Prefabricated concrete assembly type stair vertical plate connecting piece

Abstract

The utility model discloses a prefabricated concrete assembly type stair vertical plate connecting piece, which belongs to the technical field of assembly type stairs and comprises a flat plate and a vertical plate body, L-shaped frames are arranged on the outer sides of the flat plate and the vertical plate body, and a sliding groove is formed in the outer side of the flat plate; the two square blocks at the bottom of the vertical plate body are inserted into the inner walls of the two square grooves, so that the square blocks can extrude the insertion rods downwards along the slope openings until the square blocks are completely installed on the inner walls of the square grooves; at the moment, the inserting rods correspond to the inserting holes in position, the ends, close to the slope openings, of the inserting rods can be reset to the inner cavity positions of the square grooves by means of the acting force of the springs, then the inserting rods are inserted into the inner walls of the inserting holes, the flat plate and the vertical plate body are rapidly installed, no auxiliary tool is needed in the installation process, bolts do not need to be tightened, and convenience is achieved; the pulling plate is pulled to drive the inserting rod to be separated from the inner wall of the inserting hole to achieve disassembly, and time and labor are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of assembled stairs, in particular to a vertical plate connecting piece for precast concrete assembled stairs. Background Art

[0002] With the development of modern industrial technology, houses can be manufactured in batches and sets like machine production. As long as the prefabricated house components are transported to the construction site for assembly, the stairs in the house are also one of them. When assembling the stairs, a connecting piece for the vertical plate is required to achieve quick installation.

[0003] When connecting the existing stair vertical plates, multiple bolts usually need to be tightened for assembly. Bolt connection requires the use of auxiliary tools to tighten them individually, which is relatively cumbersome. After using the bolt connection for a period of time, it will rust, resulting in the problem of difficult disassembly. Moreover, professional auxiliary tools are required for disassembly, which is time-consuming and laborious.

[0004] Therefore, we propose a vertical plate connecting piece for precast concrete assembled stairs. Summary of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a vertical plate connecting piece for precast concrete assembled stairs, which overcomes the deficiencies of the prior art and aims to solve the problems in the background art.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A vertical plate connecting piece for precast concrete assembled stairs, including a flat plate and a vertical plate body. An L-shaped frame is arranged on the outer sides of the flat plate and the vertical plate body. A chute is opened on the outer side of the flat plate. A receiving groove is opened on the inner wall of the chute. Two square grooves are symmetrically opened at the top of the flat plate. A through hole communicating with the square groove is opened on the inner wall of the receiving groove. Two square blocks are symmetrically and fixedly assembled at the bottom of the vertical plate body. A disc is fixedly assembled on the inner wall of the receiving groove. One end of a spring is fixedly connected to the outer side of the disc. The other end of the spring is fixedly connected to a moving disc. A plug rod is fixedly assembled on the side of the moving disc away from the spring. A ramp opening is opened at the end of the plug rod away from the moving disc. A pull rod is fixedly assembled on the side of the disc away from the spring.

[0007] As a preferred technical solution of the utility model, rotating plates are respectively rotatably connected to both sides of the L-shaped frame. Cylinders are respectively fixedly assembled on the sides of the rotating plates close to the flat plate and the vertical plate body. Self-tapping screws are threadedly connected to the inner walls of the rotating plates. The sides of the cylinders away from the rotating plates are respectively in contact with the outer sides of the flat plate and the vertical plate body. Threaded holes are opened in the inner walls of the rotating plates, and the threaded holes penetrate through the rotating plates and the cylinders to the inner wall positions of the flat plate and the vertical plate body. The self-tapping screws are threadedly connected to the inner wall positions of the threaded holes. The L-shaped frames are respectively arranged at the bottom of the flat plate and the outer side of the vertical plate body.

[0008] By adopting the above technical solution, it is possible to form a support on the outer sides of the flat plate and the vertical plate body, ensuring that the flat plate will not fall randomly and the vertical plate body will not tilt randomly when subjected to a force, and improving the firmness of the flat plate and the vertical plate body after connection.

[0009] As a preferred technical solution of the present utility model, a pull plate is fixedly assembled at one end of the pull rod away from the disc. The pull rod is slidably connected to the inner wall of the chute. The outer diameter of the pull rod is adapted to the inner diameter of the chute. The pull rod is slidably connected to the inner wall of the disc.

[0010] By adopting the above technical solution, it is possible to pull the pull rod through the pull plate to move the moving disc and the insertion rod, realizing the adjustment of the position.

[0011] As a preferred technical solution of the present utility model, the outer diameter of the moving disc is adapted to the inner diameter of the receiving groove. The moving disc is slidably connected to the inner wall of the receiving groove. The disc, the spring and the moving disc are all arranged inside the receiving groove.

[0012] By adopting the above technical solution, it is ensured that the moving disc will not shift randomly when sliding on the inner wall of the receiving groove, and the moving disc can slide stably and parallel on the inner wall of the receiving groove, and it is ensured that the disc, the spring and the moving disc will not be exposed outside, thus ensuring that they will not easily come into contact and collide with external objects and cause damage.

[0013] As a preferred technical solution of the present utility model, the insertion rod is slidably connected to the inner wall of the through hole. The outer diameter of the insertion rod is consistent with the inner diameter of the through hole. The ramp opening is arranged inside the square groove.

[0014] By adopting the above technical solution, when the square block presses the insertion rod along the ramp opening, the insertion rod can be pushed to slide on the inner wall of the through hole, thereby realizing the adjustment of the position where the ramp opening is located.

[0015] As a preferred technical solution of the present utility model, the square block is inserted into the inner wall of the square groove. The inner size of the square groove is consistent with the outer size of the square block. A jack is opened on one side of the square block close to the insertion rod. One end of the insertion rod close to the ramp opening is inserted into the inner wall of the jack.

[0016] By adopting the above technical solution, when the square block is installed on the inner wall of the square groove, one end of the insertion rod close to the ramp opening can be inserted into the inner wall of the jack, thereby realizing the positioning of the square block, and thus the assembly between the flat plate and the vertical plate body can be quickly realized.

[0017] As a preferred technical solution of the utility model, the number of the disc, spring, movable disc, insertion rod, pull rod, pull plate and inclined mouth is two, and the two discs, springs, movable discs, insertion rods, pull rods, pull plates and inclined mouths are symmetrically arranged on both sides of the flat plate.

[0018] By adopting the above technical solution, the connection between the two square blocks and the flat plate can be achieved from two different directions, so that the flat plate and the vertical plate body can be firmly connected together, ensuring the firmness of the connection between the flat plate and the vertical plate body.

[0019] Beneficial effects of the utility model:

[0020] 1. By plugging the two square blocks at the bottom of the vertical plate body into the inner wall positions of the two square grooves, the square blocks can squeeze the insertion rod downward along the slope until the square blocks are completely installed to the inner wall position of the square groove. At this time, the positions of the insertion rod and the insertion hole correspond to each other. The end of the insertion rod close to the slope can be reset to the inner cavity position of the square groove with the help of the force of the spring, and then the insertion rod can be plugged into the inner wall position of the insertion hole to achieve quick installation of the flat plate and the vertical plate body. The installation process does not require any auxiliary tools or tightening bolts, which is relatively convenient. The disassembly can be achieved by pulling the pull plate to drive the insertion rod out of the inner wall position of the insertion hole, saving time and effort.

[0021] 2. By installing the L-shaped frame to the outer side of the flat plate and the vertical plate body, the rotating plate is fixedly connected to the flat plate and the vertical plate body by self-tapping screws, and then the outer side of the flat plate and the vertical plate body can be supported to ensure that the flat plate will not fall down at will and the vertical plate body will not tilt at will when subjected to force, thereby improving the firmness of the flat plate and the vertical plate body after connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0023] Figure 2 It is a side view structural schematic diagram of the utility model;

[0024] Figure 3 This is a schematic diagram showing the structure of a flat plate cross section of the utility model;

[0025] Figure 4 For the utility model Figure 3 The enlarged structural diagram at A in the middle;

[0026] Figure 5 It is a schematic diagram of the cross-section hidden structure of the utility model;

[0027] Figure 6 It is a schematic diagram of the spring structure of the utility model.

[0028] In the figure: 1, flat plate; 2, vertical plate body; 3, L-shaped frame; 4, rotating plate; 5, cylinder; 6, self-tapping screw; 7, receiving groove; 8, sliding groove; 9, square groove; 10, through hole; 11, square block; 12, disc; 13, spring; 14, moving disc; 15, insertion rod; 16, pull rod; 17, pull plate; 18, ramp opening. Detailed implementation mode

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0030] Please refer to Figure 1 - Figure 6 For the precast concrete assembled stair vertical plate connector, it includes a flat plate 1 and a vertical plate body 2. An L-shaped frame 3 is provided on the outer sides of the flat plate 1 and the vertical plate body 2. A sliding groove 8 is opened on the outer side of the flat plate 1, and a receiving groove 7 is opened on the inner wall of the sliding groove 8. Two square grooves 9 are symmetrically opened at the top of the flat plate 1. A through hole 10 communicating with the square groove 9 is opened on the inner wall of the receiving groove 7. Two square blocks 11 are symmetrically and fixedly assembled at the bottom of the vertical plate body 2. A disc 12 is fixedly assembled on the inner wall of the receiving groove 7. One end of a spring 13 is fixedly connected to the outer side of the disc 12, and the other end of the spring 13 is fixedly connected to a moving disc 14. An insertion rod 15 is fixedly assembled on the side of the moving disc 14 away from the spring 13. A ramp opening 18 is opened at the end of the insertion rod 15 away from the moving disc 14. A pull rod 16 is fixedly assembled on the side of the disc 12 away from the spring 13.

[0031] Please refer to Figure 1 And Figure 2 For, rotating plates 4 are respectively rotatably connected to both sides of the L-shaped frame 3. Cylinders 5 are respectively fixedly assembled on the sides of the rotating plates 4 close to the flat plate 1 and the vertical plate body 2. Self-tapping screws 6 are threadedly connected to the inner walls of the rotating plates 4. The sides of the cylinders 5 away from the rotating plates 4 are respectively in contact with the outer sides of the flat plate 1 and the vertical plate body 2. Threaded holes are opened in the inner walls of the rotating plates 4, and the threaded holes penetrate through the rotating plates 4 and the cylinders 5 to the inner wall positions of the flat plate 1 and the vertical plate body 2. The self-tapping screws 6 are threadedly connected to the inner wall positions of the threaded holes. The L-shaped frames 3 are respectively arranged at the bottom of the flat plate 1 and the outer side of the vertical plate body 2, so as to be able to support the outer sides of the flat plate 1 and the vertical plate body 2, ensuring that the flat plate 1 will not fall randomly when subjected to a force and the vertical plate body 2 will not tilt randomly, and improving the firmness of the flat plate 1 and the vertical plate body 2 after connection.

[0032] Please refer toFigure 5 and Figure 6 One end of the pull rod 16 away from the disc 12 is fixedly assembled with a pull plate 17. The pull rod 16 is slidably connected to the inner wall of the chute 8. The outer diameter of the pull rod 16 is adapted to the inner diameter of the chute 8. The pull rod 16 is slidably connected to the inner wall of the disc 12, so that the pull rod 16 can be pulled by the pull plate 17 to move the moving disc 14 and the insertion rod 15, realizing the adjustment of the position.

[0033] Please refer to Figure 5 and Figure 6 The outer diameter of the moving disc 14 is adapted to the inner diameter of the receiving groove 7. The moving disc 14 is slidably connected to the inner wall of the receiving groove 7. The disc 12, the spring 13 and the moving disc 14 are all arranged in the inner cavity of the receiving groove 7, so that it can be ensured that the moving disc 14 will not shift randomly when sliding on the inner wall of the receiving groove 7, and the moving disc 14 can be stably moved and slide parallel and stably on the inner wall of the receiving groove 7, and it can be ensured that the disc 12, the spring 13 and the moving disc 14 are not exposed outside, thereby ensuring that they will not easily come into contact and collide with external objects and cause damage.

[0034] Please refer to Figure 4 and Figure 6 The insertion rod 15 is slidably connected to the inner wall of the through hole 10. The outer diameter of the insertion rod 15 is consistent with the inner diameter of the through hole 10. The ramp opening 18 is arranged in the inner cavity of the square groove 9, so that when the square block 11 presses the insertion rod 15 along the ramp opening 18, the insertion rod 15 can be pushed to slide on the inner wall of the through hole 10, thereby realizing the adjustment of the position where the ramp opening 18 is located.

[0035] Please refer to Figure 4 and Figure 5 The square block 11 is inserted into the inner wall of the square groove 9. The inner size of the square groove 9 is consistent with the outer size of the square block 11. A jack is opened on one side of the square block 11 close to the insertion rod 15. One end of the insertion rod 15 close to the ramp opening 18 is inserted into the inner wall of the jack, so that when the square block 11 is installed on the inner wall of the square groove 9, one end of the insertion rod 15 close to the ramp opening 18 can be inserted into the inner wall of the jack, thereby realizing the positioning of the square block 11, and thus the assembly between the flat plate 1 and the vertical plate body 2 can be quickly realized.

[0036] Please refer to Figure 1 and Figure 6The number of the disc 12, the spring 13, the moving disc 14, the inserting rod 15, the pulling rod 16, the pulling plate 17 and the ramp opening 18 is two, and the two discs 12, the spring 13, the moving disc 14, the inserting rod 15, the pulling rod 16, the pulling plate 17 and the ramp opening 18 are symmetrically arranged on both sides of the flat plate 1, so that the connection between the two square blocks 11 and the flat plate 1 can be realized from two different directions, and then the flat plate 1 and the vertical plate body 2 can be firmly connected together, ensuring the firmness of the connection between the flat plate 1 and the vertical plate body 2.

[0037] Working principle: When using this device, first, the vertical plate body 2 can be taken and the two square blocks 11 at the bottom of the vertical plate body 2 can be inserted into the inner wall positions of the two square grooves 9, so that the square blocks 11 can squeeze the inserting rod 15 downward along the ramp opening 18. Further, the inserting rod 15 will be squeezed to slide on the inner wall position of the through hole 10 until the square blocks 11 are completely installed at the inner wall positions of the square grooves 9. At this time, the position of the inserting rod 15 corresponds to the jack, and the end of the inserting rod 15 close to the ramp opening 18 can be reset to the inner cavity position of the square groove 9 by the acting force of the spring 13. Then, the inserting rod 15 is inserted into the inner wall position of the jack to realize the quick installation of the flat plate 1 and the vertical plate body 2. Then, the L-shaped frame 3 can be installed on the outer sides of the flat plate 1 and the vertical plate body 2, and the rotating plate 4 is fixedly connected to the flat plate 1 and the vertical plate body 2 through the self-tapping screws 6. Then, the outer sides of the flat plate 1 and the vertical plate body 2 can be supported, ensuring that the flat plate 1 will not fall randomly and the vertical plate body 2 will not tilt randomly when subjected to acting forces, improving the firmness of the flat plate 1 and the vertical plate body 2 after connection.

[0038] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A precast concrete assembled stair riser connector, comprising a flat plate (1) and a riser body (2), characterized in that: The outer sides of the flat plate (1) and the vertical plate body (2) are provided with an L-shaped frame (3); the outer side of the flat plate (1) is provided with a slide groove (8); the inner wall of the slide groove (8) is provided with a receiving groove (7); the top of the flat plate (1) is symmetrically provided with two square grooves (9); the inner wall of the receiving groove (7) is provided with a through hole (10) which is communicated with the square groove (9); the bottom of the vertical plate body (2) is symmetrically fixed with two square blocks (11); the inner wall of the receiving groove (7) is provided with a through hole (10) which is communicated with the square groove (9); A disc (12) is fixedly mounted on the wall, one end of a spring (13) is fixedly connected to the outer side of the disc (12), the other end of the spring (13) is fixedly connected to a movable disc (14), an insertion rod (15) is fixedly mounted on the side of the movable disc (14) away from the spring (13), an inclined opening (18) is provided on the end of the insertion rod (15) away from the movable disc (14), and a pull rod (16) is fixedly mounted on the side of the disc (12) away from the spring (13).

2. The precast concrete assembled stair riser connector according to claim 1, characterized in that: The two sides of the L-shaped frame (3) are rotatably connected with rotating plates (4), and the sides of the rotating plates (4) close to the flat plate (1) and the vertical plate body (2) are respectively fixedly equipped with cylinders (5). The inner wall of the rotating plate (4) is threadedly connected with self-tapping screws (6), and the sides of the cylinders (5) away from the rotating plate (4) are respectively fitted with the outer sides of the flat plate (1) and the vertical plate body (2). The inner wall of the rotating plate (4) is provided with threaded holes, and the threaded holes penetrate the rotating plate (4) and the cylinders (5) to the inner wall positions of the flat plate (1) and the vertical plate body (2), and the self-tapping screws (6) are threadedly connected to the inner wall positions of the threaded holes. The L-shaped frame (3) is respectively arranged at the bottom of the flat plate (1) and the outer side of the vertical plate body (2).

3. The precast concrete assembled stair riser connector according to claim 1, characterized in that: A pull plate (17) is fixedly mounted on one end of the pull rod (16) away from the disc (12), and the pull rod (16) is slidably connected to the inner wall of the slide groove (8). The outer diameter of the pull rod (16) is matched with the inner wall diameter of the slide groove (8), and the pull rod (16) is slidably connected to the inner wall of the disc (12).

4. The precast concrete assembled stair riser connector according to claim 1, characterized in that: The outer diameter of the movable disk (14) is matched with the inner wall diameter of the containing groove (7), the movable disk (14) is slidably connected to the inner wall position of the containing groove (7), and the disc (12), the spring (13) and the movable disk (14) are all arranged in the inner cavity position of the containing groove (7).

5. The precast concrete assembled stair riser connector according to claim 1, characterized in that: The insertion rod (15) is slidably connected to the inner wall of the through hole (10), the outer diameter of the insertion rod (15) is consistent with the inner wall diameter of the through hole (10), and the sloped opening (18) is arranged at the inner cavity of the square groove (9).

6. The precast concrete assembled stair riser connector according to claim 1, characterized in that: The square block (11) is inserted into the inner wall of the square groove (9), the inner size of the square groove (9) is consistent with the outer size of the square block (11), a plug hole is provided on one side of the square block (11) close to the plug rod (15), and one end of the plug rod (15) close to the slope opening (18) is inserted into the inner wall of the plug hole.

7. The precast concrete assembled stair riser connector according to claim 1, characterized in that: The number of the circular disc (12), the spring (13), the movable disc (14), the insertion rod (15), the pull rod (16), the pull plate (17) and the inclined opening (18) is two, and the two circular discs (12), the spring (13), the movable disc (14), the insertion rod (15), the pull rod (16), the pull plate (17) and the inclined opening (18) are symmetrically arranged at two sides of the flat plate (1).

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