Fabricated building connecting device

Abstract

The utility model relates to the technical field of assembly type buildings, and discloses an assembly type building connecting device which comprises a pouring platform, the upper end of the pouring platform is connected with an assembly structure, and the lower end of the assembly structure is provided with a fixing assembly. The assembly structure comprises an assembly concrete wall plate, dovetail blocks are connected to the two ends of the assembly concrete wall plate, concave dovetail grooves are formed in the two sides of the assembly concrete wall plate, outer side decoration plates are installed on the outer side of the assembly concrete wall plate, and assembly steel plates are connected to the two ends of the assembly concrete wall plate. Grooves are formed in the two ends of the assembly steel plate. According to the assembly structure, all the assembly concrete wallboards are rapidly assembled, the assembly efficiency is higher during use, operation and use are convenient, and the assembly steel plates are stably fixed to the pouring platform through the arranged fixing assemblies, so that the assembly steel plates are more stable during use.

Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated buildings, in particular to a connecting device for prefabricated buildings. Background Technique

[0002] A prefabricated building refers to a building in which a large amount of on-site operation work in the traditional construction method is transferred to a factory. Building components and fittings are processed and manufactured in the factory and transported to the construction site of the building, and then assembled and installed on-site through reliable connection methods.

[0003] With the acceleration of the urbanization process, the construction industry has developed rapidly. As a new type of building form, prefabricated buildings have the advantages of fast construction speed, energy conservation and environmental protection. Therefore, it is necessary to design and develop a connecting device for prefabricated buildings for convenient application.

[0004] Chinese Patent Publication No.: CN214061963U discloses "A Connecting Device for Prefabricated Buildings", in particular to a connecting device for prefabricated buildings, including a floor slab and an I-beam embedded in the floor slab. There are two groups of the floor slabs, which are arranged horizontally up and down. A wall panel is arranged between the two groups of floor slabs. The wall panel includes a gypsum board, a decorative panel, a polystyrene board and a wire mesh foam board. The wire mesh foam boards are clamped on both sides of the polystyrene board. A waterproof brick is arranged below the polystyrene board and the wire mesh foam board. A gypsum board is arranged outside the wire mesh foam board, and a decorative panel is arranged outside the gypsum board. An expansion jacket is arranged above the wall panel, and a fixed base is arranged below the wall panel. The expansion jacket and the fixed base are respectively embedded in the floor slab. The device adds a fixed base at the bottom end of the wall panel to improve the stability and waterproof and airtightness of the wall panel. At the same time, the assembly gap is increased through the expansion jacket at the upper end of the wall panel to avoid the wall panel from expanding due to heat and thus generating cracks, which affects the aesthetics and waterproofness.

[0005] In the above-mentioned prior art, a fixed base is arranged below the wall panel, and the expansion jacket and the fixed base are respectively embedded in the floor slab. The device adds a fixed base at the bottom end of the wall panel to improve the stability and waterproof and airtightness of the wall panel. At the same time, the assembly gap is increased through the expansion jacket at the upper end of the wall panel to avoid the wall panel from expanding due to heat and thus generating cracks, which affects the aesthetics and waterproofness. However, when the existing device is used, it does not have the function of quickly assembling each structural wall panel, and the assembly efficiency between the wall panels is relatively low during use, which is not conducive to installation and use to a certain extent. Content of the Utility Model

[0006] The purpose of the utility model is to provide a connecting device for prefabricated buildings to solve the problem of the lack of the function of quickly assembling each structural wall panel and the relatively low assembly efficiency between the wall panels during use as proposed in the above background technique.

[0007] To solve the above technical problems, the present utility model provides the following technical solution: an assembled building connection device, including a pouring platform, an assembly structure is connected to the upper end of the pouring platform, and a fixing component is arranged at the lower end of the assembly structure;

[0008] The assembly structure includes assembled concrete wall panels, dovetail blocks are connected to both ends of the assembled concrete wall panels, concave dovetail grooves are arranged on both sides of the assembled concrete wall panels, and an outer decorative panel is installed on the outer side of the assembled concrete wall panels. Assembly steel plates are connected to both ends of the assembled concrete wall panels, grooves are opened at both ends of the assembly steel plates, and convex blocks are arranged on both sides of the assembly steel plates;

[0009] The fixing component includes a connecting plate, a second groove is opened at the upper end of the pouring platform, expansion bolts are arranged on both sides of the connecting plate, a vertical groove is arranged on the outer side of the connecting plate, and a bolt is installed on one side of the connecting plate. One end of the bolt is connected with a nut, and transverse grooves are arranged at both ends of the bolt, and a grouting port is arranged on one side of the vertical groove.

[0010] Preferably, the dovetail blocks are fixedly arranged at both ends of the assembled concrete wall panels, the concave dovetail grooves are multiple groups, and multiple groups of the concave dovetail grooves are equidistantly distributed on both sides of the assembled concrete wall panels.

[0011] Preferably, the outer decorative panels are fixedly arranged on both sides of the assembled concrete wall panels, and the assembly steel plates match the assembled concrete wall panels.

[0012] Preferably, the grooves match the dovetail blocks, and the convex blocks match the concave dovetail grooves.

[0013] Preferably, the connecting plate and the pouring platform are detachably connected by expansion bolts, and the vertical groove matches the connecting plate.

[0014] Preferably, a transverse groove is opened on one side of the assembly steel plate, a vertical groove is opened at one end of the assembly steel plate, the bolts are multiple groups, and multiple groups of the bolts are equidistantly distributed on the connecting plate.

[0015] Preferably, screw holes matching the bolts are opened inside the connecting plate, and the grouting port is communicated with the vertical groove.

[0016] Compared with the prior art, the beneficial effects achieved by the present utility model are:

[0017] First, through the provided assembly structure of the present utility model, the rapid assembly of each assembled concrete wall panel is realized. During use, the assembly efficiency between the wall panels is higher, which is convenient for operation. By setting the dovetail blocks and concave dovetail grooves on the assembled concrete wall panels to match the grooves and convex blocks on the assembly steel plates, the stability of the assembly structure is increased.

[0018] Second, through the fixed components provided by the present utility model, the assembled steel plate is stably fixed on the casting platform, making the assembled steel plate more stable during use. The connecting plate is fixed to the casting platform through expansion bolts, and cement mortar is injected at the second groove to prevent the expansion bolts from rusting. A plurality of sets of bolts and nuts are used to fix the assembled steel plate and the connecting plate to increase its stability. Grouting and smoothing are carried out at the transverse groove, and grouting is injected into the vertical groove through the grouting port to increase the service life of the parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural view of the present utility model;

[0020] Figure 2 is a cross-sectional view of the present utility model;

[0021] Figure 3 is a cross-sectional view of the fixed component of the present utility model;

[0022] Figure 4 is a schematic structural view of the assembled concrete wall panel of the present utility model;

[0023] Figure 5 is a schematic structural view of the connecting plate of the present utility model.

[0024] In the figure: 1, casting platform; 2, assembly structure; 201, assembled concrete wall panel; 202, dovetail block; 203, concave dovetail groove; 204, outer decorative plate; 205, assembled steel plate; 206, groove; 207, convex block; 3, fixed component; 301, connecting plate; 302, second groove; 303, expansion bolt; 304, vertical groove; 305, transverse groove; 306, bolt; 307, nut; 308, grouting port. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] Please refer to Figures 1 - 5, A prefabricated building connection device, including a pouring platform 1, an assembly structure 2 is connected to the upper end of the pouring platform 1, and a fixing component 3 is arranged at the lower end of the assembly structure 2; the assembly structure 2 includes an assembled concrete wall panel 201, dovetail blocks 202 are connected to both ends of the assembled concrete wall panel 201, concave dovetail grooves 203 are arranged on both sides of the assembled concrete wall panel 201, and an outer decorative panel 204 is installed on the outer side of the assembled concrete wall panel 201. Assembly steel plates 205 are connected to both ends of the assembled concrete wall panel 201. Grooves 206 are opened at both ends of the assembly steel plate 205, and convex blocks 207 are arranged on both sides of the assembly steel plate 205; the fixing component 3 includes a connecting plate 301, a second groove 302 is opened at the upper end of the pouring platform 1, expansion bolts 303 are arranged on both sides of the connecting plate 301, a vertical groove 304 is arranged on the outer side of the connecting plate 301, and a bolt 306 is installed on one side of the connecting plate 301. One end of the bolt 306 is connected to a nut 307, and transverse grooves 305 are arranged at both ends of the bolt 306, and a grouting port 308 is arranged on one side of the vertical groove 304.

[0027] Through the above technical solution, by setting the assembly structure 2, the rapid assembly of each assembled concrete wall panel 201 is realized. During use, the assembly efficiency between the wall panels is higher, which is convenient for operation and use. The dovetail blocks 202 and concave dovetail grooves 203 provided on the assembled concrete wall panel 201 match the grooves 206 and convex blocks 207 provided on the assembly steel plate 205, increasing the stability of the assembly structure. Through the setting of the fixing component 3, the assembly steel plate 205 is stably fixed on the pouring platform 1, making the assembly steel plate 205 more stable during use. The connecting plate 301 is fixed to the pouring platform 1 by the expansion bolts 303, and cement mortar is injected at the second groove 302 to prevent the expansion bolts 303 from rusting. Multiple groups of bolts 306 and nuts 307 are used to fix the assembly steel plate 205 and the connecting plate 301 to increase its stability. Grouting and leveling are carried out at the transverse grooves 305, and grouting is carried out through the grouting port 308 into the vertical groove 304 to increase the service life of the parts.

[0028] Specifically, the dovetail blocks 202 are fixedly arranged at both ends of the assembled concrete wall panel 201, and there are multiple groups of concave dovetail grooves 203. The multiple groups of concave dovetail grooves 203 are equidistantly distributed on both sides of the assembled concrete wall panel 201.

[0029] Through the above technical solution, the dovetail blocks 202 and the concave dovetail grooves 203 are trapezoidal structures, making the connection between the assembled concrete wall panel 201 and the assembly steel plate 205 stable and not prone to movement.

[0030] Specifically, the outer decorative panels 204 are fixedly arranged on both sides of the assembled concrete wall panel 201, and the assembly steel plate 205 matches the assembled concrete wall panel 201.

[0031] Through the above technical solution, the outer decorative plate 204 decorates the outer side of the assembled concrete wall panel 201, and the assembled steel plate 205 can completely hold the assembled concrete wall panel 201.

[0032] Specifically, the groove 206 matches the dovetail block 202, and the convex block 207 matches the concave dovetail groove 203.

[0033] Through the above technical solution, the groove 206 and the matching dovetail block 202, and the convex block 207 and the matching concave dovetail groove 203 make the special assembly structure stable and not easy to shake.

[0034] Specifically, the connecting plate 301 is detachably connected to the casting platform 1 by expansion bolts 303, and the vertical groove 304 matches the connecting plate 301.

[0035] Through the above technical solution, the connecting plate 301 is fixed on the casting platform 1 by the expansion bolts 303, and grouting is carried out and leveled at the second groove 302 to prevent the parts from rusting.

[0036] Specifically, a transverse groove 305 is formed on one side of the assembled steel plate 205, a vertical groove 304 is formed at one end of the assembled steel plate 205, there are multiple groups of bolts 306, and the multiple groups of bolts 306 are evenly distributed on the connecting plate 301.

[0037] Through the above technical solution, grouting and leveling are carried out at the transverse groove 305 to prevent the parts from rusting, and the connecting plate 301 and the assembled steel plate 205 are connected by multiple groups of bolts 306 and nuts 307.

[0038] Specifically, screw holes matching the bolts 306 are formed inside the connecting plate 301, and the grouting port 308 communicates with the vertical groove 304.

[0039] Through the above technical solution, the grouting port 308 injects cement mortar into the vertical groove 304 to reduce the gap, make the fixing structure stable, protect the fixing parts at the same time, and increase the service life.

[0040] In use, when it is necessary to fix the assembled steel plate 205 on the casting platform 1, place the connecting plate 301 at the second groove 302, install the expansion screw 303 to fix the connecting plate 301 on the casting platform 1, insert the assembled steel plate 205 at the upper end of the connecting plate 301, pass the bolt 306 through the connecting plate 301, tighten the nut 307 with the bolt 306, inject cement mortar into the vertical groove 304 through the grouting port 308, and grout and level the second groove 302 and the transverse groove 305, then the assembled steel plate 205 is fixed on the casting platform 1. When it is necessary to assemble the precast concrete wall panel 201, use a crane to lift the precast concrete wall panel 201 to the upper end of the assembled steel plate 205, align the dovetail block 202 with the groove 206, and align the convex block 207 with the concave dovetail groove 203, so that the precast concrete wall panel 201 slides into the assembled steel plate 205 for rapid assembly of the precast concrete wall panel 201.

[0041] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit, and the scope is defined by the appended claims and their equivalents.

Claims

1. An assembled building connection device, comprising a casting platform (1), characterized in that: The upper end of the casting platform (1) is connected with an assembly structure (2), and a fixing component (3) is arranged at the lower end of the assembly structure (2); The assembly structure (2) includes an assembled concrete wall panel (201). Dovetail blocks (202) are connected to both ends of the assembled concrete wall panel (201). Concave dovetail grooves (203) are arranged on both sides of the assembled concrete wall panel (201). An outer decorative plate (204) is installed on the outer side of the assembled concrete wall panel (201). Assembled steel plates (205) are connected to both ends of the assembled concrete wall panel (201). Grooves (206) are formed at both ends of the assembled steel plate (205), and convex blocks (207) are arranged on both sides of the assembled steel plate (205); The fixing component (3) includes a connecting plate (301). A second groove (302) is formed at the upper end of the casting platform (1). Expansion bolts (303) are arranged on both sides of the connecting plate (301). A vertical groove (304) is arranged on the outer side of the connecting plate (301). A bolt (306) is installed on one side of the connecting plate (301). A nut (307) is connected to one end of the bolt (306). Transverse grooves (305) are arranged at both ends of the bolt (306). A grouting port (308) is arranged on one side of the vertical groove (304).

2. The prefabricated building connection device according to claim 1, wherein: The dovetail blocks (202) are fixedly arranged at both ends of the assembled concrete wall panel (201). The concave dovetail grooves (203) are in multiple groups, and the multiple groups of concave dovetail grooves (203) are equidistantly distributed on both sides of the assembled concrete wall panel (201).

3. The prefabricated building connection device according to claim 1, characterized in that: The outer decorative plates (204) are fixedly arranged on both sides of the assembled concrete wall panel (201). The assembled steel plates (205) are matched with the assembled concrete wall panels (201).

4. The prefabricated building connection device according to claim 1, characterized in that: The grooves (206) are matched with the dovetail blocks (202), and the convex blocks (207) are matched with the concave dovetail grooves (203).

5. The prefabricated building connection device according to claim 1, characterized in that: The connecting plate (301) and the casting platform (1) are detachably connected by expansion bolts (303), and the vertical groove (304) is matched with the connecting plate (301).

6. The prefabricated building connection device according to claim 1, characterized in that: A transverse groove (305) is formed on one side of the assembled steel plate (205), and a vertical groove (304) is formed at one end of the assembled steel plate (205). The bolts (306) are in multiple groups, and the multiple groups of bolts (306) are equidistantly distributed on the connecting plate (301).

7. The prefabricated building connection device according to claim 1, characterized in that: Screw holes matched with the bolts (306) are formed inside the connecting plate (301), and the grouting port (308) is communicated with the vertical groove (304).

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