Steel bar prestress device for small prestressed concrete block
A concrete block and prestressing technology, applied in the direction of ceramic molding machines, manufacturing tools, etc., can solve the problems of uncomplicated and troublesome prestressed steel bar installations, achieve the effects of convenient insertion and removal, increased work efficiency, and cost savings
Inactive Publication Date: 2018-08-17
FOSHAN UNIVERSITY
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[0007] The object of the present invention is to provide a kind of steel bar prestressing device for small prestressed concrete blocks, the steel bar can be straightened by the stretching action of the telescopic device between the second support assembly and the tension support assembly, and a tensile stress is given to the steel bar, and the screw thread The connecting rod adjusts the distance between the first support component and the second support component, and at the same time, it can pre-tighten the steel bars, which solves the troublesome existing small-scale prestressed concrete test block production, and the existing prestressed steel bar device is not enough simple question
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[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
[0032] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", etc. The indication of the orientation or position relationship is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the component or element referred to must have a specific orie...
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The invention discloses a steel bar prestress device for a small prestressed concrete block, and relates to the technical field of steel bar prestress devices. The steel bar prestress device for the small prestressed concrete block comprises a first supporting assembly, a second supporting assembly, a tensioning supporting assembly and steel bar buckles, wherein the first supporting assembly and the second supporting assembly are fixedly connected through threaded connecting rods, the second supporting assembly is in sliding connection with the tensioning supporting assembly, a telescopic device is arranged between the second supporting assembly and the tensioning supporting assembly, and the first supporting assembly comprises a first bottom plate. A steel bar set can be straightened under the jacking action of the telescopic device between the second supporting assembly and the tensioning supporting assembly, tensile stress is given to steel bars, the threaded connecting rods are rotated to adjust the distance between the first supporting assembly and the second supporting assembly, meanwhile the steel bars can be pretightened, and the problems that existing small prestressed concrete block fabrication is troublesome, and an existing prestress steel bar device is not simple enough are solved.
Description
Technical field [0001] The invention belongs to the technical field of steel bar prestressing devices, and particularly relates to a steel bar prestressing device for small prestressed concrete blocks. Background technique [0002] In order to avoid the premature appearance of cracks in reinforced concrete structures, prestressed concrete makes full use of high-strength steel bars and high-strength concrete. Try to apply external force before the concrete structure or components bear the load to reduce the tensile stress generated by the components, even in Concrete members under compressive stress. [0003] Purpose The pre-compression stress is used to reduce or offset the concrete tensile stress caused by the load, so as to control the tensile stress of the structural member in a small range, even in a compressed state, so as to delay the appearance and development of concrete cracks, thereby improving the component’s performance. Crack resistance and stiffness. [0004] The crac...
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IPC IPC(8): B28B23/04
CPCB28B23/043
Inventor 周锡武张润成
Owner FOSHAN UNIVERSITY