CN201065876Y

CN201065876Y - Wall nail fastened screw

Info

Publication number: CN201065876Y
Application number: CNU2007201425663U
Authority: CN
Inventors: 林景浩
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-05-22
Filing date: 2007-05-22
Publication date: 2008-05-28
Anticipated expiration: 2017-05-22

Abstract

The utility model relates to a screw nail for tightening a wall screw, which comprises a main body, a forcing screw and a drill bit. The main body is hollow and available for the forcing screw to run through, the drill bit is sleeved at the head part of the forcing screw, the tail part of the forcing screw can be provided for a tool to be driven, an outer screw thread which can be meshed with the head part of the main body is arranged in the middle section of the main body, and a thread part and a distortion part are arranged outside the main body. The utility model is firstly characterized in that two symmetrical wings which can cause the hole diameter to keep lank and consistent when holes are drilled is arranged outside on the drill bit, and the utility model is secondly characterized in that a spiral part for the smooth chip removal when the holes are drilled is arranged outside the drill bit. Through the utility model, the problems that when the drill bit is used to drill holes, the hole diameter can not keep lank and consistent, and the chip removal is not smooth in the prior art can be smoothly solved.

Description

Wall clenches solid screw

Technical field

The utility model relates to a kind of wall and clenches solid screw, and is especially relevant with drill bit structure wherein.

Background technique

Wall commonly used clenches solid screw, when practical operation is used, has following two problem and shortcomings that wait to overcome solution at least:

One, drill bit can't keep the straight unanimity in aperture when boring.

Two, drill bit chip removal smoothly when boring.

The model utility content

The purpose of this utility model is to solve the problem that present screw exists.

Applied technological means of first problem that the utility model solves and first function against existing technologies are: bit exterior is provided with a plurality of fins, preferred two symmetrical fins, this fin can keep the straight and consistent of aperture when boring, thereby reaches first purpose.

Applied technological means of second problem that the utility model solves and second function against existing technologies are: bit exterior is provided with spire, this spire can be when boring smooth chip removal to the hole, thereby reach second purpose.

Concrete, the utility model is following realization:

A kind of wall clenches solid screw, comprising: body, packing screw, drill bit; Wherein:

Body is made by plastic cement, this is as a hollow lever, can be for wearing the packing screw, the internal diameter of body head is slightly less than the external diameter of 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, body variant part run through be provided with some five equilibriums as the distortion usefulness slotted eye;

The packing screw is made of metal, and the packing screw head is arranged with drill bit, and packing screw stage casing is provided with external screw thread, as with the usefulness of body head interlock, packing screw afterbody is provided with driver slot, the usefulness of the moving sheathed driving of bottle opener instrument of can powering;

Drill bit is made of metal, and bit central is provided with sheathed hole, is used for being integral with the packing screw head is sheathed;

It is characterized in that: the head outside of drill bit is provided with the fin of five equilibrium symmetry, and it is straight and consistent to be used for the aperture that maintenance is bored when boring.

Perhaps, it is characterized in that: the afterbody outside of drill bit is provided with spire, is used for smoothly swarf being drained into the hole that is drilled with when boring.

Can successfully realize the utility model technical issues that need to address by the technical solution of the utility model.

Description of drawings

Fig. 1: be that the utility model is implemented one perspective exploded view.

Fig. 2: be that the utility model is implemented two perspective exploded view.

Fig. 3: the straightened condition schematic representation when being the utility model enforcement one boring.

Fig. 4: be the user mode schematic representation of the utility model when implementing two variant parts and expanding.

Fig. 5: be that the utility model is implemented expand user mode schematic representation when finishing of two variant parts.

Fig. 6: the chip removal view when being the utility model enforcement two borings.

The main symbol description of accompanying drawing:

1 Electric screw driver instrument, 2 objects

3 holes

10 bodies 11 enlarge the retaining edge

12 screw sections, 13 variant parts

14 slotted eyes

20 packing screws, 21 external screw threads

22 driver slots

30 drill bits, 31 sheathed holes

32 fins, 33 spires

40 sheet materials or wall 41 holes

Embodiment

Functional effect in order to make those skilled in the art understand structure content of the present utility model in depth and can reach now enumerate specific embodiment, and conjunction with figs. is described in detail as follows:

A kind of wall clenches solid screw, sees also shown in Fig. 1,2: be that the utility model is implemented one, two perspective exploded view.Mainly formed by body 10, packing screw 20, drill bit 30, wherein:

Body 10 is made by plastic cement (for example nylon) material, this is as a hollow lever, can be for wearing packing screw 20, the internal diameter of body 10 heads is slightly less than external screw thread 21 external diameters of packing screw 20, body 10 afterbodys are provided with and enlarge retaining edge 11, body 10 is provided with screw section 12 and variant part 13 in body of rod outside, body 10 runs through at variant part 13 and is provided with the slotted eye 14 of some five equilibriums as distortion usefulness;

Packing screw 20 is made by metal (for example middle-carbon steel) material, packing screw 20 heads are arranged with drill bit 30, packing screw 20 stage casings are provided with external screw thread 21, as with the usefulness of the internal diameter interlock of body 10 heads, packing screw 20 afterbodys are provided with driver slot 22, the usefulness of the moving bottle opener instrument 1 sheathed driving of can powering;

Drill bit 30 is made by metal (for example middle-carbon steel) material, and drill bit 30 centers are provided with sheathed hole 31, in order to the sheathed one that is fixed into of packing screw 20 heads.

Feature one of the present utility model is: please consult shown in Figure 1: be that the utility model is implemented one perspective exploded view.The head of drill bit 30 outside is provided with two symmetrical fins 32, and these two symmetrical fins 32 can keep the aperture of being bored straight and consistent when drill bit 30 borings.

Feature two of the present utility model is: please consult shown in Figure 2: be that the utility model is implemented two perspective exploded view.The afterbody outside of drill bit 30 is provided with spire 33, and the swarf that this spire 33 can keep being bored when drill bit 30 borings drains in the hole smoothly.

By the utility model that above-mentioned each element structure combined, provide a kind of wall and clench solid screw, on practical operation is used:

Please consult shown in Figure 3: the straightened condition schematic representation when being the utility model enforcement one boring.Utilize Electric screw driver instrument 1 to drive packing screw 20 and rotate, be drilled with a hole 3 in the pre-position of object 2 straightly, drive body 10 simultaneously and and then rotate by drill bit 30.

Please consult shown in Fig. 4,5: be the utility model when implementing two variant parts and expanding with the user mode schematic representation that expands when finishing.The screw section 12 of body 10 is locked in the hole 3 of object 2, when the expansion retaining edge 11 of body 10 is run into object 2, body 10 promptly can't continue to lock again, this moment, body 10 promptly maintained static, the external screw thread 21 of packing screw 20 still continues to be screwed in body 10 heads, this moment body 10 variant part 13 because be subjected to the strength that retracts from packing screw 20, and dilatancy, cause slotted eye 14 expanses, object 2 closely is fixed on sheet material or the wall 40.

Please consult shown in the 6th figure: the chip removal view when being the utility model enforcement two borings.Drill bit 30 can utilize spire 33 to help swarf to drain in the hole 41 that is drilled with when boring.

Comprehensive above-mentioned the utility model, provide a kind of wall to clench solid screw, process inventor actual fabrication is finished after the also repeatable operation test, confirm to reach really the desired functional effect of the utility model, has the industry using value, the condition that meets novel patent application proposes patent application in accordance with the law.

Claims

1. a wall clenches solid screw, it is characterized in that: comprise body, packing screw, drill bit; Wherein:

The head outside of described drill bit is provided with the fin of five equilibrium symmetry, and it is straight and consistent to be used for the aperture that maintenance is bored when boring.

2. a wall clenches solid screw, it is characterized in that: comprise body, packing screw, drill bit; Wherein:

The afterbody outside of described drill bit is provided with spire, is used for smoothly swarf being drained into the hole that is drilled with when boring.