Modularized prefabricated part connecting structure

Abstract

The utility model discloses a modularized prefabricated part connecting structure which comprises a mounting face and a stair body arranged on the mounting face, the stair body is composed of a first stair board and a second stair board which are connected with each other, and the first stair board and the second stair board are the same in structure and at least comprise three sets of stair building blocks. Prefabricated supports are arranged below the connecting position of the first stair plate and the second stair plate and below the connecting position of the top of the second stair plate, detachable supporting rods are connected to the bottoms of the prefabricated supports, and the bottoms of the detachable supporting rods abut against the mounting face. According to the modularized prefabricated stair component, the hoisting difficulty is reduced, the prefabricated support assists in positioning and mounting, the connecting strength between the stair components is improved, the difficulty degree of mounting the prefabricated stair is reduced, and the mounting speed of the prefabricated stair is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated component connection, in particular to a modular prefabricated component connection structure. Background Art

[0002] In prefabricated concrete components, the vertical connection of prefabricated concrete stairs is one of the key technologies. The connection nodes of prefabricated concrete components are the weak links of prefabricated concrete structures. The ladder beams in prefabricated concrete stair components are the key to the connection. Mature and reliable node connection technology is the key to ensuring the integrity and safety of prefabricated concrete structures. Superior prefabricated concrete component connection technology should have the characteristics of safe and reliable connection, simple and easy component prefabrication, transportation and construction, and low cost. This is also the development direction of efficient connection of prefabricated concrete components.

[0003] The existing prefabricated stairs at this stage generally adopt the method of integral prefabrication, which leads to the large volume of the prefabricated stairs, thus placing high requirements on the on-site yard and tower crane capacity, and increasing the difficulty of hoisting the prefabricated stairs. Utility Model Content

[0004] In order to solve the above technical problems, a modular prefabricated component connection structure is provided.

[0005] To achieve the above-mentioned purpose, the utility model discloses a modular prefabricated component connection structure, including a mounting surface and a stair body arranged on the mounting surface, the stair body consisting of a first stair tread and a second stair tread connected to each other, the first stair tread and the second stair tread have the same structure and include at least three groups of stair blocks, and prefabricated brackets are arranged below the connection position between the first stair tread and the second stair tread and below the top connection position of the second stair tread, the bottom of the prefabricated bracket is connected to a detachable support rod, and the bottom of the detachable support rod abuts against the mounting surface.

[0006] Furthermore, a positioning portion is provided at the bottom of the stair building block of the lowest layer of the first stair tread, and the positioning portion is a protruding structure at the bottom of the stair building block.

[0007] Furthermore, a pad is provided between the prefabricated bracket and the first stair tread and the second stair tread, and the pad is used to fix the prefabricated bracket and the first stair tread and the second stair tread through connecting bolts.

[0008] Furthermore, the upper contour of the prefabricated bracket fits the connection position of the first stair tread and the second stair tread.

[0009] Furthermore, a drainage channel parallel to the inclination direction of the first stair slab is arranged inside the first stair slab, and vertical drainage holes connected to the drainage channel are opened on the surface of each stair block.

[0010] Furthermore, the drainage hole of the stair block at the top of the first stair tread is a through hole, the through hole is located between two groups of connecting bolts, and the bottom of the through hole is sealed by a plug and a curing agent.

[0011] Furthermore, a horizontal connecting hole is provided between the drainage hole in the stair block at the top of the first stair tread and the drainage channel in the positioning portion at the bottom of the second stair tread, and a sealing sleeve is installed in the connecting hole.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the utility model discloses a modular prefabricated component connection structure, which reduces the difficulty of lifting through modular prefabricated stair components, and uses prefabricated brackets to assist in positioning and installation, and improves the connection strength between stair components, thereby reducing the difficulty of installing prefabricated stairs and increasing the installation speed of prefabricated stairs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 It is a schematic diagram of the internal structure of the utility model.

[0016] Figure 3 For this utility model Figure 2 Partial view at point A in the middle.

[0017] Figure 4 This is a schematic diagram of the first stair tread of the present invention.

[0018] In the figure: 1 is the first stair tread; 11 is the stair building block; 12 is the positioning part; 13 is the drainage channel; 14 is the drainage hole; 141 is the plug; 15 is the sealing sleeve; 2 is the second stair tread; 3 is the prefabricated bracket; 31 is the pad; 4 is the detachable support rod; 5 is the installation surface. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of the utility model.

[0020] An embodiment of the utility model, as Figure 1 and Figure 2As shown, the main body of the staircase is composed of a first stair tread 1 and a second stair tread 2 that are connected to each other. The first stair tread 1 and the second stair tread 2 have the same structure and include at least three groups of stair blocks 11. A prefabricated bracket 3 is arranged below the connection position between the first stair tread 1 and the second stair tread 2 and below the top connection position of the second stair tread 2. The steel pipe structure of the prefabricated bracket 3 is fixedly connected to the stair tread by welding. A detachable support rod 4 is connected to the bottom of the prefabricated bracket 3. The bottom of the detachable support rod 4 abuts against the installation surface 5. After the installation of the prefabricated bracket 3 is completed, the detachable support rod 4 is removed. The difficulty of lifting is reduced by modularizing prefabricated stair components. The prefabricated bracket assists in positioning and installation, and improves the connection strength between the stair components, thereby reducing the difficulty of installing the prefabricated stairs and increasing the installation speed of the prefabricated stairs.

[0021] A positioning portion 12 is provided at the bottom of the lowest stair block 11 of the first stair tread 1. The positioning portion 12 is a raised structure at the bottom of the stair block 11. The positioning portion 12 of the first stair tread 1 is engaged with the positioning groove on the surface of the mounting surface for positioning. The high part of the first stair tread 1 is overlapped on the prefabricated bracket 3 and connected to the second stair tread 2.

[0022] A pad 31 is arranged between the prefabricated bracket 3 and the first stair tread 1 and the second stair tread 2. The pad 31 fixes the prefabricated bracket 3 with the first stair tread 1 and the second stair tread 2 through connecting bolts. The prefabricated bracket 3 is fixedly connected with the first stair tread 1 and the second stair tread 2 in the vertical and horizontal directions through the connecting bolts and the pad 31. As a preferred embodiment of the present application, if the connection strength is not enough, the prefabricated bracket can be solidified by pouring cement to improve the connection strength.

[0023] The upper contour of the prefabricated bracket 3 fits the connection position of the first stair tread 1 and the second stair tread 2, which facilitates the positioning of the second stair tread 2, improves the connection strength, and avoids sliding during the connection process that affects the connection effect.

[0024] like Figure 2 and Figure 4 As shown, a drainage channel 13 parallel to the inclination direction of the first stair tread 1 is arranged inside the first stair tread 1, and the drainage channel 13 is located near the edge on both sides of the stair tread. Vertical drainage holes 14 are opened on the surface of each stair block 11 and connected to the drainage channel 13. The accumulated water on the surface of the stair tread flows to the drainage holes 14 on both sides, and flows to the bottom through the drainage channel 13 for drainage, thereby improving the overall drainage effect of the stair component.

[0025] The drainage hole 14 of the top stair block 11 of the first stair tread 1 is a through hole, which is located between two sets of connecting bolts. The bottom of the through hole is sealed by a plug 141 and a curing agent. The drainage hole 14 of the top stair block 11 is used as a lifting hole. After the lifting positioning is completed, the lifting fixture is taken out and the plug 141 is installed at the bottom of the through hole, and the auxiliary curing agent completely seals the bottom of the through hole.

[0026] A horizontal connecting hole is arranged between the drainage hole 14 in the stair block 11 at the top of the first stair tread 1 and the drainage channel in the bottom positioning part of the second stair tread 2. A sealing sleeve 15 is installed in the connecting hole to connect the drainage channel 13 between the two stair components. The sealing sleeve 15 facilitates positioning and alignment, and at the same time improves the sealing of the connection between the stair treads to avoid leakage during the drainage process and affect the drainage quality.

[0027] The working principle of this embodiment: Before installing the stair component, install the prefabricated bracket according to the size and height of the stair tread, align the positioning part of the first stair tread with the positioning groove of the installation surface through hoisting, overlap the stair block at the high part of the first stair tread on the prefabricated bracket, remove the hoisting fixture, install the sealing sleeve in the horizontal connecting hole at the top of the drainage channel, and hoist the second stair tread according to the above process, so that the positioning part of the second stair tread is inserted into the sealing sleeve set in the first stair tread and overlapped on the prefabricated bracket, and the prefabricated bracket and the stair tread are fixedly connected by connecting bolts and gaskets. Insert a plug and a curing agent under the drainage hole at the top of the first stair tread to complete the sealing. After it is completely solidified, remove the detachable support rod to complete the installation of the stair component.

[0028] Several points that need to be explained are: First, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, and can be mechanical or electrical connections, or internal connectivity between two elements, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may change; secondly, in this article, relational terms such as first and second, etc. are only used to distinguish one entity from another, and do not necessarily require or imply that there is any such actual relationship or order between these entities.

[0029] The above examples are merely illustrative of the present utility model and do not constitute a limitation on the protection scope of the present utility model. All designs that are identical or similar to the present utility model fall within the protection scope of the present utility model.

Claims

1. A modular prefabricated component connection structure, comprising a mounting surface (5) and a staircase body arranged on the mounting surface (5), characterized in that: The staircase body is composed of a first staircase tread (1) and a second staircase tread (2) which are connected to each other. The first staircase tread (1) and the second staircase tread (2) have the same structure and include at least three groups of staircase blocks (11). A prefabricated bracket (3) is provided below the connection position between the first staircase tread (1) and the second staircase tread (2) and below the top connection position of the second staircase tread (2). A detachable support rod (4) is connected to the bottom of the prefabricated bracket (3), and the bottom of the detachable support rod (4) abuts against the mounting surface (5).

2. A modular prefabricated component connection structure according to claim 1, characterized in that: A positioning portion (12) is provided at the bottom of the stair building block (11) at the lowest layer of the first stair tread (1), and the positioning portion (12) is a protruding structure at the bottom of the stair building block (11).

3. A modular prefabricated component connection structure according to claim 1, characterized in that: A pad (31) is provided between the prefabricated bracket (3) and the first stair tread (1) and the second stair tread (2); the pad (31) is used to fixedly connect the prefabricated bracket (3) and the first stair tread (1) and the second stair tread (2) via connecting bolts.

4. A modular prefabricated component connection structure according to claim 3, characterized in that: The upper contour of the prefabricated bracket (3) fits the connection position between the first stair tread (1) and the second stair tread (2).

5. A modular prefabricated component connection structure according to claim 1, characterized in that: A drainage channel (13) parallel to the inclination direction of the first stair slab (1) is provided inside the first stair slab (1), and vertical drainage holes (14) connected to the drainage channel (13) are provided on the surface of each stair block (11).

6. A modular prefabricated component connection structure according to claim 5, characterized in that: The drainage hole (14) of the staircase block (11) at the top of the first staircase board (1) is a through hole, which is located between two groups of connecting bolts, and the bottom of the through hole is sealed by a plug (141) and a curing agent.

7. A modular prefabricated component connection structure according to claim 5, characterized in that: A horizontal connection hole is provided between the drainage hole (14) in the stair block (11) at the top of the first stair tread (1) and the drainage channel in the positioning portion at the bottom of the second stair tread (2), and a sealing sleeve (15) is installed in the connection hole.

Images