CN2480607Y - Nail with upset sleeve - Google Patents

Abstract

The utility model relates to a finishing industry tightening engineering element, which comprises a traditional swelling sleeve with an open slot. A nail perforates the swelling sleeve. The rear end of the nail is gradually thick-variational round-platform shaped which is arranged on one side of the open slot of the swelling sleeve. The external diameter of the round bench is bigger than the internal diameter of the swelling sleeve. When the swelling sleeve is squeezed and expanded into a nail rear, the nail head reveals outside of the swelling sleeve. A non-nailing trace nail connection can be achieved when pushing decorative plate materials into the nail head, and is especially qualified to a construction of decorative plates with a pattern, such as Bao Li plate.

Description

The nail of band expansion sleeve

The utility model relates to the engineering element of the fastening usefulness of repairs profession two articles, particularly the improvement to following closely.

Traditional expansion bolt will be bolted in the body of wall by expansion sleeve, again fixation will be inserted in bolt and lock with nut, outside nut must be exposed to.General Modern Family is during with sheet material decorated wall surface such as three-ply board or ground, need earlier imperial batten is bolted to wall or on the ground with swollen anus, again with the three-ply board nail on Long Muzhi, can stay the nail tail inevitably, need cover decorations with other modes again.Traditional this method consumptive material, consumption worker, the decoration cost height.

The purpose of this utility model provides a kind of sheet material and metope or ground and need not imperial wood fixedly the time and know transition, and the special use nail of nail trace is not stayed in the sheet material front.

The utility model comprises that an end is shaped on the expansion sleeve of opening slot, it is characterized in that nail penetrates in the expansion sleeve, and its tail end that is positioned at expansion sleeve opening slot one end is the gradually thick frustoconic shape that changes, and the diameter of round platform is greater than the internal diameter of expansion sleeve.

Expand to the tail end of nail when the expansion sleeve quilt is crowded, the trend of events end of nail is exposed at outside the expansion sleeve, and its length of exposing is slightly less than the sheet metal thickness of desiring to be fixed.

During use, will be with the nail of expansion sleeve to extend in pre-drilled wall/hole, ground, inwardly impact expansion sleeve and use the opening slot distending, and make nail fixing.The trend of events end of nail places ailhead with sheet material outside wall/ground, apply impulse force in the sheet material front and can realize nail stickfast sheet material from inside to outside.Because ailhead exposed parts worker degree is less than sheet metal thickness, so a bit nail trace is not stayed in the sheet material front.Omitted thus in traditional construction and must know material, the man-hour of making middle transition and producing by elder generation's imperial wood of installation, efficiency of construction improves, and cost reduces.Be particularly suitable for society's patterned sheet material in beautiful board type surface from the worker.

In the accompanying drawing, Fig. 1 is the utility model example structure figure, Fig. 2 be Figure 1A-A to sectional view, Fig. 3 is that user mode implements illustration.

Be described further below in conjunction with accompanying drawing.

Expansion sleeve 1 shape is identical with the used structure of conventional expanded bolt.The tip of iron nail 2 has opening slot 3 one ends to enter and pass from expansion sleeve 1.The tail end 4 of nail is gradually thick frustoconic shape or spheroidal, and the diameter of round platform is greater than the internal diameter of expansion sleeve 1.

During construction,, make its tail end be followed closely tail round platform distending, make nail 2 and body of wall firm being with the iron nail 2 of expansion sleeve 1 to extend in the hole, expansion sleeve 1 inwardly being hit earlier in body of wall 7 borings.At this moment the height L of round platform is converted to the exposed length of ailhead.Dalle 6 by being placed on a plurality of presetting on the ailhead, is inwardly hit sheet material behind the sheet material front with the protective pad pad, can make sheet material be tufted into ailhead and realize being connected.Fig. 3 middle washer 5 is in order to increase the surface of contact with sheet material.

Claims (2)

1, a kind of nail with expansion sleeve, comprise that an end is shaped on the expansion sleeve of opening slot (1), it is characterized in that nail (2) penetrates in the expansion sleeve (1), its tail end that is positioned at expansion sleeve opening slot (3) one ends is the gradually thick frustoconic shape that changes, and the round platform diameter is greater than the internal diameter of expansion sleeve (1).

2, nail according to claim 1 is characterized in that being squeezed the tail end (4) that expands to nail (2) when expansion sleeve (1) opening slot (3), and nail trend of events end has length to be exposed at outside the expansion sleeve (1).

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