CN201133402Y

CN201133402Y - Wall nail fastening device

Info

Publication number: CN201133402Y
Application number: CNU200720306995XU
Authority: CN
Inventors: 林景浩
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-11-26
Filing date: 2007-11-26
Publication date: 2008-10-15
Anticipated expiration: 2017-11-26

Abstract

The utility model relates to a wall nail fastening device which comprises i a main body, a hold-down screw and a drill bit; wherein, the main body is a hollow rod for the hold-down screw to go through; a thread part and a deformation part are arranged out of the main body; the head of the hold-down screw can arrange and drive an electric opener tool, the middle section is provided with an outer screw tooth which can be meshed with the head of the main body, and is tail is provided with the drill bit; the center of the tail of the drill bit is provided with a screw hole which is spirally integrated with the head of the hold-down screw; the outer side of the tail of the drill bit is provided with two symmetric vanes. The two vanes are good for smoothly removing chips produced in drilling. A section of positioning part with outer thread is pre-reserved at the tail of the hold-down screw, which is used to position the hold-down screw upon locking; when the outer thread of the hold-down screw is locked, the positioning part can be used to position to prevent the hold-down screw to be continuously screwed in, so as to prevent the drill bit from expansion and breakage.

Description

Wall clenches fixing apparatus

Technical field

The utility model relates to the wall that is widely used in gypsum board, sheet metal, plank, plastic board, wall and clenches fixing apparatus, and the wall that relates in particular to the technical improvement of the smooth chip removal of energy when bit bore clenches fixing apparatus.

Background technique

As everyone knows, there are following two problem and shortcomings that wait to overcome solution in wall nail commonly used traditionally at least when practical operation is used:

One, drill bit chip removal smoothly when boring.

Two, may cause the drill bit afterbody to break because of the excessive locking of packing screw.

The model utility content

The utility model be at traditional wall nail existing problem and disappearance and a kind of wall of smooth chip removal of realizing of proposing clenches fixing apparatus.

Clenching fixing apparatus according to wall of the present utility model comprises: body, packing screw, drill bit; Wherein: this body is the hollow lever of being made by plastic material, can be for wearing a packing screw, the internal diameter of body head is slightly less than the external screw thread of packing screw, the body afterbody is provided with and enlarges the retaining edge, body is provided with screw section and variant part in body of rod outside, and body is provided with slotted eye a plurality of five equilibriums, that be used to be out of shape at variant part with penetrating; This packing screw is made by metal material, and packing screw afterbody is provided with outside thread, sets firmly a drill bit in order to spiral, packing screw stage casing is provided with external screw thread, in order to the internal diameter interlock of body head, the packing screw head is provided with driver slot, the moving sheathed driving of bottle opener instrument of can powering; This drill bit is made by metal material, and drill bit afterbody center is provided with screw, is integral to set firmly with packing screw head spiral, and the afterbody outside of drill bit is provided with the fin of five equilibrium symmetry, in order to chip removal when holing.

According to the utility model, the afterbody of packing screw can be reserved one section does not have externally threaded positioning part, packing screw in location when being used to lock.

This model utility solves foregoing problems one applied technological means and improvement effect against existing technologies is: the drill bit afterbody outside is provided with the fin of two symmetries, and the fin of described symmetry helps to sweep smoothly chip removal when boring.

This model utility solves foregoing problems two applied technological means and improvement effect against existing technologies is: the afterbody of packing screw is reserved one section does not have externally threaded positioning part, when the outside thread of this packing screw is locked, can utilize the positioning part to be located, stop the packing screw to continue to screw in, take place with the situation of avoiding the drill bit swelling fracture.

Description of drawings

Fig. 1 is a perspective exploded view of the present utility model.

Fig. 2 is a combination generalized section of the present utility model.

Fig. 3 is the view of the utility model when boring.

Fig. 4 is the view of the utility model when variant part expands.

Fig. 5 is the view of the utility model when the variant part expansion is finished.

Fig. 6 is applied to the view of sheet material for the utility model.

Wherein, description of reference numerals is as follows:

1 Electric screw driver instrument, 2 boring objects

3 holes

10 bodies 11 enlarge the retaining edge

12 screw sections, 13 variant parts

14 slotted eyes

20 packing screws, 21 driver slots

22 external screw threads, 23 outside threads

24 positioning parts

30 drill bits, 31 screws

32 fins, 40 sheet materials

Embodiment

The useful functional effect of understanding structure of the present utility model in depth and can reach for person skilled in the art person is easy to is now enumerated a specific embodiment, and detailed introduction of conjunction with figs. is described as follows.

A kind of wall clenches fixing apparatus, please consult shown in Figure 1: it is a perspective exploded view of the present utility model; And shown in Figure 2: it is a combination generalized section of the present utility model.This wall clenches fixing apparatus and mainly is made up of body 10, packing screw 20, drill bit 30.

Body 10 is made by plastics (for example nylon) material, it itself is a hollow lever, can be for wearing a packing screw 20, the internal diameter of body 10 heads is slightly less than external screw thread 22 external diameters on the packing screw 20, body 10 afterbodys are provided with and enlarge retaining edge 11, body 10 outsides are provided with screw section 12 and variant part 13, body 10 on variant part 13, run through be provided with a plurality of five equilibriums, as the slotted eye 14 of distortion usefulness.

Packing screw 20 is made by metal (for example middle-carbon steel) material, the head of packing screw 20 is provided with driver slot 21, can power and move the 1 sheathed and driving of bottle opener instrument, packing screw 20 stage casings are provided with external screw thread 22, in order to the internal diameter interlock of body 10 heads, the afterbody of packing screw 20 is provided with outside thread 23, be integral in order to set firmly with drill bit 30 spirals, the situation that causes drill bit 30 to break for the outside thread 23 that prevents packing screw 20 is excessively locked takes place simultaneously, reserves one section positioning part 24 that does not have outside thread 23 at the afterbody of packing screw 20 especially.

Drill bit 30 is made by metal (for example middle-carbon steel) material, and the afterbody center of drill bit 30 is provided with screw 31, sets firmly in order to outside thread 23 spirals with packing screw 20 to be integral, and the afterbody outside of drill bit 30 is provided with the fin 32 of two symmetries.

By above-mentioned each assembly and the utility model that structure combined, aim to provide a kind of wall and clench fixing apparatus, the situation of its actual operational applications is as follows.

Please consult shown in Figure 3: the view when it is holed for the utility model.Utilizing Electric screw driver instrument 1 to drive packing screw 20 rotates, be drilled with corresponding hole 3 by drill bit 30 in the pre-position of boring object 2 straightly, drive body 10 simultaneously and and then rotate, drill bit 30 can utilize fin 32 to help swarf to discharge smoothly from the hole 3 that is drilled with when boring.

Please consult Fig. 4, shown in Figure 5: its be respectively the utility model variant part when expanding with the view that expands when finishing.The screw section 12 of body 10 is threaded in the hole 3 of boring object 2, when the expansion retaining edge 11 of body 10 is run into boring object 2, body 10 promptly can't continue to screw in again, this moment, body 10 promptly maintained static, the external screw thread 22 of packing screw 20 still continues to screw in body 10 head internal diameters, this moment body 10 variant part 13 dilatancy causes slotted eye 14 expanses because be subjected to from the retracting strength of packing screw 20.

Wall provided by the utility model clenches fixing apparatus, can also be applied to please consult shown in Figure 6 on the sheet material 40: it is applied to the view of sheet material for the utility model.When drill bit 30 passes sheet material 40, variant part 13 is finished after the expansion, drill bit 30 can be unloaded.

The utility model in sum aims to provide a kind of wall and clenches fixing apparatus, after the repeatable operation test, confirms to reach the desired function and benefit of the utility model really, has the value on the industry simultaneously.

Claims

1, a kind of wall clenches fixing apparatus, comprising: body, packing screw, drill bit; Wherein:

This body is the hollow lever of being made by plastic material, can be for wearing a packing screw, the internal diameter of this body head is slightly less than the external screw thread of this packing screw, this body afterbody is provided with and enlarges the retaining edge, this body is provided with screw section and variant part in body of rod outside, and this body penetratingly is provided with slotted eye a plurality of five equilibriums, that be used to be out of shape at variant part;

This packing screw is made by metal material, this packing screw afterbody is provided with outside thread, sets firmly a drill bit in order to spiral, and this packing screw stage casing is provided with external screw thread, in order to the internal diameter interlock of body head, this packing screw head is provided with the driver slot that moving bottle opener instrument is sheathed and drive of can powering;

This drill bit is made by metal material, and this drill bit afterbody center is provided with screw, is integral to set firmly with this packing screw head spiral;

It is characterized in that: the afterbody outside of this drill bit is provided with and is used for fin chip removal, the five equilibrium symmetry when boring.

2, wall as claimed in claim 1 clenches fixing apparatus, it is characterized in that: the afterbody of this packing screw be reserved with as when locking location, do not have an externally threaded positioning part.