CN2415196Y

CN2415196Y - Deadlock-free shockproof check nut

Info

Publication number: CN2415196Y
Application number: CN 98240874
Authority: CN
Inventors: 翁金端
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-09-25
Filing date: 1998-09-25
Publication date: 2001-01-17
Anticipated expiration: 2007-08-04

Abstract

The utility model relates to a deadlock-free, shockproof and anti-loosing screw cap. The structure of the screw cap comprises a cap body, an inner tooth socket and a screw rod. The utility model is characterized in that the inner part of the cap body is provided with a bolt slot hole and the other concentric circular tooth hole, the integration of the inner tooth socket forms a spiral spring-shaped form, each spring coil of the outer wall of the inner tooth socket is surrounded by axial bolt slot teeth, and the wall surface of the ring coil of an inner hole of the inner tooth socket is provided with inner teeth. The end wall of the inner tooth socket is penetrated and provided with screw holes corresponding to screw holes which are arranged in the cap body, and the screw rod can be penetrated and locked among the screw holes, so the inner tooth socket can be locked in the cap body.

Description

Anti-locking shock-proof check nut

The utility model provides a kind of anti-locking shock-proof check nut, particularly design a kind of outer tooth of spiral spring shape and spring that interior tooth is had of utilizing, enable the movable property that the chimeric back of collaborative axial bolt tooth and croze is had, and it is utilized to the lock matched ring border of bolt and nut, and then produce shock-absorbing (being antidetonation), anti-locking and spiral shell group effect such as anti-fracture.

By the locking technology of existing bolt (or claiming screw) and nut, mainly be on the mat key and the cap body in be formed with outer tooth and in tooth, and then being meshed to revolve and leading between its inside and outside thread of mat locked or the helical pitch active force so that form the axial clamp of phase packing.Yet no matter the body of its thread is to belong to v thread, square thread or the trapezoidal thread of knowing etc., it is tool one common point all, promptly be the friction thrust that mat is meshed between tooth to be produced, the rotation torsion that makes it to revolve lock bolt or nut converts the thrust of axial locking to, therefore can protect tight spiral shell group between lock dress object under normal conditions in conjunction with effect.But know, adorn in the occasion of object at many spiral shell group locks that utilizes, such as the spiral shell group between vehicle transmission reel and wheel frame, spiral shell group between the aircraft casing, and the high shake of tool tunnel borehole machine frequently, bore oily machine, pile driver, engine, internal-combustion engine, spiral shell group between mechanical transmissioning piece such as air compressor and oil hydraulic press, it all is the function influence that must bear very big shaking force, and its place of being spirally connected is increased or meet with to embarrassed shapes such as debentition or broken screws, yet, for overcoming this puzzlement, up to now there is no better bolt assembly can be for utilizing, unless, otherwise difficulty is reached desirable anti seismic efficiency with the dead permanent combination of weldering between adversary's part of institute's desire assembling.

Based on this problem points, and inquire into its reason, when being the engagement assembly of because all screw threads (or claiming thread), between each between cog counterpart of Qi Yafeng and tooth paddy, all must possessing one and become flexible nargin, establish with revolving of convenient spiral shell group.But know that this nargin easily makes can't paste fully between the intermeshing flank of tooth and touch, when making its friction thrust that is accumulating the brisance power that the solid torsion of the anti-spiral shell that gets loose of each flank of tooth friction gained can't arrive greater than external world's conduction, the phenomenon that gets loose of the solid torsion of spiral shell promptly can take place oppositely to offset.Simultaneously also because of all having rigidity between the flank of tooth that respectively is meshed, thus arrive conducted by locked object spare not specific during to shaking force, very easily between the interlocking face, produce shearing, force screw to suffer this shearing and suffer from shaking disconnected locked embarrassed look.

At above model utility background, for can thoroughly solve above-mentioned heat know bolt and nut etc. with and during lock dress object, effectively the disappearance of antidetonation and anti-locking is to be that of the present utility model grinding created the motivation place.

The purpose of this utility model provides a kind of anti-locking shock-proof check nut, the outer tooth of spiral spring shape and the spring that interior tooth is had are made in utilization, but enable elasticity that the chimeric back of collaborative axial bolt tooth and croze had the moving property that contracts, and it is referenced in the lock matched ring border of bolt and nut, enable to produce shock-proof check, spiral shell anti-fracture and anti-locking is established effect.

In order to achieve the above object, the utility model adopts following technical proposals: a kind of anti-locking shock-proof check of the utility model nut, its structure comprises a cap body (5), an inner tooth sleeve (6) and a screw rod 7, it is characterized by: this cap body (5) inside has a croze hole (51), and another concentric round tooth hole (52), and on the tread (53) between this tooth hole (52) and croze hole (51), offer a screw (54); The integral body of this inner tooth sleeve (6) forms the spring shape form of spiral, have on each spring coil of its outer wall axial croze tooth (61) around, and each ring (64) wall of the endoporus of inner tooth sleeve (6) is shaped on interior tooth (62); Run through being provided with screw (63) on the end wall of this inner tooth sleeve (6), make correspondingly, can therebetween wear lock one screw rod (7), inner tooth sleeve (6) can be locked in the cap body (5) by bundle with the screw (54) offered in the cap body (5).The interior tooth (62) of above-mentioned inner tooth sleeve (6) and outer tooth (21) be the embedding overmask mutually, is to possess one to be beneficial to the between cog (P2) of putting spring to good use between each ring (64) of this inner tooth sleeve (6).

In fact bolt of the present utility model and nut are can be distinctly to revolve lock with traditional nut or bolt to use, and also can merge to revolve lock and use.

The nut that adopts technical solutions of the utility model to make can produce shock-proof check, spiral shell anti-fracture and anti-locking is established effect.

The drawing of accompanying drawing is described as follows:

Fig. 1 is a three-dimensional exploded view of the present utility model;

Fig. 2 is that the utility model is used in the cut-away view in the enclosed type assembling tooth hole;

Fig. 3 is that the utility model is used in the cut-away view that takes out key in the enclosed type assembling tooth hole;

Fig. 4 is the A-A cut-away view of the utility model Fig. 3;

Fig. 5 amplifies cut-away view in the part when to be the utility model outer tooth socket with assembling tooth hole be meshed;

Fig. 6 is that the utility model bolt combines the also cut-away view of usefulness with nut;

Fig. 7 is the B-B cut-away view of the utility model Fig. 6;

Fig. 8 is that cut-away view is amplified in the part of the utility model inner tooth sleeve when being meshed with outer tooth socket.

Below in conjunction with embodiment the technical solution of the utility model is done further statement:

Consult shown in Figure 1ly, bolt of the present utility model comprises a key 1, an outer tooth socket 2, a countersink head screw 3 and a collar 4 and forms, wherein:

These key 1 one ends form the bolt head 11 of outer-hexagonal, and the other end forms the bolt tooth 12 of the axial circular row form of tool;

The integral body of this outer tooth socket 2 forms the spring shape form of spiral, have outer tooth 21 on each spring coil of outer wall, and each spring coil 23 wall of the endoporus of outer tooth socket 2 is shaped on axial croze 22;

Use the form of making of upper bolt 1 and outer tooth socket 2, make the croze 22 hole portion embedding groups of the corresponding outer tooth socket 2 of bolt tooth 12 anchor rings of key 1, but form axial mounting on key 1 and the mat spring trace outer tooth socket 2 that contracts and move.

This key 1 center offers a screw that runs through 15 in addition, can be in key 1 end to should screw 15 and the collaborative collars 4 and lock is organized a screw 3; These screw 3 one ends form headpin 31, and the other end forms tooth portion 32, and there are cleat stanchion 33 in 32 in headpin 31 and tooth portion, and hexagonal immersed oneself in 34 and 35 in the end face of headpin 31 and tooth portion 32 all was shaped on simultaneously;

This collar 4 centers one end is shaped on a suitable cleat stanchion 33 and wears the cleat stanchion hole 42 of carrying, and the collar 4 center the other ends are shaped on the headpin hole 43 that is fit to headpin 31 built-in appearance covers in addition, 43 side end faces, headpin hole of the collar 4 are shaped on inclined thrust surface 41 simultaneously, so that can earlier the collar 4 be worn the headpin 31 and cleat stanchion 33 peripheries that are stated from screw 3, the pivot ring (shown in Fig. 2,3) when forming 3 rotations of reduction screw between this headpin 31 and extraneous any conflict thing;

During use the collar 4 worn earlier and be stated from the screw 3, the tooth portion 32 of screw 3 is locked in the center screw 15 of key 1, short headpin 31 and cleat stanchion 33 can press from both sides the end (as Fig. 2) that guide pin bushing ring 4 removes to push against the outer tooth socket 2 that is embedded on the key 1, so that restriction outer tooth socket 2 is embedded at the stability on the bolt tooth 12;

This screw 3 is worn the purposes of the group collar 4, removes to keep off and holds on the key 1 by the outer tooth socket 2 of setting, and the inwall 80 in the assembling tooth hole 8 of still conflicting where necessary produces and oppositely leads the effect of holding taking-up key 1.

Show that as Fig. 1 nut structure of the present utility model is to comprise by a cap body 5, an inner tooth sleeve 6 and a screw rod 7 to be formed, wherein:

These cap body 5 inside have the croze hole 51 that enclose in big footpath, and another concentric round tooth hole 52 that encloses than path; Cooperate Fig. 5 or shown in Figure 6, should offer a screw 54 than on denticle hole 52 and the tread 53 than 51 of big croze holes;

The integral body of this inner tooth sleeve 6 is with forming the spring shape form of spiral, has axial croze tooth 61 on each spring coil of its outer wall around, and tooth 62 in each spring coil wall in hole is shaped within the inner tooth sleeve 6; Cooperate simultaneously to run through on the end wall of Fig. 5 or this inner tooth sleeve 6 shown in Figure 6 to be provided with screw 63, make correspondingly, can therebetween wear lock one screw rod 7, inner tooth sleeve 6 can be stable in the cap body 5 with the screws 54 offered in the above-mentioned cap body 5.

By composition form with upper member, with box lunch bolt arrangement is used in enclosed type assembling tooth hole 8 and locks dress object 81 when using (as shown in Figure 2), this is embedded at the outer spring spare 2 on the axial bolt tooth 12 of key 1, itself is because of the tool spring, when tooth portion on itself and the assembling tooth hole 8 is meshed, promptly produce the pressure accumulation state after locking, make one when run into lock dress object 81 with assemble 8 in tooth hole not specific during to shaking force, can contract along the axial elasticity of bolt tooth 12 and move, still belong to the engagement locking condition of tooth under this state to tooth, therefore can effectively stop to get loose, collapse tooth or block phenomenons such as bolt, be able to the vibrations conduction that its spring of mat and axial bolt tooth trace path absorb its external world relatively, reach the usefulness of anti-locking and antidetonation.

Moreover, after key 1 locks in enclosed type assembling tooth hole 8 (as shown in Figures 3 and 4), in case meet and because of shaking excessive or other factors, cause in the assembling tooth hole 8 by locked or stuck and can't unscrew when taking out key 1, can utilize this to be placed screw 3 on the key 1 by spiral shell, urge in the screw 15 of key 1, to insert the hexagon wrench, so that being inserted in the interior hexagonal of screw 3 immerses oneself in 35, drive on boldly to the inwall 80 in enclosed type assembling tooth hole 8 and in screw 15, implement rotation derivation screw 3, what make that the headpin 31 of screw 3 can be at the collar 4 holds down conflict inwall 80 mutually, and the effect of leading is revolved in the lasting rotation of the tooth portion 32 of mat screw 3, enable between the tooth journey of screw 15, to produce the effect that pushes away key 1 of oppositely nibbling, so that impel axial bolt tooth 12 tracks of whole key 1 energy mat, and passed out in the locked assembling tooth hole 8 by screw 3, and break away from outer tooth socket 2, formation has discharged the locking state in assembling tooth hole 8, allow outer tooth socket 2 still nibble in assembling tooth hole 8 simultaneously with spring, be when assembling key 1 once more for facility, axial bolt tooth 12 corresponding shaft are set to croze 22 phase sleeves, exempt the wasted work running of the spiral shell group of still needing.

Therebetween, when the outer tooth 21 of outer tooth socket 2 and assembling tooth hole 8 embedding overmask (cooperating shown in Figure 5) mutually, 23 of each rings of outer tooth socket 2, be to possess one to be beneficial to the between cog P1 that puts spring to good use, so that one when conduct from the external world in the assembling tooth hole 8 not specific to shaking force and when arriving, can each between cog P1 of mat and the axial bolt tooth 12 rail footprint that is embedded at croze 22 absorb this shock effect power, in case key 1 is by locked or collapse puzzlement such as tooth, and then reach the effect of antidetonation.

With respect to, bolt arrangement is made and nut structure of the present utility model (as Figure 6 and Figure 7) during assembly mutually, in the

assembly hole

84 and 85 on this assembling object and the lock dress object, be to place bolt arrangement and nut structure respectively, impel the outer tooth 21 of the outer tooth socket 2 that key 1 periphery axially sets, the spiral shell group can be meshed with the interior tooth 62 of the inner tooth sleeve 6 of axially setting in the cap body 5, to the locking location, again with 7 lockings of the screw rod on the cap body 6, so that make the interior tooth 62 of each cup spring of inner tooth sleeve 6 all can reduce between cog P2 (being detailed later) synchronously, and then the outer tooth 21 of packing tool spring once more, produce revolving mutually of two-way spring coil tooth journey and lock the packing active force, thus, its shockproof and anti-effectiveness that gets loose is just more obvious; Opposite, when desire is separated bolt and nut,, discharge inner tooth sleeve 6 as long as unscrew screw rod 7 earlier, get loose subsequently key 1 or cap body 5 all can reach the effect of dismounting again.

Therebetween, when the interior tooth 61 of the outer tooth 21 of outer tooth socket 2 and inner tooth sleeve 6 embedding overmask (cooperation Fig. 8) mutually, possessing one except that 23 of each rings of outer tooth socket 2 is beneficial to the between cog P1 that puts spring to good use, 6 of each rings of this inner tooth sleeve 6 are also identical to be possessed one and is beneficial to the between cog P2 that puts spring to good use, this between cog P2 can be screw rod 7 and regulates and control, so that one when suffering shaking force, energy mat between cog P2 and P1 together store the spring pressure condition, and reach the absorbing vibration active force, in case key 1 is by locked or collapse puzzlements such as tooth, and then reach the effect of antidetonation.

In addition, above cited interior tooth 62 of the utility model and outer tooth 21 are with the sign of v thread as embodiment, in fact also applicable to application such as square thread and trapezoidal threads, all belong to the category of quoting of the present utility model, and and Chen Ming.

Claims

1, a kind of anti-locking shock-proof check nut, its structure comprises a cap body (5), an inner tooth sleeve (6) and a screw rod 7, it is characterized by:

This cap body (5) inside has a croze hole (51), and another concentric round tooth hole (52), and on the tread (53) between this tooth hole (52) and croze hole (51), offers a screw (54);

The integral body of this inner tooth sleeve (6) forms the spring shape form of spiral, have on each spring coil of its outer wall axial croze tooth (61) around, and each ring (64) wall of the endoporus of inner tooth sleeve (6) is shaped on interior tooth (62);

Run through being provided with screw (63) on the end wall of this inner tooth sleeve (6), make correspondingly, can therebetween wear lock one screw rod (7), inner tooth sleeve (6) can be locked in the cap body (5) by bundle with the screw (54) offered in the cap body (5).

2, according to the shock-proof check of anti-locking described in the claim 1 nut, the interior tooth (62) that it is characterized in that inner tooth sleeve (6) and outer tooth (21) be the embedding overmask mutually, is to possess one to be beneficial to the between cog (P2) of putting spring to good use between each ring (64) of this inner tooth sleeve (6).