CN201265579Y

CN201265579Y - Screw structure improvement

Info

Publication number: CN201265579Y
Application number: CNU2008201310842U
Authority: CN
Inventors: 林宪能
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-09-02
Filing date: 2008-09-02
Publication date: 2009-07-01
Anticipated expiration: 2018-09-02

Abstract

The utility model provides a bolt improved structure which at least comprises a bolt body and convex cone blocks. Each of the two ends of the bolt body is respectively provided with a pointed cone end and a locking end in which a screw driver can be inserted. The peripheral wall of the bolt body is provided with an outside thread extending spirally. The convex cone blocks are arranged on the wall surface between two adjacent thread sections of the outside thread of the bolt body. The surfaces of the convex cone blocks are provided with a plurality of flat surfaces extending in different directions, and sharply bent blades are respectively formed among the flat surfaces. At least one lateral surface of each convex cone block is jointed with the surface of the outside thread. When the convex cone blocks are used for being gradually screwed in a fixed material along the outside threads, the blade parts can effectively cut and break the fiber of the fix material, not only the friction resistance against the bolt body can be reduced, but also the continual damage caused by improper internal stress to the fiber in the fixed material can be avoided.

Description

A kind of improvement of bolt structure

Technical field

The utility model relates to a kind of screw, relates in particular to a kind of improvement of bolt structure.

Background technique

The existing screw structure, as shown in Figure 1, its two ends at a screw body 10 are respectively equipped with a pointed cone end 11 and and lock the end 12 of pulling, can and be provided with according to the structural form (word, cross or interior hexagonal) of corresponding screwdriver and can be provided with the outside thread 13 of spiral extension in addition at described screw body 10 periphery walls in described lock end 12 central authorities of pulling for the slotting recess 121 of pulling of inserting embedding; This kind structure is because described outside thread 13 thinner thicknesses and sharper, in use, described outside thread 13 can be screwed into the degree of depth and cuts fibrous structure in the material that is fixed (timber) along with described screw body 10 increases gradually, cause between the two frictional force with increasing, the operation that tends to cause lock to change screw body is more and more required great effort, having even to be difficult to lock smoothly changes the situation generation of finishing, and this also forms a disappearance of using.

Summary of the invention

Main purpose of the present utility model is to provide a kind of improvement of bolt structure, and it can effectively reduce the operation strength that lock changes screw, to promote the smoothness of integrated operation.

Another purpose of the present utility model is to provide a kind of improvement of bolt structure, and it can effectively reduce the internal stress of the material internal that is fixed, and produces to prevent large-area material damage.

The utility model is for reaching above-mentioned purpose and effect, the technological means that it adopted comprises: screw body and convex cone piece, described screw body is respectively equipped with a pointed cone end and at two ends can be provided with the outside thread of spiral extension for the lock that bottle opener the inserts end of pulling at the wall of described screw body periphery; Plural number convex cone piece is arranged in the outside thread of described screw body on the wall between adjacent two screw threads, and has the flat bevel that plural number extends to different direction on each convex cone piece surface, make the blade that can form sharp-pointed bending between each flat bevel respectively, at least one side surface of each convex cone piece is incorporated into described externally threaded surface.

Compared with prior art, the improvement of the bolt structure that the utility model provides can effectively reduce the operation strength that lock changes screw, to promote the smoothness of integrated operation, and can effectively reduce the internal stress of the material internal that is fixed, produce to prevent large-area material damage.

Description of drawings

Fig. 1 is the existing bolt arrangement schematic representation of promoting the lock transfer efficient;

Fig. 2 is the utility model first embodiment's a organigram;

Fig. 3 is that the utility model first embodiment's structure is screwed into the view in the material that is fixed;

Fig. 4 is that the utility model first embodiment's structure is screwed into the transverse cross-sectional view in the material that is fixed;

Fig. 5 is the utility model second embodiment's a organigram.

Description of reference numerals: 1,10-screw body; 11-pointed cone end; 12-locks the end of pulling; 121-inserts the recess of pulling; The 13-outside thread; 2,4-. convex cone piece; 21,211,411, the flat bevel of 412-side; 22,221-holds bevel level with both hands; 23,42-first blade; 231,43-second blade; 24,44-the 3rd blade; 25-the 4th blade; 251-the 5th blade; The 3-material that is fixed; The broken zone of 31-; The last flat bevel of 41-.

Embodiment

Below in conjunction with accompanying drawing, be described in more detail with other technical characteristics and advantage the utility model is above-mentioned.

Please join Fig. 2 to Fig. 4, can clearly find out, the utility model first embodiment's structure mainly comprises: screw body 1 and convex cone piece 2 etc. are partly, wherein said screw body 1 is a basic bolt structure, be respectively equipped with a pointed cone end 11 and at its two ends and lock the end 12 of pulling, be provided with a slotting recess 121 of pulling that can insert for bottle opener in described lock end 12 central authorities of pulling, be provided with the outside thread 13 of spiral extension at described screw body 1 periphery wall, plural number convex cone piece 2 is adjacent to be set up in parallel on the wall of 13 of each outside threads of described

screw body

1,2 liang of sides of each convex cone piece are provided with the flat bevel 21 in the oblique both sides that edge up to central authorities, 211, and flat bevel 21 in described both sides, 211 connected portion forms one along described screw body 1 axially extended the 3rd blade 24, other is flat bevel 21 in described both sides, be provided with between 211 at least two outwards oblique gradually fall hold bevel 22 level with both hands, 221, and make two to hold bevel 22 level with both hands, 221 with the flat bevel 21 in both sides, form first blade 23 between 211 respectively, second blade 231, the 4th blade 25, the 5th blade 251;

During use, each convex cone piece 2 can be screwed into the described material 3 (as: timber) that is fixed when interior gradually along with described outside thread 13, described first blade 23, described second blade 231, described the 3rd blade 24, described the 4th blade 25 and described the 5th blade 251 can form the different direction cutting to the fiber of (contact position) in the described material 3 that is fixed, make it to produce suitable fracture and form a fragmentation zone 31, reducing the surface friction drag to described screw body 1 (outside thread 13), to be screwed into action more laborsaving and smooth and easy and make; Therefore simultaneously,, can effectively absorb described screw body 1 and be screwed into internal stress in the described material 3 that is fixed, avoid the fiber of described material 3 inside that are fixed to produce and destroy slight crack owing to the described fiber that is fixed material 3 inside ruptures through suitable cutting.

Please join Fig. 5, as can be known on the utility model second embodiment's the outside thread that is configured in described screw body 1 13, following both side surface (also can only be separately set in uper side surface) is provided with plural convex cone piece 4 adjacent and arranged side by side respectively, each convex cone piece 4 has a wall by described screw body 1 and is the last flat bevel 41 that the convergent triangle extends to the flank of thread stage casing of described outside thread 13, the both sides of flat bevel 41 are respectively equipped with perpendicular to the flat bevel 411 of the side of described outside thread 13 described, 412, make described flat bevel 41 both sides and the flat bevel 411 in both sides, 412 positions that are connected form one first blade 42 respectively, one or two blades 43, and the flat bevel 411 in described both sides, 412 connected portion forms one the 3rd blade 44;

During use, when each convex cone piece 4 along with in described outside thread 13 is screwed into the gradually described material 3 (as: timber) that is fixed the time, described first blade 42, described second blade 43 and described the 3rd blade 44 can form the different direction cutting to the fiber of (contact position) in the described material 3 that is fixed, with the effect of formation with the identical reduction surface friction drag of aforementioned first embodiment, simultaneously, also can avoiding improperly, internal stress causes the fiber of described material 3 inside that are fixed to produce the destruction slight crack.

From the above mentioned as can be known, the improvement of the utility model bolt structure has saving operation strength really, promotes the smoothness of operation and can reduce internal stress, avoids destroying the effect that screws togather the position material structure, has really had usability, novelty and progressive on the industry.

More than explanation is just illustrative for the utility model; and it is nonrestrictive; those of ordinary skills understand; under the situation of the spirit and scope that do not break away from following claims and limited; can make many modifications; change, or equivalence, but all will fall in the protection domain of the present utility model.

Claims

1. the improvement of a bolt structure, it comprises at least: screw body and convex cone piece, described screw body are respectively equipped with a pointed cone end and at two ends can be provided with the outside thread of spiral extension for the lock that bottle opener the inserts end of pulling at the wall of described screw body periphery; It is characterized in that:

Plural number convex cone piece is arranged in the outside thread of described screw body on the wall between adjacent two screw threads, and has the flat bevel that plural number extends to different direction on each convex cone piece surface, make the blade that forms sharp-pointed bending between each flat bevel respectively, at least one side surface of each convex cone piece is engaged in described externally threaded surface.

2. the improvement of bolt structure as claimed in claim 1, it is characterized in that, described convex cone piece has one and is the last flat bevel of the cone-shaped extension of convergent triangle by the outside screw thread edge of the wall of described screw body, and the both sides of flat bevel are provided with perpendicular to the flat bevel of described externally threaded side described.

3. the improvement of bolt structure as claimed in claim 2 is characterized in that, described convex cone piece extends to externally threaded flank of thread stage casing by the wall of described screw body.

4. the improvement of bolt structure as claimed in claim 2 is characterized in that, the position that described flat bevel both sides are connected with the flat bevel of described side forms one first blade, one second blade respectively, and the connected portion between the flat bevel in described both sides forms one the 3rd blade.

5. the improvement of bolt structure as claimed in claim 3 is characterized in that, the position that described flat bevel both sides are connected with the flat bevel of described side forms one first blade, second blade respectively, and the connected portion between the flat bevel in described both sides forms one the 3rd blade.