CN204828243U - But flexible bolt and nut subassembly of axial - Google Patents

Abstract

The utility model discloses a but flexible bolt and nut subassembly of axial, including bolt body, nut body and packing ring, the bolt body including screw rod and nut, the one end of nut is provided with the adapter sleeve, the adapter sleeve on have a plurality of draw -in grooves along the linear equipartition of its axis direction, the screw rod on be equipped with and penetrate axial extension end in the adapter sleeve, just the axial extension end comprises a plurality of connecting blocks that are the circumference equipartition, be provided with on the outer tip of the axial of connecting block can with correspond the draw -in groove and constitute the fixed barb of joint, correspond on the nut body offered and screw rod looks spiro union complex screw, serve in the axial of nut body still be equipped with with coaxial and the diameter of screw is greater than the reaming of screw, the built -in wear -resisting circle of annular elasticity that is equipped with of reaming, through adopting above -mentioned structure, the utility model provides a not only had had good locking effect simultaneously but also can the flexible bolt and nut subassembly of axial.

Description

A kind of can the bolt and nut component of axial stretching

Technical field

The utility model relates to fastener areas, be specifically related to a kind of can the bolt and nut component of axial stretching.

Background technique

The bolt and nut component be made up of bolt body, nut body and packing ring is a kind of conventional fastener assembly, but in the occasion that some shake, after nut body coordinates with bolt body, often easily occurs the phenomenon got loose, thus easily affects the reliable operation of equipment.Meanwhile, because existing bolt body all cannot carry out axial stretching, therefore when above-mentioned bolt and nut component is used to fastening different product, often need different length specifications, thus cause bolt and nut component of a great variety, lack versatility.

Summary of the invention

For the deficiencies in the prior art, the utility model provides a kind ofly not only had had good anti-loosing effect simultaneously but also can the bolt and nut component of axial stretching.

For achieving the above object, the utility model provide a kind of can the bolt and nut component of axial stretching, include bolt body, nut body and packing ring, described bolt body includes screw rod and nut, one end of described nut is provided with connecting sleeve, described connecting sleeve is linearly evenly equipped with multiple draw-in groove along its axial direction, described screw rod is provided with the axial extending end penetrated in described connecting sleeve, and described axial extending end is made up of some circumferentially uniform contiguous blocks, the axial outer end portion of described contiguous block is provided with and can forms with corresponding draw-in groove the barb connected and fixed, described nut body and packing ring are all set on screw rod, and described packing ring correspondence is positioned at the axially inner side of nut body, on nut body, correspondence offers the screw coordinated with described screw rod bolt, the axial inner ends of described nut body is also provided with the reaming that and diameter coaxial with described screw is greater than described screw, cyclic spring wear-resisting ring is equiped with in described reaming, and the axial outer end face of described cyclic spring wear-resisting ring is provided with two extended legs, an oval cavity is formed between two extended legs, annular ring is equiped with in described oval cavity, it is the annular protrusion of reversed V-shape that described packing ring is provided with a cross section on the axial inner ends face of nut body, and the V-arrangement tip of described annular protrusion penetrates in described oval cavity, and abut with annular ring, two extended leg ends on cyclic spring wear-resisting ring are resisted against on the bi-side, V-arrangement tip of annular protrusion respectively.

The beneficial effects of the utility model are: adopt said structure, by the draw-in groove card of diverse location on the contiguous block barb on screw rod and connecting sleeve is joined, the axial stretching of bolt body can be realized, thus make bolt and nut component provided by the utility model can be used to the product of fastening various different length, there is good versatility.Simultaneously, when above-mentioned nut body and packing ring with bolt body lock assemble time, the axial outer end kept man of a noblewoman of described packing ring nut body dorsad first can abut with the product formation be fixed, thus impel the V-arrangement tip of the reversed V-shape annular protrusion be positioned on packing ring axial inner ends face inwardly to extrude annular ring, annular ring axially will move inward along oval cavity, and in the process of movement, impel two extended leg radially outwards on described cyclic spring wear-resisting ring to move, thus make the screw rod of described extended leg and bolt body form frictional fit, effectively prevent nut body from occurring the phenomenon that gets loose after mounting.

It is radial through on the outer peripheral surface of connecting sleeve that the utility model can be set to described draw-in groove further.Such setting, not only can make to be formed between barb and draw-in groove block more solid and reliablely join fixing, and the assembly connection be conducive between barb and draw-in groove or fractionation.

The utility model also can be set to described contiguous block further and be preferably two pieces, and is pressed with Compress Spring between barb on two contiguous blocks.Such setting, under the effect of Compress Spring, can effectively prevent barb from skidding off in draw-in groove.

Accompanying drawing explanation

Fig. 1 is structure sectional view of the present utility model;

Fig. 2 is the I portion enlarged view of Fig. 1.

Embodiment

Give as shown in Figure 1, 2 a kind of can the bolt and nut component of axial stretching, include bolt body 1, nut body 2 and packing ring 3, described bolt body 1 includes screw rod 11 and nut 12, one end of described nut 12 is provided with connecting sleeve 13, described connecting sleeve 13 is linearly evenly equipped with multiple draw-in groove 131 along its axial direction, and described draw-in groove 131 is radial through on the outer peripheral surface of connecting sleeve 13.Described screw rod 11 is provided with the axial extending end 14 penetrated in described connecting sleeve 13, and described axial extending end 14 is made up of some circumferentially uniform contiguous blocks 141, the axial outer end portion of described contiguous block 141 is provided with and can forms with corresponding draw-in groove 131 barb 142 connected and fixed, described contiguous block 141 is preferably two pieces, and is pressed with Compress Spring 4 between barb 142 on two contiguous blocks 141.Described nut body 2 and packing ring 3 are all set on screw rod 11, and described packing ring 3 correspondence is positioned at the axially inner side of nut body 2, on nut body 2, correspondence offers the screw 21 coordinated with described screw rod 11 bolt, the axial inner ends of described nut body 2 is also provided with the reaming 22 that and diameter coaxial with described screw 21 is greater than described screw 21, cyclic spring wear-resisting ring 5 is equiped with in described reaming 22, and the axial outer end face of described cyclic spring wear-resisting ring 5 is provided with two extended legs 51, an oval cavity 52 is formed between two extended legs 51, annular ring 6 is equiped with in described oval cavity 52, described packing ring 3 is provided with the annular protrusion 32 that a cross section is reversed V-shape on the axial inner ends face 31 of nut body 2, and the V-arrangement tip 321 of described annular protrusion 32 penetrates in described oval cavity 52, and abut with annular ring 6, two extended leg 51 ends on cyclic spring wear-resisting ring 5 are resisted against on the bi-side, V-arrangement tip 322 of annular protrusion 32 respectively.By adopting said structure, the utility model provides a kind ofly not only had had good anti-loosing effect simultaneously but also can the bolt and nut component of axial stretching.

Claims (3)

1. one kind can the bolt and nut component of axial stretching, include bolt body, nut body and packing ring, it is characterized in that: described bolt body includes screw rod and nut, one end of described nut is provided with connecting sleeve, described connecting sleeve is linearly evenly equipped with multiple draw-in groove along its axial direction, described screw rod is provided with the axial extending end penetrated in described connecting sleeve, and described axial extending end is made up of some circumferentially uniform contiguous blocks, the axial outer end portion of described contiguous block is provided with and can forms with corresponding draw-in groove the barb connected and fixed, described nut body and packing ring are all set on screw rod, and described packing ring correspondence is positioned at the axially inner side of nut body, on nut body, correspondence offers the screw coordinated with described screw rod bolt, the axial inner ends of described nut body is also provided with the reaming that and diameter coaxial with described screw is greater than described screw, cyclic spring wear-resisting ring is equiped with in described reaming, and the axial outer end face of described cyclic spring wear-resisting ring is provided with two extended legs, an oval cavity is formed between two extended legs, annular ring is equiped with in described oval cavity, it is the annular protrusion of reversed V-shape that described packing ring is provided with a cross section on the axial inner ends face of nut body, and the V-arrangement tip of described annular protrusion penetrates in described oval cavity, and abut with annular ring, two extended leg ends on cyclic spring wear-resisting ring are resisted against on the bi-side, V-arrangement tip of annular protrusion respectively.

2. according to claim 1 a kind of can the bolt and nut component of axial stretching, it is characterized in that: described draw-in groove is radial through on the outer peripheral surface of connecting sleeve.

3. according to claim 1 a kind of can the bolt and nut component of axial stretching, it is characterized in that: described contiguous block is two pieces, and be pressed with Compress Spring between barb on two contiguous blocks.