CN201166038Y

CN201166038Y - Sawteeth inner hexagon lock screw

Info

Publication number: CN201166038Y
Application number: CN 200820084655
Authority: CN
Inventors: 蔡体勇; 陆昱森
Original assignee: Ningbo Donggang Fastener Manufacturing Co Ltd
Current assignee: Ningbo Donggang Fastener Manufacturing Co Ltd
Priority date: 2008-03-26
Filing date: 2008-03-26
Publication date: 2008-12-17
Anticipated expiration: 2018-03-26

Abstract

The utility model disclosed a serrated hex socket head anti-loosening screw comprising a screw body. A connection body which is connected with the external applying force is manufactured on the screw body, a holding-pressing surface contacting with the surface of a workpiece is manufactured on the connection body, the circumferential circle of the holding-pressing surface is manufactured with a sawtooth-like layer, the sawtooth-like layer forms at least five sawtooth-like convex bodies arranged in equal radian, top ridges manufactured on the sawtooth-like convex bodies extend to form perpendicular faces which are perpendicular to the holding-pressing surface, a sawtooth-backing face is formed between one top ridge of the other sawtooth-like convex body in two close sawtooth-like convex bodies and the perpendicular face, the deepening direction of the sawtooth-backing face towards the perpendicular face corresponds with the inherent tightening direction of the screw body, and the sawtooth-like layer is manufactured on the holding-pressing surface of the connection body, thereby increasing the screw-out force by 46% under the same fastening force, and having fine loose-proof effect. One sawtooth-like layer is added to the original structure, and thereby the serrated hex socket head anti-loosening screw is simple in structure, can be universally used like other screws, and has fine interchangeability and adaptability.

Description

Hexagonal backing-up screw in the zigzag fashion

Technical field

The utility model relates to the technical field of fastening piece in the mechanical parts, hexagonal backing-up screw in particularly a kind of zigzag fashion.

Background technique

At present the screw in the society is except that thin teeth screw carries certain auto-lock function, and the locking property that other coarse thread screw is general is not strong, but generally can take some locking measures when mounted, as modes such as bullet pad, double nuts; But a kind of backing-up screw structure that structurally has locking teeth is also arranged in the society, is that the Chinese utility model patent " checknut connection part " (notification number is CN2733064Y) of ZL200420112197.X is exactly this type of design as the patent No.; Comprise chek bolt connection part and backing-up screw connection part, on the bottom surface of nut or screw head, be provided with at least two sharp-tooth shaped projectioies, and become radial and be evenly arranged on this plane; And on the upper and lower surface of compression spring, be provided with at least two sawtooth projections, and become radial and be evenly arranged on this two plane.Anti-loose structure according to this design, mainly be zigzag protruding block, but the making of this zigzag protruding block is highly lower, be a kind of bar rib of regular arrangement, the pawl function that it had a little less than, the promptly unmatched sword and retreat advantage smoothly of charging, zigzag protruding block wearing and tearing are very fast, be actually disposable using effect, do not have repeatedly dismounting and the advantage of installation, so its relative user cost is higher; And the use of this structure is based on screw and pad, or the combination of nut and pad, and the protruding block structure that also must dispose pad when making screw or nut is loaded down with trivial details, whole usability and obtain anti-loosing effect bigger reduction is all arranged.

Summary of the invention

Technical problem to be solved in the utility model is the present situation at prior art, provide a kind of make simple, add carried convenient, anti-loosing effect and reach hexagonal backing-up screw in the stronger zigzag fashion of versatility well.

The utility model solves the problems of the technologies described above the technological scheme that is adopted: hexagonal backing-up screw in the zigzag fashion, comprise screw body, and this screw body is shaped on the connecting body that can be connected with outside reinforcing; And this connecting body be shaped on can with the roof pressure face of workpiece phase surface touching, this roof pressure face ring border is shaped on the sawtooth layer, the sawtooth layer is formed the sawtooth convex bodys that have at least five to wait radians to arrange, the top rib that the sawtooth convex body is shaped on is extended with the vertical surface perpendicular to the roof pressure face; Be formed with between the top rib of another mutually adjacent sawtooth convex body and the vertical surface and move back the flank of tooth, and this to move back the intrinsic tightening direction of intensification direction that the flank of tooth trends towards vertical surface and screw body consistent; Move back the flank of tooth and the roof pressure face is formed with angle α; The angle value scope of angle α is that 8 degree are to 15 degree; The roof pressure face is the circular cone anchor ring or the plane of a loop of 90 degree intersections mutually; Above-mentioned connecting body comprises interior hexagon at least with the outside afterburning structure that is connected; And this connecting body is divided into countersunk raised head mode and full countersunk head mode with the mode that workpiece is equipped with mutually.

The measure of taking also comprises:

The angle value of above-mentioned angle α is 10 degree; Above-mentioned screw body also is shaped on the spiro column that can screw in the workpiece, and this spiro column outer surface a kind of technological scheme of being shaped on screw thread be dextrorotation to; Above-mentioned sawtooth convex body is at least ten.

The another kind of technological scheme of screw thread, the angle value of above-mentioned angle α are 10 degree; Above-mentioned screw body also is shaped on the spiro column that can screw in the workpiece, and the another kind of technological scheme that this spiro column outer surface is shaped on screw thread is counterclockwise rotation direction; Above-mentioned sawtooth convex body is at least ten.

Above-mentioned screw thread is a metric system; And this screw thread metric system value scope be the 6M millimeter to the M8 millimeter, correspondingly, above-mentioned sawtooth convex body is 24.

Above-mentioned screw thread is a metric system, and this screw thread metric system value scope be the M10 millimeter to the M12 millimeter, correspondingly, above-mentioned sawtooth convex body is 30.

Above-mentioned screw thread is a metric system, and this screw thread metric system value scope be the M14 millimeter to the M16 millimeter, correspondingly, above-mentioned sawtooth convex body is 39.

Compared with prior art, the utility model is shaped on the connecting body that can be connected with outside reinforcing; And this connecting body be shaped on can with the roof pressure face of workpiece phase surface touching, this roof pressure face ring border is shaped on the sawtooth layer, the sawtooth layer is formed the sawtooth convex bodys that have at least five to wait radians to arrange, the top rib that the sawtooth convex body is shaped on is extended with the vertical surface perpendicular to the roof pressure face; Be formed with between the top rib of another mutually adjacent sawtooth convex body and the vertical surface and move back the flank of tooth, and this to move back the intrinsic tightening direction of intensification direction that the flank of tooth trends towards vertical surface and screw body consistent.Advantage of the present utility model is: make the sawtooth layer on connecting body roof pressure face, under same screwing force effect, can improve 46% the power of back-outing; Radial sawtooth convex body is set, gets loose in the difficulty further having improved screw, effectively prevented more easily getting loose of screw, have anti-loosing effect preferably; Increase one deck sawtooth layer on original structure, make simply, can be with when other screw is mutually general, interchangeability and applicability be better.

Description of drawings

Fig. 1 is the utility model embodiment's a traverse schematic representation;

Fig. 2 is that schematic representation is looked on the right side of Fig. 1;

Fig. 3 is that schematic representation is looked on the left side of Fig. 1;

The partial schematic diagram at connecting body place when Fig. 4 is overlooking of Fig. 1;

Fig. 5 is the enlarged diagram of sawtooth layer among Fig. 1;

The traverse schematic representation of hexagon in band when Fig. 6 is the utility model embodiment countersunk head;

Fig. 7 is that schematic representation is looked on the left side of Fig. 6;

Fig. 8 is Fig. 1 schematic cross section;

Fig. 9 is Fig. 6 schematic cross section.

Embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

To embodiment shown in Figure 9, figure grade illustrates as Fig. 1: screw body 1, and connecting body 1a, roof pressure face 1b, spiro column 1c, screw thread 1d, tightening direction 11, sawtooth layer 2, sawtooth convex body 21, top rib 21a, vertical surface 21b moves back the flank of tooth 22, interior hexagon 4.

Hexagonal backing-up screw in the utility model embodiment, zigzag fashion comprises screw body 1, and this screw body 1 is shaped on the connecting body 1a that can be connected with outside reinforcing; And this connecting body 1a be shaped on can with the roof pressure face 1b of workpiece phase surface touching, this roof pressure face 1b ring border is shaped on sawtooth layer 2, sawtooth layer 2 is formed the sawtooth convex body 21 that has at least five to wait radian to arrange, the top rib 21a that sawtooth convex body 21 is shaped on is extended with the vertical surface 21b perpendicular to roof pressure face 1b; Be formed with between the top rib 21a of another mutually adjacent sawtooth convex body 21 and the vertical surface 21b and move back the flank of tooth 22, and this to move back the intrinsic tightening direction 11 of intensification direction that the flank of tooth 22 trends towards vertical surface 21b and screw body 1 consistent.

Present embodiment is achieved in that moving back between the flank of tooth 22 and the roof pressure face 1b and is formed with angle α; And the angle value scope of this angle α be 8 the degree to 15 the degree, the angle value of angle α in the present embodiment be 10 the degree; Simultaneously screw body 1 also is shaped on the spiro column 1c that can screw in the workpiece, and this spiro column 1c outer surface be shaped on dextrorotation to screw thread 1d; Perhaps this spiro column 1c outer surface is shaped on the screw thread 1d of counterclockwise rotation direction; Correspondingly, general sawtooth convex body 21 is at least ten.

The ident value of screw thread 1d can be a metric size, also can be the mode that English system waits other, and the domestic of China generally is based on metric system.Carry out now the configuration instruction of several screws and sawtooth with metric size: generally speaking, be M6 millimeter during to the M8 millimeter in this screw thread 1d metric system value scope, correspondingly, sawtooth convex body 21 is 24; In this screw thread 1d metric system value scope is M10 millimeter during to the M12 millimeter, and correspondingly, sawtooth convex body 21 is 30; In this screw thread 1d metric system value scope is M14 millimeter during to the M16 millimeter, and correspondingly, sawtooth convex body 21 is 39; When the scope of screw thread 1d metric system value scope is not in this scope, specifically can be as the criterion with the making of reality.

Embodiment as shown in Figure 6 and Figure 7, hexagon in the band when being countersunk head; Correspondingly, connecting body 1a is interior hexagon 4 with the outside afterburning structure that is connected; And this connecting body 1a is divided into full countersunk head mode with the mode that workpiece is equipped with mutually.

Among the above embodiment who shows, roof pressure face 1b is the circular cone anchor rings that phase 90 degree intersect; Roof pressure face 1b during exception goes out to be a plane of a loop that pairing connecting body 1a goes out interior hexagon 4 with the outside afterburning structure that is connected simultaneously; And this connecting body 1a goes out to be divided into countersunk raised head mode and full countersunk head mode with the mode that workpiece is equipped with mutually.

Advantage of the present utility model is: make the sawtooth layer on connecting body roof pressure face, under same screwing force effect, can improve 46% the power of back-outing; Radial sawtooth convex body is set, gets loose in the difficulty further having improved screw, effectively prevented more easily getting loose of screw, have anti-loosing effect preferably; Increase one deck sawtooth layer on original structure, make simply, can be with when other screw is mutually general, interchangeability and applicability be better.

Most preferred embodiment of the present utility model is illustrated, and various variations or the remodeling made by those of ordinary skills can not break away from scope of the present utility model.

Claims

1, hexagonal backing-up screw in the zigzag fashion comprises screw body (1), and described screw body (1) is shaped on the connecting body (1a) that can be connected with outside reinforcing; And this connecting body (1a) be shaped on can with the roof pressure face (1b) of workpiece phase surface touching, it is characterized in that: described roof pressure face (1b) ring border is shaped on sawtooth layer (2), described sawtooth layer (2) is formed the sawtooth convex body (21) that has at least five to wait radian to arrange, the top rib (21a) that described sawtooth convex body (21) is shaped on is extended with the vertical surface (21b) perpendicular to roof pressure face (1b); Be formed with between the top rib (21a) of another described mutually adjacent sawtooth convex body (21) and the vertical surface (21b) and move back the flank of tooth (22), and this to move back the intrinsic tightening direction (11) of intensification direction that the flank of tooth (22) trends towards vertical surface (21b) and screw body (1) consistent; The described flank of tooth (22) that moves back is formed with angle α with roof pressure face (1b); The angle value scope of described angle α is that 8 degree are to 15 degree; Described roof pressure face (1b) is the circular cone anchor ring or the plane of a loop of 90 degree intersections mutually; Described connecting body (1a) is interior hexagon (4) with the outside afterburning structure that is connected.

2, hexagonal backing-up screw in the zigzag fashion according to claim 1 is characterized in that: the angle value of described angle α is 10 degree; Described screw body (1) also is shaped on the spiro column (1c) that can screw in the workpiece, and this spiro column (1c) outer surface be shaped on dextrorotation to screw thread (1d); Described sawtooth convex body (21) is at least ten.

3, hexagonal backing-up screw in the zigzag fashion according to claim 1 is characterized in that: the angle value of described angle α is 10 degree; Described screw body (1) also is shaped on the spiro column (1c) that can screw in the workpiece, and this spiro column (1c) outer surface is shaped on the screw thread (1d) of counterclockwise rotation direction; Described sawtooth convex body (21) is at least ten.

4, according to hexagonal backing-up screw in the described zigzag fashion of the arbitrary claim of claim 1 to 3, it is characterized in that: described screw thread (1d) is a metric system; And this screw thread (1d) metric system value scope be the M6 millimeter to the M8 millimeter, correspondingly, described sawtooth convex body (21) is 24.

5, according to hexagonal backing-up screw in the described zigzag fashion of the arbitrary claim of claim 1 to 3, it is characterized in that: described screw thread (1d) is a metric system, and this screw thread (1d) metric system value scope be the M10 millimeter to the M12 millimeter, correspondingly, described sawtooth convex body (21) is 30.

6, according to hexagonal backing-up screw in the described zigzag fashion of the arbitrary claim of claim 1 to 3, it is characterized in that: described screw thread (1d) is a metric system, and this screw thread (1d) metric system value scope be the M14 millimeter to the M16 millimeter, correspondingly, described sawtooth convex body (21) is 39.