General electrical bottom box for fabricated building

Abstract

The utility model relates to a general electrical bottom box for a fabricated building, which comprises an electrical bottom box body with an opening structure at the top, an electrical bottom box cover plate is arranged at the top of the electrical bottom box body, and the external size of the electrical bottom box cover plate is matched with the internal size of the electrical bottom box body. The inner wall, close to the top of the electrical bottom box body, of the electrical bottom box body is provided with a containing protruding strip, the outer surfaces of the four sides of the electrical bottom box body are each provided with two knock-off holes, the bottom of the electrical bottom box body is provided with an installation plate, and the four sides of the surface of the installation plate are each provided with an installation hole. The top of the electrical bottom box body is plugged through the electrical bottom box cover plate, then concrete is poured to the lower edge of the knock-off hole, the electrical bottom box body is hoisted to a floor after being solidified, the knock-off hole is knocked off according to needs, then the pipe joint and the lock nut are installed, and the wire pipe is connected, so that the pipe joint and the lock nut can be installed according to actual needs, and materials are saved; the waste of manpower caused by secondary plugging of redundant unused pipe joints on the electrical bottom box is avoided, and the risk of slurry leakage is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of fabricated building construction, and specifically relates to a general type electrical bottom box for fabricated building. BACKGROUND

[0002] In recent years, under the policy guidance of the state and local governments, fabricated buildings have been vigorously developed, the proportion of fabricated buildings in newly built buildings in various places has increased year by year, and fabricated buildings have become the main development direction of residential buildings.

[0003] The prefabricated monolithic structure refers to the production of part of the structural components in the factory, such as prefabricated outer walls, prefabricated inner partition walls, semi-prefabricated terraces, semi-prefabricated floors, semi-prefabricated beams, prefabricated stairs and other prefabricated components. After the prefabricated components are transported to the site, they are combined with the main vertical load-bearing components (prefabricated or cast-in-place beams, columns, shear walls and other prefabricated components) through the cast-in-place floor slab to form a monolithic structure system. During the casting process of the composite layer of the floor slab, the mechanical and electrical bottom box pre-embedding construction is involved.

[0004] For the construction process of embedding the electrical bottom box in the fabricated building composite floor slab, the current fabricated building composite floor slab production and construction process is as follows:

[0005] 1. According to the standard floor size in the detailed drawing, the mold is produced, and after the mold is assembled, the steel bars are bound in the mold;

[0006] 2. After knocking off the cover plate of the knock-off hole of the electrical bottom box, the pipe joint and lock nut are installed, and the pipe joint is sealed with a pipe plug to prevent pipe blockage during concrete pouring;

[0007] 3. According to the electrical drawing, the line is positioned on the template, and the electrical bottom box is fixed on the template through self-tapping screws;

[0008] 4. Pour concrete to the lower edge of the pipe joint, and after curing to a certain strength, transport to the construction site and hoist to the floor;

[0009] 5. Clean out the sealing pipe plug of the pipe joint of the electrical bottom box on the composite floor precast layer, and arrange the wire pipe according to the electrical drawing and connect it to the pipe joint;

[0010] 6. Pour concrete to the design elevation on the composite floor precast layer again, and pour it into a whole with other components.

[0011] The fabricated bathroom production and construction process has the following problems:

[0012] Because the prefabricated layer of the laminated slab is processed in batches in the factory, it is difficult to distinguish the lifting position and direction when lifting on site, therefore, the eight knock-off holes on the four surfaces of the electrical bottom box are usually installed with pipe joints and lock nuts when the electrical bottom box is pre-buried in the factory. After lifting on site, the pipe joints on the electrical bottom box are connected with pipes according to the electrical drawing, and the remaining unused pipe joints are sealed with pipe plugs and adhesive tape to avoid leakage during pouring of concrete. This method wastes a large amount of materials and labor. Content of the utility model

[0013] The utility model aims at providing a general type electrical bottom box for fabricated building, which can install pipe joints and lock nuts according to actual needs, save materials, avoid secondary plugging of the unused pipe joints on the electrical bottom box, save labor, and reduce the risk of leakage.

[0014] To achieve the above-mentioned purpose, the technical scheme of the utility model is as follows.

[0015] A general type electrical bottom box for fabricated building, comprising an electrical bottom box body with an open top structure, wherein the top of the electrical bottom box body is provided with an electrical bottom box cover plate, the outer dimension of the electrical bottom box cover plate is matched with the inner dimension of the electrical bottom box body, the inner wall of the electrical bottom box body near the top thereof is provided with a placement protruding strip, two knock-off holes are formed in each of the four side outer surfaces of the electrical bottom box body, an installation plate is installed at the bottom of the electrical bottom box body, and installation holes are formed in the four sides of the surface of the installation plate.

[0016] Therefore, the top of the electrical bottom box body is sealed by the electrical bottom box cover plate, then concrete is poured to the lower edge of the knock-off hole, the electrical bottom box body is hoisted to the floor after solidification, then the electrical bottom box cover plate is removed, the pipe joints and lock nuts are installed according to the line pipe direction in the electrical drawing, the line pipe is connected, the electrical bottom box cover plate is installed on the top of the electrical bottom box body to complete sealing, and finally the concrete is poured to the design elevation on the laminated slab prefabricated layer to form an integral body with other components, so that the pipe joints and lock nuts can be installed according to actual needs, materials are saved, secondary plugging of the unused pipe joints on the electrical bottom box is avoided, labor is saved, and the risk of leakage is reduced.

[0017] Further, a lifting rod is installed on the top of the electrical bottom box cover plate, and anti-skid lines are formed on the outer surface of the lifting rod.

[0018] The setting of the lifting rod can provide a stress point, and the electrical bottom box cover plate can be easily taken out from the top of the electrical bottom box body. The setting of the anti-skid lines can increase the friction force with the hands and reduce the possibility of hand slipping.

[0019] Further, a U-shaped plate is arranged on the top of the electrical bottom box body, a screw rod is threaded through the inside of the U-shaped plate, and a pressing block is installed at the bottom of the screw rod.

[0020] The rotating screw can drive the pressing block to press against the top of the lifting rod, so that the electrical bottom box cover plate can be pressed against the placement protrusion for fixation, avoiding the situation that the electrical bottom box cover plate falls off during transportation to the construction site and hoisting, and improving the sealing between the electrical bottom box cover plate and the placement protrusion, avoiding the situation that slurry leaks during pouring, and the lifting rod is arranged at the center position of the upper surface of the electrical bottom box cover plate, so that the fixation and sealing of the electrical bottom box cover plate can be realized by only tightening one screw, compared with the traditional way of installing screws at four corners, the disassembly and assembly are faster, and the construction efficiency can be improved in the case of batch operation.

[0021] Further, two grooves are arranged on the upper surface of the electrical bottom box body, and two sliding blocks are arranged in the two grooves, and the two sliding blocks are connected to the bottoms of the two sides of the U-shaped plate.

[0022] Through the arrangement of the grooves and the sliding blocks, the U-shaped plate can slide on the top of the electrical bottom box body to change its position, so that the electrical bottom box cover plate can be disassembled and assembled, and the pipe joint and the lock nut can be installed, avoiding being blocked by the U-shaped plate.

[0023] Further, a knob is arranged on the top of the screw, and an anti-slip protrusion is arranged on the outer surface of the knob.

[0024] Through the arrangement of the knob and the anti-slip protrusion, the screw can be tightened, so that the electrical bottom box cover plate can be pressed against the placement protrusion to improve the sealing effect. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a three-dimensional structure schematic diagram of the utility model;

[0026] Figure 2 It is a top view structure schematic diagram of the utility model;

[0027] Figure 3 It is a structure schematic diagram of the electrical bottom box body in the utility model;

[0028] Figure 4 It is a cross-sectional structure schematic diagram of the utility model in the application state.

[0029] In the drawing: 100, electrical bottom box body; 101, electrical bottom box cover plate; 102, placement protrusion; 103, knock-off hole; 104, mounting plate; 105, mounting hole; 200, lifting rod; 300, U-shaped plate; 301, screw; 302, pressing block; 400, groove; 500, knob. DETAILED DESCRIPTION

[0030] The utility model will be described in detail below in combination with the drawings.

[0031] As Figures 1-4As shown, a general type of prefabricated building electrical bottom box, including an electrical bottom box body 100 with an open top structure, an electrical bottom box cover plate 101 is arranged on the top of the electrical bottom box body 100, the outer dimension of the electrical bottom box cover plate 101 is matched with the inner dimension of the electrical bottom box body 100, a placing convex strip 102 is arranged on the inner wall of the top of the electrical bottom box body 100, two knock-off holes 103 are arranged on the four sides of the outer surface of the electrical bottom box body 100, and a mounting plate 104 is mounted on the bottom of the electrical bottom box body 100, and mounting holes 105 are arranged on the four sides of the surface of the mounting plate 104.

[0032] In the process of embedding the electrical bottom box body 100, first, the mold is produced according to the standard floor size in the deepening drawing, the mold is assembled, the steel bars are bound in the mold, the top of the electrical bottom box body 100 is blocked by the electrical bottom box cover plate 101, the electrical bottom box body 100 is fixed on the formwork by self-tapping screws through the mounting holes 105, then the concrete is poured to the lower edge of the knock-off hole 103, after curing to a certain strength, it is transported to the construction site and hoisted to the floor, then the electrical bottom box cover plate 101 is removed, the pipe joints and lock nuts are installed according to the line pipe direction in the electrical drawing, the line pipe is connected, the electrical bottom box cover plate 101 is installed on the top of the electrical bottom box body 100 to complete the sealing, and finally the concrete is poured to the design elevation on the composite board prefabricated layer and other components to form a whole, so that the pipe joints and lock nuts can be installed according to the actual demand, and the materials are saved; the waste of labor and the risk of leakage are reduced by avoiding the secondary sealing of the unused pipe joints on the electrical bottom box.

[0033] Specifically, the top of the electrical bottom box cover plate 101 is provided with a lifting rod 200, and the outer surface of the lifting rod 200 is provided with anti-skid lines. Through the arrangement of the lifting rod 200, a stress point can be provided, and the electrical bottom box cover plate 101 can be easily taken out from the top of the electrical bottom box body 100. Through the arrangement of the anti-skid lines, the friction with the hands can be increased, and the situation of hand slipping can be reduced.

[0034] Specifically, the top of the electrical bottom box body 100 is provided with a U-shaped plate 300, a screw rod 301 is threaded connected in the inside of the U-shaped plate 300, a pressing block 302 is installed at the bottom of the screw rod 301, the pressing block 302 can be pressed on the top of the lifting rod 200 by rotating the screw rod 301, so that the electrical bottom box cover plate 101 can be pressed and fixed on the placing convex strip 102, avoiding the situation that the electrical bottom box cover plate 101 falls off during transportation to the construction site and hoisting process, and improving the sealing between the electrical bottom box cover plate 101 and the placing convex strip 102, avoiding the situation that slurry leaks during pouring process, and the lifting rod 200 is arranged at the center position of the upper surface of the electrical bottom box cover plate 101, only one screw rod 301 needs to be tightened to realize the fixation and sealing effect of the electrical bottom box cover plate 101, compared with the traditional way of installing screws at four corners, the disassembly and assembly speed is faster, and the construction efficiency can be improved under the condition of batch operation.

[0035] Specifically, the upper surface of the electrical bottom box body 100 is provided with a sliding groove 400 on both sides, and a sliding block is arranged in the inside of each sliding groove 400, and the two sliding blocks are connected with the bottom of the two sides of the U-shaped plate 300 respectively, through the arrangement of the sliding groove 400 and the sliding block, the U-shaped plate 300 can slide on the top of the electrical bottom box body 100 to change its position, so that the electrical bottom box cover plate 101 can be conveniently disassembled and assembled, and the pipe joint and the lock nut can be conveniently installed, avoiding being blocked by the U-shaped plate 300.

[0036] Specifically, the top of the screw rod 301 is provided with a knob 500, and the outer surface of the knob 500 is provided with anti-skid protrusions, through the arrangement of the knob 500 and the anti-skid protrusions, the screw rod 301 can be conveniently tightened, so that the electrical bottom box cover plate 101 can be pressed on the placing convex strip 102, improving the sealing effect.

[0037] The above is a detailed description of the present application combined with specific embodiments, which cannot be regarded as limiting the specific embodiments of the present application to these descriptions. For ordinary skilled persons in the technical field to which the present application belongs, without departing from the concept of the present application, a number of equivalent substitutions or obvious modifications can be made, and the performance or use is the same, which should be regarded as belonging to the patent protection range determined by the submitted claims of the present application.

Claims

1. A prefabricated building general type electrical bottom box, comprising an electrical bottom box body (100) with an open top structure, characterized in that: the top of the electrical bottom box body (100) is provided with an electrical bottom box cover plate (101), the outer dimension of the electrical bottom box cover plate (101) is matched with the inner dimension of the electrical bottom box body (100), the inner wall of the electrical bottom box body (100) near the top is provided with a placing convex strip (102), two knock-off holes (103) are formed on the outer surface of each side of the electrical bottom box body (100), and a mounting plate (104) is mounted on the bottom of the electrical bottom box body (100), mounting holes (105) are formed on the surface of each side of the mounting plate (104).

2. The prefabricated building general type electrical bottom box according to claim 1, characterized in that: the top of the electrical bottom box cover plate (101) is mounted with a lifting rod (200), and anti-skid lines are formed on the outer surface of the lifting rod (200).

3. The prefabricated building general type electrical bottom box according to claim 2, characterized in that: the top of the electrical bottom box body (100) is provided with a U-shaped plate (300), a screw rod (301) is threaded through and connected to the inside of the U-shaped plate (300), and a pressing block (302) is mounted on the bottom of the screw rod (301).

4. The prefabricated building general type electrical bottom box according to claim 3, characterized in that: two slide grooves (400) are formed on the upper surface of the electrical bottom box body (100), and a slide block is arranged in each of the two slide grooves (400), and the two slide blocks are respectively connected with the bottom of each side of the U-shaped plate (300).

5. The prefabricated building general type electrical bottom box according to claim 4, characterized in that: a knob (500) is mounted on the top of the screw rod (301), and anti-skid protrusions are arranged on the outer surface of the knob (500). ​ ​ ​ ​ ​

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