A retractable, foldable, quick-detachable frame beam template fixture and construction method thereof

Abstract

The present invention provides a retractable, foldable, quick-detachable frame beam template clamp, including a telescopic joint, a positioning bolt, a positioning bolt nut, a rotating fixing bolt and a nut; the telescopic joint has four groups, each group of telescopic joints is two square steel pipes that are rotatably connected by the rotating fixing bolt and nut; the four groups of telescopic joints are assembled into a quadrilateral clamp with an opening through three pairs of positioning bolts and positioning bolt nuts to fasten the frame beam template. The present invention can be customized in the factory or processed on site according to the requirements of the cross-sectional size of the frame beam in the structural design, is simple to manufacture, convenient to use, the telescopic stroke can be manufactured according to the requirements and can be used for beams of different cross-sectional sizes, has high strength, is convenient to transport, has low raw material cost, and all accessories can be recycled after being discarded.

Description

Technical Field

[0001] The invention relates to the technical field of construction engineering structure quality and safety, and in particular to a retractable, foldable, quick-detachable frame beam template clamp and a construction method thereof. Background Art

[0002] When a building is constructed with a cast-in-place reinforced concrete frame structure, a cast-in-place frame beam structure will appear. A cast-in-place frame beam means that both the column and the floor are cast in place. Generally, the column is cast in place, and after the floor formwork and floor reinforcement are installed and the beam reinforcement is tied, the beam and the cover are cast together. When the side formwork of the cast-in-place outer frame beam is set up, since the side formwork of the outer frame beam cannot be reinforced, the construction site will use the building's external frame as a support point to reinforce the outer formwork of the outer frame beam. During the reinforcement, the "inner and outer frame" connection phenomenon will appear, and the specification requirements clearly state that the "inner and outer frame" connection is strictly prohibited.

[0003] In view of this, the present invention is proposed. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a new fastening device for frame beam formwork to solve the problems of complicated fastening and poor integrity of structural frame beam formwork in existing construction projects, while reducing the impact of different personnel qualities on the quality of finished products during the construction process.

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is: a retractable, foldable, quick-detachable frame beam formwork clamp, including an expansion joint, a positioning bolt, a positioning bolt nut, a rotating fixing bolt and a nut; the expansion joint has four groups, and each group of expansion joints is two square steel pipes rotatably connected by the rotating fixing bolt and the nut; the four groups of expansion joints are assembled into a quadrilateral clamp with an opening through three pairs of the positioning bolts and the positioning bolt nuts to fasten the frame beam formwork.

[0006] Preferably, it also includes tension bolts and nuts, tension fastening bolts, and template positioning nuts; the expansion joints on both sides of the opening of the quadrilateral clamp and their opposite sides each pass through one of the tension fastening bolts, and the frame beam template is made to reach a specified size by tightening the tension bolts and nuts from both sides inward; the frame beam template is controlled to a specified size by tightening the template positioning nuts from the inside to both sides.

[0007] Preferably, the quadrilateral clamp can be separated into two independent clamps by unscrewing a pair of positioning bolts and positioning bolt nuts on opposite sides of the opening of the quadrilateral clamp.

[0008] Preferably, the expansion joint is a galvanized square steel tube, and other parts are made of metal.

[0009] The present invention further provides a construction method of a retractable, foldable, quick-detachable frame beam template fixture, comprising the following steps:

[0010] Step 1: Check the drawings related to the building structure and determine the cross-sectional dimensions of the frame beam to be implemented;

[0011] Step 2: Determine the size of the frame beam template and the outer keel of the template, and adjust the fixture to the appropriate size after determining the size;

[0012] Step 3, adjust the size of the expansion joint and tighten the positioning bolt and positioning bolt nut;

[0013] Step 4, place the clamp with adjusted size on the frame beam template that needs to be tightened, adjust the tightness of the tension bolts, tension tightening bolts, and template positioning nuts to tighten the frame beam template.

[0014] After adopting the above technical scheme, the present invention has the following beneficial effects compared with the prior art: the present invention can be customized in the factory or processed on site according to the requirements of the structural design for the cross-sectional size of the frame beam. It is simple to manufacture and easy to use. The telescopic stroke can be manufactured according to the requirements and can be used for beams with different cross-sectional sizes. It has high strength, convenient transportation, low raw material cost, and all accessories can be recycled after being discarded. The present invention has a simple structure, simple operation, and accurate control of the specifications of the frame beam, which makes the integrity of the frame beam template better, light weight, and high strength. The telescopic, foldable, and quick-disassembly functions are convenient for rapid adjustment and use of beams with different cross-sectional sizes during construction. During transportation, it can be "unfolded into steel sections and folded into devices", which is convenient for turnover and has a wide range of applications. It does not require mechanical equipment to assist in construction. It is not affected by weather during installation and use, which ensures that the size of the frame beam meets quality requirements after later inspection. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention;

[0016] Figure 2 It is an illustration diagram of the use of the present invention;

[0017] Figure 3 It is a schematic diagram of an independent clamp that is split according to the present invention;

[0018] Figure 4 is a schematic diagram of another independent clamp split by the present invention;

[0019] Figure 5 It is a schematic diagram of a set of expansion joints without positioning bolts and positioning bolt nuts of the present invention;

[0020] Figure 6 It is a schematic diagram of a set of telescopic joints of opposite sides of a quadrilateral clamp opening of the present invention;

[0021] Figure 7 is a schematic diagram of another two sets of expansion joints with the same structure according to the present invention;

[0022] Figure 8 This is a schematic diagram of the four sets of telescopic joints of the present invention after they are connected and before they are folded;

[0023] In the figure: 1- expansion joint; 2- positioning bolt; 3- positioning bolt nut; 4- rotating fixing bolt and nut; 5- tension bolt nut; 6- tension fastening bolt; 7- formwork positioning nut; 8- concrete slab; 9- concrete beam; 10- frame beam formwork; 11- outer keel of formwork. DETAILED DESCRIPTION

[0024] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments to help understand the content of the present invention.

[0025] like Figure 1 and Figure 2 As shown, the present invention is composed of four sets of expansion joints 1, three positioning bolts 2, three positioning bolt nuts 3, four rotating fixing bolts and nuts 4, four tensioning fastening bolts and nuts 5, two tensioning fastening bolts 6, and two template positioning nuts 7.

[0026] A retractable, foldable, quick-detachable frame beam template clamp, including an expansion joint 1, a positioning bolt 2, a positioning bolt nut 3, a rotating fixing bolt and a nut 4; the expansion joint 1 has four groups, and each group of expansion joints 1 is two square steel pipes that are rotatably connected by the rotating fixing bolt and nut 4; the four groups of expansion joints 1 are assembled into a quadrilateral clamp with an opening through three pairs of positioning bolts 2 and positioning bolt nuts 3 to fasten the frame beam template. It also includes tension bolts and nuts 5, tension fastening bolts 6, and template positioning nuts 7; the expansion joints 1 on both sides of the opening of the quadrilateral clamp and their opposite sides each pass through one tension fastening bolt 6, and the tension bolts and nuts 5 are tightened inward from both sides to make the frame beam template reach the specified size; the template positioning nuts 7 are tightened from the inside to both sides to control the frame beam template to the specified size.

[0027] like Figure 3 and Figure 4 As shown, the pair of positioning bolts 2 and positioning bolt nuts 3 on the opposite sides of the opening of the quadrilateral clamp are unscrewed to separate the clamps into two independent clamps. The expansion joint 1 is a galvanized square steel pipe, and the other parts are made of metal.

[0028] In this embodiment, the square steel pipe of the expansion joint 1 is composed of four square steel pipes with an outer diameter of 25mm*25mm, a wall thickness of 2mm and a length of 250mm, three square steel pipes with an outer diameter of 20mm*20mm and a length of 250mm, and one square steel pipe with an outer diameter of 20mm*20mm and a length of 500mm; three positioning bolts 2 are 9mm in diameter and 20mm in length; three positioning bolt nuts 3 are 9mm in inner diameter; four rotating fixing bolts are 7mm in diameter, 30mm in length, and nuts are 9mm in inner diameter; four tensioning fastening bolts and nuts 5 are 7mm in inner diameter; two tensioning fastening bolts 6 are 10mm in diameter and 500mm in length; two template positioning nuts 7 are 7mm in inner diameter.

[0029] like Figure 2 As shown, the construction method of the present invention comprises the following steps:

[0030] Step 1: Check the drawings related to the building structure to determine the cross-sectional dimensions of the frame beam to be implemented. In this embodiment, the frame beam template 10 of the concrete slab 8 and the concrete beam 9 is provided;

[0031] Step 2: Determine the size of the frame beam template 10 and the outer keel 11 of the template, and adjust the fixture to the appropriate size after determining the size;

[0032] Step 3, adjust the size of the telescopic joint 1, and tighten the positioning bolt 2 and the positioning bolt nut 3;

[0033] Step 4, place the clamp with adjusted size on the frame beam template 10 that needs to be tightened, adjust the tightness of the tension bolts and nuts 5, the tension tightening bolts 6, and the template positioning nuts 7 to tighten the frame beam template 10.

[0034] The purpose of the present invention is to better and more conveniently control the cross-sectional dimensions of the frame beam, to improve the integrity of the frame beam formwork, to eliminate the negative impact on the installation of the frame beam formwork caused by the different qualities of the workers, to ensure the quality of the finished concrete product after demolding, and ultimately to ensure that the cross-sectional dimensions of the frame beam and the concrete quality of the frame beam after pouring meet the design and specification acceptance standards.

[0035] like Figures 5 to 8 As shown, the telescopic, foldable and quick-disassembly functions of the present invention facilitate rapid adjustment and use of beams with different cross-sectional sizes during construction. During transportation, it can be "unfolded into steel sections and folded into devices", which is convenient for turnover and has a wide range of applications.

[0036] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A construction method of a retractable, foldable, quick-detachable frame beam formwork fixture, characterized in that: The telescopic, foldable, quick-detachable frame beam template clamp comprises a telescopic joint (1), a positioning bolt (2), a positioning bolt nut (3), a rotating fixing bolt and a nut (4); the telescopic joint (1) has four groups, and each group of telescopic joints (1) is two square steel pipes rotatably connected by the rotating fixing bolt and the nut (4); the four groups of telescopic joints (1) are assembled into a quadrilateral clamp with an opening through three pairs of positioning bolts (2) and positioning bolt nuts (3) to fasten the frame beam template; it also comprises tension bolts and nuts (5), tension fastening bolts (6), and template positioning nuts (7); the telescopic joints (1) on both sides of the opening of the quadrilateral clamp and their opposite sides each pass through one tension fastening bolt (6), and the tension bolt nut (5) is tightened inward from both sides to make the frame beam template reach the specified size; the template positioning nut (7) is tightened from the inside to both sides to control the frame beam template to be within the specified size; The construction method comprises the following steps: Step 1: Check the drawings related to the building structure and determine the cross-sectional dimensions of the frame beam to be implemented; Step 2: Determine the size of the frame beam template and the outer keel of the template, and adjust the fixture to the appropriate size after determining the size; Step 3, adjusting the size of the telescopic joint (1) and tightening the positioning bolt (2) and the positioning bolt nut (3); Step 4, place the clamp with adjusted size on the frame beam template that needs to be tightened, adjust the tightness of the tension bolts and nuts (5), tension tightening bolts (6), and template positioning nuts (7) to tighten the frame beam template.

2. The construction method of a retractable, foldable, quick-detachable frame beam formwork fixture as claimed in claim 1, characterized in that: The quadrilateral clamp can be separated into two independent clamps by unscrewing a pair of positioning bolts (2) and positioning bolt nuts (3) on opposite sides of the opening of the quadrilateral clamp.

3. A construction method of a retractable, foldable, quick-detachable frame beam formwork fixture as claimed in claim 1 or 2, characterized in that: The expansion joint (1) is a galvanized square steel tube, and other parts are made of metal.

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