Telescopic prefabricated stair embedded part fixing device

Abstract

A fixing device for an embedded part of a telescopic prefabricated stair is fixed in a hole of an aluminum template (6) to fix an embedded bolt of the prefabricated stair, and is made of reinforcing steel bars on a construction site, waste steel pipes and pins (102) of the aluminum template (6). Comprising fixing assemblies (1), an adjustable limiting stopper (2), a telescopic framework device (3) and a telescopic fixing device (4), the adjustable limiting stopper (2) and the telescopic framework device (3) are arranged outside the telescopic framework device (3), and the fixing assemblies (1) are arranged at the bottoms of the two ends of the telescopic framework device (3); the reinforcing steel bar waste and the aluminum formwork (6) miscellaneous materials can be used through simple welding, and the reinforcing steel bar waste and the aluminum formwork (6) miscellaneous materials are made of metal materials and have the advantages of being convenient and reliable to assemble and disassemble. And the situation that the subsequent prefabricated staircase cannot be installed due to position deviation of the embedded bolts after concrete pouring is completed is avoided, and the installation efficiency and the qualification rate of the on-site prefabricated staircase are improved.

Description

Technical Field

[0001] The present invention belongs to the field of construction engineering construction, and particularly provides a telescopic precast staircase embedded bolt fixing device. Background Art

[0002] During the on-site construction process, after the embedded bolts are installed, during the concrete pouring process, due to the disturbance of the vibrating rod or the collision caused by human factors, the embedded bolts are displaced. The production and use of the embedded bolt fixing device can effectively avoid the displacement phenomenon of the embedded bolts during the concrete pouring process after installation. Summary of the Invention

[0003] The purpose of the present utility model is to provide a telescopic precast staircase embedded part fixing device to solve the problems existing in the background art.

[0004] The technical solution of the present utility model is as follows:

[0005] A telescopic precast staircase embedded part fixing device, which is fixed in the 6-hole of the aluminum formwork to fix the embedded bolts of the precast staircase, and is made of on-site steel bars, steel pipe waste and the 6-pin 102 of the aluminum formwork. It includes a fixing component 1, an adjustable limiter 2, a telescopic skeleton device 3 and a telescopic fixing device 4. The adjustable limiter 2 and the telescopic skeleton device 3 are arranged outside the telescopic skeleton device 3, and the fixing components 1 are arranged at the bottoms of both ends of the telescopic skeleton device 3.

[0006] The fixing component 1 includes a pin piece 101 and a fixing pin 102. The fixing pin 102 is welded to the bottom of the telescopic skeleton device 3, and then the pin 102 is fixed to the aluminum formwork 6 with a pin piece.

[0007] The adjustable limiter 2 includes a φ8 steel bar 201, a steel pipe 202, a first nut 203 and a bolt 204. Two φ8 steel bars 201 are welded to the left and right sides of the bottom of the φ8 steel bar 201. A hole is opened at the top of the steel pipe 202, and the first nut 203 is welded at the hole opening at the top. The bolt 204 is installed on the first nut 203, and the whole can be freely adjusted and fixed on the telescopic skeleton device 3.

[0008] The telescopic skeleton device 3 includes a φ14 steel bar 301 and a φ20 steel pipe 302; the φ14 steel bar 301 is inserted into the φ20 steel pipe 302 and can be freely telescoped, and is fixed by the telescopic fixing device 4; the use range of the telescopic skeleton device 3 is from 55 cm to 100 cm.

[0009] The telescopic fixing device 4 includes a second nut 401 and a bolt 402; a hole is opened at the top of the φ20 steel pipe 302, the second nut 401 is welded at the hole opening, and the position is fixed by tightening the bolt 402.

[0010] Optimized: The retractable skeleton device 3 only needs to be inserted into the pin hole 7 of the aluminum formwork 6 and can be fixed by fastening with a pin 102.

[0011] Optimized: The adjustable limiter 2 can be adjusted at any position on the retractable skeleton device 3; specifically, after the limiter is placed in a suitable position, tighten the bolt to play a fixing role.

[0012] The beneficial effects of the present utility model are as follows:

[0013] Analyzed from the material aspect, some of the stress-bearing materials of a pre-embedded bolt fixing device are made of metal materials, which have the advantages of high strength and not being easily deformed, and the fixed bolts are not easily deformed to cause the pre-embedded bolts to shift.

[0014] Analyzed from the construction technology aspect, a pre-embedded bolt fixing device is fixed with a pin 102 to the pin hole 7 of the aluminum formwork 6, which is convenient, reliable, and has strong applicability. It can be used repeatedly. It can be tightened and used after the main aluminum formwork 6 is installed, avoiding the situation that the pre-embedded bolt position shifts after the concrete is poured, resulting in the inability to install the precast staircase, and improving the installation efficiency and qualification rate of the on-site precast staircase.

[0015] Analyzed from the economic benefit aspect, a pre-embedded bolt fixing device is made of waste steel bars and miscellaneous materials of the aluminum formwork 6, reducing the production cost, improving the resource utilization rate, and facilitating the material collection. It greatly reduces the incidence of pre-embedded bolt displacement, indirectly saving the total construction cost while improving the construction quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a top view structural schematic diagram of the present utility model;

[0017] Figure 2 It is a front view structural schematic diagram of the present utility model;

[0018] Figure 3 It is a structural schematic diagram of the fixing component 1 of the present utility model;

[0019] Figure 4 It is a structural schematic diagram of the adjustable limiter 2 of the present utility model;

[0020] Figure 5 It is a structural schematic diagram of the retractable skeleton device 3 of the present utility model;

[0021] Figure 6 It is a structural schematic diagram of the telescopic fixing device 4 of the present utility model;

[0022] Figures 7 - 8 It is a BIM model schematic diagram of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Embodiment 1

[0024] A fixing device for telescopic precast staircase embedded parts. This device is fixed in the 6-hole of the aluminum formwork to fix the embedded bolts of the precast staircase, and is made of on-site steel bars, steel pipe waste and the 6-pin 102 of the aluminum formwork.

[0025] The fixing device for telescopic precast staircase embedded parts includes a fixing component 1, an adjustable stopper 2, a telescopic skeleton device 3 and a telescopic fixing device 4. The adjustable stopper 2 and the telescopic skeleton device 3 are arranged outside the telescopic skeleton device 3, and the fixing components 1 are arranged at the bottom ends of the telescopic skeleton device 3.

[0026] The fixing component 1 includes a pin piece 101 and a fixing pin 102. The fixing pin 102 is welded to the bottom of the telescopic skeleton device 3, and then the pin 102 is fixed to the aluminum formwork 6 with a pin piece.

[0027] The adjustable stopper 2 includes a φ8 steel bar 201, a steel pipe 202, a first nut 203 and a bolt 204. Two φ8 steel bars 201 are welded to the left and right sides of the bottom of the φ8 steel bar 201. A hole is opened at the top of the steel pipe 202, and the first nut 203 is welded at the hole opening at the top. The bolt 204 is installed on the first nut 203, and the whole is freely adjusted and fixed on the telescopic skeleton device 3.

[0028] The telescopic skeleton device 3 includes a φ14 steel bar 301 and a φ20 steel pipe 302; the φ14 steel bar 301 is inserted into the φ20 steel pipe 302 and can be freely telescoped, and is fixed by the telescopic fixing device 4; the using range of the telescopic skeleton device 3 is from 55 cm to 100 cm.

[0029] The telescopic fixing device 4 includes a second nut 401 and a bolt 402; a hole is opened at the top of the φ20 steel pipe 302, the second nut 401 is welded at the hole opening, and the position is fixed by tightening the bolt 402.

[0030] The telescopic skeleton device 3 only needs to be inserted into the pin hole 7 of the aluminum formwork 6 and can be fixed by fastening with the pin 102.

[0031] The adjustable stopper 2 is adjusted at any position on the telescopic skeleton device 3; specifically, after the stopper is placed at a suitable position, the bolt is tightened to play a fixing role.

[0032] Example 2

[0033] Scalable precast staircase embedded part fixing device, including fixing pin 102, pin piece 101, bolt fixing assembly 1, framework steel bars, steel casing, bolts and nuts. Among them, the framework steel bars use threaded steel with a diameter of 14mm and a length generally of 550mm. The steel casing uses a steel pipe with a diameter of 20mm and a thickness of 2mm, and the length is generally 550mm, which can be specifically determined according to construction requirements. The pin 102 and the pin piece 101 adopt the matching dimensions of the aluminum formwork 6. The limiting device is made and welded with bolts, nuts, steel sleeves and φ8 steel bars. Specifically, a hole with a diameter of φ10mm is drilled in the steel casing, then the nut is welded at the hole opening, and then the bolt is fixed on the nut.

[0034] After the framework steel bars are fabricated by welding using steel bars with a diameter of 14mm and a steel casing with a diameter of 20mm according to the figure, then the pin 102 is welded to the bottom of the fixing device steel bars. At this time, the fixing device is fabricated.

[0035] During use, insert the end with the pin 102 into the corresponding pin 102 hole of the aluminum formwork 6, and then fix the pin 102 with the pin piece 101. And clamp the embedded bolt onto the limiter and fix it firmly with binding wire, then it can be used normally. Ensure that the position of the embedded bolt does not shift.

[0036] Matters not covered by this invention are well-known technologies.

[0037] The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose is to enable those who are familiar with this technology to understand the content of the present invention and implement it accordingly, and it cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit and essence of the present invention should be covered within the protection scope of the present invention.

Claims

1. A telescopic precast staircase embedded part fixing device, characterized in that, It includes a fixed component (1), an adjustable stopper (2), a telescopic framework device (3), and a telescopic fixing device (4). The adjustable stopper (2) and the telescopic framework device (3) are arranged outside the telescopic framework device (3). Fixed components (1) are arranged at the bottoms of both ends of the telescopic framework device (3). Among them: The fixed component (1) includes a pin piece (101) and a fixed pin (102). The fixed pin (102) is welded to the bottom of the telescopic framework device (3), and then the pin (102) is fixed to the aluminum formwork (6) with a pin piece. The adjustable stopper (2) includes a φ8 steel bar (201), a steel pipe (202), a first nut (203), and a bolt (204). Two φ8 steel bars (201) are welded to the left and right sides of the bottom of the φ8 steel bar (201). A hole is drilled at the top of the steel pipe (202), and the first nut (203) is welded at the drilled hole at the top. The bolt (204) is installed on the first nut (203), and the whole can be freely adjusted and fixed on the telescopic framework device (3). The telescopic framework device (3) includes a φ14 steel bar (301) and a φ20 steel pipe (302). The φ14 steel bar (301) is inserted into the φ20 steel pipe (302) and can be freely telescoped and fixed by the telescopic fixing device (4). The application range of the telescopic framework device (3) is from 55 cm to 100 cm. The telescopic fixing device (4) includes a second nut (401) and a bolt (402). A hole is drilled at the top of the φ20 steel pipe (302), the second nut (401) is welded at the drilled hole, and the position is fixed by tightening the bolt (402).

2. The telescopic precast staircase embedded part fixing device according to claim 1, characterized in that: The telescopic framework device (3) only needs to be inserted into the pin hole (7) of the aluminum formwork (6) and can be fixed by tightening the pin (102).

3. The retractable precast staircase embedded part fixing device according to claim 1, characterized in that: The adjustable stopper (2) can be adjusted to any position on the telescopic framework device (3). Specifically, after placing the stopper in a suitable position and tightening the bolt, it can play a fixing role.

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