An aluminum formwork top frame for construction

Abstract

The present invention provides an aluminum formwork top support for construction, which includes an intermediate beam, a support column bracket, a support column, a clamping joint and a connecting bar. A top head matching with the inner wall surface of the support column bracket is arranged at the top of the support column. The two end faces of the support column bracket are inverted eight-shaped inclined planes, and the two end faces of the clamping joint are regular eight-shaped inclined planes. The clamping joint is movably arranged below the intermediate beam and is in contact and cooperation with the support column bracket. A folded edge that turns over towards the web is arranged at the top of the clamping joint. A plurality of inverted U-shaped holes are arranged on the side surface of the connecting bar, and a U-shaped pin is arranged in two adjacent inverted U-shaped holes. The two ends of the U-shaped pin respectively pass through a first connecting hole arranged on the support column bracket and a second connecting hole arranged on the clamping joint. The aluminum formwork support for construction provided by the present invention has high support stability, high assembly performance, strong practicability, high comprehensive utilization rate, reasonable design, simple structure and low cost, and is suitable for large-scale promotion.

Description

Technical Field

[0001] The present invention belongs to the technical field of construction tools, and particularly relates to an aluminum formwork top frame for construction. Background Art

[0002] The advent of aluminum alloy formwork has greatly reduced the use cost of formwork. The green and environmentally friendly aluminum alloy formwork has become a new favorite in the formwork market because of its characteristics and advantages such as light weight, high stiffness, strong stability, long service life, and high construction efficiency. The proportion of aluminum formwork used is increasing year by year. Among them, a large number of top frames are used to establish a support system for building molds to ensure the shaping and positioning effect of the molds.

[0003] At present, the top frame for building molds includes a support column and a support column head that is in direct contact with the mold. For example, the existing patent CN201820188266.7 discloses an aluminum formwork top frame for construction. The key points of its technical solution are that it includes an intermediate beam horizontally placed on the top of the frame, and also includes a support column head and a connecting bar. The intermediate beam is provided with a clamping portion. The intermediate beam is spliced at both ends of the support column head. The connecting bar is clamped in the clamping portions of two adjacent intermediate beams. The connecting bar integrally sets the intermediate beam and the support column head; this aluminum formwork top frame for construction has good support strength and connection strength. However, the problems of this device include: First, the connection area between the support column and the support column head is small, and the support stability needs to be improved; Second, the butt end of the support column head and the clamping portion adopts a vertical surface, and they respectively support the intermediate beam, and the interaction between them is weak, and the integrity still needs to be improved; Third, the connection members of the connecting bar with the support column head and the clamping head are relatively cumbersome during the removal process, time-consuming and laborious, and it is difficult to improve the work progress. Moreover, the clamping portion fixed on the intermediate beam increases the volume of the intermediate beam member, occupies a large storage space, and has a high transportation cost. Summary of the Invention

[0004] In view of the above technical problems existing in the aluminum formwork top frame, the present invention provides an aluminum formwork top frame for construction that is reasonably designed, has a simple structure, high support stability, is easy to assemble, and is beneficial to cost reduction.

[0005] To achieve the above object, the technical solution adopted by the present invention is that a building aluminum formwork top frame provided by the present invention includes a plurality of intermediate beams. The intermediate beam includes a top plate, a web plate, and an extension plate. A support column bracket is provided between adjacent intermediate beams. A support column is provided at the bottom of the support column bracket. A clamping joint is provided at the bottom of the intermediate beam. The clamping joint is in a "π" shape. The clamping joint is connected to the intermediate beam through a connecting strip. A top head that cooperates with the inner wall surface of the support column bracket is provided at the top of the support column. The two end faces of the support column bracket are inverted eight-shaped inclined planes. The two end faces of the clamping joint are regular eight-shaped inclined planes. The clamping joint is movably arranged below the intermediate beam and is in contact and cooperation with the support column bracket. A folded edge that turns over towards the web plate is provided at the top of the clamping joint. A plurality of inverted U-shaped holes are provided on the side surface of the connecting strip. A U-shaped pin is provided in adjacent two inverted U-shaped holes. The two ends of the U-shaped pin respectively pass through a first connection hole provided on the support column bracket and a second connection hole provided on the clamping joint.

[0006] Preferably, a counterbore is provided at the center of the top head. A positioning protrusion that cooperates with the counterbore is provided on the bottom surface of the support column bracket. The positioning protrusion is in a cylindrical shape.

[0007] Preferably, U-shaped grooves are provided at both ends of the top plate. The U-shaped grooves are located on the bottom surface of the top plate.

[0008] Preferably, a long waist-shaped hole is provided in the middle of the clamping joint. A connecting bolt is provided in the long waist-shaped hole. The connecting bolt vertically connects the clamping joint and the intermediate beam.

[0009] Compared with the prior art, the advantages and positive effects of the present invention are as follows:

[0010] 1. For the building aluminum formwork top frame provided by the present invention, the connection area between the top of the support column and the support column bracket is increased by using the top head, improving the support stability; by adopting the support column bracket and the clamping joint with inclined plane cooperation, the interaction between the two is enhanced, improving the integration of the assembly of the device. Moreover, the assembly of the clamping part is flexible, with strong practicability and high comprehensive utilization rate; the assembly difficulty of the connecting strip with the support column bracket and the clamping joint is low, which is beneficial to improving the assembly efficiency. The device is reasonably designed, with a simple structure, and is suitable for large-scale promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0012] Figure 1An isometric view of an aluminum formwork top frame for construction provided for the embodiment;

[0013] Figure 2 A front view of an aluminum formwork top frame for construction provided for the embodiment;

[0014] Figure 3 A side view of an aluminum formwork top frame for construction provided for the embodiment;

[0015] Figure 4 A structural schematic diagram of a support column provided for the embodiment;

[0016] In each of the above figures, 1 is the middle beam; 11 is the top plate; 12 is the web; 13 is the extension plate; 14 is the U-shaped groove; 2 is the support column head; 21 is the positioning protrusion; 3 is the support column; 31 is the top head; 32 is the counterbore; 4 is the clamping joint; 41 is the folded edge; 42 is the long waist-shaped hole; 5 is the connecting strip; 51 is the inverted U-shaped hole; 6 is the U-shaped pin. Detailed implementation manners

[0017] In order to more clearly understand the above objects, features and advantages of the present invention, the present invention will be further described below with reference to the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other. For the convenience of narration, words such as "upper", "lower", "left", and "right" hereinafter only indicate the same directions as the upper, lower, left, and right directions of the drawings themselves, and do not limit the structure.

[0018] Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the present invention is not limited by the specific embodiments disclosed in the following specification.

[0019] Embodiment, such as Figure 1 , Figure 2 , Figure 3 and Figure 4As shown in the figure, a building aluminum formwork top frame provided by the present invention includes a plurality of intermediate beams 1. The intermediate beam 1 includes a top plate 11, a web 12, and an extension plate 13. A support column bracket 2 is provided between adjacent intermediate beams 1. A support column 3 is provided at the bottom of the support column bracket 2. A clamping joint 4 is provided at the bottom of the intermediate beam 1. The clamping joint 4 is in a "π" shape, and the clamping joint 4 is connected to the intermediate beam 1 through a connecting bar 5. Among them, the support column bracket 2 is used to connect adjacent intermediate beams 1, and the intermediate beam 1 is a prior art, which will not be elaborated in this embodiment. On this basis, a top head 31 that matches the inner wall surface of the support column bracket 2 is provided at the top of the support column 3 provided by the present invention. The two end faces of the support column bracket 2 are inverted eight-shaped inclined surfaces, and the two end faces of the clamping joint 4 are positive eight-shaped inclined surfaces. The clamping joint 4 is movably arranged below the intermediate beam 1 and is in contact and cooperation with the support column bracket 2. A folded edge 41 that folds towards the web 12 is provided at the top of the clamping joint 4. A plurality of inverted U-shaped holes 51 are provided on the side surface of the connecting bar 5. A U-shaped pin 6 is provided in adjacent two inverted U-shaped holes 51. The two ends of the U-shaped pin 6 respectively pass through a first connection hole provided on the support column bracket 2 and a second connection hole on the clamping joint. Among them, the top head 31 directly contacts the top of the support column bracket 2, increasing the connection area between the top of the support column and the support column bracket 2, having a higher anti-deflection ability, and being able to ensure the levelness of the top of the support column bracket 2 to the greatest extent, thereby improving the support stability of the entire device. The support column bracket 2 and the clamping joint 4 of the present device adopt an inclined surface cooperation, enhancing the interaction between the two, increasing the force support points, being able to effectively disperse the pressure in the non-vertical direction of the external force acting on the support column bracket 2 and the clamping joint 4, and further improving the integration of the assembly of the present device, with a higher stability; at the same time, the clamping joint 4 and the intermediate beam adopt a detachable structure, with flexible assembly, reducing the workload, being beneficial to promoting the construction progress; furthermore, the clamping joint 4 and the intermediate beam 1 can be stored independently of each other, with a smaller space volume and a lower transportation cost, having strong practicability and a higher comprehensive utilization rate. Further, the assembly difficulty of the connecting bar 5 provided by the present invention with the support column bracket 2 and the clamping joint 4 is relatively low. For example, during the form removal operation, the connecting bar 5 in the connected state can be directly lifted upwards to relax the U-shaped pin 6 by reducing the connection nodes on the U-shaped pin 6, facilitating the separation of the U-shaped pin 6 and the connecting bar 5 from the entire support system. Moreover, the U-shaped pin 6 itself directly connects two groups of connection holes, with a higher connection efficiency, better stability, and being able to resist the shear force at the nodes of the first connection hole and the second connection hole, having a longer service life.

[0020] In order to improve the stability of the support column, a counterbore 32 is provided at the center of the top head 31 of the present invention. A positioning protrusion 21 that matches the counterbore is provided on the bottom surface of the support column bracket 2. The positioning protrusion 21 is in a cylindrical shape, and the positioning protrusion 21 plays a positioning role to ensure the uniform force of the support column 3 and the intermediate beam 1. It should be noted that the top head 31 and the support column bracket 2 can be welded to ensure the connection reliability during the support process.

[0021] To improve the connection efficiency between the support column head and the middle beam, U-shaped grooves 14 are provided at both ends of the top plate 11 of the middle beam provided by the present invention. The U-shaped grooves 14 are located at the bottom surface of the top plate. The U-shaped grooves 14 are used to reduce the frictional resistance between the middle beam 1 and the support column head 2, effectively increasing the number of disassembly and assembly times between the support column head 2 and the middle beam 1. Moreover, the two parts of the middle beam on both sides of the U-shaped groove can also ensure the stability and support capacity of the support column head inside the middle beam. The corresponding part of the top surface of the top plate 11 to the U-shaped groove is a closed end, which can prevent obvious indentations or deformations on the formwork supported by this device.

[0022] To improve the stability of this device, a long waist-shaped hole 42 is provided in the middle of the clamping joint 4 provided by the present invention. A connecting bolt is provided in the long waist-shaped hole 42. The connecting bolt vertically connects the clamping joint 4 and the middle beam 1. Through the connecting action of the connecting bolt and the connecting action of the U-shaped pin 6, the relative positions of the clamping joint 4, the middle beam 1, and the support column head 2 can be fixed, with relatively high connection reliability and good support performance.

[0023] The above are only the preferred embodiments of the present invention, and are not limitations to the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention without departing from the technical solution content of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. An aluminum formwork top frame for construction, comprising a plurality of intermediate beams. The intermediate beam includes a top plate, a web plate and an extension plate. A support column bracket is arranged between adjacent intermediate beams. A support column is arranged at the bottom of the support column bracket. A clamping joint is arranged at the bottom of the intermediate beam. The clamping joint is in a "π" shape. The clamping joint is connected to the intermediate beam through a connecting bar. It is characterized in that, A top head that mates with the inner wall surface of the support column bracket is provided at the top of the support column. The two end faces of the support column bracket are inverted V-shaped inclined planes. The two end faces of the clamping joint are regular V-shaped inclined planes. The clamping joint is movably arranged below the middle beam and is in contact and cooperation with the support column bracket. A folded edge that turns over towards the web is provided at the top of the clamping joint. A plurality of inverted U-shaped holes are provided on the side surface of the connecting bar. A U-shaped pin is arranged in adjacent two inverted U-shaped holes. The two ends of the U-shaped pin respectively pass through a first connecting hole provided on the support column bracket and a second connecting hole provided on the clamping joint.

2. The aluminum formwork top frame for construction according to claim 1, characterized in that, A counterbore is provided at the center of the top head. A positioning protrusion that mates with the counterbore is provided on the bottom surface of the support column bracket. The positioning protrusion is in a cylindrical shape.

3. The aluminum formwork top frame for construction according to claim 2, characterized in that, U-shaped grooves are provided at both ends of the top plate. The U-shaped grooves are located on the bottom surface of the top plate.

4. The aluminum formwork top frame for construction according to claim 3, characterized in that, A long oval hole is provided in the middle of the clamping joint. A connecting bolt is arranged in the long oval hole. The connecting bolt vertically connects the clamping joint and the middle beam.

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