CN203009536U

CN203009536U - Anti-loosening nut group combined structure

Info

Publication number: CN203009536U
Application number: CN 201220720755
Authority: CN
Inventors: 林成懋
Original assignee: Degang Co ltd
Current assignee: Degang Co ltd
Priority date: 2012-12-25
Filing date: 2012-12-25
Publication date: 2013-06-19
Anticipated expiration: 2022-12-25

Abstract

A locking nut assembly structure is composed of a nut and a gasket; the screw cap is provided with a screw hole, and a conical ring is arranged on the periphery of the screw hole in an outward extending way; the center of the gasket is provided with a taper hole, and the taper hole comprises a limiting section with a thickness and an annular taper section which is inclined outwards; the nut conical ring is placed into the conical hole of the gasket, and a convex ring which is expanded outwards and has the diameter larger than the aperture of the conical hole is formed at the ring opening of the conical ring and is limited by the limiting section of the gasket, so that the nut and the gasket can keep an ideal gap in the radial direction and the axial direction, and the free rotation of the gasket is ensured.

Description

Jam nut group combining structure

Technical field

The utility model relates to a kind of jam nut group combining structure, refers in particular to a kind of jam nut shim pack that is used in, and after utilizing the set circular cone annular strain of nut center hole to enlarge, reaches the nut block combining structure of being combined with pad and guaranteeing the smooth rotation of pad.

Background technique

Please refer to shown in Figure 1ly, for seeing the combining structure of a kind of nut and pad, comprise a nut 10 and a pad 11; Wherein this nut 10 has a screw 101, by periphery extension one cylinder ring 102 of this screw 101; Relative, this pad 11 is provided with the center hole 111 greater than this cylinder ring 102, is constructed with an annular groove 112 greater than this center hole 111 apertures in the periphery of this center hole 111.The combination of this two member, after the cylinder ring 102 of nut 10 is inserted the center hole 111 of pad 11, the collar extension 103 of utilizing the die head of a punch die to impact this cylinder ring 102, enlarge and surpass center hole 111 apertures in order to the footpath of collar extension 103 is enclosed, make nut 10 and the configuration of pad 11 mutually interfere and can't relative separation, and keep suitable gap.

Although on carry and see that the nut block combining structure can reach the effect that mutually combines, yet, the configuration that this cylinder ring 102 extends out, but there are at least the several disappearances of the following stated: 1. extending out due to cylinder ring collar extension 103 external forms, the movable gap 13 of 111 of collar extension 103 and annular groove 112 and center holes is dwindled, and then affect the movable distance of pad 11 aspect radially, situation severe patient, generally can make collar extension 103 be stuck in pad annular groove 112 and can't rotate, affect the fastening effect of nut.2. in addition, larger if enclose in the footpath that collar extension 103 extends out, just cylinder ring 102 be the part of straight tube relatively can be shorter, this phenomenon means the axially movable stroke of pad, also can shorten along with extending out of collar extension 103; When if this structure is used in the anti-theft screw cap that has the chisel teeth configuration between nut and pad, need long axial spacing during to the top due to two chisel teeth thicknesss of nut and pad, the disappearance of above-mentioned configuration known, just might can't provide the wedge shape nut block required axial stroke, and then make pad pushed away from collar extension and cause two members to separate.

refer again to Fig. 2, because above disappearance, bore inclined-plane 15 if as announcement in figure, pad 14 center holes 141 are formed one by upper surface to lower surface, although help to improve the disappearance that nut collar extension and pad annular groove easily block, yet found by graphic, because the chisel teeth 16 of pad is one to have the three-dimensional inclined-plane of varied in thickness, therefore, after the design of cone inclined-plane 15, actual path only is positioned at the thickness of these chisel teeths 16, that is, only there are several points of these thicknesss to have axial external form binding force, when the relative level of bulge loop and pad or angle deflection a little, collar extension just is easy to passed through and broken away from pad by place, 16 larger footpaths of chisel teeth, not satisfactory, therefore the composite structure of the above-mentioned nut block of carrying should have and can improve part.

Summary of the invention

The utility model main purpose is to provide a kind of nut and pad of making effectively in conjunction with also guaranteeing the bolt group composite structure of rotation.

For achieving the above object, the jam nut group combining structure that the utility model proposes is made of a nut and a pad; This nut has a screw, and the bottom surface of this nut is formed with one first sphenoid surface, and this first sphenoid surface is formed by at least one unidirectional chisel teeth; This pad central authorities have taper hole, and this pad end face is formed with second sphenoid surface corresponding with the first sphenoid surface appearance of nut, and the bottom surface is provided with the arris fillet of at least one radial arrangement; The bottom surface is provided with the arris fillet of at least one radial arrangement; It mainly improves and is:

This first sphenoid surface outwards extends a circular cone ring near the periphery of this screw; This taper hole comprises a limitation section and a ring cone section, this limitation Duan Jing encloses and is slightly larger than circular cone ring external diameter, be to extend a thickness by the lowermost end of the second set unidirectional chisel teeth of sphenoid surface to the pad bottom surface to be formed, outwards tiltedly go out to form the ring with a cant angle by this limitation section simultaneously and bore section;

This nut circular cone ring is inserted the taper hole of this pad, and the collar extension place of circular cone ring is formed extend out and bulge loop greater than the taper hole aperture is enclosed in the footpath, and is restricted to the limitation section place of pad, makes nut and pad have comparatively ideal gap on axial radially reaching.

The main body of this pad is circle or hexagon.

The size of this thickness is between 0.1～0.3mm.

The angle at this cant angle is between 25～35 °.

The external diameter of this circular cone ring is wide, and the thickness of root is greater than the collar extension place.

The external diameter of this bulge loop is vertical configuration, and the following circular cone ring external diameter of bulge loop keeps straight.

Description of drawings

Fig. 1 is structure and the combination machining sketch chart of the nut block of having seen.

Fig. 2 shows that the configuration of having seen after nut and pad combination concerns schematic diagram.

Fig. 3 is three-dimensional appearance schematic diagram of the present utility model.

Fig. 4 is sectional schematic diagram of the present utility model.

The primary clustering symbol description:

10. nut; 101. screw;

102. cylinder ring; 103. collar extension;

11. pad; 111. center hole;

112. annular groove; 13. gap;

14. pad; 141. center hole;

15. cone inclined-plane; 16. chisel teeth;

20. nut; 21. screw;

22. the first sphenoid surface; 23. unidirectional chisel teeth;

231. inclined-plane; 232. block face;

24. circular cone ring; 241. collar extension;

242. bulge loop; 30. pad;

31. taper hole; 311. limitation section;

A. thickness; 312. ring cone section;

B. cant angle;

32. the second sphenoid surface; 33. arris fillet;

331. inclined-plane; 332. vertical wall;

34. recess; 40. punch die.

Embodiment

See also shown in Figure 3ly, the utility model is made of a nut 20 and a pad 30, wherein:

This nut 20 is the hexagonal cylindricality nut that central authorities have a screw 21, the bottom surface of this nut 20 is formed with one first sphenoid surface 22, this first sphenoid surface 22 is formed by at least one unidirectional chisel teeth 23, this unidirectional chisel teeth 23 is made of an inclined-plane 231 and a vertical block face 232, under the angle of the same center of circle, the outer rim on this inclined-plane 231 is identical with the height of inner edge; This first sphenoid surface 22 outwards extends a circular cone ring 24 near the periphery of screw 21, is observed by section, and the external diameter of this circular cone ring 24 is wide, and the thickness of close root forms the inner circle taper greater than collar extension 241 places.

these pad 30 end faces are formed with second sphenoid surface 32 corresponding with the first sphenoid surface 22 appearance of nut 20, and the bottom surface is provided with the arris fillet 33 of at least one radial arrangement, the section configuration of this arris fillet 33 is made of an inclined-plane 331 and a vertical wall 332, and this inclined-plane 331 is along screwing the direction setting, pad 30 central authorities have taper hole 31, this taper hole 31 comprises limitation section 311 and one a ring cone section 312, this limitation section 311 footpaths are enclosed and are slightly larger than circular cone ring 24 external diameters, bottommost by the second sphenoid surface 32 set unidirectional chisel teeths is formed to pad 30 bottom surfaces extension one thickness A, outwards tiltedly go out to form the ring cone section 312 with a cant angle B by this limitation section 311 simultaneously, for avoiding thickness or cant angle excessive or too small, affect nut and pad in conjunction with effect, the size of this thickness A is better for being between 0.1～0.3mm, should be with respect to the preferred angle of the cant angle B in taper hole 31 axle center between 25～35 °, the improvement of above-mentioned jam nut group combining structure, the main body external form of this pad 30 can be circle, and periphery can further be provided with at least one recess 34, can dismantle for a special tool mat power, certainly, the main body external form of this pad also can be hexangle type, and general hand tools operation conveniently is provided.

After the utility model is implemented according to said structure, the circular cone ring 24 of nut 20 is passed the taper hole 31 of pad 30, and utilize a punch die 40 that the collar extension 241 of circular cone ring 24 is enlarged.As shown in Figure 4, because the Thickness Ratio root at collar extension 241 places is thin, therefore the collar extension 241 easy stress deformations in place extend out, enclose bulge loop 242 greater than taper hole 31 apertures and form a footpath, and limited than the limitation section 311 that path encloses by pad, make nut 20 and pad 30 reach combination and unlikely effect of separating; Specifically, also because the thickness at collar extension 241 places is thin than root, make the external diameter angle of bulge loop 242 can inwardly bring together and slightly be vertical configuration, and circular cone ring 24 external diameters of bulge loop 242 below also are difficult for outer and become greatly, and can keep straight; Accordingly, the comparatively ideal axial gap that radially reaches can be possessed in the gap that circular cone ring 24 and limitation section 311 and ring cone section are 312 at nut after pad is combined, guarantee freely rotating of pad.

in sum, nut block combining structure of the present utility model, can improve the compound mode of having seen nut component, the disappearance that easily causes the binding site gap to dwindle, really reached default purpose, the demand that meets industry fully, the whence proposes patent application in accordance with the law, only, though the utility model discloses with aforementioned preferred embodiment, so it is not to limit the utility model, anyly be familiar with this skill person, within not breaking away from spirit and scope of the present utility model, when being retouched or revise, therefore protection domain of the present utility model is as the criterion when looking accompanying the claim person of defining.

Claims

1. A combination structure of anti-loosening nut group, which is made of a nut and a gasket, the nut has a screw hole, the bottom surface of the nut forms a first wedge-shaped surface, and the first wedge-shaped surface is formed by At least one unidirectional wedge-shaped tooth is formed; the center of the gasket has a tapered hole, the top surface of the gasket is formed with a second wedge-shaped surface corresponding to the shape of the first wedge-shaped surface of the nut, and the bottom surface is provided with at least one radially arranged The sharp fillet; the bottom surface is provided with at least one radially arranged sharp fillet; it is characterized in that:

A conical ring is extended outwardly from the first wedge-shaped surface close to the periphery of the screw hole;

The tapered hole includes a limited section and a ring cone section. The diameter of the limited section is slightly larger than the outer diameter of the conical ring, and is formed by extending a thickness from the bottom end of the one-way wedge-shaped tooth provided on the second wedge-shaped surface to the bottom surface of the gasket. Simultaneously, a ring cone section with a slanting angle is formed by slanting outwards from the limited section;

Put the nut conical ring into the tapered hole of the gasket, and form a protruding ring at the ring opening of the conical ring that expands outwards and whose diameter is larger than the diameter of the tapered hole, and is limited to the limited section of the gasket.

2. The anti-loosening nut assembly combination structure according to claim 1, characterized in that, the main body of the washer is circular.

3. The combination structure of anti-loosening nut group according to claim 1, characterized in that, the main body of the washer is hexagonal.

4 . The combination structure of anti-loosening nut assembly according to claim 1 , wherein the thickness is between 0.1 mm and 0.3 mm.

5 . The combination structure of anti-loosening nut groups according to claim 1 , wherein the oblique angle is between 25° and 35°.

6. The combination structure of anti-loosening nut group according to claim 1, characterized in that, the outer diameter of the conical ring is equal in width, and the thickness of the root is greater than that of the ring mouth.

7. The anti-loosening nut assembly combination structure according to claim 1, wherein the outer diameter of the protruding ring is vertical, and the outer diameter of the conical ring below the protruding ring remains straight.