TWM276120U - Expansion screw - Google Patents

Description

M276120 、 Creation (1) [Technical Field of New Type] This new type is related to an expansion screw, especially an expansion screw that can increase the stability of the latch to be positioned in the wall hole. ~ [Prior art] The structure of the% service screw can be seen in the first figure. The expansion screw (1) has a screw rod (11) and a set of positioning sleeves provided on the screw rod. (1 2), and a nut (1 3) and a washer (1 4) screwed onto the screw rod (丨 丨); wherein the screw rod (1 1) has a thread section (1 1 1), and a cone (丨 丨 2) formed at one end of the screw rod (1 1), and the threaded section (111) can be used for screwing the nut (13); in addition, the cone (112) ) Yes: One end of the screw rod (11) is tapered to the threaded section (111) and can be set by the positioning sleeve (1 2); when screwing, the expansion screw (丨) is first inserted into the wall hole (丨〇), and rotate the nut (13), so as to drive the movement of the screw rod (11), and then the screw and the cone (112) on the (11) push the positioning sleeve (12) 彳Open palm to achieve the effect of snapping and positioning in the wall hole (10). In addition, the "conventional expansion screw (1)" is completely relying on the expansion of the positioning sleeve (1 2) and is locked in the wall hole (1 0), thereby achieving the purpose of locking. Therefore, whether the expansion screw (1) can be firmly and firmly locked in the wall hole (10), and whether the size of the positioning sleeve (1 2) is sufficient to fully lock in the wall hole (1 〇). ) "Becomes an important influencing factor", and the expansion of the expansion screw (1) depends entirely on the expansion and extensibility of the positioning sleeve (12). [New content] After investigation, the above-mentioned conventional expansion screw (1) hinders the expansion and extensibility of its positioning sleeve (丨 2), which results in a significant reduction in its locking effect.

UTILITY20050407PU660.ptd

Page 5 M276120 9. Creation Instructions (2) In view of this, in order to improve the disadvantages of the above-mentioned conventional expansion screws, the creators finally designed this creation after long-term research and experiment. The purpose of this creation is to provide an expansion screw, the structure is provided with a screw rod positioning sleeve, a washer and a nut, wherein the screw is provided with a screw hole that can be drilled in the screw first, Shikou lib —— The locking degree by pushing and opening one by one makes the lifting greatly reduced. The review committee is effective and will make a more detailed explanation, such as the blocking part, the end of the screw rod, at least one central part of the positioning sleeve is provided with a screw rod for the screw rod to be screwed, and then the sleeve will be rotated by the sleeve The cone-shaped body of the tight nut rod is stretched out, and the positioning hole and the rod of the expanded screw are provided with an expanded washer, which is based on placing a fixed nut into a pre-set blocked positioning sleeve block. Threads are cleverly designed to meet the needs of the economy. [Implementation of this illustration, a threaded cone segment system with a central and central position. The sleeves are pre-threaded with a stopper and a gap for more long-term use. Biangui and its functions, detailed methods] The creation department has caps (4) respectively for holes on the screwing rod. When the screwing on the wall of the tapered object is expanded, a gap is also provided. Threading; When positioning the sleeve into the screw, the body is oriented, so that the cost of shrinking and locking of the sleeve and further understanding and understanding of the purpose, shape, and structure of the creation are described below. Here are some examples: Screws, see page There is a screw rod (1) and a positioning sleeve (2). Among them, the screw rod (1) is provided with a threaded section (1 1), a barrier, and a three-dimensional washer (3). Hole; when the nut is used, the screw rod can be put into place, and the positioning can be advanced relatively, so that the positioning sleeve and the short stop can increase the object more quickly and flexibly.

UTILITY20050407PU660.ptd Page 6 M276120 Fourth, the creation description (3) part (1 3) and a cone (12) that gradually expands outward. The positioning sleeve (2) is provided with at least one notch (2 1) and an opening (2 2) 'on the surface so that the violation stand can be expanded and extended, and at least one stop block ( 2 3), so as to enhance the locking effect with the object (5). The washer (3) 'is provided at the center with a perforation (31) through which a screw rod (1) can be inserted. # < The nut (4) 'is provided at the center with a screw rod (1) for perforation (4 1)' and the inner edge of the perforation is provided with a "1, 丄" _ Mouth salamanders V 1) are mutually infesting and less thready (4 2). For the composition of the above-mentioned components, please refer to the fourth. First, the positioning sleeve (2), washer (3), and nut (4) are placed in sequence as shown in the figure, first on (1), Then insert the hole (5 σ) drilled in the object (5) in the screw rod and the nut (4), so that the positioning sleeve (2) will be screwed together, and then pushed by turning (13) Advance toward the cone (12), so that the blocking part (21) and the opening (22) of the second (1) are gradually covered by the gap (51) of the cone (12) and the positioning sleeve (2). And the above-mentioned 'only the structural features of the best creation of this creation are not limited to this. Any, = difficult is only an example, but in this creative field, changes that can be easily considered 2 = understand this The scope of patents of the artist in this case. 〃 $, can be covered in the following

UTILITY20050407PU660.ptd Page 7 M276120 Simple illustration of the drawing [Simplified illustration of the drawing] The first picture: a side sectional view of the use of a conventional expansion screw. The second picture: a three-dimensional exploded view of the creative expansion screw. The three-dimensional assembly diagram. The fourth diagram: the schematic diagram of the pre-installation of this creation. The fifth diagram: the side sectional view of the use state of the expansion screw. The sixth diagram: the side sectional view of the use state of the expansion screw. (1) Expansion screw (1 0) Wall hole (1 1) Screw rod (1 1 1) Thread section (1 1 2) Cone (12) Positioning sleeve (1 3) Nut (1 4) Washer This creation] (1) Screw rod (1 1) Thread section (1 2) Cone (1 3) Stopper (2) Positioning sleeve (21) Notch (2 2) Opening (2 3) Stop block ( 3) Washer (3 1) Perforation (4) Nut (4 1) Perforation (4 2) Thread (5 1) Hole (5) Object

UTILITY20050407PU660.ptd Page 8

Claims (1)

M276120 V. Application for patent scope 1. An expansion screw, which at least comprises: a screw rod, the screw rod is provided with a thread section and a tapered body that gradually expands outward; a positioning sleeve, the positioning sleeve is sleeved Between the cone and the blocking part; a washer, the center of the washer is provided with a penetrator L through which a screw rod can pass; a nut, and a nut is provided at the center of the nut The perforation of the rod is screwed, and the inner edge of the perforation is provided with a thread that can be screwed with the screw rod. The characteristics are: the screw rod of the expansion screw is provided with a blocking portion; the positioning sleeve is provided with at least one notch, An opening and a stop block. UTILITY20050407PU660.ptd Page 9