CN207795812U - A kind of combination stop nut and coupling structure using tapered thread locking - Google Patents
A kind of combination stop nut and coupling structure using tapered thread locking Download PDFInfo
- Publication number
- CN207795812U CN207795812U CN201721627813.9U CN201721627813U CN207795812U CN 207795812 U CN207795812 U CN 207795812U CN 201721627813 U CN201721627813 U CN 201721627813U CN 207795812 U CN207795812 U CN 207795812U
- Authority
- CN
- China
- Prior art keywords
- thread
- nut
- combination stop
- stop nut
- screw thread
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Dowels (AREA)
Abstract
The utility model is related to technical field of fastening more particularly to a kind of combination stop nuts and coupling structure using tapered thread locking.A kind of combination stop nut locked using tapered thread, includes the nut main body with the internal thread for tie down screw and matched locking nut, it is characterised in that：The locking nut has conical internal thread；The nut main body has external screw thread, and there is the nut main body externally threaded part to be equipped with axial retraction slot.The combination stop nut has outstanding anti-loose ability under high frequency oscillation, and practicality is strong, applicability is wide.
Description
Technical field
The utility model is related to technical field of fastening more particularly to a kind of locking spiral shells of combination locked using tapered thread
Female and coupling structure.
Background technology
In actual operation, often more than two engaging portions are fixed using screw rod and nut, however when external load has
When vibration, variation, material at high temperature creep, frictional force is reduced between causing thread connection, and normal pressure exists in thread connection
A certain pop-off, frictional force 0, to make thread connection loosen, if by repeated action, thread connection will relax and
Failure.Therefore, it is necessary to carry out locking, it otherwise can influence to work normally, cause the accident.It can be seen that there are two types of principles for locking tool：
First, eliminating（Or limitation）Relative motion between screw thread pair, second is that increasing the difficulty of relative motion.
In the prior art, locking thread has following several method：1. it is locking using additional friction force, for example increase spring
Gasket, uses double nut etc. at nylon ring；2. locking using special locking element, for example channel nut and split pin, there is band
Round nut, locked spacer of wing gasket etc.；3. locking using adhesive bonding.These three methods in actual use, are applicable in model
It encloses narrow and easily damages.
The patent document of Patent No. CN201510247155 discloses such a self locking anti-loose nut, including main nut
And locking nut, it is characterised in that：The main nut includes main part and tight lock part, the locking nut and the tight lock part phase
Adaptation；Wherein, the tight lock part includes outer centrum and the external screw rod between the outer centrum and main part, the locking
The internal thread in portion is continuously consistent with the internal thread of the main part；It is provided in the outer centrum and the junction of the external screw rod
Annular arc groove is uniformly arranged 8-12 axial groove on the outer centrum, in the axial groove and the annular groove
Junction is provided with hole；It is provided with and the matched spiral shell of the external screw thread of the external screw rod in the interior forward end of the locking nut
Line, Internal back end are interior centrum compatible with the outer centrum.
This stop nut is to utilize the outer centrum of tight lock part and external screw rod external screw thread and the interior centrum inside locking nut
Cooperation with internal thread and it is axially grooved achieve the purpose that it is locking.Do not have screw thread on the outer centrum and interior centrum side, outside
Screw thread and internal thread are straight thread, and straight thread is after complementing each other to form screw thread pair, and the power that external screw thread is subject to is upward, interior spiral shell
The power that line is subject to is downward so that has hole generation between screw thread；In locking, internal thread and external screw thread are interior by axial unilateral pressure
Centrum taper is also caused have unilateral gap and pulling force when screw-threaded coupling by the unidirectional pulling force of screw thread, therefore is locked in the case of earthquake
Nut can generate loosening because gap and screw rod are to pulling force, in turn result in stop nut loosening.
Invention content
The utility model will solve the above problems, and provide a kind of combination stop nut locked using tapered thread, this
When combining stop nut locking, opposite gapless between lock portion thread connection, screw rod axial direction with respect to no pulling force or
Person's pressure, therefore it is difficult to happen under high frequency oscillation the relative motion between screw thread, there is outstanding anti-loose ability.
The technical solution that the utility model solves the problems, such as is to provide a kind of locking spiral shell of the combination locked using tapered thread
Mother includes the nut main body with the internal thread for tie down screw and matched locking nut, it is characterised in that：It is described
Locking nut has conical internal thread；The nut main body has external screw thread, and the nut main body has externally threaded part
Equipped with axial retraction slot.
Preferably, the nut main body includes fastening part and the tight lock part that is arranged on fastening part, the external screw thread setting
On tight lock part lateral surface, the retraction slot is opened on tight lock part.
Preferably, the external screw thread is straight thread or tapered thread.
Preferably, there is the male ends circumferential groove of annular, the circumferential groove slot bottom to be deeper than or flush in outer spiral shell
The end thread tooth bottom of line.
Preferably, the unilateral taper of the conical internal thread is greater than or equal to the external screw thread.
Preferably, the externally threaded unilateral taper of the tight lock part is 0 ° -15 °.
Preferably, the externally threaded unilateral taper of the tight lock part is 1 ° -10 °.
Preferably, the externally threaded unilateral taper of the tight lock part is 1 ° -6 °.
Preferably, the externally threaded unilateral taper of the tight lock part is 1.5 ° -5 °.
Preferably, the externally threaded unilateral taper of the tight lock part is 1.5 ° -3 °.
Preferably, the unilateral taper of the conical internal thread of the locking nut is 1 ° -30 °.
Preferably, the unilateral taper of the conical internal thread of the locking nut is 1 ° -10 °.
Preferably, the unilateral taper of the conical internal thread of the locking nut is 1.5 ° -5 °.
Preferably, the unilateral taper of the conical internal thread of the locking nut is 2 ° -3 °.
Preferably, the retraction slot is 1-10 items.
Preferably, the retraction slot is 2-8 items.
Preferably, the retraction slot is 4-6 items.
Preferably, the serrated end end face of the retraction slot is concordant with the end face of tight lock part, the connecting pin end face of retraction slot with
Joint face between fastening part and tight lock part is concordant.
Another purpose of the utility model is to provide a kind of checknut coupling structure, it is characterised in that：Including opening up
There is retraction slot and the main body with external screw thread and internal thread, the external screw thread couple with conical internal thread, the internal thread and spiral shell
Bar external screw thread couples.
The beneficial effects of the utility model：
1. conical internal thread and externally threaded cooperation so that it is patch that screw thread is enclosed in the connection place at least one between its screw thread
Tight, to ensure that preliminary compactness.
2. when locking nut locking nut main body, the power that tight lock part is gradually screwed by conical internal thread inwardly collapses, from
And the screw rod that banding couples with its internal thread, achieve the effect that lock between nut main body and screw rod.
3. on the basis of preliminary combine closely, tight lock part elastic dilatation under the reaction of retraction slot, external screw thread by
Outside elastic dilatation power, and under the active force of conical internal thread so that the connection place between conical internal thread and external screw thread
Each circle screw thread has all reached " killing " effect, to ensure that the lock portion two sides gapless effect, has reached locking screw
The effect locked between female and nut main body.
4. the elasticity of the locking effect and contraction flow region between nut main body and screw rod, locking nut collapses, expansion effect
Fruit so that though total under high frequency oscillation, the spiral shell between locking nut and nut main body, between nut main body and screw rod
Line connection place remains closely gapless occlusive state, and relative motion will not occur because of external force and loosened to generate.
5. when after assembly nut main body on screw rod, also unassembled locking nut, it is arbitrary that nut main body can be spun on screw rod
Position；After assembling locking nut, which is locked at the position, achievees the effect that hovering locking；The combination
Stop nut can be used in the locking of screw rod any part, highly practical.
6. the internal thread of nut main body can make arbitrary size to coordinate corresponding screw rod, applied widely.
Description of the drawings
Fig. 1 be it is a kind of using tapered thread lock combination stop nut connection before structural schematic diagram；
Fig. 2 be it is a kind of using tapered thread lock combination stop nut connection after structural schematic diagram；
Fig. 3 is a kind of force analysis figure for the combination stop nut locked using tapered thread；
In figure：100- nut main bodies, 101- internal threads, 110- tight lock parts, 111- external screw threads, 112- circumferential grooves, 113- are received
Contracting slot, the fastening parts 120-, 200- locking nuts, 210- conical internal threads.
Specific implementation mode
It is specific embodiment of the utility model below, and in conjunction with attached drawing, the technical solution of the utility model is made into one
The description of step, but the utility model is not limited to these examples.
Embodiment 1
A kind of combination stop nut locked using tapered thread, as shown in Figure 1 and Figure 2, this locking suitable nut of combination can
It is locking that connection fastening is carried out suitable for the screw rod to arbitrary structures and in its any part comprising mutually matched nut main body
100 and locking nut 200.
Locking nut 200 has internal thread, and its internal thread is conical internal thread 210.
Nut main body 100 includes from top to bottom including integrally formed tight lock part 110 and fastening part 120,110 He of tight lock part
Internal thread 101 is all had in fastening part 120, and tight lock part 110 is continuous consistent with the internal thread 101 of fastening part 120.Tight lock part
110 also there is external screw thread 111,111 end of external screw thread to have the circumferential groove 112 of annular, and circumference with the junction of fastening part 120
The slot bottom of slot 112 is deeper than the end thread tooth bottom of 110 external screw thread 111 of tight lock part.Axial retraction slot is offered on tight lock part 110
113, and 112 serrated end end face of retraction slot is concordant with 110 free end end face of tight lock part, slot bottom connecting pin end face and fastening part 120
Joint face between tight lock part 110 is concordant.
Specifically, the parameter of the combination stop nut is：Fastening part 120 is the outer-hexagonal spiral shell of opposite side 25mm, height 10mm
It is female.The total height of tight lock part 110 is 11mm；The cone taper of external screw thread 111 is 4 °, and small end outer diameter is 13mm, and screw pitch is
0.5mm；The groove depth a diameter of 13mm, groove width 3mm of circumferential groove 112；Retraction slot 113 use cross recess, i.e. 4 bar grooves, groove width 1mm,
Groove depth 11mm.Locking nut 200 is opposite side 25mm, and the outer-hexagonal nut of height 10mm has in the taper that centrum taper is 5 °
The small end outer diameter of screw thread 210, conical internal thread 210 is 12.5mm.
The utility model implementation principle is：First threaded body 100 is made by its internal thread 101 and using fastening part 120
It is tightened in screw rod for spanner end to need to be fastened on locking position, then locking nut 200 is passed through into its 210 He of conical internal thread
The cooperation of external screw thread 111 in threaded body 100 is linked together with fastening part 110.
As shown in Figure 3：Locking nut 200 is during tightening tight lock part 110, due to the presence of conical internal thread 210,
Power F1 can be generated to nut main body 100, and due to the presence of retraction slot 113 and circumferential groove 112, F1 enables tight lock part 110
It is enough inwardly to collapse, from circumferential diminution, so that tight lock part 110 is to the interior screw rod connected by internal thread 101 of nut main body 100
Circumferential tightening force F3 is generated, the effect of close banding between nut main body 100 and screw rod is obtained.Again due to retraction slot 113 itself
Have the tendency that replying outward, revolt and collapse, there is reaction force F2, under the action of F1 and F2, locking nut 200 and nut master
Also combined closely between body 100, and locking nut 200 to nut main body screw rod axially opposing no pulling force and pressure
Power, to reach outstanding anti-loosing effect.
Particularly, in the prior art, exist a kind of " tapered tread ", tapered tread has dry seal effect, sealing
The principle of effect is：Tapered tread connection after, always have between screw thread one group be just be adjacent to ensure that sealing, that is,
Say that a characteristic of tapered thread is exactly that a minimum of circle screw thread in connection place is adjacent to, engagement place is exactly at sealing.With this reality
In novel, the complete gapless obtained by the elastic actuating of tapered thread and retraction slot is engaged to reach locking effect
Fruit is different.
The present embodiment is used in actual tests, is tested platform with abrasive machine, this experiment is carrying tapered thread with this
After stop nut combination fastening, abrasive machine is driven anti-vehicle, in the case where opening anti-vehicle, makees vibrations and dawdles, for a long time without pine
Dynamic anti-loosing effects are fairly obvious.
Embodiment 2
The structure of the present embodiment is essentially identical with above-described embodiment, differs only in this in the present embodiment and utilizes taper spiral shell
The design parameter of the combination stop nut of line locking is different, and structure something in common is not described in detail.
In the present embodiment, the slot bottom of circumferential groove 112 is concordant with the end thread tooth bottom of 110 external screw thread 111 of tight lock part, specifically
Parameter is：Using M12 master screws as implementation screw rod.The fastening part 120 of nut main body 100 is opposite side 5mm, high 10mm it is outer
Hex nut；The total high 15mm of tight lock part 110, the centrum taper of external screw thread 111 is 0 °, as straight thread, and outer diameter is
17mm, screw pitch 1mm；The groove depth a diameter of 15.5mm, groove width 3mm of circumferential groove 112；Retraction slot 113 use cross recess, i.e., 4
Slot, groove width 1mm, groove depth diameter 15mm.Locking nut 200 is the outer-hexagonal nut of opposite side 25mm, high 10mm, conical internal thread
210 small end outer diameters are 16.5mm, i.e., than 110 small 0.5mm of tight lock part, cone taper is 3.5 °.
The present embodiment is screwed to the stop nut combination with tapered thread on M12 master screws so that locking nut 200
Between nut main body 100, between nut main body 100 and screw rod especially as being embraced with two-way " chock " wedging " anchor ear ", reach
Locking purpose is arrived.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Claims (10)
1. a kind of combination stop nut locked using tapered thread, includes with the internal thread for tie down screw（101）'s
Nut main body（100）With matched locking nut（200）, it is characterised in that：The locking nut（200）With in taper
Screw thread（210）；The nut main body（100）With external screw thread（111）, and the nut main body（100）With external screw thread（111）
Part be equipped with axial retraction slot（113）.
2. a kind of combination stop nut locked using tapered thread according to claim 1, it is characterised in that：The spiral shell
Female main body（100）Including fastening part（120）With setting in fastening part（120）On tight lock part（110）, the external screw thread（111）
It is arranged in tight lock part（110）On lateral surface, the retraction slot（113）It is opened in tight lock part（110）On.
3. a kind of combination stop nut locked using tapered thread according to claim 1, it is characterised in that：It is described outer
Screw thread（111）For straight thread or tapered thread.
4. a kind of combination stop nut locked using tapered thread according to claim 1, it is characterised in that：It is described outer
Screw thread（111）End has the circumferential groove of annular（112）, the circumferential groove（112）Slot bottom is deeper than or flushes in external screw thread（111）
End thread tooth bottom.
5. a kind of combination stop nut locked using tapered thread according to claim 1, it is characterised in that：The cone
Shape internal thread（210）Unilateral taper be greater than or equal to the external screw thread（111）.
6. a kind of combination stop nut locked using tapered thread according to claim 1, it is characterised in that：It is described outer
Screw thread（111）Unilateral taper be 0 ° -15 °.
7. a kind of combination stop nut locked using tapered thread according to claim 1, it is characterised in that：The cone
Shape internal thread（210）Unilateral taper be 1 ° -30 °.
8. a kind of combination stop nut locked using tapered thread according to claim 1, it is characterised in that：The receipts
Contracting slot（113）For 1-10 items.
9. a kind of combination stop nut locked using tapered thread according to claim 2, it is characterised in that：The receipts
Contracting slot（113）Serrated end end face and tight lock part（110）End face it is concordant, retraction slot（113）Connecting pin end face and fastening part
（120）And tight lock part（110）Between joint face it is concordant.
10. one kind includes coupling structure of claim 1 ~ 9 any one using the combination stop nut of tapered thread locking,
It is characterized in that：Including offering retraction slot（113）And there is external screw thread（111）And internal thread（101）Main body, the external screw thread
（111）With conical internal thread（210）Connection, the internal thread（101）Couple with external thread of screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721627813.9U CN207795812U (en) | 2017-11-29 | 2017-11-29 | A kind of combination stop nut and coupling structure using tapered thread locking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721627813.9U CN207795812U (en) | 2017-11-29 | 2017-11-29 | A kind of combination stop nut and coupling structure using tapered thread locking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207795812U true CN207795812U (en) | 2018-08-31 |
Family
ID=63284931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721627813.9U Active CN207795812U (en) | 2017-11-29 | 2017-11-29 | A kind of combination stop nut and coupling structure using tapered thread locking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207795812U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107740807A (en) * | 2017-11-29 | 2018-02-27 | 忻建国 | A kind of combination stop nut locked using tapered thread |
| CN108953352A (en) * | 2018-09-30 | 2018-12-07 | 孙团结 | A kind of crawler belt stop nut |
| CN109751323A (en) * | 2019-01-29 | 2019-05-14 | 武筱茜 | A kind of self-locking thread pair |
| CN110259802A (en) * | 2019-05-14 | 2019-09-20 | 李波 | Anti-loosening bumps combination nut |
| CN110848232A (en) * | 2019-12-06 | 2020-02-28 | 荆门市佰思机械科技有限公司 | Tight-clamping interlocking locknut |
| CN112943776A (en) * | 2021-03-10 | 2021-06-11 | 扬州工业职业技术学院 | High-strength special nut with constant friction coefficient |
-
2017
- 2017-11-29 CN CN201721627813.9U patent/CN207795812U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107740807A (en) * | 2017-11-29 | 2018-02-27 | 忻建国 | A kind of combination stop nut locked using tapered thread |
| CN107740807B (en) * | 2017-11-29 | 2024-05-10 | 忻建国 | Combined locknut locked by conical threads |
| CN108953352A (en) * | 2018-09-30 | 2018-12-07 | 孙团结 | A kind of crawler belt stop nut |
| CN109751323A (en) * | 2019-01-29 | 2019-05-14 | 武筱茜 | A kind of self-locking thread pair |
| CN110259802A (en) * | 2019-05-14 | 2019-09-20 | 李波 | Anti-loosening bumps combination nut |
| CN110848232A (en) * | 2019-12-06 | 2020-02-28 | 荆门市佰思机械科技有限公司 | Tight-clamping interlocking locknut |
| CN112943776A (en) * | 2021-03-10 | 2021-06-11 | 扬州工业职业技术学院 | High-strength special nut with constant friction coefficient |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207795812U (en) | A kind of combination stop nut and coupling structure using tapered thread locking | |
| CN107740807A (en) | A kind of combination stop nut locked using tapered thread | |
| CN204175767U (en) | Dual anti-loosing nut external member | |
| US9322426B2 (en) | Nut and sleeve fastener | |
| CN203532477U (en) | Eccentric type self-locking locknut | |
| CN205064529U (en) | Interlocking locknut subassembly | |
| CN108119491A (en) | A kind of seperated auto-lock stop nut | |
| JP2014159728A (en) | Anchor head for tie rod | |
| CN203067490U (en) | Locknut | |
| CN108662005A (en) | A kind of special eccentric locking nut | |
| CN105114436A (en) | Interlocked stop nut assembly | |
| CN108591228A (en) | A kind of anti-loosen screw nut component and stop nut lock | |
| CN108757700A (en) | Deformation type anti-loosen screw nut component | |
| CN110425213A (en) | A kind of Novel anti-loosing bolt | |
| CN209654405U (en) | Deformation type anti-loosen screw nut component | |
| US3367684A (en) | Pressure fitting for a tube joint | |
| CN206320157U (en) | The Anti-loosen stop nut radially locked | |
| EP0864061B1 (en) | A connector for high-pressure metal pipes | |
| KR101185765B1 (en) | Self-locking nut with flange | |
| CN206600343U (en) | Combination nut | |
| WO2020228487A1 (en) | Anti-loosening recessed-protruding combination nut | |
| CN108443288B (en) | Fastening piece | |
| CN206175448U (en) | Nut fastener | |
| CN208587384U (en) | A kind of anti-loosen screw nut component and stop nut lock | |
| CN208845554U (en) | A kind of threaded components of fastened concentric |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |