A reinforced expansion screw without punching
An expansion screw, drilling-free technology, applied in the direction of screws, threaded fasteners, connecting components, etc., can solve the problems of bolt falling off, errors, troubles, etc., to save the time of drilling and avoid non-compliance.
Active Publication Date: 2022-05-03
佛山市南海众勤五金电器有限公司
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- Application Information
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Problems solved by technology
[0003] When the existing expansion bolts are used to fix objects, holes are drilled in advance, and then installed. It is very troublesome and the size of the holes does not necessarily match the size of the screws. There are errors. In important installation occasions, mismatched holes and bolts are prone to fall off;
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[0030] The technical solutions of the present invention will be further specifically described below through the embodiments and in conjunction with the accompanying drawings. In the following description, many specific details are set forth in order to fully understand the present invention, but the present invention can be implemented in many other ways different from those described here, and those skilled in the art can do similar Modifications, and therefore the present invention is not limited to the specific examples disclosed below.
[0031] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "up", "down", "front", "rear", "left", "right" etc. are based on the Orientation or positional relationship, or the orientation or positional relationship that the inventive product is usually placed in use, is only for the convenience of describing the present invention and simplifying the descript...
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A reinforced non-drilling expansion screw, including: a hexagonal screw and a rotating rod; the rotating rod is placed inside the hexagonal screw; when in use, first nail the screw tip into the wall, and turn the screw head with an Allen wrench to make the screw The column rotates into the wall, and at the same time, threads are formed in the wall, which makes it easier for the V-shaped outer support reed to be pressed into the wall, which saves more effort. Turn the rotating head clockwise with a screwdriver to drive the rod body, so that the outer support block rotates. Then, the V-shaped outer support reed is pushed out and pressed into the wall, completing the fixing of the expansion screw, saving the time for drilling holes for installing the expansion screw, avoiding the situation that the size of the punching hole does not match the expansion screw, and solving the problem. The installation of expansion screws requires drilling in advance.
Description
technical field [0001] The invention relates to the technical field of screws and fasteners, in particular to a reinforced expansion screw without drilling. Background technique [0002] Expansion screws generally refer to metal expansion screws. The expansion screw is fixed by using the wedge-shaped slope to promote the expansion to generate friction and grip force to achieve the fixing effect. When the screws on the market are in use, they need to be inserted into the holes made on the wall, and then the nuts are locked. The nuts pull the screws outward, and the taper is pulled into the iron cylinder. The iron cylinder is expanded, so it is tightly fixed on the wall. It is generally used for fastening fences, awnings, air conditioners, etc. on cement, bricks and other materials; [0003] When the existing expansion bolts are used to fix objects, holes are drilled in advance, and then installed. It is very troublesome and the size of the holes does not necessarily match th...
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IPC IPC(8): F16B13/06F16B25/10
CPCF16B13/065F16B25/106
Inventor 杨磊
Owner 佛山市南海众勤五金电器有限公司