CN201246388Y

CN201246388Y - Integral dual anti-loose nut and head locking type and tail locking type anti-loose nuts

Info

Publication number: CN201246388Y
Application number: CNU200820130978XU
Authority: CN
Inventors: 王焕土
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-07-25
Filing date: 2008-07-25
Publication date: 2009-05-27
Anticipated expiration: 2018-07-25

Abstract

The utility model provides three locknuts with correlated structural functions, which are a body tail lock type locknut (10), a body head lock type locknut (20) and a body type dual locknut (30) respectively, wherein, the anti loose functions of the locknuts are all realized by a lock blade which is processed on a nut body; the lock blade is an elastic blade; the locknut (10) is provided with a self-locking section (2) with screw threads, a plurality of gaps which are formed on the self-locking section in approximately the axial direction divide the self-locking section into a plurality of incurved lock blades, and the lock blades clamp a screw rod tail end the clamping force to achieve the anti-looseness purpose; the locknut (20) is provided with a conic self-locking section (3), a plurality of gaps which are formed on the self-locking section in approximately the axial direction divide the self-locking section into a plurality of incurved or bandy lock blades, and when in use, the lock blades are screwed into the bolt rod firstly, and then the lock blades utilize the double squeezing friction force of the bell mouth of a workpiece to be locked and the bolt rod to achieve the anti-looseness purpose; and the self-locking sections which are arranged at the two axial ends of locknut (30) are provided with the double anti-looseness functions of the self-locking section (2) and the self-locking section (3).

Description

A dual lock nut of integral type and a locking-type and tail locking-type lock nut

Technical field

The utility model belongs to machanical fastener, relates to the lock nut field, particularly relates to a dual lock nut of integral type and a locking-type and tail locking-type lock nut.

Background technique

The kind of lock nut is a lot of at present, can not enumerate one by one; But according to known to, existing lock nut all is knockdown structure basically, as double nuts structure or on nut body the lock nut of mounting spring sheet and colloid and so on, the lock nut of double nuts structure, because it is be split type, just cumbersome in use, fastening effect is also undesirable, because two nut mutual extrusion with regard to loss to the due fastening force of workpiece, under the nut of same thickness and identical fastening force situation to workpiece, double nut is stripped thread easily just; The anti-loosing effect of mounting spring sheet lock nut is also undesirable, because spring sheet can only block a pitch of thread of screw rod, its frictional force does not reach anti-loosing effect preferably, and spring sheet is very big to the screw flight damage, as long as just obviously descend with anti-loosing effect after the second time, so that lose anti-loosing effect at last; For the lock nut using scope of colloid and so on very little, mainly be non-refractory, colloid is apt to deteriorate and damaged by the silk tooth of screw rod easily; Its locking part of above-mentioned lock nut all is that grafting is installed on the nut body, make the cumbersome complexity of its producing process, cost of production improves, and when using this lock nut because be the reason of composite structure, have unavoidably the assembly displacement, loosening, rust is dead, come off etc., and phenomenon occurs, above-mentioned for this reason lock nut can't relievedly use, when using this kind lock nut, also to after checking, checking, could use, so just increased the work working strength.

Summary of the invention

It is good that the purpose of this utility model provides serial anti-loosing effect, and cost of production is low, and nut and locking locking function are the dual lock nut of long-lived integral type and a locking-type and the tail locking-type lock nut of tight body.

A dual lock nut of the utility model integral type and a locking-type and tail locking-type lock nut, by a nut body is the lock nut that integral material processes, serial nut of the present utility model mainly is made of nut body section and self-locking section, the nut body section is chimeric operation of instrument and fastening functional section, the self-locking section is locking fastening functional section, nut body section and self-locking section are one, the self-locking section is good with taper shape, the self-locking section has two kinds of forms, be axial type self-locking section and spiral self-locking section, telescopic chute more than at least one is arranged on the periphery of conical self-locking section, telescopic chute is with the intersegmental fan-shaped locking plates of some parts that are divided into of conical self-locking, resiliently deformable by locking plate plays direct locking effect, to the bell-mouthed expansive force of fastened object or to the effect of holding of screw rod, and reach the purpose of locking self-locking by locking plate.The nut body section is a hexagon, also can be other shape, and serial nut of the present utility model includes the essentially identical three kinds of lock nuts of feature; It is the dual lock nut of integral type, an one locking-type lock nut and one tail locking-type lock nut, and the dual lock nut of integral type just has two kinds of anti-loose structures of an one locking-type lock nut and one tail locking-type lock nut, and promptly the dual lock nut of integral type is made up of the self-locking section of a locking-type and tail locking-type lock nut and body section functional structure wherein.So, at first at first set forth an one tail locking-type lock nut and an one locking-type lock nut; Then just can understand the dual lock nut of integral type.

One tail locking-type lock nut: comprise nut body section and tail locking-type self-locking section two parts, the locking plate root of the end face of body section and self-locking section links to each other, body section and self-locking section are one, the self-locking section mainly is made of locking plate, this nut is to screw in screw rod earlier by body section, nut body section and self-locking section axially have the tapped hole of always colluding pitch, the end face of nut body promptly is plane shape with the face that fastened object contacts, also can further be arranged to flanged surface, it is conical that tail locking-type self-locking section is, and also can be other shape; Also can further add a cover cap in self-locking section outside, the cover cap is installed on the protrusion body of locking plate root, to reach the antirust purpose attractive in appearance of waterproof, the telescopic chute of tail locking-type self-locking Duan Shangyou more than at least 1, telescopic chute has two types, be axial type telescopic chute and spiral oblique telescopic chute, telescopic chute separates each locking plate, the line of rabbet joint is good with 3 to 6 respectively, the shape of telescopic chute can change, groove meets size not to be in contact with one another with each locking plate, the telescopic chute of two kind shapes has been brought up the locking plate of two kind shapes, i.e. entad axial type locking plate and entad spiral or locking plate, locking locking function just is locking plate, the locking plate locking functions is the bullet of the locking plate shape of changing, for this reason, the axial type locking plate is good with slender shape as far as possible, can increase the resiliently deformable amplitude and the tough flexibility of locking plate like this, the purpose of spiral locking plate is exactly in order to shorten the axial height of nut, and the resiliently deformable amplitude that can keep and reach locking plate designs, the far-end of each locking plate of self-locking section is to the bending of tapped hole central direction, form the radial inflow locking plate, the tapped hole diameter of the self-locking section of radial inflow locking plate is less than the tapped hole diameter of nut body section, so when using this nut, earlier the nut body section is screwed in screw rod, then the torsion by instrument makes screw rod be screwed into the less conical self-locking section of tapped hole diameter by force, utilize screw rod that the radial inflow locking plate of self-locking section is opened, rebounding force by locking plate hugs frictional force to what screw rod produced, and puts into practice the purpose of the locking self-locking of tail locking-type lock nut.

An one locking-type lock nut: comprise a nut body section and a locking-type self-locking section two partly, the locking plate root of the end face of body section and self-locking section links to each other, body section and self-locking section are one, the self-locking section mainly is made of locking plate, elastic force by locking plate plays locking effect, it is conical that the self-locking section is, coned face is a disk, also can be arranged to flanged surface, this nut is to screw in screw rod earlier by the self-locking section earlier, nut body section and self-locking section axially have together, and pitch connects tapped hole, the self-locking section has the telescopic chute more than at least 1, telescopic chute is good with 3 to 6, telescopic chute has two types to be axial type telescopic chute and the spiral oblique telescopic chute that above-mentioned tail locking-type nut is mentioned, telescopic chute separates each locking plate, line of rabbet joint size is not in contact with one another with each locking plate, because the resiliently deformable amplitude of locking plate decision anti-loosing effect, for resiliently deformable amplitude and the tough flexibility that increases locking plate, can deepen the telescopic chute degree of depth, also can put in order the circle groove at locking plate root or following offering, and utilize spiral oblique telescopic chute to increase the resiliently deformable amplitude of locking plate, the magnitude of inclination of spiral oblique telescopic chute is unsuitable excessive, amplitude is crossed and is greatly made spiral locking plate too soft, when the fastening operation of brute force, the horn mouth of fastened object can to spiral locking plate produce powerful axially and pressure radially, and make locking plate damage distortion easily, the locking plate of this nut self-locking section has four kinds of forms promptly:

1, centrifugal locking plate: locking plate is an opening shape, and the tapped hole at locking plate place is slightly larger than the tapped hole of body section.

2, radial inflow locking plate: locking plate has the wide oral area of a threaded inclination to the interior threaded hole bending at the locking plate mouth.

3, reverse the straight formula locking plate of shape: the locking plate far-end slightly reverses to the left or to the right, makes itself and locking plate root that certain angle be arranged, and at the locking plate mouth the wide oral area of one threaded inclination is arranged.

4, partition formula locking plate: locking plate is the inside and outwardly-bent of partition, and the locking plate mouth has the wide oral area of a threaded inclination.

Above-mentioned four kinds of locking plates are good with centrifugal locking plate, centrifugal locking plate is the tapped hole that the tapped hole of self-locking section is slightly larger than body section, because a locking-type lock nut is when fastening, be to allow locking plate screw in screw rod earlier, opening shape locking plate is with regard to easier and screw rod bonding operation like this, this nut is when installing fastening operation, earlier the self-locking section is screwed into screw rod earlier, when the horn mouth of self-locking section and fastened object contacts, twisting in nut is past more, the locking plate of taper self-locking section just can produce big more dual rebounding force with screw rod to the horn mouth of fastener more, utilize locking plate the rebounding force generation huge frictional force and put into practice the purpose of the locking self-locking of this nut.

The dual lock nut of integral type: comprise a locking-type self-locking section and nut body section and tail locking-type self-locking section, the epimere head is made up of the self-locking segment structure of (identical) above-mentioned tail locking-type lock nut nut body section, following segment trailer self-locking segment structure, the stage casing of (identical) above-mentioned locking-type lock nut.Elaboration by an above-mentioned one tail locking-type and an one locking-type lock nut, roughly just understand for the dual lock nut of integral type, the dual lock nut of integral type is exactly that the locking plate root of going up paragraph header locking-type self-locking section links to each other with one of them end face of stage casing nut body section, another end face of body section links to each other with the locking plate root of following segment trailer self-locking section, the orderly combination of 3 sections functional structure is the dual lock nut of integral type, be dual locking functions and the structure that this nut has an one locking-type lock nut and one tail locking-type lock nut, the dual lock nut of integral type, be to screw in screw rod earlier when installation is fastening by the conical self-locking section of head, when the conical locking plate of self-locking section engages with the horn mouth of fastened object, horn mouth will produce radial and axial pressure to locking plate, locking plate is put in order to be attached on the screw rod, utilize most the bounce-back frictional force of locking plate and realize the locking self-locking of head self-locking section locking plate, pass through twisting simultaneously to the nut body section, screw rod also is screwed into this nut afterbody self-locking section simultaneously, because the formed tapped hole of radial inflow locking plate of afterbody self-locking section is less, when screw rod is made a forcible entry into the self-locking section, promptly put into practice the purpose of the locking self-locking of afterbody self-locking section locking plate by the hugging power of the elastic force of locking plate generation.The dual lock nut of integral type is that head and afterbody can both be realized locking self-locking.

The utility model is more with better function than original loose-proof self-lock nut, and structure is simpler, and loading and unloading and use that can be repeatedly, thereby increases economic and social benefit.

Below in conjunction with accompanying drawing and example, the utility model is further described.

Description of drawings:

Fig. 1 one tail locking-type lock nut schematic perspective view (F) is represented axial type self-locking section form view, (F ') the spiral self-locking section form view of representative.

Fig. 2 one tail locking-type lock nut is looked squarely schematic representation, (F) represents axial type self-locking section form view, (F ') the spiral self-locking section form view of representative.

Fig. 3 one tail locking-type lock nut internal organs is looked schematic representation, (F) represents axial type self-locking section form view, (F ') the spiral self-locking section form view of representative.

The cross-sectional view of a Fig. 4 one tail locking-type and one locking-type lock nut elevational schematic view and the dual lock nut body section of integral type.

Fig. 5 one tail locking-type lock nut A-A cross-sectional schematic.

Fig. 6 one locking-type lock nut schematic perspective view (F) is represented axial type self-locking section form view, (F ') the spiral self-locking section form view of representative.

Fig. 7 one locking-type lock nut is looked squarely schematic representation, (F) represents axial type self-locking section form view, (F ') the spiral self-locking section form view of representative.

Fig. 8 one locking-type lock nut internal organs is looked schematic representation, (F) represents axial type self-locking section form view, (F ') the spiral self-locking section form view of representative.

Fig. 9 one locking-type lock nut B-B cross-sectional schematic

The dual lock nut of Figure 10 integral type is looked squarely schematic representation, (F) represents axial type self-locking section form view, (F ') the spiral self-locking section form view of representative.

The dual lock nut user mode of Figure 11 integral type schematic representation

Several schematic variation diagram of Figure 12 telescopic chute

Indicate among the figure:

10 one tail locking-type lock nuts 11 are the axial type locking plate entad

A 20 one locking-type lock nut 11 ' entad spiral locking plate

The dual lock nut 12 axial type telescopic chutes of 30 integral types

1 nut body section 12 ' spiral oblique telescopic chute

2 tail locking-type self-locking sections, 13 locking plate root or joining portion

3 locking-type self-locking section 14 locking plate far-ends or self-locking section far-end

4 fastened object 15 locking plate outer surfaces or self-locking section outer surfaces

5 fastened object horn mouth 16 locking plate root thickness

6 screw rods, 17 locking plate distal face thickness

7 screw rod conical heads, 18 telescopic chute internal orifice hypotenuses

8 with pitch perforation tapped hole 19 telescopic chute internal orifice straight flanges

9 nut body end faces, 21 axial type locking plates

The parallel shape telescopic chute 21 of A ' spiral locking plate

BU font telescopic chute 22 telescopic chute deepening sections

CV font telescopic chute 23 locking plate root notches

The D wide oral area of circular telescopic chute 24 locking-type lock nuts locking plate that drips

The center line tilt angle of E arc tilt telescopic groove 25 spiral oblique telescopic chutes

O self-locking section angle of strike O ' horn mouth angle of strike

Embodiment

As Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Figure 5, be respectively the telescopic chute of two kinds of self-locking section forms of the axial type self-locking section (F) of one tail locking-type lock nut 10 of the present utility model and spiral self-locking section (F ') and locking plate form solid, look squarely, internal organs is looked, look up and cross-sectional schematic, one tail locking-type lock nut 10 of the present utility model, comprise nut body section 1 and tail locking-type self-locking section 2, one of them end face of body section links to each other with the locking plate root 13 of self-locking section; 13 places, joining portion can have body section to protrude the shoulder of conical self-locking section; Body section 1 and self-locking section 2 axially have together, and pitch connects tapped hole 8, self-locking section 2 has two kinds of forms, be axial type self-locking section (F) and spiral self-locking section (F '), the purpose that designs two kinds of form self-locking sections is, under the situation of self-locking section 2 long enoughs (height) degree, be applicable to axial type self-locking section (F), then appropriateness is used for spiral self-locking section (F ') when the limited length of self-locking section 2, it is good that self-locking section 2 has suitable tapering, the self-locking section is mainly by entad axial type locking plate 11 or entad spiral locking plate 11 ' constitute, anti-loosing effect is decided by locking plate, telescopic chute more than at least 1 is arranged on self-locking section 2, telescopic chute plays a part to separate locking plate and makes the locking plate resiliently deformable, telescopic chute is divided into the axial type telescopic chute 12 of (F) shape, 12 ' two types of the spiral oblique telescopic chutes of (F ') shape, the axial type telescopic chute is to offer with the axial symmetry of tapped hole, oblique telescopic chute is and offering to the left or to the right of several angle is axially arranged, offering direction will see clockwise clamping nut and counter-clockwise clamping nut and design, the spiral oblique telescopic chute of this accompanying drawing all is by clockwise clamping nut, otherwise the telescopic chute of inhour clamping nut gets final product,

telescopic chute

12 or 12 ' be good with 3-6 respectively, wherein spiral oblique telescopic chute 12 ' purpose of design, be on a limited locking-type self-locking section 3, increase length and the resiliently deformable amplitude and the tough flexibility of locking plate, thereby better reach the purpose of nut anti-looseness self-locking, because the elasticity of locking plate is good more, locking effect is just good more.Oblique telescopic chute 12 ' center line tilt angle 25 with 20 to 60 degree for good.The

telescopic chute

12 and 12 of serial lock nut of the present utility model ' can change its shape several variation class of A, B, C, D shape as shown in figure 12 as required, telescopic chute 12 ' can also change over arc tilt telescopic groove E wherein, telescopic chute can also have other to change as young greatly down dual U-shaped suitable for reading and UV shape etc.;

Telescopic chute

12 and 12 ' inner thread partly can straightsided shape 19, also can hypotenuse shape 18, the purpose that increases hypotenuse shape is, if the strong screw rod of crossing of the hardness of nut 10, flexible 19 of straight flange thread will abrade screw rod silk tooth so, and hypotenuse shape 18 just can not be taken place or be much better,

telescopic chute

12 or 12 ' self-locking section 2 is partitioned into some parts, fan-shaped segmental arc around tapped hole 8, this fan-shaped section for entad axial type locking plate 11 or entad spiral locking plate 11 ', on the every same self-locking section of serial lock nut of the present utility model, a kind of telescopic chute and locking plate of form all can only be arranged, i.e. (F) or (F '); Locking plate root thickness 16 is greater than locking plate distal thickness 17 for good, locking plate far-end 14 will have certain thickness, thickness portion 17 is tangent plane shape, it also can be convexity, locking plate outer surface 15 is a lineal shape, it also can be concave arc shape, it also can be convex, locking plate 11 or 11 ' all to interior threaded hole 8 bendings, the tapped hole diameter of self-locking section 2 is roughly dwindled to locking plate far-end 14 gradually from locking plate root 13, and make the tapped hole diameter of the tapped hole diameter of self-locking section 2 less than body section 1, when fastening nut 10 is installed, end face 9 with the nut body section screws in screw rod earlier, utilize the twisting of instrument to body section, then screw rod enters self-locking section 2 because the tapped hole diameter of self-locking section is less, by locking plate 11 or 11 ' elastic reaction will produce the purpose that huge frictional force that the powerful power of hugging produces reaches the locking self-locking of one tail locking-type lock nut to screw rod.

Consult Fig. 6, Fig. 7, Fig. 8, Fig. 4, shown in Figure 9: be respectively the telescopic chute of two kinds of self-locking section forms of the axial type self-locking section (F) of an one of the present utility model locking-type lock nut 20 and spiral self-locking section (F ') and the solid of locking plate form, look squarely, internal organs is looked, look up and cross-sectional schematic; An one of the present utility model locking-type lock nut 20, comprise a nut body section 1 and a locking-type self-locking section 3, one of them end face of body section links to each other with the locking plate root 13 of self-locking section, body section 1 and self-locking section 3 axially have together, and pitch connects tapped hole 8, self-locking section 3 has two kinds of forms, be axial type self-locking section (F) and spiral self-locking section (F '), the purpose that designs two kinds of form self-locking sections is, under the situation of self-locking section 3 long enoughs (height) degree, be applicable to axial type self-locking section F, when the limited length of self-locking section 3, then be applicable to spiral self-locking section F ', it is conical that self-locking section 3 is, the self-locking section is mainly by locking plate 21 or 21 ' constitute, locking plate determines locking effect, locking plate is a spring sheet, the strong more anti-loosing effect of the elasticity of locking plate is just good more, the taper locking plate outer surface 15 of self-locking section is a disk, also can be arranged to flanged surface, telescopic chute more than at least one is arranged on self-locking section 3, telescopic chute is divided into two kinds of forms, promptly the spiral oblique telescopic chute 12 of the axial type telescopic chute 12 of (F) shape and (F ') shape ',

telescopic chute

12 or 12 ' be good with 3-6 respectively, the axial type telescopic chute is to offer with the axial symmetry of tapped hole, oblique telescopic chute is and offering to the left or to the right of several angle is axially arranged, offering direction will see clockwise clamping nut and counter-clockwise clamping nut and design, the oblique telescopic chute of this accompanying drawing all is by clockwise clamping nut, otherwise the inhour clamping nut gets final product, telescopic chute can be deepened the degree of depth as required, it is telescopic chute deepening section 22, to increase the resiliently deformable amplitude and the tough flexibility of locking plate, the another kind of method that increases resiliently deformable is to offer a whole circle groove 23 on locking plate root 13 or the following body section 1 of root, groove can be the U font, it also can be other shape, the telescopic chute 12 of spiral self-locking section (F ') ' be exactly for increase locking plate 21 ' resiliently deformable amplitude and tough flexible design, telescopic chute is partitioned into some fan-shaped segmental arcs around tapped hole 8 to conical self-locking section 3, this fan-shaped segmental arc is locking plate, locking plate also is divided into two kinds of forms accordingly, promptly the spiral locking plate 21 of the axial type locking plate 21 of (F) shape and (F ') shape ', under identical self-locking section class shape, the resiliently deformable amplitude of spiral locking plate and tough flexibility are just better, the spiral locking plate magnitude of inclination of locking-type nut is unsuitable excessive, crossing conference makes locking plate 21 ' too soft, the center line tilt angle 25 that is spiral oblique telescopic chute can not be too little, and tilt angle 25 is good with 30 to 60 degree; Locking plate root thickness 16 is greater than locking plate distal thickness 17, locking plate far-end 14 will have certain thickness, locking plate distal face thickness partly is tangent plane shape or convex, locking plate root 13 is a flush with the joining portion of nut body section 1, locking plate root 13 also can be designed to the whole outward circle stretch flange formability portion greater than body section, and 13 places, joining portion are the shoulder that protrudes of body section also.

Telescopic chute

12 and 12 ' inner edge have the part and the edge of thread, also can be that former state just as telescopic chute is a straightsided shape 19, also can process a hypotenuse 18, the purpose of hypotenuse 18 is, when nut 20 and the fastening operation of screw rod, be not easy to damage screw rod silk tooth, the locking plate of 44 kinds of forms of locking plate 21 or 21 ' can be designed to promptly:

1, centrifugal locking plate, promptly locking plate 21 and 21 ' far-end 14 be opening shape, make the tapped hole of self-locking section be slightly larger than the tapped hole of nut body section.

2, radial inflow locking plate, it is locking plate 21 and 21 ' to the interior threaded hole bending, this locking plate form will design the wide oral area 24 of threaded inclination or design threaded conical head 7 in screw tip in the inboard of the far-end 14 of locking plate, so utilize conical head that the wide oral area of locking plate engages screw rod bonding operation smoothly.

3, reverse the straight formula locking plate of shape, promptly locking plate 21 or 21 ' the fan-shaped segmental arcs of distal face thickness portion 17 slightly reverse to the left or to the right, make itself and locking plate root thickness 16 fan-shaped segmental arcs that certain angle be arranged.

4, partition formula locking plate, promptly locking plate 21 or 21 ' partition is inside and outwardly-bent, and partition formula locking plate is good with even number, and partition formula locking plate also can be at the threaded wide oral area 24 of the inboard design of the far-end of locking plate; Above-mentioned 4 kinds of locking plate forms are more suitable with centrifugal locking plate, be that locking plate is outwardly-bent, as shown in Figure 9, the tapped hole slightly larger in diameter at locking plate far-end 14 places that makes self-locking section 3 is in the tapped hole diameter of locking plate root 13 and body section 1, so just easier joint screws in screw rod when fastening operation, the tapering of conical self-locking section is that self-locking section angle of strike should be less than or equal to fastener horn mouth angle of strike, be that O≤O ' is good, horn mouth will produce bigger pressure to locking plate far-end 14 when fastening operation like this.Locking-type lock nut is engaging with screw rod when fastening, be earlier self-locking section 3 to be screwed in screw rod earlier, when this nut locking plate 21 or 21 ' the outer surface 15 and the horn mouth 5 of fastened object when contacting, by instrument to the effect of body section 1 this nut is powerfully screwed in, horn mouth 5 forces locking plate 21 or 21 ' hold tightly to screw rod 6 compressings, make locking plate and horn mouth and and screw rod between form the powerful frictional force that the bounce-back expansive force of mutual extrusion and locking plate self is produced, and realize the purpose of the locking self-locking of this nut.

Then consult Fig. 4, Figure 10, Figure 11 is body section cross-sectional view and the plan view and the user mode figure of the dual lock nut 30 of integral type of the present utility model, wherein (F) among Figure 10 represents axial type self-locking section aspect graph, (F ') represents spiral self-locking section aspect graph, as shown in the figure: this nut 30 comprise a locking-type self-locking section 3 and nut body section 1 and tail locking-type self-locking section 2 and together pitch connect tapped hole 8, the orderly combination of three-stage structure constitutes, the locking plate root 13 of locking-type self-locking section 3 links to each other with one of them end face of body section 1, joining portion 13 is neat face, it also can be the shoulder that body section is protruded self-locking section or the recessed self-locking section of body section, another end face of body section links to each other with the locking plate root 13 of tail locking-type self-locking section, 13 places, joining portion can have body section to protrude the shoulder of self-locking section, and the central shaft that tapped hole 8 runs through self-locking section 3 and body section 1 and tail locking-type self-locking section 2 makes progress; The epimere head of this nut 30 is exactly the self-locking section 3 of an one locking-type lock nut 20 in fact, the stage casing is exactly the wherein nut body section 1 of nut 20 or nut 10, following segment trailer is the self-locking section 2 of one tail locking-type lock nut 10, epimere, stage casing, three sections orderly joints of function of hypomere are this nut 30, for self-locking section 3 and self-locking section 2 and body section 1 in above-mentioned locking-type lock nut 20 and tail locking-type lock nut 10 all to be illustrated, for this does not just repeat most the locking plate of self-locking section 2 and self-locking section 3 and the single fundamental function of body section.This nut 30 when mounted, self-locking section 3 is screwed in screw rod 6 earlier, by the twisting to nut body section 1 make locking plate 21 or 21 ' conical outer surface 15 contact with the horn mouth 5 of fastened object, utilize the compressing of the outer surface 15 of 5 pairs of conical locking plates of horn mouth to make locking plate 21 or 21 ' tilt to hug to screw rod 6, locking plate is by horn mouth 5 and the mutual extrusion of screw rod 6 and the powerful frictional force that self rebounding force produced of locking plate, and put into practice the locking self-locking of the head self-locking section 3 of this nut 30, the screw-in of while this nut 30, screw rod 6 also enters into self-locking section 2 simultaneously, since the

locking plate

11 or 11 of tail locking-type self-locking section 2 ' be aduncate, so the tapped hole of self-locking section 2 just is smaller than the tapped hole of body section 1, after screw rod 6 enters self-locking section 2 promptly by locking plate 11 or 11 ' fill the span of a man's arms and the powerful frictional force that produces, and put into practice the locking self-locking purpose of this nut 30 afterbody self-locking sections 2, the locking functions that just has head self-locking section 3 for this this nut 30, with the locking functions of afterbody self-locking section 2 be the dual lock nut of integral type of one.

A dual lock nut of the utility model integral type and a locking-type and tail locking-type lock nut are locking female spiral shell of three kinds of types of service, and the locking functions of its each nut is similar substantially with the structure characteristic form, but each locking female spiral shell all has specific effect.Tail locking-type lock nut 10 just can substitute general nut and use, as long as the length of screw rod can reach afterbody self-locking section, just can put into practice locking self-locking; Locking-type lock nut 20 is for limited spiro rod length and confined space design, promptly finish the back nut end face and the screw rod end face is smooth substantially in fastening operation, this nut will use by means of the horn mouth of workpiece in use, this nut is used for the wheel rim of heavy-duty car and the locking self-locking of motor one class, a locking-type lock nut of radial inflow locking plate also can be used as tail locking-type lock nut and uses; And the dual lock nut 30 of integral type has just comprised 20 2 kinds of locking functions of nut 10 and nut, so this nut is specially adapted to highly to use on the parts of vibration; Three types of lock nuts of the present utility model, the fastening function of every kind of nut and locking locking function all are integral structure, surpass known knockdown lock nut working life this working life that just makes serial lock nut of the present utility model greatly, material of the present utility model is good with the stronger metallic material of band elasticity.

Claims

1, a kind of one tail locking-type lock nut (10) comprises nut body section (1) and conical self-locking section (2), and self-locking section (2) has following two kinds of forms: axial type self-locking section (F) and spiral self-locking section (F '); Axial type self-locking section (F) wherein: comprise the telescopic chute (12) that axial symmetry is offered more than at least 1, and the entad axial type locking plate (11) that is separated by telescopic chute (12) and quantity equates; Wherein above-mentioned spiral self-locking section (F '): comprise at least 1 spiral oblique telescopic chute of offering to tilt (12 '), and the entad spiral locking plate (11 ') that is separated by telescopic chute (12 ') and quantity equates; It is characterized in that: above-mentioned body section (1) has 4 dihedral formulas or 6 dihedrals or 8 dihedral formulas etc., the shoulder that a body section is protruded is located at the joining portion (13) of body section (1) and self-locking section (2), place, joining portion (13) 〉=self-locking section far-end (14) of self-locking section (2), pitch connects tapped hole (8) to the central shaft of body section (1) and self-locking section (2) to having together, and the diameter of tapped hole (8) is roughly dwindled to the other end of self-locking section by the joining portion of nut body section and self-locking section.

2, one tail locking-type lock nut according to claim 1 (10) is characterized in that, the outer surface (15) of conical self-locking section (2) has following form; Linearly form and concave arc form and convex arc form.

3, one tail locking-type lock nut according to claim 1 (10), it is characterized in that, spiral oblique telescopic chute (12 ') is sayed from visible surface, telescopic chute (12 ') has the two kinds of forms that are tilted to the left and are tilted to the right, and the center line tilt angle (25) of telescopic chute (12 ') is 10 to 90 degree.

4, one tail locking-type lock nut according to claim 1 (10) is characterized in that, the locking plate root thickness (16) of self-locking section 〉=locking plate distal face thickness (17).

5, one tail locking-type lock nut according to claim 1 (10) is characterized in that, above-mentioned axial type telescopic chute (12) and spiral oblique telescopic chute (12 ') have following change shape; Be parallel shape telescopic chute (A), U font telescopic chute (B), V font telescopic chute (C), circular telescopic chute (D) and arc tilt telescopic groove (E) etc. drip.

6, one tail locking-type lock nut according to claim 1 (10), it is characterized in that, the edge, inner screw section of above-mentioned axial type telescopic chute (12) and spiral oblique telescopic chute (12 '), has following variation, i.e. telescopic chute internal orifice hypotenuse (18) and telescopic chute internal orifice straight flange (19).

7, one tail locking-type lock nut according to claim 1 (10) is characterized in that, tail locking-type self-locking section (2) has the above arbitrary height of at least one pitch of thread.

8, one tail locking-type lock nut according to claim 1 (10) is characterized in that, the outside of above-mentioned tail locking-type self-locking section (2) can further add a cover cap, and cover cap peace is connected on the shoulder of place, joining portion body section protrusion.

9, a kind of one locking-type lock nut (20) comprises nut body section (1) and conical self-locking section (3); Self-locking section (3) has following two kinds of forms: axial type self-locking section (F) and spiral self-locking section (F '); Axial type self-locking section (F) wherein comprises the telescopic chute (12) that axial symmetry is offered more than at least 1, and the axial type locking plate (21) that is separated by telescopic chute (12) and quantity equates; Wherein above-mentioned spiral self-locking section (F '), comprise at least 1 spiral oblique telescopic chute of offering to tilt (12 '), and the spiral locking plate (21 ') that is separated by telescopic chute (12 ') and quantity equates, it is characterized in that: above-mentioned body section (1) has following form; 4 dihedrals, 6 dihedrals, 8 dihedrals etc.; The joining portion (13) of body section (1) and self-locking section (3) is located, and following form is arranged: self-locking section (3) is protruded body section (1) form and recessed body section (1) form of self-locking section (3) and self-locking section (3) and is the form of flushing with the surface of body section (1); Place, joining portion (13) 〉=self-locking section far-end (14) of self-locking section (3), pitch connects tapped hole (8) to the central shaft of body section (1) and self-locking section (3) to having together, and the diameter of tapped hole (8) is roughly dwindled to the other end of self-locking section by joining portion (13).

10, an one according to claim 9 locking-type lock nut (20) is characterized in that, the diameter that connects tapped hole (8) with pitch is roughly roomy to the other end of self-locking section by joining portion (13).

11, an one according to claim 9 locking-type lock nut (20) is characterized in that, the outer surface (15) of conical self-locking section (3) has following form: form linearly, and concave arc form and convex arc form.

12, an one according to claim 9 locking-type lock nut (20), it is characterized in that spiral oblique telescopic chute (12 ') is sayed from visible surface, telescopic chute (12 ') has the two kinds of forms that are tilted to the left and are tilted to the right, and the center line tilt angle (25) of telescopic chute is 20 to 90 degree.

13, an one according to claim 9 locking-type lock nut (20) is characterized in that, the locking plate root thickness (16) of self-locking section 〉=locking plate distal face thickness (17).

14, an one according to claim 9 locking-type lock nut (20), it is characterized in that, above-mentioned axial type telescopic chute (12) and spiral oblique telescopic chute (12 '), has following change shape, be parallel shape telescopic chute (A), U font telescopic chute (B), V font telescopic chute (C), the circular telescopic chute (D) that drips, and arc tilt telescopic groove (E) etc.

15, an one according to claim 9 locking-type lock nut (20), it is characterized in that, the edge, inner screw section of above-mentioned axial type telescopic chute (12) and spiral oblique telescopic chute (12 ') has following variation: i.e. telescopic chute internal orifice hypotenuse (18) and telescopic chute internal orifice straight flange (19).

16, an one according to claim 9 locking-type lock nut (20) is characterized in that, a locking-type self-locking section (3) has the above arbitrary height of at least one pitch of thread.

17, an one according to claim 9 locking-type lock nut (20) is characterized in that, the flank of thread of the locking plate far-end (14) of above-mentioned axial type locking plate (21) and spiral locking plate (21 ') has the wide oral area of threaded inclination (24).

18, an one according to claim 9 locking-type lock nut (20), it is characterized in that, the degree of depth of above-mentioned axial type telescopic chute (12) and twist-type telescopic groove (12 ') roughly from the joining portion (13) deepening to nut body section (1), be telescopic chute deepening section (22), to increase the flexibility of locking plate (21) and (21 ').

19, an one according to claim 9 locking-type lock nut (20), it is characterized in that, below the root of above-mentioned axial type locking plate (21) and spiral locking plate (21 '), set up a whole circle locking plate root notches (23), to increase the flexibility of locking plate (21) and (21 ').

20, an one according to claim 9 locking-type lock nut (20), it is characterized in that, axial type locking plate (21) and spiral locking plate (21 ') the fan-shaped segmental arc of distal face thickness portion and the fan-shaped segmental arc of its locking plate root, following version is arranged: locking plate far-end segmental arc and root section are parallel form and to the left handed twist form and reverse form to the right, and roughly windup-degree is 5 to 35 degree.

21, the dual lock nut of a kind of integral type (30), comprise paragraph header locking-type self-locking section (3) and stage casing nut body section (1) and hypomere tail locking-type self-locking section (2), it is characterized in that, pitch connects tapped hole (8) to the central shaft of above-mentioned epimere (3) and stage casing (1) and hypomere (2) to having together, on, in, hypomere is an integral body, wherein go up paragraph header locking-type self-locking section (3) and stage casing nut body section (1), be same as all features and the function of an one locking-type lock nut (20) of aforesaid right requirement 9 to 19, wherein hypomere tail locking-type self-locking section (2) is same as all features and the function of self-locking section of the one tail locking-type lock nut (10) of aforesaid right requirement 1 to 8.