Mounting structure of prefabricated stair

Abstract

The utility model discloses a mounting structure of a prefabricated stair, which belongs to the technical field of assembly type buildings, and is characterized in that the mounting structure comprises a mounting platform and a prefabricated stair main body, a mounting groove is formed in the right side of the top of the mounting platform, and a positioning assembly is arranged in the mounting groove; connecting protruding blocks are fixedly connected to the two sides of the prefabricated stair body correspondingly, the connecting assemblies and the positioning assemblies are arranged, the prefabricated stair body is hoisted to a proper position through hoisting equipment, a trapezoidal block can gradually extrude the two positioning blocks when moving downwards, the two positioning blocks can move oppositely, and therefore the prefabricated stair body can be fixed. When the positioning block moves, the elastic piece and the telescopic rod are extruded, and then when the connecting block moves downwards to a proper position, the positioning block extends into the positioning groove under the driving of the elastic force of the elastic piece, so that the position of the positioning block can be limited and fixed, and the phenomenon of deviation during mounting of the prefabricated stair main body is avoided; and the mounting effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated buildings, and particularly relates to an installation structure of a precast staircase. Background Technique

[0002] The precast staircase is one of the commonly used components in prefabricated buildings. It is usually cast and produced in a factory and then transported to the construction site for installation. Compared with the cast-in-place staircase on-site, the precast staircase has a higher standardization degree, better quality, and can be used immediately after installation.

[0003] At present, the Chinese utility model with the publication number of CN215167360U discloses an installation structure of a precast staircase, which particularly relates to the technical field of prefabricated buildings. It includes a top plate and a bottom plate. One side of the top surface of the top plate is provided with a transition plate layer. The top surface of the bottom plate is fixedly connected with an adapter plate. One side of the adapter plate is fixedly connected to the transition plate layer. The top plate is provided with a groove on the bottom surface of the transition plate layer. An insertion plate is arranged inside the groove. The top surface of the insertion plate is fixedly connected to the bottom surface of the transition plate layer. The top plate is provided with symmetric first threaded through holes penetrating through the bottom surface of the groove. The bottom surface of the insertion plate is provided with first threaded holes matching the groove. By setting the groove, inserting the insertion plate into the groove, and threadedly connecting the first bolt to the first threaded through hole and the first threaded hole, the transition plate layer is positioned, and then the top plate and the transition plate layer are connected through a connecting mechanism, so as to achieve accurate positioning of the transition layer, reliable fixation, and relatively high structural strength.

[0004] During the installation process of the precast staircase, it is necessary to rely on the experience of the constructor to hoist the precast staircase onto the staircase platform. It is not easy to directly hoist the staircase to the correct position, so that the staircase needs to be adjusted multiple times. During the adjustment, the constructor often needs to use a crowbar for fine-tuning, which makes the installation very inconvenient and easily damages the edges and corners of the staircase, thus affecting the installation effect of the precast staircase. Content of the Utility Model

[0005] The utility model provides an installation structure of a precast staircase, aiming to solve the problem that during the installation process of the existing precast staircase, it is necessary to rely on the experience of the constructor to hoist the precast staircase onto the staircase platform. It is not easy to directly hoist the staircase to the correct position, so that the staircase needs to be adjusted multiple times. During the adjustment, the constructor often needs to use a crowbar for fine-tuning, which makes the installation very inconvenient and easily damages the edges and corners of the staircase, thus affecting the installation effect.

[0006] The utility model is realized as follows. An installation structure of a precast staircase includes an installation platform and a precast staircase main body. An installation groove is opened on the right side of the top of the installation platform. A positioning component is arranged inside the installation groove. Connecting convex blocks are fixedly connected to both sides of the precast staircase main body. A connecting component is fixedly connected to the bottom of the connecting convex block;

[0007] The positioning component includes a telescopic rod, a positioning block and an elastic member. The telescopic rods are fixedly connected to both sides of the inner wall of the installation groove, and the number of telescopic rods is set to several. The positioning blocks are fixedly connected to the sides of the telescopic rods away from the installation groove, and the sides of the two positioning blocks close to each other are both inclined planes. The elastic member is sleeved on the surface of the telescopic rod, and the two sides of the telescopic rod close to the installation groove and the positioning block are respectively fixedly connected to the installation groove and the positioning block.

[0008] In order to achieve the effect of being able to connect with the installation platform, as a preferred installation structure of a precast staircase of the present utility model, the connection component includes a connection block, a positioning groove and a trapezoidal block. The connection block is fixedly connected to the bottom of the connection convex block. The positioning grooves are opened on both sides of the connection block. The trapezoidal block is fixedly connected to the bottom of the connection block, and the trapezoidal block and the positioning block are used in cooperation with each other.

[0009] In order to achieve the effect of facilitating the downward movement of the connection block, as a preferred installation structure of a precast staircase of the present utility model, grooves are opened at the bottoms of the opposite sides of the two positioning blocks. Fixed blocks are fixedly connected to the front side and the rear side of the groove respectively. A roller is rotatably connected between the opposite sides of the two fixed blocks, and the side of the roller close to the connection block is in rolling connection with it.

[0010] In order to achieve the effect of being able to limit the precast staircase, as a preferred installation structure of a precast staircase of the present utility model, an installation block is fixedly connected to the right side of the top of the installation platform, and a limiting rod is fixed to the top of the installation block. The number of limiting rods is set to several and they are evenly distributed.

[0011] In order to achieve the effect of being able to cooperate with the limiting rod, as a preferred installation structure of a precast staircase of the present utility model, a plurality of filling holes are opened on the left side of the top of the connection convex block, and the limiting rod is movably connected inside the filling holes.

[0012] In order to achieve the effect of being able to reinforce the installation position of the precast staircase, as a preferred installation structure of a precast staircase of the present utility model, a threaded hole is opened on the right side of the top of the connection convex block, and a threaded groove is opened on the right side of the top of the installation platform. The threaded hole and the threaded groove are in communication with each other.

[0013] In order to achieve the effect of preventing the connection block from shaking inside the installation groove, as a preferred installation structure of a precast staircase of the present utility model, a limiting groove is opened at the bottom of the inner wall of the installation groove, and a loosening prevention block is movably connected inside the limiting groove. The loosening prevention block is fixedly connected to the bottom of the connection block.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] The installation structure of the precast staircase, by setting up a connection component and a positioning component, uses a hoisting device to lift the precast staircase main body to an appropriate position, so that the connection block enters the inside of the installation groove. Then, the precast staircase main body will drive the trapezoidal block to move downward. When the trapezoidal block moves downward, it will gradually squeeze the two positioning blocks, causing the two positioning blocks to move in opposite directions. When the positioning blocks move, they will also squeeze the elastic members and the telescopic rods. Then, when the connection block moves downward to an appropriate position, the positioning blocks will extend into the inside of the positioning grooves under the driving force of the elastic force of the elastic members, thereby achieving the effect of limiting and fixing the positions of the positioning blocks, avoiding the deviation phenomenon during the installation of the precast staircase main body, and improving the installation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is the overall structure diagram of the installation structure of the precast staircase of the present utility model;

[0017] Figure 2 It is the exploded view of the installation platform and the precast staircase main body in the present utility model;

[0018] Figure 3 It is the front cross-sectional view of the installation platform and the precast staircase main body in the present utility model;

[0019] Figure 4 It is the structural diagram of the positioning component in the present utility model;

[0020] Figure 5 For the present utility model Figure 2 The enlarged view of part A;

[0021] Figure 6 For the present utility model Figure 3 The enlarged view of part B.

[0022] In the figure, 1, installation platform; 2, precast staircase main body; 3, installation groove; 4, positioning component; 401, telescopic rod; 402, positioning block; 403, elastic member; 5, connection convex block; 6, connection component; 601, connection block; 602, positioning groove; 603, trapezoidal block; 7, groove; 8, fixing block; 9, roller; 10, installation block; 11, limiting rod; 12, filling hole; 13, threaded hole; 14, threaded groove; 15, limiting groove; 16, anti-loosening block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0024] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model 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. Therefore, it should not be construed as a limitation to the present utility model. In addition, in the description of the present utility model, the meaning of "a plurality of" is two or more, unless otherwise specifically defined.

[0025] Please refer to Figures 1-6 , the present utility model provides a technical solution: an installation structure of a precast staircase, including an installation platform 1 and a precast staircase main body 2. An installation groove 3 is opened on the right side of the top of the installation platform 1. A positioning component 4 is arranged inside the installation groove 3. Connecting convex blocks 5 are fixedly connected to both sides of the precast staircase main body 2. A connecting component 6 is fixedly connected to the bottom of the connecting convex block 5;

[0026] The positioning component 4 includes a telescopic rod 401, a positioning block 402 and an elastic member 403. The telescopic rod 401 is fixedly connected to both sides of the inner wall of the installation groove 3 and the number of the telescopic rods 401 is set to be several. The positioning block 402 is fixedly connected to the side of the telescopic rod 401 away from the installation groove 3. The sides of the two positioning blocks 402 close to each other are both beveled surfaces. The elastic member 403 is sleeved on the surface of the telescopic rod 401 and the two sides of the telescopic rod 401 close to the installation groove 3 and the positioning block 402 are respectively fixedly connected to the installation groove 3 and the positioning block 402.

[0027] In this embodiment: By setting the connecting component 6 and the positioning component 4, the precast staircase main body 2 is hoisted to an appropriate position by a hoisting device, so that the connecting block 601 enters the inside of the installation groove 3. Then the precast staircase main body 2 will drive the trapezoidal block 603 to move downward. When the trapezoidal block 603 moves downward, it will gradually squeeze the two positioning blocks 402, so that the two positioning blocks 402 will move in opposite directions. When the positioning blocks 402 move, they will squeeze the elastic member 403 and the telescopic rod 401. Then when the connecting block 601 moves downward to an appropriate position, the positioning blocks 402 will extend into the positioning groove 602 under the driving of the elastic force of the elastic member 403, so as to limit and fix the position of the positioning blocks 402, avoid the deviation phenomenon during the installation of the precast staircase main body 2, and improve the installation effect.

[0028] As a technical optimization solution of the utility model, the connecting component 6 includes a connecting block 601, a positioning groove 602 and a trapezoidal block 603. The connecting block 601 is fixedly connected to the bottom of the connecting convex block 5. The positioning grooves 602 are opened on both sides of the connecting block 601. The trapezoidal block 603 is fixedly connected to the bottom of the connecting block 601, and the trapezoidal block 603 is used in cooperation with the positioning block 402.

[0029] In this embodiment: By providing the connecting component 6, when the hoisting device hoists the precast staircase main body 2 to an appropriate position, the connecting block 601 can enter the inside of the installation groove 3. When the trapezoidal block 603 moves downward, it will gradually squeeze the two positioning blocks 402, causing the two positioning blocks 402 to move in opposite directions. The positioning groove 602 can be used in cooperation with the positioning block 402 to limit and fix the position of the positioning block 402.

[0030] As a technical optimization solution of the utility model, grooves 7 are opened at the bottoms of the opposite sides of the two positioning blocks 402. Fixed blocks 8 are fixedly connected to the front side and the rear side of the groove 7. A roller 9 is rotatably connected between the opposite sides of the two fixed blocks 8. The side of the roller 9 close to the connecting block 601 is in rolling connection with it.

[0031] In this embodiment: Through the above settings, the roller 9 can be in rolling connection with both sides of the connecting block 601, thereby improving the smoothness of the movement of the connecting block 601.

[0032] As a technical optimization solution of the utility model, an installation block 10 is fixedly connected to the right side of the top of the installation platform 1. A limiting rod 11 is fixed to the top of the installation block 10. The number of the limiting rods 11 is set to be several and they are evenly distributed.

[0033] In this embodiment: Through the above settings, the limiting rod 11 can limit the precast staircase main body 2, thereby improving the stability during the installation of the precast staircase.

[0034] As a technical optimization solution of the utility model, a plurality of filling holes 12 are opened on the left side of the top of the connecting convex block 5. The limiting rod 11 is movably connected inside the filling holes 12.

[0035] In this embodiment: Through the above settings, the filling holes 12 can be used in cooperation with the limiting rod 11. After the filling holes 12 are sleeved on the surface of the limiting rod 11, concrete is poured into the inside of the filling holes 12, so as to further improve the stability of the precast staircase main body 2 during use.

[0036] As a technical optimization solution of the utility model, a threaded hole 13 is opened on the right side of the top of the connecting convex block 5. A threaded groove 14 is opened on the right side of the top of the installation platform 1. The threaded hole 13 is in communication with the threaded groove 14.

[0037] In this embodiment: Through the above settings, bolts can be used to threadedly connect the threaded holes 13 and the threaded grooves 14 in sequence, so that the position of the precast staircase main body 2 can be further fixed, improving the installation effect.

[0038] As a technical optimization solution of the present utility model, a limiting groove 15 is provided at the bottom of the inner wall of the installation groove 3, and an anti-loosening block 16 is movably connected inside the limiting groove 15. The anti-loosening block 16 is fixedly connected to the bottom of the connecting block 601.

[0039] In this embodiment: Through the above settings, the limiting groove 15 can limit the position of the anti-loosening block 16, so that the anti-loosening block 16 and the connecting block 601 will not loosen or shift.

[0040] Working principle: First, the precast staircase main body 2 is hoisted to an appropriate position by a hoisting device, so that the connecting block 601 enters the inside of the installation groove 3. Then the precast staircase main body 2 will drive the connecting convex block 5, the connecting block 601 and the trapezoidal block 603 to move downward. When the trapezoidal block 603 moves downward, it will gradually squeeze the two positioning blocks 402, so that the two positioning blocks 402 will move in opposite directions. When the positioning blocks 402 move, they will squeeze the elastic member 403 and the telescopic rod 401. Then when the connecting block 601 moves downward to an appropriate position, the positioning blocks 402 will extend into the positioning grooves 602 under the elastic force of the elastic member 403, so as to limit and fix the position of the positioning blocks 402. Then bolts are used to threadedly connect the threaded holes 13 and the threaded grooves 14 in sequence, and the precast staircase main body 2 can be further fixed. At this time, the filling hole 12 will be sleeved on the surface of the limiting rod 11. Finally, concrete is poured into the filling hole 12 to complete the installation work of the precast staircase.

[0041] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A prefabricated stair installation structure, comprising a mounting platform (1) and a prefabricated stair main body (2), characterized in that: The right side of the top of the installation platform (1) is provided with an installation groove (3), a positioning assembly (4) is arranged inside the installation groove (3), both sides of the prefabricated staircase body (2) are fixedly connected with connection protrusions (5), and the bottom of the connection protrusion (5) is fixedly connected with a connection assembly (6); The positioning assembly (4) comprises a telescopic rod (401), a positioning block (402) and an elastic member (403); the telescopic rod (401) is fixedly connected to both sides of the inner wall of the mounting groove (3), and the number of the telescopic rods (401) is set to be a plurality; the positioning block (402) is fixedly connected to a side of the telescopic rod (401) away from the mounting groove (3), and the sides of the two positioning blocks (402) close to each other are both set to be inclined surfaces; the elastic member (403) is sleeved on the surface of the telescopic rod (401), and the side of the telescopic rod (401) close to the mounting groove (3) and the positioning block (402) is fixedly connected to the mounting groove (3) and the positioning block (402) respectively.

2. The installation structure of a prefabricated staircase according to claim 1, characterized in that: The connection assembly (6) comprises a connection block (601), a positioning groove (602) and a trapezoidal block (603); the connection block (601) is fixedly connected to the bottom of the connection protrusion (5); the positioning groove (602) is provided on both sides of the connection block (601); the trapezoidal block (603) is fixedly connected to the bottom of the connection block (601); and the trapezoidal block (603) and the positioning block (402) cooperate with each other for use.

3. The installation structure of a prefabricated staircase according to claim 1, characterized in that: A groove (7) is provided at the bottom of the opposite side of the two positioning blocks (402), and a fixing block (8) is fixedly connected to the front and rear sides of the groove (7). A roller (9) is rotatably connected between the opposite sides of the two fixing blocks (8), and the roller (9) is rollingly connected to the connecting block (601) at the side close to the connecting block (601).

4. The installation structure of a prefabricated staircase according to claim 1, characterized in that: A mounting block (10) is fixedly connected to the right side of the top of the mounting platform (1), and a limiting rod (11) is fixed to the top of the mounting block (10), wherein the number of the limiting rods (11) is set to be several and evenly distributed.

5. The installation structure of a prefabricated staircase according to claim 4, characterized in that: A plurality of filling holes (12) are provided on the left side of the top of the connecting protrusion (5), and the limiting rod (11) is movably connected inside the filling hole (12).

6. The installation structure of a prefabricated staircase according to claim 1, characterized in that: A threaded hole (13) is provided on the right side of the top of the connecting protrusion (5), and a threaded groove (14) is provided on the right side of the top of the mounting platform (1), and the threaded hole (13) and the threaded groove (14) are connected to each other.

7. The installation structure of a prefabricated staircase according to claim 2, characterized in that: A limiting groove (15) is provided at the bottom of the inner wall of the installation groove (3), and an anti-loosening block (16) is movably connected inside the limiting groove (15), and the anti-loosening block (16) is fixedly connected to the bottom of the connecting block (601).

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