CN205478838U - Nut structure - Google Patents

Abstract

The utility model relates to a nut structure, it is equipped with a nut body to central authorities establish a screw in the nut body, and even are equipped with a plurality of fins around the screw in the upper end of nut body, and in two be formed with the slot between the fin, and the thread of the screw of nut body extending to the inner wall of a plurality of fins, defining a perpendicular the central axis through the screw center again, the going up to contract in the reason and form the toper section towards the the central axis slope of a plurality of fins, and the inner wall of a plurality of fins again is to thread that should toper section department relatively towards protruding the establishing of the central axis slope to form locking thread, borrow this, when with the bolt with the utility model discloses a nut spiro union when combination, this locking thread preset the resistance that the moment of torsion produced, can form the matched stack of nut and bolt promptly and disturb the matching efficiency to effectively make the locking of nut and bolt combine the back, unlikelyly taken off by exogenic action pine such as vibrations, in view of the above, reach the best locking effect of taking off.

Description

Nut structure

Technical field

This utility model is about a kind of nut structure, is espespecially that a kind of multiple fin upper limbs in nut body upper end become The locking thread of type, by the resistance of the preset torque generation of locking thread, to guarantee the nut knot not got loose after locking with bolt Structure.

Background technology

Nut and bolt are commonly used for the combination of two articles, are through two articles on implementing by bolt, then by nut With bolt bolt, and it is fixing to make nut be packed on conclusion part.After nut and bolt are spirally connected, if being in vibrations etc. for a long time Under External Force Acting, the most easily make to get loose between nut and bolt, cause the equipment cannot normal operation, even occurrence injury operator Member's safety etc. are unexpected.

Then, having dealer to research and develop fort type nut, this fort type nut includes two kinds of basic structures, refers to shown in Fig. 5, The form of one nut 3 is in the nut body 31 upper end multiple groove of straight forming 32, refers to again shown in Fig. 6, for another spiral shell The form of cap 3 is then even to stretch in nut body 31 upper end to have multiple fins 33 of annular arrangement, and formation should between two fins 33 Groove 32, and would generally be in extending radially through a pin-and-hole with the bolt 4 of this nut 3 bolt, with after nut 3 and bolt 4 are spirally connected, It is arranged in the pin-and-hole of bolt 4 and the groove 32 of nut 3 location with latch, to improve the anti-loose property of nut 3, and increases latch Supporting and pull, though the anti-loose property of nut 3 can be improved, but nut 3 still can occur loose or dislocation situation in long-time vibrations repeatedly.

Therefore, there is dealer to carry out punching press in nut body 31 side of this nut 3 further, so that the spiral shell of nut body 31 In hole, the thread 34 at corresponding punching press point 311 is deformed, and forms a locking thread 341, so, when being spirally connected with bolt 4, The resistance of the preset torque generation that bolt 4 need to break through this locking thread 341 can continue spiral shell and enter；But, when the thread 41 of bolt 4 By time at this locking thread 341, the thread 41 of bolt 4 will also tend to deform, and makes bolt 4 continue when spiral shell enters more expense Power, and when by after sealed to bolt 4 and nut 3, thread 41 deformed damaged the most of bolt 4, and handling cannot be repeated and use, separately At the punching press of existing nut 3 only at the one or both sides, local of nut body 3, cause bolt 4 stress unequal, due to bolt 4 is relatively big by suffered resistance time at locking thread 341, and it is slow that spiral shell enters the speed relatively normal thread in its side 3, in this, i.e. easily causes Deflection is produced, it is difficult to continue situation about locking, when being intended to bolt 4 is exited interlocking again, due to bolt 4 when bolt 4 is locked Thread 41 deformed damaged, also cannot be spirally connected use again, so that causing material resource to waste.

Therefore, the design people because existing nut structure in use on still have above-mentioned many disappearances, by its for many years in Assisting a ruler in governing a country of the manufacture of association area and design experiences and knowledge, and through clever thought in many ways, grind and create this utility model.

Utility model content

This utility model is about a kind of nut structure, its purpose is to provide a kind of multiple in nut body upper end The locking thread of fin upper limb molding, by the resistance of the preset torque generation of locking thread, the most loose to guarantee after locking with bolt De-nut structure.

In order to reach above-mentioned enforcement purpose, the utility model proposes a kind of nut structure, it is provided with a nut body, and in These nut body central authorities form a screw, and are provided with the multiple fins around this screw in the upper end of this nut body, and Being formed with groove between two fins, the thread of the screw of this nut body extends to the inwall of multiple fin, and definition one is vertical again By the central axis at this screw center, and the upper limb of multiple fin inside contracts the conical section being formed to tilt towards this central axis, many The inwall of individual fin is to relatively tilting projection towards this central axis by the thread at conical section, and forms locking thread.

Nut structure as above, wherein, this nut body connects in its bottom further a flanged housing, this flange The external diameter of seat is more than the external diameter of this nut body, and the screw of this nut body and thread extend through to this flanged housing.

Whereby, when combining when bolt and nut of the present utility model being spirally connected, the preset torque of this locking thread produces Resistance, i.e. can assemble formation interference to nut with bolt and mate effect, after effectively making nut close with bolt lock tight knot, and will not Got loose by External Force Actings such as vibrations, accordingly, reach optimal anti-loose effect, separately when bolt end is by locking thread, can make Fin slightly struts, so that the thread of bolt is when by locking thread, will not be deformed, and according to this, improves bolt and nut Reusability, and owing to this utility model makes multiple fin be 360 degree of annular arrangements, when bolt passes through the locking of multiple fins During thread, it can be ensured that what the resistance that the preset torque of locking thread produces was stable and average acts on bolt, so that bolt is locked Will not glance off during nut, to improve the smooth and easy convenience of nut and bolt interlocking, this utility model is at the bottom of nut body again End connection has a flanged housing, utilizes the bigger locking area that this flanged housing has, when flanged housing bottom surface is resisted against object, and can Increase nut and be packed in the steadiness of object, and further reach to improve anti-loose effect of nut.

Accompanying drawing explanation

The following drawings is only intended to, in schematically illustrating this utility model and explaining, not limit model of the present utility model Enclose.Wherein:

Fig. 1: axonometric chart of the present utility model；

Fig. 2: use state sectional view of the present utility model；

Fig. 3: another embodiment axonometric chart of the present utility model；

Fig. 4: another embodiment of the present utility model uses state sectional view；

Fig. 5: existing use state sectional view ()；

Fig. 6: existing use state sectional view (two).

Reference numeral illustrates:

This utility model:

1 nut 11 nut body

12 screw 13 fins

131 conical section 14 grooves

The 15 locking threads of thread 151

16 central axis 17 flanged housings

2 bolt 21 threads

Existing:

3 nut 31 nut body

311 punching press point 32 grooves

33 fin 34 threads

341 locking thread 4 bolts

41 threads

Detailed description of the invention

For making technological means of the present utility model and the effect that can reach thereof, it is possible to have more completely and clearly disclose, Now describe in detail as follows, see also accompanying drawing and the figure number of exposure:

First, referring to shown in Fig. 1, Fig. 2, for nut 1 of the present utility model, it is provided with a nut body 11, and in this Nut body 11 central authorities form a screw 12, are provided with in 360 degree of annular arrangements in this nut body 11 upper end again, around being somebody's turn to do Screw 12 and multiple fins 13 of setting, and between two fins 13, it is formed with groove 14, separately make the screw 12 of this nut body 11 Thread 15 extends to the plurality of fin 13 inwall, and definition one is perpendicular through the central axis 16 at this screw 12 center again, and makes this Multiple fin 13 upper limbs inside contract to form the conical section 131 tilted towards this central axis 16, separately make the inwall of the plurality of fin 13 To relatively tilting projection towards this central axis 16 by the thread 15 at conical section 131, and form locking thread 151.

Accordingly, when assemble use time, referring again to shown in Fig. 2, a bolt 2 is passed two articles junction, with this reality With novel nut 1 bolt, when bolt 2 end is worn to the screw 12 of nut body 1 of the present utility model, i.e. along spiral shell Thread 15 screwfeed of hole 12 hole wall, when bolt 2 end is fed at nut body 11 upper end fin 13, continues on many Thread 15 spiral shell of individual fin 13 inwall enters, and when bolt 2 end is fed to the locking thread 151 at multiple fin 13 upper limb, Bolt 2 need to be bestowed the force of the preset torque generation resistance breaking through this locking thread 151, so that this bolt 2 end passes this Outside multiple fins 13, and the preset torque by this locking thread 151 produces resistance, and nut 1 and bolt 2 can be made to assemble location After, produce effect of interference coupling, to reach optimal anti-loose effect.

Again after this locking thread 151 is broken through in this bolt 2 end, the multiple fins 13 set up in the form of sheets borrow its elasticity to omit For strutting, during so that the thread 21 of bolt 2 continues through this locking thread 151, reason is not forced through and produces excessive deformation, According to this, to maintain the formedness of the thread 21 of bolt 2, meanwhile, the locking thread 151 also not resulting in this fin 13 damages It is bad, so that nut of the present utility model 1 and bolt 2 all can be repeated several times handling and use, separately by multiple fins 13 in 360 degree of rings Shape spread configuration, can keep bolt 2 to produce stability during resistance by the preset torque of the locking thread 151 of multiple fins 13 And mean forced, so that situation will not be glanced off when bolt 2 is locked, to improve the smooth and easy facility of nut 1 and bolt 2 interlocking Property, and when the thread 21 of bolt 2 is when occurring slightly to deform by the locking thread 151 of nut 1, thread 21 also can be maintained to deform Evenness, in order to reusing.

Furthermore, after bolt 2 feeding positions, multiple fins 13 of the present utility model can be answered by its elasticity being had Position, now, the locking thread 151 at fin 13 upper limb can be correspondingly embedded between two threads 21 of bolt 2, and this locking thread 151 Facing can form face with the facing of two threads 21 of bolt 2 and contact, whereby, locking thread 151 and the spiral shell of bolt 2 can be improved Frictional resistance between tooth 21, with effectively reach nut 1, bolt 2 and object sealed after will not by the external force such as vibrations be affected generation pine The situation such as de-, to reach good anti-loose effect.

Separately seeing also shown in Fig. 3, Fig. 4, for another embodiment of nut 1 of the present utility model, this utility model can Connect in nut body 11 bottom further and have a flanged housing 17, and make this flanged housing 17 external diameter be more than nut body 11 external diameter, And make the screw 12 of nut body 11 and thread 15 thereof extend through to this flanged housing 17, in this, when assembling use, make this reality It is resisted against on object with its flanged housing 17 bottom surface of novel nut 1, the bigger locking area being had by this flanged housing 17, After increase nut 1 is sealed with bolt 2, the steadiness being packed on object, to reach to improve nut 1 of the present utility model further Anti-loose effect.

Aforesaid embodiment or accompanying drawing non-limiting nut structure embodiment of the present utility model, spiral shell of the present utility model Cap 1 can coordinate a night bolt to assemble in the lump, after nut 1 and bolt 2 interlocking position, night bolt is arranged in bolt 2 Preset in the groove 14 of pin-and-hole and nut 1, make night bolt radially support pull nut 1 and bolt 2, to prevent nut 1 because of vibrations etc. And rotate, according to this, further to promote the anti-loose property of nut 1 of the present utility model.

From said structure and embodiment, this utility model has the advantage that

Nut structure the most of the present utility model is to be provided with multiple fin in nut body upper end, and makes multiple fin upper limb Thread at inwall, towards centroclinal projection, forms locking thread, whereby, when the group that bolt and nut of the present utility model is spirally connected During conjunction, at this locking thread, form preset torque can produce resistance, disturb and mate effect nut being assembled formation with bolt Really, produce resistance by this preset torque, because of external force impacts such as vibrations after can effectively preventing nut from closing with bolt lock tight knot Get loose, accordingly, reach the most anti-loose effect.

Nut structure the most of the present utility model is the fin being provided with annular arrangement in nut body upper end, and in this fin It is convexly equipped with locking thread at wall upper limb, whereby, when bolt end is by locking thread, fin can be made slightly to strut, so that spiral shell The thread of bolt, when by locking thread, reduces both deflections, according to this, improves bolt and nut reusability.

Nut structure the most of the present utility model makes multiple fin be 360 degree of annular arrangements, in this, when bolt is by multiple convex During the locking thread of rib, it can be ensured that the preset torque of locking thread produce resistance stable and average act on bolt, so that spiral shell Will not glance off when bolt-lock enters nut, and improve nut and the smooth and easy convenience of bolt interlocking, another bolt is by locking thread slightly During Light deformation, its thread also can be maintained to deform evenness, in order to reusing.

Nut structure the most of the present utility model is to make the locking thread at multiple fin upper limb after interlocking positions, and can embed Between two threads of bolt, and form face with the facing of the thread of bolt and contact, according to this, rub between locking thread and bolt to improve Resistance, reaches the most anti-loose effect.

Nut structure the most of the present utility model is to be formed with ditch between multiple fins that nut body upper end arranges in the form of a ring Groove, whereby, can coordinate night bolt to assemble, after nut positions with bolt interlocking, night bolt is arranged in spiral shell In the pin-and-hole of bolt and the groove of nut, so that night bolt radially supports pull nut and bolt, further improve nut anti-loose Effect.

Nut structure the most of the present utility model is to connect further in nut body bottom to have a flanged housing, according to this, utilizes The bigger locking area that flanged housing is had, when flanged housing bottom surface is resisted against object, can increase nut and be packed in object Steadiness, and further reach improve nut anti-loose effect.

The foregoing is only the schematic detailed description of the invention of this utility model, be not limited to model of the present utility model Enclose.Any those skilled in the art, equivalent done on the premise of without departing from design of the present utility model and principle becomes Change and amendment, the scope of this utility model protection all should be belonged to.And it should be noted that each ingredient of the present utility model Being not limited in above-mentioned overall applicability, each technical characteristic described in description of the present utility model can select according to actual needs Selecting an independent employing or select the multinomial use that combines, therefore, this utility model covers real with this case in the nature of things With novel point relevant other combination and specifically apply.

Claims (2)

1. a nut structure, it is characterised in that described nut structure is provided with a nut body, and becomes in these nut body central authorities Type has a screw, and is provided with the multiple fins around this screw in the upper end of this nut body, and in shape between fin described in two Becoming to have groove, the thread of the screw of this nut body extends to the inwall of multiple described fin, and definition one is perpendicular through this spiral shell again The central axis at center, hole, and the upper limb of multiple described fin inside contracts and forms the conical section that tilts towards this central axis, Duo Gesuo State the inwall of fin to relatively tilting projection towards this central axis by the thread at conical section, and form locking thread.

2. nut structure as claimed in claim 1, it is characterised in that this nut body connect in its bottom further have one convex Edge seat, the external diameter of this flanged housing is more than the external diameter of this nut body, and the screw of this nut body and thread extend through to this Flanged housing.