The staircase body is provided with a first connection hole penetrating the staircase body in the width direction. A support member with a strength higher than that of the staircase body is arranged in the first connection hole. A plurality of positioning convex blocks are arranged on one side of the staircase body, and a plurality of positioning grooves for fitting with the connection blocks of another staircase body are arranged on the other side of the staircase body.

[0004] In actual use, since such precast staircases are prone to damage to the edges and corners during transportation, it is rather inconvenient and needs to be improved. Summary of the Utility Model

[0005] In order to reduce the damage to the edges and corners of precast staircases during transportation, the present application provides a prefabricated staircase structure.

[0006] A prefabricated staircase structure provided by the present application adopts the following technical solutions:

[0007] A prefabricated staircase structure includes a support part and a step part. The support part includes an inclined plate, an upper fixing plate and a lower fixing plate. The upper fixing plate is located at one end of the support part far from the lower fixing plate. The support part is provided with a fixed rib. The step part is provided with a fixed groove. The fixed groove is located at one end of the step part close to the support part. The fixed rib is adapted to be embedded in the fixed groove.

[0008] By adopting the above technical solutions, the step part and the support part are provided. By separating the step part and the support part, it is convenient to store and transport the step part and the support part separately during transportation. Compared with the integrally formed precast staircase, the damage to the edges and corners during transportation is reduced. Secondly, the connection between the two is achieved by embedding the fixed rib into the fixed groove, making the overall installation more convenient.

[0009] Optionally, the upper fixing plate is provided with a fixing groove. The fixing groove is located on the side wall of the upper fixing plate and close to the lower fixing plate. The step part is provided with a connecting member. The connecting member is used for being embedded in the fixing groove and connecting with the upper fixing plate.

[0010] By adopting the above technical solution, a connecting member is provided to connect the stepped portion and the upper fixing plate through the connecting member, which improves the connection stability between the stepped portion and the upper fixing plate, reduces the separation of components after installation, and enhances the overall structural strength.

[0011] Optionally, the stepped portion is provided with a vertical groove at one end away from the inclined plate. A connecting groove is provided on the wall of the vertical groove, and the connecting groove communicates with the fixing groove. The connecting member is a connecting block, and the connecting block slides on the wall of the connecting groove and is used to be embedded in the fixing groove.

[0012] By adopting the above technical solution, the vertical groove and the connecting groove are provided. The connecting block slides along the extension block of the connecting groove and is embedded in the fixing groove, which improves the stability of the installation process, facilitates the simultaneous construction of the workers on the lower fixing plate and the workers on the upper fixing plate during the installation process, and is convenient for the overall installation.

[0013] Optionally, the inclined plate is provided with a reinforcing rib at one end close to the stepped portion. The stepped portion is provided with an installation groove for the reinforcing rib to be embedded.

[0014] By adopting the above technical solution, the reinforcing rib is provided. The overall structural strength is improved by embedding the reinforcing rib in the installation groove, and the situation of the fixing rib breaking due to stress is reduced.

[0015] Optionally, the mouth of the installation groove is provided with a tapered surface, and the tapered surface is tapered along the direction close to the bottom of the installation groove.

[0016] By adopting the above technical solution, the tapered surface is provided. The tapered surface is used to guide the reinforcing rib into the installation groove. When the reinforcing rib is embedded in the installation groove, the fixing rib is embedded in the fixing slot. In this way, the connection and installation of components are facilitated.

[0017] Optionally, the stepped portion is provided with an anti-slip strip at one end away from the inclined plate.

[0018] By adopting the above technical solution, the anti-slip strip is provided. The anti-slip strip is located at one end of the stepped portion away from the inclined plate, which reduces the situation of slipping when the user steps on the stairs and improves the overall safety.

[0019] In summary, the present application includes at least one of the following beneficial technical effects:

[0020] 1. The stepped portion and the supporting portion are provided. By separating the stepped portion and the supporting portion, it is convenient for the separate storage and transportation of the stepped portion and the supporting portion during the transportation process. Compared with the precast stairs formed integrally, the damage to the angular parts during the transportation process is reduced;

[0021] 2. A reinforcing rib is provided. By embedding the reinforcing rib into the installation groove, the overall structural strength is enhanced, and the situation where the fixing rib breaks due to stress is reduced.

[0022] 3. A tapered surface is provided. The tapered surface is used to guide the reinforcing rib to be embedded into the installation groove. When the reinforcing rib is embedded into the installation groove, the fixing rib is embedded into the fixing groove. In this way, the connection and installation of components are facilitated. Description of the Drawings

[0023] Figure 1 is the overall schematic diagram of the embodiment.

[0024] Figure 2 is the partial sectional schematic diagram of the embodiment, mainly showing the connecting member.

[0025] Figure 3 is the partial sectional schematic diagram of the embodiment, mainly showing the reinforcing rib.

[0026] Description of the Reference Numerals: 1, support part; 2, stepped part; 3, inclined plate; 4, upper fixing plate; 5, lower fixing plate; 6, fixing rib; 7, reinforcing rib; 8, fixing groove; 9, installation groove; 10, tapered surface; 11, anti-slip strip; 12, fixing groove; 13, connection groove; 14, vertical groove; 15, connecting member; 16, connection block. Detailed Embodiment

[0027] The following further describes the present application in detail with reference to the drawings and embodiments.

[0028] The embodiment of the present application discloses a prefabricated staircase structure. Referring to Figures 1 to 3 , it includes a support part 1 and a stepped part 2. The support part 1 includes an inclined plate 3, an upper fixing plate 4 and a lower fixing plate 5. The upper fixing plate 4 is located above the lower fixing plate 5, and the inclined plate 3 is located between the upper fixing plate 4 and the lower fixing plate 5. The inclined direction of the inclined plate 3 is inclined from the upper fixing plate 4 towards the lower fixing plate 5.

[0029] The inclined plate 3 is provided with a fixing rib 6 and a reinforcing rib 7. Both the fixing rib 6 and the reinforcing rib 7 are located on the upper end surface of the inclined plate 3. The stepped part 2 is provided with a fixing groove 8. The fixing groove 8 is located at one end of the stepped part 2 close to the support part 1, and the fixing groove 8 is for the fixing rib 6 to be embedded. The stepped part 2 is provided with an installation groove 9. The installation groove 9 is located at one end of the stepped part 2 close to the inclined plate 3, and the installation groove 9 is for the reinforcing rib 7 to be embedded. The mouth of the installation groove 9 is provided with a tapered surface 10. The tapered surface 10 is tapered along the direction close to the bottom of the installation groove 9. The tapered surface 10 is used to guide the reinforcing rib 7 to be embedded into the installation groove 9. The stepped part 2 is provided with an anti-slip strip 11. The anti-slip strip 11 is located at one end of the stepped part 2 away from the inclined plate 3 and on the side of the stepped part 2 away from the upper fixing plate 4. The anti-slip strip 11 is used to improve the safety of users and reduce the situation where users slip and fall.

[0030] The upper fixing plate 4 is provided with a fixing groove 12, and the fixing groove 12 is located on the side wall of the upper fixing plate 4 and close to the lower fixing plate 5. The stepped portion 2 is provided with a vertical groove 14, and the vertical groove 14 is located at one end of the stepped portion 2 away from the inclined plate 3. A connecting groove 13 is provided on the groove wall of the vertical groove 14, and the connecting groove 13 communicates with the fixing groove 12. The stepped portion 2 is provided with a connecting member 15, and the connecting member 15 is used to be embedded in the fixing groove 12 to connect the upper fixing plate 4 and the stepped portion 2. In actual use, the connecting member 15 is a connecting block 16, and the connecting block 16 slides on the groove wall of the connecting groove 13, and the sliding direction of the connecting block 16 is the extending direction of the connecting groove 13, and the connecting block 16 is used to be embedded in the fixing groove 12. When the connecting block 16 is embedded in the fixing groove 12, one end of the connecting block 16 away from the bottom of the fixing groove 12 is located in the connecting groove 13. The vertical groove 14 can be filled with cement mortar according to actual conditions, so as to seal the vertical groove 14 and limit the connecting block 16. Alternatively, the connecting member 15 can also be a connecting bolt, and the connecting bolt is used to pass through the stepped portion 2 and be embedded in the upper fixing plate 4 to connect the upper fixing plate 4 and the stepped portion 2. In this embodiment, the connecting blocks 16 can also be used for the connection mode between adjacent stepped portions 2.

[0031] In other embodiments, a hoisting stepped section can also be provided on the inclined plate 3. The hoisting stepped section is integrally formed with the inclined plate 3, and the setting of the hoisting stepped section facilitates the hoisting of the supporting portion 1 and thus facilitates subsequent installation.

[0032] The implementation principle of a prefabricated staircase structure in an embodiment of the present application is as follows: In actual use, when a prefabricated staircase needs to be installed, move the supporting portion 1 to the position where it needs to be installed, move the stepped portion 2 so that the reinforcing rib 7 is embedded in the installation groove 9 through the tapered surface 10. At this time, the fixing convex strip 6 is embedded in the fixing groove 8, and then slide the connecting block 16 so that the connecting block 16 is embedded in the fixing groove 12, and fill the remaining parts of the vertical groove 14 and the connecting groove 13 with cement mortar, reducing the accidental sliding of the connecting block 16.

[0033] The above are all the preferred embodiments of the present application. The protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A prefabricated staircase structure, characterized in that: The invention comprises a support portion (1) and a stepped portion (2), wherein the support portion (1) comprises an inclined plate (3), an upper fixed plate (4) and a lower fixed plate (5), wherein the upper fixed plate (4) is located at one end of the support portion (1) away from the lower fixed plate (5), the support portion (1) is provided with a fixed convex strip (6), and the stepped portion (2) is provided with a fixed embedding groove (8), wherein the fixed embedding groove (8) is located at one end of the stepped portion (2) close to the support portion (1), and the fixed embedding groove (8) is for embedding the fixed convex strip (6).

2. The prefabricated staircase structure according to claim 1, characterized in that: The upper fixing plate (4) is provided with a fixing groove (12), and the fixing groove (12) is located on a side wall of the upper fixing plate (4) and close to a side of the lower fixing plate (5). The stepped portion (2) is provided with a connecting piece (15), and the connecting piece (15) is used to be embedded in the fixing groove (12) and connected to the upper fixing plate (4).

3. The prefabricated staircase structure according to claim 2, characterized in that: The step portion (2) is provided with a vertical groove (14), the vertical groove (14) is located at one end of the step portion (2) away from the inclined plate (3), the groove wall of the vertical groove (14) is provided with a connecting groove (13), the connecting groove (13) is connected to the fixed groove (12), the connecting member (15) is a connecting block (16), the connecting block (16) slides on the groove wall of the connecting groove (13), and the connecting block (16) is used to be embedded in the fixed groove (12).

4. The prefabricated staircase structure according to claim 1, characterized in that: The inclined plate (3) is provided with a reinforcing rib (7), and the reinforcing rib (7) is located at one end of the inclined plate (3) close to the stepped portion (2). The stepped portion (2) is provided with a mounting groove (9), and the mounting groove (9) is for the reinforcing rib (7) to be embedded.

5. The prefabricated staircase structure according to claim 4, characterized in that: The groove opening of the installation groove (9) is provided with a tapered surface (10), and the tapered surface (10) is tapered in a direction close to the groove bottom of the installation groove (9).

6. The prefabricated staircase structure according to claim 1, characterized in that: The step portion (2) is provided with an anti-slip strip (11), and the anti-slip strip (11) is located at one end of the step portion (2) away from the inclined plate (3).

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